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249 results on '"Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP]"'

1. The Exostosin Immunohistochemical Status Differentiates Lupus Membranous Nephropathy Subsets With Different Outcomes

Author: Xavier Belenfant, Philippe Rouvier, Pierre Ronco, Isabelle Brocheriou, Emmanuel Esteve, Michèle Saïdi, David Buob, Tim Ulinski, Sophie Tuffet, Hanna Debiec, Zahir Amoura, Makoto Miyara, Des Maladies Rénales Rares aux Maladies Fréquentes, Remodelage et Réparation, Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU), Service d'Anatomie et cytologie pathologiques [CHU Pitié-Salpêtrière] (ACP), CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Service de Néphrologie et Dialyses [CHU Tenon], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Tenon [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Unité de Recherche Clinique de l’Est Parisien [CHU Saint-Antoine] (URC-EST), Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts (CHNO)-CHU Tenon [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Rothschild [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Service de médecine interne et d'immunologie clinique [CHU Pitié-Salpêtrière], Centre Hospitalier Intercommunal André Grégoire [Montreuil] (CHI André Gregoire), Service de néphrologie et pédiatrie générale [CHU Trousseau], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Service d'Anatomie et cytologie pathologiques = Service de Pathologie [CHU Pitié-Salpêtrière] (ACP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Service de Département de Néphrologie = Service de Néphrologie et Dialyses [CHU Tenon], CHU Tenon [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Direction de la Recherche Clinique et de l'Innovation [AP-HP] (DRCI), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Service de Département de médecine interne et immunologie clinique [CHU Pitié-Salpêtrière] (DMIIC), CHU Trousseau [APHP], HAL-SU, Gestionnaire, and Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Saint-Antoine [AP-HP]
Subjects: Pathology, medicine.medical_specialty, 030232 urology & nephrology, [SDV.MHEP.UN]Life Sciences [q-bio]/Human health and pathology/Urology and Nephrology, 03 medical and health sciences, 0302 clinical medicine, renal biopsy, systemic lupus erythematosus, Membranous nephropathy, Research Letter, medicine, skin and connective tissue diseases, 030304 developmental biology, 0303 health sciences, Systemic lupus erythematosus, medicine.diagnostic_test, business.industry, membranous nephropathy, medicine.disease, [SDV.MHEP.UN] Life Sciences [q-bio]/Human health and pathology/Urology and Nephrology, 3. Good health, [SDV.IMM.IA]Life Sciences [q-bio]/Immunology/Adaptive immunology, Nephrology, [SDV.IMM.IA] Life Sciences [q-bio]/Immunology/Adaptive immunology, exostosin, immunohistochemistry, Immunohistochemistry, Renal biopsy, business
Abstract: International audience; Exostosin (EXT) 1 and EXT2 proteins are recently discovered major components of the subepithelial deposits in a subset of patients with membranous nephropathy (MN).1,2 Although the detection of EXT1/2 seems to be a distinctive feature of MN related to systemic lupus erythematosus (SLE),1 the exact frequency of EXT-positive, SLE-associated MN (SLE-MN) and its potential clinical significance are not well determined.Here, we retrospectively evaluated 86 consecutive patients with biopsy-proven pure class 5 SLE-MN diagnosed between January 2010 and December 2018 in 2 nephropathology centers (La Pitié Salpêtrière and Tenon hospitals) in Paris, France; mixed classes (3 + 5 and 4 + 5 of the 2003 ISN/Renal Pathology Society classification)3 were excluded.
Published: 2021

2. Lean regional muscle volume estimates using explanatory bioelectrical models in healthy subjects and patients with muscle wasting

Author: Bachasson, Damien, Carras Ayaz, Alper, Mosso, Jessie, Canal, Aurélie, Boisserie, Jean-Marc, Araujo, Ericky, Benveniste, Olivier, Reyngoudt, Harmen, Marty, Benjamin, Carlier, Pierre, Hogrel, Jean-Yves, Institut de Myologie, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Association française contre les myopathies (AFM-Téléthon)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Service MIRCEN (MIRCEN), Université Paris-Saclay-Institut de Biologie François JACOB (JACOB), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Centre de recherche en Myologie – U974 SU-INSERM, Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Gestionnaire, Hal Sorbonne Université, Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut de Biologie François JACOB (JACOB), CHU Pitié-Salpêtrière [AP-HP], Centre de Recherche en Myologie, CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Centre National de la Recherche Scientifique (CNRS)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Association française contre les myopathies (AFM-Téléthon)-Sorbonne Université (SU), Institut de Biologie François JACOB (JACOB), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP]
Subjects: Bioelectrical impedance analysis, lcsh:Diseases of the musculoskeletal system, Muscle volume, [SDV]Life Sciences [q-bio], Skeletal muscle, Reproducibility of Results, Muscle mass, lcsh:Human anatomy, Original Articles, Healthy Volunteers, lcsh:QM1-695, [SDV] Life Sciences [q-bio], Body Composition, Electric Impedance, Humans, Original Article, Myopathies, Muscle atrophy, lcsh:RC925-935, Muscle fatty infiltration, Muscle, Skeletal
Abstract: International audience; Background: The availability of non-invasive, accessible, and reliable methods for estimating regional skeletal muscle volume is paramount in conditions involving primary and/or secondary muscle wasting. This work aimed at (i) optimizing serial bioelectrical impedance analysis (SBIA ) by computing a conductivity constant based on quantitative magnetic resonance imaging (MRI) data and (ii) investigating the potential of SBIA for estimating lean regional thigh muscle volume in patients with severe muscle disorders.Methods: Twenty healthy participants with variable body mass index and 20 patients with idiopathic inflammatory myopathies underwent quantitative MRI. Anatomical images and fat fraction maps were acquired in thighs. After manual muscle segmentation, lean thigh muscle volume (lVMRI ) was computed. Subsequently, multifrequency (50 to 350 kHz) serial resistance profiles were acquired between current skin electrodes (i.e. ankle and hand) and voltage electrodes placed on the anterior thigh. In vivo values of the muscle electrical conductivity constant were computed using data from SBIA and MRI gathered in the right thigh of 10 healthy participants. Lean muscle volume (lVBIA ) was derived from SBIA measurements using this newly computed constant. Between-day reproducibility of lVBIA was studied in six healthy participants.Results: Electrical conductivity constant values ranged from 0.82 S/m at 50 kHz to 1.16 S/m at 350 kHz. The absolute percentage difference between lVBIA and lVMRI was greater at frequencies >270 kHz (P < 0.0001). The standard error of measurement and the intra-class correlation coefficient for lVBIA computed from measurements performed at 155 kHz (i.e. frequency with minimal difference) against lVMRI were 6.1% and 0.95 in healthy participants and 9.4% and 0.93 in patients, respectively. Between-day reproducibility of lVBIA was as follows: standard error of measurement = 4.6% (95% confidence interval [3.2, 7.8] %), intra-class correlation coefficient = 0.98 (95% confidence interval [0.95, 0.99]).Conclusions: These findings demonstrate a strong agreement of lean muscle volume estimated using SBIA against quantitative MRI in humans, including in patients with severe muscle wasting and fatty degeneration. SBIA shows promises for non-invasive, fast, and accessible estimation and follow-up of lean regional skeletal muscle volume for transversal and longitudinal studies.
Published: 2020

3. Impact of the SARS-CoV-2 Epidemic on Lung Cancer Surgery in France: A Nationwide Study

Author: Pierre-Benoit Pages, Jonathan Cottenet, Philippe Bonniaud, Pascale Tubert-Bitter, Lionel Piroth, Jacques Cadranel, Alain Bernard, Catherine Quantin, HAL-SU, Gestionnaire, Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), Hôpital du Bocage, Service Biostatistiques et Informatique Médicale (CHU de Dijon) (DIM), Université Bourgogne Franche-Comté [COMUE] (UBFC), Centre de référence maladies rares des maladies pulmonaires rares de l’adulte (CHU Dijon) (CRMR des maladies pulmonaires rares de l’adulte), Centre de recherche en épidémiologie et santé des populations (CESP), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Paul Brousse-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris-Saclay, Centre d'Investigation Clinique 1432 (Dijon) - Epidemiologie Clinique/Essais Cliniques (CIC-EC), Université de Bourgogne (UB)-Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon)-Institut National de la Santé et de la Recherche Médicale (INSERM), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Centre Constitutif de Référence des Maladies Pulmonaires Rares [AP-HP Tenon], Centre national de référence des maladies pulmonaires rares [Lyon] (CRMPM)-Service de Pneumologie = Pneumologie - Oncologie Thoracique - Maladies Pulmonaires Rares [CHU Tenon], CHU Tenon [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Tenon [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), The project was funded by the French Cancer Research Association (Fondation ARC pourla recherche sur le cancer)., Unité pneumologie et oncologie thoracique [CHU Tenon], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Centre national de référence des maladies pulmonaires rares [Lyon] (CRMPM)-Service de Pneumologie - Oncologie Thoracique - Maladies Pulmonaires Rares [CHU Tenon], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Tenon [AP-HP], CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], and Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)
Subjects: Cancer Research, [SDV.MHEP] Life Sciences [q-bio]/Human health and pathology, SARS-CoV-2, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, 030204 cardiovascular system & hematology, surgical activity volume, mortality, Article, 3. Good health, 03 medical and health sciences, lung cancer, 0302 clinical medicine, Oncology, administrative data, 030220 oncology & carcinogenesis, hospital, RC254-282, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract: International audience; Simple SummaryFew studies have investigated the link between SARS-CoV-2 and health restrictions and its effects on the health of lung cancer (LC) patients. This study aimed to assess the impact of SARS-CoV-2 on activity volume, postoperative complications and in-hospital mortality (IHM) for LC resections in 2020 at the national level in France. Our study shows a decrease in the volume of LC resections, especially during the first lockdown. We also show that only 0.43% of patients hospitalized for LC surgery during 2020 developed a SARS-CoV-2 infection, but this low rate is counterbalanced by a high IHM (21%) in these 51 patients. Our findings suggest that, even if the IHM is high, LC surgery is feasible during a pandemic provided that the general guidance protocols edited by the surgical societies are respected. Therefore, this study provides further arguments to encourage teams to test for COVID-19 prior to surgery and patients to be vaccinated.AbstractFew studies have investigated the link between SARS-CoV-2 and health restrictions and its effects on the health of lung cancer (LC) patients. The aim of this study was to assess the impact of the SARS-CoV-2 epidemic on surgical activity volume, postoperative complications and in-hospital mortality (IHM) for LC resections in France. All data for adult patients who underwent pulmonary resection for LC in France in 2020, collected from the national administrative database, were compared to 2018–2019. The effect of SARS-CoV-2 on the risk of IHM and severe complications within 30 days among LC surgery patients was examined using a logistic regression analysis adjusted for age, sex, comorbidities and type of resection. There was a slight decrease in the volume of LC resections in 2020 (n = 11,634), as compared to 2018 (n = 12,153) and 2019 (n = 12,227), with a noticeable decrease in April 2020 (the peak of the first wave of epidemic in France). We found that SARS-CoV-2 (0.43% of 2020 resections) was associated with IHM and severe complications, with, respectively, a sevenfold (aOR = 7.17 (3.30–15.55)) and almost a fivefold (aOR = 4.76 (2.31–9.80)) increase in risk. Our study suggests that LC surgery is feasible even during a pandemic, provided that general guidance protocols edited by the surgical societies are respected
Published: 2021
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4. Naive and memory CD4+ T cell subsets can contribute to the generation of human Tfh cells

Author: Jeger-Madiot, Raphaël, Vaineau, Romain, Heredia, Maud, Tchitchek, Nicolas, Bertrand, Lisa, Pereira, Mathias, Konza, Océane, Gouritin, Bruno, Hoareau-Coudert, Bénédicte, Corneau, Aurélien, Blanc, Catherine, Savier, Eric, Buffet, Pierre, Six, Adrien, Klatzmann, David, Moris, Arnaud, Graff-Dubois, Stéphanie, Centre d'Immunologie et de Maladies Infectieuses (CIMI), Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Immunologie - Immunopathologie - Immunothérapie [CHU Pitié Salpêtrière] (I3), CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Cytométrie Pitié-Salpêtrière (PASS-CYPS), Unité Mixte de Service Production et Analyse de données en Sciences de la vie et en Santé (PASS), Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Unité Mixte de Service d'Imagerie et de Cytométrie [CHU Saint-Antoine] (UMS LUMIC), Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU), Service de Chirurgie Digestive, Hépato-Bilio-pancréatique et Transplantation Hépatique [CHU Pitié-Salpétrière], CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Biologie Intégrée du Globule Rouge (BIGR (UMR_S_1134 / U1134)), Institut National de la Transfusion Sanguine [Paris] (INTS)-Université de La Réunion (UR)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pointe-à-Pitre/Abymes [Guadeloupe] -Université des Antilles (UA)-Université de Paris (UP), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Centre d'Immunologie et des Maladies Infectieuses (CIMI), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), Institut de Biologie Intégrative de la Cellule (I2BC), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU), Centre de Recherche Saint-Antoine (CRSA), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU), Institut National de la Transfusion Sanguine [Paris] (INTS)-Université de La Réunion (UR)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pointe-à-Pitre/Abymes [Guadeloupe] -Université des Antilles (UA)-Université Paris Cité (UPCité), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], and Tchitchek, Nicolas
Subjects: [SDV] Life Sciences [q-bio], [SDV]Life Sciences [q-bio], [SDV.IMM]Life Sciences [q-bio]/Immunology
Abstract: International audience; CD4 + T follicular helper cells (Tfh) promote B cell maturation and antibody production in secondary lymphoid organs. By using an innovative culture system based on splenocyte stimulation, we studied the dynamics of naive and memory CD4 + T cells during the generation of a Tfh cell response. We found that both naive and memory CD4 + T cells can acquire phenotypic and functional features of Tfh cells. Moreover, we show here that the transition of memory as well as naive CD4 + T cells into the Tfh cell profile is supported by the expression of pro-Tfh genes, including transcription factors known to orchestrate Tfh cell development. Using this culture system, we provide pieces of evidence that HIV infection differentially alters these newly identified pathways of Tfh cell generation. Such diversity in pathways of Tfh cell generation offers a new framework for the understanding of Tfh cell responses in physiological and pathological contexts.
Published: 2021

5. Germinal Center T follicular helper (GC-Tfh) cell impairment in chronic HIV infection involves c-Maf signaling

Author: Susan Moir, Rafael Cubas, Aarthi Talla, Margaret H. O’Connor, Carmen N. Nichols, Elias K. Haddad, Virginie Tardif, Brian Richardson, Mark J. Cameron, Mike Fang, Marita Chakhtoura, HAL-SU, Gestionnaire, Drexel University, Case Western Reserve University [Cleveland], Institute of Immunobiology [St. Gallen], Brustzentrum Kantonsspital St. Gallen, National Institute of Allergy and Infectious Diseases [Bethesda] (NIAID-NIH), National Institutes of Health [Bethesda] (NIH), Centre de recherche en Myologie – U974 SU-INSERM, Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Centre de Recherche en Myologie, CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP]
Subjects: RNA viruses, Male, 0301 basic medicine, Cell signaling, Physiology, Cellular differentiation, Cell, Signal transduction, Pathology and Laboratory Medicine, Biochemistry, White Blood Cells, 0302 clinical medicine, Immunodeficiency Viruses, Animal Cells, [SDV.MHEP.MI]Life Sciences [q-bio]/Human health and pathology/Infectious diseases, Immune Physiology, Medicine and Health Sciences, Cell differentiation, Biology (General), Innate Immune System, T Cells, 3. Good health, Cell biology, STAT signaling, medicine.anatomical_structure, [SDV.IMM.IA]Life Sciences [q-bio]/Immunology/Adaptive immunology, Medical Microbiology, Viral Pathogens, Proto-Oncogene Proteins c-maf, [SDV.IMM.IA] Life Sciences [q-bio]/Immunology/Adaptive immunology, Viruses, [SDV.MHEP.MI] Life Sciences [q-bio]/Human health and pathology/Infectious diseases, Infectious diseases, Cytokines, Female, Pathogens, Cellular Types, Antibody, Research Article, HIV infections, Medical conditions, Adult, T Follicular Helper Cells, QH301-705.5, Immune Cells, Immunology, Viral diseases, Biology, Microbiology, 03 medical and health sciences, Immune system, Downregulation and upregulation, Virology, Retroviruses, DNA-binding proteins, Genetics, medicine, Humans, Microbial Pathogens, Molecular Biology, Transcription factor, Blood Cells, Lentivirus, Organisms, Biology and Life Sciences, Proteins, HIV, Germinal center, Molecular Development, RC581-607, Germinal Center, Regulatory Proteins, Gene regulation, Cell cycle and cell division, 030104 developmental biology, Immune System, Chronic Disease, biology.protein, Parasitology, Gene expression, Immunologic diseases. Allergy, Developmental Biology, Transcription Factors, 030215 immunology
Abstract: We have recently demonstrated that the function of T follicular helper (Tfh) cells from lymph nodes (LN) of HIV-infected individuals is impaired. We found that these cells were unable to provide proper help to germinal center (GC)-B cells, as observed by altered and inefficient anti-HIV antibody response and premature death of memory B cells. The underlying molecular mechanisms of this dysfunction remain poorly defined. Herein, we have used a unique transcriptional approach to identify these molecular defects. We consequently determined the transcriptional profiles of LN GC-Tfh cells following their interactions with LN GC-B cells from HIV-infected and HIV-uninfected individuals, rather than analyzing resting ex-vivo GC-Tfh cells. We observed that proliferating GC-Tfh cells from HIV-infected subjects were transcriptionally different than their HIV-uninfected counterparts, and displayed a significant downregulation of immune- and GC-Tfh-associated pathways and genes. Our results strongly demonstrated that MAF (coding for the transcription factor c-Maf) and its upstream signaling pathway mediators (IL6R and STAT3) were significantly downregulated in HIV-infected subjects, which could contribute to the impaired GC-Tfh and GC-B cell functions reported during infection. We further showed that c-Maf function was associated with the adenosine pathway and that the signaling upstream c-Maf could be partially restored by adenosine deaminase -1 (ADA-1) supplementation. Overall, we identified a novel mechanism that contributes to GC-Tfh cell impairment during HIV infection. Understanding how GC-Tfh cell function is altered in HIV is crucial and could provide critical information about the mechanisms leading to the development and maintenance of effective anti-HIV antibodies., Author summary Human immunodeficiency virus (HIV) remains a worldwide burden despite available treatments. The virus induces dysregulations in major immune cells and organs including lymph nodes. Germinal center T follicular helper (GC-Tfh) cells are immune cells which induce specific anti-HIV antibodies by helping GC-B cells. In chronic HIV, the interaction between these two cell types is defective, leading to modified and inefficient anti-HIV antibody responses. In this study, we examined the underlying mechanisms of this dysfunction. We observed that proliferating GC-Tfh cells from HIV-infected individuals, displayed distinctive gene expression than those from -uninfected subjects, following GC-B cell interaction. Furthermore, GC-Tfh cells from HIV patients showed a reduction in important immune-related pathway and gene expression. A number of essential GC-Tfh cell genes, such as MAF and its associated genes (IL6R and STAT3), were particularly attenuated in HIV, contributing to the impaired cells function. Moreover, we found an association between MAF function and the key enzyme adenosine deaminase-1 (ADA-1), where supplementation with ADA-1 partially restored the dysfunctional signaling in GC-Tfh cells during chronic infection. Understanding how GC-Tfh cells are altered in HIV is critical to elucidate the mechanisms leading to effective anti-HIV antibodies.
Published: 2021

6. Quality of life in children with severe forms of idiopathic nephrotic syndrome in stable remission—A cross‐sectional study

Author: Stéphane Decramer, Georges Deschênes, Laurianne Micheland, Jean-Daniel Delbet, Tim Ulinski, Aphaia Roussel, Gestionnaire, Hal Sorbonne Université, Service de néphrologie et pédiatrie générale [CHU Trousseau], CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Hopital Saint-Louis [AP-HP] (AP-HP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Equipe 2 : ECSTRA - Epidémiologie Clinique, STatistique, pour la Recherche en Santé (CRESS - U1153), Université Paris Diderot - Paris 7 (UPD7)-Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité (CRESS (U1153 / UMR_A_1125 / UMR_S_1153)), Institut National de la Recherche Agronomique (INRA)-Université Paris Diderot - Paris 7 (UPD7)-Université Paris Descartes - Paris 5 (UPD5)-Université Sorbonne Paris Cité (USPC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de la Recherche Agronomique (INRA)-Université Paris Diderot - Paris 7 (UPD7)-Université Paris Descartes - Paris 5 (UPD5)-Université Sorbonne Paris Cité (USPC)-Institut National de la Santé et de la Recherche Médicale (INSERM), AP-HP Hôpital universitaire Robert-Debré [Paris], Centre Hospitalier Universitaire de Toulouse (CHU Toulouse), Sorbonne Université (SU), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Hôpital Purpan [Toulouse], CHU Toulouse [Toulouse], Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], and Université Paris Diderot - Paris 7 (UPD7)-Université Sorbonne Paris Cité (USPC)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de la Recherche Agronomique (INRA)-Université Paris Diderot - Paris 7 (UPD7)-Université Sorbonne Paris Cité (USPC)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de la Recherche Agronomique (INRA)
Subjects: Male, medicine.medical_specialty, Adolescent, Cross-sectional study, medicine.medical_treatment, [SDV.MHEP.UN]Life Sciences [q-bio]/Human health and pathology/Urology and Nephrology, 03 medical and health sciences, [SDV.MHEP.PED] Life Sciences [q-bio]/Human health and pathology/Pediatrics, 0302 clinical medicine, Quality of life, 030225 pediatrics, Internal medicine, Humans, Medicine, 030212 general & internal medicine, Child, [SDV.MHEP.PED]Life Sciences [q-bio]/Human health and pathology/Pediatrics, immunosuppression, nephrotic syndrome, business.industry, Immunosuppression, [SDV.IMM.IMM]Life Sciences [q-bio]/Immunology/Immunotherapy, General Medicine, medicine.disease, [SDV.MHEP.UN] Life Sciences [q-bio]/Human health and pathology/Urology and Nephrology, 3. Good health, Cross-Sectional Studies, quality of life, children and adolescents, Intravenous therapy, Pediatrics, Perinatology and Child Health, Population study, Female, Observational study, Rituximab, [SDV.IMM.IMM] Life Sciences [q-bio]/Immunology/Immunotherapy, business, Nephrotic syndrome, Immunosuppressive Agents, medicine.drug
Abstract: International audience; AIM: Severe forms of idiopathic nephrotic syndrome (INS) require immunosuppressive therapy: oral treatment or intravenous therapy (rituximab, RTX). The main objective was to describe quality of life (QOL) in these specific patients.METHODS: Cross-sectional, multicentre, observational study analysed QOL using a standardised questionnaire in children from 7 to 17 years, with a steroid-dependent or steroid-resistant INS in stable remission. The questionnaire consisted of 30 questions concerning physical and emotional well-being, self-esteem, family, friends, school and disease resulting in a global score of 0-100.RESULTS: A total of 110 patients with a mean age of 11.6 years from three French paediatric nephrology centres were included. A total of 71 patients had oral immunosuppressive treatment, 27 had RTX, and 12 had both. 13.6% of patients had a steroid-resistant INS. The mean number of relapses was 5.8. Seventy-eight patients answered the questionnaire. The global score in the whole study population was 74.7; 72.6 in the RTX group, 76.2 in the oral drugs group, (P = 0.49). The results of sub-dimension 'school' were statistically lower in RTX group (61.6 ± 19.5) compared with oral drugs group (71.4 ± 16; P = 0.02).CONCLUSION: Global QOL score was high in 'difficult-to-treat' patients with INS in stable remission on oral immunosuppressive or RTX treatment.
Published: 2019

7. Quantification of Myocardial Enhancement on Cine-MRI: Diagnostic Value in Cardiac Amyloidosis

Author: Alain Rahmouni, Clément Cholet, Jean-François Deux, F. Legou, Hicham Kobeiter, Thibaud Damy, Service d'imagerie médicale, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Henri Mondor-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Service de cardiologie, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-AP-HP - Hôpital Bichat - Claude Bernard [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Cité (UPCité), Institut Mondor de Recherche Biomédicale (IMRB), Institut National de la Santé et de la Recherche Médicale (INSERM)-IFR10-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), CHU Henri Mondor, Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université de Paris (UP), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-IFR10, Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP]
Subjects: Male, medicine.medical_specialty, Diagnostic information, [SDV]Life Sciences [q-bio], Contrast Media, Magnetic Resonance Imaging, Cine, Left ventricular hypertrophy, Sensitivity and Specificity, 030218 nuclear medicine & medical imaging, 03 medical and health sciences, 0302 clinical medicine, Predictive Value of Tests, Internal medicine, Humans, Medicine, Radiology, Nuclear Medicine and imaging, cardiovascular diseases, Aged, Retrospective Studies, business.industry, Amyloidosis, Reproducibility of Results, Heart, Middle Aged, Image Enhancement, medicine.disease, Cine mri, Cardiac amyloidosis, Cine imaging, 030220 oncology & carcinogenesis, Myocardial hypertrophy, cardiovascular system, Cardiology, Female, Cardiomyopathies, business, Cardiac magnetic resonance
Abstract: Rationale and Objectives Diagnosis of cardiac amyloidosis (CA) on cardiac magnetic resonance (CMR) can be challenging and quantitative indexes are relevant to further characterize the myocardium. We hypothesize that the relative myocardial enhancement measured from pre and post contrast cine imaging provides diagnostic information for CA in the setting of left ventricular hypertrophy (LVH). Materials and Methods Patients with LVH referred to our center and control subjects with normal CMR were retrospectively included. Percentage of myocardial enhancement (percentage ME) was obtained from pre and post contrast (5 minutes) cine sequences. Post contrast myocardial T1 and LGE extent were also recorded. Results Twenty-one patients with CA, 25 patients with non-amyloid left ventricular myocardial hypertrophy (CH) and 20 controls with normal CMR were analyzed. Percentage ME was significantly higher in CA patients (200% (174–238)) than in CH patients (122% (88–151); p = 0.0001) and control patients (104% (90–149); p = 0.0001). Percentage ME was significantly correlated with the LGE extent (Rho Spearman coefficient = 0.66; p = 0.0001) and with the post contrast myocardial T1 (Rho Spearman coefficient = −0.61; p = 0.0001). With a cutoff value of 152%, the sensitivity and specificity of percentage ME for detection of CA were 90% and 80%, respectively. Conclusion Percentage ME obtained from pre and post contrast cine imaging is correlated to LGE extent and myocardial T1 and may represent an additional diagnostic parameter to consider CA in patients with LVH.
Published: 2019

8. Impaired Activated/Memory Regulatory T Cell Clonal Expansion Instigates Diabetes in NOD Mice

Author: Pierre Barennes, Paul-Gydeon Ritvo, Hang P. Pham, Vanessa Mhanna, Valentin Quiniou, Encarnita Mariotti-Ferrandiz, Guillaume Churlaud, Bruno Gouritin, Faustine Brimaud, Gwladys Fourcade, Adrien Six, David Klatzmann, Immunologie - Immunopathologie - Immunothérapie [CHU Pitié Salpêtrière] (I3), CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Gestionnaire, Hal Sorbonne Université, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP]
Subjects: 0301 basic medicine, Male, Regulatory T cell, Endocrinology, Diabetes and Metabolism, [SDV]Life Sciences [q-bio], Receptors, Antigen, T-Cell, 030209 endocrinology & metabolism, Nod, Biology, T-Lymphocytes, Regulatory, 03 medical and health sciences, Mice, 0302 clinical medicine, Antigen, Mice, Inbred NOD, Internal Medicine, medicine, Animals, Receptor, NOD mice, Autoimmune disease, Effector, T-cell receptor, medicine.disease, [SDV] Life Sciences [q-bio], Mice, Inbred C57BL, 030104 developmental biology, medicine.anatomical_structure, Diabetes Mellitus, Type 1, Immunology, Interleukin-2, Female
Abstract: Regulatory T cell (Treg) insufficiency licenses the destruction of insulin-producing pancreatic b cells by auto-reactive effector T cells (Teffs), causing spontaneous autoimmune diabetes in non‑obese diabetic (NOD) mice. We investigated the contribution to diabetes of the TCR repertoires of naive regulatory T cells (nTregs), activated/memory Tregs (amTregs), and CD4+ Teffs from prediabetic NOD mice and normal C57BL/6 (B6) mice. NOD mice amTreg and Teff repertoire diversity was unexpectedly higher than that of B6 mice. This was due to the presence of highly expanded clonotypes in B6 amTregs and Teffs that were largely lost in their NOD counterparts. IL-2 administration to NOD mice restored such amTreg clonotype expansions and prevented diabetes development. In contrast, IL-2 administration only led to few or no clonotype expansions in nTregs and Teffs, respectively. Noteworthily, IL-2 expanded amTreg and nTreg clonotypes were markedly enriched in islet-antigen specific TCRs. Altogether, our results highlight the link between a reduced clonotype expansion within the activated Treg repertoire and the development of an autoimmune disease. They also indicate that the repertoire of amTregs is amenable to rejuvenation by IL-2.
Published: 2021

9. Efficacy and safety of steroid-sparing treatments in giant cell arteritis according to the glucocorticoids tapering regimen: A systematic review and meta-analysis

Author: Agnès Dechartres, David Saadoun, Florence Tubach, Patrice Cacoub, Anne-Laure Gerard, Youri Yordanov, Noémie Simon-Tillaux, Gestionnaire, Hal Sorbonne Université, Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU), Département de Biostatistique, Santé Publique et Information Médicale [CHU Pitié-Salpêtrière] (BIOSPIM ), CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Service d'Urgences Adultes [CHU Saint-Antoine], CHU Saint-Antoine [AP-HP], Immunologie - Immunopathologie - Immunothérapie [CHU Pitié Salpêtrière] (I3), CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Service de Département de médecine interne et immunologie clinique [CHU Pitié-Salpêtrière] (DMIIC), Centre National de Référence Maladies auto-immunes Systémiques Rares [CHU Pitié-Salpêtrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Service des Urgences [CHU Saint-Antoine], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Saint-Antoine [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Service de médecine interne et d'immunologie clinique [CHU Pitié-Salpêtrière], Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], and Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)
Subjects: medicine.medical_specialty, [SDV]Life Sciences [q-bio], medicine.medical_treatment, Giant Cell Arteritis, 030204 cardiovascular system & hematology, law.invention, 03 medical and health sciences, chemistry.chemical_compound, 0302 clinical medicine, Tocilizumab, Randomized controlled trial, law, Internal medicine, Internal Medicine, medicine, Humans, 030212 general & internal medicine, Prospective cohort study, Adverse effect, Glucocorticoids, business.industry, Hydroxychloroquine, 3. Good health, [SDV] Life Sciences [q-bio], Meta-analysis, Regimen, Methotrexate, chemistry, Systematic review, Drug Therapy, Combination, Steroids, Steroid-sparing treatment, business, Adjuvant, medicine.drug
Abstract: Objectives To assess the efficacy and safety of adjuvant therapies in newly diagnosed or relapsing giant cell arteritis (GCA) in terms of relapse rate at week 52 (primary outcome) and to assess the impact of GC tapering regimen on adjuvant effectiveness. Methods For this systematic review and meta-analysis, we searched PubMed, EMBASE, CENTRAL, trial registries, from inception to November 2020. We included all randomized controlled trials (RCTs) and controlled prospective studies evaluating adjuvant treatments in GCA, without date or language restriction. Two reviewers independently selected studies, extracted data and assessed risk of bias. Quality of evidence was summarised with GRADE. Results Of the 680 records identified, 16 studies were included (1,068 participants) evaluating various adjuvant therapies compared to GC only. No study compared adjuvants with each other. Risk of bias was high in 5/7 trials evaluating our primary outcome. Risk of relapse at week 52 was reduced for only the anti-IL6 and IL6-receptor drug class versus the control (RR=0.45, 95%CI 0.30–0.66, I2=38%), particularly tocilizumab (RR=0.38, 95%CI 0.23–0.63, I2=42%) with a moderate quality of evidence. We found no significant interaction according to GC tapering regimen. Our meta-analysis did not show a significant benefit for methotrexate. Except for dapsone, ciclosporine and hydroxychloroquine, other adjuvants did not seem to show increased risk of adverse events. Conclusions Tocilizumab seems to reduce the relapse rate in GCA at week 52 but the quality of evidence was moderate. No other molecule has shown efficacy. No significant interaction on relapse rate by GC tapering regimen was found. Study registration PROSPERO CRD42020172011.
Published: 2021

10. French recommendations for the management of Behçet’s disease

Author: Kumaran Deiva, A.C. Desbois, Maryam Piram, Stéphane Barete, B. Wechsler, David Saadoun, Caroline Galeotti, Bahram Bodaghi, Nicolas Noel, Tu-Anh Tran, Isabelle Koné-Paut, Gilles Kaplanski, Alfred Mahr, Julien Gaudric, Centre de Référence des Maladies Auto-Inflammatoires et des Amyloses [CH Versailles] (CeRéMAIA - Hôpital André Mignot), Centre Hospitalier de Versailles André Mignot (CHV), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Immunologie - Immunopathologie - Immunothérapie [CHU Pitié Salpêtrière] (I3), CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), Centre de référence des Maladies Rares en Ophtalmologie [CHU HEGP] (OPHTARA), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Européen Georges Pompidou [APHP] (HEGP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO)-Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO), Institut Hospitalo-Universitaire FOReSIGHT, Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts (CHNO)-Sorbonne Université (SU), AP-HP Hôpital Bicêtre (Le Kremlin-Bicêtre), Université Paris-Saclay, Service de Chirurgie cardiaque et thoracique [CHU Pitié-Salpêtrière], CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Sorbonne Université - Faculté de Médecine (SU FM), Sorbonne Université (SU), Hôpital de la Conception [CHU - APHM] (LA CONCEPTION), Brustzentrum Kantonsspital St. Gallen, Immunologie des Maladies Virales et Autoimmunes (IMVA - U1184), Université Paris-Sud - Paris 11 (UP11)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut des Maladies Emergentes et des Thérapies Innovantes (IMETI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Infectious Diseases Models for Innovative Therapies (IDMIT), CHU Sainte Justine [Montréal], Cellules Souches, Plasticité Cellulaire, Médecine Régénératrice et Immunothérapies (IRMB), Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Montpellier (UM), Centre Hospitalier Universitaire de Nîmes (CHU Nîmes), Gestionnaire, Hal Sorbonne Université, CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Université de Montpellier (UM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Institut Hospitalo-Universitaire FOReSIGHT (IHU FOReSIGHT), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP]
Subjects: Vasculitis, medicine.medical_specialty, [SDV]Life Sciences [q-bio], lcsh:Medicine, Disease, Behcet's disease, Oral cavity, Diagnosis, Differential, 03 medical and health sciences, Behçet’s disease, 0302 clinical medicine, Humans, Medicine, Genetic Predisposition to Disease, Pharmacology (medical), Recurrent thrombosis, Position Statement, Genetics (clinical), 030203 arthritis & rheumatology, Behçet's disease, business.industry, Behcet Syndrome, lcsh:R, General Medicine, Recommendation, medicine.disease, Dermatology, Human genetics, Therapeutic modalities, 3. Good health, Management, [SDV] Life Sciences [q-bio], 030221 ophthalmology & optometry, Differential diagnosis, business
Abstract: Behçet’s disease (BD) is a systemic variable vessel vasculitis that involves the skin, mucosa, joints, eyes, arteries, veins, nervous system and gastrointestinal system, presenting with remissions and exacerbations. It is a multifactorial disease, and several triggering factors including oral cavity infections and viruses may induce inflammatory attacks in genetically susceptible individuals. BD vasculitis involves different vessel types and sizes of the vascular tree with mixed-cellular perivascular infiltrates and is often complicated by recurrent thrombosis, particularly in the venous compartment. Several new therapeutic modalities with different mechanisms of action have been studied in patients with BD. A substantial amount of new data have been published on the management of BD, especially with biologics, over the last years. These important therapeutic advances in BD have led us to propose French recommendations for the management of Behçet’s disease [Protocole National de Diagnostic et de Soins de la maladie de Behçet (PNDS)]. These recommendations are divided into two parts: (1) the diagnostic process and initial assessment; (2) the therapeutic management. Thirty key points summarize the essence of the recommendations. We highlighted the main differential diagnosis of BD according to the type of clinical involvement; the role of genetics is also discussed, and we indicate the clinical presentations that must lead to the search for a genetic cause.
Published: 2021

11. SARS-CoV-2 vaccine and thrombosis: An Expert Consensus on Vaccine-induced Immune

Author: Elalamy, Ismail, Gerotziafas, Grigoris, Alamowitch, Sonia, Laroche, Jean-Pierre, Van Dreden, Patrick, Ageno, Walter, Beyer-Westendorf, Jan, Cohen, Alexander, Jiménez, David, Brenner, Benjamin, Middeldorp, Saskia, Cacoub, Patrice, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Centre de Recherche Saint-Antoine (CR Saint-Antoine), Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Service d'Hématologie biologique [CHU Tenon], CHU Tenon [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Service des Urgences Cérébro-Vasculaires [CHU Pitié-Salpétriêre], CHU Pitié-Salpêtrière [AP-HP], CHU Montpellier, Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Università dell’Insubria, University Hospital Carl Gustav Carus [Dresden, Germany], Technische Universität Dresden = Dresden University of Technology (TU Dresden), King's College Hospital (KCH), Instituto Ramon y Cajal de Investigacion Sanitaria [Madrid, Spain] (IRYCIS), Universidad de Alcalá - University of Alcalá (UAH), Technion - Israel Institute of Technology [Haifa], Radboud University Medical Center [Nijmegen], Service de médecine interne [CHU Pitié-Salpétrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Centre de Recherche Saint-Antoine (CRSA), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU), Service d'Urgences Cérébro-Vasculaires [CHU Pitié-Salpêtrière], Universitá degli Studi dell’Insubria = University of Insubria [Varese] (Uninsubria), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], HAL-SU, Gestionnaire, Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP]
Subjects: [SDV.IMM.VAC] Life Sciences [q-bio]/Immunology/Vaccinology, [SDV.IMM.VAC]Life Sciences [q-bio]/Immunology/Vaccinology
Abstract: International audience; Historically, the vaccination strategies developed in the second half of the 20th century have permitted to eradicate infectious diseases. From the onset of COVID-19 pandemic to March 2021, more than 141 million cases and 3 million deaths were documented worldwide with disruption of the economic and social activity, devastating material, physical and psychological consequences. Reports of unusual and severe thrombotic events, including cerebral and splanchnic venous thrombosis and other autoimmune adverse reactions such as immune thrombocytopenia or thrombotic microangiopathies (TMA) in connection with some of the SARS-CoV-2 vaccine have caused a great deal of concern within the population and the medical community. This report is intended to provide practical answers following an overview of our knowledge on these thrombotic events that are extremely rare but have serious consequences. Vaccine hesitancy threatens to reverse the progress made in controlling vaccine-preventable diseases. These adverse events must be put into perspective with an objective analysis of the facts and the issues of the vaccination strategy during this SARS-Cov-2 pandemic. Healthcare professionals remain the most pertinent advisors and influencers regarding vaccination decisions; they have to be supported in order to provide reliable and credible information on vaccines. We need to inform, reassure and support our patients when the prescription is made. Facing these challenges and these observations, a panel of experts express their insights and propose a tracking algorithm for vaccinated patients based on a10-point guideline for decision-making on what to do and not to do.
Published: 2021

12. Assessing the effect of genetic markers on drug immunogenicity from a mechanistic model-based approach

Author: Marc Pallardy, Aude Gleizes, Xavier Mariette, Julianne Duhazé, Florian Deisenhammer, Salima Hacein-Bey-Abina, Anna Fogdell-Hahn, Delphine Bachelet, Philippe Broët, Signe Hässler, Matthieu Allez, Miguel Caubet, CHU Sainte Justine [Montréal], Centre de recherche en épidémiologie et santé des populations (CESP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris-Sud - Paris 11 (UP11)-Hôpital Paul Brousse-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Immunologie - Immunopathologie - Immunothérapie [CHU Pitié Salpêtrière] (I3), CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Sorbonne Université (SU), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Département d'épidémiologie, biostatistique et recherche clinique, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-AP-HP - Hôpital Bichat - Claude Bernard [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Hopital Saint-Louis [AP-HP] (AP-HP), Innsbruck Medical University [Austria] (IMU), Karolinska Institutet [Stockholm], Inflammation, microbiome, immunosurveillance (MI2), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris-Saclay, Hôpital Bicêtre, Hôpital Bicêtre-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris-Sud - Paris 11 (UP11), Unité de Technologies Chimiques et Biologiques pour la Santé (UTCBS - UM 4 (UMR 8258 / U1022)), Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Service de rhumatologie, Université Paris-Sud - Paris 11 (UP11)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Bicêtre, Immunologie des maladies virales, auto-immunes, hématologiques et bactériennes (IMVA-HB), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris-Saclay, Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Paris-Sud - Paris 11 (UP11)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Paul Brousse-Institut National de la Santé et de la Recherche Médicale (INSERM), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), CHU Pitié-Salpêtrière [AP-HP], Innsbruck Medical University = Medizinische Universität Innsbruck (IMU), Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Institut de Chimie du CNRS (INC)-Université de Paris (UP)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM), Gestionnaire, Hal Sorbonne Université, Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP]
Subjects: Genetic Markers, Drug, Semi-parametric, Epidemiology, Computer science, media_common.quotation_subject, [SDV]Life Sciences [q-bio], Population, Health Informatics, Computational biology, 030226 pharmacology & pharmacy, 01 natural sciences, Antibodies, 010104 statistics & probability, 03 medical and health sciences, 0302 clinical medicine, Genetic, Test statistic, Humans, Computer Simulation, Two-part improper survival model, 0101 mathematics, education, Semi-continuous data, Survival analysis, Statistic, media_common, Drug immunogenicity, lcsh:R5-920, [SDV.GEN]Life Sciences [q-bio]/Genetics, education.field_of_study, [SDV.MHEP] Life Sciences [q-bio]/Human health and pathology, Immunogenicity, 3. Good health, Semiparametric model, [SDV] Life Sciences [q-bio], [STAT]Statistics [stat], Log-rank test, Pharmaceutical Preparations, [SDV.IMM]Life Sciences [q-bio]/Immunology, lcsh:Medicine (General), [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology, Research Article
Abstract: Background With the growth in use of biotherapic drugs in various medical fields, the occurrence of anti-drug antibodies represents nowadays a serious issue. This immune response against a drug can be due either to pre-existing antibodies or to the novel production of antibodies from B-cell clones by a fraction of the exposed subjects. Identifying genetic markers associated with the immunogenicity of biotherapeutic drugs may provide new opportunities for risk stratification before the introduction of the drug. However, real-world investigations should take into account that the population under study is a mixture of pre-immune, immune-reactive and immune-tolerant subjects. Method In this work, we propose a novel test for assessing the effect of genetic markers on drug immunogenicity taking into account that the population under study is a mixed one. This test statistic is derived from a novel two-part semiparametric improper survival model which relies on immunological mechanistic considerations. Results Simulation results show the good behavior of the proposed statistic as compared to a two-part logrank test. In a study on drug immunogenicity, our results highlighted findings that would have been discarded when considering classical tests. Conclusion We propose a novel test that can be used for analyzing drug immunogenicity and is easy to implement with standard softwares. This test is also applicable for situations where one wants to test the equality of improper survival distributions of semi-continuous outcomes between two or more independent groups.
Published: 2020

13. Emerging Molecular Targets for the Treatment of Refractory Sarcoidosis

Author: Gonçalo Boleto, Matheus Vieira, Anne Claire Desbois, David Saadoun, Patrice Cacoub, Service de Département de médecine interne et immunologie clinique [CHU Pitié-Salpêtrière] (DMIIC), CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Centre National de Référence Maladies auto-immunes Systémiques Rares [CHU Pitié-Salpêtrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Immunologie - Immunopathologie - Immunothérapie [CHU Pitié Salpêtrière] (I3), CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Service de médecine interne et d'immunologie clinique [CHU Pitié-Salpêtrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Gestionnaire, Hal Sorbonne Université, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP]
Subjects: Cyclophosphamide, Mini Review, [SDV]Life Sciences [q-bio], Azathioprine, 030207 dermatology & venereal diseases, 03 medical and health sciences, chemistry.chemical_compound, 0302 clinical medicine, Tocilizumab, medicine, sarcoidosis, Interleukin 6, granuloma, 030203 arthritis & rheumatology, lcsh:R5-920, therapy, biology, JAK inhibitors, business.industry, interleukin-6, Interleukin, General Medicine, medicine.disease, 3. Good health, [SDV] Life Sciences [q-bio], chemistry, Granuloma, Immunology, biology.protein, Medicine, Methotrexate, Sarcoidosis, business, lcsh:Medicine (General), interleukin-1, medicine.drug
Abstract: International audience; Sarcoidosis is a multisystem granulomatous disease of unknown origin that has variable clinical course and can affect nearly any organ. It has a chronic course in about 25% of patients. Corticosteroids (CS) are the cornerstone of therapy but their long-term use is associated with cumulative toxicity. Commonly used CS-sparing agents include methotrexate, cyclophosphamide, azathioprine, and mycophenolate mofetil. Twenty to forty percentage of sarcoidosis patients are refractory to these therapies or develop severe adverse events. Therefore, additional and targeted CS-sparing agents are needed for chronic sarcoidosis. Macrophage activation, interferon response, and formation of the granuloma are mainly mediated by T helper-1 responses. Different pro-inflammatory cytokines such as interleukin (IL)-8, IL-12, IL-6, and tumor necrosis factor-alpha (TNF-α) have been shown to be highly expressed in sarcoidosis-affected tissues. As a result of increased production of these cytokines, Janus kinase-signal transducer and activator of transcription (JAK-STAT) signaling is constitutively active in sarcoidosis. Several studies of biological agents that target TNF-α have reported their efficacy and appear today as a second line option in refractory sarcoidosis. Some case series report a positive effect of tocilizumab an anti-IL-6 monoclonal antibody in this setting. More recently, JAK inhibition appears as a new promising strategy. This review highlights key advances on the management of chronic refractory sarcoidosis. Novel therapeutic strategies and treatment agents to manage the disease are described.
Published: 2020

14. Extracorporeal membrane oxygenation for severe acute respiratory distress syndrome associated with COVID-19: a retrospective cohort study

Author: Alexandra Beurton, Abdelmalek Abdelkrim, Nicolas Bréchot, Alexandre Elabbadi, Juliette Chommeloux, Martin De Sarcus, Thomas Urbina, Elodie Baron, Thibaut Schoell, Paris Meng, Charlotte Du Fayet De La Tour, Sofica Marin, Victoria Lepere, Elise Morawiec, Eric Maury, Bertrand Guidet, Pierre Romain Delmotte, Enora Berti, Pierre Bay, Alain Combes, Hafid Ait Oufella, Muriel Fartoukh, Jean Luc Baudel, Samia Abbas, David Levy, Matthieu Turpin, David Hajage, Cossimo D'Alessandro, Pascal Leprince, Corinne Vezinet, Charles Edouard Luyt, Robin Deleris, Martin Dres, Jean Michel Constantin, Alexandre Demoule, Marc Pineton de Chambrun, Mona Assefi, Guillaume Hékimian, Cyrielle Desnos, Pierre Demondion, Guillaume Voiriot, Bao Long Nguyen, Arthur James, Harold Bonvallot, Safaa Nemlaghi, Nathalie Nardonne, Julien Mayaux, Vincent Bonny, Guillaume Lebreton, Cyril Quemeneur, Sara Virolle, Emmanuelle Guerin, Matthieu Schmidt, Aude Gibelin, Julien Le Marec, Charles Juvin, Guillaume Savary, Jean Remi Lavillegrand, Antoine Monsel, Jeremy Arzoine, Unité de Recherche sur les Maladies Cardiovasculaires, du Métabolisme et de la Nutrition = Institute of cardiometabolism and nutrition (ICAN), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Institut de cardiologie [CHU Pitié-Salpêtrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], Service de Réanimation Médicale [CHU Pitié-Salpétrière], CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Service de Chirurgie cardiaque et thoracique [CHU Pitié-Salpêtrière], Service d'Anesthésie réanimation [CHU Pitié-Salpêtrière], Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Immunologie - Immunopathologie - Immunothérapie [CHU Pitié Salpêtrière] (I3), CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Service de Réanimation et USC Médico-Chirurgicale [CHU Tenon], CHU Tenon [AP-HP], Institut Mondor de Recherche Biomédicale (IMRB), Institut National de la Santé et de la Recherche Médicale (INSERM)-IFR10-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Service de Pneumologie, Médecine Intensive et Réanimation - R3S [CHU Pitié-Salpêtrière] (SPMIR-R3S), Sorbonne Université - Faculté de Médecine (SU FM), Sorbonne Université (SU), Service de Pneumologie et Réanimation Médicale [CHU Pitié-Salpêtrière] (Département ' R3S '), Neurophysiologie Respiratoire Expérimentale et Clinique, Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU), Service de Réanimation Médicale [CHU Saint-Antoine], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Service de Pneumologie - R3S [CHU Pitié-Salpêtrière] (SPMIR-R3S), Unité de Recherche sur les Maladies Cardiovasculaires, du Métabolisme et de la Nutrition = Research Unit on Cardiovascular and Metabolic Diseases [IHU ICAN], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Institut de Cardiométabolisme et Nutrition = Institute of Cardiometabolism and Nutrition [CHU Pitié Salpêtrière] (IHU ICAN), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Service de Réanimation et USC Médico-Chirurgicale = Médecine intensive réanimation [CHU Tenon], Service de Médecine Intensive et Réanimation - R3S [CHU Pitié-Salpêtrière], and Neurophysiologie Respiratoire Expérimentale et Clinique (UMRS 1158)
Subjects: Adult, Male, Pulmonary and Respiratory Medicine, medicine.medical_specialty, ARDS, medicine.medical_treatment, [SDV]Life Sciences [q-bio], Pneumonia, Viral, Context (language use), Betacoronavirus, 03 medical and health sciences, Extracorporeal Membrane Oxygenation, 0302 clinical medicine, Intensive care, medicine, Extracorporeal membrane oxygenation, Humans, 030212 general & internal medicine, Pandemics, Survival rate, Retrospective Studies, Respiratory Distress Syndrome, SARS-CoV-2, Proportional hazards model, business.industry, COVID-19, Retrospective cohort study, Middle Aged, medicine.disease, Survival Rate, Intensive Care Units, surgical procedures, operative, 030228 respiratory system, Respiratory failure, Emergency medicine, Female, France, Coronavirus Infections, business
Abstract: Summary Background Patients with COVID-19 who develop severe acute respiratory distress syndrome (ARDS) can have symptoms that rapidly evolve to profound hypoxaemia and death. The efficacy of extracorporeal membrane oxygenation (ECMO) for patients with severe ARDS in the context of COVID-19 is unclear. We aimed to establish the clinical characteristics and outcomes of patients with respiratory failure and COVID-19 treated with ECMO. Methods This retrospective cohort study was done in the Paris–Sorbonne University Hospital Network, comprising five intensive care units (ICUs) and included patients who received ECMO for COVID-19 associated ARDS. Patient demographics and daily pre-ECMO and on-ECMO data and outcomes were collected. Possible outcomes over time were categorised into four different states (states 1–4): on ECMO, in the ICU and weaned off ECMO, alive and out of ICU, or death. Daily probabilities of occupation in each state and of transitions between these states until day 90 post-ECMO onset were estimated with use of a multi-state Cox model stratified for each possible transition. Follow-up was right-censored on July 10, 2020. Findings From March 8 to May 2, 2020, 492 patients with COVID-19 were treated in our ICUs. Complete day-60 follow-up was available for 83 patients (median age 49 [IQR 41–56] years and 61 [73%] men) who received ECMO. Pre-ECMO, 78 (94%) patients had been prone-positioned; their median driving pressure was 18 (IQR 16–21) cm H2O and PaO2/FiO2 was 60 (54–68) mm Hg. At 60 days post-ECMO initiation, the estimated probabilities of occupation in each state were 6% (95% CI 3–14) for state 1, 18% (11–28) for state 2, 45% (35–56) for state 3, and 31% (22–42) for state 4. 35 (42%) patients had major bleeding and four (5%) had a haemorrhagic stroke. 30 patients died. Interpretation The estimated 60-day survival of ECMO-rescued patients with COVID-19 was similar to that of studies published in the past 2 years on ECMO for severe ARDS. If another COVID-19 outbreak occurs, ECMO should be considered for patients developing refractory respiratory failure despite optimised care. Funding None.
Published: 2020

15. Intrathymic adeno-associated virus gene transfer rapidly restores thymic function and long-term persistence of gene-corrected T cells

Author: Daniela Cesana, Pierre Barennes, Magali Irla, Arnauld Sergé, Eugenio Montini, Andrea Calabria, Mickaël Guilbaud, Valérie S. Zimmermann, Naomi Taylor, Indu Raman, Alice Machado, Marie Pouzolles, David Klatzmann, Oumeya Adjali, Quan Zhen Li, Fabrizio Benedicenti, Sarah Gailhac, Institut de Génétique Moléculaire de Montpellier (IGMM), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Thérapie Génique Translationnelle des Maladies Génétiques (Inserm UMR 1089), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Nantes - UFR de Médecine et des Techniques Médicales (UFR MEDECINE), Université de Nantes (UN)-Université de Nantes (UN), Centre d'Immunologie de Marseille - Luminy (CIML), Aix Marseille Université (AMU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Immunologie - Immunopathologie - Immunothérapie [CHU Pitié Salpêtrière] (I3), CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM), IRCCS San Raffaele Scientific Institute [Milan, Italie], Institut Paoli-Calmettes, Fédération nationale des Centres de lutte contre le Cancer (FNCLCC), University of Texas Southwestern Medical Center [Dallas], Centre d’Investigation Clinique intégré en Biothérapies et immunologie [AP-HP pitié-salpêtrière, Paris] (CIC-BTi), CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], National Institutes of Health [Bethesda] (NIH), M.P. was supported by a PhD fellowship from the LABEX EpiGenMed and the FRM. M.I. and O.A. are supported by INSERM, N.T. was supported by INSERM and the National Institutes of Health, and V.S.Z. is supported by CNRS. This work was funded by the AFM, grant R01AI059349 from the National Institute of Allergy and Infectious Diseases, and the ANR, ARC, FRM, INCA, and ERC-Advanced TRiPoD (#322856 to D.K.)., Zimmermann, Valerie, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), Centre de Recherche en Cancérologie de Marseille (CRCM), Aix Marseille Université (AMU)-Institut Paoli-Calmettes, Fédération nationale des Centres de lutte contre le Cancer (FNCLCC)-Fédération nationale des Centres de lutte contre le Cancer (FNCLCC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Centre d'investigation clinique Biothérapie [CHU Pitié-Salpêtrière] (CIC-BTi), Centre d'investigation clinique pluridisciplinaire [CHU Pitié Salpêtrière] (CIC-P 1421), National Cancer Institute [Bethesda] (NCI-NIH), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU), CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Université de Nantes (UN)-Institut National de la Santé et de la Recherche Médicale (INSERM), Immunologie - Immunopathologie - Immunothérapie (I3), Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), IRCSS San Raffaele Scientific Institute [Milan, Italie], CHU Pitié-Salpêtrière [APHP], and CHU Pitié-Salpêtrière [APHP]-Sorbonne Université (SU)
Subjects: 0301 basic medicine, ZAP-70, T-cell reconstitution, Genetic enhancement, [SDV]Life Sciences [q-bio], M.I. and O.A. provided important critical review Severe combined immunodeficiency, medicine.disease_cause, D.C, Mice, 0302 clinical medicine, Transduction, Genetic, # equal contribution Author Contributions M.P, A.S. and E.M. designed and performed the integration analyses, thymus, humoral immunity, Immunology and Allergy, and I.R. and P-Z.L. performed the autoantibody microaaray analyses. M.P, Adeno-associated virus, Mice, Knockout, Thymocytes, ZAP-70 Protein-Tyrosine Kinase, T cell reconstitution, A.M, FOXP3, Hematopoietic stem cell, intrathymic gene transfer, Dependovirus, Autoimmune regulator, performed and analyzed the experiments. M.I. and A.S. performed and analyzed histological analyses, TCR repertoire analysis was performed by P.B. and D.K, 3. Good health, F.B, [SDV] Life Sciences [q-bio], Thymocyte, medicine.anatomical_structure, Severe combined immunodeficiency, 030220 oncology & carcinogenesis, S.G. and V.S.Z. designed, zeta-associated protein of 70kDa, Immunology, Genetic Vectors, Biology, Article, 03 medical and health sciences, N.T. and V.S.Z. conceived the study. M.P, Gene therapy, medicine, Animals, Progenitor cell, O.A, M.G, N.T. and V.S.Z. wrote the manuscript and A.M, Immunologic Deficiency Syndromes, Genetic Therapy, medulla formation, medicine.disease, 030104 developmental biology, Cancer research
Abstract: Referred to by : Gregori Silvia, Aiuti Alessandro - Intrathymic delivery a new route for adenoviral-associated vector gene therapy - Journal of Allergy and Clinical Immunology, Volume 145, Issue 2, February 2020, Pages 499-501; International audience; BACKGROUND: Patients with T-cell immunodeficiencies are generally treated with allogeneic hematopoietic stem cell transplantation, but alternatives are needed for patients without matched donors. An innovative intrathymic gene therapy approach that directly targets the thymus might improve outcomes.OBJECTIVE: We sought to determine the efficacy of intrathymic adeno-associated virus (AAV) serotypes to transduce thymocyte subsets and correct the T-cell immunodeficiency in a zeta-associated protein of 70 kDa (ZAP-70)-deficient murine model.METHODS: AAV serotypes were injected intrathymically into wild-type mice, and gene transfer efficiency was monitored. ZAP-70-/- mice were intrathymically injected with an AAV8 vector harboring the ZAP70 gene. Thymus structure, immunophenotyping, T-cell receptor clonotypes, T-cell function, immune responses to transgenes and autoantibodies, vector copy number, and integration were evaluated.RESULTS: AAV8, AAV9, and AAV10 serotypes all transduced thymocyte subsets after in situ gene transfer, with transduction of up to 5% of cells. Intrathymic injection of an AAV8-ZAP-70 vector into ZAP-70-/- mice resulted in a rapid thymocyte differentiation associated with the development of a thymic medulla. Strikingly, medullary thymic epithelial cells expressing the autoimmune regulator were detected within 10 days of gene transfer, correlating with the presence of functional effector and regulatory T-cell subsets with diverse T-cell receptor clonotypes in the periphery. Although thymocyte reconstitution was transient, gene-corrected peripheral T cells harboring approximately 1 AAV genome per cell persisted for more than 40 weeks, and AAV vector integration was detected.CONCLUSIONS: Intrathymic AAV-transduced progenitors promote a rapid restoration of the thymic architecture, with a single wave of thymopoiesis generating long-term peripheral T-cell function.
Published: 2020

16. Routine monitoring of isometric knee extension strength in patients with muscle impairments using a new portable device: cross-validation against a standard isokinetic dynamometer

Author: Jean-Yves Hogrel, Olivier Benveniste, Damien Bachasson, Institut de Myologie, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Association française contre les myopathies (AFM-Téléthon)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Sorbonne Université - Faculté de Médecine (SU FM), Sorbonne Université (SU), Centre de Recherche en Myologie, Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Service de médecine interne et d'immunologie clinique [CHU Pitié-Salpêtrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Centre de recherche en Myologie – U974 SU-INSERM, Gestionnaire, Hal Sorbonne Université, Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Service de Département de médecine interne et immunologie clinique [CHU Pitié-Salpêtrière] (DMIIC), Centre National de la Recherche Scientifique (CNRS)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Association française contre les myopathies (AFM-Téléthon)-Sorbonne Université (SU), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP]
Subjects: Muscle Strength Dynamometer, Weakness, Knee Joint, [SDV.MHEP.PHY] Life Sciences [q-bio]/Human health and pathology/Tissues and Organs [q-bio.TO], Physiology, Biomedical Engineering, Biophysics, Isometric exercise, Cross-validation, Myositis, Inclusion Body, 03 medical and health sciences, outcome measures, Wearable Electronic Devices, 0302 clinical medicine, [SPI.MECA.BIOM] Engineering Sciences [physics]/Mechanics [physics.med-ph]/Biomechanics [physics.med-ph], Physiology (medical), Isometric Contraction, [SDV.MHEP.PHY]Life Sciences [q-bio]/Human health and pathology/Tissues and Organs [q-bio.TO], Medicine, Humans, Muscle Strength, device, muscle weakness, Aged, Reproducibility, Dynamometer, business.industry, [SPI.MECA.BIOM]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Biomechanics [physics.med-ph], 030229 sport sciences, Gold standard (test), Middle Aged, Standard error, medicine.symptom, business, myositis, 030217 neurology & neurosurgery, Biomedical engineering
Abstract: International audience; OBJECTIVE: Muscle strength is a critical clinical hallmark in both health and disease. The current study introduces a novel portable device prototype (MyoQuad) for assessing and monitoring maximal voluntary isometric knee extension torque (MVIT).APPROACH: Fifty-six patients with inclusion body myositis were studied. Knee extension weakness is a key feature in this inflammatory muscle disease. Cross-validation with an isokinetic dynamometer (Biodex System 3 Pro) was performed. Between-day reproducibility and ability to monitor changes in muscle strength over time compared to the gold standard method as a reference, were also investigated.MAIN RESULTS: The measurement was feasible even in the weakest patients. Agreement between methods was excellent (standard error of measurement (SEM) was 3.8 Nm and intra-class correlation coefficient (ICC) was 0.973). Least significant difference (LSD) was 4.9 and 5.3 Nm for the MyoQuad and the Biodex, respectively Measurements using the MyoQuad exhibited excellent between-day reproducibility (SEM was 2.4 Nm and ICC was 0.989 versus 2.6 Nm and 0.988 using the Biodex). Changes in MVIT at 6 and 12 months were similar between methods (timepoint × method interaction was not significant; all p > 0.19); strength changes classified according to LSD at 6 and 12 months were consistent between methods (>70% consistent classification)).SIGNIFICANCE: The measurement of MVIT using the MyoQuad offers a cost-effective, portable and immediate alternative for the routine measurement of maximal voluntary isometric strength of the quadriceps. The MyoQuad offers a comfort and stability that cannot be provided by standard hand-held dynamometers. These results support quantitative muscle strength assessment using fixed yet flexible dynamometry within clinical routine and multicenter trials.
Published: 2020

17. Tocilizumab in treatment-naïve patients with Takayasu arteritis: TOCITAKA French prospective multicenter open-labeled trial

Author: Jean Pierre Bertola, Léa Savey, Juliette Delforge, David Saadoun, Patrick Jego, Olivier Fain, Matthieu Vautier, Pauline Lhorte, Nicole Ferreira-Maldent, Patrice Cacoub, Arsène Mekinian, Jérôme Connault, Jacques-Eric Gottenberg, Nicolas Limal, Bertrand Lioger, Zohra Talib, Eric Vicaut, Sara Thietart, Isabelle Quiere, Alexandre Bleibtreu, Antoinette Perlat, Gestionnaire, Hal Sorbonne Université, Service de médecine interne [CHU Saint-Antoine], CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Service de rhumatologie [CHU Saint-Antoine], Service de Département de médecine interne et immunologie clinique [CHU Pitié-Salpêtrière] (DMIIC), CHU Pitié-Salpêtrière [AP-HP], Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Immunologie - Immunopathologie - Immunothérapie [CHU Pitié Salpêtrière] (I3), CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), Centre National de Référence Maladies auto-immunes Systémiques Rares [CHU Pitié-Salpêtrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Hôpital Lariboisière-Fernand-Widal [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), CHU Trousseau [Tours], Centre Hospitalier Régional Universitaire de Tours (CHRU Tours), CHU Pontchaillou [Rennes], Hôpital Jean Verdier [AP-HP], CHU Henri Mondor, Centre hospitalier universitaire de Nantes (CHU Nantes), Immuno-Rhumatologie Moléculaire, Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM), Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg (UNISTRA), Les Hôpitaux Universitaires de Strasbourg (HUS), CHU Montpellier, Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Service de médecine interne et d'immunologie clinique [CHU Pitié-Salpêtrière], CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP]
Subjects: Adult, musculoskeletal diseases, medicine.medical_specialty, lcsh:Diseases of the musculoskeletal system, [SDV]Life Sciences [q-bio], Takayasu arteritis, 030204 cardiovascular system & hematology, Antibodies, Monoclonal, Humanized, Gastroenterology, Therapy naive, 03 medical and health sciences, chemistry.chemical_compound, 0302 clinical medicine, Tocilizumab, Maintenance therapy, Internal medicine, medicine, Clinical endpoint, Humans, Prospective Studies, skin and connective tissue diseases, 030203 arthritis & rheumatology, business.industry, Rheumatology, 3. Good health, Discontinuation, [SDV] Life Sciences [q-bio], Treatment Outcome, chemistry, Orthopedic surgery, Female, lcsh:RC925-935, business, Vasculitis treatment, Research Article
Abstract: Objectives To assess long-term efficacy of tocilizumab in treatment-naive patients with Takayasu arteritis (TAK). Methods Prospective open-labeled trial in naïve patients with TAK who received steroids at the dose of 0.7 mg/kg/day and 7 infusions of 8 mg/kg/month of tocilizumab. The primary endpoint was the number of patients who discontinued steroids after 7 infusions of tocilizumab. Secondary endpoints included disease activity and the number of relapses during 18-month follow-up. Results Thirteen patients with TAK were included, with a median age of 32 years [19–45] and 12 (92%) females. Six (54%) patients met the primary end-point. A significant decrease of disease activity was observed after 6 months of tocilizumab therapy: decrease of median NIH scale (3 [3, 4] at baseline, versus 1 [0–2] after 6 months; p p = 0.002), and ITAS-A score (7 [4–10] versus 4 [1–15]; p = 0.0001)]. During the 12-month follow-up after tocilizumab discontinuation, a relapse occurred among 5 patients (45%) out of 11 in which achieved remission after 6 months of tocilizumab. Conclusion Tocilizumab seems an effective steroid sparing therapy in TAK, but maintenance therapy is necessary. Trial registration ClinicalTrials.gov NCT02101333. Registered on 02 April 2014.
Published: 2020

18. Immunomodulatory role of Interleukin-33 in large vessel vasculitis

Author: Aurélie S. Leroyer, Jean-Marie Launay, Marlène Garrido, Gilles Kaplanski, A.C. Desbois, Philippe Cluzel, Michel Arock, Anna Maciejewski-Duval, Cloé Comarmond, Stéphane Barete, Michelle Rosenzwajg, David Klatzmann, Ulrich Blank, Fabien Koskas, Patrice Cacoub, Edwige Tellier, Pierre Fouret, David Saadoun, Patrick Bruneval, Mohamed Jarraya, Immunologie - Immunopathologie - Immunothérapie [CHU Pitié Salpêtrière] (I3), CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Service de Département de médecine interne et immunologie clinique [CHU Pitié-Salpêtrière] (DMIIC), CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Vascular research center of Marseille (VRCM), Aix Marseille Université (AMU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre recherche en CardioVasculaire et Nutrition = Center for CardioVascular and Nutrition research (C2VN), Aix Marseille Université (AMU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Service d'Hématologie Biologique [CHU Pitié-Salpêtrière], Hôpital Européen Georges Pompidou [APHP] (HEGP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO), Marqueurs cardiovasculaires en situation de stress (MASCOT (UMR_S_942 / U942)), Institut National de la Santé et de la Recherche Médicale (INSERM)-Groupe Hospitalier Saint Louis - Lariboisière - Fernand Widal [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Université Sorbonne Paris Nord, Service d'Anatomie et cytologie pathologiques = Service de Pathologie [CHU Pitié-Salpêtrière] (ACP), Centre de recherche sur l'Inflammation (CRI (UMR_S_1149 / ERL_8252 / U1149)), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Service de médecine interne [CHU Pitié-Salpétrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], Hopital Saint-Louis [AP-HP] (AP-HP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Service de Radiologie cardiovasculaire et interventionnelle [CHU Pitié-Salpêtrière], Service de Chirurgie cardiaque et thoracique [CHU Pitié-Salpêtrière], Hôpital de la Conception [CHU - APHM] (LA CONCEPTION), Gestionnaire, Hal Sorbonne Université, Centre d'investigation clinique Biothérapie [CHU Pitié-Salpêtrière] (CIC-BTi), Centre d'investigation clinique pluridisciplinaire [CHU Pitié Salpêtrière] (CIC-P 1421), École normale supérieure - Cachan (ENS Cachan), Faculte de Medecine Xavier Bichat, Université Paris Diderot - Paris 7 (UPD7), Leroyer, Aurelie, Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Institut National de la Santé et de la Recherche Médicale (INSERM)-Aix Marseille Université (AMU), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-Université Sorbonne Paris Nord, Service d'Anatomie et cytologie pathologiques [CHU Pitié-Salpêtrière] (ACP), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Service de radiologie cardiovasculaire et interventionnelle [CHU Pitié-Salpêtrière], Centre d’Investigation Clinique intégré en Biothérapies et immunologie [AP-HP pitié-salpêtrière, Paris] (CIC-BTi), CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Service de médecine interne et d'immunologie clinique [CHU Pitié-Salpêtrière], DIGNAT-GEORGE, Françoise, and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP]
Subjects: Male, 0301 basic medicine, T cell, [SDV]Life Sciences [q-bio], Giant Cell Arteritis, lcsh:Medicine, Inflammation, [SDV.IMM.II]Life Sciences [q-bio]/Immunology/Innate immunity, Article, Flow cytometry, 03 medical and health sciences, Th2 Cells, 0302 clinical medicine, Large vessel vasculitis, medicine, Humans, Mast Cells, lcsh:Science, Receptor, [SDV.IMM.II] Life Sciences [q-bio]/Immunology/Innate immunity, ComputingMilieux_MISCELLANEOUS, Aged, Aged, 80 and over, 030203 arthritis & rheumatology, Multidisciplinary, medicine.diagnostic_test, business.industry, Interleukins, lcsh:R, Interleukin-33, Acquired immune system, medicine.disease, Interleukin-1 Receptor-Like 1 Protein, 3. Good health, Interleukin 33, [SDV] Life Sciences [q-bio], 030104 developmental biology, medicine.anatomical_structure, [SDV.IMM.IA]Life Sciences [q-bio]/Immunology/Adaptive immunology, [SDV.IMM.IA] Life Sciences [q-bio]/Immunology/Adaptive immunology, Immunology, lcsh:Q, Female, medicine.symptom, business, Vasculitis, Cell signalling
Abstract: The mechanisms regulating inflammation in large vessels vasculitis (LVV) are poorly understood. Interleukin 33 (IL-33) has been shown to license innate and adaptive immunity by enhancing Th2 cytokines production. We aimed to examine the role of IL-33 in the immunomodulation of T cell activation in LVV. T cell homeostasis and cytokines production were determined in peripheral blood from 52 patients with giant cell arteritis (GCA) and 50 healthy donors (HD), using Luminex assay, flow cytometry, quantitative RT-PCR and by immunofluorescence analysis in inflammatory aorta lesions. We found increased level of IL-33 and its receptor ST2/IL-1R4 in the serum of patient with LVV. Endothelial cells were the main source of IL-33, whereas Th2 cells, Tregs and mast cells (MC) express ST2 in LVV vessels. IL-33 had a direct immunomodulatory impact by increasing Th2 and Tregs. IL-33 and MC further enhanced Th2 and regulatory responses by inducing a 6.1 fold increased proportion of Tregs (p = 0.008). Stimulation of MC by IL-33 increased indoleamine 2 3-dioxygenase (IDO) activity and IL-2 secretion. IL-33 mRNA expression was significantly correlated with the expression of IL-10 and TGF-β within aorta inflammatory lesions. To conclude, our findings suggest that IL-33 may exert a critical immunoregulatory role in promoting Tregs and Th2 cells in LVV.
Published: 2020

19. Regulatory T cells in the treatment of disease

Author: Amir Sharabi, George C. Tsokos, Ying Ding, Thomas R. Malek, Maria Tsokos, David Klatzmann, Gestionnaire, Hal Sorbonne Université, Beth Israel Deaconess Medical Center [Boston] (BIDMC), Harvard Medical School [Boston] (HMS), Sackler Faculty of Medicine, Tel Aviv University (TAU), University of Miami [Coral Gables], Immunologie - Immunopathologie - Immunothérapie [CHU Pitié Salpêtrière] (I3), CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Tel Aviv University [Tel Aviv], Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Department of Microbiology and Immunology [Miami, FL, USA], University of Miami Leonard M. Miller School of Medicine (UMMSM)-The Diabetes Research Institute, Service de biothérapies [CHU Pitié-Salpétrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université, Immunologie - Immunopathologie - Immunothérapie (I3), Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP]
Subjects: 0301 basic medicine, Angiogenesis, Antineoplastic Agents, Autoimmunity, chemical and pharmacologic phenomena, Inflammation, Disease, medicine.disease_cause, T-Lymphocytes, Regulatory, Autoimmune Diseases, 03 medical and health sciences, 0302 clinical medicine, Immune system, Neoplasms, Drug Discovery, Animals, Humans, Medicine, Pharmacology, business.industry, Cancer, hemic and immune systems, [SDV.IMM.IMM]Life Sciences [q-bio]/Immunology/Immunotherapy, General Medicine, medicine.disease, 3. Good health, Transplantation, 030104 developmental biology, Immunology, [SDV.IMM]Life Sciences [q-bio]/Immunology, [SDV.IMM.IMM] Life Sciences [q-bio]/Immunology/Immunotherapy, medicine.symptom, business, Immunosuppressive Agents, Ex vivo, 030215 immunology
Abstract: International audience; Regulatory T (Treg) cells suppress inflammation and regulate immune system activity. In patients with systemic or organ-specific autoimmune diseases or those receiving transplanted organs, Treg cells are compromised. Approaches to strengthen Treg cell function, either by expanding them ex vivo and reinfusing them or by increasing the number or capacity of existing Treg cells, have entered clinical trials. Unlike the situation in autoimmunity, in patients with cancer, Treg cells limit the antitumour immune response and promote angiogenesis and tumour growth. Their immunosuppressive function may, in part, explain the failure of many immunotherapies in cancer. Strategies to reduce the function and/or number of Treg cells specifically in tumour sites are being investigated to promote antitumour immunity and regression. Here, we describe the current progress in modulating Treg cells in autoimmune disorders, transplantation and cancer.
Published: 2018

20. Deep characterization of the anti-drug antibodies developed in Fabry disease patients, a prospective analysis from the French multicenter cohort FFABRY

Author: Mauhin, Wladimir, Lidove, Olivier, Amelin, Damien, Lamari, Foudil, Caillaud, Catherine, Mingozzi, Federico, Dzangué-Tchoupou, Gaëlle, Arouche-Delaperche, Louiza, Douillard, Claire, Dussol, Bertrand, Leguy-Seguin, Vanessa, D’Halluin, Pauline, Noel, Esther, Zenone, Thierry, Matignon, Marie, Maillot, François, Ly, Kim-Heang, Besson, Gérard, Willems, Marjolaine, Labombarda, Fabien, Masseau, Agathe, Lavigne, Christian, Froissart, Roseline, Lacombe, Didier, Ziza, Jean Marc, Hachulla, Eric, Benveniste, Olivier, Institut de Myologie, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Association française contre les myopathies (AFM-Téléthon)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Centre de recherche en Myologie – U974 SU-INSERM, Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU), CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Groupe Hospitalier Diaconesses Croix Saint-Simon, Service de Biochimie Métabolique [CHU Pitié-Salpêtrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Service de biochimie métabolique [CHU Necker], CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Institut Necker Enfants-Malades (INEM - UM 111 (UMR 8253 / U1151)), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Hôpital Jeanne de Flandres, Université de Lille, Droit et Santé-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Aix Marseille Université (AMU), Centre d'Investigation Clinique [Hôpital de la Conception - APHM] (CIC), Aix Marseille Université (AMU)-Assistance Publique - Hôpitaux de Marseille (APHM)-Institut Paoli-Calmettes, Fédération nationale des Centres de lutte contre le Cancer (FNCLCC)-Fédération nationale des Centres de lutte contre le Cancer (FNCLCC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Hôpital de la Conception [CHU - APHM] (LA CONCEPTION), Service de médecine interne et immunologie clinique (SOC 1) [CHU de Dijon], Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), CHU Trousseau [Tours], Centre Hospitalier Régional Universitaire de Tours (CHRU Tours), CHU Strasbourg, Centre hospitalier de Valence, Groupe Henri Mondor-Albert Chenevier, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Henri Mondor-Hôpital Albert Chenevier, Institut Mondor de Recherche Biomédicale (IMRB), Institut National de la Santé et de la Recherche Médicale (INSERM)-IFR10-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Centre Hospitalier Universitaire [Grenoble] (CHU), CHU Montpellier, Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), CHU Caen, Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN), Service de médecine interne [Nantes], Université de Nantes (UN)-Hôtel-Dieu-Centre hospitalier universitaire de Nantes (CHU Nantes), Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM), Hospices Civils de Lyon (HCL), Service de génétique médicale, Université de Bordeaux (UB)-CHU Bordeaux [Bordeaux]-Groupe hospitalier Pellegrin, CHU Bordeaux [Bordeaux], Hôpital Claude Huriez [Lille], CHU Lille, Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Centre de Recherche en Myologie, CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Association française contre les myopathies (AFM-Téléthon)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Centre de recherche en myologie, Association française contre les myopathies (AFM-Téléthon)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), CHU Pitié-Salpêtrière [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-CHU Pitié-Salpêtrière [APHP], CHU Necker - Enfants Malades [AP-HP]-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP), Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut Paoli-Calmettes, Fédération nationale des Centres de lutte contre le Cancer (FNCLCC)-Fédération nationale des Centres de lutte contre le Cancer (FNCLCC)-Assistance Publique - Hôpitaux de Marseille (APHM)-Aix Marseille Université (AMU)-Hôpital de la Conception [CHU - APHM] (LA CONCEPTION ), Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Hôpital Henri Mondor-Hôpital Albert Chenevier, Hôpital Claude Huriez, CHU Pitié-Salpêtrière [APHP]-Sorbonne Université (SU), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP]
Subjects: Adult, Male, IgG4, Sphingolipids, Fabry disease, Research, lcsh:R, lcsh:Medicine, Enzyme-Linked Immunosorbent Assay, Lysosomal storage disease, Middle Aged, Antibodies, Agalsidase, Lysosomal Storage Diseases, Immunoglobulin G, alpha-Galactosidase, Enzyme replacement therapy, Anti-drug antibodies, Humans, [SDV.IMM]Life Sciences [q-bio]/Immunology, Female, [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie, Prospective Studies, Glycolipids
Abstract: International audience; BACKGROUND: Fabry disease (OMIM #301500) is an X-linked disorder caused by alpha-galactosidase A deficiency with two major clinical phenotypes: classic and non-classic of different prognosis. From 2001, enzyme replacement therapies (ERT) have been available. We aimed to determine the epidemiology and the functional characteristics of anti-drug antibodies. Patients from the French multicenter cohort FFABRY (n = 103 patients, 53 males) were prospectively screened for total anti-agalsidase IgG and IgG subclasses with a home-made enzyme-linked immunosorbent assay (ELISA), enzyme-inhibition assessed with neutralization assays and lysoGb3 plasma levels, and compared for clinical outcomes.RESULTS: Among the patients exposed to agalsidase, 40% of men (n = 18/45) and 8% of women (n = 2/25) had antibodies with a complete cross-reactivity towards both ERTs. Antibodies developed preferentially in men with non-missense GLA mutations (relative risk 2.88, p = 0.006) and classic phenotype (58.6% (17/29) vs 6.7% (1/16), p = 0.0005). Specific anti-agalsidase IgG1 were the most frequently observed (16/18 men), but the highest concentrations were observed for IgG4 (median 1.89 μg/ml, interquartile range (IQR) [0.41-12.24]). In the men exposed to agalsidase, inhibition was correlated with the total IgG titer (r = 0.67, p
Published: 2018

21. Expert Opinion on Managing Chronic HCV in Patients with Mixed Cryoglobulinaemia Vasculitis

Author: Patrice Cacoub, Mark Bondin, Anna Linda Zignego, Jean-Michel Pawlotsky, Gestionnaire, Hal Sorbonne Université, Università degli Studi di Firenze = University of Florence (UniFI), Institut Mondor de Recherche Biomédicale (IMRB), Institut National de la Santé et de la Recherche Médicale (INSERM)-IFR10-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Service de bactériologie, virologie, hygiène [Mondor], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Henri Mondor-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Centre National de Référence Virus des hépatites B, C et Delta, Institut National de la Transfusion Sanguine [Paris] (INTS)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Immunologie - Immunopathologie - Immunothérapie [CHU Pitié Salpêtrière] (I3), CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Service de Département de médecine interne et immunologie clinique [CHU Pitié-Salpêtrière] (DMIIC), CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Sorbonne Université - Faculté de Médecine (SU FM), Sorbonne Université (SU), Università degli Studi di Firenze = University of Florence [Firenze] (UNIFI), CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Service de médecine interne et d'immunologie clinique [CHU Pitié-Salpêtrière], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], and Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)
Subjects: Vasculitis, medicine.medical_specialty, Population, Hepacivirus, Antiviral Agents, Severity of Illness Index, 03 medical and health sciences, 0302 clinical medicine, Adrenal Cortex Hormones, [SDV.MHEP.MI]Life Sciences [q-bio]/Human health and pathology/Infectious diseases, Internal medicine, Severity of illness, medicine, Humans, Pharmacology (medical), Precision Medicine, education, Expert Testimony, Survival rate, Survival analysis, Pharmacology, education.field_of_study, Mixed cryoglobulinaemia vasculitis, business.industry, Mortality rate, Disease Management, Plasmapheresis, Hepatitis C, Hepatitis C, Chronic, medicine.disease, Survival Analysis, 3. Good health, Infectious Diseases, Cryoglobulinemia, 030220 oncology & carcinogenesis, [SDV.MHEP.MI] Life Sciences [q-bio]/Human health and pathology/Infectious diseases, 030211 gastroenterology & hepatology, Rituximab, business, Systemic vasculitis
Abstract: International audience; Mixed cryoglobulinaemia vasculitis (CryoVas) is a small-vessel systemic vasculitis caused by deposition of mixed cryoglobulins and is characterized by a wide range of clinical symptoms. HCV is the primary cause of CryoVas, which is associated with significant morbidity and mortality. The mortality rate among patients with HCV-associated CryoVas is 3× that of the general population, with a 63% 10-year survival rate. First-line treatment for CryoVas is anti-HCV therapy because viral clearance is associated with clinical improvement. The introduction of highly effective, interferon-free, direct-acting antiviral regimens provides additional treatment options for these patients. Here, we review recent studies investigating the effect of antiviral therapy on HCV-associated CryoVas and provide expert opinion for health-care professionals managing these patients.
Published: 2018

22. Severe diffuse alveolar hemorrhage related to autoimmune disease: a multicenter study

Author: Alexandre Demoule, Eric Mariotte, Etienne de Montmollin, Matthieu Resche-Rigon, David Saadoun, Guillaume Geri, Jacques Cadranel, Nicolas de Prost, Naïke Bigé, Mathilde Neuville, Julien Mayaux, Adrien Mirouse, Vincent Audigier, Mathieu Vautier, Antoine Parrot, Patrice Cacoub, Nicolas Bréchot, Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Immunologie - Immunopathologie - Immunothérapie [CHU Pitié Salpêtrière] (I3), CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Service de Département de médecine interne et immunologie clinique [CHU Pitié-Salpêtrière] (DMIIC), CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Service de Pneumologie - Oncologie Thoracique - Maladies Pulmonaires Rares [CHU Tenon], CHU Tenon [AP-HP], CEDRIC. Méthodes statistiques de data-mining et apprentissage (CEDRIC - MSDMA), Centre d'études et de recherche en informatique et communications (CEDRIC), Ecole Nationale Supérieure d'Informatique pour l'Industrie et l'Entreprise (ENSIIE)-Conservatoire National des Arts et Métiers [CNAM] (CNAM)-Ecole Nationale Supérieure d'Informatique pour l'Industrie et l'Entreprise (ENSIIE)-Conservatoire National des Arts et Métiers [CNAM] (CNAM), Conservatoire National des Arts et Métiers [CNAM] (CNAM), Service de Pneumologie et Réanimation Médicale [CHU Pitié-Salpêtrière] (Département ' R3S '), Service de réanimation médicale polyvalente [CHU Cochin], Hôpital Cochin [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Hopital Saint-Louis [AP-HP] (AP-HP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Service de Réanimation Médicale [CHU Pitié-Salpétrière], Service de réanimation médicale, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Henri Mondor-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Service de médecine interne [CHU Caen], Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-CHU Caen, Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN)-Tumorothèque de Caen Basse-Normandie (TCBN), CIC - CHU Bichat, Institut National de la Santé et de la Recherche Médicale (INSERM), Service de Réanimation Médicale [CHU Saint-Antoine], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), Hôpital Delafontaine, Centre Hospitalier de Saint-Denis [Ile-de-France], Service de biostatistiques et information médicale [Saint-Louis], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Groupe Hospitalier Saint Louis - Lariboisière - Fernand Widal [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université de Paris (UP), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Ecole Nationale Supérieure d'Informatique pour l'Industrie et l'Entreprise (ENSIIE)-Conservatoire National des Arts et Métiers [CNAM] (CNAM), HESAM Université (HESAM)-HESAM Université (HESAM)-Ecole Nationale Supérieure d'Informatique pour l'Industrie et l'Entreprise (ENSIIE)-Conservatoire National des Arts et Métiers [CNAM] (CNAM), HESAM Université (HESAM)-HESAM Université (HESAM), HESAM Université (HESAM), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Cochin [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Cité (UPC), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Service de Pneumologie = Pneumologie - Oncologie Thoracique - Maladies Pulmonaires Rares [CHU Tenon], HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-Ecole Nationale Supérieure d'Informatique pour l'Industrie et l'Entreprise (ENSIIE)-Conservatoire National des Arts et Métiers [CNAM] (CNAM), HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM), HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Cité (UPCité), CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], and Service de médecine interne et d'immunologie clinique [CHU Pitié-Salpêtrière]
Subjects: Male, [SDV]Life Sciences [q-bio], medicine.medical_treatment, Critical Care and Intensive Care Medicine, law.invention, 0302 clinical medicine, law, Antiphospholipid syndrome, Medicine, 030212 general & internal medicine, Diffuse alveolar hemorrhage, lcsh:Medical emergencies. Critical care. Intensive care. First aid, Middle Aged, Intensive care unit, 3. Good health, Anti-MBG-associated vasculitis, Intensive Care Units, Cryoglobulinemia, SAPS II, Rituximab, Female, France, medicine.drug, Adult, medicine.medical_specialty, IgA-associated vasculitis, Hemorrhage, mechanical ventilation, Autoimmune Diseases, 03 medical and health sciences, Systemic lupus erythematosus, Internal medicine, Humans, Plasma exchange, Renal replacement therapy, Aged, Retrospective Studies, 030203 arthritis & rheumatology, Mechanical ventilation, business.industry, Research, lcsh:RC86-88.9, medicine.disease, Pulmonary Alveoli, ICU, ICU, mechanical ventilation, Complication, business, ANCA-associated vasculitis, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract: Background Diffuse alveolar hemorrhage (DAH) occurs during the course of autoimmune disease and may be life threatening. The objective was to assess characteristics and prognosis factors of DAH who required intensive care unit (ICU) admission in patients with autoimmune diseases. Methods French multicenter retrospective study including patients presenting DAH related to autoimmune diseases requiring ICU admission from 2000 to 2016. Results One hundred four patients (54% of men) with median age of 56 [32–68] years were included with 79 (76%) systemic vasculitis and 25 (24%) connective tissue disorders. All patients received steroids, and 72 (69%), 12 (11.5%), and 57 (55%) patients had cyclophosphamide, rituximab, and plasma exchanges, respectively. During ICU stay, 52 (50%), 36 (35%), and 55 (53%) patients required mechanical ventilation, vasopressor use, and renal replacement therapy, respectively. Factors associated with mechanical ventilation weaning were age (HR [95%CI] 0.97 [0.96–0.99] per 10 years, p p = 0.04), and time from dyspnea onset to ICU admission (0.99 [0.99–1] per day, p = 0.03). ICU mortality was 15%. Factors associated with alive status at ICU discharge were chronic cardiac failure (HR [95%CI] 0.37 [0.15–0.94], p = 0.04), antiphospholipid syndrome-related DAH (3.17 [1.89–5.32], p p = 0.007), and oxygen flow at ICU admission (0.95 [0.91–0.99] per liter/min, p = 0.04). Conclusion DAH in autoimmune diseases is a life-threatening complication which requires mechanical ventilation in half of the cases admitted to ICU.
Published: 2019

23. CD8+T-bet+ cells as a predominant biomarker for inclusion body myositis

Author: D. Amelin, Aurélien Corneau, Catherine Blanc, Kuberaka Mariampillai, Gaëlle Dzangué-Tchoupou, Yves Allenbach, Wladimir Mauhin, Loïs Bolko, Olivier Benveniste, Centre de recherche en Myologie – U974 SU-INSERM, Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU), Institut de Myologie, Centre National de la Recherche Scientifique (CNRS)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Association française contre les myopathies (AFM-Téléthon)-Sorbonne Université (SU), Service de Département de médecine interne et immunologie clinique [CHU Pitié-Salpêtrière] (DMIIC), CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Plateforme Cytométrie Pitié-Salpêtrière (LUMIC-CYPS), Unité Mixte de Service d'Imagerie et de Cytométrie [CHU Saint-Antoine] (UMS LUMIC), Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Unité Mixte de Service d'Imagerie et de Cytométrie (UMS LUMIC), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Pierre et Marie Curie - Paris 6 (UPMC), Cytométrie Pitié-Salpêtrière (PASS-CYPS), Unité Mixte de Service Production et Analyse de données en Sciences de la vie et en Santé (PASS), Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Association française contre les myopathies (AFM-Téléthon)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Unité Mixte de Service d'Imagerie et de Cytométrie [CHU Saint-Antoine] (UMS LUMIC), Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM), CCSD, Accord Elsevier, Centre de Recherche en Myologie, Service de médecine interne et d'immunologie clinique [CHU Pitié-Salpêtrière], CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Physiopathologie et biothérapies des maladies inflammatoires et autoimmunes, Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU), and CHU Pitié-Salpêtrière [APHP]
Subjects: [SDV.BIO]Life Sciences [q-bio]/Biotechnology, [SDV.IMM] Life Sciences [q-bio]/Immunology, [SDV]Life Sciences [q-bio], Immunology, Population, Physiopathology, chemical and pharmacologic phenomena, CD38, 03 medical and health sciences, 0302 clinical medicine, medicine, Immunology and Allergy, Mass cytometry, education, Interleukin-7 receptor, ComputingMilieux_MISCELLANEOUS, Myositis, 030304 developmental biology, 0303 health sciences, education.field_of_study, [SDV.MHEP] Life Sciences [q-bio]/Human health and pathology, business.industry, medicine.disease, 3. Good health, [SDV.BIO] Life Sciences [q-bio]/Biotechnology, [SDV] Life Sciences [q-bio], [SDV.IMM.IA]Life Sciences [q-bio]/Immunology/Adaptive immunology, CD8+ T-bet+ cells, Biomarker (medicine), [SDV.IMM]Life Sciences [q-bio]/Immunology, Inclusion body myositis, business, Deep immune profiling, 030217 neurology & neurosurgery, CD8, Biomarkers, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract: Background Myositis is a heterogeneous group of muscular auto-immune diseases with clinical and pathological criteria that allow the classification of patients into different sub-groups. Inclusion body myositis is the most frequent myositis above fifty years of age. Diagnosing inclusion body myositis requires expertise and is challenging. Little is known concerning the pathogenic mechanisms of this disease in which conventional suppressive-immune therapies are inefficacious. Objectives Our aim was to deepen our understanding of the immune mechanisms involved in inclusion body myositis and identify specific biomarkers. Methods Using a panel of thirty-six markers and mass cytometry, we performed deep immune profiling of peripheral blood cells from inclusion body myositis patients and healthy donors, divided into two cohorts: test and validation cohorts. Potential biomarkers were compared to myositis controls (anti-Jo1-, anti-3-hydroxyl-3-methylglutaryl CoA reductase-, and anti-signal recognition particle-positive patients). Results Unsupervised analyses revealed substantial changes only within CD8+ cells. We observed an increase in the frequency of CD8+ cells that expressed high levels of T-bet, and containing mainly both effector and terminally differentiated memory cells. The senescent marker CD57 was overexpressed in CD8+T-bet+ cells of inclusion body myositis patients. As expected, senescent CD8+T-bet+ CD57+ cells of both patients and healthy donors were CD28nullCD27nullCD127null. Surprisingly, non-senescent CD8+T-bet+ CD57- cells in inclusion body myositis patients expressed lower levels of CD28, CD27, and CD127, and expressed higher levels of CD38 and HLA-DR compared to healthy donors. Using classification and regression trees alongside receiver operating characteristics curves, we identified and validated a frequency of CD8+T-bet+ cells >51.5% as a diagnostic biomarker specific to inclusion body myositis, compared to myositis control patients, with a sensitivity of 94.4%, a specificity of 88.5%, and an area under the curve of 0.97. Conclusion Using a panel of thirty-six markers by mass cytometry, we identify an activated cell population (CD8+T-bet+ CD57- CD28lowCD27lowCD127low CD38+ HLA-DR+) which could play a role in the physiopathology of inclusion body myositis, and identify CD8+T-bet+ cells as a predominant biomarker of this disease.
Published: 2019

24. Hepatitis C Virus Infection, a New Modifiable Cardiovascular Risk Factor

Author: Patrice Cacoub, Gestionnaire, Hal Sorbonne Université, Service de Département de médecine interne et immunologie clinique [CHU Pitié-Salpêtrière] (DMIIC), CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Immunologie - Immunopathologie - Immunothérapie [CHU Pitié Salpêtrière] (I3), CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Service de médecine interne et d'immunologie clinique [CHU Pitié-Salpêtrière], CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP]
Subjects: Hepatitis C virus, Hepacivirus, medicine.disease_cause, Antiviral Agents, 03 medical and health sciences, 0302 clinical medicine, [SDV.MHEP.CSC]Life Sciences [q-bio]/Human health and pathology/Cardiology and cardiovascular system, Risk Factors, [SDV.MHEP.MI]Life Sciences [q-bio]/Human health and pathology/Infectious diseases, medicine, Humans, Risk factor, ComputingMilieux_MISCELLANEOUS, 030304 developmental biology, 0303 health sciences, Hepatology, business.industry, Gastroenterology, Hepatitis C, [SDV.MHEP.CSC] Life Sciences [q-bio]/Human health and pathology/Cardiology and cardiovascular system, Cardiovascular Diseases, [SDV.SPEE] Life Sciences [q-bio]/Santé publique et épidémiologie, Immunology, [SDV.MHEP.MI] Life Sciences [q-bio]/Human health and pathology/Infectious diseases, 030211 gastroenterology & hepatology, [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie, business
Abstract: International audience
Published: 2019

25. Using transferrin saturation as a diagnostic criterion for iron deficiency: A systematic review

Author: Patrice Cacoub, Cécile Vandewalle, Katell Peoc'h, Service de Département de médecine interne et immunologie clinique [CHU Pitié-Salpêtrière] (DMIIC), CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Biodimed Conseils [Paris, France], Université Paris Diderot - Paris 7 (UPD7), Centre de recherche sur l'Inflammation (CRI (UMR_S_1149 / ERL_8252 / U1149)), Université Paris Diderot - Paris 7 (UPD7)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Hôpital Beaujon, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Diderot - Paris 7 (UPD7)-Hôpital Beaujon [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Gestionnaire, Hal Sorbonne Université, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Service de médecine interne et d'immunologie clinique [CHU Pitié-Salpêtrière], CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7), Hôpital Beaujon [AP-HP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Diderot - Paris 7 (UPD7)
Subjects: Micronutrient deficiency, Iron, Clinical Biochemistry, Physiology, 030204 cardiovascular system & hematology, General Biochemistry, Genetics and Molecular Biology, 03 medical and health sciences, 0302 clinical medicine, medicine, Humans, transferrin, International harmonization, [SDV.MHEP.EM] Life Sciences [q-bio]/Human health and pathology/Endocrinology and metabolism, chemistry.chemical_classification, biology, Transferrin saturation, business.industry, Iron deficiency, saturation, Publications, Biochemistry (medical), ferritin, Iron Deficiencies, [SDV.MHEP.EM]Life Sciences [q-bio]/Human health and pathology/Endocrinology and metabolism, medicine.disease, 3. Good health, Ferritin, chemistry, Transferrin, 030220 oncology & carcinogenesis, Ferritins, biology.protein, Transferrins, Saturation (chemistry), business
Abstract: International audience; Iron deficiency is the most common micronutrient deficiency in the world and represents a major challenge for public health, notably in terms of morbidity and mortality. It remains largely under-diagnosed due to the low level of exploration and the absence of international harmonization for biological tests and thresholds. We performed a systematic review of the literature using PubMed, which allowed us to identify 41 publications within the scope of this review. This analysis shows the benefit of using transferrin saturation in addition to ferritin, in the diagnosis of iron deficiency and even in first-line analysis for patients with chronic inflammatory diseases.
Published: 2019

26. Corticosteroids and immunosuppressive agents for idiopathic recurrent pericarditis

Author: Patrice Cacoub, Fanny Domont, Nathan Peiffer-Smadja, David Saadoun, Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Immunologie - Immunopathologie - Immunothérapie [CHU Pitié Salpêtrière] (I3), CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Service de médecine interne et d'immunologie clinique [CHU Pitié-Salpêtrière], CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Service de Département de médecine interne et immunologie clinique [CHU Pitié-Salpêtrière] (DMIIC), Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Gestionnaire, Hal Sorbonne Université, Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)
Subjects: Adult, 0301 basic medicine, medicine.medical_specialty, Immunology, Azathioprine, Mycophenolate, Idiopathic pericarditis, Gastroenterology, 03 medical and health sciences, chemistry.chemical_compound, Pericarditis, 0302 clinical medicine, Acute pericarditis, [SDV.MHEP.CSC]Life Sciences [q-bio]/Human health and pathology/Cardiology and cardiovascular system, Adrenal Cortex Hormones, Recurrence, Internal medicine, Humans, Immunology and Allergy, Medicine, Colchicine, Retrospective Studies, 030203 arthritis & rheumatology, Aspirin, business.industry, [SDV.IMM.IMM]Life Sciences [q-bio]/Immunology/Immunotherapy, medicine.disease, [SDV.MHEP.CSC] Life Sciences [q-bio]/Human health and pathology/Cardiology and cardiovascular system, 3. Good health, 030104 developmental biology, chemistry, [SDV.SP.PHARMA] Life Sciences [q-bio]/Pharmaceutical sciences/Pharmacology, [SDV.SP.PHARMA]Life Sciences [q-bio]/Pharmaceutical sciences/Pharmacology, Female, Methotrexate, Recurrent pericarditis, [SDV.IMM.IMM] Life Sciences [q-bio]/Immunology/Immunotherapy, Immunosuppressive agents, business, Complication, medicine.drug
Abstract: International audience; Recurrent pericarditis is a frequent and troublesome complication of acute pericarditis. Aspirin or non-steroidal anti-inflammatory drugs (NSAIDs) and colchicine are the mainstay of therapy but few data is available on second-line treatment. We retrospectively analyzed 13 patients, 7 females (54%), median age 40 years, with a median of 4 (IQR 1-6) recurrences per patient despite a well conducted first-line treatment and a median follow-up of 59 months (IQR 38-70). Ten patients received corticosteroids as second-line therapy; 6 out of 10 responded to this therapy while 4 needed the addition of azathioprine. Three other patients received an immunosuppressive agent as second-line therapy (azathioprine, methotrexate, mycophenolate mofetyl). Overall, the mean frequency per month (± SD) of pericarditis recurrences was 0.69 (± 0.40) with aspirin/NSAIDs and colchicine, 0.22 (± 0.34) with corticosteroids alone and 0.01 (± 0.04) with immunosuppressive agents (p
Published: 2019

27. Preventing Calpain Externalization by Reducing ABCA1 Activity with Probenecid Limits Melanoma Angiogenesis and Development

Author: Laurent Baud, Guillaume Hanouna, Joëlle Perez, Jean-Philippe Haymann, Emmanuel Letavernier, Sophie Vandermeersch, Ellie Tang, Gestionnaire, Hal Sorbonne Université, Des Maladies Rénales Rares aux Maladies Fréquentes, Remodelage et Réparation, Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), CHU Tenon [AP-HP], CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP]
Subjects: 0301 basic medicine, Male, Skin Neoplasms, MESH: Calpain, Angiogenesis, [SDV]Life Sciences [q-bio], Melanoma, Experimental, MESH: Probenecid, MESH: Calcium-Binding Proteins, Biochemistry, chemistry.chemical_compound, Mice, 0302 clinical medicine, MESH: Animals, Calpastatin, biology, Neovascularization, Pathologic, Calpain, Probenecid, Melanoma, [SDV] Life Sciences [q-bio], MESH: Melanoma, Experimental, Vascular endothelial growth factor, 030220 oncology & carcinogenesis, medicine.drug, ATP Binding Cassette Transporter 1, MESH: Cell Line, Tumor, MESH: Mice, Transgenic, Mice, Transgenic, Dermatology, 03 medical and health sciences, MESH: Cell Proliferation, Cell Line, Tumor, medicine, Extracellular, Animals, Humans, MESH: ATP Binding Cassette Transporter 1, MESH: Mice, Molecular Biology, Cell Proliferation, MESH: Humans, MESH: Skin Neoplasms, Calcium-Binding Proteins, Cell Biology, medicine.disease, MESH: Male, Fibronectin, 030104 developmental biology, chemistry, biology.protein, Cancer research, MESH: Neovascularization, Pathologic
Abstract: International audience; Calpains, intracellular proteases specifically inhibited by calpastatin, play a major role in neoangiogenesis involved in tumor invasiveness and metastasis. They are partly exteriorized via the ATP-binding cassette transporter A1(ABCA1) transporter, but the importance of this process in tumor growth is still unknown. The aim of our study was to investigate the role of extracellular calpains in a model of melanoma by blocking their extracellular activity or exteriorization. In the first approach, a B16-F10 model of melanoma was developed in transgenic mice expressing high extracellular levels of calpastatin. In these mice, tumor growth was inhibited by ∼ 3-fold compared with wild-type animals. In vitro cytotoxicity assays and in vivo tumor studies have demonstrated that this protection was associated with a defect in tumor neoangiogenesis. Similarly, in wild-type animals given probenecid to blunt ABCA1 activity, melanoma tumor growth was inhibited by ∼ 3-fold. Again, this response was associated with a defect in neoangiogenesis. In vitro studies confirmed that probenecid limited endothelial cell migration and capillary formation from vascular explants. The observed reduction in fibronectin cleavage under these conditions is potentially involved in the response. Collectively, these studies demonstrate that probenecid, by blunting ABCA1 activity and thereby calpain exteriorization, limits melanoma tumor neoangiogenesis and invasiveness.
Published: 2018

28. [Hepatitis C virus infection, 1989-2019: From discovery to eradication]

Author: Cacoub, P., Halfon, P., CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Immunologie - Immunopathologie - Immunothérapie [CHU Pitié Salpêtrière] (I3), CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Hôpital Européen [Fondation Ambroise Paré - Marseille], Microbes évolution phylogénie et infections (MEPHI), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], and COMBE, Isabelle
Subjects: [SDV.MP.VIR] Life Sciences [q-bio]/Microbiology and Parasitology/Virology, [SDV.MHEP.ME] Life Sciences [q-bio]/Human health and pathology/Emerging diseases, [SDV.MHEP.ME]Life Sciences [q-bio]/Human health and pathology/Emerging diseases, Hepatitis C, Chronic, History, 20th Century, [SDV.MP.BAC]Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology, History, 21st Century, [SDV.MHEP.CSC] Life Sciences [q-bio]/Human health and pathology/Cardiology and cardiovascular system, [SDV.MHEP.CSC]Life Sciences [q-bio]/Human health and pathology/Cardiology and cardiovascular system, [SDV.MHEP.MI]Life Sciences [q-bio]/Human health and pathology/Infectious diseases, [SDV.MP.VIR]Life Sciences [q-bio]/Microbiology and Parasitology/Virology, [SDV.MHEP.MI] Life Sciences [q-bio]/Human health and pathology/Infectious diseases, Humans, [SDV.MP.PAR]Life Sciences [q-bio]/Microbiology and Parasitology/Parasitology, [SDV.MP.BAC] Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology, Disease Eradication, [SDV.MP.PAR] Life Sciences [q-bio]/Microbiology and Parasitology/Parasitology
Abstract: International audience; En 2015, l’Organisation mondiale de la santé (OMS) estimait à 71 millions le nombre de personnes vivant avec une infection chronique par le virus de l’hépatite C (VHC), soit une prévalence globale 1 %, ayant conduit à 400 000 décès par cirrhose et carcinome hépatocellulaire [1]. À côté des complications hépatiques, de nombreuses autres comorbidités extra hépatiques ont été rattachées à l’infection chronique par le VHC, notamment dépression, diabète, maladies rénales chroniques, maladies cardiovasculaires, troubles cognitifs [2]. Le nombre annuel de nouvelles infections était estimé à 1,7 millions, essentiellement liées aux injections de drogues par voie intraveineuse. Il nous a semblé instructif de retracer l’histoire de l’infection à VHC, qui est passée en moins de trois décennies d’une infection dont le pathogène était non identifié à une maladie infectieuse virale chronique à multiples facettes, hépatiques et extra hépatiques, que nous souhaitons éradiquer du globe [3] !
Published: 2018

29. Immunological and clinical effects of low-dose interleukin-2 across 11 autoimmune diseases in a single, open clinical trial

Author: Hang-Phuong Pham, Philippe Seksik, Beatrice Banneville, Olivier Chazouillères, Fabien Pitoiset, Julien Champey, Bruno Fautrel, David Saadoun, Laurent Beaugerie, Valérie Doppler, Patrice Cacoub, Karim El Soufi, Selim Aractingi, Christophe Corpechot, Roberta Lorenzon, David Klatzmann, Michelle Rosenzwajg, Francis Berenbaum, Claude C.A. Bernard, Eric Vicaut, Jérémie Mariau, Elodie Regnier, Joe-Elie Salem, Anne Daguenel-Nguyen, Jérémie Sellam, Arsène Mekinian, Claire Ribet, Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Université Pierre et Marie Curie - Paris 6 (UPMC)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Immunologie - Immunopathologie - Immunothérapie [CHU Pitié Salpêtrière] (I3), CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), Sorbonne Université (SU), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Service de médecine interne [CHU Pitié-Salpétrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], Immunologie - Immunopathologie - Immunothérapie (I3), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Service de Dermatologie [CHU Cochin], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Cochin [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Service de Rhumatologie [CHU Pitié Salpêtrière], CHU Pitié-Salpêtrière [AP-HP], Service de Gastroentérologie et nutrition [CHU Saint-Antoine], CHU Saint-Antoine [AP-HP], Service de rhumatologie [CHU Saint-Antoine], Service d'hépatologie [CHU Saint-Antoine], Université Pierre et Marie Curie - Paris 6 (UPMC)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Saint-Antoine [AP-HP], Service d'Hépato-gastro-entérologie [CHU Saint-Antoine], Service de médecine interne [CHU Saint-Antoine], Immunologie - Immunopathologie - Immunothérapeutique (I3), Service de Département de médecine interne et immunologie clinique [CHU Pitié-Salpêtrière] (DMIIC), Service de Pharmacologie médicale [CHU Pitié-Salpêtrière], Centre d'investigation clinique Paris Est [CHU Pitié Salpêtrière] (CIC Paris-Est), Centre d'investigation clinique pluridisciplinaire [CHU Pitié Salpêtrière] (CIC-P 1421), Service de Pharmacie [CHU Saint Antoine], Hôpitaux Universitaire Saint-Louis, Lariboisière, Fernand-Widal, Gestionnaire, Hal Sorbonne Université, Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Les Hôpitaux Universitaires de Strasbourg (HUS)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Hôpital Cochin [AP-HP], Université Pierre et Marie Curie - Paris 6 (UPMC), Centre de Recherche Saint-Antoine (UMRS893), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM), Unité de Recherche sur les Maladies Cardiovasculaires, du Métabolisme et de la Nutrition = Research Unit on Cardiovascular and Metabolic Diseases (ICAN), Université Pierre et Marie Curie - Paris 6 (UPMC)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Immunologie antivirale systémique et cérébrale, Université Paris-Sud - Paris 11 (UP11)-IFR93-Institut National de la Santé et de la Recherche Médicale (INSERM), Thérapie des maladies du muscle strié, Unité de Recherche Clinique, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Lariboisière-Fernand-Widal [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Diderot - Paris 7 (UPD7), ANR-16-RHUS-0001,iMAP,iMAP(2016), Bernard, Claude, Service de biothérapies [CHU Pitié-Salpétrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Centre de Référence des Maladies Rares - Maladies Inflammatoires des Voies Biliaires et Service d’Hépatologie [CHU Saint-Antoine], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Saint-Antoine [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Pierre et Marie Curie - Paris 6 (UPMC), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Etude et de Recherche sur le Matériau Bois (LERMAB), Université de Lorraine (UL), Service de rhumatologie [CHU Pitié Salpêtrière] (GRC-08 EEMOIS), Unité de Recherche sur les Maladies Cardiovasculaires, du Métabolisme et de la Nutrition = Institute of cardiometabolism and nutrition (ICAN), Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Pierre et Marie Curie - Paris 6 (UPMC), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Université Pierre et Marie Curie - Paris 6 (UPMC), CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Service d'hépatologie [Saint-Antoine], Service de Médecine Interne [CHU Saint-Antoine], Service de médecine interne et d'immunologie clinique [CHU Pitié-Salpêtrière], Service de pharmacologie médicale [CHU Pitié-Salpêtrière], CIC Paris Est, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], and Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)
Subjects: 0301 basic medicine, Adult, Male, [SDV.IMM] Life Sciences [q-bio]/Immunology, [SDV]Life Sciences [q-bio], Immunology, Autoimmune hepatitis, medicine.disease_cause, T-Lymphocytes, Regulatory, General Biochemistry, Genetics and Molecular Biology, Autoimmunity, Autoimmune Diseases, 03 medical and health sciences, 0302 clinical medicine, Rheumatology, Psoriasis, medicine, Immunology and Allergy, Humans, Immunologic Factors, Prospective Studies, ComputingMilieux_MISCELLANEOUS, 030203 arthritis & rheumatology, Ankylosing spondylitis, business.industry, Middle Aged, medicine.disease, Ulcerative colitis, 3. Good health, Clinical trial, [SDV] Life Sciences [q-bio], 030104 developmental biology, Treatment Outcome, Rheumatoid arthritis, Interleukin-2, [SDV.IMM]Life Sciences [q-bio]/Immunology, Female, business, Granulomatosis with polyangiitis
Abstract: ObjectiveRegulatory T cells (Tregs) prevent autoimmunity and control inflammation. Consequently, any autoimmune or inflammatory disease reveals a Treg insufficiency. As low-dose interleukin-2 (ld-IL2) expands and activates Tregs, it has a broad therapeutic potential.AimWe aimed to assess this potential and select diseases for further clinical development by cross-investigating the effects of ld-IL2 in a single clinical trial treating patients with 1 of 11 autoimmune diseases.MethodsWe performed a prospective, open-label, phase I–IIa study in 46 patients with a mild to moderate form of either rheumatoid arthritis, ankylosing spondylitis, systemic lupus erythematosus, psoriasis, Behcet’s disease, granulomatosis with polyangiitis, Takayasu’s disease, Crohn’s disease, ulcerative colitis, autoimmune hepatitis and sclerosing cholangitis. They all received ld-IL2 (1 million IU/day) for 5 days, followed by fortnightly injections for 6 months. Patients were evaluated by deep immunomonitoring and clinical evaluation.Resultsld-IL2 was well tolerated whatever the disease and the concomitant treatments. Thorough supervised and unsupervised immunomonitoring demonstrated specific Treg expansion and activation in all patients, without effector T cell activation. Indication of potential clinical efficacy was observed.ConclusionThe dose of IL-2 and treatment scheme used selectively activate and expand Tregs and are safe across different diseases and concomitant treatments. This and preliminary indications of clinical efficacy should licence the launch of phase II efficacy trial of ld-IL2 in various autoimmune and inflammatory diseases.Trial registration numberNCT01988506.
Published: 2018

30. Regulatory T Cells Orchestrate Similar Immune Evasion of Fetuses and Tumors in Mice

Author: David Klatzmann, Nicolas Derian, Djamel Nehar-Belaid, Maria Grazia Ruocco, Tristan Courau, Laura Florez, Immunologie - Immunopathologie - Immunothérapeutique (I3), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Immunologie - Immunopathologie - Immunothérapie (I3), CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), KLATZMANN, DAVID, Service de biothérapies [CHU Pitié-Salpétrière], Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], and Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)
Subjects: 0301 basic medicine, Regulatory T cell, [SDV]Life Sciences [q-bio], animal diseases, T cell, Immunology, chemical and pharmacologic phenomena, Biology, T-Lymphocytes, Regulatory, Immune tolerance, Fetal Development, Mice, 03 medical and health sciences, Fetus, Immune system, Downregulation and upregulation, Neoplasms, Immune Tolerance, medicine, Animals, Immunology and Allergy, ComputingMilieux_MISCELLANEOUS, Mice, Inbred BALB C, Tumor microenvironment, [SDV.MHEP] Life Sciences [q-bio]/Human health and pathology, Cell growth, biochemical phenomena, metabolism, and nutrition, Cell biology, Mice, Inbred C57BL, [SDV] Life Sciences [q-bio], 030104 developmental biology, medicine.anatomical_structure, Tumor Escape, bacteria, Female, Transcriptome, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract: Embryos and tumors are both masses of dividing cells expressing foreign Ags, but they are not rejected by the immune system. We hypothesized that similar tolerogenic mechanisms prevent their rejection. Global comparison of fetal and tumor microenvironments through transcriptomics in mice revealed strikingly similar and dramatic decreases in expression of numerous immune-related pathways, including Ag presentation and T cell signaling. Unsupervised analyses highlighted the parallel kinetics and similarities of immune signature downregulation, from the very first days after tumor or embryo implantation. Besides upregulated signatures related to cell proliferation, the only significant signatures shared by the two conditions across all biological processes and all time points studied were downmodulated immune response signatures. Regulatory T cell depletion completely reverses this immune downmodulation to an immune upregulation that leads to fetal or tumor immune rejection. We propose that evolutionarily selected mechanisms that protect mammalian fetuses from immune attack are hijacked to license tumor development.
Published: 2016

31. Immune checkpoint inhibitor-induced myositis, the earliest and most lethal complication among rheumatic and musculoskeletal toxicities

Author: Olivier Benveniste, Yves Allenbach, Jacques Cadranel, Ali Manouchehri, Bruno Fautrel, Michelle Rosenzwajg, Bénédicte Lebrun-Vignes, Javid Moslehi, David Klatzmann, Joe-Elie Salem, Stéphane Ederhy, Jean-Philippe Spano, Olivier Lambotte, Céline Anquetil, Douglas B. Johnson, Institut de Myologie, Centre National de la Recherche Scientifique (CNRS)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Association française contre les myopathies (AFM-Téléthon)-Sorbonne Université (SU), Centre de recherche en Myologie – U974 SU-INSERM, Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU), Service de Département de médecine interne et immunologie clinique [CHU Pitié-Salpêtrière] (DMIIC), CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Vanderbilt University Medical Center [Nashville], Vanderbilt University [Nashville], Immunologie des maladies virales, auto-immunes, hématologiques et bactériennes (IMVA-HB), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris-Saclay, Service de Médecine Interne - Immunologie Clinique [AP-HP Bicêtre], AP-HP Hôpital Bicêtre (Le Kremlin-Bicêtre), Service de pharmacologie médicale [CHU Pitié-Salpêtrière], CIC Paris Est, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), Sorbonne Université - Faculté de Médecine (SU FM), Sorbonne Université (SU), Service d'Oncologie médicale [CHU Pitié-Salpêtrière], Service de Cardiologie [CHU Saint-Antoine], CHU Saint-Antoine [AP-HP], Centre d’Investigation Clinique intégré en Biothérapies et immunologie [AP-HP pitié-salpêtrière, Paris] (CIC-BTi), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Immunologie - Immunopathologie - Immunothérapie [CHU Pitié Salpêtrière] (I3), CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Service de rhumatologie [CHU Pitié Salpêtrière] (GRC-08 EEMOIS), Service de Pneumologie - Oncologie Thoracique - Maladies Pulmonaires Rares [CHU Tenon], CHU Tenon [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Vanderbilt University School of Medicine [Nashville], Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Association française contre les myopathies (AFM-Téléthon)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Immunologie des Maladies Virales et Autoimmunes (IMVA - U1184), Université Paris-Sud - Paris 11 (UP11)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de la Santé et de la Recherche Médicale (INSERM), Hôpital Bicêtre, Centre d'investigation clinique Paris Est [CHU Pitié Salpêtrière] (CIC Paris-Est), Centre d'investigation clinique Biothérapie [CHU Pitié-Salpêtrière] (CIC-BTi), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Centre d'investigation clinique pluridisciplinaire [CHU Pitié Salpêtrière] (CIC-P 1421), Neyroud, Nathalie, CCSD, Accord Elsevier, Service de Pharmacologie médicale [CHU Pitié-Salpêtrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Service de Rhumatologie [CHU Pitié Salpêtrière], Service de Pneumologie = Pneumologie - Oncologie Thoracique - Maladies Pulmonaires Rares [CHU Tenon], Centre de Recherche en Myologie, Service de médecine interne et d'immunologie clinique [CHU Pitié-Salpêtrière], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], and Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)
Subjects: 0301 basic medicine, medicine.medical_specialty, Myocarditis, [SDV]Life Sciences [q-bio], Immunology, Adverse drug reactions, Arthritis, Polymyalgia rheumatica, Pharmacovigilance, Immune checkpoint inhibitors, 03 medical and health sciences, Antineoplastic Agents, Immunological, 0302 clinical medicine, Rheumatology, Internal medicine, medicine, Humans, Immunology and Allergy, Adverse effect, Myositis, Retrospective Studies, Pharmacology, 030203 arthritis & rheumatology, business.industry, Bayes Theorem, medicine.disease, 3. Good health, [SDV] Life Sciences [q-bio], 030104 developmental biology, Sarcoidosis, business
Abstract: International audience; Background: In addition to restoring anti-tumor immune responses, immune checkpoint inhibitors (ICI) may also induce immune-related adverse events (irAE) that can affect any organ. We aim to determine the spectrum, timing, clinical features, and fatalities of rheumatic and musculoskeletal immune-related adverse events (RMS-irAE) associated with ICI.Patients methods: We performed an observational, retrospective, pharmacovigilance study using the World Health Organization international pharmacovigilance database, VigiBase, from inception to January 2019. RMS-irAE reporting rate on ICI versus full database was performed using disproportionality analysis with computation of reporting-odds-ratios (ROR) and a Bayesian disproportional estimate (information component, IC). IC025 (lower end of the IC 95% credibility interval) >0 is deemed significant.Results: We identified 1288 RMS-irAE significantly associated with ICI: polymyalgia rheumatica (n = 76, ROR = 14.6 [11.6-18.4], IC025 = 3.34), sarcoidosis (n = 94; ROR = 9.6 [7.9-11.9]; IC025 = 2.85), Sjogren's syndrome (n = 49; ROR = 6.9 [5.2-9.2]; IC025 = 2.24), myositis (n = 465; ROR = 4.9 [4.5-5.4]; IC025 = 2.12), arthritis (n = 606; ROR = 1.4 [1.3-1.5]; IC025 = 0.34) and scleroderma (n = 17; ROR = 2.0 [1.2-3.2]; IC025 = 0.17). Arthritis, myositis, and Sjogren's syndrome were over-reported in patients treated with ICI combination versus those treated with ICI monotherapy (ROR = 1.6-2.9, p < .05) and more frequently reported on anti-PD1/PDL1 monotherapy vs. anti-CTLA4 monotherapy (2.1-4.4, p < .05). Median time to onset occurred early for myositis (31 days [19.2-57.8]) and was the most delayed for scleroderma (395 days [323.8-457.2], p < .0001). The fatality rate for RMS-irAE ranged from 24% for myositis (n = 106/441) (up to 56.7% with concurrent myocarditis) to [0-6.7%] for other RMS-irAE (p < .0001).Conclusions: Clinicians should be aware of the spectrum of RMS-irAE. Myositis can be particularly life-threatening, particularly when associated with myocarditis.
Published: 2020

32. Expert opinion on managing chronic HCV infection in patients with type 2 diabetes mellitus

Author: Ira M. Jacobson, Luigi Elio Adinolfi, Patrice Cacoub, Mark Bondin, Adinolfi, Luigi Elio, Jacobson, Ira, Bondin, Mark, Cacoub, Patrice, Gestionnaire, Hal Sorbonne Université, Università degli studi della Campania 'Luigi Vanvitelli' = University of the Study of Campania Luigi Vanvitelli, Weill Medical College of Cornell University [New York], New York University Langone Medical Center (NYU Langone Medical Center), NYU System (NYU), Immunologie - Immunopathologie - Immunothérapie [CHU Pitié Salpêtrière] (I3), CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Sorbonne Université - Faculté de Médecine (SU FM), Sorbonne Université (SU), Service de Département de médecine interne et immunologie clinique [CHU Pitié-Salpêtrière] (DMIIC), CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Università degli studi della Campania 'Luigi Vanvitelli', CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Service de médecine interne et d'immunologie clinique [CHU Pitié-Salpêtrière], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], and Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)
Subjects: 0301 basic medicine, Blood Glucose, Liver Cirrhosis, medicine.medical_specialty, Cirrhosis, Carcinoma, Hepatocellular, endocrine system diseases, [SDV]Life Sciences [q-bio], Context (language use), Antiviral Agents, 03 medical and health sciences, Liver disease, 0302 clinical medicine, Fibrosis, Interferon, Risk Factors, Internal medicine, Medicine, Humans, Pharmacology (medical), In patient, Expert Testimony, Pharmacology, Glycated Hemoglobin, business.industry, Liver Neoplasms, Type 2 Diabetes Mellitus, nutritional and metabolic diseases, Disease Management, Hepatitis C, Chronic, medicine.disease, 030112 virology, 3. Good health, [SDV] Life Sciences [q-bio], Drug Combinations, Infectious Diseases, Treatment Outcome, Diabetes Mellitus, Type 2, Liver, Hepatocellular carcinoma, 030211 gastroenterology & hepatology, Insulin Resistance, business, medicine.drug
Abstract: International audience; Type 2 diabetes mellitus (T2DM) has been identified as an extrahepatic manifestation of chronic HCV infection. Conversely, in the context of chronic HCV infection, T2DM can accelerate the course of HCV-induced liver disease leading to increased risk of fibrosis, cirrhosis and hepatocellular carcinoma. The presence of T2DM negatively impacts the efficacy of interferon-based antiviral therapy, but real-world data with high-efficacy direct-acting antiviral therapies suggest high viral clearance rates in T2DM patients. In HCV-infected individuals, viral eradication is associated with a reduced risk of de novo T2DM in non-diabetic patients and beneficial metabolic changes in patients with T2DM, highlighting the importance of antiviral treatment and physician awareness of this association.
Published: 2018

33. Prognostic value of viral eradication for major adverse cardiovascular events in hepatitis C cirrhotic patients

Author: Patrice Cacoub, Pierre Nahon, Richard Layese, Lorraine Blaise, Anne Claire Desbois, Valérie Bourcier, Carole Cagnot, Patrick Marcellin, Dominique Guyader, Stanislas Pol, Dominique Larrey, Victor De Lédinghen, Denis Ouzan, Fabien Zoulim, Dominique Roulot, Albert Tran, Jean-Pierre Bronowicki, Jean-Pierre Zarski, Ghassan Riachi, Paul Calès, Jean-Marie Péron, Laurent Alric, Marc Bourlière, Philippe Mathurin, Jean-Frédéric Blanc, Armand Abergel, Lawrence Serfaty, Ariane Mallat, Jean-Didier Grangé, Pierre Attali, Yannick Bacq, Claire Wartelle, Thông Dao, Dominique Thabut, Christophe Pilette, Christine Silvain, Christos Christidis, Dominique Capron, Gérard Thiefin, David Zucman, Vincent Di Martino, Corinne Isnard Bagnis, Marianne Ziol, Angela Sutton, Eric Letouze, Françoise Roudot-Thoraval, Etienne Audureau, Hélène Fontaine, Vincent Leroy, Sebastien Dharancy, Yves Benhamou, Sophie Hillaire, CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Immunologie - Immunopathologie - Immunothérapie (I3), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Génomique Fonctionnelle des Tumeurs Solides (U1162), Université Paris 13 (UP13)-Université Paris Diderot - Paris 7 (UPD7)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Hôpital Jean Verdier [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Clinical Epidemiology and Ageing : Geriatrie Soins Primaires et Santé Publique (CEpiA), Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Pôle Recherche Clinique-Santé Publique [Mondor], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Henri Mondor, Université Sorbonne Paris Nord - UFR des Sciences de la communication (USPN UP13 UFR SC), Université Sorbonne Paris Nord, Agence Nationale de Recherches sur le Sida et les Hépatites Virales (ANRS), Service d’Hépatologie [Hôpital Beaujon], Hôpital Beaujon [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), CHU Pontchaillou [Rennes], Physiopathologie du système immunitaire (Inserm U1223), Institut Pasteur [Paris] (IP)-Institut National de la Santé et de la Recherche Médicale (INSERM), Université Paris Descartes - Paris 5 (UPD5), Département d'hépatologie [CHU Cochin], Hôpital Cochin [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM), Cellules Souches, Plasticité Cellulaire, Médecine Régénératrice et Immunothérapies (IRMB), Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Montpellier (UM), Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Hôpital Haut-Lévêque [CHU Bordeaux], CHU Bordeaux [Bordeaux], Institut Arnault Tzanck, Centre Hospitalier Lyon Sud [CHU - HCL] (CHLS), Hospices Civils de Lyon (HCL), Hôpital Avicenne [AP-HP], Centre méditerranéen de médecine moléculaire (C3M), Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Côte d'Azur (UCA), Département d'hépato-gastroentérologie, CHU Grenoble-Université Grenoble Alpes (UGA), Service d'Hépato-Gastroentérologie [CHU Rouen], Hôpital Charles Nicolle [Rouen], CHU Rouen, Normandie Université (NU)-Normandie Université (NU)-CHU Rouen, Normandie Université (NU)-Normandie Université (NU)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU), Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM), Pôle Maladies de l'appareil digestif [CHU Toulouse], Centre Hospitalier Universitaire de Toulouse (CHU Toulouse), Pharmacochimie et Biologie pour le Développement (PHARMA-DEV), Institut de Recherche pour le Développement (IRD)-Institut de Chimie de Toulouse (ICT), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT), Service d'hépatologie et de gastroentérologie [Hôpital Saint-Joseph - Marseille], Aix Marseille Université (AMU)-Hôpital Saint-Joseph [Marseille], Hôpital Claude Huriez [Lille], CHU Lille, Hôpital Saint-André, CHU Estaing [Clermont-Ferrand], CHU Clermont-Ferrand, CHU Saint-Antoine [AP-HP], Hôpital Henri Mondor, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Henri Mondor-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), CHU Tenon [AP-HP], Hôpital Paul Brousse, Département d'hépato-gastro-entérologie [Hôpital Trousseau : CHRU Tours], Centre Hospitalier Régional Universitaire de Tours (CHRU Tours), Centre Hospitalier d'Aix en Provence [Aix-en-Provence] (CHIAP ), Service d'Hépato-Gastro-Enterologie et Nutrition [CHU Caen], Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-CHU Caen, Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN)-Tumorothèque de Caen Basse-Normandie (TCBN), Centre Hospitalier Le Mans (CH Le Mans), Centre hospitalier universitaire de Poitiers (CHU Poitiers), Institut Mutualiste de Montsouris (IMM), Institut mutualiste Monsouris (IMM), Centre Hospitalier Universitaire de Reims (CHU Reims), Hôpital Foch [Suresnes], Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon), ANRS CO12 CirVir group : Pierre Nahon, Patrick Marcellin, Dominique Guyader, Stanislas Pol, Hélène Fontaine, Dominique Larrey, Victor De Lédinghen, Denis Ouzan, Fabien Zoulim, Dominique Roulot, Albert Tran, Jean-Pierre Bronowicki, Jean-Pierre Zarski, Vincent Leroy, Ghassan Riachi, Paul Calès, Jean-Marie Péron, Laurent Alric, Marc Bourlière, Philippe Mathurin, Sebastien Dharancy, Jean-Frédéric Blanc, Armand Abergel, Lawrence Serfaty, Ariane Mallat, Jean-Didier Grangé, Pierre Attali, Yannick Bacq, Claire Wartelle, Thông Dao, Yves Benhamou, Christophe Pilette, Christine Silvain, Christos Christidis, Dominique Capron, Gérard Thiefin, Sophie Hillaire, Vincent Di Martino, Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Service de Département de médecine interne et immunologie clinique [CHU Pitié-Salpêtrière] (DMIIC), Institut Pasteur [Paris]-Institut National de la Santé et de la Recherche Médicale (INSERM), Hôpital Charles Nicolle [Rouen]-CHU Rouen, Service de Gastro-entérologie - Hépatologie [Purpan], CHU Toulouse [Toulouse], Institut de Recherche pour le Développement (IRD)-Institut de Chimie de Toulouse (ICT-FR 2599), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, Service d'Hépato-gastro-entérologie [CHU Saint-Antoine], CHU Trousseau [APHP], Service d'Hépato-Gastro-Entérologie [CHU Pitié-Salpêtrière], Service de Néphrologie [CHU Pitié-Salpêtrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Sorbonne Universités, Sorbonne Université - Faculté de Médecine (SU FM), Sorbonne Université (SU), Service de médecine interne et d'immunologie clinique [CHU Pitié-Salpêtrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], ANRS France Recherche Nord & sud Sida-hiv hépatites, Nutrition, Métabolismes et Cancer (NuMeCan), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National de la Santé et de la Recherche Médicale (INSERM), Physiopathologie du système immunitaire, Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Cochin [AP-HP], CHU Saint-Eloi, Centre d'investigation de la fibrose hépatique [CHU de Bordeaux] (Hôpital Haut-Lévêque ), Hôpital Haut-Lévêque [CHU de Bordeaux], Service de Gastro-entérologie [Avicenne], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris 13 (UP13)-Hôpital Avicenne [AP-HP], Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA)-Institut National de la Santé et de la Recherche Médicale (INSERM), Service d'Hépato-gastro-entérologie [CHRU Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Université Joseph Fourier - Grenoble 1 (UJF)-CHU Grenoble, Institut d'oncologie/développement Albert Bonniot de Grenoble (INSERM U823), Université Joseph Fourier - Grenoble 1 (UJF)-CHU Grenoble-EFS-Institut National de la Santé et de la Recherche Médicale (INSERM), Hémodynamique, Interaction Fibrose et Invasivité tumorales Hépatiques (HIFIH), Université d'Angers (UA), Hôpital Purpan [Toulouse], Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Hôpital Claude Huriez, Université de Lille, Droit et Santé-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Physiopathologie du cancer du foie, Université Bordeaux Segalen - Bordeaux 2-Institut National de la Santé et de la Recherche Médicale (INSERM), UMR 6602, Institut Pascal, Université Clermont Auvergne (UCA), Centre National de la Recherche Scientifique (CNRS), SIGMA Clermont, Hépatologie Gastro-Entérologie, Centre Hospitalier Universitaire Estaing, Institut Pascal - Clermont Auvergne (IP), Sigma CLERMONT (Sigma CLERMONT)-Université Clermont Auvergne (UCA)-Centre National de la Recherche Scientifique (CNRS), Service d'hépatologie [Saint-Antoine], Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Institut Mondor de Recherche Biomédicale (IMRB), Institut National de la Santé et de la Recherche Médicale (INSERM)-IFR10-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), UMR INSERM U955, École nationale vétérinaire d'Alfort (ENVA), CHU Tenon [APHP], Onxeo S.A., CHU Trousseau [APHP]-Centre Hospitalier Régional Universitaire de Tours (CHRU TOURS), Service d'Hépato-Gastroentérologie [CHU Pitié-Salpêtrière], Hellenic Open University [Patras], Service d'Hépatogastroentérologie, CHU Amiens-Picardie, Service de Médecine Interne [Hôpital Foch, Suresnes] (SMI), Service d'Hépatologie, Hôpital Jean Minjoz, Centre Hospitalier Universitaire de Besançon, Université de Franche Comté, Hôpital Jean Minjoz, Service d'Explorations Fonctionnelles Neurologie [CHU Pitié-Salpêtrière], Université Sorbonne Paris Cité (USPC), Service de santé publique [Mondor], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Service d'Hépatologie, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris 13 (UP13), Equipe labellisée Ligue Contre le Cancer [Saint-Denis], Université Paris 13 (UP13)-PRES Sorbonne Paris Cité, Service d'hépatologie [CHU Pontchaillou], Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut Pasteur [Paris], Institut National de la Santé et de la Recherche Médicale (INSERM)-Hôpital Cochin [AP-HP], Université de Montpellier (UM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Département de pathologie [Hôpital Haut Lévêque], CHU Bordeaux [Bordeaux]-CHU Bordeaux [Bordeaux], Service d'Hépatologie [Hôtel-Dieu], Hôpital Hôtel-Dieu [Paris], Service d'Hépatologie [Avicenne], Service d'Hépatologie [Nancy], Département d'hépatologie (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM)-PRES Université Nantes Angers Le Mans (UNAM), CHU Toulouse [Toulouse]-Hôpital Purpan [Toulouse], Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie de Toulouse (ICT-FR 2599), Université Fédérale Toulouse Midi-Pyrénées-Institut de Recherche pour le Développement (IRD)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Institut de Recherche pour le Développement (IRD), Service d'hépatologie [CHU Saint-Antoine], Service d'Hépatologie, Hôpital Henri Mondor, AP-HP, Créteil, France., Centre Hospitalier Régional Universitaire de Tours (CHRU TOURS)-CHU Trousseau [APHP], Service de néphrologie [CHU Pitié-Salpêtrière], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Groupe Hospitalier Universitaire Paris Seine-Saint-Denis (GHUPSSD), Université Paris 13 (UP13)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Avicenne [AP-HP], Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Sigma CLERMONT (Sigma CLERMONT)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Institut National de la Santé et de la Recherche Médicale (INSERM), Université Grenoble Alpes (UGA)-CHU Grenoble, Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC), and Centre Hospitalier Régional Universitaire de Tours (CHRU Tours)-CHU Trousseau [APHP]
Subjects: Male, Liver Cirrhosis, Survival rate, Cirrhosis, Biopsy, [SDV]Life Sciences [q-bio], Kaplan-Meier Estimate, Gastroenterology, Severity of Illness Index, Cohort Studies, 0302 clinical medicine, Liver Function Tests, Prevalence, Needle, 030212 general & internal medicine, Myocardial infarction, Chronic, medicine.diagnostic_test, Biopsy, Needle, Hepatitis C, Middle Aged, Prognosis, Immunohistochemistry, 3. Good health, Cardiovascular Diseases, Predictive value of tests, 030211 gastroenterology & hepatology, Female, France, Cardiology and Cardiovascular Medicine, medicine.medical_specialty, Antiviral Agents, Risk Assessment, 03 medical and health sciences, Age Distribution, Predictive Value of Tests, Internal medicine, medicine, Humans, cardiovascular diseases, Sex Distribution, Aged, Proportional Hazards Models, Retrospective Studies, business.industry, Hepatitis C, Chronic, medicine.disease, Heart failure, business, Liver function tests, Mace
Abstract: International audience; BACKGROUND: The objective was to examine the role of a sustained virological response (SVR) on major adverse cardiovascular events (MACEs) in patients with compensated hepatitis C virus (HCV) cirrhosis.METHODS: Patients with the following criteria were enrolled in 35 French centers: (1) biopsy-proven HCV cirrhosis; (2) Child-Pugh A; (3) positive viremia; and (4) no prior liver complication, and then prospectively followed. All patients received HCV treatment after inclusion. MACEs included stroke, myocardial infarction, ischemic heart disease, heart failure, peripheral arterial disease, cardiac arrest, and cardiovascular death. SVR, defined as negative viremia 12 weeks posttreatment, was considered as a time-dependent covariate, and its effect on MACE occurrence was assessed. The median follow up was 57.5 months, ending in December 2015.RESULTS: Sixty-two of 878 (7.1%) patients presented a total of 79 MACEs. The main predictive baseline factors of MACEs were Asian ethnic origin, history of MACEs, arterial hypertension, diabetes mellitus, current smoking, low serum albumin level, high total bilirubin level, and low platelet count. In multivariate analysis, SVR was associated with a decreased risk of MACEs (hazard ratio=0.35, 95% CI 0.09-0.97, P=.044), whereas Asian ethnic origin, arterial hypertension, smoking, and low serum albumin level remained predictive of MACE occurrence. The 5-year survival rate was 60.1% versus 87.5% in patients who did versus those who did not present a MACE (PCONCLUSIONS: In patients with compensated HCV-related cirrhosis, Asian ethnic origin, arterial hypertension, smoking, and low serum albumin are independent predictive factors of cardiovascular events, whereas an SVR is associated with a decreased rate of cardiovascular events.
Published: 2018

34. T fr cells lack IL-2Rα but express decoy IL-1R2 and IL-1Ra and suppress the IL-1–dependent activation of T fh cells

Author: David Klatzmann, Valentin Quiniou, Laura Florez, Encarnita Mariotti-Ferrandiz, Faustine Brimaud, Paul-Gydeon Ritvo, Gwladys Fourcade, Guillame Churlaud, Immunologie - Immunopathologie - Immunothérapie (I3), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Service de biothérapies [CHU Pitié-Salpétrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), KLATZMANN, DAVID, Immunologie - Immunopathologie - Immunothérapie [CHU Pitié Salpêtrière] (I3), CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP]
Subjects: 0301 basic medicine, CD40, biology, [SDV]Life Sciences [q-bio], Immunology, General Medicine, Natural killer T cell, 3. Good health, Cell biology, [SDV] Life Sciences [q-bio], 03 medical and health sciences, Interleukin 21, 030104 developmental biology, 0302 clinical medicine, medicine.anatomical_structure, biology.protein, Interleukin 12, medicine, Cytotoxic T cell, IL-2 receptor, Antigen-presenting cell, B cell, ComputingMilieux_MISCELLANEOUS, 030215 immunology
Abstract: International audience; Follicular regulatory T (Tfr) cells from lymph node germinal centers control follicular helper T (Tfh) cell-dependent B cell activation. These scarce cells, often described and purified as CD25+ cells, are thought to be derived from thymic regulatory T (Treg) cells. However, we observed that mouse Tfr cells do not respond to interleukin-2 (IL-2), unlike Treg cells. Stringent immunophenotyping based on B cell lymphoma 6 (Bcl6), programmed cell death protein 1 (PD-1), and CXCR5 expression revealed that Tfr cells are actually CD25-, in mice and humans. Moreover, Tfr cell characterization based only on CXCR5 and PD-1 high expression without excluding CD25+ cells resulted in contamination with Treg cells. Transcriptome studies of CD4+CXCR5+PD-1+Bcl6+Foxp3+CD25- Tfr cells revealed that they express the IL-1 decoy receptor IL-1R2 and the IL-1 receptor antagonist IL-1Ra, whereas Tfh cells express the IL-1R1 agonist receptor. IL-1 treatment expanded Tfh cells in vivo and activated their production of IL-4 and IL-21 in vitro. Tfr cells suppressed the IL-1-induced activation of Tfh cells as efficiently as the IL-1 receptor antagonist Anakinra. Altogether, these results reveal an IL-1 axis in the Tfh cell control of B cell responses and an IL-2/IL-1 dichotomy for Treg cell control of effector T cells versus Tfr cell control of Tfh cells.
Published: 2017

35. Reply: Beneficial effect of interleukin-2-based immunomodulation in Alzheimer-like pathology

Author: David Klatzmann, Sandro Alves, Nathalie Cartier, Guillaume Churlaud, Thérapie génique, Génomique et Epigénomique (U 1169), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris-Saclay, CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), KLATZMANN, DAVID, Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Université Pierre et Marie Curie - Paris 6 (UPMC)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Service de biothérapies [CHU Pitié-Salpétrière], Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Université Pierre et Marie Curie - Paris 6 (UPMC), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Pierre et Marie Curie - Paris 6 (UPMC), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], and Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)
Subjects: 0301 basic medicine, Interleukin 2, [SDV.MHEP] Life Sciences [q-bio]/Human health and pathology, business.industry, Amyloidosis, 3. Good health, Immunomodulation, Mice, 03 medical and health sciences, 030104 developmental biology, 0302 clinical medicine, Alzheimer Disease, Memory, Immunology, Animals, Interleukin-2, Medicine, Neurology (clinical), business, 030217 neurology & neurosurgery, ComputingMilieux_MISCELLANEOUS, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology, medicine.drug
Abstract: International audience; No abstract available
Published: 2017

36. Effect of intracoronary administration of AAV1/SERCA2a on ventricular remodelling in patients with advanced systolic heart failure: results from the AGENT-HF randomized phase 2 trial

Author: Hulot , Jean-Sébastien, Salem , Joe-Elie, Redheuil , Alban, Collet , Jean-Philippe, Varnous , Shaida, Jourdain , Patrick, Logeart , Damien, Gandjbakhch , Estelle, Bernard , Claude, Hatem , Stéphane N., Isnard , Richard, Cluzel , Philippe, Le Feuvre , Claude, Leprince , Pascal, Hammoudi , Nadjib, Lemoine , François M., Klatzmann , David, Vicaut , Eric, Komajda , Michel, Montalescot , Gilles, Lompré , Anne-Marie, Hajjar , Roger J., Unité de Recherche sur les Maladies Cardiovasculaires, du Métabolisme et de la Nutrition = Institute of cardiometabolism and nutrition (ICAN), Université Pierre et Marie Curie - Paris 6 (UPMC)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), Service de radiologie cardio-vasculaire [CHU HEGP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Européen Georges Pompidou [APHP] (HEGP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO)-Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO), Service de Chirurgie cardiaque et thoracique [CHU Pitié-Salpêtrière], CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Neslé, Biomarqueurs CArdioNeuroVASCulaires (BioCANVAS), Université Paris 13 (UP13)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de la Santé et de la Recherche Médicale (INSERM), Laboratoire de thermodynamique et physico-chimie métallurgiques (LTPCM), Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS), U956, Institut National de la Santé et de la Recherche Médicale (INSERM), Service de Radiologie Polyvalente Diagnostique et Interventionnelle [CHU Pitié-Salpêtrière], Université Pierre et Marie Curie - Paris 6 (UPMC)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], Institut de cardiologie [CHU Pitié-Salpêtrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], Service d'Hématologie clinique [CHU Pitié-Salpêtrière], Centre d'Immunologie et de Maladies Infectieuses (CIMI), Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Pierre et Marie Curie - Paris 6 (UPMC), Service de biothérapies [CHU Pitié-Salpétrière], Unité de Recherche Clinique, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Lariboisière-Fernand-Widal [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Génomique cardiovasculaire, Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM), Physiopathologie, génétique et pharmacologie du remodelage cardiovasculaire, Université Pierre et Marie Curie - Paris 6 (UPMC)-IFR14-Institut National de la Santé et de la Recherche Médicale (INSERM), KLATZMANN, DAVID, Unité de Recherche sur les Maladies Cardiovasculaires, du Métabolisme et de la Nutrition = Research Unit on Cardiovascular and Metabolic Diseases (ICAN), Centre d'investigation clinique Paris Est [CHU Pitié Salpêtrière] (CIC Paris-Est), Centre d'investigation clinique pluridisciplinaire [CHU Pitié Salpêtrière] (CIC-P 1421), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Centre Hospitalier René Dubos [Pontoise], Marqueurs cardiovasculaires en situation de stress (MASCOT (UMR_S_942 / U942)), Université Paris-Sud - Paris 11 (UP11)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Groupe Hospitalier Saint Louis - Lariboisière - Fernand Widal [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Centre National de la Recherche Scientifique (CNRS)-Université Sorbonne Paris Nord, Hôpital Lariboisière-Fernand-Widal [APHP], Centre d'investigation clinique Biothérapie [CHU Pitié-Salpêtrière] (CIC-BTi), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Icahn School of Medicine at Mount Sinai [New York] (MSSM), AGENT-HF Investigators, Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Unité de Recherche sur les Maladies Cardiovasculaires, du Métabolisme et de la Nutrition = Institute of cardiometabolism and nutrition ( ICAN ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Assistance publique - Hôpitaux de Paris (AP-HP)-Institut National de la Santé et de la Recherche Médicale ( INSERM ) -CHU Pitié-Salpêtrière [APHP], Assistance publique - Hôpitaux de Paris (AP-HP)-Hôpital Européen Georges Pompidou [APHP] ( HEGP ), Service de chirurgie cardiaque et thoracique [CHU Pitié-Salpêtrière], Assistance publique - Hôpitaux de Paris (AP-HP)-CHU Pitié-Salpêtrière [APHP], Biomarqueurs CArdioNeuroVASCulaires ( BioCANVAS ), Université Paris 13 ( UP13 ) -Université Paris Diderot - Paris 7 ( UPD7 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ), Laboratoire de thermodynamique et physico-chimie métallurgiques ( LTPCM ), Institut National Polytechnique de Grenoble ( INPG ) -Centre National de la Recherche Scientifique ( CNRS ), Institut National de la Santé et de la Recherche Médicale ( INSERM ), Service de Radiologie Polyvalente Diagnostique et Interventionnelle, Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Assistance publique - Hôpitaux de Paris (AP-HP)-CHU Pitié-Salpêtrière [APHP], Service d'Hématologie Clinique [CHU Pitié-Salpêtrière], Centre d'Immunologie et de Maladies Infectieuses ( CIMI ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Centre National de la Recherche Scientifique ( CNRS ), Assistance publique - Hôpitaux de Paris (AP-HP)-Hôpital Lariboisière, Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ), and Université Pierre et Marie Curie - Paris 6 ( UPMC ) -IFR14-Institut National de la Santé et de la Recherche Médicale ( INSERM )
Subjects: Male, [SDV.MHEP] Life Sciences [q-bio]/Human health and pathology, Ventricular Remodeling, Heart failure, Genetic Therapy, Middle Aged, Coronary Vessels, Sarcoplasmic Reticulum Calcium-Transporting ATPases, Clinical trial, Sarcoplasmic reticulum calcium ATPase, Treatment Outcome, Gene therapy, Double-Blind Method, [ SDV.MHEP ] Life Sciences [q-bio]/Human health and pathology, Humans, Infusions, Intra-Arterial, Female, ComputingMilieux_MISCELLANEOUS, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology, Aged, Heart Failure, Systolic
Abstract: International audience; Aims: Restoration of sarco/endoplasmic reticulum Ca2+ ATPase (SERCA2a) activity through gene transfer improved cardiac function in experimental and pilot studies in humans with heart failure. The AGENT-HF (NCT01966887) trial investigated the impact of adeno-associated virus (AAV1)/SERCA2a on ventricular remodelling using multimodality non-invasive cardiac imaging.Methods and results: AGENT-HF was a single centre, randomized, double-blind, placebo-controlled trial in adult patients with NYHA class III-IV ischaemic or non-ischaemic heart failure and left ventricular ejection fraction ≤35%. Eligible patients were randomized to receive a single intracoronary infusion of either 1 × 1013 DNase-resistant particles of AAV1/SERCA2a or placebo. The primary endpoint was change in left ventricular end-systolic volume (LVESV), measured by cardiac computed tomography at 6 month follow-up. We planned to include 40 patients but the trial was terminated prematurely as the sponsor suspended further enrolment following neutral results of the CUPID-2 outcome trial. At the time of termination, nine patients were randomized with five patients infused with AAV1/SERCA2a and four with placebo. At 6 months, LVESV was increased in both groups compared with baseline: median (interquartile range) in AAV1/SERCA2a vs. placebo: 13 (13;14) mL vs. 3.5 (-36;36) mL, P = 0.74, with a mean difference between groups of 11.4 mL in favour of placebo. No safety issues were noted.Conclusion: AGENT-HF failed to demonstrate any improvement in ventricular remodelling in response to AAV1/SERCA2a at the dose studied. However, because of premature termination, the study was underpowered to demonstrate an effect of AAV1/SERCA2a and these data should be interpreted with caution.
Published: 2017

37. The early pregnancy placenta foreshadows dna methylation alterations of solid tumors

Author: David Klatzmann, Djamel Nehar-Belaid, Dominique Bellet, Thierry Fournier, Virginie Dangles-Marie, Martin J. Aryee, Akpeli V. Nordor, Sophie Richon, Unité de Technologies Chimiques et Biologiques pour la Santé (UTCBS - UM 4 (UMR 8258 / U1022)), Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Immunologie - Immunopathologie - Immunothérapie [CHU Pitié Salpêtrière] (I3), CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Genetique et Biotherapies des Maladies Degeneratives et Proliferatives du Systeme Nerveux (Inserm U745), Institut des sciences du Médicament -Toxicologie - Chimie - Environnement (IFR71), Institut National de la Santé et de la Recherche Médicale (INSERM)-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Paris Descartes - Paris 5 (UPD5)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Service de biothérapies [CHU Pitié-Salpétrière], Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Département de Recherche Translationnelle, Institut Curie [Paris], Université Paris Descartes - Faculté de Pharmacie de Paris (UPD5 Pharmacie), Université Paris Descartes - Paris 5 (UPD5), Physiopathologie et Pharmacotoxicologie Placentaire Humaine (U1139), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Massachusetts General Hospital [Boston], Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), Institut de Recherche pour le Développement (IRD)-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], KLATZMANN, DAVID, CHU Pitié-Salpêtrière [AP-HP], Genetique et Biotherapies des Maladies Degeneratives et Proliferatives du Systeme Nerveux ( Inserm U745 ), Institut des sciences du Médicament -Toxicologie - Chimie - Environnement ( IFR71 ), Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Ecole Nationale Supérieure de Chimie de Paris- Chimie ParisTech-PSL ( ENSCP ) -Centre National de la Recherche Scientifique ( CNRS ) -Institut de Recherche pour le Développement ( IRD ) -Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Ecole Nationale Supérieure de Chimie de Paris- Chimie ParisTech-PSL ( ENSCP ) -Centre National de la Recherche Scientifique ( CNRS ) -Institut de Recherche pour le Développement ( IRD ) -Université Paris Descartes - Paris 5 ( UPD5 ) -Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ), Assistance publique - Hôpitaux de Paris (AP-HP)-CHU Pitié-Salpêtrière [APHP], Laboratoire de génétique moléculaire, Université Paris Descartes - Paris 5 ( UPD5 ) -Centre National de la Recherche Scientifique ( CNRS ), INSTITUT CURIE, La grossesse normale et pathologique: développement et fonctions du placenta et de l'utérus ( UMR_S 767 ), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], and Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Descartes - Paris 5 (UPD5)
Subjects: 0301 basic medicine, Cancer Research, medicine.disease_cause, Epigenesis, Genetic, Pregnancy, ComputingMilieux_MISCELLANEOUS, Epigenomics, DNA methylation, [SDV.MHEP] Life Sciences [q-bio]/Human health and pathology, CANCER, 3. Good health, Gene Expression Regulation, Neoplastic, medicine.anatomical_structure, Pregnancy Trimester, Second, embryonic structures, Chorionic villi, GROWTH, Female, Research Paper, GENES, placenta, [SDV.CAN]Life Sciences [q-bio]/Cancer, Biology, 03 medical and health sciences, TROPHOBLAST, [SDV.CAN] Life Sciences [q-bio]/Cancer, INFLAMMATION, [ SDV.MHEP ] Life Sciences [q-bio]/Human health and pathology, Placenta, medicine, Humans, Neoplastic transformation, 5-METHYLCYTOSINE, Epigenetics, REGULATORY T-CELLS, Molecular Biology, PURIFICATION, epigenetics, Carcinoma, Placentation, Pregnancy Trimester, First, 030104 developmental biology, Immunology, epigenomics, Cancer research, HYPOMETHYLATED BLOCKS, IMPLANTATION, Carcinogenesis, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology, hypomethylation
Abstract: International audience; The placenta relies on phenotypes that are characteristic of cancer to successfully implant the embryo in the uterus during early pregnancy. Notably, it has to invade its host tissues, promote angiogenesis—while surviving hypoxia—, and escape the immune system. Similarities in DNA methylation patterns between the placenta and cancers suggest that common epigenetic mechanisms may be involved in regulating these behaviors. We show here that megabase-scale patterns of hypomethylation distinguish first from third trimester chorionic villi in the placenta, and that these patterns mirror those that distinguish many tumors from corresponding normal tissues. We confirmed these findings in villous cytotrophoblasts isolated from the placenta and identified a time window at the end of the first trimester, when these cells come into contact with maternal blood, as the likely time period for the methylome alterations. Furthermore, the large genomic regions affected by these patterns of hypomethylation encompass genes involved in pathways related to epithelial-mesenchymal transition, immune response, and inflammation. Analyses of expression profiles corresponding to genes in these hypomethylated regions in colon adenocarcinoma tumors point to networks of differentially expressed genes previously implicated in carcinogenesis and placentogenesis, where nuclear factor kappa B is a key hub. Taken together, our results suggest the existence of epigenetic switches involving large-scale changes of methylation in the placenta during pregnancy and in tumors during neoplastic transformation. The characterization of such epigenetic switches might lead to the identification of biomarkers and drug targets in oncology as well as in obstetrics and gynecology.
Published: 2017

38. Low-Dose IL-2 Induces Regulatory T Cell–Mediated Control of Experimental Food Allergy

Author: Faustine Brimaud, Fabien Pitoiset, Thomas Vazquez, David Klatzmann, Guillaume Churlaud, Bertrand Bellier, James Vigneron, Benjamin Bonnet, Béatrice Levacher, Immunologie - Immunopathologie - Immunothérapeutique (I3), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Pierre et Marie Curie - Paris 6 (UPMC), Immunologie - Immunopathologie - Immunothérapie (I3), Service de biothérapies [CHU Pitié-Salpétrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], KLATZMANN, DAVID, Université Pierre et Marie Curie - Paris 6 (UPMC)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP]
Subjects: 0301 basic medicine, Allergy, Arachis, Regulatory T cell, Ovalbumin, medicine.medical_treatment, [SDV]Life Sciences [q-bio], Immunology, chemical and pharmacologic phenomena, T-Lymphocytes, Regulatory, 03 medical and health sciences, Mice, 0302 clinical medicine, Immune system, Food allergy, medicine, Immunology and Allergy, Animals, Humans, Mast Cells, Th1-Th2 Balance, Cells, Cultured, ComputingMilieux_MISCELLANEOUS, Cell Proliferation, Mice, Inbred BALB C, [SDV.MHEP] Life Sciences [q-bio]/Human health and pathology, business.industry, Immunosuppression, Allergens, medicine.disease, Mast cell, 3. Good health, [SDV] Life Sciences [q-bio], Disease Models, Animal, 030104 developmental biology, medicine.anatomical_structure, Self Tolerance, Interleukin-2, Female, Immunotherapy, business, Food Hypersensitivity, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology, 030215 immunology
Abstract: Regulatory T cells (Tregs) are pivotal for maintenance of immune self-tolerance and also regulate immune responses to exogenous Ags, including allergens. Both decreased Treg number and function have been reported in allergic patients, offering new therapeutic perspectives. We previously demonstrated that Tregs can be selectively expanded and activated by low doses of IL-2 (ld-IL-2) inducing immunoregulation without immunosuppression and established its protective effect in autoimmune diseases. In this study, we evaluated the ability of ld-IL-2 to control allergy in an experimental model of food allergy. Ld-IL-2 induced Treg expansion and activation that elicited protection against clinical manifestations of food allergy in two mouse models with OVA and peanut. This clinical effect was lost in Treg-depleted mice, demonstrating the major contribution of Tregs in ld-IL-2 efficacy. Mechanistic studies further indicated that protection from allergy could be explained by a Treg-dependent local modification of the Th1/Th2 balance and an inhibition of mast cell recruitment and activation. Preventive and therapeutic effects of ld-IL-2 were observed over a 7-mo-period, highlighting its long-term efficacy. This study demonstrated that ld-IL-2 is efficient to prevent and to treat allergic immune responses, and thus represents a promising therapeutic strategy for managing allergic diseases.
Published: 2016

39. TGF-β and VEGF cooperatively control the immunotolerant tumor environment and the efficacy of cancer immunotherapies

Author: Tristan Courau, Faustine Brimaud, Bertrand Bellier, Djamel Nehar-Belaid, Thomas Vazquez, Béatrice Levacher, David Klatzmann, Laura Florez, Immunologie - Immunopathologie - Immunothérapie (I3), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Immunologie - Immunopathologie - Immunothérapeutique (I3), Service de biothérapies [CHU Pitié-Salpétrière], Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), KLATZMANN, DAVID, Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], and CHU Pitié-Salpêtrière [AP-HP]
Subjects: 0301 basic medicine, Vascular Endothelial Growth Factor A, T cell, medicine.medical_treatment, [SDV]Life Sciences [q-bio], Cell, Biology, T-Lymphocytes, Regulatory, Immune tolerance, 03 medical and health sciences, Mice, 0302 clinical medicine, Immune system, Downregulation and upregulation, Transforming Growth Factor beta, Cell Line, Tumor, Neoplasms, medicine, Immune Tolerance, Gene silencing, Animals, Gene Silencing, ComputingMilieux_MISCELLANEOUS, Mice, Inbred BALB C, [SDV.MHEP] Life Sciences [q-bio]/Human health and pathology, General Medicine, Immunotherapy, Transforming growth factor beta, 3. Good health, [SDV] Life Sciences [q-bio], Mice, Inbred C57BL, 030104 developmental biology, medicine.anatomical_structure, 030220 oncology & carcinogenesis, Immunology, Cancer research, biology.protein, Female, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology, Research Article
Abstract: Tregs imprint an early immunotolerant tumor environment that prevents effective antitumor immune responses. Using transcriptomics of tumor tissues, we identified early upregulation of VEGF and TGF-β pathways compatible with tolerance imprinting. Silencing of VEGF or TGF-β in tumor cells induced early and pleiotropic modulation of immune-related transcriptome signatures in tumor tissues. These were surprisingly similar for both silenced tumors and related to common downstream effects on Tregs. Silencing of VEGF or TGF-β resulted in dramatically delayed tumor growth, associated with decreased Tregs and myeloid-derived suppressor cells and increased effector T cell activation in tumor infiltrates. Strikingly, co-silencing of TGF-β and VEGF led to a substantial spontaneous tumor eradication rate and the combination of their respective inhibitory drugs was synergistic. VEGF and/or TGF-β silencing also restored tumor sensitivity to tumor-specific cell therapies and markedly improved the efficacy of anti-PD-1/anti-CTLA-4 treatment. Thus, TGF-β and VEGF cooperatively control the tolerant environment of tumors and are targets for improved cancer immunotherapies.
Published: 2016

40. Calcium-phosphate ceramics and polysaccharide-based hydrogel scaffolds combined with mesenchymal stem cell differently support bone repair in rats

Author: Sophie Frasca, Catherine Le Visage, Elhadi Sari Ali, Jean-Marc Collombet, Xavier Holy, Didier Letourneur, Françoise Norol, Institut de Recherche Biomédicale des Armées (IRBA), Service de biothérapies [CHU Pitié-Salpétrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Laboratoire d'ingénierie osteo-articulaire et dentaire (LIOAD), Université de Nantes (UN)-IFR26-Institut National de la Santé et de la Recherche Médicale (INSERM), Laboratoire de Recherche Vasculaire Translationnelle (LVTS (UMR_S_1148 / U1148)), Université Paris 13 (UP13)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Jehan, Frederic, Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP]
Subjects: 0301 basic medicine, Calcium Phosphates, Male, Ceramics, Materials science, Bone Regeneration, Tissue Engineering Constructs and Cell Substrates, Biomedical Engineering, Biophysics, Bioengineering, Biocompatible Materials, Bone Marrow Cells, 02 engineering and technology, Bone healing, Bone resorption, Biomaterials, 03 medical and health sciences, Tissue engineering, Polysaccharides, Animals, Femur, Bone Resorption, Bone regeneration, [SDV.MHEP.RSOA] Life Sciences [q-bio]/Human health and pathology/Rhumatology and musculoskeletal system, Bone Transplantation, [SDV.MHEP.GEG] Life Sciences [q-bio]/Human health and pathology/Geriatry and gerontology, Neovascularization, Pathologic, Tissue Engineering, Tissue Scaffolds, [SDV.MHEP.GEG]Life Sciences [q-bio]/Human health and pathology/Geriatry and gerontology, Mesenchymal stem cell, Hydrogels, Mesenchymal Stem Cells, X-Ray Microtomography, 021001 nanoscience & nanotechnology, Resorption, Rats, 030104 developmental biology, [SDV.MHEP.RSOA]Life Sciences [q-bio]/Human health and pathology/Rhumatology and musculoskeletal system, Rats, Inbred Lew, Self-healing hydrogels, Chemical Engineering(all), Stem cell, 0210 nano-technology, Biomedical engineering
Abstract: International audience; Research in bone tissue engineering is focused on the development of alternatives to autologous bone grafts for bone reconstruction. Although multiple stem cell-based products and biomaterials are currently being investigated, comparative studies are rarely achieved to evaluate the most appropriate approach in this context. Here, we aimed to compare different clinically relevant bone tissue engineering methods and evaluated the kinetic repair and the bone healing efficiency supported by mesenchymal stem cells and two different biomaterials, a new hydrogel scaffold and a commercial hydroxyapatite/tricalcium phosphate ceramic, alone or in combination. Syngeneic mesenchymal stem cells (5 × 10 5) and mac-roporous biphasic calcium phosphate ceramic granules (Calciresorb C35 ® , Ceraver) or porous pullulan/dextran-based hydrogel scaffold were implanted alone or combined in a drilled-hole bone defect in rats. Using quantitative microtomography measurements and qualitative histologi-cal examinations, their osteogenic properties were evaluated 7, 30, and 90 days after implantation. Three months after surgery, only minimal repair was evidenced in control rats while newly mineralized bone was massively observed in animals treated with either hydrogels (bone volume/tissue volume = 20%) or ceramics (bone volume/tissue volume = 26%). Repair mechanism and resorption kinetics were strikingly different: rapidly-resorbed hydrogels induced a dense bone mineralization from the edges of the defect while ceramics triggered newly woven bone formation in close contact with the ceramic surface that remained unre-sorbed. Delivery of mesenchymal stem cells in combination with these biomaterials enhanced both bone healing (>20%) and neovascularization after 1 month, mainly in hydrogel. Osteogenic and angiogenic properties combined with rapid resorption make hydrogels a promising alternative to ceramics for bone repair by cell therapy.
Published: 2016

41. Treatment times, functional outcome, and hemorrhage rates after switching to tenecteplase for stroke thrombolysis: Insights from the TETRIS registry

Author: Gaspard Gerschenfeld, Jean-Sébastien Liegey, François-Xavier Laborne, Marion Yger, Victoire Lyon, Thomas Checkouri, Bertille Tricard-Dessagne, Gaultier Marnat, Frédéric Clarençon, Nicolas Chausson, Guillaume Turc, Igor Sibon, Sonia Alamowitch, Stéphane Olindo, Service d'Urgences Cérébro-Vasculaires [CHU Pitié-Salpêtrière], CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Infrastructure de recherche clinique en psychiatrie adulte [ICM Paris] (iCRIN psychiatrie), Institut du Cerveau = Paris Brain Institute (ICM), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Département Médico-Universitaire Neurosciences [Sorbonne Université] (DMU Neurosciences), CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Tenon [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Rothschild [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Tenon [AP-HP], CHU Bordeaux [Bordeaux], Centre Hospitalier Sud Francilien, Sorbonne Université (SU), Institut de psychiatrie et neurosciences de Paris (IPNP - U1266 Inserm), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), GHU Paris Psychiatrie et Neurosciences, Centre de Recherche Saint-Antoine (CRSA), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU), Service de neurologie [Bordeaux], CHU Bordeaux [Bordeaux]-Groupe hospitalier Pellegrin, and Gerschenfeld, Gaspard
Subjects: thrombolysis, Ischemic stroke, [SDV.MHEP] Life Sciences [q-bio]/Human health and pathology, tenecteplase, process times, Original Research Articles, Neurology (clinical), acute stroke therapy, Cardiology and Cardiovascular Medicine, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract: Introduction: The encouraging efficacy and safety data on intravenous thrombolysis with tenecteplase in ischemic stroke and its practical advantages motivated our centers to switch from alteplase to tenecteplase. We report its impact on treatment times and clinical outcomes. Methods: We retrospectively analyzed clinical and procedural data of patients treated with alteplase or tenecteplase in a comprehensive (CSC) and a primary stroke center (PSC), which transitioned respectively in 2019 and 2018. Tenecteplase enabled in-imaging thrombolysis in the CSC. The main outcomes were the imaging-to-thrombolysis and thrombolysis-to-puncture times. We assessed the association of tenecteplase with 3-month functional independence and parenchymal hemorrhage (PH) with multivariable logistic models. Results: We included 795 patients, 387 (48.7%) received alteplase and 408 (51.3%) tenecteplase. Both groups (tenecteplase vs alteplase) were similar in terms of age (75 vs 76 years), baseline NIHSS score (7 vs 7.5) and proportion of patients treated with mechanical thrombectomy (24.1% vs 27.5%). Tenecteplase patients had shorter imaging-to-thrombolysis times (27 vs 36 min, p a 1.68, 95% CI 1.15–2.48, p a 0.68, 95% CI 0.41–1.12, p = 0.13). Conclusion: Switch from alteplase to tenecteplase reduced process times and may improve functional outcome, with similar safety profile.
Published: 2022

42. Diagnostic workup of childhood interstitial lung disease

Author: Nathan, Nadia, Griese, Matthias, Michel, Katarzyna, Carlens, Julia, Gilbert, Carlee, Emiralioglu, Nagehan, Torrent-Vernetta, Alba, Marczak, Honorata, Willemse, Brigitte, Delestrain, Céline, Epaud, Ralph, Universitat Autònoma de Barcelona, Institut Català de la Salut, [Nathan N] AP-HP, Sorbonne Université, Pediatric Pulmonology Department and Reference Center for Rare Lung Disease RespiRare, Armand Trousseau Hospital, Paris, France. Sorbonne Université, Inserm Laboratory of Childhood Genetic Diseases, Armand Trousseau Hospital, Paris, France. [Griese M, Michel K] Department of Paediatric Pneumology, Dr von Hauner Children’s Hospital, German Centre for Lung Research, University of Munich, Munich, Germany. [Carlens J] Clinic for Pediatric Pneumology, Hannover Medical School, Hannover, Germany. [Gilbert C] Institute of Population Health, University of Liverpool, Liverpool, UK. [Emiralioglu N] Department of Pediatric Pulmonology, Hacettepe University Faculty of Medicine, Ankara, Turkey. [Torrent-Vernetta A] Unitat de Pneumologia Pediàtrica i Fibrosi Quística, Servei de Pediatria, Vall d’Hebron Hospital Universitari, Barcelona, Spain. Universitat Autònoma de Barcelona, Bellaterra, Spain. Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III (ISCIII), Madrid, Spain, Vall d'Hebron Barcelona Hospital Campus, Service de Pneumologie pédiatrique [CHU Trousseau], CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Centre de référence national pour les maladies respiratoires rares de l’enfant RespiRare [CHU Trousseau], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Maladies génétiques d'expression pédiatrique [CHU Trousseau] (Inserm U933), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Trousseau [APHP], Dr von Hauner Children's Hospital [Munich, Germany], Ludwig-Maximilians-Universität München (LMU), Hannover Medical School [Hannover] (MHH), University of Liverpool, Hacettepe University = Hacettepe Üniversitesi, Faculty of Medicine [Hacettepe University], Universitat Autònoma de Barcelona (UAB), CIBER de Enfermedades Raras (CIBERER), Medical University of Warsaw - Poland, University of Groningen [Groningen], Centre Hospitalier Intercommunal de Créteil (CHIC), Institut Mondor de Recherche Biomédicale (IMRB), Institut National de la Santé et de la Recherche Médicale (INSERM)-IFR10-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), and Couvet, Sandrine
Subjects: Pulmonary and Respiratory Medicine, Rentada broncoalveolar, técnicas de investigación::irrigación terapéutica::lavado broncoalveolar [TÉCNICAS Y EQUIPOS ANALÍTICOS, DIAGNÓSTICOS Y TERAPÉUTICOS], Respiratory Tract Diseases::Lung Diseases::Lung Diseases, Interstitial [DISEASES], diagnóstico::técnicas y procedimientos diagnósticos::diagnóstico por imagen [TÉCNICAS Y EQUIPOS ANALÍTICOS, DIAGNÓSTICOS Y TERAPÉUTICOS], Otros calificadores::/diagnóstico [Otros calificadores], Investigative Techniques::Therapeutic Irrigation::Bronchoalveolar Lavage [ANALYTICAL, DIAGNOSTIC AND THERAPEUTIC TECHNIQUES, AND EQUIPMENT], personas::Grupos de Edad::niño [DENOMINACIONES DE GRUPOS], Persons::Age Groups::Child [NAMED GROUPS], [SDV.MHEP.PSR]Life Sciences [q-bio]/Human health and pathology/Pulmonology and respiratory tract, Diagnosis::Diagnostic Techniques and Procedures::Diagnostic Imaging [ANALYTICAL, DIAGNOSTIC AND THERAPEUTIC TECHNIQUES, AND EQUIPMENT], enfermedades respiratorias::enfermedades pulmonares::enfermedades pulmonares intersticiales [ENFERMEDADES], Pulmons - Càncer - Diagnòstic, Other subheadings::/diagnosis [Other subheadings], [SDV.MHEP.PSR] Life Sciences [q-bio]/Human health and pathology/Pulmonology and respiratory tract, Infants, Imatgeria per al diagnòstic
Abstract: Childhood interstitial lung diseases (chILDs) are rare and heterogeneous diseases with significant morbidity and mortality. An accurate and quick aetiological diagnosis may contribute to better management and personalised treatment. On behalf of the European Respiratory Society Clinical Research Collaboration for chILD (ERS CRC chILD-EU), this review summarises the roles of the general paediatrician, paediatric pulmonologists and expert centres in the complex diagnostic workup. Each patient's aetiological chILD diagnosis must be reached without prolonged delays in a stepwise approach from medical history, signs, symptoms, clinical tests and imaging, to advanced genetic analysis and specialised procedures including bronchoalveolar lavage and biopsy, if necessary. Finally, as medical progress is fast, the need to revisit a diagnosis of "undefined chILD" is stressed. Childhood interstitial lung diseases are rare and severe diseases. A stepwise approach to an aetiological diagnosis includes specific investigations performed in expert centres. The term "undefined chILD" must be regularly reassessed
Published: 2023

43. Sofosbuvir plus ribavirin for hepatitis C virus-associated cryoglobulinaemia vasculitis: VASCUVALDIC study

Author: Magali Le Garff-Tavernier, Maxime Mallet, Thierry Poynard, Aurélie Plaisier, Hélène Fontaine, Si Nafa Si Ahmed, Laurent Alric, Stanislas Pol, Patrice Cacoub, Hassane Izzedine, Myrto Costopoulos, Christophe Hézode, David Saadoun, Constance Guillaud, Vincent Thibault, Lucile Musset, Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Immunologie - Immunopathologie - Immunothérapie [CHU Pitié Salpêtrière] (I3), CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Service de Département de médecine interne et immunologie clinique [CHU Pitié-Salpêtrière] (DMIIC), CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Service de virologie [CHU Pitié-Salpêtrière], Centre Hospitalier Régional d'Orléans (CHRO), Pharmacochimie et Biologie pour le Développement (PHARMA-DEV), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie de Toulouse (ICT-FR 2599), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut de Chimie du CNRS (INC)-Institut de Recherche pour le Développement (IRD), Hôpital Purpan [Toulouse], CHU Toulouse [Toulouse], Service d'Hépato-Gastro-Entérologie [CHU Pitié-Salpêtrière], Service de médecine interne [Mondor], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Henri Mondor-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Service de Néphrologie [CHU Pitié-Salpêtrière], Service d’Hépatologie [Hôpital Beaujon], Hôpital Beaujon [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Département d'hépatologie [CHU Cochin], Institut National de la Santé et de la Recherche Médicale (INSERM)-Hôpital Cochin [AP-HP], Service d'Hématologie Biologique [CHU Pitié-Salpêtrière], CHU Henri Mondor, Unité fonctionnelle d’Auto-immunité et Immunochimie [CHU Pitié-Salpêtrière], Service d'Immunologie [CHU Pitié-Salpétrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Service de Virologie [CHU Pitié-Salpêtrière], Institut de Recherche pour le Développement (IRD)-Institut de Chimie de Toulouse (ICT-FR 2599), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, Hôpital Cochin [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Service de médecine interne et d'immunologie clinique [CHU Pitié-Salpêtrière], Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC), Service de néphrologie [CHU Pitié-Salpêtrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), Institut de Recherche pour le Développement (IRD)-Institut de Chimie de Toulouse (ICT), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT), Centre Hospitalier Universitaire de Toulouse (CHU Toulouse), and CHU Henri Mondor [Créteil]
Subjects: Male, Vasculitis, Pathology, medicine.medical_specialty, Sofosbuvir, Hepatitis C virus, [SDV]Life Sciences [q-bio], Immunology, Hepacivirus, medicine.disease_cause, Infections, Gastroenterology, Antiviral Agents, General Biochemistry, Genetics and Molecular Biology, Autoimmune Diseases, 03 medical and health sciences, chemistry.chemical_compound, 0302 clinical medicine, Rheumatology, Internal medicine, Ribavirin, medicine, Immunology and Allergy, Humans, Prospective Studies, 030203 arthritis & rheumatology, business.industry, Hepatitis C, Middle Aged, medicine.disease, Cryoglobulinemia, 3. Good health, Regimen, Treatment Outcome, chemistry, Systemic vasculitis, 030211 gastroenterology & hepatology, Drug Therapy, Combination, Female, business, medicine.drug
Abstract: International audience; BackgroundHepatitis C virus (HCV) is the aetiological agent for most cases of cryoglobulinaemia vasculitis. Interferon-containing regimens are associated with important side effects and may exacerbate the vasculitis.ObjectiveTo evaluate safety and efficacy of an oral interferon-free regimen, sofosbuvir plus ribavirin, in HCV-cryoglobulinaemia vasculitis.Patients and methodsWe enrolled 24 consecutive patients (median age of 56.5 years and 46% of women) with HCV-cryoglobulinaemia vasculitis. Sofosbuvir (400 mg/day) was associated with ribavirin (200-1400 mg/day), for 24 weeks. The primary efficacy end point was a complete clinical response of the vasculitis at the end of treatment (week 24).ResultsMain features of HCV-cryoglobulinaemia vasculitis included purpura and peripheral neuropathy (67%), arthralgia (58%), glomerulonephritis (21%) and skin ulcers (12%). Twenty-one patients (87.5%) were complete clinical response at week 24. Complete clinical response was achieved in six (25%) patients at week 4, four (16.6%) at week 8, seven (29.2%) at week 12, three (12.5%) at week 16 and one (4.2%) at week 20. The cryoglobulin level decreased from 0.35 (0.16-0.83) at baseline to 0.15 (0.05-0.45) g/L at week 24. The C4 serum level increased from 0.10 (0.07-0.19) to 0.17 (0.09-0.23) g/L at week 24. Seventy-four per cent of patients had a sustained virological response at week 12 post treatment. The most common side effects were fatigue, insomnia and anaemia. Two serious adverse events were observed.ConclusionsSofosbuvir plus ribavirin combination was associated with a high rate of complete clinical response and a low rate of serious adverse events in HCV-cryoglobulinaemia vasculitis.
Published: 2015

44. The promise of low-dose interleukin-2 therapy for autoimmune and inflammatory diseases

Author: Abul K. Abbas, David Klatzmann, Service de biothérapies [CHU Pitié-Salpétrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], and KLATZMANN, DAVID
Subjects: Interleukin 2, History, [SDV]Life Sciences [q-bio], chemical and pharmacologic phenomena, Inflammation, Antineoplastic Agents, medicine.disease_cause, T-Lymphocytes, Regulatory, Education, Autoimmunity, Autoimmune Diseases, Immune system, medicine, Humans, ComputingMilieux_MISCELLANEOUS, Autoimmune disease, [SDV.MHEP] Life Sciences [q-bio]/Human health and pathology, Innate immune system, Effector, business.industry, Interleukin, hemic and immune systems, medicine.disease, 3. Good health, Computer Science Applications, [SDV] Life Sciences [q-bio], Immunology, Interleukin-2, medicine.symptom, business, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology, medicine.drug
Abstract: Depletion of regulatory T (TReg) cells in otherwise healthy individuals leads to multi-organ autoimmune disease and inflammation. This indicates that in a normal immune system, there are self-specific effector T cells that are ready to attack normal tissue if they are not restrained by TReg cells. The data imply that there is a balance between effector T cells and TReg cells in health and suggest a therapeutic potential of TReg cells in diseases in which this balance is altered. Proof-of-concept clinical trials, now supported by robust mechanistic studies, have shown that low-dose interleukin-2 specifically expands and activates TReg cell populations and thus can control autoimmune diseases and inflammation.
Published: 2015

45. Human and Mouse CD8+CD25+FOXP3+ Regulatory T Cells at Steady State and during Interleukin-2 Therapy

Author: Churlaud, Guillaume, Pitoiset, Fabien, Jebbawi, Fadi, Lorenzon, Roberta, Bellier, Bertrand, Rosenzwajg, Michelle, Klatzmann, David, Immunologie - Immunopathologie - Immunothérapie (I3), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Service de biothérapies [CHU Pitié-Salpétrière], Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), HAL-UPMC, Gestionnaire, Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], and Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)
Subjects: T cell biology, [SDV.IMM] Life Sciences [q-bio]/Immunology, Immunology, autoimmunity, [SDV.IMM]Life Sciences [q-bio]/Immunology, chemical and pharmacologic phenomena, hemic and immune systems, immunotherapy, immunological tolerance, immune response
Abstract: International audience; In addition to CD4+ regulatory T cells (Tregs), CD8+ suppressor T cells are emerging as an important subset of regulatory T cells. Diverse populations of CD8+ T cells with suppressive activities have been described. Among them, a small population of CD8+CD25+FOXP3+ T cells is found both in mice and humans. In contrast to thymic-derived CD4+CD25+FOXP3+ Tregs, their origin and their role in the pathophysiology of autoimmune diseases (AIDs) are less understood. We report here the number, phenotype, and function of CD8+ Tregs cells in mice and humans, at the steady state and in response to low-dose interleukin-2 (IL-2). CD8+ Tregs represent approximately 0.4 and 0.1% of peripheral blood T cells in healthy humans and mice, respectively. In mice, their frequencies are quite similar in lymph nodes (LNs) and the spleen, but two to threefold higher in Peyer patches and mesenteric LNs. CD8+ Tregs express low levels of CD127. CD8+ Tregs express more activation or proliferation markers such as CTLA-4, ICOS, and Ki-67 than other CD8+ T cells. In vitro, they suppress effector T cell proliferation as well as or even better than CD4+ Tregs. Owing to constitutive expression of CD25, CD8+ Tregs are 20- to 40-fold more sensitive to in vitro IL-2 stimulation than CD8+ effector T cells, but 2–4 times less than CD4+ Tregs. Nevertheless, low-dose IL-2 dramatically expands and activates CD8+ Tregs even more than CD4+ Tregs, in mice and humans. Further studies are warranted to fully appreciate the clinical relevance of CD8+ Tregs in AIDs and the efficacy of IL-2 treatment.
Published: 2015

46. Low-dose interleukin-2 fosters a dose-dependent regulatory T cell tuned milieu in T1D patients

Author: Aixin Yu, Alberto Pugliese, Georgia Afonso, Wahiba Chaara, Roberto Mallone, Guillaume Churlaud, Agnès Hartemann, Nicolas Dérian, Michelle Rosenzwajg, Roberta Lorenzon, S. Alice Long, David Klatzmann, Adrien Six, Thomas R. Malek, Hang-Phuong Pham, Jane H. Buckner, Service de biothérapies [CHU Pitié-Salpétrière], Assistance publique - Hôpitaux de Paris (AP-HP)-CHU Pitié-Salpêtrière [APHP], Immunologie - Immunopathologie - Immunothérapeutique ( I3 ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Centre National de la Recherche Scientifique ( CNRS ), Institut Cochin ( UM3 (UMR 8104 / U1016) ), Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Centre National de la Recherche Scientifique ( CNRS ), Service de diabétologie [CHU Cochin], Assistance publique - Hôpitaux de Paris (AP-HP)-CHU Cochin [AP-HP], Translational Research Program, Benaroya Research Institute, Virginia Mason-Virginia Mason, ILTOO Pharma, CHU Pitié-Salpêtrière [APHP], Service de Diabétologie, Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Assistance publique - Hôpitaux de Paris (AP-HP)-CHU Pitié-Salpêtrière [APHP], The Diabetes Research Institute, University of Miami, University of Miami [Coral Gables]-University of Miami [Coral Gables], Department of Microbiology and Immunology, Department of Medicine, Miller School of Medicine, CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Immunologie - Immunopathologie - Immunothérapeutique (I3), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Institut Cochin (IC UM3 (UMR 8104 / U1016)), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Cochin [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), University of Miami Leonard M. Miller School of Medicine (UMMSM), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Service de diabétologie [CHU Pitié-Salpétrière], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Service de Diabétologie [CHU Pitié-Salpétrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], and Administateur, HAL Sorbonne Université
Subjects: Male, medicine.medical_treatment, Lymphocyte Activation, T-Lymphocytes, Regulatory, T-Lymphocyte Subsets, Insulin-Secreting Cells, STAT5 Transcription Factor, Immunology and Allergy, Drug Dosage Calculations, IL-2 receptor, Cells, Cultured, FOXP3, Forkhead Transcription Factors, hemic and immune systems, Middle Aged, 3. Good health, medicine.anatomical_structure, Cytokines, Female, Immunotherapy, [SDV.IMM.IMM] Life Sciences [q-bio]/Immunology/Immunotherapy, medicine.drug, Adult, Interleukin 2, Adolescent, Regulatory T cell, CD8 Antigens, Immunology, chemical and pharmacologic phenomena, [ SDV.IMM.IMM ] Life Sciences [q-bio]/Immunology/Immunotherapy, Immunopathology, Biology, Article, Young Adult, Immune system, Antigen, Glucocorticoid-Induced TNFR-Related Protein, medicine, Humans, Pharmacokinetics, Immunosuppression Therapy, Inflammation, Dose-Response Relationship, Drug, Interleukin-2 Receptor alpha Subunit, [SDV.IMM.IMM]Life Sciences [q-bio]/Immunology/Immunotherapy, Diabetes Mellitus, Type 1, Interleukin-2, Transcriptome, Tolerance, CD8
Abstract: International audience; Most autoimmune diseases (AID) are linked to an imbalance between autoreactive effector T cells (Teffs) and regulatory T cells (Tregs). While blocking Teffs with immunosuppression has long been the only therapeutic option, activating/expanding Tregs may achieve the same objective without the toxicity of immunosuppression. We showed that low-dose interleukin-2 (ld-IL-2) safely expands/activates Tregs in patients with AID, such HCV-induced vasculitis and Type 1 Diabetes (T1D). Here we analyzed the kinetics and dose-relationship of IL-2 effects on immune responses in T1D patients. Ld-IL-2 therapy induced a dose-dependent increase in CD4+Foxp3+ and CD8+Foxp3+ Treg numbers and proportions, the duration of which was markedly dose-dependent. Tregs expressed enhanced levels of activation markers, including CD25, GITR, CTLA-4 and basal pSTAT5, and retained a 20-fold higher sensitivity to IL-2 than Teff and NK cells. Plasma levels of regulatory cytokines were increased in a dose-dependent manner, while cytokines linked to Teff and Th17 inflammatory cells were mostly unchanged. Global transcriptome analyses showed a dose-dependent decrease in immune response signatures. At the highest dose, Teff responses against beta-cell antigens were suppressed in all 4 patients tested. These results inform of broader changes induced by ld-IL-2 beyond direct effects on Tregs, and relevant for further development of ld-IL-2 for therapy and prevention of T1D, and other autoimmune and inflammatory diseases.
Published: 2015

47. Iron deficiency screening is a key issue in chronic inflammatory diseases: A call to action

Author: Patrice Cacoub, Gabriel Choukroun, Alain Cohen‐Solal, Elisabeth Luporsi, Laurent Peyrin‐Biroulet, Katell Peoc'h, Valérie Andrieu, Sigismond Lasocki, Hervé Puy, Jean‐Noël Trochu, Service de Département de médecine interne et immunologie clinique [CHU Pitié-Salpêtrière] (DMIIC), CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), CHU Amiens-Picardie, Mécanismes physiopathologiques et conséquences des calcifications vasculaires - UR UPJV 7517 (MP3CV), Université de Picardie Jules Verne (UPJV)-CHU Amiens-Picardie, Marqueurs cardiovasculaires en situation de stress (MASCOT (UMR_S_942 / U942)), Institut National de la Santé et de la Recherche Médicale (INSERM)-Groupe Hospitalier Saint Louis - Lariboisière - Fernand Widal [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Université Sorbonne Paris Nord, Hôpital Lariboisière-Fernand-Widal [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Centre hospitalier régional Metz-Thionville (CHR Metz-Thionville), Hôpital de Mercy, Nutrition-Génétique et Exposition aux Risques Environnementaux (NGERE), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Service d'Hépato-gastro-entérologie [CHRU Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Hôpital Beaujon [AP-HP], Centre de recherche sur l'Inflammation (CRI (UMR_S_1149 / ERL_8252 / U1149)), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), AP-HP - Hôpital Bichat - Claude Bernard [Paris], Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM), Université d'Angers (UA), Hôpital Louis Mourier - AP-HP [Colombes], Centre hospitalier universitaire de Nantes (CHU Nantes), unité de recherche de l'institut du thorax UMR1087 UMR6291 (ITX), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Nantes Université - UFR de Médecine et des Techniques Médicales (Nantes Univ - UFR MEDECINE), Nantes Université - pôle Santé, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Santé, and Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)
Subjects: Iron, Anemia, iron deficiency, Hepcidins, transferrin saturation, Internal Medicine, cancer, Humans, Anemia, Iron-Deficiency, Hepcidins/therapeutic use, Transferrins/therapeutic use, Iron/therapeutic use, serum ferritin, Iron Deficiencies, chronic inflammatory disease, chronic heart failure, Iron-Deficiency/diagnosis/etiology, Chronic Disease, Ferritins, Quality of Life, Transferrins, Cytokines, bowel inflammatory disease, Biomarkers, chronic kidney disease, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract: International audience; Iron deficiency is frequent in patients with chronic inflammatory conditions (e.g., chronic heart failure, chronic kidney disease, cancers, and bowel inflammatory diseases). Indeed, high concentrations of inflammatory cytokines increase hepcidin concentrations that lead to the sequestration of iron in cells of the reticuloendothelial system (functional iron deficiency). Iron parameters are often assessed only in the context of anemia, but iron deficiency, even without anemia, is present in about half of patients with inflammatory conditions. Iron deficiency worsens underlying chronic diseases and is an independent factor of morbidity and mortality. In daily practice, the most effective biomarkers of iron status are serum ferritin, which reflects iron storage, and transferrin saturation, which reflects the transport of iron. Serum ferritin is increased in an inflammatory context, and there is still no consensus on the threshold to be used in chronic inflammatory conditions. Nevertheless, recent recommendations of international guidelines agreed to define iron deficiency by serum ferritin
Published: 2022

48. Short communication: Do clinical guidelines for bipolar disorders adequately address sleep, circadian rhythm, activity and lifestyle problems?

Author: Tibby Flint, Vincent Hennion, Bruno Etain, Jan Scott, University of Bristol [Bristol], Optimisation thérapeutique en Neuropsychopharmacologie (OPTeN (UMR_S_1144 / U1144)), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), Groupe Hospitalier Saint Louis - Lariboisière - Fernand Widal [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Département Médico-Universitaire Neurosciences [Sorbonne Université] (DMU Neurosciences), CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Tenon [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Rothschild [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Fondation FondaMental [Créteil], Newcastle University [Newcastle], Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), and Etain, Bruno
Subjects: Bipolar Disorder, Energy, MESH: Humans, MESH: Sleep, Health Personnel, [SDV.MHEP.PSM] Life Sciences [q-bio]/Human health and pathology/Psychiatrics and mental health, Circadian, MESH: Life Style, Lifestyle, Quality, Practice guidelines, Circadian Rhythm, Psychiatry and Mental health, Clinical Psychology, MESH: Bipolar Disorder, [SDV.MHEP.PSM]Life Sciences [q-bio]/Human health and pathology/Psychiatrics and mental health, Bipolar disorders, Humans, MESH: Health Personnel, MESH: Circadian Rhythm, Sleep, Life Style
Abstract: International audience; Objectives Clinical practice guidelines (CPGs) for the treatment of bipolar disorder (BD) provide guidance to health care professionals and patients about the management of core aspects of BD. This study evaluated the overall quality of CPGs and examined the quantity, specificity, clarity and utility of recommendations about four key contemporary themes: sleep, circadian rhythms, activity and energy, and healthy lifestyles. Methods English language editions of CPGs for the treatment of BD were identified by a systematic search of the literature from 2007 onwards (i.e. 15 years). Blind independent ratings were combined to give consensus scores for the quality of each CPGs (using the 14-item International Center for Allied Health Evidence guideline checklist). Composite ratings of the quantity, specificity, clarity and utility of recommendations about the key themes were undertaken using a 0-3 scale. Results Twenty-five CPGs were eligible for review. Overall quality was high (median checklist score=10), but only 11 (44%) CPGs included even basic information about circadian rhythm disturbances. Combined scores for composite ratings about sleep and circadian rhythms were significantly correlated with overall quality of the CPG (sleep, r = 0.43; circadian rhythms, r = 0.42) but not with year of publication. Limitations No reliable scale exists for generating composite ratings of the four themes we examined. Conclusions Circadian rhythms and chronobiology represent neglected domains in CPGs. Incorporating this important theme into future editions of CPGs would aid health care professionals to identify, prevent, or intervene with these problems and improve outcomes for a significant proportion of individuals with BD.
Published: 2022

49. HCV-related lymphoproliferative disorders in the direct-acting antiviral era: From mixed cryoglobulinaemia to B-cell lymphoma

Author: Matheus Vieira, Cloé Comarmond, D. Saadoun, Paul Régnier, Patrice Cacoub, Service de médecine interne et d'immunologie clinique [CHU Pitié-Salpêtrière], CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Centre National de Référence Maladies auto-immunes Systémiques Rares [CHU Pitié-Salpêtrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), Departement Hospitalo- Universitaire - Inflammation, Immunopathologie, Biothérapie [Paris] (DHU - I2B), CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Centre de Référence des Maladies Auto-Inflammatoires et des Amyloses [CHU Tenon] (CeréMAIA), CHU Tenon [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Hôpital Lariboisière-Fernand-Widal [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Service de Département de médecine interne et immunologie clinique [CHU Pitié-Salpêtrière] (DMIIC), Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-CHU Saint-Antoine [AP-HP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP]
Subjects: Lymphoma, B-Cell, Hepatitis C virus, Lymphoproliferative disorders, lymphoma, Hepacivirus, medicine.disease_cause, Antiviral Agents, cryoglobulinemia, vasculitis, extrahepatic manifestation, 03 medical and health sciences, 0302 clinical medicine, HCV (Hepatitis C), hemic and lymphatic diseases, medicine, Humans, B-cell lymphoma, Cryoglobulinemic vasculitis, B cell, 030304 developmental biology, 0303 health sciences, treatment, Hepatology, business.industry, medicine.disease, Cryoglobulinemia, Lymphoproliferative Disorders, 3. Good health, Lymphoma, direct acting-antivirals (DAA), medicine.anatomical_structure, 030220 oncology & carcinogenesis, Immunology, lymphoproliferative disorder, Vasculitis, business, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract: International audience; Hepatitis C virus (HCV) has been shown to induce many B-cell lymphoproliferative disorders. B lymphocytes are specialized in producing immunoglobulins, and within chronic HCV infection they can cause a range that goes from polyclonal hypergammaglobulinemia without clinical repercussions, passing by mixed cryoglobulinemic vasculitis and eventually reaching B-cell non-Hodgkin lymphoma. This spectrum is supported by substantial epidemiological, pathophysiological and therapeutic data. Many, although not all, pathogenic pathways leading from one extreme to another have been decrypted. Chronic viral antigen stimulation of B lymphocytes has a central role until the last steps towards overt malignancy. This has direct implications in treatment strategies, which always include the use of direct-acting antiviral agents sometimes associated with immunosuppressants. The role of direct-acting antiviral agents has been well established in patients with cryoglobulinemia vasculitis. Its positive impact on B cell non-Hodgkin lymphoma needs to be confirmed in larger studies with longer follow-up.
Published: 2022

50. Higher stress response and altered quality of life in schizophrenia patients with low membrane levels of docosahexaenoic acid

Author: Vladimir Adrien, Nicolas Bosc, Hugo Fumat, Cédric Tessier, Florian Ferreri, Stéphane Mouchabac, David Tareste, Philippe Nuss, Service de Psychiatrie adultes [CHU Saint-Antoine], CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Infrastructure de recherche clinique en psychiatrie adulte [ICM Paris] (iCRIN psychiatrie), Institut du Cerveau = Paris Brain Institute (ICM), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Département Médico-Universitaire Neurosciences [Sorbonne Université] (DMU Neurosciences), CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Tenon [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Trousseau [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Rothschild [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Saint-Antoine [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Charles Foix [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-CHU Tenon [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Institut de psychiatrie et neurosciences de Paris (IPNP - U1266 Inserm), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), Centre de Recherche Saint-Antoine (CRSA), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU), and Adrien, Vladimir
Subjects: schizophrenia, stabilized patients, [SDV] Life Sciences [q-bio], Psychiatry and Mental health, quality of life, [SDV]Life Sciences [q-bio], biomarkers, membrane fatty acids
Abstract: Schizophrenia is a severe, chronic, and heterogeneous mental disorder that affects approximately 1% of the world population. Ongoing research aims at clustering schizophrenia heterogeneity into various “biotypes” to identify subgroups of individuals displaying homogeneous symptoms, etiopathogenesis, prognosis, and treatment response. The present study is in line with this approach and focuses on a biotype partly characterized by a specific membrane lipid composition. We have examined clinical and biological data of patients with stabilized schizophrenia, including the fatty acid content of their erythrocyte membranes, in particular the omega-3 docosahexaenoic acid (DHA). Two groups of patients of similar size were identified: the DHA− group (N = 19) with a lower proportion of membrane DHA as compared to the norm in the general population, and the DHAn group (N = 18) with a normal proportion of DHA. Compared to DHAn, DHA− patients had a higher number of hospitalizations and a lower quality of life in terms of perceived health and physical health. They also exhibited significant higher interleukin-6 and cortisol blood levels. These results emphasize the importance of measuring membrane lipid and immunoinflammatory biomarkers in stabilized patients to identify a specific subgroup and optimize non-pharmacological interventions. It could also guide future research aimed at proposing specific pharmacological treatments.
Published: 2023

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