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3. Reducing mortality in newly diagnosed standard-risk acute promyelocytic leukemia in elderly patients treated with arsenic trioxide requires major reduction of chemotherapy: a report by the French Belgian Swiss APL group (APL 2006 trial)

Author

Ramy Rahmé, Lionel Ades, Xavier Thomas, Agnès Guerci-Bresler, Arnaud Pigneux, Norbert Vey, Emmanuel Raffoux, Sylvie Castaigne, Olivier Spertini, Sebastian Wittnebel, Jean Pierre Marolleau, Gandhi Damaj, Dominique Bordessoule, Julie Lejeune, Sylvie Chevret, and Pierre Fenaux

Subjects
Diseases of the blood and blood-forming organs, RC633-647.5
Published
2018
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4. Efficacy and safety of subcutaneous and intravenous rituximab plus cyclophosphamide, doxorubicin, vincristine, and prednisone in first-line diffuse large B-cell lymphoma: the randomized MabEase study

Author

Pieternella Lugtenburg, Irit Avivi, Henriette Berenschot, Osman Ilhan, Jean Pierre Marolleau, Arnon Nagler, Antonio Rueda, Monica Tani, Mehmet Turgut, Stuart Osborne, Rodney Smith, and Michael Pfreundschuh

Subjects
Diseases of the blood and blood-forming organs, RC633-647.5
Abstract

Intravenous rituximab plus chemotherapy is standard treatment for diffuse large B-cell lymphoma. A subcutaneous formulation of rituximab is expected to simplify and shorten drug preparation and administration, and to reduce treatment burden. MabEase (clinicaltrials.gov Identifier: 01649856) examined efficacy, safety and patient satisfaction with subcutaneous rituximab plus chemotherapy in treatment-naïve patients with diffuse large B-cell lymphoma. Patients were randomized 2:1 to subcutaneous rituximab (intravenous 375 mg/m2 cycle 1; subcutaneous 1,400 mg cycles 2–8) or intravenous rituximab (375 mg/m2 cycles 1–8) plus cyclophosphamide, doxorubicin, vincristine, and prednisone every 14 or 21 days. The primary endpoint was investigator-assessed complete response/unconfirmed complete response. Secondary endpoints included safety, treatment satisfaction (Cancer Treatment Satisfaction Questionnaire and Rituximab Administration Satisfaction Questionnaire), time savings, and survival. Of 576 randomized patients, 572 (378 subcutaneous; 194 intravenous) received treatment. End of induction complete response/unconfirmed complete response rates were 50.6% (subcutaneous) and 42.4% (intravenous). After a median 35 months, median overall, event-free and progression-free survivals were not reached. Grade ≥3 adverse events (subcutaneous 58.3%; intravenous 54.3%) and administration-related adverse events (both groups 21%) were similar between arms. Injection-site reactions were more common with subcutaneous injections (5.7% versus 0%, respectively). Rituximab Administration Satisfaction Questionnaire scores for ‘impact on activities of daily living’, ‘convenience’, and ‘satisfaction’ were improved with subcutaneous versus intravenous injections; Cancer Therapy Satisfaction Questionnaire scores were similar between arms. Median administration time (6 minutes vs. 2.6 to 3.0 hours), chair/bed and overall hospital times were shorter with subcutaneous versus intravenous rituximab. Overall, subcutaneous and intravenous rituximab had similar efficacy and safety, with improved patient satisfaction and time savings.

Published
2017
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5. Ascorbic acid (vitamin C) synergistically enhances the therapeutic effect of targeted therapy in chronic lymphocytic leukemia

Author

Walaa Darwiche, Cathy Gomila, Hakim Ouled-Haddou, Marie Naudot, Cécile Doualle, Pierre Morel, Florence Nguyen-Khac, Loïc Garçon, Jean-Pierre Marolleau, and Hussein Ghamlouch

Subjects
Chronic lymphocytic leukemia, Ascorbic acid, Vitamin C, Cytotoxicity, Drug combination, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
Abstract

Abstract Background Novel, less toxic, cost-effective and safe therapeutic strategies are needed to improve treatment of chronic lymphocytic leukemia (CLL). Ascorbic acid (AA, vitamin C) has shown a potential anti-cancer therapeutic activity in several cancers. However, the anti-cancer effects of ascorbic acid on CLL B-cells have not been extensively studied. We aimed in this study to evaluate the in vitro therapeutic activity using clinically relevant conditions. Methods Primary CLL B-cells and two CLL cell lines were exposed to a dose that is clinically achievable by AA oral administration (250 μM), and cell death and potential mechanisms were assessed. The role of the protective CLL microenvironment was studied. Synergistic interaction between AA and CLL approved drugs (Ibrutinib, Idelalisib and Venetoclax) was also evaluated. Results Ascorbic acid is cytotoxic for CLL B-cells at low dose (250 μM) but spares healthy B-cells. Ascorbic-acid-induced cytotoxicity involved pro-oxidant damage through the generation of reactive oxygen species in the extracellular media and in CLL cells, and induced caspase-dependent apoptosis. We also found that AA treatment overcame the supportive survival effect provided by microenvironment including bone marrow mesenchymal stem cells, T-cell cues (CD40L + IL-4), cytokines and hypoxia. Our data suggest that resistance to AA could be mediated by the expression of the enzyme catalase in some CLL samples and by the glucose metabolite pyruvate. We also demonstrated that AA synergistically potentiates the cytotoxicity of targeted therapies used in or being developed for CLL. Conclusion These preclinical results point to AA as an adjuvant therapy with potential to further improve CLL treatments in combination with targeted therapies.

Published
2020
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6. Epstein‐Barr Virus‐related mucocutaneous ulcer lymphoma associated with Crohn's disease, treated with monoclonal antibody anti‐CD30

Author

Lydia Montes, Estelle Tredez, Clara Yzet, Caroline Delette, Denis Chatelain, Delphine Lebon, Mathurin Fumery, and Jean‐Pierre Marolleau

Subjects
brentuximab vedotin, CD30, epstein‐barr virus, immunosuppression, lymphoma, Medicine, Medicine (General), R5-920
Abstract

Abstract Epstein‐Barr virus‐related mucocutaneous ulcer lymphoma is a rare entity promoted by immunosuppression. It is less described in inflammatory bowel diseases, and mostly these are refractory diseases. CD30 acts to Epstein‐Barr virus (EBV) local proliferation and thus could be an interesting target. Brentuximab vedotin could become a new helpful tool.

Published
2020
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7. Biallelic deletion of 1p32 defines ultra-high-risk myeloma, but monoallelic del(1p32) remains a strong prognostic factor

Author

Anaïs Schavgoulidze, Alexis Talbot, Aurore Perrot, Titouan Cazaubiel, Xavier Leleu, Salomon Manier, Laure Buisson, Sabrina Mahéo, Laura Do Souto Ferreira, Luka Pavageau, Cyrille Hulin, Jean-Pierre Marolleau, Laurent Voillat, Karim Belhadj, Marion Divoux, Borhane Slama, Sabine Brechignac, Margaret Macro, Anne-Marie Stoppa, Laurence Sanhes, Frédérique Orsini-Piocelle, Jean Fontan, Marie-Lorraine Chretien, Hélène Demarquette, Mohamad Mohty, Hervé Avet-Loiseau, and Jill Corre

Subjects
Immunology, Cell Biology, Hematology, Biochemistry
Abstract

Cytogenetic abnormalities (CAs) are known to be the preponderant prognostic factor in multiple myeloma. Our team has recently developed a prognostic score based on 6 CAs, with which del(1p32) appears to be the second worst abnormality after del(17p). This study aimed to confirm the adverse effect of 1p32 deletion in patients with newly diagnosed multiple myeloma (NDMM). Among 2551 patients with newly diagnosed multiple myeloma, 11% were harboring del(1p32). Their overall survival (OS) was significantly inferior compared with patients without del(1p32) (median OS: 49 months vs 124 months). Likewise, progression-free survival was significantly shorter. More importantly, biallelic del(1p32) conferred a dramatically poorer prognosis than a monoallelic del(1p32) (median OS: 25 months vs 60 months). As expected, the OS of patients with del(1p32) significantly decreased when this abnormality was associated with other high-risk CAs [del(17p), t(4;14), or gain(1q)]. In the multivariate analysis, del(1p32) appeared as a negative prognostic factor; after adjustment for age and treatment, the risk of progression was 1.3 times higher among patients harboring del(1p32), and the risk of death was 1.9 times higher. At the dawn of risk-adapted treatment strategies, we have confirmed the adverse effect of del(1p32) in multiple myeloma and the relevance of its assessment at diagnosis.

Published
2023

8. Functional Validation of a New Alginate-based Hydrogel Scaffold Combined with Mesenchymal Stem Cells in a Rat Hard Palate Cleft Model

Author

Marie Naudot, PhD, Julien Davrou, MD, Az-Eddine Djebara, MD, Anaïs Barre, MS, Nolwenn Lavagen, MD, Sandrine Lardière, PhD, Soufiane Zakaria Azdad, MD, Luciane Zabijak, BS, Stéphane Lack, PhD, Bernard Devauchelle, MD, Jean-Pierre Marolleau, MD, and Sophie Le Ricousse, PhD

Subjects
Surgery, RD1-811
Abstract

Background:. One of the major difficulties in cleft palate repair is the requirement for several surgical procedures and autologous bone grafting to form a bony bridge across the cleft defect. Engineered tissue, composed of a biomaterial scaffold and multipotent stem cells, may be a useful alternative for minimizing the non-negligible risk of donor site morbidity. The present study was designed to confirm the healing and osteogenic properties of a novel alginate-based hydrogel in palate repair. Methods:. Matrix constructs, seeded with allogeneic bone marrow–derived mesenchymal stem cells (BM-MSCs) or not, were incorporated into a surgically created, critical-sized cleft palate defect in the rat. Control with no scaffold was also tested. Bone formation was assessed using microcomputed tomography at weeks 2, 4, 8, and 12 and a histologic analysis at week 12. Results:. At 12 weeks, the proportion of bone filling associated with the use of hydrogel scaffold alone did not differ significantly from the values observed in the scaffold-free experiment (61.01% ± 5.288% versus 36.91% ± 5.132%; p = 0.1620). The addition of BM-MSCs stimulated bone formation not only at the margin of the defect but also in the center of the implant. Conclusions:. In a relevant in vivo model of cleft palate in the rat, we confirmed the alginate-based hydrogel’s biocompatibility and real advantages for tissue healing. Addition of BM-MSCs stimulated bone formation in the center of the implant, demonstrating the new biomaterial’s potential for use as a bone substitute grafting material for cleft palate repair.

Published
2020
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10. Heterogeneity in long-term outcomes for patients with Revised International Staging System stage II, newly diagnosed multiple myeloma

Author

Anais Schavgoulidze, Valerie Lauwers-Cances, Aurore Perrot, Titouan Cazaubiel, Marie-Lorraine Chretien, Philippe Moreau, Thierry Facon, Xavier Leleu, Lionel Karlin, Anne-Marie Stoppa, Olivier Decaux, Karim Belhadj, Bertrand Arnulf, Mohamad Mohty, Clara M Ariette, Cecile Fohrer-Sonntag, Pascal Lenain, Jean-Pierre Marolleau, Mourad Tiab, Carla Araujo, Frederique Orsini-Piocelle, Arnaud Jaccard, Murielle Roussel, Lotfi Benboubker, Jean-Richard Eveillard, Mamoun Dib, Marion Divoux, Michel Attal, Herve Avet-Loiseau, Jill Corre, Institut Universitaire du Cancer de Toulouse - Oncopole (IUCT Oncopole - UMR 1037), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Centre Hospitalier Universitaire de Toulouse (CHU Toulouse)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre de Recherches en Cancérologie de Toulouse (CRCT), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Centre Hospitalier Universitaire de Toulouse (CHU Toulouse), Service Hématologie - IUCT-Oncopole [CHU Toulouse], Pôle Biologie [CHU Toulouse], Centre Hospitalier Universitaire de Toulouse (CHU Toulouse)-Centre Hospitalier Universitaire de Toulouse (CHU Toulouse)-Pôle IUCT [CHU Toulouse], CHU Bordeaux [Bordeaux], Service d'Hématologie Clinique (CHU de Dijon), Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), Centre hospitalier universitaire de Nantes (CHU Nantes), CHU Lille, Service d'Hématologie [CHU Poitiers], Centre hospitalier universitaire de Poitiers (CHU Poitiers), Centre Hospitalier Lyon Sud [CHU - HCL] (CHLS), Hospices Civils de Lyon (HCL), Service d’Hématologie [Institut Paoli Calmettes, Marseille], Institut Paoli-Calmettes, Fédération nationale des Centres de lutte contre le Cancer (FNCLCC)-Fédération nationale des Centres de lutte contre le Cancer (FNCLCC), CHU Pontchaillou [Rennes], Microenvironment and B-cells: Immunopathology,Cell Differentiation, and Cancer (MOBIDIC), Université de Rennes (UR)-Etablissement français du sang [Rennes] (EFS Bretagne)-Institut National de la Santé et de la Recherche Médicale (INSERM), Hôpital Henri Mondor, Hopital Saint-Louis [AP-HP] (AP-HP), 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), CHU Grenoble, Hôpital de Hautepierre [Strasbourg], Centre de Lutte Contre le Cancer Henri Becquerel Normandie Rouen (CLCC Henri Becquerel), CHU Amiens-Picardie, Hématologie clinique [CH La Roche-sur-Yon], Centre Hospitalier Départemental - Hôpital de La Roche-sur-Yon (CHD Vendée), Centre Hospitalier de la Côte Basque (CHCB), Centre Hospitalier Annecy-Genevois [Saint-Julien-en-Genevois], Service d'Hématologie clinique et thérapie cellulaire [CHU Limoges], CHU Limoges, Centre Hospitalier Régional Universitaire de Tours (CHRU Tours), Centre Hospitalier Régional Universitaire de Brest (CHRU Brest), Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM), Service d'Hématologie [CHRU Nancy], and Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)

Subjects
Hematology, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract

In the era of personalized treatment in multiple myeloma, high-risk patients must be accurately identified. The International Myeloma Working Group recommends using the Revised International Staging System (R-ISS) to pick out high-risk patients. The main purpose of our work was to explore the heterogeneity of outcome among R-ISS stage II patients assessing the impact of International Staging System (ISS) stage, chromosomal abnormalities and lactate dehydrogenase level in this subgroup. Data were collected from 1,343 patients up to 65 years old with newly diagnosed myeloma, enrolled in three clinical trials implemented by the Intergroupe Francophone du Myélome. All patients were eligible for intensive treatment. Patients in R-ISS stage II but ISS stage I had 1.6 times higher risk of death than patients in R-ISS stage I (adjusted hazard ratio=1.6; 95% confidence interval: 1.1-2.2; P=0.01) and patients in R-ISS stage II but with ISS stage III had a better overall survival than patients in R-ISS stage III (adjusted hazard ratio=0.7; 95% confidence interval: 0.4-0.9, P=0.02). However, among patients classified in R-ISS II, ISS stage and chromosomal abnormalities (del[17p] and t[4;14]) were still relevant prognostic factors for death. Dividing R-ISS stage II into three subgroups: ISS I with standard-risk chromosomal abnormalities, ISS II or III with standard-risk chromosomal abnormalities and patients with high-risk chromosomal abnormalities, median overall survival times were, respectively, not reached, 112 months and 71 months (P

Published
2022

11. Critical role of the HDAC6–cortactin axis in human megakaryocyte maturation leading to a proplatelet-formation defect

Author

Kahia Messaoudi, Ashfaq Ali, Rameez Ishaq, Alberta Palazzo, Dominika Sliwa, Olivier Bluteau, Sylvie Souquère, Delphine Muller, Khadija M. Diop, Philippe Rameau, Valérie Lapierre, Jean-Pierre Marolleau, Patrick Matthias, Isabelle Godin, Gérard Pierron, Steven G. Thomas, Stephen P. Watson, Nathalie Droin, William Vainchenker, Isabelle Plo, Hana Raslova, and Najet Debili

Subjects
Science
Abstract

Histone deacetylase (HDAC) inhibitors, a class of cancer therapeutics, cause thrombocytopenia via an unknown mechanism. Here, the authors show that HDAC6 inhibition impairs proplatelet formation in human megakaryocytes, and show that this is linked to hyperacetylation of the actin-binding protein cortactin.

Published
2017
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12. Combining thrombopoietin receptor agonists with immunosuppressive drugs in adult patients with multirefractory immune thrombocytopenia, an update on the French experience

Author

Etienne Crickx, Mikael Ebbo, Etienne Rivière, Odile Souchaud‐Debouverie, Louis Terriou, Sylvain Audia, Marc Ruivard, Bouchra Asli, Jean‐Pierre Marolleau, Nadine Méaux‐Ruault, Mathieu Gerfaud‐Valentin, Philippe Audeguy, Mohamed Hamidou, Selim Corm, Xavier Delbrel, Jean Fontan, Delphine Lebon, Christelle Mausservey, Guillaume Moulis, Nicolas Limal, Marc Michel, Bertrand Godeau, Matthieu Mahévas, Institut Necker Enfants-Malades (INEM - UM 111 (UMR 8253 / U1151)), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-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), 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), Biologie des maladies cardiovasculaires = Biology of Cardiovascular Diseases, Université de Bordeaux (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), CHU Estaing [Clermont-Ferrand], CHU Clermont-Ferrand, Centre Hospitalier Edouard Herriot-Lyon, CHU Amiens-Picardie, HEMATIM - Hématopoïèse et immunologie - UR UPJV 4666 (HEMATIM), Université de Picardie Jules Verne (UPJV)-CHU Amiens-Picardie-Institut National de la Santé et de la Recherche Médicale (INSERM), Service de médecine interne (Med Int - BESANCON), Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon), Hospices Civils de Lyon (HCL), Hôpital de la Croix-Rousse [CHU - HCL], Université Claude Bernard Lyon 1 (UCBL), Université de Lyon, Medipole De Savoie, Service de Médecine Interne [Pau], Centre hospitalier de Pau, Service d'hématologie, and Centre Hospitalier Universitaire de Toulouse (CHU Toulouse)

Subjects
ITP, TPO-RA, Hematology, immunosuppressive drug, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology, combination therapy
Abstract

International audience; Combining drugs could be an effective option for treating multirefractory ITP, that is, patients not responding to rituximab, thrombopoietin receptor agonists (TPO-RA) and splenectomy. We conducted a retrospective, multicenter, observational study including multirefractory ITP patients who received a combination of a TPO-RA and an immunosuppressive drug. We included 39 patients (67% women, median age 59 years [range 21-96]), with a median ITP duration of 57 months [3-393] and a median platelet count at initiation of 10 × 109 /L [1-35]. The combination regimen was given for a median duration of 12 months [1-103] and included eltrombopag (51%) or romiplostim (49%), associated with mycophenolate mofetil (54%), azathioprine (36%), cyclophosphamide (5%), cyclosporin (3%) or everolimus (3%). Overall, 30 patients (77%) achieved at least a response (platelet count ≥30 × 109 /L and at least doubling baseline during at least 3 months), including 24 complete responses (platelet count >100 × 109 /L during at least 3 months) with a median time to response of 30 days [7-270] and a median duration of response of 15 months [4-63]. Severe adverse event related to ITP treatment was observed in 31%. In conclusion, this study confirms that some patients with multirefractory ITP can achieve long lasting response with this combination.

Published
2023

13. Artificial intelligence to empower diagnosis of myelodysplastic syndromes by multiparametric flow cytometry

Author

Valentin Clichet, Delphine Lebon, Nicolas Chapuis, Jaja Zhu, Valérie Bardet, Jean-Pierre Marolleau, Loïc Garçon, Alexis Caulier, and Thomas Boyer

Subjects
Hematology
Abstract

The diagnosis of myelodysplastic syndromes (MDS) might be challenging and relies on the convergence of cytological, cytogenetic, and molecular arguments. Multiparametric flow cytometry (MFC) helps diagnose MDS, especially when other features are non-contributory, but remains underestimated mostly due to a lack of standardization of cytometers. We present here an innovative model integrating artificial intelligence (AI) with MFC to improve the diagnosis and the classification of MDS. We develop a machine learning model by elasticnet algorithm trained on a cohort of 191 patients and only based on flow cytometry parameters selected by Boruta algorithm, to build a simple but reliable prediction score with 5 parameters. Our MDS prediction score assisted by AI greatly improves the sensitivity of Ogata score while keeping an excellent specificity validated on an external cohort of 89 patients with an AUC = 0.935. This model allows the diagnosis of both high and low risk MDS with 91.8% sensitivity and 92.5% specificity. Interestingly, it highlights a progressive evolution of the score from clonal hematopoiesis of indeterminate potential (CHIP) to highrisk MDS, suggesting a linear evolution between these different stages. By significantly decreasing the overall misclassification of 52% for patients with MDS and of 31.3% for those without MDS (p=0.02), our AI-assisted prediction score outperforms the Ogata score and positions itself as a reliable tool to help diagnose myelodysplastic syndromes.

Published
2023

14. Prolonged response after TPO-RA discontinuation in primary ITP: results of a prospective multicenter study

Author

Stephanie Guillet, Etienne Crickx, Imane Azzaoui, pascal chappert, Emmanuelle Boutin, Jean-François Viallard, Etienne Riviere, Delphine Gobert, Lionel Galicier, Marion Malphettes, Stéphane Cheze, Francois Lefrere, Sylvain Audia, Bernard Bonnotte, Olivier Lambotte, Nicolas Noel, Olivier Fain, Guillaume Moulis, Mohamed Hamidou, Mathieu Gerfaud-Valentin, Jean-Pierre Marolleau, Louis Terriou, Nihal Martis, Anne-Sophie Morin, Antoinette Perlat, Thomas Le Gallou, Frédérique Roy-Peaud, Ailsa Robbins, Jean-Christophe Lega, Mathieu Puyade, Thibault Comont, Nicolas Limal, Laetitia Languille, Anissa Zarour, Marine Luka, Mickaël Mathieu Ménager, Thibaut Belmondo, Sophie Hue, Florence Canoui-Poitrine, Marc Michel, Bertrand Godeau, Matthieu Mahevas, 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), Immunologie et Neurogénétique Expérimentales et Moléculaires (INEM), Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), CHU Henri Mondor [Créteil], 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), Institut Necker Enfants-Malades (INEM - UM 111 (UMR 8253 / U1151)), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), IMRB - CEPIA/'Clinical Epidemiology And Ageing : Geriatrics, Primary Care and Public Health' [Créteil] (U955 Inserm - UPEC), Institut National de la Santé et de la Recherche Médicale (INSERM)-IFR10-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Institut National de la Santé et de la Recherche Médicale (INSERM)-IFR10-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Hôpital Haut-Lévêque [CHU Bordeaux], CHU Bordeaux [Bordeaux], Université de Bordeaux (UB), 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), CHU Caen, Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN), CHU Necker - Enfants Malades [AP-HP], Service de médecine interne et immunologie clinique (SOC 1) [CHU de Dijon], Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), 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), AP-HP Hôpital Bicêtre (Le Kremlin-Bicêtre), Service de Médecine Interne - Immunologie Clinique [AP-HP Bicêtre], Infectious Diseases Models for Innovative Therapies (IDMIT), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Centre d'investigation clinique de Toulouse (CIC 1436), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Pôle Santé publique et médecine publique [CHU Toulouse], Centre Hospitalier Universitaire de Toulouse (CHU Toulouse)-Centre Hospitalier Universitaire de Toulouse (CHU Toulouse), Centre hospitalier universitaire de Nantes (CHU Nantes), Centre de Recherche en Transplantation et Immunologie - Center for Research in Transplantation and Translational Immunology (U1064 Inserm - CR2TI), Institut National de la Santé et de la Recherche Médicale (INSERM)-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, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ), Institut de transplantation urologie-néphrologie (ITUN), Université de Nantes (UN)-Centre hospitalier universitaire de Nantes (CHU Nantes), Hospices Civils de Lyon (HCL), CHU Amiens-Picardie, HEMATIM - Hématopoïèse et immunologie - UR UPJV 4666 (HEMATIM), and Université de Picardie Jules Verne (UPJV)-CHU Amiens-Picardie-Institut National de la Santé et de la Recherche Médicale (INSERM)

Subjects
Immunology, Cell Biology, Hematology, Biochemistry, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract

Sustained response off-treatment (SROT) after thrombopoietin receptor agonist (TPO-RA) discontinuation has been reported in ITP. This prospective multicenter interventional study enrolled adults with persistent or chronic primary ITP and complete response on TPO-RAs. The primary endpoint was the proportion of patients achieving SROT (platelet count > 30x109/L and no bleeding) at W24 with no other ITP-specific medications. Secondary endpoints included the proportion of sustained complete response off-treatment (SCROT, platelet count > 100x109/L and no bleeding) and SROT at W52, bleeding events, and pattern of response to a new course of TPO-RAs. We included 48 patients with median (IQR) age 58.5 years (41-73.5); 30/48 (63%) had chronic ITP at TPO-RA initiation. In the intention-to-treat analysis, 27/48 (56.2%, 95% CI, 41.2-70.5) achieved SROT; 15/48 (31.3%; 95% CI, 18.9-44.5) achieved SCROT at W24, and 25/48 (52.1%; 95% CI, 37.2-66.7) achieved respectively SROT and 14/48 (29.2%; 95% CI, 17.2-42.3) SCROT at W52. No severe bleeding episode occurred in patients who relapsed. Among patients re-challenged with TPO-RA, 11/12 achieved CR. We found no significant clinical predictors of SROT at W24. Single-cell RNA-seq revealed enrichment of a "TNFα signaling via NF-κB" signature in CD8+ T cells of patients with no sustained response after TPO-RA discontinuation, which was further confirmed by a significant overexpression of CD69 on CD8+ T cells at baseline in these patients as compared with those achieving SCROT/SROT. Our results strongly support a strategy based of progressive tapering and discontinuation of TPO-RAs for patients with chronic ITP who achieved a stable CR on treatment. Clinical trial number: NCT03119974

Published
2023

15. A randomised phase <scp>II</scp> study of azacitidine ( <scp>AZA</scp> ) alone or with Lenalidomide ( <scp>LEN</scp> ), Valproic acid ( <scp>VPA</scp> ) or Idarubicin ( <scp>IDA</scp> ) in <scp>higher‐Risk MDS</scp> or low blast <scp>AML</scp> : <scp>GFM</scp> 's 'pick a winner' trial, with the impact of somatic mutations

Author

Lionel Adès, Nicolas Duployez, Agnes Guerci‐Bresler, Kamel Laribi, Pierre Peterlin, Norbert Vey, Sylvain Thepot, Stefan Wickenhauser, Hacene Zerazhi, Aspassia Stamatoullas, Eric Wattel, Christian Recher, Andrea Toma, Sophie Dimicoli‐Salazar, Thorsten Braun, Odile Beyne‐Rauzy, Jean‐Pierre Marolleau, Stéphane Cheze, Sophie Park, Thomas Cluzeau, Stanislas Nimubona, Dominique Bordessoule, Riad Benramdane, Bruno Quesnel, Shanti Amé, Stéphane de Botton, Fathia Chermat, Claude Preudhomme, Sylvie Chevret, and Pierre Fenaux

Subjects
Hematology
Published
2022

16. JAK2 allele burden is correlated with a risk of venous but not arterial thrombosis

Author

Simon, Soudet, Gaelle, Le Roy, Estelle, Cadet, Audrey, Michaud, Pierre, Morel, Jean Pierre, Marolleau, and Marie Antoinette, Sevestre

Subjects
Aged, 80 and over, Venous Thrombosis, Myeloproliferative Disorders, Mutation, Humans, Thrombosis, Hematology, Janus Kinase 2, Middle Aged, Alleles, Aged
Abstract

Thrombosis is the main complication in myeloproliferative neoplasms (MPN). A JAK2V617F mutation has been shown to be a risk factor for thrombosis. The implication of other risk factors alongside a mutation allele burden needs to be clarified (Trifa et al., 2018; Borowczyk et al., 2015).Our aim was to investigate the role of the JAK2 mutation allele burden in the risk of cardiovascular events (CVE) and/or venous thrombosis (VTE) in a cohort of patients with confirmed MPN, as well as in patients without confirmed MPN.We restrospectively included all consecutive patients who were positive for JAK2V617F seen by our unit between December 2008 and September 2016. Inclusion criteria were a positive test for the JAK2V617F mutation, with at least 1% allele burden, with or without confirmed MPN.We included 239 patients of median age 71 years [60-81], followed-up for a median of 82.8 months [41.08-146.88]. For JAK2V617F positive patients having an allele burden superior to 50% the cumulative incidence of VTE was significantly higher than for those with an allele burden inferior to 50% (HR 3.11 95% CI [1.10-8.76] p = 0.031). The cumulative incidence of VTE was also higher in patients with obesity (HR 4.58 95% CI [1.33-15.8] p = 0.016). There was no significant association between a JAK2V617F allele burden and arterial thrombosis (manifesting as CVE). Previous VTE was also associated with a higher cumulative incidence of recurrence during follow-up HR 3.22 95% CI [1.17-8.81] p = 0.0231.We show that a JAK2V617F allele burden is associated with risk of VTE but not with CVE.

Published
2022

19. Momelotinib versus danazol in symptomatic patients with anaemia and myelofibrosis (MOMENTUM):results from an international, double-blind, randomised, controlled, phase 3 study

Author

Srdan Verstovsek, Aaron T Gerds, Alessandro M Vannucchi, Haifa Kathrin Al-Ali, David Lavie, Andrew T Kuykendall, Sebastian Grosicki, Alessandra Iurlo, Yeow Tee Goh, Mihaela C Lazaroiu, Miklos Egyed, Maria Laura Fox, Donal McLornan, Andrew Perkins, Sung-Soo Yoon, Vikas Gupta, Jean-Jacques Kiladjian, Nikki Granacher, Sung-Eun Lee, Luminita Ocroteala, Francesco Passamonti, Claire N Harrison, Barbara J Klencke, Sunhee Ro, Rafe Donahue, Jun Kawashima, Ruben Mesa, Adi Shacham Abulafia, Bjorn Andreasson, Anna Angona, Rosa Ayala, Soo-Mee Bang, Bruce Bank, Fiorenza Barraco, Eloise Beggiato, Fleur Samantha Benghiat, MassimiliaNo Bonifacio, Claire Bories, Gabriela Borsaru, Mette Brabrand, Andrei Braester, Andes Broliden, Veronika Buxhofer-Ausch, Nathalie Cambier, Marianna Caramella, Benjamin Carpentier, Nicola Cascavilla, Maria Giraldo Castellano, Hung Chang, Chih-Cheng Chen, June-Won Cheong, Yunsuk Choi, Philip Choi, Maria Teresa Corsetti, Isabel Montero Cuadrado, Julia Cunningham, Gandhi Laurent Damaj, Valerio De Stefano, Robert Delage, Regina Garcĺa Delgado, Jose Miguel Torregrosa Diaz, Péter Dombi, Viviane Dubruille, Miklós Egyed, Daniel El Fassi, Anna Elinder-Camburn, Elena Maria Elli, Martin Ellis, Carmen Fava, Salman Fazal, Angela Fleischman, Lynda Foltz, Laura Fox, Nashat Gabrail, Jose Valentĺn Garcĺa-Gutiérrez, Aaron Gerds, Stephane Girault, Heinz Gisslinger, Alexandru Gluvacov, Joachim Göthert, Evgeni (Evgueniy) Hadjiev (Hadzhiev), Kaoutar Hafraoui, Aryan Hamed, Claire Harrison, Hans Hasselbalch, Hanns Hauser, Mark Heaney, Holger Hebart, Jesus Maria Hernandez Rivas, Victor Higuero Saavedra, Christopher Hillis, Hsin-An Hou, Jonathan How, Daniel Huang, Marek Hus, Arpad Illés, Alessandro Isidori, Vadim Ivanov, Peter Johansson, Chul Won Jung, Ilya Kirgner, Maya Koren-Michowitz, Steffen Koschmieder, Szabolcs Ors Kosztolanyi, Natalia Kreiniz, Andrew Kuykendall, Jonathan Lambert, Kamel Laribi, Axelle Lascaux, Noa Lavie, Mihaela Lazaroiu, Michael Leahy, Ewa Lech-Maranda, Won Sik Lee, Ollivier Legrand, Roberto Lemoli, James Liang, Sung-Nam Lim, Michael Loschi, Alessandro Lucchesi, Ioan Macarie, Jean-Pierre Marolleau, Maurizio Martelli, Jiri Mayer, James McCloskey, Christopher McDermott, Brandon McMahon, Priyanka Mehta, Gábor Mikala, Dragana Milojkovic, Philippe Mineur, Elena Mishchenko, Joon Ho Moon, Zsolt Nagy, Srinivasan Narayanan, Casey O'Connell, Stephen Oh, Mario Ojeda-Uribe, Kiat Hoe Ong, Folashade Otegbeye, Jeanne Palmer, Fabrizio Pane, Andrea Patriarca, Giuseppe Pietrantuono, Mark Plander, Uwe Platzbecker, Ritam Prasad, Witold Prejzner, Tobias Rachow, Atanas Radinoff, László Rejtő, Ciro Rinaldi, Tadeusz Robak, Maria Angeles Fernandez Rodriguez, Aaron Ronson, David Ross, Tomasz Sacha, Parvis Sadjadian, Antonio Salar, Guillermo Sanz Santillana, Christof Scheid, Aline Schmidt, Marianne Tang Severinsen, Vera Stoeva, Paweł Szwedyk, Mario Tiribelli, Karolin Trautmann-Grill, Amy Trottier, Nikolay Tzvetkov, Janusz van Droogenbroeck, Alessandro Vannucchi, Nicola Vianelli, Nikolas von Bubnoff, Dominik Wolf, Dariusz Woszczyk, Tomasz Woźny, Tomasz Wróbel, Blanca Xicoy, and Su-Peng Yeh

Subjects
Anemia/drug therapy, Treatment Outcome, Double-Blind Method, Janus Kinase Inhibitors/therapeutic use, Danazol/adverse effects, Humans, Primary Myelofibrosis/complications, General Medicine
Abstract

BACKGROUND: Janus kinase (JAK) inhibitors approved for myelofibrosis provide spleen and symptom improvements but do not meaningfully improve anaemia. Momelotinib, a first-in-class inhibitor of activin A receptor type 1 as well as JAK1 and JAK2, has shown symptom, spleen, and anaemia benefits in myelofibrosis. We aimed to confirm the differentiated clinical benefits of momelotinib versus the active comparator danazol in JAK-inhibitor-exposed, symptomatic patients with anaemia and intermediate-risk or high-risk myelofibrosis.METHODS: MOMENTUM is an international, double-blind, randomised, controlled, phase 3 study that enrolled patients at 107 sites across 21 countries worldwide. Eligible patients were 18 years or older with a confirmed diagnosis of primary myelofibrosis or post-polycythaemia vera or post-essential thrombocythaemia myelofibrosis. Patients were randomly assigned (2:1) to receive momelotinib (200 mg orally once per day) plus danazol placebo (ie, the momelotinib group) or danazol (300 mg orally twice per day) plus momelotinib placebo (ie, the danazol group), stratified by total symptom score (TSS; FINDINGS: 195 patients were randomly assigned to either the momelotinib group (130 [67%]) or danazol group (65 [33%]) and received study treatment in the 24-week randomised treatment period between April 24, 2020, and Dec 3, 2021. A significantly greater proportion of patients in the momelotinib group reported a 50% or more reduction in TSS than in the danazol group (32 [25%] of 130 vs six [9%] of 65; proportion difference 16% [95% CI 6-26], p=0·0095). The most frequent grade 3 or higher treatment-emergent adverse events with momelotinib and danazol were haematological abnormalities by laboratory values: anaemia (79 [61%] of 130 vs 49 [75%] of 65) and thrombocytopenia (36 [28%] vs 17 [26%]). The most frequent non-haematological grade 3 or higher treatment-emergent adverse events with momelotinib and danazol were acute kidney injury (four [3%] of 130 vs six [9%] of 65) and pneumonia (three [2%] vs six [9%]).INTERPRETATION: Treatment with momelotinib, compared with danazol, resulted in clinically significant improvements in myelofibrosis-associated symptoms, anaemia measures, and spleen response, with favourable safety. These findings support the future use of momelotinib as an effective treatment in patients with myelofibrosis, especially in those with anaemia.FUNDING: Sierra Oncology.

Published
2023

21. Chronic Lymphocytic Leukemia B-Cell Normal Cellular Counterpart: Clues From a Functional Perspective

Author

Walaa Darwiche, Brigitte Gubler, Jean-Pierre Marolleau, and Hussein Ghamlouch

Subjects
chronic lymphocytic leukemia B-cell, chronic lymphocytic leukemia, B-cell subsets, B-cell differentiation, normal cellular counterpart, transitional B cell, Immunologic diseases. Allergy, RC581-607
Abstract

Chronic lymphocytic leukemia (CLL) is characterized by the clonal expansion of small mature-looking CD19+ CD23+ CD5+ B-cells that accumulate in the blood, bone marrow, and lymphoid organs. To date, no consensus has been reached concerning the normal cellular counterpart of CLL B-cells and several B-cell types have been proposed. CLL B-cells have remarkable phenotypic and gene expression profile homogeneity. In recent years, the molecular and cellular biology of CLL has been enriched by seminal insights that are leading to a better understanding of the natural history of the disease. Immunophenotypic and molecular approaches (including immunoglobulin heavy-chain variable gene mutational status, transcriptional and epigenetic profiling) comparing the normal B-cell subset and CLL B-cells provide some new insights into the normal cellular counterpart. Functional characteristics (including activation requirements and propensity for plasma cell differentiation) of CLL B-cells have now been investigated for 50 years. B-cell subsets differ substantially in terms of their functional features. Analysis of shared functional characteristics may reveal similarities between normal B-cell subsets and CLL B-cells, allowing speculative assignment of a normal cellular counterpart for CLL B-cells. In this review, we summarize current data regarding peripheral B-cell differentiation and human B-cell subsets and suggest possibilities for a normal cellular counterpart based on the functional characteristics of CLL B-cells. However, a definitive normal cellular counterpart cannot be attributed on the basis of the available data. We discuss the functional characteristics required for a cell to be logically considered to be the normal counterpart of CLL B-cells.

Published
2018
Full Text
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22. In Adults with Ph-Negative Acute Lymphoblastic Leukemia (ALL), Age-Adapted Chemotherapy Intensity and MRD-Driven Transplant Indication Significantly Reduces Treatment-Related Mortality (TRM) and Improves Overall Survival - Results from the Graall-2014 Trial

Author

Nicolas Boissel, Francoise Huguet, Thibaut Leguay, Hunault-Berger Mathilde, Carlos Graux, Yves Chalandon, Eric Delabesse, Yosr Hicheri, Patrice Chevallier, Marie Balsat, Cedric Pastoret, Martine Escoffre-Barbe, Florence Pasquier, Jean-Pierre Marolleau, Anne Thiebaut-Bertrand, Anne Huynh, Nathalie Dhedin, Emilie Lemasle, Caroline Bonmati, Sébastien Maury, Gaëlle Guillerm, Anna Berceanu, Urs Schanz, Thomas Cluzeau, Pascal Turlure, Philippe Rousselot, Bernard J.M. De Prijck, Nathalie Grardel, Marie C Bene, Marine Lafage, Norbert Ifrah, Veronique Lheritier, Vahid Asnafi, Emmanuelle Clappier, Herve Dombret, Hopital Saint-Louis [AP-HP] (AP-HP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Recherche clinique appliquée à l'hématologie (URP_3518), Université Paris Cité (UPCité), Institut de Recherche Saint-Louis - Hématologie Immunologie Oncologie (Département de recherche de l’UFR de médecine, ex- Institut Universitaire Hématologie-IUH) (IRSL), Institut Universitaire du Cancer de Toulouse - Oncopole (IUCT Oncopole - UMR 1037), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Centre Hospitalier Universitaire de Toulouse (CHU Toulouse)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre Hospitalier Universitaire de Toulouse (CHU Toulouse), CHU Bordeaux [Bordeaux], Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM), CHU UCL Namur, Hôpitaux Universitaires de Genève (HUG), Service Hématologie - IUCT-Oncopole [CHU Toulouse], Pôle Biologie [CHU Toulouse], Centre Hospitalier Universitaire de Toulouse (CHU Toulouse)-Centre Hospitalier Universitaire de Toulouse (CHU Toulouse)-Pôle IUCT [CHU Toulouse], Institut Paoli-Calmettes, Fédération nationale des Centres de lutte contre le Cancer (FNCLCC), Centre hospitalier universitaire de Nantes (CHU Nantes), Centre Hospitalier Lyon Sud [CHU - HCL] (CHLS), Hospices Civils de Lyon (HCL), CHU Pontchaillou [Rennes], Microenvironment and B-cells: Immunopathology,Cell Differentiation, and Cancer (MOBIDIC), Université de Rennes (UR)-Etablissement français du sang [Rennes] (EFS Bretagne)-Institut National de la Santé et de la Recherche Médicale (INSERM), Dynamique moléculaire de la transformation hématopoïétique (Dynamo), Institut Gustave Roussy (IGR)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris-Saclay, Institut Gustave Roussy (IGR), CHU Amiens-Picardie, Centre Hospitalier Universitaire [Grenoble] (CHU), Centre de Lutte Contre le Cancer Henri Becquerel Normandie Rouen (CLCC Henri Becquerel), Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Hôpital Henri Mondor, Centre Hospitalier Régional Universitaire de Brest (CHRU Brest), Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon), University hospital of Zurich [Zurich], Centre Hospitalier Universitaire de Nice (CHU Nice), Université Côte d'Azur (UCA), CHU Limoges, Centre Hospitalier de Versailles André Mignot (CHV), CHU Sart Tilman [Liege, Belgium], CHU Lille, Hôpital de la Timone [CHU - APHM] (TIMONE), Aix Marseille Université (AMU), CHU d'Angers [Département Urgences], PRES Université Nantes Angers Le Mans (UNAM)-PRES Université Nantes Angers Le Mans (UNAM), Coordination du Groupe GRAALL [CH Lyon-Sud], Hospices Civils de Lyon (HCL)-Hospices Civils de Lyon (HCL), Institut Necker Enfants-Malades (INEM - UM 111 (UMR 8253 / U1151)), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), CHU Necker - Enfants Malades [AP-HP], Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre Hospitalier Universitaire de Toulouse (CHU Toulouse)-Institut National de la Santé et de la Recherche Médicale (INSERM), and DESSAIVRE, Louise

Subjects
[SDV.MHEP] Life Sciences [q-bio]/Human health and pathology, Immunology, Cell Biology, Hematology, Biochemistry, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract

International audience; Background During the 2005-2014 period, the GRAALL conducted the GRAALL-2005 trial in patients (pts) with Philadelphia chromosome (Ph)-negative ALL aged 18-59y. In this trial, all pts received a pediatric-inspired chemotherapy, whatever their age. Post-hoc analysis revealed an unacceptable TRM in pts aged 45-59y (Huguet et al. J Clin Oncol 2018; 36:2514-23). Allogeneic hematopoietic stem cell transplantation (HSCT) was offered in first complete remission (CR) to most CR pts, defined at high-risk (HR) by at least one baseline clinical or biological HR factor (CNS involvement, complex karyotype [≥5 abns.], low hypodiploidy/near triploidy, poor early blast clearance, late CR, as well as WBC ≥ 30x109/L, lack of CD10 expression, KMT2A rearrangement or TCF3::PBX1 fusion for B-cell precursor [BCP] ALL). Minimal residual disease (MRD) response was not considered for HSCT indication at that time.In the next GRAALL-2014 trial conducted in a similar population, we introduced two major changes in the treatment strategy. First, chemotherapy intensity (steroids, anthracycline and L-asparaginase) was reduced in pts aged 45-59y to decrease excessive TRM. Secondly, the indication for HSCT was modified, relying on IG/TR MRD response only (post-induction MRD ≥10-3 and/or post-consolidation MRD ≥10-4) while not on any former baseline HR criterion. Here, we compare the outcomes of the two trials, focusing on the impact of these two major evolutions.Patients & Methods A total of 743 pts treated in the GRAALL-2014 trial between 2015 and 2020 were compared to the 787 pts from the historical GRAALL-2005 trial, in terms of CR and induction death rates, rate of HSCT in CR1, cumulative incidence of TRM (CITRM) and relapse (CIR), relapse-free (RFS) and overall (OS) survival. It should be noted that two nested Phase 2 trials were introduced by amendment during the GRAALL-2014 course (in 2017 and 2018, respectively), aiming to evaluate post-remission addition of nelarabine and blinatumomab in 87 T-ALL and 94 BCP-ALL selected pts, respectively.Results Main patient characteristics, including age, gender, BCP/T-ALL, WBC, and historical baseline HR features, did not significantly differ between the two trial cohorts, even if CNS disease at diagnosis was more frequent in the 2014 cohort (12 vs 7%, p= 0.001).Outcome comparisons are shown in Table 1. Overall, the induction death rate was significantly reduced in the GRAALL-2014 (3 vs 6%, p= 0.005). As expected, this was only observed in pts aged 44-59y (3 vs 11%, p= 0.001), in whom dose-intensity reduction also translated into a higher need for second induction course (9 vs 5%, p= 0.05) eventually resulting in a higher CR rate (92 vs 86%, p= 0.05). Due to the newly introduced MRD-based stratification, the rate of pts with HSCT indication was markedly reduced (30 vs 65%, p

Published
2022

23. Isolated intraocular relapses of primary cerebral lymphomas: An loc network study

Author

Nadia Younan, Carole Soussain, Sylvain Choquet, Nathalie Cassoux, Valérie Touitou, Anna Schmitt, Olivier Chinot, Lucie Oberic, Gandhi Damaj, Roch Houot, Hervé Ghesquières, Kamel Laribi, Guido Ahle, Luc Taillandier, Jérôme Paillassa, Emmanuel Gyan, Fabrice Jardin, Vincent Delwail, Jean‐Pierre Marolleau, Adrian Tempescul, Philippe Agapé, Marie Bourniquel, Fabienne Vacheret, Ibrahim Jdid, Magali Le Garff‐Tavernier, Denis Malaise, Agusti Alentorn, Khê Hoang Xuan, Caroline Houillier, CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Institut Curie - Saint Cloud (ICSC), Immunité et cancer (U932), Institut Curie [Paris]-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre de recherche de l'Institut Curie [Paris], Institut Curie [Paris], Institut Bergonié [Bordeaux], UNICANCER, Institut de neurophysiopathologie (INP), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Hôpital de la Timone [CHU - APHM] (TIMONE), Institut Universitaire du Cancer de Toulouse - Oncopole (IUCT Oncopole - UMR 1037), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Centre Hospitalier Universitaire de Toulouse (CHU Toulouse)-Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Caen, Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN), Microenvironment and B-cells: Immunopathology,Cell Differentiation, and Cancer (MOBIDIC), Université de Rennes (UR)-Etablissement français du sang [Rennes] (EFS Bretagne)-Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Pontchaillou [Rennes], Centre Hospitalier Lyon Sud [CHU - HCL] (CHLS), Hospices Civils de Lyon (HCL), Centre Hospitalier Le Mans (CH Le Mans), Service de Neurologie [Hôpitaux Civils de Colmar], Hôpitaux Civils Colmar, Centre de Recherche en Automatique de Nancy (CRAN), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM), Hôpital Bretonneau, Centre Hospitalier Régional Universitaire de Tours (CHRU Tours), Génomique et Médecine Personnalisée du Cancer et des Maladies Neuropsychiatriques (GPMCND), Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre de Lutte Contre le Cancer Henri Becquerel Normandie Rouen (CLCC Henri Becquerel), CIC - Poitiers, Université de Poitiers-Centre hospitalier universitaire de Poitiers (CHU Poitiers)-Direction Générale de l'Organisation des Soins (DGOS)-Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Amiens-Picardie, HEMATIM - Hématopoïèse et immunologie - UR UPJV 4666 (HEMATIM), Université de Picardie Jules Verne (UPJV)-CHU Amiens-Picardie-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre Hospitalier Régional Universitaire de Brest (CHRU Brest), Institut de Cancérologie de l'Ouest [Angers/Nantes] (UNICANCER/ICO), Hopital d'instruction des armées Sainte-Anne [Toulon] (HIA), Service d'Hématologie [CH Perpignan], CH Perpignan, CHU Orléans, Département d'Oncologie Chirurgicale [Institut Curie], Laboratoire d'Imagerie Translationnelle en Oncologie (LITO ), 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), DESSAIVRE, Louise, Service d'Onco-neurologie = Département de neurologie 2 [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 d'Ophtalmologie [CHU Pitié-Salpêtrière], Service de Biochimie Métabolique [CHU Pitié-Salpêtrière], and Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre Hospitalier Universitaire de Toulouse (CHU Toulouse)-Institut National de la Santé et de la Recherche Médicale (INSERM)

Subjects
relapse, Cancer Research, [SDV.MHEP] Life Sciences [q-bio]/Human health and pathology, primary CNS lymphoma, Oncology, [SDV.CAN] Life Sciences [q-bio]/Cancer, ocular lymphoma, hemic and lymphatic diseases, [SDV.CAN]Life Sciences [q-bio]/Cancer, Hematology, General Medicine, prognosis, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract

Most relapses of primary central nervous system lymphoma (PCNSL) occur in the brain and are associated with a poor prognosis. Isolated intraocular relapses (IIORs) are rare and poorly described. We retrospectively selected from the French Lymphome Oculo-Cérébral database PCNSL patients who initially presented with cerebral localization and who experienced IIOR during the course of the disease. Of the 1472 patients included in the database, 55 patients presented an IIOR. Their median age was 68 years, and median Karnofsky Performance Status 80. IL-10 levels in the aqueous humor and/or in the vitreous were increased in 42/46 patients. 45/55 patients received systemic chemotherapy, and 11/55 received high-dose chemotherapy with autologous stem cell transplantation (HCT-ASCT) as consolidation treatment. After a median follow-up of 69 months, 42/55 patients had relapsed, including 90% of the patients who did not receive HCT-ASCT at IIOR and 40% of the patients who received HCT-ASCT at IIOR (p 0.001). The first relapse after the initial IIOR was exclusively in the eye in 23/42 patients, and 29/42 patients had a subsequent brain relapse during the course of the disease. The median progression-free survival, brain-free survival and overall survival from IIOR were 12.2, 48.6 and 57.1 months, respectively. Isolated intraocular relapse is not exceptional in the course of PCNSL and deserves systematic ophthalmological follow-up. Its prognosis is much better than the prognosis of brain relapse, with an evolution close to that of primary vitreoretinal lymphoma. With the exception of patients who received HCT-ASCT at IIOR, almost all patients subsequently relapsed, often with other IIORs.

Published
2022

25. Improved survival in multiple myeloma during the 2005–2009 and 2010–2014 periods

Author

Claudine Sohn, Denis Caillot, Intergroupe Francophone du Myelome, Valentine Richez, Lauriane Clement-Filliatre, Hervé Avet-Loiseau, Lionel Karlin, Karim Belhadj, Philippe Collet, Mourad Tiab, Philippe Moreau, Mamoun Dib, Sabine Brechignac, Jean Fontan, Borane Slama, Cyrille Hulin, François Lifermann, Margaret Macro, Thierry Facon, Mohamad Mohty, Philippe Rey, Hélène Demarquette, Aurore Perrot, Jill Corre, Clara Mariette, Anne-Marie Stoppa, Xavier Leleu, Frédérique Orsini-Piocelle, Laurent Voillat, and Jean-Pierre Marolleau

Subjects
Oncology, Cancer Research, medicine.medical_specialty, business.industry, MEDLINE, Improved survival, Signs and symptoms, Hematology, medicine.disease, Text mining, Internal medicine, medicine, business, Multiple myeloma
Published
2021

26. HDAC6 regulates human erythroid differentiation through modulation of JAK2 signalling

Author

Pascal Vong, Kahia Messaoudi, Nicolas Jankovsky, Cathy Gomilla, Yohann Demont, Alexis Caulier, Guillaume Jedraszak, Julien Demagny, Stefan Djordjevic, Thomas Boyer, Jean Pierre Marolleau, Jacques Rochette, Hakim Ouled‐Haddou, and Loïc Garçon

Subjects
Molecular Medicine, Cell Biology
Abstract

Among histone deacetylases, HDAC6 is unusual in its cytoplasmic localization. Its inhibition leads to hyperacetylation of non-histone proteins, inhibiting cell cycle, proliferation and apoptosis. Ricolinostat (ACY-1215) is a selective inhibitor of the histone deacetylase HDAC6 with proven efficacy in the treatment of malignant diseases, but anaemia is one of the most frequent side effects. We investigated here the underlying mechanisms of this erythroid toxicity. We first confirmed that HDAC6 was strongly expressed at both RNA and protein levels in CD34

Published
2022

27. Optical genome mapping, a promising alternative to gold standard cytogenetic approaches in a series of acute lymphoblastic leukemias

Author

Jean-Pierre Marolleau, Guillaume Jedraszak, Catherine Devoldere, Nicolas Duployez, Isabelle Luquet, Michaela West, Dominique Penther, Claude Preudhomme, Hakim Ouled-Haddou, Valentin Lestringant, Coralie Derrieux, Anne Lutun, Yann Ferret, Loïc Garçon, Cancer Heterogeneity, Plasticity and Resistance to Therapies - UMR 9020 - U 1277 (CANTHER), Institut Pasteur de Lille, Réseau International des Instituts Pasteur (RIIP)-Réseau International des Instituts Pasteur (RIIP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lille-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille)-Centre National de la Recherche Scientifique (CNRS), Génomique et Médecine Personnalisée du Cancer et des Maladies Neuropsychiatriques (GPMCND), Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut Universitaire du Cancer de Toulouse - Oncopole (IUCT Oncopole - UMR 1037), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Centre Hospitalier Universitaire de Toulouse (CHU Toulouse)-Institut National de la Santé et de la Recherche Médicale (INSERM), Service d'immuno-hématologie pédiatrique [CHU Necker], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), CHU Amiens-Picardie, HEMATIM - Hématopoïèse et immunologie - UR UPJV 4666 (HEMATIM), Université de Picardie Jules Verne (UPJV)-CHU Amiens-Picardie-Institut National de la Santé et de la Recherche Médicale (INSERM), Laboratoire d'Hématologie [CHU Amiens], Service Hydrographique et Océanographique de la Marine (SHOM), Ministère de la Défense, and Université de Picardie Jules Verne (UPJV)

Subjects
Adult, Male, Cancer Research, medicine.medical_specialty, Adolescent, DNA Copy Number Variations, [SDV]Life Sciences [q-bio], Computational biology, Biology, Polymorphism, Single Nucleotide, Translocation, Genetic, Young Adult, 03 medical and health sciences, 0302 clinical medicine, Gene mapping, Biomarkers, Tumor, Genetics, medicine, Humans, Multiplex, Child, Cytogenetics, Chromosome Mapping, Karyotype, Variant allele, Gold standard (test), Precursor Cell Lymphoblastic Leukemia-Lymphoma, Prognosis, Gene Expression Regulation, Neoplastic, Child, Preschool, 030220 oncology & carcinogenesis, Cytogenetic Analysis, Acute lymphoblastic leukemias, Female, Cytogenetic Techniques
Abstract

International audience; Acute lymphoblastic leukemias (ALL) are characterized by a large number of cytogenetic abnormalities of clinical interest that require the use of several complementary techniques. Optical genome mapping (OGM) is based on analysis of ultra-high molecular weight DNA molecules that provides a high-resolution genome-wide analysis highlighting copy number and structural anomalies, including balanced translocations. We compared OGM to standard techniques (karyotyping, fluorescent in situ hybridization, single nucleotide polymorphism-array and reverse transcription multiplex ligation-dependent probe amplification) in 10 selected B or T-ALL. Eighty abnormalities were found using standard techniques of which 72 (90%) were correctly detected using OGM. Eight discrepancies were identified, while 12 additional anomalies were found by OGM. Among the discrepancies, four were detected in raw data but not retained because of filtering issues. However, four were truly missed, either because of a low variant allele frequency or because of a low coverage of some regions. Of the additional anomalies revealed by OGM, seven were confirmed by another technique, some of which are recurrent in ALL such as LMO2-TRA and MYC-TRB fusions. Despite false positive anomalies due to background noise and a case of inter-sample contamination secondarily identified, the OGM technology was relatively simple to use with little practice. Thus, OGM represents a promising alternative to cytogenetic techniques currently performed for ALL characterization. It enables a time and cost effective analysis allowing identification of complex cytogenetic events, including those currently inaccessible to standard techniques.

Published
2021

29. Molecular and clinical diversity in primary central nervous system lymphoma: a LOC Network study

Author

Agusti Alentorn, Isaias Hernández-Verdin, Eva Kirasic, Kirsty Wienand, Sandrine Eimer, Hugues Loiseau, Audrey Rousseau, Jérôme Paillassa, Guido Ahle, Felix Lerintiu, Emmanuelle Uro-Coste, Lucie Oberic, Dominique Figarella-Branger, Olivier Chinot, Guillaume Gauchotte, Luc Taillandier, Jean-Pierre Marolleau, Marc Polivka, Clovis Adam, Renata Ursu, Anna Schimitt, Noemie Barillot, Lucia Nichelli, Fernando Lozano-Sánchez, Maria-José Ibañez-Juliá, Matthieu Peyre, Bertrand Mathon, Yah-se Abada, Frederic Charlotte, Frédéric Davi, Chip Stewart, Aurélien de Reyniès, Sylvain Choquet, Carole Soussain, Caroline Houillier, Bjoern Chapuy, and Khe Hoang-Xuan

Subjects
hemic and lymphatic diseases
Abstract

Primary central nervous system lymphoma (PCNSL) is a distinct extranodal lymphoma presenting with limited stage disease but variable response rates to treatment despite homogenous pathological presentation. The likely underlying molecular heterogeneity and its clinical impact is poorly understood.We performed a comprehensive genome-wide analysis of 147 PCNSL from fresh-frozen tumor tissue from immunocompetent, treatment naïve PCNSL patients, employing whole-exome sequencing, assessment of somatic copy number alterations and DNA methylation, and RNA expression. These data were integrated and correlated with the clinico-radiological characteristics and outcomes of the patients. We validated our results in an independent series of 93 PCNSL formalin-fixed, paraffin-embedded (FFPE) samples.Consensus clustering of multi-omics data identified four robust, non-overlapping, prognostically significant clusters (CS) within PCNSL. The CS1 group, characterized by high proliferation and Polycomb Repressive Complex 2 (PRC2) complex activity had an intermediate outcome between CS2/CS3 and CS4. Patients who had PCNSL with an “immune-hot” (CS4) profile had the most favorable clinical outcome. In contrast, patients with the immune-cold hypermethylated CS2 and the heterogenous-immune CS3 groups had a poor prognosis. Nearly all PCNSL patients with meningeal infiltration harbored HIST1H1E mutations, enriched in the CS3 group. The integrated analysis suggests that the CS4 group may be more susceptible to immunotherapy. The integration of genome-wide data from multi-omics data revealed four molecular patterns in PCNSL with a distinctive prognostic impact that significantly improved the current clinical stratification. This molecular classification using FFPE samples facilitates routine use in clinical practice and provides potential precision-medicine strategies in PCNSL.

Published
2022

30. A new role of glutathione peroxidase 4 during human erythroblast enucleation

Author

Yohann Demont, Delphine Lebon, Roggiero Lopes Dos Santos, Pascal Vong, Hakim Ouled-Haddou, Nicolas Jankovsky, Julien Demagny, Candice Carola, Jessica Platon, Alexis Caulier, Jacques Rochette, Nicolas Guillaume, Jean-Pierre Marolleau, Kahia Messaoudi, Loïc Garçon, HEMATIM - Hématopoïèse et immunologie - UR UPJV 4666 (HEMATIM), Université de Picardie Jules Verne (UPJV)-CHU Amiens-Picardie-Institut National de la Santé et de la Recherche Médicale (INSERM), Hématopoïèse normale et pathologique, Université Paris-Sud - Paris 11 (UP11)-Institut Gustave Roussy (IGR)-Institut National de la Santé et de la Recherche Médicale (INSERM), Université Paris-Sud - Paris 11 (UP11), Centre de Recherche des Cordeliers (CRC (UMR_S_1138 / U1138)), École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Université Paris Cité (UPCité), Institut Universitaire de France (IUF), Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.), Service d'Oncologie Médicale [Institut Hospitalier Franco-Britannique], Division of Medical Oncology - Institut Hospitalier Franco-Britannique, CHU Amiens-Picardie, Hôpital Claude Huriez [Lille], CHU Lille, Service d'hématologie biologique, 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), Laboratoire d'Hématologie [CHU Amiens], and DESSAIVRE, Louise

Subjects
0301 basic medicine, Erythroblasts, [SDV]Life Sciences [q-bio], Membrane lipids, Immunology, Cell, Enucleation, GPX4, medicine.disease_cause, Biochemistry, Filipin, Cell membrane, Mice, 03 medical and health sciences, chemistry.chemical_compound, Red Cells, Iron, and Erythropoiesis, 0302 clinical medicine, Reticulocyte, Erythroblast, medicine, Animals, Ferroptosis, Humans, Erythropoiesis, Lipid raft, chemistry.chemical_classification, Chemistry, Glutathione peroxidase, Cholera toxin, Cell Biology, Hematology, Phospholipid Hydroperoxide Glutathione Peroxidase, Cell biology, [SDV] Life Sciences [q-bio], medicine.anatomical_structure, 030104 developmental biology, 030220 oncology & carcinogenesis, lipids (amino acids, peptides, and proteins), Selenoprotein, 030215 immunology
Abstract

The Gluthation peroxidase (GPX) enzymes are part of the protective system against lipid peroxydation that includes prevention of oxydation and reduction of already oxidized lipid through enzymatic reactions catalyzed by GSH. GPX4 is one of the five GPX able to incorporate selenium. It is also the only GPX able to directly reduce in the membrane the oxidized fatty acids and cholesterol. Recent reports identified GPX4 as the central inhibitor of ferroptosis, a process during which iron-induced peroxydation of membrane lipids causes a specific cell death that can be reverted by lipophilic antioxydants or by iron chelators. GPX4 has recently been involved during mice erythropoiesis: GPX4-/-mice present a hemolytic anemia and a high apoptotic rate in spleen erythroid progenitors. Although transcriptomics and proteomics found it expressed in human erythroid precursors, its role during human erythropoiesis has not been described. Using an in-vitroerythroid differentiation protocol from CD34+cells obtained from apheresis, we confirmed that GPX4 expression was induced at RNA and protein level during differentiation. RSL3, a specific GPX4 inhibitor, didn't affect early steps of erythropoiesis (i.eclonogenic potential and progenitor amplification) nor the early maturation of erythroid precursors (assessed by sequential CD49d/CD235/CD71 staining) but led to a significant decrease in the enucleation rate as assessed by Hoechst staining using flow cytometry (74%±9 DMSO versus 35%±6 RSL3, p Using Western Blot, we observed that RSL3 exposure induced a strong GPX4 depletion in erythroid progenitors while it didn't affect GPX1, another member of the GPX family expressed in erythroid cells. In order to confirm that enucleation defect was related to GPX4 knockdown, we used an Sh-RNA strategy that allowed a 62%±6 GPX4 decrease at RNA level and a 46%±5 at protein level. We observed a significant defect in terminal enucleation in the cells transduced with shGPX4-lentiviruses in comparison with sh-Scramble (59%±5 Sh-Scr versus 39%±6 Sh-Gpx4, p We investigated then whether GPX4-knock-down affected quantitatively or qualitatively the membrane lipid content, which was shown to be involved in the enucleation process. Addition of Cholesterol to RSL3 in the medium partially restored the enucleation rate. However, lipidomics failed to show any significant difference in the total membrane lipid content (and particularly in the cholesterol content) after RSL3 exposure in comparison to DMSO. Since cholesterol is particularly abundant in the lipid rafts, we investigated whether the lipid distribution was qualitatively altered within the cell membrane. We observed a disruption of membrane lipid rafts when cells were exposed to RSL3, as shown by a 60%±12 decrease in the mean cholera toxin fluorescence intensity. GPX4 presence in lipid rafts was confirmed using immunofluorescence showing their co-localization at cell surface in human primary erythroblasts. Since lipid rafts play a role in the contractile ring that separates pyrenocyte from reticulocyte, we evaluated the myosin-light chain phosphorylation using flow cytometry and Western Blot and found it drastically decreased in GPX4-knockdown conditions. In summary, we identified GPX4 as a new actor of human terminal erythroid differentiation, independently to its function in ferroptosis control. We described its interaction at cell surface with lipid rafts that are required for the assembly of the contractile ring and cytokinesis leading to the nucleus extrusion. Disclosures No relevant conflicts of interest to declare.

Published
2020

31. Progressive multifocal leukoencephalopathy: MRI findings in HIV-infected patients are closer to rituximab- than natalizumab-associated PML

Author

Caroline Papeix, Elisabeth Maillart, Morgane Solis, Caroline Houillier, Philippe Kerschen, Manel Alleg, Jerome Tamburini Bonnefoy, Xavier Roussel, Bertrand Bourre, Céline Kennel, Stéphane Kremer, Jean-Pierre Marolleau, Philippe Agape, Guido Ahle, Adrien Chauchet, François Cotton, Alexis Caulier, Xavier Leclerc, Patrick Vermersch, Cécile Chabrot, Béatrice Claise, Guillaume Martin-Blondel, Sandra Malak, Samira Fafi-Kremer, Seyyid Baloglu, Jérôme De Seze, Fabrice Bonneville, Jean-Pierre Pruvo, Les Hôpitaux Universitaires de Strasbourg (HUS), Laboratoire de Virologie [Strasbourg], Centre Hospitalier Lyon Sud [CHU - HCL] (CHLS), Hospices Civils de Lyon (HCL), Centre de Recherche en Acquisition et Traitement de l'Image pour la Santé (CREATIS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Jean Monnet - Saint-Étienne (UJM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Centre Hospitalier de Luxembourg [Luxembourg] (CHL), CHU Rouen, Normandie Université (NU), Service de Neurologie [Hôpitaux Civils de Colmar], Hôpitaux Civils Colmar, Lille Neurosciences & Cognition - U 1172 (LilNCog), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lille-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Departement de Neuroradiologie [Lille], Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Sorbonne Université (SU), CHU Clermont-Ferrand, Institut Curie - Saint Cloud (ICSC), Service Maladies infectieuses et tropicales [CHU Toulouse], Pôle Inflammation, infection, immunologie et loco-moteur [CHU Toulouse] (Pôle I3LM Toulouse), Centre Hospitalier Universitaire de Toulouse (CHU Toulouse)-Centre Hospitalier Universitaire de Toulouse (CHU Toulouse), Centre de Physiopathologie Toulouse Purpan (CPTP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Service Neuroradiologie Diagnostique et Thérapeutique [CHU Toulouse], Pôle imagerie médicale [CHU Toulouse], Laboratoire d'Hématologie [CHU Amiens], CHU Amiens-Picardie, AP-HP - Hôpital Cochin Broca Hôtel Dieu [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Institut de Cancérologie de l'Ouest [Angers/Nantes] (UNICANCER/ICO), UNICANCER, CHU Limoges, Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon), Hôpital de Hautepierre [Strasbourg], 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), Université Jean Monnet [Saint-Étienne] (UJM)-Hospices Civils de Lyon (HCL)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM), Lille Neurosciences & Cognition - U 1172 (LilNCog (ex-JPARC)), Service de neurologie 1 [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), Service de neurologie 2 [CHU Pitié-Salpêtrière], Institut Curie [Saint-Cloud], Service des maladies infectieuses et tropicales [Toulouse], Hôpital Purpan [Toulouse], CHU Toulouse [Toulouse]-CHU Toulouse [Toulouse]-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Service de neuroradiologie [CHU Toulouse], CHU Toulouse [Toulouse], 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), Université de Strasbourg (UNISTRA), Service de Radiologie (Hôpitaux Universitaires de Strasbourg), Laboratoire de Virologie Médicale [Strasbourg], CHU Strasbourg, Université de Lyon, Centre Hospitalier Universitaire de Rouen, University of Rouen, Rouen, France, University of Lille, Univ. Lille, Inserm, CHU Lille, U1172 - Lille Neurosciences & Cognition, F-59000 Lille, France, Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Lille, Sorbonne Université-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université, Sorbonne Université-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), CHU de Clermont-Ferrand, université Clermont-Auvergne, Service des maladies infectieuses et tropicales[Toulouse], Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-CHU Toulouse [Toulouse]-Hôpital Purpan [Toulouse], Service d'Hématologie Clinique [CHU Amiens], Centre Hospitalier Universitaire de Besançon (CHU Besançon), Service of Neurologie - Centres Mémoire de Ressources et de Recherche (Hôpitaux Universitaires de Strasbourg ) (CMRR), 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, Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Strasbourg (UNISTRA), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Service de Neurologie [CHU Pitié-Salpêtrière], IFR70-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), and Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)

Subjects
MESH: Leukoencephalopathy, Progressive Multifocal* / diagnostic imaging, medicine.medical_specialty, Pathology, medicine.medical_treatment, [SDV]Life Sciences [q-bio], viruses, MESH: Natalizumab / adverse effects, HIV Infections, 030218 nuclear medicine & medical imaging, MESH: Magnetic Resonance Imaging, Lesion, 03 medical and health sciences, 0302 clinical medicine, Natalizumab, [SDV.MHEP.MI]Life Sciences [q-bio]/Human health and pathology/Infectious diseases, Progressive multifocal leukoencephalopathy, medicine, MESH: HIV Infections* / complications, Humans, Radiology, Nuclear Medicine and imaging, Neuroradiology, Retrospective Studies, Chemotherapy, MESH: Humans, business.industry, Leukoencephalopathy, Progressive Multifocal, virus diseases, Brain, Immunosuppression, MESH: Retrospective Studies, General Medicine, MESH: HIV Infections* / drug therapy, medicine.disease, Magnetic Resonance Imaging, MESH: Rituximab / adverse effects, 3. Good health, 030220 oncology & carcinogenesis, MESH: Leukoencephalopathy, Progressive Multifocal* / chemically induced, Rituximab, MESH: Brain / diagnostic imaging, Radiology, medicine.symptom, Neuro, Complication, business, medicine.drug
Abstract

To compare brain MRI findings in progressive multifocal leukoencephalopathy (PML) associated to rituximab and natalizumab treatments and HIV infection. In this retrospective, multicentric study, we analyzed brain MRI exams from 72 patients diagnosed with definite PML: 32 after natalizumab treatment, 20 after rituximab treatment, and 20 HIV patients. We compared T2- or FLAIR-weighted images, diffusion-weighted images, T2*-weighted images, and contrast enhancement features, as well as lesion distribution, especially gray matter involvement. The three PML entities affect U-fibers associated with low signal intensities on T2*-weighted sequences. Natalizumab-associated PML showed a punctuate microcystic appearance in or in the vicinity of the main PML lesions, a potential involvement of the cortex, and contrast enhancement. HIV and rituximab-associated PML showed only mild contrast enhancement, punctuate appearance, and cortical involvement. The CD4/CD8 ratio showed a trend to be higher in the natalizumab group, possibly mirroring a more efficient immune response. Imaging features of rituximab-associated PML are different from those of natalizumab-associated PML and are closer to those observed in HIV-associated PML. • Nowadays, PML is emerging as a complication of new effective therapies based on monoclonal antibodies. • Natalizumab-associated PML shows more inflammatory signs, a perivascular distribution “the milky way,” and more cortex involvement than rituximab- and HIV-associated PML. • MRI differences are probably related to higher levels of immunosuppression in HIV patients and those under rituximab therapy.

Published
2020

32. The combination of a poly‐caprolactone/nano‐hydroxyapatite honeycomb scaffold and mesenchymal stem cells promotes bone regeneration in rat calvarial defects

Author

Sophie Le Ricousse, Anne Hébraud, Fahmi Bedoui, Bernard Devauchelle, Marie Naudot, Louison Collet, Nicolas Jankovsky, Alejandro Garcia Garcia, Jean-Pierre Marolleau, Luciane Zabijak, Cécile Legallais, Soufiane Zakaria Azdad, Anaïs Barre, Guy Schlatter, Biomécanique et Bioingénierie (BMBI), and Université de Technologie de Compiègne (UTC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Male, Scaffold, Bone Regeneration, Materials science, Polyesters, 0206 medical engineering, Nanofibers, Biomedical Engineering, Medicine (miscellaneous), [SDV.BC]Life Sciences [q-bio]/Cellular Biology, 02 engineering and technology, Prosthesis Implantation, Rats, Sprague-Dawley, Biomaterials, 03 medical and health sciences, Animals, [SDV.IB.BIO]Life Sciences [q-bio]/Bioengineering/Biomaterials, Bone regeneration, ComputingMilieux_MISCELLANEOUS, 030304 developmental biology, 0303 health sciences, Tissue Scaffolds, Regeneration (biology), Skull, Mesenchymal stem cell, Honeycomb (geometry), Mesenchymal Stem Cells, X-Ray Microtomography, 020601 biomedical engineering, Electrospinning, Honeycomb structure, Durapatite, Nanofiber, Biomedical engineering
Abstract

Bone tissue engineering goes beyond the limitations of conventional methods of treating bone loss, such as autograft-induced morbidity and a lack of integration for large grafts. Novel biomimicry approaches (using three-dimensional [3D] electrospinning and printing techniques) have been designed to offer the most appropriate environment for cells and thus promote bone regeneration. In the present study, we assessed the bone regeneration properties of a composite 3D honeycomb structure from the electrostatic template assisted deposition (ETAD) process by an alternate deposition of electrospun polycaprolactone (PCL) nanofibers and electrosprayed hydroxyapatite nanoparticles (nHA) on a honeycomb micropatterned substrate. We first confirmed the cytocompatibility of this honeycomb PCL-nHA scaffold in culture with bone-marrow-derived mesenchymal stem cells (BM-MSCs). The scaffold was then implanted (alone or with seeded MSCs) for 2 months in a rat critical-sized calvarial defect model. The observation of new bone synthesis in situ (monitored using micro-computed tomography every 2 weeks and a histological assessment upon extraction) demonstrated that the honeycomb PCL-nHA scaffold was osteoconductive. Moreover, the combination of the scaffold with BM-MSCs was associated with significantly greater bone volume and mineralized regeneration during the 2-month experiment. The combination of the biomimetic honeycomb PCL-nHA scaffold with patient mesenchymal stem cells might therefore have great potential for clinical applications and specifically in maxillofacial surgery.

Published
2020

34. An Alginate-Based Hydrogel with a High Angiogenic Capacity and a High Osteogenic Potential

Author

Jean-Pierre Marolleau, Anaïs Barre, Sophie Le Ricousse, Marie Naudot, Stéphane Lack, Bernard Devauchelle, Fanny Colin, Louison Collet, Henri Sevestre, Chimie Organique et Bioorganique : Réactivité et Analyse (COBRA), Institut de Chimie Organique Fine (IRCOF), Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Université de Rouen Normandie (UNIROUEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut Normand de Chimie Moléculaire Médicinale et Macromoléculaire (INC3M), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Université Le Havre Normandie (ULH), Normandie Université (NU)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Caen Normandie (UNICAEN), Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Biomécanique et Bioingénierie (BMBI), Université de Technologie de Compiègne (UTC)-Centre National de la Recherche Scientifique (CNRS), CHU Amiens-Picardie, Service de Stomatologie et Chirurgie Maxillo-facial [CHU Pitié-Salpêtrière], CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), CHirurgie, IMagerie et REgénération tissulaire de l’extrémité céphalique - Caractérisation morphologique et fonctionnelle - UR UPJV 7516 (CHIMERE), Université de Picardie Jules Verne (UPJV), HEMATIM - Hématopoïèse et immunologie - UR UPJV 4666 (HEMATIM), and Université de Picardie Jules Verne (UPJV)-CHU Amiens-Picardie-Institut National de la Santé et de la Recherche Médicale (INSERM)

Subjects
0303 health sciences, Autologous cell, Chemistry, [SDV]Life Sciences [q-bio], alginate-based hydrogel, 0206 medical engineering, Mesenchymal stem cell, 02 engineering and technology, 020601 biomedical engineering, General Biochemistry, Genetics and Molecular Biology, Bone tissue engineering, Cell biology, Endothelial stem cell, angiogenic and osteogenic capacities, 03 medical and health sciences, ectopic animal model, endothelial cell, Original Research Article, mesenchymal stem cell, 030304 developmental biology
Abstract

International audience; In bone tissue engineering, autologous cells are combined with osteoconductive scaffolds and implanted into bone defects. The major challenge is the lack of post-implantation vascular growth into biomaterial. The objective of the present study was to develop a new alginate-based hydrogel that enhances the regeneration of bone defects after surgery. The viability of human bone marrow-derived mesenchymal stem cells (BM-MSCs) or human endothelial cells (ECs) cultured alone or together on the hydrogel was analyzed for 24 and 96 h. After seeding, the cells self-assembled and aggregated to form clusters. For functional validation, empty or cellularized hydrogel matrices were implanted ectopically at subcutaneous sites in nude mice. After 2 months, the matrices were explanted. Transplanted human cells were present, and we observed vessels expressing human von Willebrand factor (resulting from the incorporation of transplanted ECs into neovessels and/or the differentiation of BM-MSCs into ECs). The addition of BM-MSCs improved host vascularization and neovessel formation from human cells, relative to ECs alone. Although we did not observe bone formation, the transplanted BM-MSCs were able to differentiate into osteoblasts. This new biomaterial provided an appropriate three-dimensional environment for transplanted cells and has a high angiogenic capacity and an osteogenic potential.

Published
2020

35. Epstein‐Barr Virus‐related mucocutaneous ulcer lymphoma associated with Crohn's disease, treated with monoclonal antibody anti‐CD30

Author

Delphine Lebon, Clara Yzet, Jean-Pierre Marolleau, Lydia Montes, Caroline Delette, Mathurin Fumery, Denis Chatelain, and Estelle Tredez

Subjects
CD30, medicine.medical_treatment, Mucocutaneous zone, lcsh:Medicine, Case Report, lymphoma, Case Reports, 030204 cardiovascular system & hematology, medicine.disease_cause, Virus, epstein‐barr virus, 03 medical and health sciences, 0302 clinical medicine, brentuximab vedotin, hemic and lymphatic diseases, medicine, Brentuximab vedotin, lcsh:R5-920, Crohn's disease, immunosuppression, business.industry, lcsh:R, Immunosuppression, General Medicine, medicine.disease, Epstein–Barr virus, Lymphoma, 030220 oncology & carcinogenesis, Immunology, lcsh:Medicine (General), business, medicine.drug
Abstract

Epstein‐Barr virus‐related mucocutaneous ulcer lymphoma is a rare entity promoted by immunosuppression. It is less described in inflammatory bowel diseases, and mostly these are refractory diseases. CD30 acts to Epstein‐Barr virus (EBV) local proliferation and thus could be an interesting target. Brentuximab vedotin could become a new helpful tool.

Published
2020

36. Co‐transplantation of Wharton's jelly mesenchymal stem cell‐derived osteoblasts with differentiated endothelial cells does not stimulate blood vessel and osteoid formation in nude mice models

Author

Andreas A. Mueller, Marie Naudot, Sylvie Testelin, Stéphanie Dakpé, Bernard Devauchelle, Sophie Le Ricousse, Alexandre Caula, Anaïs Barre, Henri Sevestre, Jean Pierre Marolleau, Biomécanique et Bioingénierie (BMBI), Université de Technologie de Compiègne (UTC)-Centre National de la Recherche Scientifique (CNRS), Chimie Organique et Bioorganique : Réactivité et Analyse (COBRA), Institut de Chimie Organique Fine (IRCOF), Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Université de Rouen Normandie (UNIROUEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut Normand de Chimie Moléculaire Médicinale et Macromoléculaire (INC3M), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Université Le Havre Normandie (ULH), Normandie Université (NU)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Caen Normandie (UNICAEN), Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Université de Picardie Jules Verne (UPJV), CHU Amiens-Picardie, Department of maxillo-facial surgery, CHU AMIENS-PICARDIE, Amiens, France, CHirurgie, IMagerie et REgénération tissulaire de l’extrémité céphalique - Caractérisation morphologique et fonctionnelle - UR UPJV 7516 (CHIMERE), Service de Stomatologie et Chirurgie Maxillo-facial [CHU Pitié-Salpêtrière], CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), HEMATIM - Hématopoïèse et immunologie - UR UPJV 4666 (HEMATIM), and Université de Picardie Jules Verne (UPJV)-CHU Amiens-Picardie-Institut National de la Santé et de la Recherche Médicale (INSERM)

Subjects
Calcium Phosphates, Bone Regeneration, Stromal cell, Angiogenesis, [SDV]Life Sciences [q-bio], Biomedical Engineering, Mice, Nude, Neovascularization, Physiologic, Medicine (miscellaneous), Biocompatible Materials, Bone and Bones, Umbilical Cord, Biomaterials, Mice, chemistry.chemical_compound, Wharton's jelly, medicine, Animals, Humans, Wharton Jelly, Bone regeneration, Osteoblasts, Tissue Engineering, Tissue Scaffolds, Mesenchymal stem cell, Endothelial Cells, Cell Differentiation, Mesenchymal Stem Cells, Fetal Blood, Coculture Techniques, In vitro, Culture Media, Cell biology, Vascular endothelial growth factor, medicine.anatomical_structure, chemistry, Blood vessel
Abstract

International audience; A major challenge in bone tissue engineering is the lack of post-implantation vascular growth into biomaterials. In the skeletal system, blood vessel growth appears to be coupled to osteogenesis-suggesting the existence of molecular crosstalk between endothelial cells (ECs) and osteoblastic cells. The present study (performed in two murine ectopic models) was designed to determine whether co-transplantation of human Wharton's jelly mesenchymal stem cell-derived osteoblasts (WJMSC-OBs) and human differentiated ECs enhances bone regeneration and stimulates angiogenesis, relative to the seeding of WJMSC-OBs alone. Human WJMSC-OBs and human ECs were loaded into a silicate-substituted calcium phosphate (SiCaP) scaffold and then ectopically implanted at subcutaneous or intramuscular sites in nude mice. At both subcutaneous and intramuscular implantation sites, we observed ectopic bone formation and osteoids composed of host cells when WJMSC-OBs were seeded into the scaffold. However, the addition of ECs was associated with a lower level of osteogenesis, and we did not observe stimulation of blood vessel ingrowth. in vitro studies demonstrated that WJMSC-OBs lost their ability to secrete vascular endothelial growth factor and stromal cell-derived factor 1-including when ECs were present. In these two murine ectopic models, our cell-matrix environment combination did not seem to be optimal for inducing vascularized bone reconstruction.

Published
2020

37. 900 MHz Electromagnetic Fields Induce Microbiota Dysbiosis and Adaptive Immune System Disorders in Juvenile Rats

Author

Louison Collet, Aymar Bosquillon Jenlis, Hafida Khorsi-Cauet, Marie Naudot, Nariman Djekkoun, Hussein Ghamlouch, Aurélie Corona, Hakim Ouled-Haddou, Stéphane Delanaud, Loïc Garcon, Véronique Bach, Amandine Pelletier, and Jean-Pierre Marolleau

Subjects
animal structures
Abstract

Although cell phones and electronic devices are now integral parts of modern life (especially for young people), the radiofrequency electromagnetic field (RF-EMF) emitted by these devices is a potential health hazard. The effects of RF-EMFs have been assessed in various fields, including epidemiology and neurology. However, there are few published data on the possible effects of RF-EMFs on immune cells; this is surprising, given the importance of the immune system’s role in defending the body against infections and cancer. To assess whether chronic RF-EMF exposure has harmful effects on the immune system in juvenile rats, rats were exposed or not to 900MHz RF-EMF 23h/day during 5 weeks. Hematological, cytometric and bacteriological assays were used to probe differences between exposed and non-exposed tissues. Exposure of rats to 900 MHz RF-EMF was associated with differences in the innate immune system and even more marked in the adaptive immune system. An analysis of the intestinal microbiota revealed dysbiosis, with an over-representation of Enterococcus, Clostridium and Bacteroides spp. Enterococcus was found to have translocated into the spleen in 67% exposed rats. Exposure to a 900 MHz RF-EMF appeared to alter the immune system (and particularly the adaptive immune system) directly or via intestinal dysbiosis.

Published
2022

38. [ISO 9001: 2015 certification of all research activities of a university hospital center]

Author

Lina, Mustapha, Christine, Lebel, Sophie, Boddaert, Sandrine, Castelain, Gilles, Duverlie, Olivier, Ganry, Yves-Édouard, Herpe, Ségolène, Lebreton, Jean-Pierre, Marolleau, Henri, Sevestre, Sandrine, Soriot-Thomas, Riad, Tebbakha, Thierry, Yzet, Aude, Sautier, and Jean-Luc, Schmit

Abstract

In France, the number of hospitals involved in clinical research and committed to a quality approach is increasing. The objective of such approaches is to ensure the safety of patients involved in research projects by improving quality.The University Hospital of Amiens has chosen to certify all its clinical research activities in the same scope according to the ISO 9001: 2015 standard.Action planning has been established and a head of quality management has been appointed to oversee this process.The activities in the five departments of our university hospital jointly certified in December 2019, are: activities related to internal and external sponsors, as well as methodology and monitoring of clinical research projects conducted in the Clinical Research and Innovation Department (CRID); help with clinical research investigations in the Clinical Research Center (CRC); management of the pathway of therapeutic units used in clinical research (excluding the manufacture of drugs) in the Clinical Trials Unit (CTU) of the Hospital Pharmacy; the conservation and provision of biological resources (tissues and fluids) for cancer research in the Tumor bank of Picardy; the collection, reception, preparation, quality control, conservation and provision of biological resources for research purposes. These activities fall within the framework of legal and regulatory activities and the provision of secure storage in the Biological Resources Center already ISO 9001 certified since 2004 and NF S96-900: 2011 certified since 2009.The choice of a common quality approach has brought together more than 70 persons from 5 departments involved in clinical research projects within a single certificate with the aim of continuous improvement.

Published
2022

39. Primary plasma cell leukemias displaying t(11;14) have specific genomic, transcriptional, and clinical features

Author

Titouan Cazaubiel, Xavier Leleu, Aurore Perrot, Salomon Manier, Laure Buisson, Sabrina Maheo, Laura Do Souto Ferreira, Romain Lannes, Luka Pavageau, Cyrille Hulin, Jean-Pierre Marolleau, Laurent Voillat, Karim Belhadj, Marion Divoux, Borhane Slama, Sabine Brechignac, Margaret Macro, Anne-Marie Stoppa, Laurence Sanhes, Frédérique Orsini-Piocelle, Jean Fontan, Marie-Lorraine Chretien, Hélène Demarquette, Mohamad Mohty, Anais Schavgoulidze, Herve Avet-Loiseau, Jill Corre, Service d'Hématologie [CHU Poitiers], Centre hospitalier universitaire de Poitiers (CHU Poitiers), Service d'Hématologie [IUCT Toulouse], Université Fédérale Toulouse Midi-Pyrénées-Institut Universitaire du Cancer de Toulouse - Oncopole (IUCT Oncopole - UMR 1037), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-CHU Toulouse [Toulouse]-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-CHU Toulouse [Toulouse]-Institut National de la Santé et de la Recherche Médicale (INSERM), CHU de Lille, Service des maladies du sang, Centre de Recherches en Cancérologie de Toulouse (CRCT), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Institut Universitaire du Cancer de Toulouse - Oncopole (IUCT Oncopole - UMR 1037), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-CHU Toulouse [Toulouse]-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut de Systématique, Evolution, Biodiversité (ISYEB ), Muséum national d'Histoire naturelle (MNHN)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), Hôpital Haut-Lévêque [CHU Bordeaux], CHU Bordeaux [Bordeaux], CHU Amiens-Picardie, HEMATIM - Hématopoïèse et immunologie - UR UPJV 4666 (HEMATIM), Université de Picardie Jules Verne (UPJV)-CHU Amiens-Picardie-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre Hospitalier Chalon-sur-Saône William Morey, Hôpital Henri Mondor, Université de Lorraine (UL), Avignon Université (AU), Hôpital Avicenne [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), CHU Caen, Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN), Service d’Hématologie [Institut Paoli Calmettes, Marseille], Institut Paoli-Calmettes, Fédération nationale des Centres de lutte contre le Cancer (FNCLCC)-Fédération nationale des Centres de lutte contre le Cancer (FNCLCC), Centre Hospitalier Saint Jean de Perpignan, Centre Hospitalier Annecy-Genevois [Saint-Julien-en-Genevois], Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon), Service d'Hématologie Clinique (CHU de Dijon), Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), Hôpital Claude Huriez [Lille], CHU Lille, CHU Saint-Antoine [AP-HP], 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), Centre Hospitalier Universitaire de Purpan (CHU Purpan), and CHU Toulouse [Toulouse]

Subjects
Chromosome Aberrations, [SDV]Life Sciences [q-bio], Immunology, Humans, Cell Biology, Hematology, Genomics, Multiple Myeloma, Prognosis, Transcriptome, Biochemistry, Leukemia, Plasma Cell
Abstract

Primary plasma cell leukemia (pPCL) is an aggressive form of multiple myeloma (MM) that has not benefited from recent therapeutic advances in the field. Because it is very rare and heterogeneous, it remains poorly understood at the molecular level. To address this issue, we performed DNA and RNA sequencing of sorted plasma cells from a large cohort of 90 newly diagnosed pPCL and compared with MM. We observed that pPCL presents a specific genomic landscape with a high prevalence of t(11;14) (about half) and high-risk genomic features such as del(17p), gain 1q, and del(1p32). In addition, pPCL displays a specific transcriptome when compared with MM. We then wanted to characterize specifically pPCL with t(11;14). We observed that this subentity displayed significantly fewer adverse cytogenetic abnormalities. This translated into better overall survival when compared with pPCL without t(11;14) (39.2 months vs 17.9 months, P = .002). Finally, pPCL with t(11;14) displayed a specific transcriptome, including differential expression of BCL2 family members. This study is the largest series of patients with pPCL reported so far.

Published
2022

40. Obinutuzumab plus lenalidomide in advanced, previously untreated follicular lymphoma in need of systemic therapy: a LYSA study

Author

Emmanuel Bachy, Roch Houot, Pierre Feugier, Krimo Bouabdallah, Reda Bouabdallah, Emmanuelle Nicolas Virelizier, Marie Maerevoet, Christophe Fruchart, Sylvia Snauwaert, Steven Le Gouill, Jean-Pierre Marolleau, Lysiane Molina, Cécile Moluçon-Chabrot, Catherine Thieblemont, Hervé Tilly, Fontanet Bijou, Corinne Haioun, Eric Van den Neste, Bettina Fabiani, Michel Meignan, Guillaume Cartron, Gilles Salles, Olivier Casasnovas, Franck Morschhauser, Centre Hospitalier Lyon Sud [CHU - HCL] (CHLS), Hospices Civils de Lyon (HCL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon, Microenvironment, Cell Differentiation, Immunology and Cancer (MICMAC), 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)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), Microenvironment and B-cells: Immunopathology,Cell Differentiation, and Cancer (MOBIDIC), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Etablissement français du sang [Rennes] (EFS Bretagne)-Institut National de la Santé et de la Recherche Médicale (INSERM), French Innovative Leukemia Organization (Filo), CHU Bordeaux [Bordeaux], Institut Paoli-Calmettes, Fédération nationale des Centres de lutte contre le Cancer (FNCLCC), Centre Léon Bérard [Lyon], Institut Jules Bordet [Bruxelles], Faculté de Médecine [Bruxelles] (ULB), Université libre de Bruxelles (ULB)-Université libre de Bruxelles (ULB), CH Dunkerque, Department of ENT surgery, AZ Sint Jan Brugge Oostende, Service d'Hématologie Biologique [CHU Nantes], Centre hospitalier universitaire de Nantes (CHU Nantes), L’Héma-NexT [UNIV Nantes] (i-Site NexT), Université de Nantes (UN), Microenvironnement des niches tumorales (CNRS GDR 3697 Micronit ), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Centre de Recherche en Cancérologie et Immunologie Intégrée Nantes-Angers (CRCI2NA ), Université d'Angers (UA)-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, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ), CHU Amiens-Picardie, HEMATIM - Hématopoïèse et immunologie - UR UPJV 4666 (HEMATIM), Université de Picardie Jules Verne (UPJV)-CHU Amiens-Picardie-Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Grenoble, Université Joseph Fourier - Grenoble 1 (UJF)-CHU Grenoble, Service d’Hématologie Biologique [CHU Clermont-Ferrand], CHU Gabriel Montpied [Clermont-Ferrand], CHU Clermont-Ferrand-CHU Clermont-Ferrand-CHU Estaing [Clermont-Ferrand], CHU Clermont-Ferrand, Hopital Saint-Louis [AP-HP] (AP-HP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), NF-kappaB, Différenciation et Cancer (OncokappaB (URP_7324)), Université Paris Cité (UPCité), Génomique et Médecine Personnalisée du Cancer et des Maladies Neuropsychiatriques (GPMCND), Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre de Lutte Contre le Cancer Henri Becquerel Normandie Rouen (CLCC Henri Becquerel), Institut Bergonié [Bordeaux], UNICANCER, Hôpital Henri Mondor, Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Cliniques Universitaires Saint-Luc [Bruxelles], Service de neurophysiologie [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), LYSA Imaging (Créteil) (LYSA-IM), CHU Henri Mondor, CHU Montpellier, Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Weill Medical College of Cornell University [New York], Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), CHU Lille, The study was funded by the LYSARC, and financially supported in part by investigator-initiated study grants from Celgene/BMS and Roche., Université de Rennes (UR)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), Université de Rennes (UR)-Etablissement français du sang [Rennes] (EFS Bretagne)-Institut National de la Santé et de la Recherche Médicale (INSERM), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), CHU Henri Mondor [Créteil], Microenvironnement des niches tumorales [UNIV Tours] (CNRS GDR 3697 MicroNiT), Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS), Université Paris Cité (UPC), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), UCL - SSS/IREC/MIRO - Pôle d'imagerie moléculaire, radiothérapie et oncologie, UCL - (SLuc) Centre du cancer, UCL - (SLuc) Service de gastro-entérologie, and UCL - (SLuc) Unité d'oncologie médicale

Subjects
Adult, Neutropenia, Adolescent, [SDV]Life Sciences [q-bio], Immunology, [SDV.CAN]Life Sciences [q-bio]/Cancer, Cell Biology, Hematology, Antibodies, Monoclonal, Humanized, Biochemistry, Treatment Outcome, Antineoplastic Combined Chemotherapy Protocols, Humans, Lenalidomide, Lymphoma, Follicular
Abstract

Obinutuzumab and lenalidomide (referred to as the GALEN combination) is an active immunomodulatory combination with a manageable safety profile in multiple types of lymphoma. We report efficacy and safety results for the phase 2 GALEN study in previously untreated patients with advanced follicular lymphoma (FL). Eligible patients aged ≥18 years had an Eastern Cooperative Oncology Group performance status ≤2 and high-tumor burden, grade 1 to 3a FL. Induction treatment was obinutuzumab (1000 mg IV, days 8, 15, and 22, cycle 1; day 1, cycles 2-6) plus lenalidomide (20 mg/d, days 1-21, cycle 1; days 2-22, cycles 2-6) for six 28-day cycles. Maintenance included obinutuzumab (1000 mg every 2 cycles) plus lenalidomide (10 mg, days 2-22) for ≤12 cycles (year 1) followed by obinutuzumab (1000 mg every 56 days) for 6 cycles (year 2). The primary end point was complete response rate (CRR) after induction per the 1999 International Working Group criteria. From October 2015 to February 2017, a total of 100 patients were enrolled. CRR after induction was 47%, and the overall response rate (ORR) was 92%. Post hoc analyses per the 2014 Lugano classification, including patients with missing bone marrow assessments, identified an additional 13 patients fulfilling CRR criteria, resulting in a complete metabolic response of 80% and an ORR of 94%. At a median follow-up of 3.7 years, 3-year progression-free survival and overall survival were 82% and 94%, respectively. The most common adverse event was neutropenia (48% any grade; 47% grade ≥3). Only 2% of patients presented with febrile neutropenia; others were mainly grade ≤2. No other specific grade ≥3 toxicity occurred at a frequency >3%. Overall, these results showed promising clinical efficacy for the chemotherapy-free GALEN backbone in previously untreated patients with high tumor burden FL. Except for neutropenia, the safety profile of the combination is remarkable. The study was registered at clinicaltrials.gov as #NCT01582776.

Published
2022

41. A Randomised Phase II Study of Azacitidine (AZA) Alone or with Lenalidomide (LEN), Valproic Acid (VPA) or Idarubicin (IDA) in Higher-Risk MDS or Low Blast AML: GFM's 'Pick a Winner' Trial, with the Impact of Somatic Mutations

Author

Lionel, Adès, Nicolas, Duployez, Agnes, Guerci-Bresler, Kamel, Laribi, Pierre, Peterlin, Norbert, Vey, Sylvain, Thepot, Stefan, Wickenhauser, Hacene, Zerazhi, Aspassia, Stamatoullas, Eric, Wattel, Christian, Recher, Andrea, Toma, Sophie, Dimicoli-Salazar, Thorsten, Braun, Odile, Beyne-Rauzy, Jean-Pierre, Marolleau, Stéphane, Cheze, Sophie, Park, Thomas, Cluzeau, Stanislas, Nimubona, Dominique, Bordessoule, Riad, Benramdane, Bruno, Quesnel, Shanti, Amé, Stéphane, de Botton, Fathia, Chermat, Claude, Preudhomme, Sylvie, Chevret, Pierre, Fenaux, Hopital Saint-Louis [AP-HP] (AP-HP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Université Paris Cité (UPCité), Cancer Heterogeneity, Plasticity and Resistance to Therapies - UMR 9020 - U 1277 (CANTHER), Institut Pasteur de Lille, Réseau International des Instituts Pasteur (RIIP)-Réseau International des Instituts Pasteur (RIIP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lille-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille)-Centre National de la Recherche Scientifique (CNRS), Centre Hospitalier Universitaire de Nancy (CHU Nancy), Centre Hospitalier Le Mans (CH Le Mans), Centre hospitalier universitaire de Nantes (CHU Nantes), Nantes Université (Nantes Univ), Institut Paoli-Calmettes, Fédération nationale des Centres de lutte contre le Cancer (FNCLCC), Aix Marseille Université (AMU), 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), Stress Adaptation and Tumor Escape - SATE (CRCI2NA / Eq 7), Centre de Recherche en Cancérologie et Immunologie Intégrée Nantes-Angers (CRCI2NA ), Université d'Angers (UA)-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, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Université d'Angers (UA)-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 (Nantes Univ)-Nantes Université (Nantes Univ), Centre Hospitalier Universitaire de Nîmes (CHU Nîmes), Centre Hospitalier Henri Duffaut (Avignon), Laboratoire de biologie et modélisation de la cellule (LBMC UMR 5239), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Service Hématologie - IUCT-Oncopole [CHU Toulouse], Pôle Biologie [CHU Toulouse], Centre Hospitalier Universitaire de Toulouse (CHU Toulouse)-Centre Hospitalier Universitaire de Toulouse (CHU Toulouse)-Pôle IUCT [CHU Toulouse], Centre Hospitalier Universitaire de Toulouse (CHU Toulouse), Hôpital Henri Mondor, Biothérapies des maladies génétiques et cancers, Université Bordeaux Segalen - Bordeaux 2-Institut National de la Santé et de la Recherche Médicale (INSERM), Charité - UniversitätsMedizin = Charité - University Hospital [Berlin], CHU Amiens-Picardie, HEMATIM - Hématopoïèse et immunologie - UR UPJV 4666 (HEMATIM), Université de Picardie Jules Verne (UPJV)-CHU Amiens-Picardie-Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Caen, Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN), CHU Grenoble, XLIM (XLIM), Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS), CHU Pontchaillou [Rennes], Contrôle de la Réponse Immune B et des Lymphoproliférations (CRIBL), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut Génomique, Environnement, Immunité, Santé, Thérapeutique (GEIST), Université de Limoges (UNILIM)-Université de Limoges (UNILIM), Centre Hospitalier René Dubos [Pontoise], Département d'Oncologie et Hématologie [Strasbourg], Les Hôpitaux Universitaires de Strasbourg (HUS), Institut Gustave Roussy (IGR), Département d'hématologie [Gustave Roussy], Equipe 2 : ECSTRA - Epidémiologie Clinique, STatistique, pour la Recherche en Santé (CRESS - U1153), Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité (CRESS (U1153 / UMR_A_1125 / UMR_S_1153)), 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)-Université Sorbonne Paris Cité (USPC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Conservatoire National des Arts et Métiers [CNAM] (CNAM), and 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)-Université Sorbonne Paris Cité (USPC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)

Subjects
Leukemia, Myeloid, Acute, Treatment Outcome, Valproic Acid, Antineoplastic Combined Chemotherapy Protocols, Mutation, Azacitidine, Humans, Idarubicin, Lenalidomide, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract

International audience; In order to improve the outcome observed with azacitidine (AZA) in higher-risk Myelodysplastic syndrome (MDS), its combination with other drugs in MDS must be evaluated. So far, no combination has not been shown to be more effective than AZA alone. AZA-PLUS was a phase II trial that, in a "pick a winner" approach, randomly assigned patients with higher-risk MDS, CMML and low blast count AML to: AZA; AZA plus lenalidomide; AZA plus Valproic Acid or AZA plus Idarubicin. 322 patients were included. After six\,cycles, 69 (21.4%) CR\,+\,PR were observed with no benefit from any combination. Median EFS and OS were 17.2 and 19.7\,months in the whole cohort, respectively, with no difference across randomised arms. Infection and rates of hospitalisation during the first six\,cycles were higher in the AZA-LEN And AZA-IDA arm, related to increased myelosuppression. Factors associated with better response were IPSS, favourable or intermediate karyotype, haemoglobin, lower circulating blast count, fibrinogen level and lower LDH, while poorer survival was seen in therapy-related MDS and, in the case of TP53, PTPN11 or CSF3R mutation. The combinations used did not improve the outcome obtained with AZA alone. However, our "pick a winner" randomised strategy may remain useful with potentially more active drugs to be tested in combination with AZA.

Published
2022

42. Ruxolitinib-induced reactivation of cytomegalovirus and Epstein-Barr virus in graft-versus-host disease

Author

Delphine Lebon, Adèle Dujardin, Alexis Caulier, Magalie Joris, Amandine Charbonnier, Bérengère Gruson, Marine Quint, Sandrine Castelain, Catherine François, Marie-Noëlle Lacassagne, Nicolas Guillaume, Jean-Pierre Marolleau, and Pierre Morel

Subjects
Cancer Research, Oncology, Hematology
Abstract

Steroid-refractory graft-versus-host disease (SR-GVHD) is a challenging complication of allogeneic hematopoietic stem cell transplantation, and leads to high morbidity and mortality rates. The orally administered, selective Janus-associated kinase 1/2 inhibitor ruxolitinib gives overall response rates (ORR) of more than 70 % in acute and chronic SR-GVHD. However, several studies have highlighted an elevated risk of cytomegalovirus (CMV) reactivation in patients with ruxolitinib-treated SR-GVHD.We therefore analyzed risk of CMV and Epstein-Barr virus (EBV) primary infection or reactivation in 57 patients with ruxolitinib-treated GVHD, while taking account of the competing risk (CR) of death prior to the first reactivation.Initiation of ruxolitinib treatment was a significant adverse prognostic factor for the CR of first CMV reactivation (hazard ratio (HR)= 1.747, 95 % confidence interval (CI): 1.33-2.92, p 0.0001) and first EBV reactivation (HR=2.657, 95 % CI: 1.82-3.87, p 0.0001) during GVHD. In our cohort of ruxolitinib-treated patients, the ORR (48 % and 58 % for acute and chronic GVHD, respectively) and the toxicity profile (haematological adverse events in 29.8 % of the patients) were similar to the literature values.Given ruxolitinib's efficacy in SR-GVHD, use of this drug should not be limited by the fear of viral reactivation; however, our present results emphasize the importance of monitoring the viral load.

Published
2023

43. Utility of assessing CD3

Author

Mehdi, Bendjelloul, Cédric, Usureau, Pascaline, Etancelin, Zuzana, Saidak, Delphine, Lebon, Loïc, Garçon, Jean-Pierre, Marolleau, Judith, Desoutter, and Nicolas, Guillaume

Subjects
Leukemia, Myeloid, Acute, Recurrence, Hematopoietic Stem Cell Transplantation, Humans, Transplantation, Homologous, Chimerism, Alleles
Abstract

After allogeneic hematopoietic stem-cell transplantation (alloHSCT), the chimerism assay is used to monitor cell engraftment and quantify the respective proportions of donor/recipient cells in blood or bone-marrow samples. Here, we aimed to better assess the utility of determining CD3

Published
2021

44. Heterogeneity in long term outcomes for R-ISS stage II in newly diagnosed multiple myeloma patients

Author

Anais, Schavgoulidze, Valerie, Lauwers-Cances, Aurore, Perrot, Titouan, Cazaubiel, Marie-Lorraine, Chretien, Philippe, Moreau, Thierry, Facon, Xavier, Leleu, Lionel, Karlin, Anne-Marie, Stoppa, Olivier, Decaux, Karim, Belhadj, Bertrand, Arnulf, Mohamad, Mohty, Clara M, Ariette, Cecile, Fohrer-Sonntag, Pascal, Lenain, Jean-Pierre, Marolleau, Mourad, Tiab, Carla, Araujo, Frederique, Orsini-Piocelle, Arnaud, Jaccard, Murielle, Roussel, Lotfi, Benboubker, Jean-Richard, Eveillard, Mamoun, Dib, Marion, Divoux, Michel, Attal, Herve, Avet-Loiseau, and Jill, Corre

Abstract

In the era of personalized treatment in multiple myeloma, high-risk patients must be accurately defined. The International Myeloma Working Group recommends using the Revised International Staging System (R-ISS) to identify high-risk patients. The main purpose of our work was to explore the heterogeneity of outcome among R-ISS stage II patients assessing the impact of ISS, chromosomal abnormalities (CA) and LDH level in this subgroup. Data were issued from 1,343 newly diagnosed myeloma patients up to 65 years, enrolled in 3 clinical trials implemented by the Intergroupe Francophone du Myelome. All patients were eligible to an intensive treatment. Patients R-ISS stage II but ISS stage I had 1.6 times more risk of death than patients R-ISS stage I (adjusted HR 1.6; 95% CI, 1.1 to 2.2; P = .01) and patients R-ISS stage II but ISS stage III had a better overall survival than patients R-ISS stage III (adjusted HR 0.7; 95% CI, 0.4 to 0.9, P = .02). However, among patients classified in R-ISS II, ISS stage and CA (del(17p) and t(4;14)) were still relevant prognostic factors for death. Dividing R-ISS stage II into 3 subgroups: ISS I with standard risk CA, ISS II or III with standard risk CA and, high risk CA patients, median overall survivals were respectively not reached, 112 and 71 months (P0.001). In conclusion, stratification of patients in the R-ISS stage II group can be improved by taking into account CA and ISS. However, this does not improve predictive performance of survival models.

Published
2021

45. Donor variability alters differentiation and mechanical cohesion of tissue-engineered constructs with human endothelial/MSC co-culture

Author

Marie Naudot, Sébastien Dupont, Cécile Legallais, Bernard Devauchelle, Timothée Baudequin, Fahmi Bedoui, Sylvie Testelin, Jean-Pierre Marolleau, Biomécanique et Bioingénierie (BMBI), Université de Technologie de Compiègne (UTC)-Centre National de la Recherche Scientifique (CNRS), Procédés Microbiologiques et Biotechnologiques (PMB), Procédés Alimentaires et Microbiologiques (PAM), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Procédés Alimentaires et Microbiologiques [Dijon] (PAM), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université Bourgogne Franche-Comté [COMUE] (UBFC)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Service de Stomatologie et Chirurgie Maxillo-facial [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), Université de Technologie de Compiègne (UTC), 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
Cell type, [SDV]Life Sciences [q-bio], Cell, Biomedical Engineering, Medicine (miscellaneous), Bioengineering, 02 engineering and technology, Matrix (biology), Biomaterials, 03 medical and health sciences, Tissue engineering, Osteogenesis, medicine, Humans, Viability assay, Primary cell, Bone, Cells, Cultured, 030304 developmental biology, 0303 health sciences, mesenchymal stem cells, Tissue Engineering, Chemistry, Cell growth, Mesenchymal stem cell, donor variability, Cell Differentiation, General Medicine, 021001 nanoscience & nanotechnology, Coculture Techniques, endothelial cells, Cell biology, medicine.anatomical_structure, 0210 nano-technology, coculture
Abstract

International audience; To move towards clinical applications, tissue engineering (TE) should be validated with human primary cells and offer easy connection to the native vascularisation. Based on a sheet-like bone substitute developed previously, we investigated a mesenchymal stem cells/endothelial cells (MSCs/ECs) coculture to enhance pre-vascularisation. Using MSCs from six independent donors whose differentiation potential was assessed towards two lineages, we focused on donor variability and cell crosstalk regarding bone differentiation. Coculture was performed on calcium phosphate granules in a specific chamber during 1 month. MSCs were seeded first then ECs were added after 2 weeks, with respective monocultures as control groups. Cell viability and organisation (fluorescence, electronic microscopy), differentiation (ALP staining/activity, RT-qPCR) and mechanical cohesion were analysed. Adaptation of the protocol to coculture was validated (high cell viability and proliferation). Activity and differentiation showed strong trends towards synergistic effects between cell types. MSCs reached early mineralisation stage of maturation. The delayed addition of ECs allowed for their attachment on developed MSCs’ matrix. The main impact of donor variability could be here the lack of cell proliferation potential with some donors, leading to low differentiation and mechanical cohesion and therefore absence of sheet-like shape successfully obtained with others. We suggest therefore adapting protocols to cell proliferation potentials from one batch of cells to the other in a patient-specific approach.

Published
2021

46. Intensive chemotherapy followed by autologous stem cell transplantation in primary central nervous system lymphomas (PCNSLs). Therapeutic outcomes in real life-experience of the French Network

Author

Laurence, Schenone, Caroline, Houillier, Marie Laure, Tanguy, Sylvain, Choquet, Kossi, Agbetiafa, Hervé, Ghesquières, Gandhi, Damaj, Anna, Schmitt, Krimo, Bouabdallah, Guido, Ahle, Remy, Gressin, Jérôme, Cornillon, Roch, Houot, Jean-Pierre, Marolleau, Luc-Matthieu, Fornecker, Olivier, Chinot, Frédéric, Peyrade, Reda, Bouabdallah, Cécile, Moluçon-Chabrot, Emmanuel, Gyan, Adrien, Chauchet, Olivier, Casasnovas, Lucie, Oberic, Vincent, Delwail, Julie, Abraham, Virginie, Roland, Agathe, Waultier-Rascalou, Lise, Willems, Franck, Morschhauser, Michel, Fabbro, Renata, Ursu, Catherine, Thieblemont, Fabrice, Jardin, Adrian, Tempescul, Denis, Malaise, Valérie, Touitou, Lucia, Nichelli, Magali, Le Garff-Tavernier, Aurélie, Plessier, Philippe, Bourget, Caroline, Bonmati, Sophie, Wantz-Mézières, Quentin, Giordan, Véronique, Dorvaux, Cyril, Charron, Waliyde, Jabeur, Khê, Hoang-Xuan, Luc, Taillandier, Carole, Soussain, and Thomas, Gastinne

Subjects
Central Nervous System, Lymphoma, Hematopoietic Stem Cell Transplantation, Carmustine, Transplantation, Autologous, Central Nervous System Neoplasms, Treatment Outcome, Antineoplastic Combined Chemotherapy Protocols, Humans, Prospective Studies, Neoplasm Recurrence, Local, Busulfan, Cyclophosphamide, Thiotepa, Etoposide
Abstract

We analysed the therapeutic outcomes of all consecutive patients with primary central nervous system lymphoma (PCNSL) registered in the prospective French database for PCNSL and treated with intensive chemotherapy (IC) followed by autologous stem cell transplantation (IC-ASCT) between 2011 and November 2019 (271 patients recruited, 266 analysed). In addition, treatment-related complications of thiotepa-based IC-ASCT were analysed from the source files of 85 patients from 3 centers. Patients had received IC-ASCT either in first-line treatment (n = 147) or at relapse (n = 119). The median age at IC-ASCT was 57 years (range: 22-74). IC consisted of thiotepa-BCNU (n = 64), thiotepa-busulfan (n = 24), BCNU-etoposide-cytarabine-melphalan (BEAM, n = 36) and thiotepa-busulfan-cyclophosphamide (n = 142). In multivariate analysis, BEAM and ASCT beyond the first relapse were adverse prognostic factors for relapse risk. The risk of treatment-related mortality was higher for ASCT performed beyond the first relapse and seemed higher for thiotepa-busulfan-cyclophosphamide. Thiotepa-BCNU tends to result in a higher relapse rate than thiotepa-busulfan-cyclophosphamide and thiotepa-busulfan. This study confirms the role of IC-ASCT in first-line treatment and at first-relapse PCNSL (5-year overall survival rates of 80 and 50%, respectively). The benefit/risk ratio of thiotepa-busulfan/thiotepa-busulfan-cyclophosphamide-ASCT could be improved by considering ASCT earlier in the course of the disease and dose adjustment of the IC.

Published
2021

47. Accurate classification of plasma cell dyscrasias is achieved by combining artificial intelligence and flow cytometry

Author

Loïc Garçon, Delphine Lebon, Véronique Harrivel, Murielle Gautier, François Vergez, Deborah Assouan, Pierre Morel, Valentin Clichet, Thomas Matthes, Marie Beaumont, Thomas Boyer, Caroline Delette, Jean-Pierre Marolleau, Eric Guiheneuf, Alexis Caulier, and Lavinia Merlusca

Subjects
Male, Paraproteinemias, Plasma cell, Monoclonal Gammopathy of Undetermined Significance, Flow cytometry, Unknown Significance, immune system diseases, Artificial Intelligence, hemic and lymphatic diseases, medicine, Humans, Diagnosis, Computer-Assisted, Multiple myeloma, Aged, Retrospective Studies, medicine.diagnostic_test, Cluster of differentiation, business.industry, Hematology, medicine.disease, Flow Cytometry, Monoclonal gammopathy, medicine.anatomical_structure, Female, Artificial intelligence, medicine.symptom, business, Multiple Myeloma, Monoclonal gammopathy of undetermined significance
Abstract

Monoclonal gammopathy of unknown significance (MGUS), smouldering multiple myeloma (SMM), and multiple myeloma (MM) are very common neoplasms. However, it is often difficult to distinguish between these entities. In the present study, we aimed to classify the most powerful markers that could improve diagnosis by multiparametric flow cytometry (MFC). The present study included 348 patients based on two independent cohorts. We first assessed how representative the data were in the discovery cohort (123 MM, 97 MGUS) and then analysed their respective plasma cell (PC) phenotype in order to obtain a set of correlations with a hypersphere visualisation. Cluster of differentiation (CD)27 and CD38 were differentially expressed in MGUS and MM (P < 0·001). We found by a gradient boosting machine method that the percentage of abnormal PCs and the ratio PC/CD117 positive precursors were the most influential parameters at diagnosis to distinguish MGUS and MM. Finally, we designed a decisional algorithm allowing a predictive classification ≥95% when PC dyscrasias were suspected, without any misclassification between MGUS and SMM. We validated this algorithm in an independent cohort of PC dyscrasias (n = 87 MM, n = 41 MGUS). This artificial intelligence model is freely available online as a diagnostic tool application website for all MFC centers worldwide (https://aihematology.shinyapps.io/PCdyscrasiasToolDg/).

Published
2021

48. Maintenance with daratumumab or observation following treatment with bortezomib, thalidomide, and dexamethasone with or without daratumumab and autologous stem-cell transplant in patients with newly diagnosed multiple myeloma (CASSIOPEIA): an open-label, randomised, phase 3 trial

Author

Matthijs Westerman, Bertrand Arnulf, Frédérique Kuhnowski, Tahamtan Ahmadi, Annemiek Broijl, Lotfi Benboubker, Marie-Christiane Vekemans, Sonja Zweegman, Xavier Leleu, Maria Krevvata, Cyrille Touzeau, Veronique Vanquickelberghe, Hélène Caillon, Denis Caillot, Ke Zhang, Soraya Wuilleme, Pieter Sonneveld, Michel Delforge, Mark-David Levin, Jean-Richard Eveillard, Jill Corre, Aurore Perrot, Philippe Moreau, Mohamad Mohty, Nathalie Meuleman, Anne-Marie Stoppa, Jessica Vermeulen, Kon-Siong Jie, Saskia K. Klein, Tobias Kampfenkel, Fritz Offner, Thierry Facon, Hervé Avet-Loiseau, Chantal Doyen, Frédérique Orsini-Piocelle, Cécile Sonntag, Murielle Roussel, Carla de Boer, Jean-Pierre Marolleau, Reda Garidi, Thomas Dejoie, Mourad Tiab, Cyrille Hulin, Lionel Karlin, Margaret Macro, Jean Fontan, Sanjay Vara, Jérôme J. Lambert, Niels W.C.J. van de Donk, Marie C. Béné, Martine Escoffre-Barbe, Karim Belhadj, Hematology, CCA - Cancer Treatment and quality of life, UCL - SSS/IREC/MONT - Pôle Mont Godinne, UCL - SSS/IREC/SLUC - Pôle St.-Luc, UCL - (MGD) Service d'hématologie, and UCL - (SLuc) Service d'hématologie

Subjects
Adult, Male, medicine.medical_specialty, Time Factors, Adolescent, Population, Transplantation, Autologous, Dexamethasone, Drug Administration Schedule, Maintenance Chemotherapy, Bortezomib, Young Adult, Internal medicine, Antineoplastic Combined Chemotherapy Protocols, Clinical endpoint, Medicine, Data monitoring committee, Humans, education, Multiple myeloma, Aged, education.field_of_study, business.industry, Hazard ratio, Daratumumab, Antibodies, Monoclonal, Middle Aged, medicine.disease, Interim analysis, Progression-Free Survival, Thalidomide, Europe, Oncology, Female, business, Multiple Myeloma, medicine.drug, Stem Cell Transplantation
Abstract

Background: CASSIOPEIA part 1 showed superior depth of response and significantly improved progression-free survival with daratumumab, bortezomib, thalidomide, and dexamethasone (D-VTd) versus bortezomib, thalidomide, and dexamethasone (VTd) as induction and consolidation in patients with autologous stem-cell transplant (ASCT)-eligible newly diagnosed multiple myeloma. In part 2, we compared daratumumab maintenance versus observation only. Methods: CASSIOPEIA is a two-part, open-label, randomised, phase 3 trial of patients aged 18–65 years with newly diagnosed multiple myeloma and Eastern Cooperative Oncology Group performance status 0–2, done in 111 European academic and community practice centres. In part 1, patients were randomly assigned (1:1) to induction and consolidation with D-VTd or VTd. Patients still on study who had a partial response or better were randomly assigned (1:1) by an interactive web-response system to daratumumab 16 mg/kg intravenously every 8 weeks (a reduced frequency compared with standard daratumumab long-term dosing) or observation only for up to 2 years. Stratification factors were induction treatment and depth of response in part 1. The part 2 primary endpoint was progression-free survival from second randomisation. This preplanned interim analysis of progression-free survival was done after 281 events and shall be considered the primary analysis of progression-free survival. Sponsor personnel and designees who were involved in the analysis were masked to treatment group until the independent data monitoring committee recommended that the preplanned interim analysis be considered the main analysis of progression-free survival in part 2. Otherwise, treatment assignments were unmasked. The interaction between induction and consolidation and maintenance was tested at a two-sided significance level of 0·05 by a stratified Cox regression model that included the interaction term between maintenance treatment and induction and consolidation treatment. Efficacy analyses were done in the maintenance-specific intention-to-treat population, which comprised all patients who underwent second randomisation. Safety was analysed in all patients in the daratumumab group who received at least one dose and all patients randomly assigned to observation only. This trial is registered with ClinicalTrials.gov, NCT02541383. Long-term follow-up is ongoing and the trial is closed to new participants. Findings: Between May 30, 2016, and June 18, 2018, 886 patients (458 [84%] of 543 in the D-VTd group and 428 [79%] of 542 in the VTd group) were randomly assigned to daratumumab maintenance (n=442) or observation only (n=444). At a median follow-up of 35·4 months (IQR 30·2–39·9) from second randomisation, median progression-free survival was not reached (95% CI not evaluable [NE]–NE) with daratumumab versus 46·7 months (40·0–NE) with observation only (hazard ratio 0·53, 95% CI 0·42–0·68, p

Published
2021

49. Characteristics and clinical outcomes of SARS-CoV-2 infection in adult patients with acute leukemia in France

Author

Pierre-Yves, Dumas, Sarah, Bertoli, Caroline, Bonmati, Martin, Carre, Juliette, Lambert, Mario, Ojeda-Uribe, Sylvain, Chantepie, Franciane, Paul, Eric, Jourdan, Stéphanie, Haiat, Emmanuelle, Tavernier, Pierre, Peterlin, Jean-Pierre, Marolleau, Kamel, Laribi, Corentin, Orvain, Quentin, Cabrera, Pascal, Turlure, Stéphane, Girault, Marie, Balsat, Marc, Bernard, Marie-Christine, Bene, Arnaud, Pigneux, Hervé, Dombret, and Christian, Récher

Subjects
Adult, Leukemia, Myeloid, Acute, Cancer Research, Oncology, SARS-CoV-2, Acute Disease, COVID-19, Humans, France, Hematology
Published
2022

50. Ibrutinib related cerebral aspergillosis successfully treated with isavuconazole: a case report

Author

Taieb Chouaki, Julien Maizel, Caroline Delette, Cédric Joseph, Jean-Pierre Marolleau, Rémy Nyga, Youssef Bennis, Camille Mabille, and Mathieu Boone

Subjects
Cancer Research, medicine.medical_specialty, business.industry, Hematology, Gastroenterology, 03 medical and health sciences, chemistry.chemical_compound, 0302 clinical medicine, Oncology, chemistry, Cerebral aspergillosis, 030220 oncology & carcinogenesis, Internal medicine, Ibrutinib, Medicine, In patient, business, 030215 immunology
Abstract

Cerebral aspergillosis is a rare infection in immunocompromised patients but often fatal. However, increasing number of cases of cerebral aspergillosis was observed in patients treated with ibrutin...

Published
2020

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