102 results on '"P Mossuz"'
Search Results
2. Metabolic Deregulations in Acute Myeloid Leukemia
- Author
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P, Mossuz, primary, S, Chevalier, primary, and J, Mondet, primary
- Published
- 2021
- Full Text
- View/download PDF
3. TLR4 and RAGE conversely mediate pro-inflammatory S100A8/9-mediated inhibition of proliferation-linked signaling in myeloproliferative neoplasms
- Author
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Kovačić, Marijana, Mitrović-Ajtić, Olivera, Beleslin-Čokić, Bojana, Djikić, Dragoslava, Subotički, Tijana, Diklić, Miloš, Leković, Danijela, Gotić, Mirjana, Mossuz, Pascal, and Čokić, Vladan P.
- Published
- 2018
- Full Text
- View/download PDF
4. The differential activation of metabolic pathways in leukemic cells depending on their genotype and micro-environmental stress
- Author
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Lo Presti, Caroline, Fauvelle, Florence, Mondet, Julie, and Mossuz, Pascal
- Published
- 2020
- Full Text
- View/download PDF
5. Differential association of calreticulin type 1 and type 2 mutations with myelofibrosis and essential thrombocytemia: relevance for disease evolution
- Author
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Cabagnols, X, Defour, J P, Ugo, V, Ianotto, J C, Mossuz, P, Mondet, J, Girodon, F, Alexandre, J H, Mansier, O, Viallard, J F, Lippert, E, Murati, A, Mozziconacci, M J, Saussoy, P, Vekemans, M C, Knoops, L, Pasquier, F, Ribrag, V, Solary, E, Plo, I, Constantinescu, S N, Casadevall, N, Vainchenker, W, Marzac, C, and Bluteau, O
- Published
- 2015
- Full Text
- View/download PDF
6. Expression of S100A8 in leukemic cells predicts poor survival in de novo AML patients
- Author
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Nicolas, E, Ramus, C, Berthier, S, Arlotto, M, Bouamrani, A, Lefebvre, C, Morel, F, Garin, J, Ifrah, N, Berger, F, Cahn, J Y, and Mossuz, P
- Published
- 2011
- Full Text
- View/download PDF
7. New mutations of MPL in primitive myelofibrosis: only the MPL W515 mutations promote a G1/S-phase transition
- Author
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Chaligné, R, Tonetti, C, Besancenot, R, Roy, L, Marty, C, Mossuz, P, Kiladjian, J-J, Socié, G, Bordessoule, D, Le Bousse-Kerdilès, M-C, Vainchenker, W, and Giraudier, S
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- 2008
- Full Text
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8. Genomic analysis of primary and secondary myelofibrosis redefines the prognostic impact of ASXL1 mutations: a FIM study
- Author
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Luque Paz, Damien, Riou, Jérémie, Verger, Emmanuelle, Cassinat, Bruno, Chauveau, Aurélie, Ianotto, Jean-Christophe, Dupriez, Brigitte, Boyer, Françoise, Renard, Maxime, Mansier, Olivier, Murati, Anne, Rey, Jérôme, Etienne, Gabriel, Mansat-De Mas, Véronique, Tavitian, Suzanne, Nibourel, Olivier, Girault, Stéphane, Le Bris, Yannick, Girodon, François, Ranta, Dana, Chomel, Jean-Claude, Cony-Makhoul, Pascale, Sujobert, Pierre, Robles, Margot, Ben Abdelali, Raouf, Kosmider, Olivier, Cottin, Laurane, Roy, Lydia, Sloma, Ivan, Vacheret, Fabienne, Wemeau, Mathieu, Mossuz, Pascal, Slama, Borhane, Cussac, Vincent, Denis, Guillaume, Walter-Petrich, Anouk, Burroni, Barbara, Jézéquel, Nathalie, Giraudier, Stéphane, Lippert, Eric, Socié, Gérard, Kiladjian, Jean-Jacques, and Ugo, Valérie
- Abstract
We aimed to study the prognostic impact of the mutational landscape in primary and secondary myelofibrosis. The study included 479 patients with myelofibrosis recruited from 24 French Intergroup of Myeloproliferative Neoplasms (FIM) centers. The molecular landscape was studied by high-throughput sequencing of 77 genes. A Bayesian network allowed the identification of genomic groups whose prognostic impact was studied in a multistate model considering transitions from the 3 conditions: myelofibrosis, acute leukemia, and death. Results were validated using an independent, previously published cohort (n = 276). Four genomic groups were identified: patients with TP53 mutation; patients with ≥1 mutation in EZH2, CBL, U2AF1, SRSF2, IDH1, IDH2, NRAS, or KRAS (high-risk group); patients with ASXL1-only mutation (ie, no associated mutation in TP53 or high-risk genes); and other patients. A multistate model found that both TP53 and high-risk groups were associated with leukemic transformation (hazard ratios [HRs] [95% confidence interval], 8.68 [3.32-22.73] and 3.24 [1.58-6.64], respectively) and death from myelofibrosis (HRs, 3.03 [1.66-5.56] and 1.77 [1.18-2.67], respectively). ASXL1-only mutations had no prognostic value that was confirmed in the validation cohort. However, ASXL1 mutations conferred a worse prognosis when associated with a mutation in TP53 or high-risk genes. This study provides a new definition of adverse mutations in myelofibrosis with the addition of TP53, CBL, NRAS, KRAS, and U2AF1 to previously described genes. Furthermore, our results argue that ASXL1 mutations alone cannot be considered detrimental.
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- 2021
- Full Text
- View/download PDF
9. Genomic analysis of primary and secondary myelofibrosis redefines the prognostic impact of ASXL1mutations: a FIM study
- Author
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Luque Paz, Damien, Riou, Jérémie, Verger, Emmanuelle, Cassinat, Bruno, Chauveau, Aurélie, Ianotto, Jean-Christophe, Dupriez, Brigitte, Boyer, Françoise, Renard, Maxime, Mansier, Olivier, Murati, Anne, Rey, Jérôme, Etienne, Gabriel, Mansat-De Mas, Véronique, Tavitian, Suzanne, Nibourel, Olivier, Girault, Stéphane, Le Bris, Yannick, Girodon, François, Ranta, Dana, Chomel, Jean-Claude, Cony-Makhoul, Pascale, Sujobert, Pierre, Robles, Margot, Ben Abdelali, Raouf, Kosmider, Olivier, Cottin, Laurane, Roy, Lydia, Sloma, Ivan, Vacheret, Fabienne, Wemeau, Mathieu, Mossuz, Pascal, Slama, Borhane, Cussac, Vincent, Denis, Guillaume, Walter-Petrich, Anouk, Burroni, Barbara, Jézéquel, Nathalie, Giraudier, Stéphane, Lippert, Eric, Socié, Gérard, Kiladjian, Jean-Jacques, and Ugo, Valérie
- Abstract
We aimed to study the prognostic impact of the mutational landscape in primary and secondary myelofibrosis. The study included 479 patients with myelofibrosis recruited from 24 French Intergroup of Myeloproliferative Neoplasms (FIM) centers. The molecular landscape was studied by high-throughput sequencing of 77 genes. A Bayesian network allowed the identification of genomic groups whose prognostic impact was studied in a multistate model considering transitions from the 3 conditions: myelofibrosis, acute leukemia, and death. Results were validated using an independent, previously published cohort (n = 276). Four genomic groups were identified: patients with TP53mutation; patients with ≥1 mutation in EZH2, CBL, U2AF1, SRSF2, IDH1, IDH2, NRAS, or KRAS(high-risk group); patients with ASXL1-only mutation (ie, no associated mutation in TP53or high-risk genes); and other patients. A multistate model found that both TP53and high-risk groups were associated with leukemic transformation (hazard ratios [HRs] [95% confidence interval], 8.68 [3.32-22.73] and 3.24 [1.58-6.64], respectively) and death from myelofibrosis (HRs, 3.03 [1.66-5.56] and 1.77 [1.18-2.67], respectively). ASXL1-only mutations had no prognostic value that was confirmed in the validation cohort. However, ASXL1mutations conferred a worse prognosis when associated with a mutation in TP53or high-risk genes. This study provides a new definition of adverse mutations in myelofibrosis with the addition of TP53, CBL, NRAS, KRAS, and U2AF1to previously described genes. Furthermore, our results argue that ASXL1mutations alone cannot be considered detrimental.
- Published
- 2021
- Full Text
- View/download PDF
10. The metabolic reprogramming in acute myeloid leukemia patients depends on their genotype and is a prognostic marker
- Author
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Lo Presti, Caroline, Fauvelle, Florence, Jacob, Marie-Christine, Mondet, Julie, and Mossuz, Pascal
- Abstract
Leukemic cells display some alterations in metabolic pathways, which play a role in leukemogenesis and in patients’ prognosis. To evaluate the characteristics and the impact of this metabolic reprogramming, we explore the bone marrow samples from 54 de novo acute myeloid leukemia (AML) patients, using an untargeted metabolomics approach based on proton high-resolution magic angle spinning-nuclear magnetic resonance. The spectra obtained were subjected to multivariate statistical analysis to find specific metabolome alterations and biomarkers correlated to clinical features. We found that patients display a large diversity of metabolic profiles, according to the different AML cytologic subtypes and molecular statuses. The link between metabolism and molecular status was particularly strong for the oncometabolite 2-hydroxyglutarate (2-HG), whose intracellular production is directly linked to the presence of isocitrate dehydrogenase mutations. Moreover, patients’ prognosis was strongly impacted by several metabolites, such as 2-HG that appeared as a good prognostic biomarker in our cohort. Conversely, deregulations in phospholipid metabolism had a negative impact on prognosis through 2 main metabolites (phosphocholine and phosphoethanolamine), which could be potential aggressiveness biomarkers. Finally, we highlighted an overexpression of glutathione and alanine in chemoresistant patients. Overall, our results demonstrate that different metabolic pathways could be activated in leukemic cells according to their phenotype and maturation levels. This confirms that metabolic reprogramming strongly influences prognosis of patients and underscores a particular role of certain metabolites and associated pathways in AML prognosis, suggesting common mechanisms developed by leukemic cells to maintain their aggressiveness even after well-conducted induction chemotherapy.
- Published
- 2021
- Full Text
- View/download PDF
11. Differential association of calreticulin type 1 and type 2 mutations with myelofibrosis and essential thrombocytemia: relevance for disease evolution
- Author
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Xénia Cabagnols, J Mondet, Isabelle Plo, Pascale Saussoy, Florence Pasquier, Jean-Christophe Ianotto, Laurent Knoops, Nicole Casadevall, Olivier Mansier, Vincent Ribrag, C Marzac, Eric Solary, Marie-Christiane Vekemans, M J Mozziconacci, Eric Lippert, Anne Murati, Stefan N. Constantinescu, Jean-François Viallard, François Girodon, Jean-Philippe Defour, Olivier Bluteau, J H Alexandre, Valérie Ugo, P Mossuz, William Vainchenker, Laboratoire d'Hématologie Biologique, Centre Hospitalier Régional Universitaire de Brest (CHRU Brest), Département d'hématologie, Groupe d'Etude de la Thrombose de Bretagne Occidentale (GETBO), Institut Brestois Santé Agro Matière (IBSAM), Université de Brest (UBO)-Université de Brest (UBO)-Université de Brest (UBO), TheREx, Techniques de l'Ingénierie Médicale et de la Complexité - Informatique, Mathématiques et Applications, Grenoble - UMR 5525 (TIMC-IMAG), VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Laboratoire d'hématologie cellulaire et moléculaire (DBPC), CHU Grenoble-CHU Grenoble, Université Grenoble Alpes - UFR Pharmacie (UGA UFRP), Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Lipides - Nutrition - Cancer (U866) (LNC), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Bourgogne (UB)-Ecole Nationale Supérieure de Biologie Appliquée à la Nutrition et à l'Alimentation de Dijon (ENSBANA)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Université de Bordeaux (UB), Service de Médecine Interne et Maladies Infectieuses [Pessac], CHU Bordeaux [Bordeaux]-Hôpital Haut-Lévêque [CHU Bordeaux], CHU Bordeaux [Bordeaux], Biothérapies des maladies génétiques et cancers, Université Bordeaux Segalen - Bordeaux 2-Institut National de la Santé et de la Recherche Médicale (INSERM), 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), Imagine - Institut des maladies génétiques (IMAGINE - U1163), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Service de Génétique Médicale [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), Service de Neurologie [Lille], Hôpital Roger Salengro [Lille]-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Laboratoire de recherche translationnelle, Direction de la recherche [Gustave Roussy], Institut Gustave Roussy (IGR)-Institut Gustave Roussy (IGR), 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), Laboratoire d'Excellence du Globule Rouge, Villejuif, France, Institut Gustave Roussy (IGR), UCL - SSS/DDUV - Institut de Duve, UCL - (SLuc) Service de biologie hématologique, UCL - SSS/IREC/SLUC - Pôle St.-Luc, Université de Brest (UBO)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut Brestois Santé Agro Matière (IBSAM), Université de Brest (UBO)-Université de Brest (UBO), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Laboratoire d'hématologie cellulaire et moléculaire (DBPC), Université de Bourgogne (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Ecole Nationale Supérieure de Biologie Appliquée à la Nutrition et à l'Alimentation de Dijon (ENSBANA), Département de neurologie [Lille], Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Centre Hospitalier Régional Universitaire de Brest ( CHRU Brest ), Groupe d'Etude de la Thrombose de Bretagne Occidentale ( GETBO ), Université de Brest ( UBO ), Techniques de l'Ingénierie Médicale et de la Complexité - Informatique, Mathématiques et Applications [Grenoble] ( TIMC-IMAG ), Université Joseph Fourier - Grenoble 1 ( UJF ) -Institut polytechnique de Grenoble - Grenoble Institute of Technology ( Grenoble INP ) -IMAG-Centre National de la Recherche Scientifique ( CNRS ) -Université Grenoble Alpes ( UGA ) -Université Joseph Fourier - Grenoble 1 ( UJF ) -Institut polytechnique de Grenoble - Grenoble Institute of Technology ( Grenoble INP ) -IMAG-Centre National de la Recherche Scientifique ( CNRS ) -Université Grenoble Alpes ( UGA ) -Laboratoire d'hématologie cellulaire et moléculaire ( DBPC ), Université Grenoble Alpes - UFR Pharmacie ( UGA UFRP ), Université Grenoble Alpes ( UGA ), Lipides - Nutrition - Cancer (U866) ( LNC ), Université de Bourgogne ( UB ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Ecole Nationale Supérieure de Biologie Appliquée à la Nutrition et à l'Alimentation de Dijon ( ENSBANA ), Chimie Organique et Bioorganique : Reactivité et Analyse ( COBRA ), Centre National de la Recherche Scientifique ( CNRS ) -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 ), Normandie Université ( NU ) -Centre National de la Recherche Scientifique ( CNRS ) -Université de Rouen Normandie ( UNIROUEN ), Normandie Université ( NU ) -Centre National de la Recherche Scientifique ( CNRS ), Université de Bordeaux ( UB ), Université Bordeaux Segalen - Bordeaux 2-Institut National de la Santé et de la Recherche Médicale ( INSERM ), 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 ), Imagine - Institut des maladies génétiques ( IMAGINE - U1163 ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Université Paris Descartes - Paris 5 ( UPD5 ), Assistance publique - Hôpitaux de Paris (AP-HP)-CHU Necker - Enfants Malades [AP-HP], Hôpital Roger Salengro-Centre Hospitalier Régional Universitaire [Lille] ( CHRU Lille ), Institut Gustave Roussy ( IGR ) -Institut Gustave Roussy ( IGR ), Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Institut Gustave Roussy ( IGR ) -Université Paris-Sud - Paris 11 ( UP11 ), Institut Gustave Roussy ( IGR ), Université de Brest (UBO)-Institut Brestois Santé Agro Matière (IBSAM), CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut Gustave Roussy (IGR)-Université Paris-Sud - Paris 11 (UP11), Aix Marseille Université ( AMU ) -Institut Paoli-Calmettes-Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Centre National de la Recherche Scientifique ( CNRS ), Assistance publique - Hôpitaux de Paris (AP-HP)-Hopital Necker-Enfants Malades, Université Paris-Sud - Paris 11 ( UP11 ) -Institut Gustave Roussy ( IGR ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ), and Université de Lille-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille)
- Subjects
Male ,Adult ,Cancer Research ,Adolescent ,Essential/*genetics ,[SDV]Life Sciences [q-bio] ,Essential Thrombocytemia ,Biology ,medicine.disease_cause ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,[ SDV.MHEP ] Life Sciences [q-bio]/Human health and pathology ,medicine ,[ SDV.MHEP.HEM ] Life Sciences [q-bio]/Human health and pathology/Hematology ,Protein Isoforms ,Humans ,Thrombocythemia ,Myelofibrosis ,Child ,ComputingMilieux_MISCELLANEOUS ,030304 developmental biology ,Aged ,Genetics ,Aged, 80 and over ,0303 health sciences ,Mutation ,[ SDV ] Life Sciences [q-bio] ,Protein Isoforms/*genetics ,[SDV.MHEP.HEM]Life Sciences [q-bio]/Human health and pathology/Hematology ,Hematology ,Middle Aged ,medicine.disease ,Calreticulin/*genetics ,Disease evolution ,Oncology ,Aged 80 and over ,Primary Myelofibrosis ,030220 oncology & carcinogenesis ,biology.protein ,Female ,Calreticulin ,[SDV.MHEP]Life Sciences [q-bio]/Human health and pathology ,Thrombocythemia, Essential ,Primary Myelofibrosis/*genetics - Abstract
Differential association of calreticulin type 1 and type 2 mutations with myelofibrosis and essential thrombocytemia: relevance for disease evolution
- Published
- 2014
- Full Text
- View/download PDF
12. Endogenous Megakaryocytic Colony Formation and Thrombopoietin Sensitivity of Megakaryocytic Progenitor Cells Are Useful to Distinguish Between Essential Thrombocythemia and Reactive Thrombocytosis
- Author
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A. Castinel, J. Wang, B. Polack, M.F. Sotto, F. Cousin, F. Blanc-Jouvan, J.J. Sotto, J.Q. Mi, P. Mossuz, and M. Chauvet
- Subjects
Male ,Immunology ,Drug Resistance ,Endogeny ,Biology ,Culture Media, Serum-Free ,Colony-Forming Units Assay ,Diagnosis, Differential ,Reactive thrombocytosis ,Megakaryocyte ,Bone Marrow ,hemic and lymphatic diseases ,medicine ,Humans ,Progenitor cell ,Polycythemia Vera ,Thrombopoietin ,Thrombocytosis ,Essential thrombocythemia ,Hematology ,Hematopoietic Stem Cells ,medicine.disease ,medicine.anatomical_structure ,Colony formation ,Female ,Collagen ,Megakaryocytes ,Thrombocythemia, Essential - Abstract
Diagnosis of essential thrombocythemia (ET) is controversial and remains mainly an exclusion diagnosis. Endogenous megakaryocyte colony (EMC) formation have been largely evaluated to identify specific criteria for ET, but results are impeded by the lack of medium standardization. We evaluated megakaryocyte (MK) colony formation in a serum-free collagen-based medium, without cytokine and in the presence of various concentrations of thrombopoietin (TPO). Thirty-six bone marrows from patients diagnosed with ET (n = 11), polycythemia vera (PV; n = 12), reactive thrombocytosis (RT; n = 6) and healthy donors (n = 7) were assessed. We demonstrate that 11 out 11 of the ET patients had spontaneous megakaryocyte colony-forming unit (CFU-MK) formation, in contrast to none of the RT patients and healthy donors. MK progenitors from ET patients remained responsive to TPO, because exogenous addition of TPO significantly increased cloning efficiency. Moreover, at low doses of TPO (0.5 ng/ml and 5 ng/ml), the number of positive cultures and mean number of TPO stimulated CFU-MK were significantly higher in cultures of cells from patients with ET than in patients with RT. In summary, we have described a standardized serum-free, collagen-based assay that allows differential diagnosis of ET and RT, according to endogenous CFU-MK formation and sensitivity to TPO.
- Published
- 2001
- Full Text
- View/download PDF
13. ELLES VOTENT.
- Author
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MOSSUZ-LAVAU, Janine
- Abstract
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- Published
- 2017
14. Le diagnostic biologique de purpura thrombotique thrombocytopénique : rien ne remplace l’œil du biologiste
- Author
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J. Mondet, P. Mossuz, C. Vettier, Françoise Sarrot-Reynauld, M. Lugosi, Alban Deroux, and Laurence Bouillet
- Subjects
Gastroenterology ,Internal Medicine - Published
- 2013
- Full Text
- View/download PDF
15. [Assessment of the agreement between three automated hematology instruments]
- Author
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F, Ennouchi, S Anselme, Martin, V, Chanteperdrix, N Roux, Buisson, B, Polack, and P, Mossuz
- Subjects
Automation ,Humans ,Reproducibility of Results ,Hematology ,Blood Chemical Analysis - Published
- 2002
16. Validation of electronic cell counts by quantitative buffy coat analysis (QBC)
- Author
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B, Polack, G, Pernod, P, Mossuz, J P, Vigier, S, Giraud, and L, Kolodié
- Subjects
Leukocyte Count ,Platelet Count ,Humans ,Reproducibility of Results ,Blood Cell Count ,Electronics, Medical - Abstract
A total of 458 eight blood cell counts, accompanied by blood film reviews of the same samples, were performed with an electronic cell counter and with the QBC. In the great majority of cases, the QBC gave fast and accurate control of the flags from the electronic counter, thus avoiding the necessity for manual validation with its associated risks of infection and contaminations. Furthermore, QBC non readability could be related to microcytosis and hypochromia and hence point to possible cases of congenital or acquired haemoglobinopathy.
- Published
- 1995
17. A simultaneous evaluation of three multiparametric coagulation instruments: BFA, HEMOLAB and STA
- Author
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G, Pernod, B, Bouabana, B, Desrousseau, P, Mossuz, J M, Drevait, B, Maljournal, D, Rouhan, L, Kolodié, and B, Polack
- Subjects
Evaluation Studies as Topic ,Linear Models ,Prothrombin Time ,Fibrinogen ,Humans ,Reproducibility of Results ,Partial Thromboplastin Time ,Blood Coagulation Tests - Abstract
In the present paper, three multiparametric coagulation instruments were evaluated with regard to chronometric tests for aPTT (CK-Prest and automated APTT), PT (Recombiplastin and Thromborel), fibrinogen and factors of the prothrombin complex. Analysis of within-run precision and linearity and comparative studies showed the analytical performances of the instruments to differ according to the reagents used and emphasized the difficulty of finding the best compromise between instrument and reagent. On the basis of this study, the mechanical instrument appeared to be more versatile than the optical machines. This conclusion could however be modified after further evaluation of the recent new generation coagulation instruments.
- Published
- 1994
18. Influence of the Assays of Endogenous Colony Formation and Serum Erythropoietin on the Diagnosis of Polycythemia Vera and Essential Thrombocythemia
- Author
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Mossuz, Pascal
- Published
- 2006
- Full Text
- View/download PDF
19. Endogenous Megakaryocytic Colony Formation and Thrombopoietin Sensitivity of Megakaryocytic Progenitor Cells Are Useful to Distinguish Between Essential Thrombocythemia and Reactive Thrombocytosis
- Author
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Mi, J.Q., Blanc-Jouvan, F., Wang, J., Sotto, M.F., Cousin, F., Castinel, A., Chauvet, M., Sotto, J.J., Polack, B., and Mossuz, P.
- Abstract
Diagnosis of essential thrombocythemia (ET) is controversial and remains mainly an exclusion diagnosis. Endogenous megakaryocyte colony (EMC) formation have been largely evaluated to identify specific criteria for ET, but results are impeded by the lack of medium standardization. We evaluated megakaryocyte (MK) colony formation in a serum-free collagen-based medium, without cytokine and in the presence of various concentrations of thrombopoietin (TPO). Thirty-six bone marrows from patients diagnosed with ET (n = 11), polycythemia vera (PV; n = 12), reactive thrombocytosis (RT; n = 6) and healthy donors (n = 7) were assessed. We demonstrate that 11 out 11 of the ET patients had spontaneous megakaryocyte colony-forming unit (CFU-MK) formation, in contrast to none of the RT patients and healthy donors. MK progenitors from ET patients remained responsive to TPO, because exogenous addition of TPO significantly increased cloning efficiency. Moreover, at low doses of TPO (0.5 ng/ml and 5 ng/ml), the number of positive cultures and mean number of TPO stimulated CFU-MK were significantly higher in cultures of cells from patients with ET than in patients with RT. In summary, we have described a standardized serum-free, collagen-based assay that allows differential diagnosis of ET and RT, according to endogenous CFU-MK formation and sensitivity to TPO.
- Published
- 2001
- Full Text
- View/download PDF
20. Biodiversity as a barrier to glioma cell invasion.
- Author
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Selek, Laurent, Mauconduit, Franck, Nissou, Marie-France, Nugue, Guillaume, Lahrech, Hana, Berger, François, Mossuz, Pascal, and Wion, Didier
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GLIOMAS ,CANCER invasiveness ,BIODIVERSITY ,BRAIN cancer ,METASTASIS ,BRAIN tumors - Abstract
Abstract: Gliomas are extremely aggressive and lethal forms of brain cancer. Unlike many other cancer types, glioma cells rarely metastasize. They spread throughout the brain and invasiveness of glioma cells is a major cause of therapeutic failure. In plant ecosystem, biodiversity acts locally as a barrier to ecological invasion. By analogy, we hypothesize that the low cell diversity of differentiated tissues, a counterpart of their functional specificity, opens the way to local cancer cell invasion. Seeding the brain tumor microenvironment with heterogeneous cell populations could be a mean to limit cancer cell invasion by enhancing cell biodiversity. [Copyright &y& Elsevier]
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- 2012
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21. L’hyperexpression de la protéine S100A8 dans les plasmas médullaires de patients atteints de leucémie aiguë myéloïde provient des cellules monocytaires
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Mondet, Julie, Lauvin, David, Presti, Caroline Lo, Jacob, Marie-Christine, Meunier, Mathieu, Giraudon, Emmanuelle, Lefebvre, Christine, Berthier, Sylvie, McLeer, Anne, Park, Sophie, and Mossuz, Pascal
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La protéine S100A8 est dérégulée dans de nombreux types de cancer. Dans les leucémies aiguës myéloïdes (LAM), son expression intracellulaire est associée à un pronostic défavorable. Bien qu’elle puisse être sécrétée et qu’elle exerce une activité d’alarmine, le rôle extracellulaire de la protéine S100A8 dans la niche hématopoïétique reste méconnu. Nous avons mesuré la protéine S100A8 par technique ELISA chez 78 plasmas médullaires, dont 50 LAM. La concentration en S100A8 ([S100A8]) est significativement plus élevée chez les patients atteints de LAM que chez les patients sains ou présentant des états pré-leucémiques (syndrome myéloprolifératif, syndrome myélodysplasique). Dans les LAM, nous montrons que la [S100A8] est significativement associée à la leucocytose. Fait intéressant, la [S100A8] est fortement corrélée avec le pourcentage de monocytes mais négativement corrélée avec le pourcentage de blastes médullaires. Ce lien entre la [S100A8] et monocytes a été confirmé par la corrélation avec le pourcentage de cellules CD36+ CD64+ CD14+ déterminé par immunophénotypage. De plus, la [S100A8] est plus élevée dans la leucémie aiguë monocytaire et myélomonocytaire (LAM4/5) que dans les autres sous-types de FAB. En analyse multivariée, la [S100A8] est principalement exprimée lorsque les blastes exprimaient des marqueurs monocytaires CD11c+, CD4+, CD3- ou CD117-. Pour confirmer l’origine monocytaire de la protéine S100A8, nous avons mesuré par cytométrie en flux la protéine S100A8 intracellulaire dans les blastes, les lymphocytes, les PNN, les promonocytes et les monocytes de patients atteints de LAM. Les blastes CD34+ expriment peu de S100A8 intracellulaire. La protéine S100A8 est significativement plus exprimée par les monocytes et les promonocytes, confirmant par une seconde approche l’origine monocytaire de la S100A8 dans les LAM. Pour finir, nous avons étudié l’impact pronostique de la [S100A8] qui semble associée à une diminution de la survie globale dans les LAM4/M5. En conclusion, nos travaux caractérisent la secrétion de S100A8 dans les plasmas médullaires et son rôle dans la leucémogenèse.
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- 2021
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22. Effects of two sex steroids (17 estradiol and testosterone) on proliferation and clonal growth of the human monoblastic leukemia cell line, U937
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Mossuz, P., Cousin, F., Castinel, A., Chauvet, M., Sotto, M.-F., Polack, B., Sotto, J. J., and Kolodie, L.
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- 1998
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23. Les Françaises aux urnes (1945-1994): Bilan
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Mossuz-Lavau, Janine
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- 1995
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24. Reproducible Scoring of CFU-GM and BFU-E Grown in Collagen-Based Semisolid Medium After a Short (3 h) Training
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Dobo, Irene, Bidet, Jean-Marc, Acquart, Sophie, Allegraud, Annie, Amiot, Laurence, Boccaccio, Catherine, Boiret, Nathalie, Domenech, Jorge, Mossuz, Pascal, Sensebe, Luc, Wunder, Eckart, Zandecki, Marc, and Hermouet, Sylvie
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Colony counting remains an important source of variation in colony-forming unit-granulocytemacrophage (CFU-GM) assays performed in methylcellulose or agar. We studied the reliability of colony scoring of CFU-GM assays carried out with collagen, a matrix that allows gel collection on glass slides and in situ cellular morphology. Fourteen slides were exchanged among laboratories, and two rounds of colony (CFU-GM and burst-forming units-erythrocyte [BFU-E]) counting were performed by 11 (first counting), then 8 (second counting) different laboratories, the majority of which had no previous experience of collagen gel cultures and reading. Two-way analysis of variance (ANOVA) of the first round of colony counting showed significant differences among centers in CFU-GM counts (p = 0.023) but not in BFU-E counts (p = 0.163). Coefficients of variation for the 14 slides ranged from 22% to 50% (median 28%) for CFU-GM counts and from 12% to 74% (median 23%) for BFU-E counts. After a 3h session of collective colony reading attended by members of 8 laboratories, a second round of colony counting was performed. This time, ANOVA showed no significant difference among centers for CFU-GM (p = 0.533) and BFU-E (p = 0.328) counts, and coefficients of variation were significantly improved, with medians of 17% for CFU-GM counts and 20% for BFU-E counts. In addition, when data from the second round of readings were analyzed without the 2 centers counting consistently low (center 8) or consistently high (center 5), variance among centers was further improved for both CFU-GM (p = 0.798) and BFU-E (p = 0.619). In summary, this study shows for the first time that reproducible BFU-E and CFU-GM scoring can be achieved using collagen-based semisolid medium (now commercially available) as long as adequate training in colony identification is provided.
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- 1999
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25. Performance of the NOMAD transition radiation detector
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Bassompierre, G., Bunyatov, S., Fazio, T., Gaillard, J.-M., Gouanere, M., Manola-Poggioli, E., Mossuz, L., Mendiburu, J.-P., Nedelec, P., and Nefedov, Y.
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- 1998
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26. Optimized Factor V Gene Mutation Detection Using Buffy-Coat Direct PCR
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Pernod, Gilles, Mossuz, Pascal, and Polack, Benoit
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- 1997
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27. Effects of retinoic acid on a new human erythromegakaryocytic cell line AP-217
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Mossuz, P., Prandini, M. H., Leroux, D., Valiron, O., Schweitzer, A., Sassetti, B., and Kolodie, L.
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- 1997
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28. L'attitude des jeunes à l'egard de Z'administration: Contribution à l'etude des relations entre les administrés et leur administration
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Mossuz-Lavau, Janine
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- 1975
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29. Exemple des dispositions mises en place pour le suivi médical des salariés utilisant des nanomatériaux au service de santé et laboratoire de biologie médicale du CEA de Grenoble
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Moro, Claire and Mossuz, Veronique Chamel
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Le CEA a mis en place dès l’utilisation des nanomatériaux début 2000 dans ses activités de recherche une démarche sécuritaire qui vise à ne pas exposer ses salariés et a initié toute une stratégie dans la recherche en nano sécurité qui regroupe un ensemble de compétences variées associant les médecins du travail, les ingénieurs sécurité, les biologistes médicaux et les chercheurs. À ce jour, il n’existe pas de législation spécifique concernant la surveillance médicale des salariés soumis aux nanomatériaux. Au niveau du CEA, la surveillance médicale des salariés assurée par les médecins du service de santé au travail comprend au niveau de la fiche professionnelle nominative une spécification de la nuisance Nano, elle-même divisée en nanomatériaux, et en nanotubes de carbone. Cette fiche de poste est complétée par une analyse du risque nano qui décrit le poste utilisant les nanomatériaux. En parallèle, un fichier informatique est mis à jour et permet de constituer un registre des salariés exposés aux nanomatériaux. Il permet une traçabilité pour les études épidémiologiques futures. La visite médicale est annuelle avec un examen clinique et un bilan biologique général. En effet, il n’existe pas, à ce jour, d’indicateur biologique d’exposition pour les nanomatériaux. Pour le suivi biométrologique, seule la composition chimique du nanomatériaux sera prise en considération pour la mise en place d’un tel suivi. En parallèle à la réalisation des bilans biologiques et toxicologiques des salariés, le laboratoire de biologie médicale interne du CEA poursuit une activité de recherche et est conduite pour développer des indicateurs d’exposition ou d’effet à ce type de composés avec un accent sur la voie respiratoire qui semble la plus préoccupante en milieu du travail. Plusieurs études visent à développer des outils pour caractériser les nanoparticules dans les fluides biologiques et, en particulier, dans des milieux respiratoires tel le condensat d’air exhalé (méthode par diffraction de la lumière tel le zetaziser, ICP MS, ICP MS couplé à la single particleet technique de microscopie électronique à balayage et/ou à transmission).
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- 2016
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30. Intérêts cliniques de l’étude du stress oxydant dans les LAM de novo de l’adulte
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Mondet, Julie, Garrel, Catherine, Faure, Patrice, Cahn, Jean Yves, and Mossuz, Pascal
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Au cours de l’hématopoïèse normale, la modulation des espèces réactives de l’oxygène (ROS) participe à l’équilibre entre les mécanismes de prolifération/renouvellement/différenciation des cellules souches hématopoïétiques. Une dérégulation de la balance oxydative a été décrite au cours de l’initiation et de la progression du processus leucémique dans les leucémies aiguës myéloïdes (LAM) [1,2]. Dans ce contexte, nous avons réalisé une étude clinique sur des LAM de l’état du métabolisme oxydoréductif au diagnostic et en fin de chimiothérapie inductive.
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- 2015
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31. Intérêt de la quantification des pseudo corps de Howell-Jolly dans les polynucléaires neutrophiles par l’analyseur CellaVision DM96 pour le diagnostic des toxicités hématologiques du ganciclovir
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Revol, Bruno, Thiebaut-Bertrand, Anne, Carré, Martin, Bulabois, Claude-Eric, Mossuz, Pascal, and Mondet, Julie
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Le ganciclovir est un analogue nucléosidique inhibant de façon compétitive les ADN polymérases virales. Cet antiviral est connu pour provoquer des neutropénies modérées à sévères par inhibition dose-dépendante de l’ADN polymérase des cellules hématopoïétiques. La présence de fragments nucléaires appelés pseudo corps de Howell-Jolly (HJBLI) dans les polynucléaires neutrophiles (PNN) a été corrélée avec une neutropénie induite par le ganciclovir ou par sa prodrogue, le valganciclovir. Notre travail a permis de définir le pourcentage seuil de PNN présentant des HJBLI permettant d’affirmer la toxicité des antiviraux. La quantification des HJBLI a été effectuée grâce à l’analyseur CellaVision DM 96 (Sysmex) chez 10 patients traités par ganciclovir ou valganciclovir ayant eu un ou plusieurs hémogrammes dans notre établissement. Au total, 46 hémogrammes ont été rétrospectivement examinés pour lesquels le pourcentage de PNN présentant des HJBLI a été défini. Ce pourcentage a été comparé à la présence d’une neutropénie induite par le ganciclovir (ou le valganciclovir) (n=18) ou à son absence (n=28) (test de Mann-Whitney). Un pourcentage significativement plus élevé de neutrophiles présentant des pseudo corps de Howell-Jolly a été retrouvé sur les hémogrammes neutropéniques (p<0,05). La réalisation d’une courbe ROC (logiciel SPSS) a permis de déterminer une aire sous la courbe de 0,902 pour ce biomarqueur (intervalle de confiance 95 %=0,816 à 0,988). Un seuil de 2,6 % permet d’exclure une neutropénie induite au ganciclovir (valganciclovir) avec une bonne sensibilité (Se=94,4 %) associée à une bonne spécificité (Sp=71,4 %). Par ailleurs, notre étude est la première à décrire la présence de pseudo corps de Howell-Jolly dans des précurseurs granuleux (myélocytes et promyélocytes). Pour conclure, la quantification semi-automatisée par l’analyseur CellaVision DM 96 permet une mesure rapide et facilement mise en œuvre du pourcentage de neutrophiles porteurs de HJBLI, confirmant le diagnostic des toxicités hématologiques induites par le ganciclovir.
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- 2016
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32. Exposition aux nanoparticules en milieu aéroportuaire : étude des condensats d’air exhalé et des fonctions respiratoires selon différents niveaux d’exposition
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Klerlein, M., Touri, L., Durand, C., Mossuz, V., Molinari, N., and Chanez, P.
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L’objectif de cette étude est d’étudier l’impact respiratoire de l’exposition aux nanoparticules (NP) émises par les moteurs d’avion, en comparant une population fortement exposée à une population faiblement exposée.
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- 2015
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33. Successful Treatment of Lupus Anticoagulant-Hypoprothrombinemia Syndrome Using Intravenous Immunoglobulins
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Pernod, Gilles, Arvieux, Josiane, Carpentier, Patrick H, Mossuz, Pascal, Bosson, Jean Luc, and Polack, Benoît
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- 1997
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34. Inadequate Quality of a Blood Collection Tube Containing an Anticoagulant/Platelet Inhibitor Mixture
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Polack, Benoît L, Barro, Claire, Mossuz, Pascal, and Pernod, Gilles
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- 1997
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35. Differential Association of Calreticulin Type 1 and Type 2 Mutations with Myelofibrosis and Essential Thrombocytemia: Relevance for Disease Evolution
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Cabagnols, Xenia, Defour, Jean-Philippe, Ugo, Valérie, Ianotto, Jean Christophe, Mossuz, Pascal, Mondet, Julie, Girodon, Francois, Ji-Hye, Alexandre, Mansier, Olivier, Viallard, Jean François, Lippert, Eric, Murati, Anne, Mozziconacci, MJ, Legrand, Ollivier, Saussoy, Pascale, Vekemans, Marie-Christianne, Knoops, Laurent, Pasquier, Florence, Ribrag, Vincent, Solary, Eric, Plo, Isabelle, Constantinescu, Stefan N., Casadevall, Nicole, Vainchenker, William, Marzac, Christophe, and Bluteau, Olivier
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No relevant conflicts of interest to declare.
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- 2014
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36. Microarray and Proteomic Analysis of Myeloproliferative Neoplasms,
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Cokic, Vladan P, Mossuz, Pascal, Han, Jing, Diklic, Milos, Budec, Mirela, Sefer, Dijana, Lekovic, Danijela, Antic, Darko, Brekovic, Tijana, Mojsilovic, Sonja, Puri, Raj K, Noguchi, Constance Tom, and Schechter, Alan N
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No relevant conflicts of interest to declare.
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- 2011
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37. Expression of S100A8 in Leukemic Cells Predicts Poor Survival in De Novo AML Patients.
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Mossuz, Pascal, Nicolas, Emmanuelle, Ramus, Claire, Berthier, Sylvie, Arlotto, Marie, Lefebvre, Christine, Morel, Françoise, Garin, Jérome, Ifrah, Norbert, Berger, François, and Cahn, Jean-Yves
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Treatment strategies of acute myeloid leukaemia (AML) largely depend on their cytogenetic status. However this stratification remains insufficient for almost half of the patients, requiring subsequent molecular investigations. In our study, we used mass spectrometry-based proteomic approaches to characterize de novo-AML. Samples (blood mononuclear cells collected and frozen before any treatment) were retrospectively selected from two independent sets of newly diagnosed AML patients, included in prospective clinical trials of the GOELAMS (Groupe d'Etude Ouest-Est des Leucémies aigues). We showed that protein signature of leukemic cells defined 2 groups of patients that displayed significant variation of overall and disease free survival (Fig-1A). This proteomic classification refined cytogenetic classes. Combination of proteomic and cytogenetic allowed a new stratification highly correlated with outcome. In particular, AML with intermediate and high risk cytogenetic could be respectively subdivided according to their protein profiles in two subgroups with significantly different survival (Fig-1B). Interestingly in both type 2 and type 3 cytogenetic groups, a good proteomic profile identified subsets of patients with significantly increased probability of survival, suggesting that the weigh of a good proteomic risk might predominate over a bad predictive cytogenetic. Among proteins expressed by leukemic cells, we isolated a 10800 Da marker that retained the highest discriminative value between alive and deceased patients. The median intensity of the 10800 peak was 94.3 ± 97.7 (7.5-368.7) in living patients compared to 214.2 ± 163.7 (9.0-693.4) in dead patients (p= 0.009). Among normal cytogenetic patients, intensity levels of the marker was also significantly different between dead (217.4 ± 155.7 range 10.4-612.8) and alive patients (26.0 ± 73.1, range 6-168.1; p= 0.008) (Fig-1C). Using a thresholds of 100 (calculated by ROC curves) we were able to correctly identify 82% of patients who died (patients greater than 100) and 70% of patients who stayed alive (patients lower than 100) with a specificity of 65% and 82% respectively. These data were confirmed in a second independent set of patients. 10800 Da marker was identified by MS peptide sequencing as S100A8 (also designated MRP8 or calgranulin A), a cytosolic protein of mature granulocytes. Western blot analysis confirmed its expression mainly in AML patients with the worst prognostic but not in all AML patients, neither in some leukemic and lymphoma cell lines, arguing for a selective deregulation associated with poor prognosis. These results show that expression of S100A8 in leukemic cells at diagnosis might be considered as a predictor of low survival.No relevant conflicts of interest to declare.
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- 2009
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38. Les homosexuels et le sida (Book).
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Mossuz-Lavau, Janine
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- 1990
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39. Comparison of a Barcode-Based Smartphone Application to a Questionnaire to Assess the Use of Cleaning Products at Home and Their Association with Asthma Symptoms
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Lemire, Pierre, Temam, Sofia, Quinot, Catherine, Sévin, Etienne, Remacle, Sophie, Supernant, Karine, Dumas, Orianne, Le Moual, Nicole, Eyriey, E., Licinia, A., Vellement, A., Pin, Isabelle, Hofmann, P., Hullo, Églantine, Llerena, Catherine, Morin, X., Morlot, A., Lepeule, Johanna, Lyon-Caen, Sarah, Philippat, Claire, Quentin, Joane, Siroux, Valérie, Slama, Rémy, Faraldo, Beatrice, Centre de recherche en épidémiologie et santé des populations (CESP), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Paul Brousse-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris-Saclay, MGEN Foundation for Public Health [Paris] (FESP-MGEN), Institute for Advanced Biosciences / Institut pour l'Avancée des Biosciences (Grenoble) (IAB), Centre Hospitalier Universitaire [Grenoble] (CHU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Etablissement français du sang - Auvergne-Rhône-Alpes (EFS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), EpiConcept [Paris], The Sepages Study Group., Fondation d’entreprise MGEN pour la santé publique (FESP MGEN), Anses-PNR-EST-2015-1-022/Ademe-1594C0091, Anses-PNR-EST-2017-1-101/Ademe-1762C0021 Seventh Framework Programme, FP7: FP7/2007-206, N308333-HELIX European Research Council, ERC: N 311765-E-DOHaD Agence Nationale de la Recherche, ANR: 14-CE21-0007-01, 19-CE36-0003-01, ANR 18-CE36-005, ANR-12-PDOC-0029-01, ANR-15-IDEX, ANR-15-IDEX-02 Institut National de la Santé et de la Recherche Médicale, Inserm Fondation de France: CLI-MATHES—00081169 Commissariat Général à l'Investissement, CGI Agence Nationale de Sécurité Sanitaire de l’Alimentation, de l’Environnement et du Travail, ANSES: PNR-EST-2018-1-264 Agir pour les Maladies Chroniques, Acknowledgments: We acknowledge the role of SEPAGES cohort study group: E. Eyriey, A. Licinia, A. Vellement (Groupe Hospitalier Mutualiste, Grenoble), I. Pin, P. Hofmann, E. Hullo, C. Llerena (Grenoble University Hospital, La Tronche), X. Morin (Clinique des Cèdres, Echirolles), A. Morlot (Clinique Belledonne, Saint-Martin d’Hères), J. Lepeule, S. Lyon-Caen, C. Philippat, I. Pin, J. Quentin, V. Siroux, R. Slama (Inserm, CNRS, University Grenoble Alpes IAB research center). We thank A. Benlakhryfa, L. Borges, Y. Gioria, clinical research assistants, J. Giraud, M. Marceau, M.-P. Martin, nurses, E. Charvet, A. Putod, midwives, M. Graca, K. Gridel, C. Pelini, fieldworkers, K. Guichardet, A. Levanic, C. Martel, E. Quinteiro neuropsychologists, the sta↵ from Grenoble Center for Clinical Investigation (CIC): J.-L. Cracowski, C. Cracowski, E. Hodaj, D. Abry, N. Gonnet and A. Tournier. A warm thank you also to M. Althuser, S. Althuser, F. Camus-Chauvet, P. Dusonchet, S. Dusonchet, L. Emery, P. Fabbrizio, P. Ho↵mann, D. Marchal André, X. Morin, E. Opoix, L. Pacteau, P. Rivoire, A. Royannais, C. Tomasella, T. Tomasella, D. Tournadre, P. Viossat, E. Volpi, S. Rey, E. Warembourg and clinicians from Grenoble University Hospital for their support in the recruitment of the study volunteers. We also thank A. Buchet, S.F. Caraby, J.-N. Canonica, J. Dujourdil, E. Eyriey, P. Hofmann, M. Jeannin, A. Licina, X. Morin, A. Nicolas, and all midwives from the four maternity wards of Grenoble urban areas. We thank B. Chevolon, C. Cornes, A.S. Gauchez, D. Guergour, P. Faure, J. Arnaud for thyroid hormones assessment. We thank the team of L. Chaperod (EFS) for its implication on the immunological aspects of the project. We thank G. Uzu (IRD) and J.-L. Ja↵rezo (CNRS) for their implication on PM oxidative potential assessment. We thank F.-X. Leupert, O. Bonnet and L. Goirand for the access to the birth certificate database from the Conseil Général de l’Isère. Sépages biospecimens are stored at Grenoble University Hospital (CHU-GA) biobank (bb-0033-00069), we would like to thank the whole CRB team, led by P. Mossuz and P. Lorimier, and in particular the technicians for the huge work of biospecimens processing and pooling: W. Jayar and L. Than, as well as G. Schummer. The Internet platform for secured data collection was developed by Epiconcept Paris (E. Sevin, S. Ployart, A. Polaert). SEPAGES data are stored thanks to Inserm RE-CO-NAI platform funded by Commissariat Général à l’Investissement, with the implication of Sophie de Visme (Inserm DSI). Many thanks to M.A. Charles, RE-CO-NAI coordinator, for her support. Finally, and importantly, we would like to express our sincere thanks to participants of the SEPAGES study. The authors are grateful for the help received from Ines Taarit and Mathias Clément to update the cleaning products ingredients database., Funding: The cohort was supported by the European Research Council (consolidator grant N 311765-E-DOHaD, PI, R. Slama), by the European Community’s Seventh Framework Programme (FP7/2007-206, grant N308333-HELIX, PI, M. Vrijheid), by ANR, the French Research Agency (PAPER project ANR-12-PDOC-0029-01, PI, J. Lepeule, SHALCOH project, 14-CE21-0007-01, PI, R. Slama, GUMME project, PI, R. Slama, ETAPE ANR 18-CE36-005, PI, J. Lepeule, EDeN project 19-CE36-0003-01, SYMER project, ANR-15-IDEX-02, PI, U. Schlattner, Mobil’Air project, ANR-15-IDEX, PI, S. Mathy, supported by University Grenoble-3Alpes), by ANSES (CNAP and HYPAXE projects, PI C. Philippat, PENDORE project, PNR-EST-2018-1-264, PI, V. Siroux), by Plan Cancer (Canc’Air project, PI, P. Guénel), by Association de Recherche sur le Cancer (ARC, PI, P. Guénel), by AGIR pour les maladies chroniques (PI, R. Slama and PRENAPAR project, V. Siroux), and Fonds de Recherche pour la Santé Respiratoire (FRSR, PI, I. Pin) and by Fondation de France (CLI-MATHES—00081169, J. Lepeule). We acknowledge the support of ANSES, Inserm and AGIR pour les maladies chroniques, for SEPAGES feasibility study. The support of 'SCUSI 2017' Région Auvergne-Rhône-Alpes programme is also acknowledged. COBANET-Sepages project was support by Anses and Ademe (COBANET: Anses-PNR-EST-2015-1-022/Ademe-1594C0091, PI: N Le Moual, CRESPINET: Anses-PNR-EST-2017-1-101/Ademe-1762C0021, PI: N Le Moual). Pierre Lemire benefited from a PhD scholarship of the University of Paris-Sud/Paris-Saclay, France., The cohort was supported by the European Research Council (consolidator grant N 311765-E-DOHaD, PI, R. Slama), by the European Community?s Seventh Framework Programme (FP7/2007-206, grant N308333-HELIX, PI, M. Vrijheid), by ANR, the French Research Agency (PAPER project ANR-12-PDOC-0029-01, PI, J. Lepeule, and EDeN project 19-CE36-0003-01, SYMER project, ANR-15-IDEX-02, PI, U. Schlattner, Mobil?Air project, ANR-15-IDEX, PI, S. Mathy, supported by University Grenoble-3Alpes), by ANSES (CNAP and HYPAXE projects, PI C. Philippat, PENDORE project, PNR-EST-2018-1-264, PI, V. Siroux), by Plan Cancer (Canc?Air project, PI, P. Gu?nel), by Association de Recherche sur le Cancer (ARC, PI, P. Gu?nel), by AGIR pour les maladies chroniques (PI, R. Slama and PRENAPAR project, V. Siroux), and Fonds de Recherche pour la Sant? Respiratoire (FRSR, PI, I. Pin) and by Fondation de France (CLIMATHES?00081169, J. Lepeule). We acknowledge the support of ANSES, Inserm and AGIR pour les maladies chroniques, for SEPAGES feasibility study. The support of ?SCUSI 2017? R?gion Auvergne-Rh?ne-Alpes programme is also acknowledged. COBANET-Sepages project was support by Anses and Ademe (COBANET: Anses-PNR-EST-2015-1-022/Ademe-1594C0091, PI: N Le Moual
- Subjects
medicine.medical_specialty ,Health, Toxicology and Mutagenesis ,[SDV]Life Sciences [q-bio] ,lcsh:Medicine ,Smartphone application ,Logistic regression ,Article ,03 medical and health sciences ,0302 clinical medicine ,Surveys and Questionnaires ,Environmental health ,Epidemiology ,Odds Ratio ,medicine ,Humans ,030212 general & internal medicine ,Association (psychology) ,smartphone application ,Asthma ,household cleaning products ,business.industry ,lcsh:R ,Public Health, Environmental and Occupational Health ,Asthma symptoms ,Odds ratio ,asthma ,medicine.disease ,3. Good health ,030228 respiratory system ,[SDV.SPEE] Life Sciences [q-bio]/Santé publique et épidémiologie ,Female ,[SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie ,Smartphone ,business ,Kappa ,Disinfectants - Abstract
International audience; Household disinfectant and cleaning products (HDCPs) assessment is challenging in epidemiological research. We hypothesized that a newly-developed smartphone application was more objective than questionnaires in assessing HDCPs. Therefore, we aimed to compare both methods, in terms of exposure assessments and respiratory health effects estimates. The women of the SEPAGES birth cohort completed repeated validated questionnaires on HDCPs and respiratory health and used an application to report HDCPs and scan products barcodes, subsequently linked with an ingredients database. Agreements between the two methods were assessed by Kappa coefficients. Logistic regression models estimated associations of HDCP with asthma symptom score. The 101 participants (18 with asthma symptom score ≥1) scanned 617 different products (580 with available ingredients list). Slight to fair agreements for sprays, bleach and scented HDCP were observed (Kappa: 0.35, 0.25, 0.11, respectively). Strength of the associations between HDCP and asthma symptom score varied between both methods but all odds ratios (OR) were greater than one. The number of scanned products used weekly was significantly associated with the asthma symptom score (adjusted-OR [CI 95%]: 1.15 [1.00–1.32]). This study shows the importance of using novel tools in epidemiological research to objectively assess HDCP and therefore reduce exposure measurement errors.
- Published
- 2021
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40. Aleukemic congenital leukemia cutis preceding monocytic leukemia with favorable outcome: A case report.
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Lo Presti C, Szymanski G, Lefebvre C, Jacob MC, Mossuz P, and Gil H
- Abstract
A newborn girl had typical "blueberry muffin" skin lesions, which shows histopathologic features of monocytic leukemia cutis. The systemic leukemia was demonstrated after one month of life. She was treated by chemotherapy, including induction and three consolidation cures, according to the ELAM02 protocol, which led to complete remission. This case report with congenital form of AML5 cutaneous localization, preceding systemic involvement, with a 5-year follow-up and positive outcome is remarkable., Competing Interests: The authors declare no conflict of interest., (© 2024 The Authors. eJHaem published by British Society for Haematology and John Wiley & Sons Ltd.)
- Published
- 2024
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41. NOX2 control over energy metabolism plays a role in acute myeloid leukaemia prognosis and survival.
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Ijurko C, Romo-González M, García-Calvo C, Sardina JL, Sánchez-Bernal C, Sánchez-Yagüe J, Elena-Herrmann B, Villaret J, Garrel C, Mondet J, Mossuz P, and Hernández-Hernández Á
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- Humans, Reactive Oxygen Species metabolism, NADPH Oxidase 2 genetics, NADPH Oxidase 2 metabolism, Glycolysis genetics, NADPH Oxidases metabolism, Leukemia, Myeloid, Acute genetics, Leukemia, Myeloid, Acute metabolism
- Abstract
Acute myeloid leukaemia (AML) is a highly heterogeneous disease, however the therapeutic approaches have hardly changed in the last decades. Metabolism rewiring and the enhanced production of reactive oxygen species (ROS) are hallmarks of cancer. A deeper understanding of these features could be instrumental for the development of specific AML-subtypes treatments. NADPH oxidases (NOX), the only cellular system specialised in ROS production, are also involved in leukemic metabolism control. NOX2 shows a variable expression in AML patients, so patients can be classified based on such difference. Here we have analysed whether NOX2 levels are important for AML metabolism control. The lack of NOX2 in AML cells slowdowns basal glycolysis and oxidative phosphorylation (OXPHOS), along with the accumulation of metabolites that feed such routes, and a sharp decrease of glutathione. In addition, we found changes in the expression of 725 genes. Among them, we have discovered a panel of 30 differentially expressed metabolic genes, whose relevance was validated in patients. This panel can segregate AML patients according to CYBB expression, and it can predict patient prognosis and survival. In summary, our data strongly support the relevance of NOX2 for AML metabolism, and highlights the potential of our discoveries in AML prognosis., Competing Interests: Declaration of competing interest The authors declare no conflict of interest., (Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved.)
- Published
- 2023
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42. Molecular Insight into Iron Homeostasis of Acute Myeloid Leukemia Blasts.
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Pourcelot E, El Samra G, Mossuz P, and Moulis JM
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- Humans, Antigens, CD34, Cell Division, Cell Cycle, Homeostasis, Leukemia, Myeloid, Acute genetics, Leukemia, Myeloid, Acute metabolism
- Abstract
Acute myeloid leukemia (AML) remains a disease of gloomy prognosis despite intense efforts to understand its molecular foundations and to find efficient treatments. In search of new characteristic features of AML blasts, we first examined experimental conditions supporting the amplification of hematological CD34
+ progenitors ex vivo. Both AML blasts and healthy progenitors heavily depended on iron availability. However, even if known features, such as easier engagement in the cell cycle and amplification factor by healthy progenitors, were observed, multiplying progenitors in a fully defined medium is not readily obtained without modifying their cellular characteristics. As such, we measured selected molecular data including mRNA, proteins, and activities right after isolation. Leukemic blasts showed clear signs of metabolic and signaling shifts as already known, and we provide unprecedented data emphasizing disturbed cellular iron homeostasis in these blasts. The combined quantitative data relative to the latter pathway allowed us to stratify the studied patients in two sets with different iron status. This categorization is likely to impact the efficiency of several therapeutic strategies targeting cellular iron handling that may be applied to eradicate AML blasts.- Published
- 2023
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43. Variation in Lipid Species Profiles among Leukemic Cells Significantly Impacts Their Sensitivity to the Drug Targeting of Lipid Metabolism and the Prognosis of AML Patients.
- Author
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Lo Presti C, Yamaryo-Botté Y, Mondet J, Berthier S, Nutiu D, Botté C, and Mossuz P
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- Humans, Fatty Acids metabolism, Drug Delivery Systems, Lipid Metabolism, Leukemia, Myeloid, Acute drug therapy, Leukemia, Myeloid, Acute metabolism
- Abstract
Several studies have linked bad prognoses of acute myeloid leukemia (AML) to the ability of leukemic cells to reprogram their metabolism and, in particular, their lipid metabolism. In this context, we performed "in-depth" characterization of fatty acids (FAs) and lipid species in leukemic cell lines and in plasma from AML patients. We firstly showed that leukemic cell lines harbored significant differences in their lipid profiles at steady state, and that under nutrient stress, they developed common mechanisms of protection that led to variation in the same lipid species; this highlights that the remodeling of lipid species is a major and shared mechanism of adaptation to stress in leukemic cells. We also showed that sensitivity to etomoxir, which blocks fatty acid oxidation (FAO), was dependent on the initial lipid profile of cell lines, suggesting that only a particular "lipidic phenotype" is sensitive to the drug targeting of FAO. We then showed that the lipid profiles of plasma samples from AML patients were significantly correlated with the prognosis of patients. In particular, we highlighted the impact of phosphocholine and phosphatidyl-choline metabolism on patients' survival. In conclusion, our data show that balance between lipid species is a phenotypic marker of the diversity of leukemic cells that significantly influences their proliferation and resistance to stress, and thereby, the prognosis of AML patients.
- Published
- 2023
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44. Hypergraph Based Data Model for Complex Health Data Exploration and Its Implementation in PREDIMED Clinical Data Warehouse.
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Cancé C, Lenne C, Artemova S, Mossuz P, and Moreau-Gaudry A
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- Databases, Factual, Humans, Semantics, Data Warehousing, Search Engine
- Abstract
Within the PREDIMED Clinical Data Warehouse (CDW) of Grenoble Alpes University Hospital (CHUGA), we have developed a hypergraph based operational data model, aiming at empowering physicians to explore, visualize and qualitatively analyze interactively the complex and massive information of the patients treated in CHUGA. This model constitutes a central target structure, expressed in a dual form, both graphical and formal, which gathers the concepts and their semantic relations into a hypergraph whose implementation can easily be manipulated by medical experts. The implementation is based on a property graph database linked to an interactive graphical interface allowing to navigate through the data and to interact in real time with a search engine, visualization and analysis tools. This model and its agile implementation allow for easy structural changes inherent to the evolution of techniques and practices in the health field. This flexibility provides adaptability to the evolution of interoperability standards.
- Published
- 2022
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45. Diagnosis of acute promyelocytic leukemia based on routine biological parameters using machine learning.
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Cheli E, Chevalier S, Kosmider O, Eveillard M, Chapuis N, Plesa A, Heiblig M, Andre L, Pouget J, Mossuz P, Theisen O, Alcazer V, Gugenheim D, Autexier N, and Sujobert P
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- Humans, Machine Learning, Tretinoin, Leukemia, Promyelocytic, Acute diagnosis, Leukemia, Promyelocytic, Acute drug therapy, Leukemia, Promyelocytic, Acute genetics
- Published
- 2022
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46. Mitochondria in human acute myeloid leukemia cell lines have ultrastructural alterations linked to deregulation of their respiratory profiles.
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Mondet J, Lo Presti C, Chevalier S, Bertrand A, Tondeur S, Blanchet S, Mc Leer A, Pernet-Gallay K, and Mossuz P
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- HL-60 Cells, Humans, K562 Cells, Mutation, Leukemia, Myeloid, Acute genetics, Leukemia, Myeloid, Acute metabolism, Leukemia, Myeloid, Acute pathology, Mitochondria genetics, Mitochondria metabolism, Mitochondria ultrastructure, Neoplasm Proteins genetics, Neoplasm Proteins metabolism, Oxygen Consumption, Repressor Proteins genetics, Repressor Proteins metabolism
- Abstract
Mitochondria not only are essential for cell metabolism and energy supply but are also engaged in calcium homeostasis and reactive oxygen species generation and play a key role in apoptosis. As a consequence, functional mitochondrial disorders are involved in many human cancers including acute myeloid leukemia (AML). However, very few data are available on the deregulation of their number and/or shape in leukemic cells, despite the evident link between ultrastructure and function. In this context, we analyzed the ultrastructural mitochondrial parameters (number per cell, mitochondria area, number of cristae/mitochondria, cristal thickness) in five leukemia cell lines (HEL, HL60, K562, KG1, and OCI-AML3) together with the functional assay of their respiratory profile. First, we describe significant differences in basal respiration, maximal respiration, ATP production, and spare respiratory capacity between our cell lines, confirming the various respiratory profiles among leukemia subtypes. Second, we highlight that these variations are obviously associated with significant interleukemia heterogeneity of the number and/or shape of mitochondria. For instance, KG1, characterized by the smallest number of mitochondria together with reduced cristal diameter, had a particularly deficient respiratory profile. In comparison, the HEL and K562 cell lines, both with high respiratory profiles, harbored the largest number of mitochondria/cells with high cristal diameters. Moreover, we report that K562, carrying the ASXL1 mutation, presents significant mitochondria-endoplasmic reticulum deficiency reflected by decreases in the numbers of matrix granules and mitochondria-associated endoplasmic reticulum membrane (MAM) and mitochondrial-derived vesicle (MDV) precursors, which are implicated in the regulatory pathways of cell mortality via the processes of mitophagy and calcium homeostasis. Contrarily, HL60 carried high levels of matrix granules and MAMs and had a higher sensitivity to drugs targeting mitochondria (rotenone/antimycin). We confirm the implication of ASXL1 mutation in this mitochondria dysregulation through the study of transcript expression (from 415 patients with public data) involved in three mitochondrial pathways: (1) endoplasmic reticulum-mitochondria contacts (MAMs), (2) matrix granule homeostasis, and (3) MDV precursor production. Our study offers new and original data on mitochondria structural alterations linked to deregulation of respiration profiles in AMLs and some genetic characteristics, suggesting that modifications of mitochondrial shape and/or number in leukemic cells participate in chemoresistance and could be a targeted mechanism to regulate their proliferative potential., Competing Interests: Conflict of interest disclosure The authors declare that they have no competing interests., (Copyright © 2021 ISEH -- Society for Hematology and Stem Cells. Published by Elsevier Inc. All rights reserved.)
- Published
- 2021
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47. Pathogenic Roles of S100A8 and S100A9 Proteins in Acute Myeloid and Lymphoid Leukemia: Clinical and Therapeutic Impacts.
- Author
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Mondet J, Chevalier S, and Mossuz P
- Subjects
- Animals, Calgranulin A antagonists & inhibitors, Calgranulin B chemistry, Humans, Leukemia, Myeloid, Acute drug therapy, Leukemia, Myeloid, Acute immunology, Leukemia, Myeloid, Acute metabolism, Signal Transduction, Antineoplastic Agents pharmacology, Calgranulin A metabolism, Calgranulin B metabolism, Leukemia, Myeloid, Acute pathology, Molecular Targeted Therapy
- Abstract
Deregulations of the expression of the S100A8 and S100A9 genes and/or proteins, as well as changes in their plasma levels or their levels of secretion in the bone marrow microenvironment, are frequently observed in acute myeloblastic leukemias (AML) and acute lymphoblastic leukemias (ALL). These deregulations impact the prognosis of patients through various mechanisms of cellular or extracellular regulation of the viability of leukemic cells. In particular, S100A8 and S100A9 in monomeric, homodimeric, or heterodimeric forms are able to modulate the survival and the sensitivity to chemotherapy of leukemic clones through their action on the regulation of intracellular calcium, on oxidative stress, on the activation of apoptosis, and thanks to their implications, on cell death regulation by autophagy and pyroptosis. Moreover, biologic effects of S100A8/9 via both TLR4 and RAGE on hematopoietic stem cells contribute to the selection and expansion of leukemic clones by excretion of proinflammatory cytokines and/or immune regulation. Hence, the therapeutic targeting of S100A8 and S100A9 appears to be a promising way to improve treatment efficiency in acute leukemias.
- Published
- 2021
- Full Text
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48. Evaluation of the human type 3 adenoviral dodecahedron as a vector to target acute myeloid leukemia.
- Author
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Caulier B, Stofleth G, Hannani D, Guidetti M, Josserand V, Laurin D, Chroboczek J, Mossuz P, and Plantaz D
- Abstract
Intensive systemic chemotherapy is the gold standard of acute myeloid leukemia (AML) treatment and is associated with considerable off-target toxicities. Safer and targeted delivery systems are thus urgently needed. In this study, we evaluated a virus-like particle derived from the human type 3 adenovirus, called the adenoviral dodecahedron (Dd) to target AML cells. The vectorization of leukemic cells was proved very effective at nanomolar concentrations in a time- and dose-dependent manner, without vector toxicity. The internalization involved clathrin-mediated energy-dependent endocytosis and strongly correlated with the expression of α
V β3 integrin. The treatment of healthy donor peripheral blood mononuclear cells showed a preferential targeting of monocytes compared to lymphocytes and granulocytes. Similarly, monocytes but also AML blasts were the best-vectorized populations in patients while acute lymphoid leukemia blasts were less efficiently targeted. Importantly, AML leukemic stem cells (LSCs) could be addressed. Finally, Dd reached peripheral monocytes and bone marrow hematopoietic stem and progenitor cells following intravenous injection in mice, without excessive spreading in other organs. These findings reveal Dd as a promising myeloid vector especially for therapeutic purposes in AML blasts, LSCs, and progenitor cells., Competing Interests: The authors declare no competing interests., (© 2020 The Authors.)- Published
- 2020
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49. Cohort Creation and Visualization Using Graph Model in the PREDIMED Health Data Warehouse.
- Author
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Cancé C, Madiot PE, Lenne C, Artemova S, Cohard B, Bodin M, Caporossi A, Blatier JF, Fauconnier J, Olive F, Pagonis D, Le Magny D, Bosson JL, Charriere K, Paturel I, Lavaire B, Schummer G, Eterno J, Ravey JN, Bricault I, Ferretti G, Chanoine S, Bedouch P, Barbier E, Thevenon J, Mossuz P, and Moreau-Gaudry A
- Subjects
- Cohort Studies, Databases, Factual, Delivery of Health Care, France, Humans, Data Warehousing
- Abstract
Grenoble Alpes University Hospital (CHUGA) is currently deploying a health data warehouse called PREDIMED [1], a platform designed to integrate and analyze for research, education and institutional management the data of patients treated at CHUGA. PREDIMED contains healthcare data, administrative data and, potentially, data from external databases. PREDIMED is hosted by the CHUGA Information Systems Department and benefits from its strict security rules. CHUGA's institutional project PREDIMED aims to collaborate with similar projects in France and worldwide. In this paper, we present how the data model defined to implement PREDIMED at CHUGA is useful for medical experts to interactively build a cohort of patients and to visualize this cohort.
- Published
- 2020
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50. Increased S100A8 expression in bone marrow plasma by monocytic cells from acute myeloid leukemia patients.
- Author
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Mondet J, Laurin D, Lo Presti C, Jacob MC, Meunier M, Giraudon E, Lefebvre C, Berthier S, Leer AM, Park S, and Mossuz P
- Subjects
- Bone Marrow pathology, Humans, Monocytes pathology, Prognosis, Biomarkers, Tumor blood, Bone Marrow metabolism, Calgranulin A blood, Leukemia, Myeloid, Acute blood, Leukemia, Myeloid, Acute pathology, Monocytes metabolism
- Published
- 2020
- Full Text
- View/download PDF
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