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Gafsi S, Tron C, Bauer F, Dacher J, Litzler P, Cribier A, Eltchaninoff H, Durand E. A Comparative monocentric prospective study of patients treated with TAVI Valve-in-Valve or with an aortic native valve at Rouen University Hospital: Immediate and long-term results. ARCHIVES OF CARDIOVASCULAR DISEASES SUPPLEMENTS 2019. [DOI: 10.1016/j.acvdsp.2019.02.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Avinee G, Eltchaninoff H, Tron C, Bettinger N, Bouhzam N, Gilard M, Verhoye J, Koning R, Lefevre T, Van Belle E, Leprince P, Iung B, Le Breton H, Durand E. Analysis of length of hospital stay after Transfemoral Transcatheter Aortic Valve Implantation: Results from the FRANCE TAVI (FRench Transcatheter Aortic Valve Implantation) Registry. ARCHIVES OF CARDIOVASCULAR DISEASES SUPPLEMENTS 2019. [DOI: 10.1016/j.acvdsp.2019.02.154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Harbaoui B, Eltchaninoff H, Rabilloud M, Souteyrand G, Durand E, Boussel L, Lefevre T, Lantelme P. Development of a dedicated TAVR risk score based on aorta calcification; 4 cities for assessing calcification prognostic impact: the C4CAPRI trial. ARCHIVES OF CARDIOVASCULAR DISEASES SUPPLEMENTS 2019. [DOI: 10.1016/j.acvdsp.2018.10.152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Harbaoui B, Durand E, Dupré M, Rabilloud M, Loic B, Souteyrand G, Courand P, Lefevre T, Eltchaninoff H, Lantelme P. Significance of the CAPRI score to predict heart failure recurrence after TAVI: The CAPRI-HF study. ARCHIVES OF CARDIOVASCULAR DISEASES SUPPLEMENTS 2019. [DOI: 10.1016/j.acvdsp.2018.10.151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Hémery T, Tron C, Avinée G, Bouhzam N, Bettinger N, Durand E, Eltchaninoff H. Does smaller sheath size allow transradial coronary angiography without heparin administration? ARCHIVES OF CARDIOVASCULAR DISEASES SUPPLEMENTS 2019. [DOI: 10.1016/j.acvdsp.2018.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Raitiere O, Fauvel C, Chopra H, Guignant P, Belkacem NS, Bouhzam N, Durand E, Tron C, Eltchaninoff H, Bauer F. Phenomapping to detect non-invasively patients with combined-postcapillary pulmonary hypertension. ARCHIVES OF CARDIOVASCULAR DISEASES SUPPLEMENTS 2019. [DOI: 10.1016/j.acvdsp.2018.10.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Avinee G, Tron C, Bettinger N, Bouhzam N, Gilard M, Verhoye J, Koning R, Lefevre T, Van Belle E, Leprince P, Iung B, Le Breton H, Eltchaninoff H, Durand E. Analysis of disparities in length of hospital stay after transfemoral transcatheter aortic valve implantation: Results from the FRANCE TAVI (French Transcatheter Aortic Valve Implantation) Registry. ARCHIVES OF CARDIOVASCULAR DISEASES SUPPLEMENTS 2019. [DOI: 10.1016/j.acvdsp.2018.10.138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Brosseau C, Durand M, Colas L, Durand E, Foureau A, Cheminant MA, Bouchaud G, Castan L, Klein M, Magnan A, Brouard S. CD9 + Regulatory B Cells Induce T Cell Apoptosis via IL-10 and Are Reduced in Severe Asthmatic Patients. Front Immunol 2018; 9:3034. [PMID: 30622536 PMCID: PMC6308143 DOI: 10.3389/fimmu.2018.03034] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 12/07/2018] [Indexed: 12/28/2022] Open
Abstract
CD9 was recently identified as a marker of murine IL-10-competent regulatory B cells. Functional impairments or defects in CD9+ IL-10-secreting regulatory B cells are associated with enhanced asthma-like inflammation and airway hyperresponsiveness. In mouse models, all asthma-related features can be abrogated by CD9+ B cell adoptive transfer. We aimed herein to decipher the profiles, features, and molecular mechanisms of the regulatory properties of CD9+ B cells in human and mouse. The profile of CD9+ B cells was analyzed using blood from severe asthmatic patients and normal and asthmatic mice by flow cytometry. The regulatory effects of mouse CD9+ B cells on effector T cell death, cell cycle arrest, apoptosis, and mitochondrial depolarization were determined using yellow dye, propidium iodide, Annexin V, and JC-1 staining. MAPK phosphorylation was analyzed by western blotting. Patients with severe asthma and asthmatic mice both harbored less CD19+CD9+ B cells, although these cells displayed no defect in their capacity to induce T cell apoptosis. Molecular mechanisms of regulation of CD9+ B cells characterized in mouse showed that they induced effector T cell cycle arrest in sub G0/G1, leading to apoptosis in an IL-10-dependent manner. This process occurred through MAPK phosphorylation and activation of both the intrinsic and extrinsic pathways. This study characterizes the molecular mechanisms underlying the regulation of CD9+ B cells to induce effector T cell apoptosis in mice and humans via IL-10 secretion. Defects in CD9+ B cells in blood from patients with severe asthma reveal new insights into the lack of regulation of inflammation in these patients.
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Avinee G, Durand E, Tron C, Bettinger N, Bouhzam N, Gilard M, Verhoye JP, Koning R, Lefevre T, Motreff P, Van Belle E, Leprince P, Iung B, Le Breton H, Eltchaninoff H. 230Analysis of disparities in length of hospital stay after transfemoral transcatheter aortic valve implantation: results from the FRANCE TAVI (FRench Transcatheter Aortic Valve Implantation) Registry. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Guignant P, Raitiere O, Artaud Macari E, Viacroze C, Dominique S, Schleifer D, Fauvel C, Si Belkacem N, Bouhzam N, Tron C, Durand E, Eltchaninoff H, Bauer F. P250Phenomapping for re-classification of patients with pulmonary hypertension at high risk. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Sokoloff A, Durand E, Urena-Alcazar M, Chevalier B, Chassaing S, Didier R, Litzler PY, Himbert D, Hovasse T, Bar O, Iung B, Blanchard D, Gilard M, Lefevre T, Eltchaninoff H. 3071Assessment of long-term structural deterioration of transcatheter aortic bioprosthetic valves using standardized new european definitions, a multicenter study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.3071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Raitiere O, Fauvel C, Chopra H, Guignant P, Si Belkacem N, Bouhzam N, Durand E, Tron C, Eltchaninoff H, Bauer F. 3014Phenomapping to detect non-invasively patients with combined postcapillary pulmonary hypertension. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.3014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Durand E, Berroir P, Ansaldo A. Sensorimotor strategies for the improvement of naming abilities in aphasia: Neural and behavioural correlates of personalized observation, execution, and mental imagery therapy (POEM). Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Le Couteulx S, Caudron J, Dubourg B, Cauchois G, Dupré M, Michelin P, Durand E, Eltchaninoff H, Dacher JN. Multidetector computed tomography sizing of aortic annulus prior to transcatheter aortic valve replacement (TAVR): Variability and impact of observer experience. Diagn Interv Imaging 2018; 99:279-289. [DOI: 10.1016/j.diii.2017.12.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 12/07/2017] [Accepted: 12/09/2017] [Indexed: 02/06/2023]
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Hémery T, Tron C, Avinée G, Raitière O, Bouhzam N, Bettinger N, Durand E, Eltchaninoff H. Does smaller sheath size allow transradial coronary angiography without heparin administration? ARCHIVES OF CARDIOVASCULAR DISEASES SUPPLEMENTS 2018. [DOI: 10.1016/j.acvdsp.2018.02.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Brosseau C, Durand M, Durand E, Foureau A, Danger R, Magnan A, Brouard S. Circulating CD9 + B Cells: Biomarker of Long-term BOS-free Survival After Lung Transplantation. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.1156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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Sokoloff A, Durand E, Avinée G, Tron C, Bettinger N, Bouhzam N, Litzler P, Dacher J, Bauer F, Eltchaninoff H. Assessment of long-term durability of transcatheter aortic valves, a French multicenter retrospective study. ARCHIVES OF CARDIOVASCULAR DISEASES SUPPLEMENTS 2018. [DOI: 10.1016/j.acvdsp.2018.02.096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Durand M, Lacoste P, Danger R, Jacquemont L, Brosseau C, Durand E, Tilly G, Loy J, Foureau A, Royer PJ, Tissot A, Roux A, Reynaud-Gaubert M, Kessler R, Mussot S, Dromer C, Brugière O, Mornex JF, Guillemain R, Claustre J, Degauque N, Magnan A, Brouard S. High circulating CD4 +CD25 hiFOXP3 + T-cell sub-population early after lung transplantation is associated with development of bronchiolitis obliterans syndrome. J Heart Lung Transplant 2018; 37:770-781. [PMID: 29571601 DOI: 10.1016/j.healun.2018.01.1306] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 12/07/2017] [Accepted: 01/24/2018] [Indexed: 10/17/2022] Open
Abstract
BACKGROUND Chronic bronchiolitis obliterans syndrome (BOS) remains a major limitation for long-term survival after lung transplantation. The immune mechanisms involved and predictive biomarkers have yet to be identified. The purpose of this study was to determine whether peripheral blood T-lymphocyte profile could predict BOS in lung transplant recipients. METHODS An in-depth profiling of CD4+ and CD8+ T cells was prospectively performed on blood cells from stable (STA) and BOS patients with a longitudinal follow-up. Samples were analyzed at 1 and 6 months after transplantation, at the time of BOS diagnosis, and at an intermediate time-point at 6 to 12 months before BOS diagnosis. RESULTS Although no significant difference was found for T-cell compartments at BOS diagnosis or several months beforehand, we identified an increase in the CD4+CD25hiFoxP3+ T-cell sub-population in BOS patients at 1 and 6 months after transplantation (3.39 ± 0.40% vs 1.67 ± 0.22% in STA, p < 0.001). A CD4+CD25hiFoxP3+ T-cell threshold of 2.4% discriminated BOS and stable patients at 1 month post-transplantation. This was validated on a second set of patients at 6 months post-transplantation. Patients with a proportion of CD4+CD25hiFoxP3+ T cells up to 2.4% in the 6 months after transplantation had a 2-fold higher risk of developing BOS. CONCLUSIONS This study is the first to report an increased proportion of circulating CD4+CD25hiFoxP3+ T cells early post-transplantation in lung recipients who proceed to develop BOS within 3 years, which supports its use as a BOS predictive biomarker.
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Durand M, Dubois F, Dejou C, Durand E, Danger R, Chesneau M, Brosseau C, Guerif P, Soulillou JP, Degauque N, Eliaou JF, Giral M, Bonnefoy N, Brouard S. Increased degradation of ATP is driven by memory regulatory T cells in kidney transplantation tolerance. Kidney Int 2018; 93:1154-1164. [PMID: 29455908 DOI: 10.1016/j.kint.2017.12.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Revised: 11/29/2017] [Accepted: 12/13/2017] [Indexed: 12/20/2022]
Abstract
Regulatory T cells were recently proposed as the central actor in operational tolerance after renal transplantation. Tolerant patients harbor increased FoxP3hi memory Treg frequency and increased demethylation in the Foxp3 Treg-specific demethylated region when compared to stable kidney recipients and exhibit greater memory Treg suppressive capacities and higher expression of the ectonucleotidase CD39. However, in this particular and unique situation the mechanisms of action of Tregs were not identified. Thus, we analyzed the ability of memory Tregs to degrade extracellular ATP in tolerant patients, healthy volunteers, and patients with stable graft function under immunosuppression and determined the role of immunosuppressive drugs on this process. The conserved proportion of memory Tregs leads to the establishment of a pro-tolerogenic balance in operationally tolerant patients. Memory Tregs in tolerant patients display normal capacity to degrade extracellular ATP/ADP. In contrast, memory Tregs from patients with stable graft function do not have this ability. Finally, in vitro, immunosuppressive drugs may favor the lower proportion of memory Tregs in stable patients, but they have no effect on CD39-dependent ATP degradation and do not explain memory Treg lack of extracellular ATP/ADP degradation ability. Thus, intrinsic active regulatory mechanisms may act long after immunosuppressive drug arrest in operationally tolerant patients and may contribute to kidney allograft tolerance via the maintenance of CD39 Treg function.
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Danger R, Royer PJ, Reboulleau D, Durand E, Loy J, Tissot A, Lacoste P, Roux A, Reynaud-Gaubert M, Gomez C, Kessler R, Mussot S, Dromer C, Brugière O, Mornex JF, Guillemain R, Dahan M, Knoop C, Botturi K, Foureau A, Pison C, Koutsokera A, Nicod LP, Brouard S, Magnan A. Blood Gene Expression Predicts Bronchiolitis Obliterans Syndrome. Front Immunol 2018; 8:1841. [PMID: 29375549 PMCID: PMC5768645 DOI: 10.3389/fimmu.2017.01841] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 12/05/2017] [Indexed: 12/14/2022] Open
Abstract
Bronchiolitis obliterans syndrome (BOS), the main manifestation of chronic lung allograft dysfunction, leads to poor long-term survival after lung transplantation. Identifying predictors of BOS is essential to prevent the progression of dysfunction before irreversible damage occurs. By using a large set of 107 samples from lung recipients, we performed microarray gene expression profiling of whole blood to identify early biomarkers of BOS, including samples from 49 patients with stable function for at least 3 years, 32 samples collected at least 6 months before BOS diagnosis (prediction group), and 26 samples at or after BOS diagnosis (diagnosis group). An independent set from 25 lung recipients was used for validation by quantitative PCR (13 stables, 11 in the prediction group, and 8 in the diagnosis group). We identified 50 transcripts differentially expressed between stable and BOS recipients. Three genes, namely POU class 2 associating factor 1 (POU2AF1), T-cell leukemia/lymphoma protein 1A (TCL1A), and B cell lymphocyte kinase, were validated as predictive biomarkers of BOS more than 6 months before diagnosis, with areas under the curve of 0.83, 0.77, and 0.78 respectively. These genes allow stratification based on BOS risk (log-rank test p < 0.01) and are not associated with time posttransplantation. This is the first published large-scale gene expression analysis of blood after lung transplantation. The three-gene blood signature could provide clinicians with new tools to improve follow-up and adapt treatment of patients likely to develop BOS.
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Sokoloff A, Durand E, Avinee G, Tron C, Bettinger N, Bouhzam N, Dacher J, Bauer F, Litzler P, Cribier A, Eltchaninoff H. Long-term assessment of durability of transcatheter aortic valves. Experience from the pioneer center. ARCHIVES OF CARDIOVASCULAR DISEASES SUPPLEMENTS 2018. [DOI: 10.1016/j.acvdsp.2017.11.281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Durand E, Avinee G, Tron C, Bettinger N, Bouhzam N, Dacher J, Bauer F, Liztler P, Cribier A, Eltchaninoff H. P754Transcatheter aortic valve implantation in nonagenarians: long-term cohort analysis from a pioneered center. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx501.p754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Durand E, Avinee G, Tron C, Bettinger N, Bouhzam N, Dacher J, Bauer F, Litzler P, Cribier A, Eltchaninoff H. P460Up to 10-years long-term durability after transcatheter aortic valve implantation using balloon-expandable transcatheter valves: experience from the pioneer center. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx501.p460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Raitiere O, Chopra H, Mirolo A, Da Silva A, Bouhzam N, Tron C, Durand E, Eltchaninoff H, Bauer F. P2589Non invasive discrimination between pre and post capillary pulmonary hypertension: comparison of three published scores. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Durand E, Avinee G, Tron C, Bettinger N, Bouhzam N, Dacher J, Bauer F, Litzler P, Cribier A, Eltchaninoff H. 3940Thirty-day and long-term outcomes after transcatheter aortic valve implantation from first-in-man to nowadays: 15 years experience of a pioneered center. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.3940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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