Academic Journal
Generation of catalytic antibodies is an intrinsic property of an individual's immune system: a study on a large cohort of renal transplant patients.
| العنوان: | Generation of catalytic antibodies is an intrinsic property of an individual's immune system: a study on a large cohort of renal transplant patients. |
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| المؤلفون: | Mahendra, A., Peyron, I., Thaunat, O., Dollinger, C., Gilardin, L., Sharma, M., Wootla, B., Rao, D.N., Padiolleau-Lefèvre, S., Boquet, D., More, A., Varadarajan, N., Kaveri, S.V., Legendre, C, Lacroix-Desmazes, S. |
| المساهمون: | Centre de Recherche des Cordeliers (CRC), Université Paris Diderot - Paris 7 (UPD7)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Génie Enzymatique et Cellulaire (GEC), Université de Technologie de Compiègne (UTC)-Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Etudes et de Recherches en Immunoanalyses (LERI), Service de Pharmacologie et Immunoanalyse (SPI), Médicaments et Technologies pour la Santé (MTS), Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Médicaments et Technologies pour la Santé (MTS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Service de néphrologie adultes 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) |
| المصدر: | ISSN: 0022-1767. |
| بيانات النشر: | HAL CCSD Williams & Wilkins, c1950-. Latest Publisher : Bethesda, MD : American Association of Immunologists |
| سنة النشر: | 2016 |
| المجموعة: | Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
| مصطلحات موضوعية: | [SDV]Life Sciences [q-bio] |
| الوصف: | International audience ; Renal transplant is the treatment of choice for patients with terminal end-stage renal disease. We have previously identified low levels of catalytic IgG as a potential prognosis marker for chronic allograft rejection. The origin and physiopathological relevance of catalytic Abs is not well understood, owing to the fact that catalytic Abs have been studied in relatively small cohorts of patients with rare diseases and/or without systematic follow-up. In the current study, we have followed the evolution of the levels of catalytic IgG in a large cohort of renal transplant patients over a 2-y period. Our results demonstrate that, prior to transplant, patients with renal failure present with heterogeneous levels of IgG hydrolyzing the generic proline-phenylalanine-arginine-methylcoumarinamide (PFR-MCA) substrate. PFR-MCA hydrolysis was greater for patients’ IgG than for a therapeutic preparation of pooled IgG from healthy donors. Renal transplant was marked by a drastic decrease in levels of catalytic IgG over 3 mo followed by a steady increase during the next 21 mo. Patients who displayed high levels of catalytic IgG pretransplant recovered high levels of catalytic Abs 2 y posttransplant. Interestingly, IgG-mediated hydrolysis of a model protein substrate, procoagulant factor VIII, did not correlate with that of PFR-MCA prior transplantation, whereas it did 12 mo posttransplant. Taken together, our results suggest that the level of circulating catalytic IgG under pathological conditions is an intrinsic property of each individual’s immune system and that recovery of pretransplant levels of catalytic IgG is accompanied by changes in the repertoire of target Ags. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | hal-01501903; https://hal.archives-ouvertes.fr/hal-01501903 |
| الاتاحة: | https://hal.archives-ouvertes.fr/hal-01501903 |
| رقم الانضمام: | edsbas.B6BD167B |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |