Regulatory T cells control autoimmunity following syngeneic bone marrow transplantation.

Abstract : Sublethally irradiated, immunodeficient, C57BL/6 RAG-2 gene-deleted recipient mice reconstituted with T cell-depleted bone marrow (BM) grafts frequently developed diarrhea, lost weight and showed signs of autoimmunity, dying between 4 and 7 weeks after reconstitution. Mice died despite evidence of efficient donor-derived hemato-lymphoid reconstitution, and disease was associated with the presence of IgG anti-nuclear antibodies. Autoimmunity was initiated by T cells, but could be prevented by transfer of naturally arising regulatory T cells. In contrast, lethally irradiated, BM-reconstituted immunocompetent, C57BL/6 mice survived without signs of autoimmunity. Survival of immunocompetent mice was shown to be due to the presence of residual, extra-thymically located, radio-resistant, functional regulatory T cells. The importance of regulatory T cells was further shown by the reduced survival of immunocompetent BM recipients whose CD25+ T cells had been depleted prior to bone marrow transplantation. The implications of these results in the context of syngeneic graft-versus-host disease following BM transplantation are discussed.
Type de document :
Article dans une revue
European Journal of Immunology, Wiley-VCH Verlag, 2006, 36 (9), pp.2324-35. 〈10.1002/eji.200636434〉
Liste complète des métadonnées

http://www.hal.inserm.fr/inserm-00473511
Contributeur : Philippe Saas <>
Soumis le : jeudi 15 avril 2010 - 14:21:35
Dernière modification le : jeudi 15 février 2018 - 08:48:14

Lien texte intégral

Identifiants

Collections

Citation

Angèle Bénard, Rhodri Ceredig, Antonius Rolink. Regulatory T cells control autoimmunity following syngeneic bone marrow transplantation.. European Journal of Immunology, Wiley-VCH Verlag, 2006, 36 (9), pp.2324-35. 〈10.1002/eji.200636434〉. 〈inserm-00473511〉

Partager

Métriques

Consultations de la notice

42