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Characterization of c-Maf(+)Foxp3(−) Regulatory T Cells Induced by Repeated Stimulation of Antigen-Presenting B Cells

The role of B cells in the development of CD4(+) regulatory T cells has been emphasized recently. Our previous studies have demonstrated that the antigen-presenting splenic B cells converted naïve CD4(+)CD25(−) T cells into CD4(+)CD25(+)Foxp3(−) T cells without additional cytokines or chemicals with...

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Detalles Bibliográficos
Autores principales: Chien, Chien-Hui, Yu, Hui-Chieh, Chen, Szu-Ying, Chiang, Bor-Luen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5389357/
https://www.ncbi.nlm.nih.gov/pubmed/28402334
http://dx.doi.org/10.1038/srep46348
Descripción
Sumario:The role of B cells in the development of CD4(+) regulatory T cells has been emphasized recently. Our previous studies have demonstrated that the antigen-presenting splenic B cells converted naïve CD4(+)CD25(−) T cells into CD4(+)CD25(+)Foxp3(−) T cells without additional cytokines or chemicals with regulatory activity and that referred to as Treg-of-B cells. The present study further showed that Treg-of-B cells increased the IL-10-producing population, and the expression of c-Maf, inducible T-cell co-stimulator (ICOS) as well as cytotoxic T-lymphocyte-associated protein 4 (CTLA4) after repeated stimulation of B cells in a cell-cell contact-dependent manner. Long-term cultured Treg-of-B cells exerted IL-10 and CTLA4-mediated antigen-specific suppressive activity; moreover, the single antigen-specific Treg-of-B cells inhibited in a non-antigen-specific fashion. In conclusion, these results suggest that repeated stimulation of B cells induced IL-10-producing CD4(+)Foxp3(−) regulatory T cells in a contact-dependent manner and these Treg-of-B cells possess IL-10 and CTLA4-dependent suppressive function.