Title |
The Transcription Factor c-Maf Promotes the Differentiation of Follicular Helper T Cells
|
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Published in |
Frontiers in immunology, April 2017
|
DOI | 10.3389/fimmu.2017.00480 |
Pubmed ID | |
Authors |
Fabienne Andris, Sébastien Denanglaire, Maelle Anciaux, Mélanie Hercor, Hind Hussein, Oberdan Leo |
Abstract |
Follicular helper T cells (Tfh) have been identified as the primary cell subpopulation regulating B cell responses in germinal centers, thus supporting high-affinity antibody production. Among the transcription factors orchestrating Tfh cell differentiation and function, the role played by the proto-oncogene c-Maf remains poorly characterized. We report herein that selective loss of c-Maf expression in the T cell compartment results in defective development of Tfh cells in response to both antigen/adjuvant vaccinations and commensal intestinal bacteria. Accordingly, c-Maf expression in T cells was essential for the development and high-affinity antibody secretion in vaccinated animals. c-Maf was expressed early, concomitantly to BCL6, in Tfh cell precursors and found to regulate Tfh fate in a cell-autonomous fashion. Altogether, our findings reveal a novel, non-redundant, function for c-Maf in the differentiation of Tfh cells and the regulation of humoral immune responses to T-cell-dependent antigens. |
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