期刊
CELL REPORTS
卷 16, 期 4, 页码 1082-1095出版社
CELL PRESS
DOI: 10.1016/j.celrep.2016.06.063
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类别
资金
- NIH [U19-AI057234, U19-AI082715, U19-AI089987]
- Alliance for Lupus Research
- Baylor Health Care System
IL-12 is important for the differentiation of T follicular helper (Tfh) cells, as well as Th1 cells in humans. Still, how IL-12 signals regulate Tfh versus Th1 cell differentiation remains poorly characterized. Here we aimed to determine the molecular mechanisms that regulate the differentiation and the function of IL-12-stimulated human naive CD4(+) T cells. We found that T-bet promoted the expression of CXCR5 in human CD4(+) T cells. We provide evidence that T-bet does not strongly inhibit the Tfh cell differentiation program per se but diminishes the functions to provide help to B cells. This study also suggests that IRF4 plays an important role in driving the early differentiation of IL-12-stimulated CD4(+) T cells toward Tfh and away from Th1 by inhibiting the expression of Eomesodermin. Thus, the fate of IL-12-stimulated CD4+ T cells is determined through interplay of multiple transcription factors at early stages.
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