Bcl6 mediates the development of T follicular helper cells.
Bcl6 mediates the development of T follicular helper cells.
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DOI:
10.1126/science.1176676
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发表时间:
2009-08-21
期刊:
影响因子:
--
通讯作者:
Dong C
中科院分区:
文献类型:
--
作者:
Nurieva RI;Chung Y;Martinez GJ;Yang XO;Tanaka S;Matskevitch TD;Wang YH;Dong C
A fundamental function of CD4+ helper T (TH) cells is the regulation of B cell–mediated humoral immunity. Development of T follicular helper (TFH) cells that provide help to B cells is mediated by the cytokines interleukin-6 and interleukin-21 but is independent of TH1, TH2, and TH17 effector cell lineages. Here, we characterize the function of Bcl6, a transcription factor selectively expressed in TFH cells. Bcl6 expression is regulated by interleukin-6 and interleukin-21. Bcl6 overexpression induced TFH-related gene expression and inhibited other TH lineage cell differentiation in a DNA binding–dependent manner. Moreover, Bcl6 deficiency in T cells resulted in impaired TFH cell development and germinal center reactions, and altered production of other effector T cell subsets. Our data thus illustrate that Bcl6 is required for programming of TFH cell generation.
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