1. IFNγ inhibits Th17 differentiation and function via Tbet-dependent and Tbet-independent mechanisms.
- Author
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Yeh, Wen-I, McWilliams, Ian L., and Harrington, Laurie E.
- Subjects
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INTERLEUKIN-17 , *T helper cells , *GENETIC transcription , *CELL differentiation , *CD4 antigen , *IMMUNOLOGICAL aspects of encephalomyelitis , *ENZYME inhibitors - Abstract
Abstract: The transcription factor Tbet is critical for the differentiation of Th1 CD4 T cells and is associated with the induction of multiple autoimmune diseases, including experimental autoimmune encephalomyelitis (EAE). Herein, we demonstrate that Tbet suppresses IL-17A and Th17 differentiation both in vitro and in vivo in a cell-intrinsic manner, and that in fact, Tbet is not necessary for EAE induction. Moreover, we find that IFNγ inhibits the production of IL-17A and IL-17F in a STAT1-dependent, Tbet-independent manner. These findings illustrate multiple mechanisms utilized by developing Th1 cells to silence the Th17 program. [Copyright &y& Elsevier]
- Published
- 2014
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