First Author | Yu Q | Year | 2011 |
Journal | J Immunol | Volume | 186 |
Issue | 7 | Pages | 3946-52 |
PubMed ID | 21339363 | Mgi Jnum | J:170846 |
Mgi Id | MGI:4947475 | Doi | 10.4049/jimmunol.1003497 |
Citation | Yu Q, et al. (2011) T Cell Factor-1 Negatively Regulates Expression of IL-17 Family of Cytokines and Protects Mice from Experimental Autoimmune Encephalomyelitis. J Immunol 186(7):3946-52 |
abstractText | Activated CD4 T cells are associated with protective immunity and autoimmunity. The manner in which the inflammatory potential of T cells and resultant autoimmunity is restrained is poorly understood. In this article, we demonstrate that T cell factor-1 (TCF1) negatively regulates the expression of IL-17 and related cytokines in activated CD4 T cells. We show that TCF1 does not affect cytokine signals and expression of transcription factors that have been shown to regulate Th17 differentiation. Instead, TCF1 regulates IL-17 expression, in part, by binding to the regulatory regions of the Il17 gene. Moreover, TCF1-deficient Th17 CD4 T cells express higher levels of IL-7Ralpha, which potentially promotes their survival and expansion in vivo. Accordingly, TCF1-deficient mice are hyperresponsive to experimental autoimmune encephalomyelitis. Thus, TCF1, a constitutively expressed T cell-specific transcription factor, is a critical negative regulator of the inflammatory potential of TCR-activated T cells and autoimmunity. |