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Nat Immunol. 2012 Jul 1;13(8):778-86. doi: 10.1038/ni.2362.

The transcription factor Sox4 is a downstream target of signaling by the cytokine TGF-β and suppresses T(H)2 differentiation.

Author information

1
Department of Immunology, Graduate School of Medicine, Chiba University, Chiba, Japan.

Abstract

Sox4 is a transcription factor that regulates various developmental processes. Here we show that Sox4 was induced by TGF-β and negatively regulated the transcription factor GATA-3, the master regulator of function of T helper type 2 (T(H)2) cells, by two distinct mechanisms. First, Sox4 bound directly to GATA-3, preventing its binding to GATA-3 consensus DNA sequences. Second, Sox4 bound to the promoter region of the gene encoding interleukin 5 (IL-5), a T(H)2 cytokine, and prevented binding of GATA-3 to this promoter. T(H)2 cell-driven airway inflammation was modulated by alterations in Sox4 expression. Thus, Sox4 acted as a downstream target of TGF-β to inhibit GATA-3 function, T(H)2 differentiation and T(H)2 cell-mediated inflammation.

PMID:
22751141
PMCID:
PMC3477402
DOI:
10.1038/ni.2362
[Indexed for MEDLINE]
Free PMC Article

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