期刊
IMMUNITY
卷 25, 期 3, 页码 455-471出版社
CELL PRESS
DOI: 10.1016/j.immuni.2006.07.011
关键词
-
类别
资金
- NIAMS NIH HHS [R01 AR060723] Funding Source: Medline
- NIDDK NIH HHS [R01DK51665] Funding Source: Medline
The role of transforming growth factor-beta (TGF-beta) in inhibiting T cell functions has been studied with dominant-negative TGF-beta receptor transgenic models; however, the full impact of TGF-beta signaling on T cells and the mechanisms by which TGF-beta signals remain poorly understood. Here we show that mice with T cell-specific deletion of TGF-beta receptor II developed lethal inflammation associated with T cell activation and differentiation. In addition, TGF-beta signaling positively regulated T cell development and homeostasis. Development of CD8(+) T cells and NKT cells, maintenance of peripheral Foxp3-expressing regulatory T cells, and survival of CD4(+) T cells all depended on TGF-beta signaling. Both T helper 1 (Th1) differentiation and survival of activated CD4(+) T cells required T-bet, the TGF-beta-regulated transcription factor, which controlled CD122 expression and IL-15 signaling in Th1 cells. This study reveals pleiotropic functions of TGF-beta signaling in T cells that may ensure a diverse and self-tolerant T cell repertoire in vivo.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据