CD4+ regulatory T cells control TH17 responses in a Stat3-dependent manner.
CD4+ regulatory T cells control TH17 responses in a Stat3-dependent manner.
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DOI:
10.1126/science.1172702
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发表时间:
2009-11-13
期刊:
影响因子:
--
通讯作者:
Rudensky AY
中科院分区:
文献类型:
--
作者:
Chaudhry A;Rudra D;Treuting P;Samstein RM;Liang Y;Kas A;Rudensky AY
Distinct classes of protective immunity are guided by activation of STAT transcription factor (TF) family members in response to environmental cues. CD4+ regulatory T cells (Tregs) suppress excessive immune responses, and their deficiency results in a lethal, multi-organ autoimmune syndrome characterized by T helper 1 (Th1) and T helper 2 (Th2) CD4+ T cell-dominated lesions. Here we show that pathogenic Th17 responses in mice are also restrained by Tregs. This suppression was lost upon Treg-specific ablation of Stat3, a TF critical for Th17 differentiation, and resulted in the development of a fatal intestinal inflammation. These findings suggest that Tregs adapt to their environment by engaging distinct effector response-specific suppression modalities upon activation of STAT proteins that direct the corresponding class of the immune response.
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