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转化生长因子β(TGFβ)与视黄酸在免疫调节中相互作用。

TGFbeta and retinoic acid intersect in immune-regulation.

作者信息

Mucida Daniel, Cheroutre Hilde

机构信息

La Jolla Institute for Allergy and Immunology, La Jolla, California 92037, USA.

出版信息

Cell Adh Migr. 2007 Jul-Sep;1(3):142-4. doi: 10.4161/cam.1.3.5062. Epub 2007 Jul 20.

Abstract

Transforming growth factor (TGFbeta) prevents T(H)1 and T(H)2 differentiation and converts naïve CD4 cells into Foxp3-expressing T regulatory (Treg) cell.(1,2) In sharp contrast, in the presence of pro-inflammatory cytokines, including IL-6, TGFbeta not only inhibits Foxp3 expression but also promotes the differentiation of pro-inflammatory IL17-producing CD4 effector T (T(H)17) cells.(3-5) This reciprocal TGFbeta-dependent differentiation imposes a critical dilemma between pro- and anti-inflammatory immunity and suggests that a sensitive regulatory mechanism must exist to control TGFbeta-driven T(H)17 effector and Treg differentiation. A vitamin A metabolite, retinoic acid (RA), was recently identified as a key modulator of TGFbeta-driven- immune deviation capable of suppressing T(H)17 differentiation while promoting Foxp3(+)Treg generation.(6-10).

摘要

转化生长因子(TGFβ)可阻止辅助性T细胞1(TH1)和辅助性T细胞2(TH2)分化,并将初始CD4细胞转化为表达叉头框蛋白3(Foxp3)的调节性T(Treg)细胞。(1,2)与之形成鲜明对比的是,在包括白细胞介素6(IL-6)在内的促炎细胞因子存在的情况下,TGFβ不仅会抑制Foxp3表达,还会促进产生促炎白细胞介素17的CD4效应T(TH17)细胞的分化。(3-5)这种相互的依赖TGFβ的分化在促炎和抗炎免疫之间造成了一个关键困境,并表明必须存在一种敏感的调节机制来控制TGFβ驱动的TH17效应细胞和Treg分化。一种维生素A代谢产物,视黄酸(RA),最近被确定为TGFβ驱动的免疫偏向的关键调节因子,它能够抑制TH17分化,同时促进Foxp3(+)Treg的产生。(6-10)

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