STAT6-dependent and -independent mechanisms in Th2 polarization.

STAT6-dependent and -independent mechanisms in Th2 polarization.
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DOI:
10.1002/eji.201242433
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发表时间:
2012-11
影响因子:
5.4
通讯作者:
Horejs-Hoeck, Jutta
Horejs-Hoeck, Jutta
中科院分区:
医学3区
文献类型:
--
作者:
Maier, Elisabeth;Duschl, Albert;Horejs-Hoeck, Jutta

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Th2 细胞在指导针对蠕虫的免疫反应中发挥着关键作用。此外,Th2 细胞对于多种类型的过敏反应至关重要。尽管其他类型 Th 细胞分化的分子机制已广为人知,但 Th2 分化仍然是一个有争议的话题。 IL-4 及其下游转录因子信号转导子和转录激活子 (STAT)6 是众所周知的 Th2 分化的关键介质。 Th2 细胞本身是 IL-4 最有效的来源这一事实表明,存在促进 Th2 分化启动的其他机制。本文概述了 Th2 极化过程中涉及的 STAT6 依赖性和非依赖性机制,包括 Notch、mTORC2、IL-2/STAT5 和 Wnt。此外,我们强调 STAT6 的作用不仅是作为促进 Th2 发育的转录激活剂,而且还可以微调参与 Th2 极化启动的替代信号通路。
Th2 cells play a key role in directing immune responses against helminths. Additionally, Th2 cells are crucial for many types of allergic reactions. Whereas the molecular mechanisms underlying the differentiation of other types of Th cells are well understood, Th2 differentiation is still a controversial topic. IL-4 and its downstream transcription factor signal transducer and activator of transcription (STAT)6 are well-known key mediators in Th2 differentiation. The fact that Th2 cells themselves are the most potent source of IL-4 suggests that additional mechanisms promoting the initiation of Th2 differentiation exist. This article gives an overview on STAT6-dependent and -independent mechanisms involved in the process of Th2 polarization, including Notch, mTORC2, IL-2/STAT5, and Wnt. Furthermore, we emphasize the role of STAT6 not only as a transcriptional activator promoting Th2 development, but also in fine-tuning alternative signaling pathways which are involved in the initiation of Th2 polarization.
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