The ETS Family Transcription Factors Etv5 and PU.1 Function in Parallel To Promote Th9 Cell Development.

The ETS Family Transcription Factors Etv5 and PU.1 Function in Parallel To Promote Th9 Cell Development.
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DOI:
10.4049/jimmunol.1502383
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发表时间:
2016-09-15
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
通讯作者:
Kaplan MH
Kaplan MH
中科院分区:
其他
文献类型:
--
作者:
Koh B;Hufford MM;Pham D;Olson MR;Wu T;Jabeen R;Sun X;Kaplan MH

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CD4 T辅助细胞分泌il -9的Th9亚群在含有IL-4和TGFβ的环境下发育,促进过敏性疾病、自身免疫和对病原体的抵抗。我们之前发现在Th9的发育过程中需要ETS家族转录因子PU.1。在本报告中,我们证明ETS转录因子ETV5通过结合和募集组蛋白乙酰转移酶到不同于PU.1的IL-9位点,促进Th9细胞中IL-9的产生。在同时缺乏PU.1和ETV5的细胞中,IL-9的产生低于单独缺乏任何一种因子的细胞。体内T细胞中PU.1和ETV5的缺失对肺变应性炎症有不同的影响,表明这些因素是并行的。总之,这些数据确定了ETV5在Th9发育中的作用,并扩展了相关转录因子在分化过程中具有互补功能的范式。
The IL-9-secreting Th9 subset of CD4 T helper cells develop in response to an environment containing IL-4 and TGFβ, promoting allergic disease, autoimmunity, and resistance to pathogens. We previously identified a requirement for the ETS family transcription factor PU.1 in Th9 development. In this report we demonstrate that the ETS transcription factor ETV5 promotes IL-9 production in Th9 cells by binding and recruiting histone acetyltransferases to the Il9 locus at sites distinct from PU.1. In cells that are deficient in both PU.1 and ETV5 there is lower IL-9 production than in cells lacking either factor alone. In vivo loss of PU.1 and ETV5 in T cells results in distinct affects on allergic inflammation in the lung, suggesting that these factors function in parallel. Together, these data define a role for ETV5 in Th9 development and extend the paradigm of related transcription factors having complementary functions during differentiation.
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