Induction of innate lymphoid cell-derived interleukin-22 by the transcription factor STAT3 mediates protection against intestinal infection.

Induction of innate lymphoid cell-derived interleukin-22 by the transcription factor STAT3 mediates protection against intestinal infection.
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DOI:
10.1016/j.immuni.2013.10.021
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发表时间:
2014-01-16
期刊:
影响因子:
32.4
通讯作者:
Fu, Yang-Xin
Fu, Yang-Xin
中科院分区:
医学1区
文献类型:
--
作者:
Guo, Xiaohuan;Qiu, Ju;Tu, Tony;Yang, Xuanming;Deng, Liufu;Anders, Robert A.;Zhou, Liang;Fu, Yang-Xin

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转录因子STAT3的抑制剂靶向依赖STAT3的肿瘤发生,但患者经常因未知机制而发生腹泻。本研究表明,STAT3缺乏增加了啮齿柠檬酸杆菌感染后的发病率和死亡率,减少了与转录因子RORγt相关的细胞因子IL-17和IL-22的分泌。细胞因子IL-22足以使stat3缺陷小鼠免于致死性感染。尽管在先天和适应性臂中IL-22的产生都需要STAT3,但在条件性基因缺陷小鼠中,我们观察到在rorγ - T +先天淋巴样细胞(ILC3s)中,而不是T细胞中,STAT3的表达是保护IL-22所必需的。然而,在辅助性T细胞中,rorγ - T的表达需要STAT3,而在ILC3s中则不需要。激活的STAT3可以直接结合到Il22位点。因此,利用STAT3抑制剂的癌症治疗通过直接抑制肠道IL-22来增加病原体介导的腹泻的风险。
Inhibitors of the transcription factor STAT3 target STAT3-dependent tumorigenesis but patients often develop diarrhea from unknown mechanisms. Here we showed that STAT3 deficiency increased morbidity and mortality after Citrobacter rodentium infection with decreased secretion of cytokines including IL-17 and IL-22 associated with the transcription factor RORγt. Administration of the cytokine IL-22 was sufficient to rescue STAT3-deficient mice from lethal infection. Although STAT3 was required for IL-22 production in both innate and adaptive arms, using conditional gene deficient mice we observed that STAT3 expression in RORγt+ innate lymphoid cells (ILC3s), but not T cells, was essential for the protection. However, STAT3 was required for RORγt expression in T helper cells, but not in ILC3s. Activated STAT3 could directly bind to the Il22 locus. Thus, cancer therapies that utilize STAT3 inhibitors increase the risk for pathogen-mediated diarrhea through direct suppression of IL-22 from gut ILCs.
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