Regulation of Innate Lymphoid Cells by Aryl Hydrocarbon Receptor.

Regulation of Innate Lymphoid Cells by Aryl Hydrocarbon Receptor.
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DOI:
10.3389/fimmu.2017.01909
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发表时间:
2017
影响因子:
7.3
通讯作者:
Zhou L
Zhou L
中科院分区:
医学2区
文献类型:
--
作者:
Li S;Bostick JW;Zhou L

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先天性淋巴样细胞(ILC)与它们的适应性T辅助细胞对应物具有惊人的相似性,代表了一个表达签名转录因子的新兴细胞类型家族,包括T-bet+ Eomes+自然杀伤细胞,T-bet+ Eomes− 1组ILC,GATA 3 + 2组ILC,RORγt+3组ILC和新发现的Id 3+调节ILC。ILC大量存在于宿主的屏障组织(例如,肺、肠和皮肤)在宿主-环境相互作用的界面处。人们已经进行了积极的研究,以阐明ILC的发展和功能的分子机制。芳烃受体(aryl hydrocarbon receptor,Ahr)是一种配体依赖性转录因子,介导外源性环境毒素和内源性微生物代谢产物的作用。本文就Ahr在ILC中的作用作一综述。我们专注于Ahr介导的ILC和其他免疫/非免疫细胞在宿主组织,特别是在肠道之间的串扰。我们讨论了Ahr表达和活性在免疫和炎症中调节ILC的分子机制,以及Ahr与ILC发育和功能中的其他途径/转录因子之间的相互作用及其在疾病中的意义。
With striking similarity to their adaptive T helper cell counterparts, innate lymphoid cells (ILCs) represent an emerging family of cell types that express signature transcription factors, including T-bet+ Eomes+ natural killer cells, T-bet+ Eomes− group 1 ILCs, GATA3+ group 2 ILCs, RORγt+ group 3 ILCs, and newly identified Id3+ regulatory ILC. ILCs are abundantly present in barrier tissues of the host (e.g., the lung, gut, and skin) at the interface of host–environment interactions. Active research has been conducted to elucidate molecular mechanisms underlying the development and function of ILCs. The aryl hydrocarbon receptor (Ahr) is a ligand-dependent transcription factor, best known to mediate the effects of xenobiotic environmental toxins and endogenous microbial and dietary metabolites. Here, we review recent progresses regarding Ahr function in ILCs. We focus on the Ahr-mediated cross talk between ILCs and other immune/non-immune cells in host tissues especially in the gut. We discuss the molecular mechanisms of the action of Ahr expression and activity in regulation of ILCs in immunity and inflammation, and the interaction between Ahr and other pathways/transcription factors in ILC development and function with their implication in disease.
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