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首页> 外文期刊>Immunology: An Official Journal of the British Society for Immunology >Segmented filamentous bacteria‐induced immune responses: a balancing act between host protection and autoimmunity
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Segmented filamentous bacteria‐induced immune responses: a balancing act between host protection and autoimmunity

机译:分段丝状细菌诱导的免疫应答:宿主保护与自身免疫之间的平衡行为

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摘要

Summary Segmented filamentous bacteria ( SFB ) are Gram‐positive, spore‐forming, bacteria that primarily colonize the ileum of the small intestine. Upon direct adherence to intestinal epithelial cells, SFB actively stimulate innate and adaptive immune cell activation. The cardinal features of SFB ‐induced gut immunity – T helper type 17 (Th17) cell differentiation, IgA production and barrier protection – lead to the containment of SFB and further afford protection against invading pathogens. Th17 cells and interleukin‐17A, however, can also reach peripheral sites and exacerbate autoimmunity. In this review, we highlight salient characteristics of SFB –host interactions and detail the cellular and molecular immune mechanisms involved in coordinating these responses.
机译:摘要分段丝状细菌(SFB)是革兰氏阳性,孢子形成的细菌,主要是殖民的小肠的回肠。 直接遵守肠上皮细胞,SFB积极刺激先天性和适应性免疫细胞活化。 SFB诱导的肠道免疫 - T辅助助剂17(TH17)细胞分化,IGA生产和屏障保护的基本特征 - 导致SFB的遏制,进一步提供防止入侵病原体的保护。 然而,Th17细胞和白细胞介素-17a也可以到达外周位点并加剧自身免疫。 在本综述中,我们突出了SFB -HOST相互作用的突出特性,并详细介绍了协调这些反应的细胞和分子免疫机制。

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