Innate immune sensing by epithelial barriers.

Innate immune sensing by epithelial barriers.
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DOI:
10.1016/j.coi.2021.07.014
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发表时间:
2021-12
影响因子:
7
通讯作者:
Rauch I
Rauch I
中科院分区:
医学2区
文献类型:
--
作者:
Constant DA;Nice TJ;Rauch I

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屏障组织中的上皮细胞通过检测、限制和经常直接消除外来病原体来执行关键的免疫功能。上皮细胞中的膜结合和细胞质模式识别受体与多种配体结合,检测病原体成分和行为并刺激细胞自主免疫。除了直接作为病原体的第一反应者外,上皮细胞还检测共生和饮食来源的产物以促进体内平衡。最近的进展已经阐明了上皮细胞表达的分子传感器阵列,以及上皮细胞的反应如何连接以促进稳态平衡,同时允许消除病原体。这些新的研究强调上皮细胞是有效的先天免疫反应的中心。
Epithelial cells in barrier tissues perform a critical immune function by detecting, restricting, and often directly eliminating extrinsic pathogens. Membrane-bound and cytosolic pattern recognition receptors in epithelial cells bind to diverse ligands, detecting pathogen components and behaviors and stimulating cell-autonomous immunity. In addition to directly acting as first-responders to pathogens, epithelial cells detect commensal- and diet- derived products to promote homeostasis. Recent advances have clarified the array of molecular sensors expressed by epithelial cells, and how epithelial cells responses are wired to promote homeostatic balance while simultaneously allowing elimination of pathogens. These new studies emphatically position epithelial cells as central to an effective innate immune response.
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