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首页> 外文期刊>Molecular Aspects of Medicine: An Interdisciplinary Review Journal >Vitamin A and immune regulation: Role of retinoic acid in gut-associated dendritic cell education, immune protection and tolerance
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Vitamin A and immune regulation: Role of retinoic acid in gut-associated dendritic cell education, immune protection and tolerance

机译:维生素A和免疫调节:视黄酸在肠道相关树突状细胞教育,免疫保护和耐受中的作用

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摘要

The vitamin A (VA) metabolite all-trans retinoic acid (RA) plays a key role in mucosal immune responses. RA is produced by gut-associated dendritic cells (DC) and is required for generating gut-tropic lymphocytes and IgA-antibody-secreting cells (IgA-ASC). Moreover, RA modulates Foxp3 + regulatory T cell (T REG) and Th17 effector T cell differentiation. Thus, although RA could be used as an effective "mucosal adjuvant" in vaccines, it also appears to be required for establishing intestinal immune tolerance. Here we discuss the roles proposed for RA in shaping intestinal immune responses and tolerance at the gut mucosal interface. We also focus on recent data exploring the mechanisms by which gut-associated DC acquire RA-producing capacity.
机译:维生素A(VA)代谢物全反式维甲酸(RA)在粘膜免疫反应中起关键作用。 RA由肠道相关的树突状细胞(DC)产生,是产生肠道嗜性淋巴细胞和IgA抗体分泌细胞(IgA-ASC)所必需的。此外,RA调节Foxp3 +调节性T细胞(T REG)和Th17效应器T细胞分化。因此,尽管RA可以用作疫苗中的有效“粘膜佐剂”,但它似乎也是建立肠道免疫耐受所必需的。在这里,我们讨论了RA在塑造肠道免疫反应和肠道黏膜界面耐受性方面的作用。我们还关注于最近的数据,探索与肠道相关的DC获得RA生产能力的机制。

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