Retinoic acid-dependent regulation of immune responses by dendritic cells and macrophages.

Retinoic acid-dependent regulation of immune responses by dendritic cells and macrophages.
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DOI:
10.1016/j.smim.2008.07.007
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发表时间:
2009-02
影响因子:
7.8
通讯作者:
Pulendrana, Bali
Pulendrana, Bali
中科院分区:
医学2区
文献类型:
--
作者:
Manicassamya, Santhakumar;Pulendrana, Bali

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树突状细胞(DC)控制抗原特异性T和B细胞应答的强度和质量。最近的进展指出了一种新的机制,其中维生素A代谢成视黄酸(RA)在DC中,调节淋巴细胞分化的关键参数。首先,RA增强DC对Foxp 3 + T调节细胞的诱导。因此,肠道DC和巨噬细胞的特定亚群组成性表达RA合成酶,并诱导调节性T细胞。此外,RA编程DC以在活化的T和B细胞上印记粘膜归巢特性,并增强B细胞对免疫球蛋白-A(伊加)的诱导。在这里,我们回顾了这些最新进展,在调节不同的生物过程中的RA的多效性的影响。
Dendritic cells (DCs) control the strength and quality of antigen-specific T and B cell responses. Recent advances point to a novel mechanism, in which metabolism of vitamin A into retinoic acid (RA) in DCs, regulate critical parameters of lymphocyte differentiation. First, RA enhances the induction of Foxp3+ T regulatory cells by DCs. Thus, specific subsets of intestinal DCs and macrophages constitutively express RA synthesizing enzymes, and induce T regulatory cells. In addition, RA programs DCs to imprint mucosal homing properties on activated T and B cells, and enhanced induction of immunoglobulin-A (IgA) by B cells. Here, we review these recent advances, in the context of the pleiotropic effects of RA in regulating diverse biological processes.
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