期刊
SEMINARS IN IMMUNOLOGY
卷 21, 期 1, 页码 22-27出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.smim.2008.07.007
关键词
Macrophages; Retinoic acid
类别
资金
- National Institutes of Health [AI048638, AI05726601, DK057665, U54 AI057157, AI-50019]
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. (C) 2008 Elsevier Ltd. All rights reserved.
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