共 12 条
Vitamin A and immune regulation: Role of retinoic acid in gut-associated dendritic cell education, immune protection and tolerance
被引:149
|作者:
Cassani, Barbara
[1
]
Villablanca, Eduardo J.
[1
]
De Calisto, Jaime
[1
]
Wang, Sen
[1
]
Mora, J. Rodrigo
[1
]
机构:
[1] Harvard Univ, Massachusetts Gen Hosp, Sch Med, Gastrointestinal Unit, Boston, MA 02114 USA
关键词:
Vitamin A;
Retinoic acid;
Homing;
Dendritic cells;
Tolerance;
EXPERIMENTAL AUTOIMMUNE ENCEPHALOMYELITIS;
INFLAMMATORY-BOWEL-DISEASE;
ANTIGEN-PRESENTING CELLS;
DRAINING LYMPH-NODES;
GROWTH-FACTOR-BETA;
REACTIVE T-CELLS;
ORAL TOLERANCE;
SMALL-INTESTINE;
DEFICIENT RATS;
PEYERS-PATCHES;
D O I:
10.1016/j.mam.2011.11.001
中图分类号:
Q5 [生物化学];
Q7 [分子生物学];
学科分类号:
071010 ;
081704 ;
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. (C) 2011 Elsevier Ltd. All rights reserved.
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页码:63 / 76
页数:14
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