9-cis Retinoic acid induces the expression of the uncoupling protein-2 gene in brown adipocytes

被引:27
作者
Carmona, MC [1 ]
Valmaseda, A [1 ]
Iglesias, R [1 ]
Mampel, T [1 ]
Viñas, O [1 ]
Giralt, M [1 ]
Villarroya, F [1 ]
机构
[1] Univ Barcelona, Dept Bioquim & Biol Mol, E-08028 Barcelona, Spain
来源
FEBS LETTERS | 1998年 / 441卷 / 03期
关键词
brown adipose tissue; uncoupling protein-2; uncoupling protein-1; 9-cis retinoic acid; thermogenesis;
D O I
10.1016/S0014-5793(98)01598-1
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 expression of uncoupling protein-2 (UCP2) mRNA is up-regulated during the differentiation of brown adipocytes in primary culture. When differentiation of brown adipocytes is impaired, UCP2 mRNA expression is down-regulated, 9-cis Retinoic acid causes a dose-dependent induction of UCP2 mRNA levels in brown adipocytes, whereas all-trans retinoic acid has no effect. Specific agonists of retinoid X receptors (RXR) induce UCP2 mRNA expression, whereas specific activators of retinoic acid receptors do not. 9-cis Retinoic acid, acting through RXR receptors, is identified as a major regulator of the expression of the UCP2 gene in the brown fat cell. (C) 1998 Federation of European Biochemical Societies.
引用
收藏
页码:447 / 450
页数:4
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