Differential regulation of uncoupling protein-1, -2 and -3 gene expression by sympathetic innervation in brown adipose tissue of thermoneutral or cold-exposed rats

被引:48
作者
Denjean, F [1 ]
Lachuer, J [1 ]
Géloën, A [1 ]
Cohen-Adad, F [1 ]
Moulin, C [1 ]
Barré, H [1 ]
Duchamp, C [1 ]
机构
[1] Univ Lyon 1, Lab Physiol Regulat Energet Cellulaires & Mol, CNRS, UMR 5578, F-69622 Villeurbanne, France
关键词
unilateral sympathetic denervation; semiquantitative reverse transcriptase polymerase chain reaction; cold exposure;
D O I
10.1016/S0014-5793(99)00056-3
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 control of uncoupling protein-1, -2 and -3 (UCP-1, UCP-2, UCP-3) mRNA levels by sympathetic innervation in rats was investigated by specific and sensitive RT-PCR assays. In rats reared at thermoneutrality (25 degrees C), unilateral surgical sympathetic denervation of interscapular brown adipose tissue (BAT) markedly reduced the UCP-1 mRNA level (-38%) as compared with the contralateral innervated BAT pad, but was without significant effect on UCP-2 and -3 mRNA levels. Cold exposure (7 days, 4 degrees C) markedly increased UCP-1 (+180%), UCP-2 (+115%) and UCP-3 (+195%) mRNA levels in interscapular BAT. Unilateral sympathetic denervation prevented the cold-induced rise in BAT UCP-1 and UCP-2 mRNAs, but not that in BAT UCP-3 mRNA, Results were confirmed by Northern blot analysis, These data indicate a differential endocrine control of UCP-1, UCP-2 and UCP-3 gene expression in rat BAT both at thermoneutrality and during prolonged cold exposure, (C) 1999 Federation of European Biochemical Societies.
引用
收藏
页码:181 / 185
页数:5
相关论文
共 23 条