Absolute levels of transcripts for mitochondrial uncoupling proteins UCP2, UCP3, UCP4, and UCP5 show different patterns in rat and mice tissues

被引：51
|
作者：
Alan, Lukas [1 ]
Smolkova, Katarina [1 ]
Kronusova, Eva [1 ]
Santorova, Jitka [1 ]
Jezek, Petr [1 ]
机构：
[1] Acad Sci Czech Republ, Inst Physiol, Dept Membrane Transport Biophys, Inst Physiol, CR-14220 Prague 4, Czech Republic
来源：
JOURNAL OF BIOENERGETICS AND BIOMEMBRANES | 2009年 / 41卷 / 01期
关键词：
Mitochondrial uncoupling proteins; UCP2; UCP3; UCP4; UCP5; Absolute mRNA levels; POLYUNSATURATED FATTY-ACIDS; BROWN ADIPOSE-TISSUE; OXIDATIVE STRESS; SKELETAL-MUSCLE; IN-VIVO; EXPRESSION; CELLS; BRAIN; MEMBRANE; TRANSLATION;
D O I：
10.1007/s10863-009-9201-2
中图分类号：
Q6 [生物物理学];
学科分类号：
071011 ;
摘要：
Existing controversies led us to analyze absolute mRNA levels of mitochondrial uncoupling proteins (UCP1-UCP5). Individual UCP isoform mRNA levels varied by up to four orders of magnitude in rat and mouse tissues. UCP2 mRNA content was relatively high (0.4 to 0.8 pg per 10 ng of total mRNA) in rat spleen, rat and mouse lung, and rat heart. Levels of the same order of magnitude were found for UCP3 mRNA in rat and mouse skeletal muscle, for UCP4 and UCP5 mRNA in mouse brain, and for UCP2 and UCP5 mRNA in mouse white adipose tissue. Significant differences in pattern were found for rat vs. mouse tissues, such as the dominance of UCP3/UCP5 vs. UCP2 transcript in mouse heart and vice versa in rat heart; or UCP2 (UCP5) dominance in rat brain contrary to 10-fold higher UCP4 and UCP5 dominance in mouse brain. We predict high antioxidant/antiapoptotic UCP function in tissues with higher UCP mRNA content.
引用
收藏
页码：71 / 78
页数：8
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