期刊
FEBS LETTERS
卷 569, 期 1-3, 页码 245-248出版社
WILEY
DOI: 10.1016/j.febslet.2004.06.002
关键词
ATP; lipid metabolism; mitochondrion; adipocyte; transgenic mouse
The AMP-activated protein kinase (AMPK) cascade is a sensor of cellular energy charge that promotes catabolic and inhibits anabolic pathways. However, the role of AMPK in adipocytes is poorly understood. We show that transgenic expression of mitochondrial uncoupling protein 1 in white fat, which induces obesity resistance in mice, is associated with depression of cellular energy charge, activation of AMPK, downregulation of adipogenic genes, and increase in lipid oxidation. Activation of AMPK may explain the complex metabolic changes in adipose tissue of these animals and our results support a role for adipocyte AMPK in the regulation of storage of body fat. (C) 2004 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
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