期刊
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
卷 375, 期 2, 页码 280-285出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bbrc.2008.08.021
关键词
mammary epithelial cells; uncoupling proten 2; long-chain fatty acids; insulin; dexamethazone
资金
- Japan Society for Promotion of Science
Although mammary epithelial cells are known to synthesize and accumulate triacylglycerol (TAG) in order to produce milk lipid in the cytosol, lipid and energy metabolism is still not fully understood. In this study, we assessed the effects of long-chain fatty acid (LCFA) on the accumulation Of cytosolic TAG and uncoupling protein (UCP) 2 in cloned bovine mammary epithelial cells (bMEC). LCFAs significantly raised the expression of UCP2 mRNA and the accumulation of TAG. We observed the rapid elevation in UCP2 shown at 6 h after LCFA treatment. Insulin (5-50 ng/ml) or dexamethasone (500 nM) significantly suppressed the expression of UCP2 mRNA. These results suggest that UCP2 play an important role of lipid and energy metabolism in mammary epithelial cells. (c) 2008 Elsevier Inc. All rights reserved.
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