Abstract:
: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 6h 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.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Yonezawa T,Sanosaka M,Haga S,Kobayashi Y,Katoh K,Obara Ydoi
10.1016/j.bbrc.2008.08.021subject
Has Abstractpub_date
2008-10-17 00:00:00pages
280-5issue
2eissn
0006-291Xissn
1090-2104pii
S0006-291X(08)01551-9journal_volume
375pub_type
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