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  • Title: Inhibition of stearoyl-CoA desaturase 1 reduces lipogenesis in primary bovine adipocytes.
    Author: Kadegowda AK, Burns TA, Pratt SL, Duckett SK.
    Journal: Lipids; 2013 Oct; 48(10):967-76. PubMed ID: 23929455.
    Abstract:
    The objectives were to determine the effect of stearoyl-CoA desaturase (SCD1) inhibition on adipocyte proliferation, differentiation and cellular lipid metabolism in bovine primary adipocytes. Inhibition of SCD1 activity by sterculic acid (SA) or conjugated linoleic acid, trans-10 cis-12 isomer, (t10, c12-CLA) did not alter adipocyte cellular proliferation, viability or differentiation. In 1,2-[(13)C]-acetate supplemented cells, the mass isotopomer distribution analysis showed that the fractional synthesis rate of [(13)C]-16:0 was reduced (P < 0.01) in SA and t10, c12-CLA treatments compared to control. Of the lipogenic genes, t10, c12-CLA treatment decreased (P < 0.05) the expression of SCD1, acetyl-CoA carboxylase (ACC), fatty acid synthase; whereas SA supplementation decreased (P < 0.05) the expression of ACC. Both SA and t10, c12-CLA increased (P < 0.05) the expression of hormone-sensitive lipase and carnitine palmitoyl transferase involved in lipolysis and oxidation. Inhibition of SCD1 in bovine adipocytes decreases de novo fatty acid synthesis by down-regulating genes involved in lipogenesis and up-regulating genes involved in lipolysis and oxidation.
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