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Aralia cordata inhibits triacylglycerol biosynthesis in HepG2 cells.


ABSTRACT: Glycerol-3-phosphate acyltransferase (GPAT) catalyzes the first committed step in triacylglycerol (TAG) and phospholipid biosynthesis, and has been considered as one of the drug targets for treating hepatic steatosis, insulin resistance, and other metabolic disorders. The aim of this study was to investigate the GPAT inhibitors from natural products and to evaluate their effects. The methanol extract of Aralia cordata roots showed a strong inhibitory effect on the human GPAT1 activity. A further bioactivity-guided approach led to the isolation of ent-pimara-8(14),15-dien-19-oic acid, (PA), one of the major compounds of A. cordata, which suppressed the GPAT1 activity with IC50 value of 60.5 ?M. PA markedly reduced de novo lysophosphatidic acid synthesis through inhibition of GPAT activity and therefore significantly decreased synthesis of TAG in the HepG2 cells. These results suggest that PA as well as A. cordata root extract could be beneficial in controlling lipid metabolism.

SUBMITTER: Kim MO 

PROVIDER: S-EPMC3868379 | biostudies-literature | 2013 Dec

REPOSITORIES: biostudies-literature

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Aralia cordata inhibits triacylglycerol biosynthesis in HepG2 cells.

Kim Mun Ock MO   Lee Sun Hwa SH   Seo Jee Hee JH   Kim Il Soon IS   Han Ah Reum AR   Moon Dong Oh DO   Cho Sungchan S   Cui Long L   Kim Jungwoo J   Lee Hyun Sun HS  

Journal of medicinal food 20131127 12


Glycerol-3-phosphate acyltransferase (GPAT) catalyzes the first committed step in triacylglycerol (TAG) and phospholipid biosynthesis, and has been considered as one of the drug targets for treating hepatic steatosis, insulin resistance, and other metabolic disorders. The aim of this study was to investigate the GPAT inhibitors from natural products and to evaluate their effects. The methanol extract of Aralia cordata roots showed a strong inhibitory effect on the human GPAT1 activity. A further  ...[more]

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