机构:[1]Laboratory of Ethnopharmacology, Regenerative Medicine Research Center, Institute for Nanobiomedical Technologyand Membrane Biology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041四川大学华西医院[2]Mathematical College,Sichuan University, Chengdu, Sichuan 610064[3]Emergency Department, West China Hospital, Sichuan University,Chengdu, Sichuan 610041四川大学华西医院[4]Department of Digestive Diseases, Dongfang Hospital, Beijing University ofTraditional Chinese Medicine, Beijing 100029, P.R. China
Robinetinidol-(4β,2')-tetrahydroxy-flavone (RBF) is an oligomeric condensed polyphenol that has been shown to exhibit anti-obesity effects in mice. However, little is know regarding its effect on cholesterol synthesis. The present study therefore aimed to investigate the effect of RBF on cholesterol synthesis. It was determined that RBF decreased serum total cholesterol and low density lipoprotein cholesterol in rats by 25.9 and 50.8%, respectively (P<0.001). These results strengthen evidence for the hypothesis that RBF exerts anti-atherogenic effects in vivo. Furthermore, RBF decreased cholesterol synthesis by 72%, when measured using a 3 h period of radiolabeled acetate incorporation into cholesterol, but not when using radiolabelled mevalonate, suggesting that RBF-mediated inhibition occurred largely at or above the level of 3-hydroxy-3-methylglutaryl-coenzymeA (HMG-CoA) reductase. The mechanism by which RBF inactivates HMG-CoA reductase may be attributed to the induction of phosphorylation of adenosine monophosphate (AMP)-kinase, since these results showed that RBF increased phosphorylation of AMP-kinase and HMG-CoA reductase by 2.1- and 3.2-fold, respectively, within 30 min of addition. These results suggest that RBF may be a potential therapeutic agent for hypercholesteremia.
基金:
This study was financially supported by the China National '12.5' Foundation (grant no. 2011BAJ07B04) and the Open Foundation from the State Key Laboratory of Oral Diseases Sichuan University (grant no. SKLODSCUKF2012-03) and the National Natural Science Foundation of China (grant no. 20972105).
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外文
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中科院(CAS)分区:
出版当年[2015]版:
大类|4 区医学
小类|4 区医学:研究与实验4 区肿瘤学
最新[2023]版:
大类|3 区医学
小类|4 区医学:研究与实验4 区肿瘤学
第一作者:
第一作者机构:[1]Laboratory of Ethnopharmacology, Regenerative Medicine Research Center, Institute for Nanobiomedical Technologyand Membrane Biology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041[2]Mathematical College,Sichuan University, Chengdu, Sichuan 610064
共同第一作者:
通讯作者:
通讯机构:[1]Laboratory of Ethnopharmacology, Regenerative Medicine Research Center, Institute for Nanobiomedical Technologyand Membrane Biology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041[*1]Laboratory of Ethnopharmacology, Regenerative Medicine Research Center, Institute for Nanobiomedical Technology and Membrane Biology, West China Hospital, Sichuan University, 1 Keyuan 4 Road, Chengdu, Sichuan 610041, P.R. China
推荐引用方式(GB/T 7714):
HAI NIU,YU CHAO,KE LI,et al.Robinetinidol-flavone attenuates cholesterol synthesis in hepatoma cells via inhibition of 3-hydroxy-3-methylglutaryl-coenzyme A reductase.[J].Molecular medicine reports.2015,11(1):561-6.doi:10.3892/mmr.2014.2758.
APA:
HAI NIU,YU CHAO,KE LI,JUNXIANG LI,WEIHONG GONG&WEN HUANG.(2015).Robinetinidol-flavone attenuates cholesterol synthesis in hepatoma cells via inhibition of 3-hydroxy-3-methylglutaryl-coenzyme A reductase..Molecular medicine reports,11,(1)
MLA:
HAI NIU,et al."Robinetinidol-flavone attenuates cholesterol synthesis in hepatoma cells via inhibition of 3-hydroxy-3-methylglutaryl-coenzyme A reductase.".Molecular medicine reports 11..1(2015):561-6