苯甲酰芍药苷增强ABCA1表达促进胆固醇流出

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Abstract Objective To investigate the effect of Benzoylpaeoniflorin (BP) on cholesterol efflux from THP-1 cells. Methods The experiment was divided into ac-LDL group, apoA-1 group and apoA-1+BP group. The model of foam cells was established by adding 160 nmol/L phorbol-1-myristate-13-acetate (PMA) for 24 h in THP-1 cells, followed by 50 μg/mL acetylated low-density lipoprotein (ac-LDL). The foam cells cholesterol efflux rate was determined using liquid scintillation counting, the contents of total cholesterol of foam cells were observed by enzymatic reaction method. adenosine triphosphate binding cassette transporter A1(ABCA1) mRNA expression was detected by quantitative polymerase chain reaction (qPCR). The expression of ABCA1, sterol regulated original binding proteins（SREBPs）and Liver X receptor alpha (LXRα) were analyzed by Western blot. Results THP-1 cell model was successfully established. Cholesterol efflux of foam cells in apoA-1+BP group was higher than that in apoA-1 group, and the difference was highly statistically significant (P < 0.01). The total cholesterol content of foam cells in apoA-1+BP group were lower than those in apoA-1 group, and difference was highly statistically significant (P < 0.01). The mRNA and protein levels of ABCA1 in apoA-1+BP group were higher than those in apoA-1 group, and the difference was statistically significant (P < 0.05 or P < 0.01). The expression levels of LXRα in apoA-1+BP group were higher than those in apoA-1 group, and the difference was highly statistically significant (P < 0.01). The SREBP1 and SREBP2 expression levels in apoA-1+BP group were lower than those in apoA-1 group, and the difference was highly statistically significant (P < 0.01). Conclusion BP can promote cholesterol efflux through the LXRα-ABCA1 pathway.

Key words： Benzoylpaeoniflorin Cholesterol efflux Foam cells

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	CHEN Xiaojia1 TANG Wanze2 MA Weilie1 DING Hang1 ZHANG Zhizhen1

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CHEN Xiaojia1 TANG Wanze2 MA Weilie1 DING Hang1 ZHANG Zhizhen1. Benzoylpaeoniflorin promote cholesterol efflux by enhancing ABCA1 expression[J]. 中国医药导报, 2020, 17(10): 8-12.

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http://www.yiyaodaobao.com.cn/EN/ OR http://www.yiyaodaobao.com.cn/EN/Y2020/V17/I10/8

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