Danshensu Promotes Cholesterol Efflux in RAW264.7 Macrophages

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• 作者：Hui Gao ; Lingyan Li ; Lan Li ; Bo Gong ; Pengzhi Dong ; Patrick Asare Fordjour…
• 关键词：Danshensu (DSS) ; Atherosclerosis ; Foam cell ; Cholesterol efflux
• 刊名：Lipids
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：51
• 期：9
• 页码：1083-1092
• 全文大小：7,638 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Life Sciences
  Biochemistry
  Medicinal Chemistry
  Microbial Genetics and Genomics
  Nutrition
  Bioorganic Chemistry
  Medical Biochemistry
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1558-9307
• 卷排序：51

文摘

Contemporary research suggests that macrophage foam cell and cholesterol efflux defect play pivotal role in atherogenesis. We reported on the heretofore unknown therapeutic effect of Danshensu (DSS) in reducing intracellular cholesterol level and unraveled the mechanism of DSS promotes cholesterol efflux. Oxidized low-density lipoprotein stimulation of Raw264.7 cells into foam cells, which were treated with DSS and co-treated with Simvastatin and Rosiglitazone. PPARγ, ABCA1, ABCG1, SR-BI, CD36, and LXR-α mRNA were quantified by Real-Time PCR. Western blotting was used to determine protein expression of PPARγ, ABCA1 and CD36. Cellular cholesterol handling was studied by measurement of intracellular lipid droplets concentration and cholesterol efflux. DSS significantly reduced scavenger receptor CD36 and its orthologue SR-BI. In addition, DSS stimulated the upregulation of cellular cholesterol exporters ABCA1 and ABCG1 to reduce intracellular lipid accumulation. DSS can reduce lipid deposition in Raw264.7 foam cells by balancing CD36 and ABCA1 protein expression.