摘要来源: 细胞生理生物化学。 2017; 43(4):1703-1717。 EPUB 2017 10月18日。PMID: 29045950“> 29045950 Yao, Hu Hu, Yun-Cheng Lv, Guo-Jun Zhao Ting Jiang BACKGROUND/AIMS: Previous studies have demonstrated that leonurine, a unique alkaloid compound of Herba leonuri, can exert anti-oxidative and抗炎对动脉粥样硬化发展的影响(AS)。这项研究是为我设计的nvestigate the effects of leonurine on cholesterol efflux from THP-1 macrophage-derived foam cells and development of atherosclerotic lesions in apoE-/- mice, and further determine the potential mechanisms. METHODS: Human THP-1 cells were fully differentiated into foam cells by the用Phorbol-12-麦尔兴酸-13-乙酸盐(PMA)和氧化密度脂蛋白(OX-LDL)进行预处理。将细胞与各种浓度的亮尿纤维孵育后,将油红O染色和高性能液相色谱(HPLC)测定分别用于检测细胞脂质积累和胆固醇含量。细胞胆固醇外排是通过液体闪烁计数确定的。使用实时定量PCR(RT-QPCR)(RT-QPCR)评估了泡沫细胞中ATP结合盒转运蛋白的MRNA和蛋白水平印迹分析。使用酶促方法评估了APOE-/ - 小鼠中APOE - / - 小鼠中的血浆甘油三酸酯(TG),总胆固醇(TG),高密度脂蛋白 - 胆固醇(HDL-C)和低密度脂蛋白 - 胆固醇(LDL-C)水平。 The atherosclerotic lesion sizes and collagen contents in aortic roots were determined by Oil Red O and Massons trichrome staining, respectively. RESULTS: Oil Red O staining and liquid scintillation counting assays showed that leonurine significantly inhibited lipid accumulation and promoted人类THP-1巨噬细胞衍生的泡沫细胞中的3H-胆固醇外排以浓度依赖性方式。此外,ABCA1/G1的mRNA和蛋白质水平均通过亮尿素增强,lxrαsiRNA或PPARγSIRNA转染增强。最后,苯脲改善了血浆脂质谱,减少了动脉粥样硬化病变的大小,胶原蛋白含量增加和放大的PPARγ,LXRα和ABCapoE-/ - 小鼠主动脉根中的A1/G1表达式。 结论: loonurine可以促进胆固醇外排和减轻Abca1/g1 in parn的表达来促进胆固醇外排和减轻细胞脂质的积累,人类THP-1巨噬细胞衍生的泡沫细胞和APOE - / - 小鼠中的动脉粥样硬化,这可能会提供左尿酸的有希望的治疗干预措施,以防止AS。