二烯丙基三硫化物对内皮细胞缺氧复氧损伤的保护作用

Protective Effect of Diallyl Trisulfide on Hypoxia-Reoxygenation Injury of Endothelial Cells

目的:探究以二烯丙基三硫化物为主要成分的大蒜素对心血管系统发挥保护作用的机制。方法:以内皮细胞缺氧复氧模型为对象,采用细胞计数试剂盒(CCK8)评价内皮细胞活力的变化;用激光共聚焦显微镜测定内皮细胞线粒体膜电位的改变;将细胞接种于matrigel,观察血管形成能力的差异。结果:二烯丙基三硫化物在质量浓度为0.2μg/mL时对缺氧复氧损伤的保护作用最强,其主要机制是通过减少线粒体膜电位去极化水平使内皮细胞在经历缺氧复氧后仍维持正常的增殖分化能力。结论:二烯丙基三硫化物通过线粒体途径减轻内皮细胞缺氧复氧的损伤。

Objective：To explore the mechanism of the protective effect of allicin,of which the main composition is diallyl trisulfide,on cardiovascular system.Methods：The endothelial cell model of hypoxia-reoxygenation injury was the research object.Vitality change of endothelial cells was evaluated by using CCK8.Confocal laser scanning microscope was used to detect the change of mitochondrial membrane potential in endothelial cells.Endothelial cells were planted onto matrigel so as to observe the difference regarding the ability of angiogenesis.Results：It showed that diallyl trisulfide performed the best protective effect at the concentration of 0.2μg/mL,and its main mechanism based on maintaining the normal ability of proliferation and differentiation of endothelial cells after hypoxia-reoxygenation process by reducing the depolarization level of mitochondrial membrane potential.Conclusions：Diallyl trisulfide alleviates the hypoxia-reoxygenation injury of endothelial cells through the pathway involved with mitochondria.