葛根素减弱ox-LDL诱导HUVECs组织因子及其抑制物的表达

目的探讨葛根素(puerarin)对氧化型低密度脂蛋白(ox-LDL)诱导人脐静脉内皮细胞(HUVECs)组织因子(TF)和组织因子途径抑制物(TFPI)表达的影响。方法用不同浓度葛根素和50 mg/L ox-LDL共同孵育HUVECs,实时荧光定量PCR和Western blot法分别检测TF和TFPI mRNA和蛋白表达。结果与对照组相比,ox-LDL明显诱导HUVECs TF mRNA和蛋白表达(P0.01);而明显抑制TFPI mRNA和蛋白表达(P0.01);50、100和200μmol/L葛根素呈剂量依赖性降低ox-LDL对TF mRNA和蛋白的诱导作用(P0.01),减弱ox-LDL对TFPI mRNA和蛋白的抑制作用(P0.01)。结论葛根素减轻了ox-LDL对HUVECs TF和TFPI mRNA及蛋白表达的诱导。

Puerarin attenuates the expressions ofHUVECs tissue factor and its inhibitor induced by ox-LDL

Objective To investigate the effects of puerarin on the expression of human umbilical vein endothelial cells (HUVECs) tissue factor (TF) and tissue factor pathway inhibitor (TFPI) induced by oxidized low-density lipoprotein (ox-LDL).Methods After HUVECs were incubated with different concentrations of puerarin and 50 mg/L ox-LDL,the expression of TF and TFPI mRNA and protein were detected by real-time fluorescent quantitative PCR and Western blot respectively.Results Compared with control,treatment with ox-LDL caused the augment of TF mRNA and protein expression (P<0.01),and the decrease of TFPI mRNA and protein expression.However,50,100,and 200 μmol/L puerarin blunted the augment of TF mRNA and protein expression and weakened the inhibition of TFPI mRNA and protein expression induced by ox-LDL(P<0.01).Conclusions Puerarin reduces HUVECs TF and TFPI mRNA and protein induced by ox-LDL.