赶黄草配伍葛花对乙醇诱导下L-02肝细胞的影响

摘要

AIM:To explore the effect of Penthorum chinense Pursh and Puerariae flos-containing serum on L-02 liver cell injury induced by alcohol and its possible mechanism. METHODS:After preparing drug-containing serum, the L-02 cells cultured in vitro were divided into 6 groups:blank control group, model group, 1∶1 group, 2∶1 group and 1∶2 group of combination of Penthorum chinense Pursh and Puerariae flos, and tiopronin group. The viability of the L-02 cells was measured by MTT assay. The activity of alanine aminotransferase (ALT), aspartate aminotransferase (AST) and superoxide dismutase (SOD), and the content of malondialdehyde ( MDA) were detected by enzyme label methods. The expression of tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), nuclear factor E2-related factor 2 (Nrf2) and heme oxygenase-1 (HO-1) at mRNA and protein levels was determined by real-time PCR and Western blot, respectively. RE-SULTS:Compared with control group, the levels of ALT, AST and MDA were increased significantly, and SOD was de-creased in model group ( P <0.01). Compared with model group, these indexes in all treatment groups were opposite (P<0.01). Compared with control group, the expression of TNF-α and IL-6 at mRNA and protein levels was significantly increased, the mRNA and protein expression of Nrf2 and HO-1 was decreased (P<0.01). Compared with model group, these indexes in combination groups were opposite (P<0.01). CONCLUSION:The therapeutic effects of Pentehorum chinensa Pursh and Puerariae flos-containing serum may affect the expression levels of TNF-α, IL-6, Nrf2 and HO-1, and reduce the inflammatory reaction and oxidative stress in alcohol-induced L-02 liver cells, which plays a role in attenuating alcoholic liver injury.%目的:探究赶黄草配伍葛花制备的含药血清对乙醇诱导的L-02肝细胞的影响及其可能机制.方法:分别制备不同配比含药血清后,将L-02肝细胞分为6组进行实验:空白对照组,模型组,赶黄草配伍葛花1∶1组、2∶1组和1∶2组,凯希莱组. MTT法检测含药血清对乙醇诱导的L-02细胞存活率的影响;酶标法检测培养液中丙氨酸转氨酶(ALT)和天冬氨酸转氨酶(AST)及受损细胞中超氧化物歧化酶( SOD)和丙二醛( MDA)的水平;real-time PCR法和Western blot检测赶黄草配伍葛花对L-02肝细胞中肿瘤坏死因子α(TNF-α)、白细胞介素6(IL-6)、核因子E2相关因子2(Nrf2)和血红素加氧酶1(HO-1)mRNA及蛋白表达的影响.结果:与空白对照组相比,模型组ALT、AST及MDA水平明显升高,SOD活性明显降低(P<0.01);与模型组相比,各药物组ALT、AST及MDA水平明显降低,SOD活性明显升高(P<0.01).机理研究中,与空白对照组相比,模型组TNF-α和IL-6的mRNA和蛋白表达显著升高,Nrf2和HO-1的mRNA和蛋白表达显著降低( P<0.01);与模型组相比,各配伍组TNF-α和IL-6的mRNA和蛋白表达显著降低,Nrf2和HO-1的mRNA和蛋白表达显著升高(P<0.01).结论:赶黄草配伍葛花含药血清可能通过下调TNF-α和IL-6的表达,上调Nrf2和HO-1的表达,从而降低L-02肝细胞的炎症反应并减轻氧化应激,进而发挥治疗酒精性肝损伤的作用.