天然产物研究与开发 ›› 2017, Vol. 29 ›› Issue (3): 449-453.doi: 10.16333/j.1001-6880.2017.3.016

• 开发研究 • 上一篇    下一篇

延龄草苷对过氧化氢诱导的PC12细胞氧化损伤和炎症因子表达的影响

高健美1,徐凡1,雷鸣1,刘双2,龚其海2*   

  1. 1 遵义医学院药学院;2遵义医学院 基础药理省部共建教育部重点实验室,遵义 563000
  • 出版日期:2017-03-31 发布日期:2017-04-06

Effects of Trillin on Hydrogen Peroxide-induced Oxidative Stress Injury and Inflammatory Factor in PC12 Cells

GAO Jian-mei1,XU Fan1,LEI Ming1,LIU Shuang2,GONG Qi-hai2*   

  1. 1 School of Pharmacy,Zunyi Medical University; 2 Department of Pharmacology and Key Laboratory of Basic Pharmacology of Ministry of Education,Zunyi Medical University,Zunyi,Guizhou 563000,China
  • Online:2017-03-31 Published:2017-04-06

摘要: 探讨延龄草苷对过氧化氢(H2O2)诱导的PC12细胞氧化损伤和炎症因子表达的影响。采用MTT法和LDH活性测定观察延龄草苷对PC12细胞模型的影响,采用相关试剂盒检测活性氧(ROS)和丙二醛(MDA)含量,超氧化物歧化酶(SOD)和谷胱甘肽过氧化物酶(GSH-Px)活力,Western blot检测Sirt1、NF-κB和TNF-α的蛋白表达。延龄草苷(5~20 μM)能够显著提高H2O2损伤的PC12细胞的活力,提高细胞抗氧化能力,并上调Sirt1的表达,下调NF-κB和TNF-α的表达,其保护作用可能与提高抗氧化能力,降低炎症因子损伤,调控Sirt1/NF-κB信号通路有关。

关键词: 延龄草苷, PC12细胞, 氧化应激, 炎症因子

Abstract: To investigate effects of trillin on hydrogen peroxide(H2O2)-induced oxidative stress injury and inflammatory factor expression in PC12 cells.MTT and LDH assay were used to determine the effects of trillin on PC12 cell model,respectively.Reactive oxygen species(ROS) and malondialdehyde(MDA) contents,superoxide dismutase(SOD) and glutathione peroxidase(GSH-Px) were detected by according kits,respectively.Furthermore,Sirt1,NF-κB and TNF-α protein expressions were determine by Western blot assay.Trillin(5-20 μM) significantly improved H2O2-induced PC12 cell viability and anti-oxidant enzyme activity.Moreover,trillin up-regulated Sirt1 protein expression,and down-regulated NF-κB and TNF-α protein expression.Its protective effect was possibly through enhancing anti-oxidant capability,decreasing inflammatory factor and regulating Sirt1/NF-κB signaling pathway.

Key words: trillin, PC12 cells, oxidative stress, inflammatory factor

中图分类号: 

R965.1