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中国临床药理学与治疗学 ›› 2005, Vol. 10 ›› Issue (12): 1376-1380.

• 研究原著 • 上一篇    下一篇

姜黄素对过氧化氢诱导的血管内皮细胞损伤的双重作用

肖健, 李校1, 郭建红, 周仲楼2   

  1. 暨南大学药学院药理教研室, 广州 510632, 广东;
    1温州医学院生物与天然药物研究院, 温州 315027, 浙江;
    2卫生部眼视光研究中心, 温州 315027, 浙江
  • 收稿日期:2005-09-20 修回日期:2005-10-29 出版日期:2005-12-26 发布日期:2020-11-11
  • 通讯作者: 李校,男,教授,博士生导师,研究方向:生物药物与天然药物药理研究,新药开发。Tel:0577-86689983E-mail:xiaokunli@163.ne

Dual action on hydrogen peroxide induced oxidative vascularendothelial cell damage by curcumin

XIAO Jian, LI Xiao-kun1, GUO Jian-hong, ZHOU Zhong-lou2   

  1. Pharmacology Department,Pharmacy College of Jinan University,Guangzhou 510630,Guangdong,China;
    1Institute of Bio-Pharmaceutical and Natural Drug,Wenzhou Medical College,Wenzhou 325027,Zhejiang,China;
    2National Optometry Research Center,Wenzhou 325027,Zhejiang,China
  • Received:2005-09-20 Revised:2005-10-29 Online:2005-12-26 Published:2020-11-11

摘要: 目的: 研究姜黄素(Cur) 对过氧化氢(H2O2) 诱导的血管内皮细胞ECV304 的作用及可能机制;方法:胎盘兰计数法分组观察在不同的时间点加入姜黄素后对H2O2 诱导的ECV304 细胞氧化损伤的作用。流式细胞仪分析细胞周期及细胞凋亡率的变化,试剂盒检测一氧化氮(NO) 、丙二醛(MDA) 含量及超歧化物氧化酶(SOD) 、谷胱甘肽还原酶(GR) 活性的变化。结果: 姜黄素0 ~ 100μmol·L-1 与H2O2500μmol·L-1同时作用5 h,随姜黄素浓度升高细胞存活率升高;25 ~ 100μmol·L-1姜黄素预先作用1 h,再换为H2O2 500μmol·L-1作用4 h,细胞存活率明显下降;H2O2500μmol·L-1 作用4 h,再加入25 ~ 100μmol·L-1姜黄素作用1 h,细胞存活率也升高。姜黄素对H2O2 诱导的细胞凋亡没有明显的影响,但同时作用组、H2O2 先作用组S 期细胞所占比例升高,姜黄素先作用组S 期细胞所占比例下降。同时作用组、H2O2 先作用组的SOD 、NO 、Gr水平相对升高,MDA 水平下降,姜黄素先作用组的SOD 、NO 、Gr水平相对下降,MDA 水平升高。结论: 姜黄素对H2O2诱导的血管内皮细胞ECV304 有双重效应,即有保护效应也有细胞毒效应,与其作用时间点有关。

关键词: 姜黄素, ECV304, 过氧化氢, 细胞毒作用, 保护作用

Abstract: AIM: To observe the effect and mechanisms of curcumin to hydrogen peroxide induced oxidative vascularendothelial cells ECV304 damage.METHODS: Estimate cell survival rates of curcumin to H2O2 induced oxidative ECV304 damage by trypan blue staining.The observed the change of cell cycle and cell apoptosis rates by FACS.Detect the expression of NO,MDA contents and SOD,Gractivity by test kits.RESULTS: When added simultaneously with 500μmol·L-1 curcumin (0-100μmol·L-1) for5 h effectively protected cells form ox-idative damage.However,when the cells were pretreated with curcumin (25-100μmol·L-1) for1h before H2O2 exposure for4 h,curcumin was unable to inhibit H2O2-induced cell damage.Instead;when pretreated with H2O2 for4h and then added curcumin (25-100μmol·L-1),cell survival rate also increased.It was no obviously change of cell apoptosis rates by curcumin to H2O2-induced cell damage,but curcumin was found to induce Sphase cell cycle arrest in curcumin togetherwith H2O2 grouPand post-treatment with curcumin group,and adversely in pretreatment with curcumin group.CONCLUSION: The curcumin has dual action to hydrogen peroxide induced oxidative vascularendothelial cells ECV304 damage,cytoprotective and cytotoxic effects,which is correlated different chronologicaol ordertreated with curcumin.

Key words: curcumin, ECV304, hydrogen peroxide, cytoprotective effects, cytotoxic effects

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