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姜黄素对HaCaT细胞凋亡过程中相关基因表达的影响

宋  巍,杨海波,陈兰英*   

  1. 河南城建学院生命科学与工程学院,河南  平顶山  467036
  • 收稿日期:2014-03-31 修回日期:2014-05-29 出版日期:2014-07-30 发布日期:2014-07-30
  • 通讯作者: 陈兰英,E-mail:lychen666@163.com
  • 作者简介:宋 巍(1982- ),男,博士,讲师,研究方向:肿瘤细胞生物学。E-mail:songwei.xmu@gmail.com;Tel:15993571112
  • 基金资助:

    河南省重点科技攻关项目(092102310006),河南城建学院校内基金(2010JYB009)

Effects of curcumin on  related gene expression during HaCaT cell apoptosis

SONG Wei,YANG Hai-bo,CHEN Lan-ying*   

  1. School of Life Science and Engineering, Henan University of Urban Construction, Pingdingshan 467036, Henan, China
  • Received:2014-03-31 Revised:2014-05-29 Online:2014-07-30 Published:2014-07-30

摘要:

目的: 研究姜黄素对人永生化表皮HaCaT细胞凋亡过程中相关基因表达的影响。方法:通过免疫细胞化学法和免疫印迹检测姜黄素对HaCaT细胞凋亡过程中相关基因表达的影响。结果:免疫细胞化学染色结果显示,经7.5 μg/mL姜黄素处理之后,与细胞凋亡相关的抑凋亡蛋白Bcl-2表达减弱,促凋亡蛋白P53、Fas、Bax表达增强。Western blot检测结果显示,经7.5 μg/mL姜黄素处理之后,与细胞凋亡相关的抑凋亡蛋白Bcl-2表达下调,促凋亡蛋白P53、Fas、Bax表达上调。结论:姜黄素诱导HaCaT细胞凋亡过程中伴随着抑凋亡基因bcl-2表达的抑制和促凋亡基因p53、Bax和Fas基因的激活。由此证明姜黄素通过多种凋亡相关基因的调控,激活凋亡信号传导途径,诱使细胞凋亡。

关键词: HaCaT细胞, 细胞凋亡, 姜黄素, 凋亡相关基因

Abstract:

OBJECTIVE: To explore the effects of curcumin on apoptosis-related gene expression in HaCaT cells. METHODS:Immunocytochemistry and Western blot were used to detect the effects of curcumin on apoptosis-related protein expression. RESULTS:Immunocytochemistry staining results showed that the expression levels of  P53,Bax,Fas were upregulated significatntly while the products of Bcl-2 proteins were downregulated significantly in cells treated with 7.5 μg/mL curcumin. Western blot analysis confirmed the same results. CONCLUSION:Curcumin induced apoptosis of HaCaT cells by inhibiting expression of  Bcl- 2 gene and promoting the apoptosis genes p53,Bax and Fas activation.  Curcumin could induce apoptosis by regulation of a variety of apoptosis-related genes to activate the apoptosis signaling pathway.

Key words: HaCaT cells, cell apoptosis, curcumin, apoptosis-related genes