天然产物研究与开发 ›› 2018, Vol. 30 ›› Issue (12): 2082-2087.doi: 10.16333/j.1001-6880.2018.12.008

• 研究论文 • 上一篇    下一篇

双氢青蒿素联合奥沙利铂对人结肠癌HCT116细胞的增殖及凋亡的影响

李霁,刘丹丹,周峰旭,李凌晨,纳鑫*   

  1. 昆明医科大学药学院暨云南省天然药物药理重点实验室,昆明 650500
  • 出版日期:2019-01-02 发布日期:2019-01-02
  • 基金资助:

    云南省应用基础研究项目(2013FZ061)

Effects of Dihydroartemisinin and Oxaliplatin on Proliferation and Apoptosis of Human Colon Cancer HCT116 Cells

LI Ji, LIU Dan-dan, ZHOU Feng-xu, LI Ling-chen, NA Xin*   

  1. School of Pharmaceutica Sciences and Yunnan Key Laboratory of Pharmacology for Natural Products,Kunming Medical University,Kunming 650500,China
  • Online:2019-01-02 Published:2019-01-02

摘要: 研究双氢青蒿素(DHA)与奥沙利铂(L-OHP)联合对人结肠癌HCT116细胞的增殖及凋亡的影响,初步探讨凋亡的作用机制。运用MTT法检测不同浓度DHA、L-OHP及DHA与L-OHP联合对HCT116细胞的抑制作用,计算DHA与L-OHP是否发挥协同作用。实验结果显示DHA与L-OHP均对HCT116细胞增殖有抑制作用,二者联合在一定浓度下发挥协同作用。应用AnnexinV-FITC/PI双染检测药物联用后细胞凋亡情况,结果显示联合组比DHA组和L-OHP组凋亡率提高(P<0.01)。通过检测凋亡相关蛋白Bcl-2及Bax含量及casepase-3、casepase-8活性发现,与单药组比较DHA、L-OHP 联合组Bcl-2/Bax降低,casepase-3、casepase-8活性提高(P<0.01)。研究结果表明DHA与奥沙利铂联合能够显著抑制结肠癌HCT116细胞的增殖,在一定浓度下发挥协同作用,且能诱导细胞凋亡,其机制可能与加重DNA损伤,下调Bcl-2/Bax,激活casepase-3、casepase-8有关。

关键词: 双氢青蒿素, 奥沙利铂, 联合用药, 凋亡, 结肠癌

Abstract: The effects of dihydroartemisinin (DHA) combined with oxaliplatin (L-OHP) on the proliferation and apoptosis of human colon cancer HCT116 cells were studied,and the mechanism of apoptosis was discussed.The effects of DHA,L-OHP and DHA combined with L-OHP in different concentrations on HCT116 cells were detected by MTT.The results showed that DHA and L-OHP inhibited the proliferation of HCT116 cells.Dihydroartemisinin and oxaliplatin played a synergistic effect at a certain concentration.AnnexinV-FITC/PI double staining was used to detect the apoptosis,and the results showed that the apoptosis rate of the combination group was higher than that of DHA group and L-OHP group (P<0.01).In addition,it was found that the apoptosis-related proteins Bcl-2/Bax was decreased and the casepase-3 and casepase-8 activity was increased in the combined group compared with the single drug group (P<0.01).The results showed that the combination of dihydroartemisinin and oxaliplatin could significantly inhibit the proliferation of colon cancer HCT116 cells,exert a synergistic effect at a certain concentration,and induce apoptosis,which may be related to enhance DNA damaged,down-regulation of Bcl-2/Bax and activated casepase-3,casepase-8.

Key words: dihydroartemisinin, oxaliplatin, combination therapy, apoptosis, colon cancer

中图分类号: 

R284 R961