2-脱氧-D-葡萄糖与奥沙利铂对人肝癌SMMC-7721细胞增殖及凋亡的影响

目的: 研究糖酵解抑制剂2-脱氧-D-葡萄糖(2-deoxy-D-glucose,2-DG)与奥沙利铂(oxaliplatin,L-OHP)单独及联合应用对人肝癌细胞SMMC-7721增殖及凋亡的影响。方法: 将2-DG及L-OHP单药及联合用药作用于人肝癌细胞SMMC-7721,MTT法检测各组细胞的生长抑制率,并计算两药的协同作用q值,流式细胞仪检测各组细胞周期及凋亡情况,caspase-3试剂盒检测caspase-3活性。结果: 不同浓度的2-DG和L-OHP均可使肝癌细胞增殖受到抑制,并呈时间、浓度依赖性,两药合用后对细胞的增殖抑制作用明显增强(P<0.05)。2-DG可诱导细胞凋亡,使细胞周期阻滞于G₂/M期;与L-OHP合用后细胞凋亡率更高,可阻滞细胞于G₂/M期和S期。Caspase-3活性在两药联合应用时明显增强。结论: 2-DG能有效抑制SMMC-7721细胞生长增殖,并诱导其凋亡;当其与L-OHP联合应用时能增强L-OHP的抗肿瘤作用,其机制可能与增加caspase-3活性有关。

Effects of 2-deoxy-D-glucose and oxaliplatin on proliferation and apoptosis of human hepatoma cell line SMMC-7721

AIM: To investigate the effects of 2-deoxy-D-glucose(2-DG) or oxaliplatin(L-OHP) alone and the combination of both on the proliferation and apoptosis of hepatoma cell line SMMC-7721 in vitro. METHODS: Human hepatoma cell line SMMC-7721 was treated with 2-DG or L-OHP alone,or both.The inhibitory effect on the proliferation of SMMC-7721 cells was estimated by MTT method.The q value,which represents synergistic effect,was determined.Apoptotic rate and cell cycle were assayed by flow cytometry.The activity of c...