【摘要】 目的研究槲皮素对人胃癌MGC-803细胞增殖的影响及诱导凋亡作用。方法用四甲基偶氮唑盐(MTT)比色法检测不同浓度槲皮素对MGC-803细胞的增殖活性的效应;原位末端核苷标记(TUNEL)法检测槲皮素诱导细胞凋亡的凋亡指数(AI)。结果槲皮素浓度为40~100μmol/L时对MGC-803细胞增殖有显著的抑制效应,且呈剂量依赖性;细胞加入槲皮素诱导48h后AI明显高于未加入组(P<0.05)。结论槲皮素在一定浓度范围内能显著抑制MGC-803细胞的增殖并能诱导其凋亡,其作用呈浓度依赖性。更多还原

【Abstract】 OBJECTIVE:To study the effect of quercetin on the proliferation and apoptosis of human gastric carcinoma cell line MGC-803.METHODS:MTT assay was adopted to measure the effect of quercetin at different concentrations on the proliferation of MGC-803 cells.Cell apoptosis index(AI)induced by quercetin was measured by TUNEL assay.RESULTS: Quercetin at a certain concentration from 40μmol/L to 100μmol/L could successfully inhibit the proliferation of MGC-803 cells in a dose-dependent manner.TUNEL assay indicated that apoptosis cells induced by quercetin in treatment group were much more than that in control group after 48 hours(P<0.05).CONCLUSIONS:Quercetin of certain concentration can evidently inhibit the proliferation of MGC-803 cells and induce their apoptosis with concentration-dependent relation.更多还原