无花果枝提取物体外诱导胃癌BGC-823细胞凋亡的研究

Apoptosis of Human Gastric Cancer Line BGC-823 Induced by Fig Branch Extract

为探讨新鲜无花果枝提取物(FBE)对体外培养的人胃癌细胞株BGC-823增殖和凋亡的影响,用不同浓度FBE处理胃癌BGC-823细胞,采用细胞形态学观察,细胞活力测定(MTT法)及免疫组织化学法检测增殖细胞核抗原(PCNA)表达情况来评价FBE对BGC-823细胞体外增殖的影响,应用流式细胞术的膜联蛋白V/碘化丙啶技术(Annexin V/PI法)检测FBE诱导BGC-823细胞体外凋亡的情况。形态学观察发现中高剂量(>0.5mg/mL)组处理4h细胞出现明显凋亡,24h检测到中高剂量(>0.5mg/mL)组细胞增殖活力和增殖细胞核抗原表达显著降低(P<0.05),流式细胞仪检测到FBE处理4h所有剂量组细胞平均凋亡率(9.76%,10.87%,14.29%,49.67%,71.37%)均高于对照组(6.1%)(P<0.05或P<0.01),以上作用效果呈现剂量依赖性。以上结果说明无花果枝提取物能够通过诱导胃癌BGC-823细胞凋亡从而抑制其体外的生长与增殖。

To illustrate the growth inhibition and apoptosis in human gastric cancer BGC-823 cells treated with Fig Branch extract (FBE),morphologic changes of gastric cells were observed under an inversion microscope,colony formation inhibition and immunohistochemical staining detecting the expression of PCNA were used to reveal the effect of FBE on proliferation of BGC-823 cells,and flow cytometry was used to determine the apoptosis of cells by Annexin V/PI assay after treated with various concentration of FBE in vi...