外源性S100A8在体外抑制HeLa细胞的增殖和侵袭

目的探讨外源性S100A8对宫颈癌细胞系HeLa的增殖、凋亡、克隆形成及迁移和侵袭的影响。方法 MTT法检测细胞增殖活性;Hoechst染色检测细胞凋亡;流式细胞技术检测细胞周期;平板集落形成实验检测细胞集落形成;划痕和Transwell侵袭实验分别检测细胞的迁移和侵袭。结果细胞培养3 d时,浓度为100、300和1 000 mg/L的GST-hS100A8组的A值较GST组减少13.64%、19.29%和25.06%(P<0.05);在浓度为100 mg/L时,GST-hS100A8组呈时间依赖性减少(P<0.05);GST-hS100A8组在第3天时细胞凋亡率较GST组增加5.18倍(P<0.05),同时,出现峰值为(19.9±0.76)%的凋亡峰,而对照组没有凋亡峰;GST-hS100A8组的集落形成率较GST组减少30.2%(P<0.005);划痕愈合率较GST组降低30.1%(P<0.05);穿膜细胞数减少48.9%(P<0.05)。结论外源性S100A8可能具有抑制宫颈癌的作用。

Exogenous S100A8 inhibits the proliferation and invasion of HeLa cells in vitro

Objective To study the effect of exogenous S100A8 on cell proliferation,apoptosis,colony formation,migration and invasion of human cervical cancer cell line HeLa.Methods MTT was used to detect the cell proliferation;Hoechst staining was used to detect the cell apoptosis;Flow cytometry was used to detect the variation of cell cycle;colony-forming assay was used to detect the colony formation;Wound healing assay and Transwell chamber experiment were used to detect the cell migration and invasion.Results After...