黄芪总苷液对瘢痕疙瘩成纤维细胞增殖凋亡的影响

目的 探讨黄芪总苷液对人瘢痕疙瘩成纤维细胞增殖与凋亡的影响.方法 不同浓度黄芪总苷液(10、20、40ng/mL)干预瘢痕疙瘩成纤维细胞,噻唑蓝(MTT)法检测细胞增殖;实时(real-time) PCR测定成纤维细胞凋亡抑制基因survivin及细胞凋亡因子p53及Bcl-2的表达;Western blot检测成纤维细胞survivin、p53及Bcl-2蛋白水平表达.结果 MTT法检测发现,与对照组(不加黄芪总苷液)比较,各黄芪总苷液各浓度组细胞490 nm处吸光度(A)值明显降低,瘢痕疙瘩细胞增殖均明显受抑制且呈剂量依赖性(P＜0.05).real-time PCR及Western blot检测结果显示,黄芪总苷液对瘢痕疙瘩成纤维细胞的凋亡相关因子survivin、Bcl-2有不同程度的抑制作用,对P53有不同程度的促进作用,且呈浓度依赖性.结论 黄芪总苷液能抑制瘢痕疙瘩成纤维细胞的增殖,调控其凋亡,从而达到有效治疗瘢痕疙瘩的效果.

Effects of astragaloside on proliferation and apoptosis of keloid fibroblasts

Objective To study the effect of astragaloside on proliferation and apoptosis in human keloid fibroblasts.Methods The human keloid fibroblast ceils were treated with different concentration of astragaloside(10、20、40 ng/mL).Cell proliferation was detected by MTT,the gene expreesion levels and protein levels of apoptosis-related proteins,survivin,p53 and Bcl-2.were determined by real-time PCR and Western blot,respectively.Results Comparecl with control group(treated with 0 ng/mL astragaloside),the absorbance values (A490 nm) of each concentration group were significantly reduced,which suggest that the proliferation of all keloid fibroblast were markably inhibited in a dose-dependent way (P＜0.05).The gene expreesion levels and protein levels of apoptosis-related proteins,survivin、Bcl-2 were largely suppressed and P53 werelargely promoted in a dose-dependent.Conclusion The keloid fibroblasts cells proliferation and apoptosis could be regulated by astragaloside.