Objective:To investigate the effects of miR-25-3p on the occurrence,development and proliferation of tongue squamous cell carcinoma cells.Methods:To establish tongue squamous cell carcinoma cell line Tca8113 that stab...Objective:To investigate the effects of miR-25-3p on the occurrence,development and proliferation of tongue squamous cell carcinoma cells.Methods:To establish tongue squamous cell carcinoma cell line Tca8113 that stably and highly express miR-25-3p using recombinant reiroviral vector-mediated gene transfer method.The proliferation of transfected Tca8113 was detected by thiazolyl blue tetrazolium bromide(MTT)and cell colony formation assays.eyclnD1,p21^(cipt)and p27^(kipt)mRNA expressions in the transfected Tca-8113 were detected by quantitative PCR.cyclinD1,p21^(cipt),p27^(kipt),AKT,p-AKT,FOXOt and p-FOX01 expressions in the transfected Tca8113 were detected by western blot analysis.In addition,miR-25-3p expression in the tongue squamous cell carcinoma cell line and tissue specimen was also detected by quantitative PCR.Results:Quantitative PCR showed that mitt-25-3p expression in the tongue squamous cell carcinoma cell lines and tissue specimen was significantly lower than that in the adjacent tissue.MTT and cell colony formation assays showed that after miR-25-3p overexpression,the proliferation of transfected Tca8113 was obviously attenuated.Western blot analysis and quantitative PCR showed that after miR-25-3p overexpression.p21^(cipt)and p27^(kipt)expressions were upregulated,while cyclinD1,AKT,FOXO1 expressions were downregulated,and AKT and FOXO1 phosphorylation was inactivated in the transfected Tca8113 cells.Conclusions:MiR-25-3p inhibited the proliferation of tongue squamous cell carcinoma cells and regulated cell cycle-related protein expression,playing an important role in the occurrence and development of squamous cell carcinoma of the tongue.展开更多
目的探讨运用RNA干扰技术沉默FAK基因表达对人舌鳞癌细胞株CAL-27增殖与迁移能力的影响。方法使用si RNA干扰技术瞬时转染构建FAK si RNA。将实验细胞分为空白对照组、阴性对照组和实验组。运用q PCR和Western blotting法检测FAK m RNA...目的探讨运用RNA干扰技术沉默FAK基因表达对人舌鳞癌细胞株CAL-27增殖与迁移能力的影响。方法使用si RNA干扰技术瞬时转染构建FAK si RNA。将实验细胞分为空白对照组、阴性对照组和实验组。运用q PCR和Western blotting法检测FAK m RNA和蛋白的表达情况,MTT法检测细胞的增殖情况,Transwell小室法研究细胞的迁移能力。结果 q PCR和Western blotting实验结果显示,实验组细胞FAK m RNA和蛋白表达量明显低于空白对照组和阴性对照组(Pm RNA<0.01,P蛋白<0.05);MTT实验结果显示在48和72 h时,空白对照组和阴性对照组的吸光度值均明显高于实验组(P<0.01);Transwell实验结果显示实验组穿膜迁移细胞数明显低于空白对照组和阴性对照组(P<0.05)。结论沉默FAK基因表达可有效抑制人舌鳞癌CAL-27细胞的增殖和迁移能力。展开更多
基金Supported by Key Disciplines Group Construetion Project of Pudong Health Bureau of Shanghai(Grant No.PWZxk2010-12)
文摘Objective:To investigate the effects of miR-25-3p on the occurrence,development and proliferation of tongue squamous cell carcinoma cells.Methods:To establish tongue squamous cell carcinoma cell line Tca8113 that stably and highly express miR-25-3p using recombinant reiroviral vector-mediated gene transfer method.The proliferation of transfected Tca8113 was detected by thiazolyl blue tetrazolium bromide(MTT)and cell colony formation assays.eyclnD1,p21^(cipt)and p27^(kipt)mRNA expressions in the transfected Tca-8113 were detected by quantitative PCR.cyclinD1,p21^(cipt),p27^(kipt),AKT,p-AKT,FOXOt and p-FOX01 expressions in the transfected Tca8113 were detected by western blot analysis.In addition,miR-25-3p expression in the tongue squamous cell carcinoma cell line and tissue specimen was also detected by quantitative PCR.Results:Quantitative PCR showed that mitt-25-3p expression in the tongue squamous cell carcinoma cell lines and tissue specimen was significantly lower than that in the adjacent tissue.MTT and cell colony formation assays showed that after miR-25-3p overexpression,the proliferation of transfected Tca8113 was obviously attenuated.Western blot analysis and quantitative PCR showed that after miR-25-3p overexpression.p21^(cipt)and p27^(kipt)expressions were upregulated,while cyclinD1,AKT,FOXO1 expressions were downregulated,and AKT and FOXO1 phosphorylation was inactivated in the transfected Tca8113 cells.Conclusions:MiR-25-3p inhibited the proliferation of tongue squamous cell carcinoma cells and regulated cell cycle-related protein expression,playing an important role in the occurrence and development of squamous cell carcinoma of the tongue.
文摘目的探讨运用RNA干扰技术沉默FAK基因表达对人舌鳞癌细胞株CAL-27增殖与迁移能力的影响。方法使用si RNA干扰技术瞬时转染构建FAK si RNA。将实验细胞分为空白对照组、阴性对照组和实验组。运用q PCR和Western blotting法检测FAK m RNA和蛋白的表达情况,MTT法检测细胞的增殖情况,Transwell小室法研究细胞的迁移能力。结果 q PCR和Western blotting实验结果显示,实验组细胞FAK m RNA和蛋白表达量明显低于空白对照组和阴性对照组(Pm RNA<0.01,P蛋白<0.05);MTT实验结果显示在48和72 h时,空白对照组和阴性对照组的吸光度值均明显高于实验组(P<0.01);Transwell实验结果显示实验组穿膜迁移细胞数明显低于空白对照组和阴性对照组(P<0.05)。结论沉默FAK基因表达可有效抑制人舌鳞癌CAL-27细胞的增殖和迁移能力。
