Objective:To investigate the effects of Intron on the EMT capability of non-small cell lung cancer cell line PC-9.Methods:Firstly,using the psiCHECK-2 plasmid as a basic framework to construct the recombinant plasmid ...Objective:To investigate the effects of Intron on the EMT capability of non-small cell lung cancer cell line PC-9.Methods:Firstly,using the psiCHECK-2 plasmid as a basic framework to construct the recombinant plasmid of psiCHECK-2-Intron dual-luciferase reporter gene;secondly,the psiCHECK-2-Intron and psiCHECK-2 were transfected into PC-9 cells respectively.The migration and invasion abilities of PC-9 cells were analyzed by Matrigel assay.The expression changes of EMT related hallmarks,including N-cadherin,β-catenin and snail,were detected by qRT-PCR and Western Blotting.Results:Compared with the control group,the migration and invasion abilities of PC-9 cells in Intron group significantly decreased(p<0.001).The expression of N-cadherin,β-catenin and snail also down-regulated(p<0.001).Conclusion:The introns could inhibit the EMT of PC-9 cells.展开更多
目的探讨沉默纤维蛋白原样蛋白1(fibrinogen-like protein 1,FGL1)对人肺腺癌PC-9细胞多西他赛敏感性的影响。方法Western blot法检测人正常支气管上皮细胞株BEAS-2B及人肺腺癌细胞株PC-9中的FGL1蛋白表达情况。以siRNA沉默PC-9细胞株中...目的探讨沉默纤维蛋白原样蛋白1(fibrinogen-like protein 1,FGL1)对人肺腺癌PC-9细胞多西他赛敏感性的影响。方法Western blot法检测人正常支气管上皮细胞株BEAS-2B及人肺腺癌细胞株PC-9中的FGL1蛋白表达情况。以siRNA沉默PC-9细胞株中FGL1基因,CCK-8法检测沉默FGL1对PC-9细胞增殖的抑制作用及对多西他赛敏感性的影响。结果与BEAS-2B细胞株比较,FGL1在PC9细胞株中呈高表达,其蛋白相对表达量是BEAS-2B细胞株的6.5倍,差异具有显著性(P<0.01)。通过转染FGL1siRNA沉默FGL1可增强多西他赛对PC-9细胞增殖的抑制作用。与FGL1siNC组细胞相比,FGL1siRNA组PC-9细胞的IC50值明显降低,差异具有显著性(P<0.01)。结论特异性沉默FGL1基因可抑制人肺腺癌细胞PC-9中FGL1的表达,抑制PC-9细胞的增殖,提高对多西他赛的敏感性。展开更多
基金National Natural Science Foundation of China(No.81660474)。
文摘Objective:To investigate the effects of Intron on the EMT capability of non-small cell lung cancer cell line PC-9.Methods:Firstly,using the psiCHECK-2 plasmid as a basic framework to construct the recombinant plasmid of psiCHECK-2-Intron dual-luciferase reporter gene;secondly,the psiCHECK-2-Intron and psiCHECK-2 were transfected into PC-9 cells respectively.The migration and invasion abilities of PC-9 cells were analyzed by Matrigel assay.The expression changes of EMT related hallmarks,including N-cadherin,β-catenin and snail,were detected by qRT-PCR and Western Blotting.Results:Compared with the control group,the migration and invasion abilities of PC-9 cells in Intron group significantly decreased(p<0.001).The expression of N-cadherin,β-catenin and snail also down-regulated(p<0.001).Conclusion:The introns could inhibit the EMT of PC-9 cells.
文摘目的探讨沉默纤维蛋白原样蛋白1(fibrinogen-like protein 1,FGL1)对人肺腺癌PC-9细胞多西他赛敏感性的影响。方法Western blot法检测人正常支气管上皮细胞株BEAS-2B及人肺腺癌细胞株PC-9中的FGL1蛋白表达情况。以siRNA沉默PC-9细胞株中FGL1基因,CCK-8法检测沉默FGL1对PC-9细胞增殖的抑制作用及对多西他赛敏感性的影响。结果与BEAS-2B细胞株比较,FGL1在PC9细胞株中呈高表达,其蛋白相对表达量是BEAS-2B细胞株的6.5倍,差异具有显著性(P<0.01)。通过转染FGL1siRNA沉默FGL1可增强多西他赛对PC-9细胞增殖的抑制作用。与FGL1siNC组细胞相比,FGL1siRNA组PC-9细胞的IC50值明显降低,差异具有显著性(P<0.01)。结论特异性沉默FGL1基因可抑制人肺腺癌细胞PC-9中FGL1的表达,抑制PC-9细胞的增殖,提高对多西他赛的敏感性。