邓小园,武向梅,刘革力.干扰Bmi-1表达对宫颈癌Hela细胞TGF-β/Smads通路基因表达的影响[J].中国肿瘤,2013,22(7):581-585. |
干扰Bmi-1表达对宫颈癌Hela细胞TGF-β/Smads通路基因表达的影响 |
Impact of Bmi RNAi on TGF-β/Smads Pathway in Hela cells |
投稿时间:2012-12-31 |
DOI:10.11735/j.issn.1004-0242.2013.07.A014 |
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中文关键词: Bmi-1基因 宫颈癌 RNA干扰 |
英文关键词:Bmi-1 gene cervical neoplasm RNA interference |
基金项目:教育部高等学校博士学科点专项科研基金(20125503110012);教育部高等学校博士学科点新教师基金项目(20115503120007);重庆市自然科学基金项目(cstc2011jjA10035) |
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中文摘要: |
摘 要:[目的] 干扰Bmi-1对siRNA转染宫颈癌细胞系Hela中TGF-β、Hey1、Hes1、Bmp7、Smad3、Casp3和Casp6基因的表达影响,为寻找宫颈癌中Bmi-1的靶基因奠定基础。[方法]将Bmi-1 siRNA转染Hela细胞,实时荧光定量RT-PCR方法检测转染前后Hela细胞中TGF-β、Hey1、Hes1、Bmp7、Smad3、Casp3和Casp6基因的表达变化,对有明显变化的基因用Western Blot在蛋白水平进一步验证。[结果] Hela细胞中 Bmi-1基因RNA干扰后,TGF-β表达上调,Smad3、Casp3和Casp6基因表达下调。[结论]沉默Bmi-1的表达可使宫颈癌细胞系Hela中TGF-β、Smad3、Casp3和Casp6的表达量均有不同程度的改变,Bmi-1基因在宫颈癌发生发展中可能与TGF-β/Smads信号通路有关。 |
英文摘要: |
Abstract:[Purpose] To evaluate the effect of Bmi RNAi on TGF-β,Hey1,Hes1,Bmp7,Smad3,Casp3 and Casp6 expressions in cervical cancer cell line Hela,in order to look for a basis for Bmi-1 targeted tumor gene in cervical cancer.[Methods] Hela cells were transfected with siRNA,then Real-time quantitative RT-PCR was used to detect the expression of TGF-β,Hey1,Hes1,Bmp7,Smad3,Casp3 and Casp6 in Hela cells. The genes with different expression after RNAi were validated at the protein level by Western blot.[Results] RNAi caused upregulation of TGF-β and downregulation of Smad3,Casp3 and Casp6 genes.[Conclusions] Bmi-1RNAi leads to change expression levels of TGF-β,Smad3,Casp3 and Casp6 in a definite level,It suggests Bmi-1 gene might play a role in carcinogensis for cervical cancer by acting on the TGF-β/Smads signaling pathway. |
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