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-  2016 

Gli1与FoxM1在子宫颈癌组织和细胞中的表达及意义 Significance and Expression of Gli1 and FoxM1 in Cervical Cancer Cells in vitro and in vivo

Keywords: 宫颈癌,Hela细胞,Siha细胞,FoxM1,Gli1,Gli1质粒,Gli1 siRNA

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Abstract:

目的:了解宫颈癌组织和细胞中Gli1及FoxM1的表达及意义,并探究这二者的相关性,进而明确FoxM1是否为Gli1在Hh信号通路中的下游靶基因,从而为宫颈癌的分子靶向治疗提供依据。方法:通过免疫组化链霉素抗生物素蛋白-过氧化物酶(SP)法检测70例宫颈癌组织和10例正常宫颈组织中Gli1及FoxM1的表达;体外培养宫颈癌细胞系Hela、Siha,将两株细胞分别分为5组,分别下调和上调Gli1基因的表达后,应用逆转录(RT)-PCR法检测各组细胞中Gli1及FoxM1的mRNA表达量,并分析二者的相关性。结果:Gli1和FoxM1蛋白表达水平在宫颈癌组织中明显高于正常宫颈组织(P<0.05)。Gli1的表达在分化程度低的宫颈癌组织中较高(P=0.022),与宫颈癌的侵袭程度有关(P=0.005),在有淋巴结转移中更高(P=0.017);FoxM1的表达与宫颈癌的侵袭程度有关(P=0.011),与年龄相关(P=0.033)。Spearman秩相关检验提示,Gli1与FoxM1相关系数r=0.405(P<0.001),呈显著正相关;分别下调Hela细胞和Siha细胞中Gli1表达后,两细胞系中FoxM1mRNA表达量均明显降低,均呈现正显著相关(r=0.613,r=0.729,P<0.05);分别将Gli1过表达质粒导入Hela细胞和Siha细胞中,两细胞系中FoxM1mRNA表达量均明显增高,均呈现正显著相关(r=0.593,r=0.660,P<0.05)。结论:Gli1和FoxM1在宫颈癌组织中均高表达,且Gli1可调控宫颈癌细胞系Hela、Siha中FoxM1的表达,进而促进宫颈癌的发生发展

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