hh信号通路在口腔鳞状细胞癌中的激活及意义
Keywords: 口腔鳞状细胞癌,sonichedgehog,patched,gli-1
Abstract:
?目的:研究口腔鳞状细胞癌中shh、ptch、gli-1在基因及蛋白水平的表达,并探讨其阳性表达与口腔鳞状细胞癌生物学特性之间的关系。方法:采用免疫组织化学方法分别检测40例口腔鳞癌和30例正常口腔黏膜中shh、ptch、gli-1蛋白的表达;rt-pcr法检测10例口腔鳞癌组织及5例正常口腔黏膜组织中shh、gli-1和ptchmrna的表达。结果:免疫组织化学结果显示,shh、ptch和gli-1蛋白在口腔鳞癌中阳性表达率分别为62.5%、60.0%和65.0%,在正常口腔黏膜中3种蛋白均不表达。非参数统计分析示,shh及gli-1的阳性表达与肿瘤的大小、淋巴结转移及临床分期相关(p<0.05),ptch蛋白的表达与淋巴结转移呈显著正相关(p<0.05)。rt-pcr结果显示,shh、ptch、gli-1mrna在口腔鳞癌组织中的阳性表达分别为60%、50%、70%,明显高于正常口腔黏膜,差异有统计学意义(p<0.05)。结论:hh信号通路在口腔鳞状细胞癌组织中被激活并与口腔鳞癌的发生、发展、转移关系密切。
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