食管鳞癌组织中nrf2和bcl-2蛋白表达的关系及其临床意义
Keywords: nrf2,bcl-2,食管鳞癌,免疫组织化学,蛋白印迹
Abstract:
?目的:?探讨核因子e2相关因子2(nrf2)及bcl-2蛋白在食管鳞癌组织中的表达及其与临床病理指标之间的关系。方法:采用免疫组织化学方法(sp法)和western?blot技术分别检测85例食管鳞癌组织及距食管癌组织边缘5?cm以上的35例正常食管组织中nrf2及bcl-2蛋白的表达,并分析两者之间的相关性及其与食管癌临床病理指标之间的关系。结果:免疫组织化学结果显示,nrf2和bcl-2蛋白在食管鳞癌组织的表达阳性率(分别为83.5%和72.9%)均较正常食管组织(分别为14.2%和5.7%)明显升高(p<0.01);western?blot结果显示,nrf2和bcl-2蛋白在食管鳞癌组织相对表达量(分别为0.855±0.078和0.801±0.075)均较正常食管组织(分别为0.135±0.011和0.173±0.040)明显升高(p<0.01)。nrf2和bcl-2蛋白表达均与食管鳞癌组织中的病变长度、浸润深度、分化程度及淋巴结转移密切相关(p<0.05),但与食管鳞癌患者病变部位及病变类型无显著相关(p>0.05)。spearman相关分析显示:食管鳞癌组织中nrf2与bcl-2蛋白表达呈显著正相关(r=0.515,p<0.01)。结论:nrf2和bcl-2的表达可以作为判断食管鳞癌恶性潜能的重要生物学指标。
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