BAG-1在喉鳞癌组织中表达及其与p53基因和细胞凋亡的相关性
Expression of BAG-1 in Laryngeal Squamous Cell Carcinoma and Its Relationship with p53 Gene and Cell Apoptosis
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摘要: 目的最近研究发现在恶性肿瘤细胞中存在BAG-1蛋白表达水平和活性异常升高。本研究探讨在喉鳞状细胞癌(laryngealsquamouscellcaicinomas,LSCC)中BAG-1表达临床意义及其与p53、细胞凋亡的关系,以了解BAG-1与喉癌发生发展及预后的关系。方法运用免疫组化技术及TUNEL法检测68例LSCC组织及30例癌旁组织中BAG-1、p53蛋白的表达及癌细胞凋亡指数(apoptosisindex,AI),并应用计算机图像分析系统对其阳性表达进行定量分析。结果BAG-1在LSCC及癌旁组织中的阳性率分别为76.5%、16.7%,BAG-1蛋白在LSCC组织的表达较癌旁组织中的表达高(P<0.05),5年生存者BAG-1蛋白表达阳性率显著低于5年死亡者(P<0.05),且细胞核BAG-1阳性者较细胞浆阳性者预后更差(P<0.05);BAG-1蛋白阳性组及BAG-1蛋白阴性组的p53蛋白阳性率差异无显著性(P>0.05);BAG-1阳性患者的AI均数显著低于阴性患者(P<0.01),且表达呈负相关(r=-0.602)。结论BAG-1可能在LSCC的细胞凋亡及肿瘤发生中起着重要作用,并对LSCC...Abstract: Objective Recent studies have shown that BAG-1 expression is frequently altered in many malignant cells. This study aimed to investigate the clinical significance of BAG-1 expression and its relationship with p53 gene and cell apoptosis in laryngeal squamous cell carcinoma (LSCC), and to further explore the relationship between the BAG-1 and the occurrence, development, prognosis in LSCC. Methods Using the method of immunohistochemical SP staining method examined the expression of BAG-1, p53 protein in 68 c...
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