【摘要】 目的检测胰腺癌组织中的p21ras和血管内皮生长因子(VEGF)蛋白表达情况,并探讨其与肿瘤临床病理因素的关系。方法选择48例病理证实为胰腺导管腺癌患者的手术切除石蜡切块标本,应用EnVision显色系统免疫组织化学方法进行p21ras和VEGF蛋白检测。结果胰腺癌组织中p21ras蛋白表达率为60·4%,其表达与胰腺癌患者年龄、性别、组织学类型、肿瘤大小、淋巴结转移及肿瘤分期无明显关系;VEGF蛋白表达率为64·6%,其表达与肿瘤大小及TNM分期有关。p21ras表达阳性组的VEGF表达明显高于其阴性组(P<0·05)。结论p21ras和VEGF在胰腺癌组织中均呈高表达,p21ras表达与VEGF蛋白表达有相关性,提示K-ras基因突变可上调VEGF表达。更多还原

【Abstract】 Objective To investigate the expression of p21ras and vascular endothelial growth factor (VEGF) in pancreatic carcinoma, and to elucidate its clinicopathological implication. Methods Expressions of p21ras and VEGF were immunohistochemically examined in 48 cases of pancreatic carcinomas. Results The expressions of p21ras and VEGF in pancreatic carcinomas were 60.40% and 64.58%, respectively, and they were significantly higher than those in adjacent tissues (P<0.05 for p21ras and P<0.01 for VEGF). A statistical significant correlation was found between the expressions of p21ras and VEGF (P<0.05). Conclusion The expressions of p21ras and VEGF in pancreatic carcinoma are higher than those in adjacent tissue. The mutation of K-ras gene seems to up-regulate the VEGF expression.更多还原