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首页> 外文期刊>World Journal of Gastroenterology >Analysis of p53 and vascular endothelial growth factor expression in human gallbladder carcinoma for the determination of tumor vascularity.
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Analysis of p53 and vascular endothelial growth factor expression in human gallbladder carcinoma for the determination of tumor vascularity.

机译:分析人胆囊癌中p53和血管内皮生长因子的表达,以测定肿瘤的血管。

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AIM: To examine the expression of p53 and vascular endothelial growth factor (VEGF) as well as microvessel count (MVC) and to investigate the role of VEGF as an angiogenic marker and the possible role of p53 in the regulation of angiogenesis in human gallbladder carcinoma. METHODS: Surgically resected specimens of 49 gallbladder carcinomas were studied by immunohistochemical staining for p53 protein, VEGF, and factor VIII-related antigen. VEGF expression and mutant p53 expression were then correlated with Nevin stage, differentiation grade, MVC, and lymph node metastasis. RESULTS: Positive p53 protein and VEGF expressions were found in 61.2% and 63.3% of tumors, respectively. p53 and VEGF staining status was identical in 55.1% of tumors. The Nevin staging of p53- or VEGF-positive tumors was significantly later than that of negative tumors. The MVC in p53- or VEGF-positive tumors was significantly higher than that in negative tumors, and MVC in both p53- and VEGF-negative tumors was significantly lower than that in the other subgroups. CONCLUSION: Our findings suggest that p53-VEGF pathway can regulate tumor angiogenesis in human gallbladder carcinoma. Combined analysis of p53 and VEGF expression might be useful for predicting the tumor vascularity of gallbladder cancer.
机译:目的:研究p53和血管内皮生长因子(VEGF)的表达以及微血管计数(MVC),探讨VEGF作为血管生成标志物的作用以及p53在调控胆囊癌血管生成中的可能作用。方法:采用免疫组织化学方法对49例胆囊癌的手术切除标本进行了p53蛋白,VEGF和VIII因子相关抗原的染色研究。然后将VEGF表达和突变体p53表达与Nevin分期,分化等级,MVC和淋巴结转移相关。结果:分别在61.2%和63.3%的肿瘤中发现p53蛋白和VEGF的阳性表达。在55.1%的肿瘤中,p53和VEGF的染色状态相同。 p53或VEGF阳性肿瘤的Nevin分期显着晚于阴性肿瘤。 p53或VEGF阳性肿瘤中的MVC显着高于阴性肿瘤,而p53和VEGF阴性肿瘤中的MVC均显着低于其他亚组。结论:我们的发现提示p53-VEGF途径可以调节人胆囊癌的肿瘤血管生成。 p53和VEGF表达的联合分析可能有助于预测胆囊癌的肿瘤血管。

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