Analysis of clinical significance of quantitative expression of VEGF mRNA and uPA mRNA in pancreatic cancer tissue
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摘要: 目的探讨胰腺癌组织中血管内皮生长因子(VEGF)mRNA、尿激酶型纤溶酶原激活物(uPA)mRNA定量表达的临床意义。方法自2008年1月至2011年12月于本科行胰头癌根治术的患者中筛选出经病理证实为导管腺癌的30例患者的完整资料,采用荧光定量PCR(qPCR)检测其胰腺癌组织及6例正常胰腺组织中VEGF mRNA、uPA mRNA定量表达,分析其与临床病理因素之间的关系。结果 VEGF mRNA、uPA mRNA的表达与胰腺癌的组织分化程度、神经侵犯有关。VEGF mRNA在淋巴结转移阳性组中的定量表达高于淋巴结转移阴性组,两组比较差异有统计学意义(t=20.007,P=0.000);uPA mRNA在直径≤2 cm的肿瘤组织中定量水平小于直径>2 cm的肿瘤组织,两组比较差异有统计学意义(t=7.539,P=0.000)。uPA mRNA在伴有十二指肠侵犯组中的定量表达高于无十二指肠侵犯组,两组比较差异有统计学意义(t=-2.089,P=0.037)。uPA mRNA在Ⅲ期肿瘤组织中的定量表达高于Ⅰ、Ⅱ期肿瘤组织中的定量表达,两组比较差异有统计学意义(t=-9.450,P=...Abstract: Objective To investigate the clinical significance of quantitative expression of vascular endothelial growth factor (VEGF) mRNA and urokinase- type plasminogen activator (uPA) mRNA in pancreatic cancer tissue.Methods A retrospective study was conducted on the complete data of 30 patients with a pathological diagnosis of duct adenocarcinoma who were selected from those treated by radical resection of pancreatic head carcinoma from January 2008 to December 2011.Real- time quantitative PCR was used to measure the quantitative expression of VEGF mRNA and uPA mRNA in the pancreatic cancer tissues of the 30 cases and the normal pancreatic tissues of 6 controls, and its relationship with clinicopathological factors was analyzed.Results The quantitative expression of VEGF mRNA and uPA mRNA was correlated with the histological differentiation and perineural invasion of pancreatic cancer.The quantitative expression of VEGF mRNA was significantly higher in patients with lymphatic metastasis than in those without lymphatic metastasis group (t = 20.007, P = 0.000) .The quantitative expression of uPA mRNA was significantly lower in the tumors with a diameter of ≤2 cm than in the tumors with a diameter of > 2 cm (t = 7.539, P = 0.000) .Patients with duodenal invasion had a significantly higher quantitative expression of uPA mRNA than those without duodenal invasion (t =- 2.089, P = 0.037) .The quantitative expression of uPA mRNA in stage III tumor tissues was significantly higher than that of uPA mRNA in stage I and II tumor tissues (t =- 9.450, P = 0.000) .There was a positive correlation between VEGF mRNA expression and uPA mRNA expression (r = 0.334, P = 0.000) .Conclusion The overexpression of VEGF mRNA and uPA mRNA in pancreatic cancer tissue may create an environment that enables the invasion by pancreatic cancer cells.
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