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血管内皮生长因子在睾丸生殖细胞肿瘤中的表达

The Expression of Vascular Endothel ial Growth Factor in Testicular Germ Cell Tumors

  • 摘要: 目的 探讨血管内皮生长因子(VEGF)表达及微血管计数与睾丸生殖细胞肿瘤(TGCT)临床病理特征的关系。方法 42例睾丸生殖细胞肿瘤和10例对照(无肿瘤浸润的去势睾丸组织)标本取自武汉大学人民医院病理科。应用免疫组化方法检测标本q-血管内皮生长因子的表达及微血管计数(MVC),HE染色显示脉管(血管或淋巴管)浸润。结果 肿瘤组VEGF阳性表达率及MVC均显著高于对照组。VEGF表达在各病理类型组间无显著差别(P〉0.05);随临床分期的进展VEGF表达增强(P〈0.001)。Ⅲ期肿瘤的MVC分别显著高于Ⅰ、Ⅱ期。VEGF表达与MVC之间呈较强正相关(r=0.675)。脉管浸润率随临床分期的增加而增加。但多因素分析显示仅VEGF表达与临床分期相关。结论 血管生成与TGCT的转移相关。VEGF在调节TGCT的血管生成及促进TGCT的临床进展方面可能发挥着重要作用,VEGF可作为反映TCK2T生物学行为的客观指标。

     

    Abstract: Objective  To investigate expression feature of vascular endothelial growth factor (VEGF) in testicular germ cell tumors ( TGCT) and its clinical significance. Methods  Employing immunohistochemistry, VEGF expression and microvessel count s (MVC) were studied on slides of paraffin2embeded specimens of 42 cases of TGCT with diverse pathological types and stages. Vascular invasion was also detected by hematoxylin and eosin ( HE) stains. Results  VEGF expression and MVC were both significantly higher in tumor group. The expression levels of VEGF rose with clinical stages development ( P <0. 001), but did not differ among various pathologic types ( P > 0. 05) . MVC in stage C was significantly higher than in stage A and B, respectively. VEGF expression was markedly correlated with MVC ( r =0. 675, P < 0. 001) . Vascular invasion rate was higher in clinical progressed stages. But when using multiple regression analysis, only VEGF expression revealed a correlation with clinical stages. Conclusion  This study suggested that VEGF performed an important role in angiogenesis and might promote the development of TGCT. VEGF would be a potent indicator for biological characteristic of TGCT.

     

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