上皮间质转化标志物 Vimentin和 E-cadherin在颅咽管瘤中的表达及其临床意义

摘要

Objective To assess the different protein expressions of epithelial mesenchymal transition (EM T ) markers Vimentin and E‐cadherin in craniopharyngioma ,especially at the tumour invasive front ,and correlate the findings with clinicopathological fea‐tures and patient outcomes .Methods Forty‐two craniopharyngiomas were subjected to the detection of Vimentin and E‐cadherin by immunohistochemistry and double immunofluorescence staining .The relationships between expression of these markers and various clinico pathological indicators and clinical outcomes of these tumors were analyzed .Results There was statistically significant difference in the expression of Vimentin and E‐cadherin between adamantinomatous and papillary variants in whole tumor and at the tumor invasive front .The expression of Vimentin and E‐cadherin in whole tumor sections were associated with tumor recurrence , postoperative weight and hypothalamic disturbances ,and the expression of vimentin and E‐cadherin at the tumor invasive front were colligated with tumor recurrence ,postoperative weight and hypothalamic disturbances .Conclusion Our study exemplifies the po‐tential prognostic implications of Vimentin and E‐cadherin expression in craniopharyngioma .EM T may represent a crucial mecha‐nism in the progression of adamantinomatous craniopharyngioma .%目的：检测颅咽管瘤，特别是肿瘤正常组织交界处上皮间质转化（EM T ）相关蛋白（Vimentin、E‐cadherin）表达，联系临床病理和预后进行相关分析。方法采用免疫组织化学及免疫荧光双染检测42例颅咽管瘤中 Vimentin、E‐cadherin表达，联系临床病理特征和预后进行相关分析。结果肿瘤整体和肿瘤正常组织交界处，釉质上皮型和鳞状乳头型颅咽管瘤两亚型间Vimentin、E‐cadherin表达均有显著差别。整体范围内，Vimentin和E‐cadherin表达与肿瘤复发、术后体质量和下丘脑功能紊乱相关；肿瘤正常组织交界处，Vimentin和E‐cadherin表达与肿瘤复发、术后体质量和下丘脑功能紊乱相关。结论颅咽管瘤组织中Vimentin、E‐cadherin表达与肿瘤预后相关；EM T有可能是影响釉质上皮型颅咽管瘤进程的重要机制之一。