PTEN基因在脑胶质瘤中的表达及甲基化状态的研究
发布时间:2019-04-25 17:36
【摘要】:目的:通过研究不同级别脑胶质瘤细胞内PTEN蛋白的表达情况及其PTEN基因甲基化状态,探讨PTEN基因甲基化与脑胶质瘤之间的关系,希望为脑胶质瘤的早期诊断、预后判断等提供依据。 方法:24例脑胶质瘤的标本收集于中南大学湘雅三医院以及湖南省肿瘤医院神经外科,通过手术切除并被病理科证实。其中Ⅰ-Ⅱ级8例,Ⅱ级4例,Ⅲ级4例,Ⅳ级8例。Ⅰ-Ⅱ级归为低级别胶质瘤,III-IV级归为高级别胶质瘤。8例作为对照的非瘤正常脑组织,取自中南大学湘雅三医院神经外科脑挫裂伤行手术治疗后留取的失活脑组织。留取脑胶质瘤组织及正常脑组织先进行免疫组化染色。检测脑胶质瘤组织及正常脑组织PTEN蛋白表达,再进行脑胶质瘤组织及正常脑组织PTEN基因甲基化状态的研究。 结果:1.正常脑组织与低级别胶质瘤PTEN蛋白表达水平差异有统计学意义(P0.05);正常脑组织与高级别胶质瘤PTEN蛋白表达水平差异有统计学意义(P0.05);低级别胶质瘤与高级别胶质瘤PTEN蛋白表达水平差异有统计学意义(P0.05)。2.正常脑组织与低级别胶质瘤PTEN基因甲基化状态差异无统计学意义(P0.05);正常脑组织与高级别胶质瘤PTEN基因甲基化状态差异有统计学意义(PO.05);低级别胶质瘤与高级别胶质瘤PTEN基因甲基化状态差异无统计学意义(P0.05);正常脑组织和所有胶质瘤PTEN基因甲基化状态差异有统计学意义(P0.05)。 结论:1.PTEN基因甲基化可能参与了脑胶质瘤的恶变进程。2.PTEN基因甲基化可能成为判断脑胶质瘤的一个重要参考指标。图9幅,表3个,参考文献37篇。
[Abstract]:Objective: to study the expression of PTEN protein and the methylation status of PTEN gene in different grades of glioma cells, and to explore the relationship between PTEN gene methylation and glioma in order to be an early diagnosis of glioma. The prognosis and so on provide the basis. Methods: 24 cases of brain gliomas were collected from the neurosurgery department of Xiangya third Hospital of Central South University and Hunan Cancer Hospital. The specimens were resected and confirmed by the Department of Pathology. There were 8 cases of grade 鈪,
本文编号:2465324
[Abstract]:Objective: to study the expression of PTEN protein and the methylation status of PTEN gene in different grades of glioma cells, and to explore the relationship between PTEN gene methylation and glioma in order to be an early diagnosis of glioma. The prognosis and so on provide the basis. Methods: 24 cases of brain gliomas were collected from the neurosurgery department of Xiangya third Hospital of Central South University and Hunan Cancer Hospital. The specimens were resected and confirmed by the Department of Pathology. There were 8 cases of grade 鈪,
本文编号:2465324
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