Aquaporin1 在胶质瘤中的表达及其临床意义

Aquaporin1 expression in glioma patients and its potential function in glioma progression

  • 摘要: 目的:探讨水通道蛋白1(aquaporin 1,AQP 1)在胶质瘤中的表达情况及其与临床病理参数、预后的关系,观察AQP 1 对恶性胶质瘤细胞增殖、侵袭的影响。方法:采用免疫组织化学染色法检测135 例肿瘤组织中AQP 1 的表达情况,分析AQP 1 与胶质瘤临床病理特征的关系,使用临床资料完整的103 例胶质瘤标本分析AQP 1 与生存的关系。将AQP 1 连接至慢病毒表达质粒载体后感染恶性胶质瘤LN229 细胞,Westernblot检测目的蛋白的表达;MTT 实验和Transwell 小室实验分别检测胶质瘤细胞的增殖和侵袭能力。结果:AQP 1 的表达水平与胶质瘤的病理分级呈正相关,AQP 1 高表达与患者预后差相关(P < 0.05)。 过表达AQP 1 可增强胶质瘤细胞的增殖、侵袭能力(P < 0.05)。 结论:AQP 1 表达与胶质瘤进展密切相关,其表达上调可显著增强胶质瘤细胞的增殖和侵袭能力,有望为胶质瘤的临床检测及治疗提供新思路。

     

    Abstract: Objective:To explore the expression of aquaporin 1 (AQP 1) in human glioma tissues and its relationship with the clini -copathological parameters and prognosis of this tumor. This study also observed the function of AQP1 in the proliferation and invasion of LN229 glioblastoma cells. Methods:The expression of AQP1 in 135 cases of glioma was detected by immunohistochemical meth -od, and the correlation between AQP 1 and pathological features of glioma was analyzed. The relationship of AQP1 with survival was al-so investigated using 103 specimens with complete clinical data. AQP1 was successfully transfected into LN229 cells with lentiviral vector, and the expression of AQP 1 protein was tested by Western blot. Cell proliferation was detected by using methyl thiazolyl tetrazo-lium assay, whereas cell invasion was determined by Transwell assay. Results: The expression of AQP1 was positively correlated with pathological grading. High AQP1 expression was associated with poor prognosis ( P<0.05). Moreover, the overexpression of AQP1 can significantly increase the proliferation and invasion of LN 229 cells (P<0.05). Conclusion:AQP1 is closely associated with the progres -sion of glioma. Upregulation of the AQP 1 expression promoted the proliferation and metastasis of glioma cells. These findings indicat-ed that AQP 1 can function as a therapeutic target for glioma in future research.

     

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