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Gab2在胶质瘤组织中的表达及对胶质瘤大鼠模型MMP-2、MMP-9的表达影响

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摘要 目的探讨Gab2在胶质瘤组织中的表达及对胶质瘤大鼠模型MMP-2、MMP-9表达的影响。方法荧光定量PCR检测40例胶质瘤和瘤旁组织中Gab2的m RNA表达;培养C6胶质瘤细胞,分为A:对照组;B:空载体组;C:Gab2-si RNA组,RT-PCR检测3组细胞Gab2的表达;大鼠注射胶质瘤细胞和Gab2-si RNA胶质瘤细胞,构建大鼠模型,检测注射两组细胞1、2、3周后大鼠肿瘤体积和肿瘤强化程度,RT-PCR检测注射两组细胞3周后大鼠MMP-2、MMP-9的m RNA和蛋白表达。结果胶质瘤组Gab2的表达显著高于瘤旁组织(P<0.01);Gab2-si RNA组Gab2蛋白表达显著低于对照组(P<0.01),空载体组Gab2蛋白表达与对照组差异不显著(P>0.05);第2周大鼠的肿瘤体积和强化程度显著高于第1周,第3周显著高于第2周(P<0.01);注射Gab2-si RNA胶质瘤组大鼠的肿瘤体积和肿瘤强化程度显著低于胶质瘤组(P<0.01),Gab2-si RNA胶质瘤组MMP-2、MMP-9的m RNA和蛋白表达显著低于胶质瘤组(P<0.01)。结论 Gab2在胶质瘤组织中高表达,能通过下调MMP-2、MMP-9的表达降低胶质瘤体积和肿瘤强化程度。
出处 《中国地方病防治》 CAS 北大核心 2016年第10期1101-1101,1103,共2页 Chinese Journal of Control of Endemic Diseases
基金 云南省自然科学基金资助项目(2010CD158)
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