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Influence of maspin overexpression on expressions of VEGF and Upa in hepatocarcinoma cell MHCC-97
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- Author:
- No author available
- Journal Title:
- JOURNAL OF THE FOURTH MILITARY MEDICAL UNIVERSITY
- Issue:
- 24
- DOI:
- 10.3321/j.issn:1000-2790.2008.24.009
- Key Word:
- maspin基因;血管内皮生长因子类;uPA;肝癌细胞株MHCC-97
Abstract： 目的:探讨过表达maspin基因对肝癌细胞株MHCC-97中VEGF和uPA表达的影响及意义.方法:构建maspin/pEFIRES-N表达质粒,重组质粒转染后,采用RT-PCR及Western Blot方法分别从mRNA和蛋白水平检测肝癌细胞株MHCC-97中maspin,VEGF和uPA转染前后的表达.结果:成功构建maspin/pEFIRES-N重组质粒,并稳定转染到肝癌细胞株MHCC-97中.比较maspin/pEFIRES-N组和pEFIRES-N组的肝癌细胞株MHCC-97中maspin,VEGF和uPA的表达,结果显示转染maspin基因后在肝癌细胞株MHCC-97中maspin的mRNA和蛋白表达明显增强,而VEGF,uPA的mRNA和蛋白表达明显减弱(P<0.05).结论:在肝癌细胞株MHCC-97中,maspin基因的过表达会降低VEGF和uPA的mRNA及蛋白表达,从而可能抑制新生血管形成、阻断纤溶酶原激活物调节uPA的活性,减少ECM的降解,阻止肿瘤细胞的转移.
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