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p53基因与PTEN基因共转染对膀胱癌T24细胞凋亡的影响 被引量:3

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摘要 目的探讨抑癌基因p53和PTEN基因共转染膀胱肿瘤T24细胞后对其凋亡的影响。方法将p53、PTEN基因以及p53联合PTEN基因分别转染到T24细胞;目的基因的表达采用RT-PCR法检测;细胞的生长抑制作用通过细胞集落形成实验进行测定;Western blotting法检测蛋白表达;AnnexinV-FITC/PI双染流式细胞术检测p53基因和PTEN基因对T24凋亡的影响。结果荧光显微镜下观察到p53、PTEN及两个基因同时在T24细胞系中成功表达;T24细胞的集落数量及大小均有不同程度的降低,以共转染组降低最为明显(P<0.05),Western blotting法检测共转染组蛋白表达水平明显高于PTEN组或p53组(P<0.05);共转染组凋亡率明显高于p53基因单转染组、PTEN基因单转染组以及空载体转染组(P<0.05)。结论 p53和PTEN基因均能诱导膀胱癌T24细胞的凋亡,且这两个基因具有协同作用。
出处 《解放军医学院学报》 CAS 2013年第8期886-889,共4页 Academic Journal of Chinese PLA Medical School
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