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转染lncRNA Gm15638的小鼠肾小球系膜细胞中FN、Col Ⅰ表达变化

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摘要 目的观察转染长链非编码RNA(lncRNA)Gm15638的小鼠肾小球系膜细胞SV40-MES13中纤维化标志物纤维连接蛋白(FN)和Ⅰ型胶原蛋白(ColⅠ)的表达变化。方法采用PCR法扩增lncRNA Gm15638片段,并将其插入p CDH-CMV-MCS-EF1-cop GFP载体,构建重组慢病毒载体p CDH-Gm15638。用转染试剂将重组目的质粒p CDH-Gm15638与包装质粒ps PAX2和包膜质粒p MD2.G共同转染293T细胞,收集重组慢病毒悬液,测定病毒滴度。将SV40-MES13细胞分为实验组和对照组,分别转染p CDH-Gm15638和慢病毒空载体p CDH-Mock。转染48 h后采用real-time PCR法检测Gm15638验证p CDH-Gm15638转染情况;提取细胞总蛋白,采用Western blotting法检测FN、ColⅠ。结果双酶切鉴定和测序结果显示,重组慢病毒载体p CDH-Gm15638构建成功。通过三质粒包装获得重组慢病毒,测得病毒滴度约6×10^7efu/m L。实验组、对照组细胞中Gm15638相对表达量分别为867、1,两组相比,P〈0.05。实验组细胞中FN、ColⅠ相对表达量分别为0.739、1.08,对照组分别为0.48、0.845,两组相比,P均〈0.05。结论转染Gm15638的SV40-MES13细胞中纤维化标志物FN、ColⅠ表达水平下调。
出处 《山东医药》 CAS 北大核心 2016年第31期28-30,共3页 Shandong Medical Journal
基金 江苏省卫生厅科研项目(H201458)
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