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miRNA-137在骨肉瘤中的作用及机制研究
被引:3
作者:

周强
论文数: 0 引用数: 0
h-index: 0
机构: 解放军第医院骨科

李颖
论文数: 0 引用数: 0
h-index: 0
机构: 解放军第医院骨科

张恩军
论文数: 0 引用数: 0
h-index: 0
机构: 解放军第医院骨科

刘琨
论文数: 0 引用数: 0
h-index: 0
机构: 解放军第医院骨科
机构:
[1] 解放军第医院骨科
来源:
关键词:
miRNA-137;
MG-63;
荧光素酶;
TWIST;
细胞活性;
D O I:
暂无
中图分类号:
R738 [运动系肿瘤];
学科分类号:
100402 [劳动卫生与环境卫生学];
摘要:
[目的]通过转染miRNA-137至人骨肉瘤细胞MG-63,观察细胞内TWIST蛋白含量变化及其对细胞增殖活性的影响以探讨miRNA-137在骨肉瘤中的作用及机制。[方法]Target Scan预测miRNA-137与TWIST结合靶位;PCR扩增TWIST基因3’UTR区并克隆至荧光素酶报告基因表达载体;化学法合成miRNA-137 mimics,miRNA-137 inhibitor及NC序列,与荧光素酶报告基因表达载体共转染293细胞,48 h后检测荧光素酶活性;转染miRNA-137至MG-63细胞,转染后48 h,Real Time-PCR检测转染后细胞内miRNA-137含量,Western-blot检测细胞中TWIST蛋白含量变化;转染后0~72 h,CCK-8检测肿瘤细胞增殖活性。[结果]证实了miRNA-137与其靶基因TWIST的结合位点;miRNA-137 mimics转染MG-63细胞,可明显抑制细胞内TWIST蛋白表达,与对照组比较,差异有统计学意义(P<0.05),而miRNA-137 inhibitor转染细胞后可明显增强胞内TWIST蛋白的表达,与对照组比较差异有统计学意义(P<0.05));miRNA-137 mimics可明显抑制MG-63细胞对数期增殖活性,而miRNA-137 inhibitor则使细胞增殖活性进一步增强,相同时间点与对照相比较,均有差异(P<0.05)。[结论]miRNA-137可以通过抑制其靶基因TWIST表达来抑制MG-63细胞增殖活性。
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页码:1608 / 1613
页数:6
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