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miR-494下调Sox9的表达对骨肉瘤细胞MG-63增殖和侵袭的影响

李宝林, 邓正华, 常欧, 曾章锐, 刘靳波

李宝林, 邓正华, 常欧, 曾章锐, 刘靳波. miR-494下调Sox9的表达对骨肉瘤细胞MG-63增殖和侵袭的影响[J]. 肿瘤防治研究, 2017, 44(2): 98-102. DOI: 10.3971/j.issn.1000-8578.2017.02.004
引用本文: 李宝林, 邓正华, 常欧, 曾章锐, 刘靳波. miR-494下调Sox9的表达对骨肉瘤细胞MG-63增殖和侵袭的影响[J]. 肿瘤防治研究, 2017, 44(2): 98-102. DOI: 10.3971/j.issn.1000-8578.2017.02.004
LI Baolin, DENG Zhenghua, CHANG Ou, ZENG Zhangrui, LIU Jinbo. miR-494 Inhibits Proliferation and Invasion of Osteosarcoma Cells MG-63 Through Downregulating Sox9 Expression[J]. Cancer Research on Prevention and Treatment, 2017, 44(2): 98-102. DOI: 10.3971/j.issn.1000-8578.2017.02.004
Citation: LI Baolin, DENG Zhenghua, CHANG Ou, ZENG Zhangrui, LIU Jinbo. miR-494 Inhibits Proliferation and Invasion of Osteosarcoma Cells MG-63 Through Downregulating Sox9 Expression[J]. Cancer Research on Prevention and Treatment, 2017, 44(2): 98-102. DOI: 10.3971/j.issn.1000-8578.2017.02.004

miR-494下调Sox9的表达对骨肉瘤细胞MG-63增殖和侵袭的影响

基金项目: 

2014年四川省科学技术厅科研专项基金 14JC0801

2016年泸州市科技局项目科研专项基金 15193

详细信息
    作者简介:

    李宝林(1986-),男,硕士,技师,主要从事miRNA在骨肉瘤发病机制中作用的研究

    通讯作者:

    刘靳波,E-mail:liujb7203@163.com

  • 中图分类号: R738.1

miR-494 Inhibits Proliferation and Invasion of Osteosarcoma Cells MG-63 Through Downregulating Sox9 Expression

  • 摘要:
    目的 

    探讨miR-494对人骨肉瘤细胞MG-63增殖与侵袭的影响,并验证Sox9是否为miR-494的靶基因。

    方法 

    过表达miR-494后,利用CCK-8、克隆形成实验检测MG-63细胞的增殖,利用Transwell实验检测细胞的侵袭能力。Western blot与荧光定量PCR检测Sox9蛋白与mRNA水平的表达。

    结果 

    MG-63细胞转染腺病毒miR-494后,miR-494表达明显升高(t=36.78, P=0.000),Ad-miR-494转染组MG-63细胞增殖(F=1.711, P=0.012)、克隆形成(F=2.742, P=0.019)和侵袭能力(F=1.653, P=0.006)较Ad-GFP组下降。过表达miR-494后,Sox9蛋白(F=5.827, P=0.021)和mRNA表达水平(F=5.827, P=0.021)下降。而Sox9的下调使MG-63细胞增殖(t=27.54, P=0.042)、克隆形成(t=29.64, P= 0.026)和侵袭能力(t=32.48, P=0.016)下降。

    结论 

    miR-494通过Sox9抑制骨肉瘤细胞MG-63的增殖与侵袭。

     

    Abstract:
    Objective 

    To investigate the impact of miR-494 on the proliferation and invasion of human osteosarcoma cells MG-63 and to confirm whether Sox9 is the target gene of miR-494.

    Methods 

    MG-63 cells were transfected with recombinant adenovirus miR-494(Ad-miR-494), CCK-8 and clone formation experiments were employed to determine the proliferation ability of transfected MG-63 cells. Cells invasion abilities were determined by Transwell assay. Real-time PCR was used to analyze the expression of Sox9 mRNA and protein level to confirmthe adenovirus miR-494 expression in MG-63 cells. The protein expression of Sox9 was analyzed by Western blot.

    Results 

    The expression of miR-494 was increased obviously (t=36.78, P=0.000) in MG-63 cells which were transfected with Ad-miR-494. CCK-8, clone formation and Transwell experiment results revealed that the proliferation (F=1.711, P=0.012), clone formation (F=2.742, P=0.019) and invasion (F=1.653, P=0.006) abilities of MG-63 cells were markedly inhibited by the overexpression of miR-494. In addition, we observed the decreased Sox9 protein (F=5.827, P=0.021) and mRNA expression (F=5.827, P=0.021) in MG-63 cells which were transfected with Ad-miR-494. And the proliferation (t=27.54, P=0.042), lone formation (t=29.64, P=0.026) and invasion (t=32.48, P=0.016) abilities of MG-63 cells were markedly inhibited by the decreases of Sox9 expression.

    Conclusion 

    MG-63 cells proliferation and invasion abilities are suppressed by miR-494, and this process is potentially achieved via suppressing Sox9 expression.

     

  • 图  1   MG-63细胞中过表达miR-494腺病毒

    Figure  1   Ad-miR-494 overexpressed in MG-63 cells

    图  2   过表达miR-494对骨肉瘤细胞MG-63体外增殖的影响

    Figure  2   Effects of miR-494 overexpression on proliferation of osteosarcoma cancer cell line MG-63 in vitro

    图  3   Transwell检测miR-494对MG-63细胞侵袭的影响

    Figure  3   Effects of miR-494 on MG-63 cells invasion by Transwell assay

    图  4   miR-494对Sox9蛋白和mRNA水平的影响

    Figure  4   Effect of miR-494 on Sox9 protein and mRNA levels

    图  5   Sox9对骨肉瘤细胞MG-63增殖和侵袭的影响

    Figure  5   Effect of Sox9 on proliferation and invasion abilities of MG-63 cells

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出版历程
  • 收稿日期:  2016-06-11
  • 修回日期:  2016-10-24
  • 网络出版日期:  2024-01-12
  • 刊出日期:  2017-02-24

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