基础医学与临床 ›› 2021, Vol. 41 ›› Issue (4): 495-500.

• 研究论文 • 上一篇    下一篇

过表达RNF43抑制肾透明细胞癌细胞系786-O增殖、迁移与侵袭

孙志超1, 王秀芝2, 杨舒慧1, 浦洋1*   

  1. 1.中国医学科学院基础医学研究所 北京协和医学院基础学院 生理学系,北京 100005;
    2.中国科学院北京基因组研究所(国家生物信息中心) 精准医学重点实验室,北京 100020
  • 收稿日期:2020-11-27 修回日期:2021-01-12 出版日期:2021-04-05 发布日期:2021-04-05
  • 通讯作者: *puyang_py@163.com
  • 基金资助:
    国家自然科学基金(31700785,81872287)

RNF43 over-expression inhibits the proliferation,migration and invasion of clear cell renal cell carcinoma cell line 786-O

SUN Zhi-chao1, WANG Xiu-zhi2, YANG Shu-hui1, PU Yang1*   

  1. 1. Department of Physiology,Institute of Basic Medical Sciences CAMS,School of Basic Medicine PUMC,Beijing 100005;
    2. Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics Chinese Academy of Sciences/ China National Center for Bioinformation, Beijing 100020,China
  • Received:2020-11-27 Revised:2021-01-12 Online:2021-04-05 Published:2021-04-05
  • Contact: *puyang_py@163.com

摘要: 目的 探究RNF43对肾透明细胞癌(ccRCC)细胞系786-O的增殖、迁移及侵袭功能的影响及其潜在机制。方法 应用GEPIA网站分析人肾透明细胞癌样本的RNF43表达并预测RNF43对肾透明细胞癌患者预后的影响。将786-O细胞分为RNF43过表达组和Wnt通路抑制剂LGK974药物干预组。用Western blot及qPCR检测RNF43表达、Wnt/β-catenin通路蛋白的表达和LGK974抑制Wnt通路的效率;用CCK-8和克隆形成实验检测细胞增殖和克隆形成;用划痕实验和Transwell小室法检测细胞迁移及侵袭。结果 RNF43在人肾透明细胞癌组织中低表达且与预后不良相关。与对照组相比,过表达RNF43或使用LGK974处理后,786-O细胞中β-catenin和non-phospho (active) β-catenin蛋白质表达显著下降(P<0.05),且细胞增殖、迁移及侵袭能力显著减弱(P<0.001)。结论 RNF43能够通过下调Wnt/β-catenin通路来抑制786-O细胞的增殖、迁移及侵袭。

关键词: 肾透明细胞癌, RNF43, Wnt, LGK974

Abstract: Objective To assess RNF43 on the proliferation,migration,and invasion of clear cell renal cell carcinoma(ccRCC) cell line 786-O. Methods GEPIA website was visited to analyze RNF43 expression and perform prognosis analysis of the patients with clear cell renal cell carcinoma. RNF43 over-expressing 786-O was established by cationic transfection. Inhibitory efficiency of RNF43 over-expression and Wnt inhibitor LGK974 on 786-O cells were checked by Western blot or qPCR. The effects of RNF43 over-expression and LGK974 on cell proliferation,migration and invasion of 786-O were analyzed by CCK8,clone formation,wound healing assay and Transwell assay respectively. Results RNF43 was reduced in ccRCC tissues. Low expression was associated with poor prognosis. RNF43 over-expression or LGK974 treatment led to decreased expression of β-catenin and non-phospho (active) β-catenin in 786-O cells(P<0.05),along with significantly reduced cell proliferation,migration,and invasion(P<0.001). Conclusions RNF43 inhibits proliferation,migration and invasion of 786-O cells by suppressing Wnt/β-catenin pathway.

Key words: clear cell renal cell carcinoma, RNF43, Wnt, LGK974

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