[miR-182 promotes cell proliferation of cervical cancer cells by targeting adenomatous polyposis coli (APC) gene]

Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi. 2018 Feb;34(2):148-153.
[Article in Chinese]

Abstract

Objective To investigate the role and mechanism of microRNA-182 (miR-182) in the proliferation of cervical cancer cells. Methods With liposome-mediated transient transfection method, the level of miR-182 in HeLa and SiHa cells was increased or decreased. CCK-8 assay and colony formation assay were used to observe the effect of miR-182 on the proliferation of cervical cancer cells. Using bioinformatics predictions, real-time quantitative PCR, and dual luciferase reporter assay, we clarified the role of miR-182 in posttranscriptional regulation of adenomatous polyposis coli (APC) gene and its effect on the downstream molecules (c-Myc and cyclin D1) of Wnt singling pathway. Results Up-regulation of miR-182 significantly promoted the proliferation of cervical cancer cells, while down-regulation of miR-182 significantly inhibited the proliferation of cervical cancer cells. Over-expression of miR-182 inhibited the expression of APC gene in cervical cancer cells and the regulation of miR-182 affected the expression of canonical Wnt signaling pathway downstream molecules in cervical cancer cells. Conclusion The miR-182 stimulates canonical Wnt signaling pathway by targeting APC gene and enhances the proliferation of cervical cancer cells.

MeSH terms

  • Adenomatous Polyposis Coli Protein / genetics*
  • Adenomatous Polyposis Coli Protein / metabolism
  • Cell Line, Tumor
  • Cell Proliferation*
  • Cyclin D1 / genetics
  • Cyclin D1 / metabolism
  • Female
  • Gene Expression Regulation, Neoplastic
  • Gene Targeting
  • HeLa Cells
  • Humans
  • MicroRNAs / genetics*
  • MicroRNAs / metabolism
  • Uterine Cervical Neoplasms / genetics*
  • Uterine Cervical Neoplasms / metabolism
  • Uterine Cervical Neoplasms / physiopathology
  • Wnt Signaling Pathway
  • beta Catenin / genetics
  • beta Catenin / metabolism

Substances

  • APC protein, human
  • Adenomatous Polyposis Coli Protein
  • CCND1 protein, human
  • MicroRNAs
  • Mirn182 microRNA, human
  • beta Catenin
  • Cyclin D1