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MicroRNA-331-3p inhibits proliferation and metastasis of ovarian cancer by targeting RCC2

Gulimire Buranjiang1, Reziya Kuerban2, Ailikemu Abuduwanke3

  • 1Department of Gynecologic Oncology Radiation Therapy (Ward II), Xinjiang Medical University Third Clinical Medical College (Affiliated Tumor Hospital), Urumqi, Xinjiang, China.

Archives of Medical Science : AMS
|November 22, 2019
PubMed
Abstract

Insights

MicroRNA-331-3p (miR-331-3p) is downregulated in ovarian cancer. Restoring miR-331-3p inhibits cancer cell proliferation, migration, and invasion by targeting RCC2, offering potential therapeutic strategies.

Area of Science:

  • Oncology
  • Molecular Biology
  • Gene Regulation

Background:

  • Epithelial ovarian carcinoma (EOC) is a highly lethal gynecologic malignancy with poor survival rates.
  • MicroRNAs play critical roles in ovarian cancer progression by regulating oncogenes and tumor suppressor genes.

Purpose of the Study:

  • To investigate the role of microRNA-331-3p (miR-331-3p) in epithelial ovarian carcinoma.
  • To identify the molecular targets of miR-331-3p in ovarian cancer cells.

Main Methods:

  • Quantitative reverse transcription-PCR to assess miR-331-3p expression levels.
  • Cell Counting Kit-8, wound-healing, and transwell assays to evaluate cell proliferation, motility, migration, and invasion.
  • Luciferase assays and Western blotting to confirm direct targeting of RCC2 by miR-331-3p and assess protein expression.

Main Results:

  • miR-331-3p expression is significantly reduced in ovarian cancer cell lines.
  • Overexpression of miR-331-3p suppressed ovarian cancer cell proliferation, migration, and invasion.
  • Regulator of chromosome condensation 2 (RCC2) was identified as a direct target of miR-331-3p, and its expression was negatively regulated by miR-331-3p.

Conclusions:

  • miR-331-3p inhibits ovarian cancer cell proliferation, migration, and invasion by directly targeting RCC2.
  • miR-331-3p and its regulatory pathway represent potential therapeutic targets for ovarian cancer treatment.
Keywords:
RCC2cell proliferationmetastasismiR-331-3pmigrationovarian cancer

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