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Study on the Function and Mechanism of miR-585-3p Inhibiting the Progression of Ovarian Cancer Cells by Targeting

Yiming Jia1, Jingru Li1, Jinfeng Wang1

  • 1Department of Gynecology, First Affiliated Hospital of Harbin Medical University, Harbin City, Heilongjiang Province 150001, China.

Analytical Cellular Pathology (Amsterdam)
|May 23, 2022
PubMed

Insights

MicroRNA-585-3p (miR-585-3p) is downregulated in ovarian cancer (OC). Restoring miR-585-3p levels inhibits OC cell proliferation and invasion by targeting FSCN1 and the MAPK pathway, suggesting its therapeutic potential.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Ovarian cancer (OC) is a leading cause of cancer death in women.
  • Dysregulated microRNA (miRNA) expression is implicated in various cancers, including OC.
  • The specific role of miR-585-3p in OC development requires further investigation.

Purpose of the Study:

  • To investigate the biological function and molecular mechanism of miR-585-3p in ovarian cancer.
  • To determine the expression levels of miR-585-3p in OC tissues and cells.
  • To identify target genes and signaling pathways regulated by miR-585-3p in OC.

Main Methods:

  • In vitro cell proliferation, invasion, and migration assays.
  • Bioinformatic screening of miR-585-3p target genes using miRDB.
  • Dual-luciferase reporter assays and Western blot analysis.
  • In vivo animal experiments to assess tumor growth and pathway modulation.

Main Results:

  • miR-585-3p expression is significantly downregulated in OC tissues and cells.
  • Overexpression of miR-585-3p suppressed OC cell proliferation, invasion, and migration.
  • FSCN1 was identified as a direct target of miR-585-3p, and its upregulation in OC was confirmed.
  • miR-585-3p inhibits ERK phosphorylation and blocks the MAPK signaling pathway by targeting FSCN1.
  • In vivo studies confirmed that miR-585-3p inhibits tumor growth via FSCN1 and the MAPK pathway.

Conclusions:

  • miR-585-3p functions as a tumor suppressor in ovarian cancer.
  • The miR-585-3p/FSCN1 axis regulates OC cell behavior and the MAPK signaling pathway.
  • miR-585-3p holds promise as a potential diagnostic biomarker and therapeutic target for ovarian cancer.

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