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MiR-655-3p inhibited proliferation and migration of ovarian cancer cells by targeting RAB1A

J-F Zha1, D-X Chen

  • 1Department of Gynecology and Obstetrics, The People's Hospital of China Three Gorges University, Yichang, China. 609715926@qq.com.

European Review for Medical and Pharmacological Sciences
|May 23, 2019
PubMed
Abstract

Insights

microRNA-655-3p (miR-655-3p) acts as a tumor suppressor in ovarian cancer (OC). It targets RAB1A, inhibiting OC cell proliferation and metastasis, offering a potential therapeutic strategy.

Area of Science:

  • Oncology
  • Molecular Biology
  • Biochemistry

Background:

  • Ovarian cancer (OC) remains a leading cause of cancer-related mortality in women.
  • Understanding the molecular mechanisms underlying OC development is crucial for identifying novel therapeutic targets.
  • MicroRNAs (miRNAs) have emerged as critical regulators in various cancers, including OC.

Purpose of the Study:

  • To investigate the role of microRNA-655-3p (miR-655-3p) in ovarian cancer pathogenesis.
  • To elucidate the molecular mechanism by which miR-655-3p influences OC development.
  • To explore the potential of miR-655-3p as a therapeutic agent for OC.

Main Methods:

  • Quantitative Reverse Transcription-Polymerase Chain Reaction (qRT-PCR) was used to assess miR-655-3p expression levels in OC tissues.
  • Bioinformatic tools predicted potential target genes of miR-655-3p, followed by validation using luciferase reporter assays and Western blotting.
  • In vitro experiments were conducted to evaluate the effects of miR-655-3p on SKOV3 ovarian cancer cells, focusing on proliferation, metastasis, and epithelial-mesenchymal transition (EMT).

Main Results:

  • miR-655-3p expression was found to be significantly downregulated in OC tissues compared to normal tissues.
  • Ras-related protein Rab-1A (RAB1A) was identified as a direct target of miR-655-3p and was negatively regulated by it.
  • The miR-655-3p/RAB1A axis was shown to suppress ovarian cancer cell proliferation, inhibit metastasis, and reduce EMT activation.

Conclusions:

  • miR-655-3p functions as a tumor suppressor in ovarian cancer.
  • Targeting the miR-655-3p/RAB1A pathway offers a promising therapeutic strategy for OC.
  • This study provides a novel experimental basis for the development of miR-655-3p-based therapies for ovarian cancer.

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