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LncRNA GAS5 suppresses ovarian cancer by inducing inflammasome formation

Jie Li1, Chen Yang2, Yinguang Li3

  • 1Department of Gynecology, The Eastern Hospital of the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510700, China.

Bioscience Reports
|December 13, 2017
PubMed
Abstract

Insights

Long non-coding RNA GAS5 (lncGAS5) acts as a tumor suppressor in ovarian cancer. Reduced lncGAS5 expression promotes cancer growth and hinders apoptosis, suggesting its potential as a diagnostic and therapeutic target.

Area of Science:

  • Molecular Oncology
  • RNA Biology
  • Cancer Research

Background:

  • Long non-coding RNAs (lncRNAs) play critical roles in cellular processes.
  • The specific function of lncRNA GAS5 in ovarian cancer pathogenesis is not well understood.

Purpose of the Study:

  • To investigate the role and clinical significance of lncRNA GAS5 in ovarian cancer development.
  • To elucidate the underlying cellular mechanisms influenced by lncGAS5 in ovarian cancer.

Main Methods:

  • Quantitative real-time PCR to assess lncGAS5 expression in ovarian cancer tissues.
  • Cell proliferation (CCK-8), apoptosis (flow cytometry), and protein expression (Western blotting) assays.
  • In vivo tumorigenesis studies in nude mice and analysis of inflammatory cytokines via ELISA.

Main Results:

  • lncRNA GAS5 expression was significantly downregulated in ovarian cancer tissues.
  • Decreased lncGAS5 levels correlated with increased cell proliferation, colony formation, and reduced apoptosis.
  • Overexpression of lncGAS5 inhibited ovarian cancer cell proliferation and induced apoptosis, linked to inflammasome and pyroptosis pathways.

Conclusions:

  • lncRNA GAS5 functions as a tumor suppressor in ovarian cancer.
  • lncGAS5 holds potential as a biomarker for diagnosis and a therapeutic target for ovarian cancer treatment.
Keywords:
apoptosiscell proliferationgrowth arrest-specific 5inflammasomelong non-coding RNAovarian cancer

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