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miR-454 performs tumor-promoting effects in oral squamous cell carcinoma via reducing NR3C2

Jing-Yu Guo1, Yu-Kun Wang1, Bo Lv2

  • 1Department of Stomatology, The Second Affiliated Hospital of Mudanjiang Medical University, Mudanjiang, China.

Journal of Oral Pathology & Medicine : Official Publication of the International Association of Oral Pathologists and the American Academy of Oral Pathology
|March 15, 2020
PubMed
Abstract

Insights

MicroRNA-454 (miR-454) promotes oral squamous cell carcinoma (OSCC) growth and metastasis by targeting nuclear receptor subfamily 3 group C member 2 (NR3C2). Silencing miR-454 inhibits OSCC progression, offering a potential therapeutic target.

Area of Science:

  • Molecular Oncology
  • Cancer Biology
  • MicroRNA Therapeutics

Background:

  • Aberrant microRNA (miRNA) expression is implicated in the development and progression of various cancers, including oral squamous cell carcinoma (OSCC).
  • Understanding the specific roles of miRNAs and their targets is crucial for developing novel cancer therapies.

Purpose of the Study:

  • To investigate the functional role of miR-454 and its target, nuclear receptor subfamily 3 group C member 2 (NR3C2), in the biological behaviors of OSCC cells.
  • To explore the potential of the miR-454/NR3C2 axis as a therapeutic target for OSCC.

Main Methods:

  • Analysis of miR-454 and NR3C2 expression in OSCC tissues using the GEO database.
  • In vitro functional assays (cell proliferation, colony formation, Transwell assays) in OSCC cell lines (CAL27, Tca-83) following modulation of miR-454 and NR3C2 expression.
  • Co-transfection experiments to elucidate the interaction between miR-454 and NR3C2.

Main Results:

  • miR-454 was upregulated, while NR3C2 was downregulated in OSCC tissues and cell lines.
  • Depletion of miR-454 significantly inhibited OSCC cell proliferation, colony formation, invasion, and migration.
  • Silencing NR3C2 partially reversed the inhibitory effects of miR-454 depletion, confirming NR3C2 as a target.

Conclusions:

  • miR-454 promotes OSCC cell growth, colony formation, invasion, and migration by targeting NR3C2.
  • The miR-454/NR3C2 pathway represents a promising novel target for the therapeutic intervention of oral squamous cell carcinoma.
Keywords:
NR3C2OSCCinvasionmiR-454proliferation

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