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miR-4295 promotes cell proliferation and invasion in anaplastic thyroid carcinoma via CDKN1A

Mingchen Shao1, Yiwei Geng1, Peng Lu2

  • 1Oncology Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Laboratory of Tumor Biology, Zhengzhou University, Zhengzhou, China.

Biochemical and Biophysical Research Communications
|August 2, 2015
PubMed

Insights

MicroRNAs (miRNAs) promote anaplastic thyroid carcinoma (ATC) cell growth and invasion by targeting CDKN1A. Inhibiting miR-4295 could be a therapeutic strategy for ATC.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • MicroRNAs (miRNAs) are key regulators of gene expression implicated in cancer.
  • The specific role of miRNAs in anaplastic thyroid carcinoma (ATC) pathogenesis is not well understood.

Purpose of the Study:

  • To investigate the function of miR-4295 in anaplastic thyroid carcinoma (ATC).
  • To identify the target gene of miR-4295 and its role in ATC progression.

Main Methods:

  • Cell proliferation was assessed using CCK-8 assays.
  • Cell migration and invasion were evaluated via Transwell assays.
  • Target gene validation involved luciferase assays and Western blotting.

Main Results:

  • miR-4295 overexpression promoted ATC cell proliferation, migration, and invasion.
  • miR-4295 directly targeted and suppressed CDKN1A expression at the protein level.
  • Inhibiting miR-4295 significantly reduced ATC cell proliferation and invasion.

Conclusions:

  • miR-4295 promotes ATC progression by negatively regulating CDKN1A.
  • miR-4295 represents a potential therapeutic target for anaplastic thyroid carcinoma intervention.
Keywords:
Anaplastic thyroid carcinomaCDKN1AmiR-4295

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