The Key microRNAs Regulated the Development of Non-small Cell Lung Cancer by Targeting TGF-β-induced

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Updated: Jan 26, 2026

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Gang Chen1, Bo Ye2

  • 1Department of General Surgery, Deqing People's Hospital, Huzhou 313200, China.

Combinatorial Chemistry & High Throughput Screening
|April 11, 2019
PubMed
Abstract

Insights

MicroRNA-330-3p and microRNA-205 are key players in Non-Small Cell Lung Cancer (NSCLC) development. Upregulated miR-330-3p promotes metastasis by enhancing EMT, while downregulated miR-205 restrains NSCLC by suppressing EMT.

Area of Science:

  • Oncology
  • Molecular Biology
  • Gene Regulation

Background:

  • Epithelial-to-Mesenchymal Transition (EMT) is crucial in Non-Small Cell Lung Cancer (NSCLC) development.
  • MicroRNA (miRNA) expression changes regulate EMT, but specific key miRNAs in NSCLC canceration remain unclear.

Purpose of the Study:

  • Identify the most significantly altered miRNAs during NSCLC canceration.
  • Investigate the role of these miRNAs in tumor development and EMT.

Main Methods:

  • Analyzed miRNA expression in NSCLC tissues and cell lines.
  • Utilized miRNA mimics and inhibitors in NSCLC cells with TGF-β stimulation.
  • Assessed effects on cell migration, invasion, and EMT.

Main Results:

  • MiR-330-3p was significantly upregulated, and miR-205 was significantly downregulated in NSCLC.
  • Inhibition of miR-330-3p and restoration of miR-205 reduced NCIH1975 cell migration and invasion.
  • These miRNAs modulated TGF-β-induced EMT in NSCLC cells.

Conclusions:

  • MiR-330-3p and miR-205 exhibit the most significant changes during NSCLC canceration.
  • MiR-330-3p promotes NSCLC invasion and metastasis via EMT.
  • MiR-205 suppresses NSCLC progression by inhibiting EMT.
Keywords:
Non-small cell lung cancerTGF-βepithelial-to-mesenchymal transitionmetastasismiRNAmiRNAs expression.

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