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lncRNAs as Potential Targets in Small Cell Lung Cancer: MYC -dependent Regulation

Onur Tokgun1,2, Pervin E Tokgun1, Kubilay Inci2

  • 1Department of Medical Genetics, Faculty of Medicine, Pamukkale University, Denizli, Turkey

Anti-Cancer Agents in Medicinal Chemistry
|July 24, 2020
PubMed
Abstract

Insights

This study investigated MYC-regulated long non-coding RNAs (lncRNAs) in Small Cell Lung Cancer (SCLC). Researchers found specific lncRNAs that correlate with MYC expression, offering potential new therapeutic targets for this aggressive cancer.

Area of Science:

  • Oncology
  • Molecular Biology
  • Gene Regulation

Background:

  • Small Cell Lung Cancer (SCLC) is an aggressive malignancy with MYC oncogene amplification in 20% of cases.
  • MYC oncogenes and their regulated genes are critical therapeutic targets in SCLC.
  • Dysregulated long non-coding RNA (lncRNA) expression is observed in various cancers.

Purpose of the Study:

  • To investigate lncRNA profiles associated with MYC expression levels in SCLC.
  • To identify MYC-regulated lncRNAs as potential therapeutic targets for SCLC.

Main Methods:

  • Constructed lentiviral vectors for MYC overexpression and inhibition in SCLC cell lines.
  • Suppressed MYC expression using shRNA in H82 and N417 cells; overexpressed MYC in H345 cells.
  • Evaluated 91 lncRNAs using qRT-PCR on total RNA samples.

Main Results:

  • MYC is essential for the growth of N417, H82, and H345 SCLC cells.
  • MYC regulates genes involved in invasion, stemness, apoptosis, and cell cycle.
  • Identified specific lncRNAs (e.g., HOTAIR, PVT1) with expression parallel to MYC, and others (e.g., Malat1, Neat1) inversely correlated.

Conclusions:

  • MYC-regulated genes are important therapeutic targets for SCLC.
  • Identifying MYC-regulated lncRNAs is crucial for developing novel SCLC therapeutic strategies.
Keywords:
MYCSCLCinhibitionlentiviral vectorlncRNAoverexpression

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