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Transcriptional deregulation underlying the pathogenesis of small cell lung cancer

Dong-Wook Kim1, Keun-Cheol Kim1,2, Kee-Beom Kim1

  • 1Department of Microbiology, Immunology, and Cancer Biology, The University of Virginia Cancer Center, University of Virginia, Charlottesville, VA, USA.

Translational Lung Cancer Research
|March 15, 2018
PubMed

Insights

Small cell lung cancer (SCLC) research reveals key gene alterations in transcription regulators and chromatin modifiers. Understanding these changes offers new insights into SCLC development and potential therapeutic strategies.

Area of Science:

  • Genomics
  • Molecular Biology
  • Oncology

Background:

  • Recurrent genetic alterations in transcription regulators and chromatin modifiers are significant in small cell lung cancer (SCLC).
  • Advances in SCLC models and analytical methods have improved understanding of transcriptional networks driving tumor development.

Purpose of the Study:

  • To review recent discoveries concerning the roles of tumor suppressors (RB, P53 families) and oncogenes (MYC family) in SCLC initiation.
  • To describe the function of lineage-specific factors in neuroendocrine cell differentiation and homeostasis.
  • To explore the impact of epigenetic alterations (NFIB, chromatin modifiers) on SCLC progression and chemoresistance.

Main Methods:

  • Literature review of recent discoveries in SCLC biology.
  • Analysis of genetic and epigenetic alterations.
  • Discussion of transcriptional networks and regulatory pathways.

Main Results:

  • Identification of critical roles for RB, P53, and MYC families in SCLC.
  • Elucidation of lineage-specific factors in neuroendocrine differentiation.
  • Highlighting the influence of epigenetic changes on malignant progression and chemoresistance.

Conclusions:

  • A model of SCLC transcriptional network suggests convergence on key regulatory regions.
  • Further validation and target gene characterization are crucial for SCLC biology insights.
  • These findings pave the way for novel SCLC therapeutic interventions.
Keywords:
chromatin modifiergenetically engineered mouse model (GEMM)small cell lung cancer (SCLC)transcription factor

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