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  1. Home
  3. C-myc Protein Expression Indicates Unfavorable Clinical Outcome In Surgically Resected Small Cell Lung Cancer.
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  3. C-myc Protein Expression Indicates Unfavorable Clinical Outcome In Surgically Resected Small Cell Lung Cancer.

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C-Myc protein expression indicates unfavorable clinical outcome in surgically resected small cell lung cancer.

Christian Lang1,2, Zsolt Megyesfalvi3,4,5, Andras Lantos6

  • 1Department of Thoracic Surgery; Comprehensive Cancer Center, Medical University of Vienna, Waehringer Guertel 18-20, Vienna, A-1090, Austria.

World Journal of Surgical Oncology
|February 18, 2024

View abstract on PubMed

Summary
This summary is machine-generated.

Myc family proteins are involved in small cell lung cancer (SCLC) progression. C-Myc expression in SCLC tumors independently predicts worse overall survival, highlighting its potential as a prognostic marker.

Keywords:
ImmunohistochemistryMolecular subtypesMyc familySmall cell lung cancer

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Area of Science:

  • Oncology
  • Molecular Biology
  • Cancer Research

Background:

  • Myc family proteins (C-Myc, L-Myc, N-Myc) play a role in small cell lung cancer (SCLC) evolution and progression.
  • These oncogenic proteins are potential therapeutic targets in SCLC.
  • Investigating their expression and prognostic significance is crucial for understanding SCLC.

Purpose of the Study:

  • To examine the expression patterns of C-Myc, L-Myc, and N-Myc in surgically resected SCLC tumors.
  • To determine the prognostic relevance of Myc family protein expression in SCLC patients.
  • To correlate Myc expression with SCLC molecular subtypes.

Main Methods:

  • Collected clinicopathological data and tissue specimens from 104 SCLC patients.
  • Utilized immunohistochemistry (IHC) to detect C-Myc, L-Myc, N-Myc, and SCLC molecular subtype markers (ASCL1, NEUROD1, POU2F3, YAP1).
  • Performed statistical analysis, including correlation and multivariate risk modeling.

    • Main Results:

    • C-Myc, L-Myc, and N-Myc were expressed in 48%, 63%, and 9% of SCLC specimens, respectively.
    • N-Myc expression correlated significantly with the POU2F3 molecular subtype.
    • C-Myc positive tumors were associated with significantly worse overall survival (OS) and identified as an independent prognosticator of impaired OS.

    Conclusions:

    • Myc family protein expression varies among SCLC patients.
    • C-Myc protein expression is an independent predictor of poorer survival outcomes in SCLC.
    • Further research is needed to explore Myc family members as prognostic and predictive markers in SCLC.