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  11. Unveiling Epithelial Plasticity Regulation In Lung Cancer: Exploring The Cross-talk Among Tks4 Scaffold Protein Partners

Unveiling epithelial plasticity regulation in lung cancer: Exploring the cross-talk among Tks4 scaffold protein partners

Loretta László1,2, Anita Kurilla1, Álmos Tilajka1,2

  • 1Institute of Molecular Life Sciences, HUN-REN Research Centre for Natural Sciences, 1117 Budapest, Hungary.

Molecular Biology of the Cell
|July 10, 2024

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View abstract on PubMed

Summary
This summary is machine-generated.

Tks4 protein loss promotes aggressive lung cancer by activating epithelial-mesenchymal transition (EMT). Lower Tks4 levels correlate with advanced stages, suggesting its potential as a prognostic biomarker in non-small cell lung cancer.

Area of Science:

  • Oncology
  • Cell Biology
  • Molecular Biology

Background:

  • Epithelial-to-mesenchymal transition (EMT) is crucial in lung cancer progression.
  • Tks4 is a recently identified regulator of EMT.

Purpose of the Study:

  • To investigate the role of Tks4 in non-small cell lung cancer (NSCLC).
  • To evaluate Tks4 as a potential prognostic biomarker for NSCLC.

Main Methods:

  • CRISPR/Cas9 gene editing to knockout Tks4.
  • Analysis of cell morphology, migration, and EMT marker expression.
  • Large-scale lung cancer database and patient tissue array analysis.
  • Tks4 interactome analysis using immunoprecipitation-mass spectrometry.

Main Results:

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  • Tks4 knockout cells displayed an EMT-like phenotype with altered morphology and increased EMT markers.
  • Reduced Tks4 mRNA levels were observed in more aggressive lung cancer stages.
  • CAPZA1 was identified as a novel Tks4-interacting protein.

    • Conclusions:

    • Tks4 deficiency disrupts protein interactions, leading to impaired actin cytoskeleton rearrangement and activation of EMT-like pathways.
    • These disruptions contribute to increased disease severity in lung cancer.
    • Tks4's role in regulating EMT suggests its potential as a prognostic biomarker in NSCLC.