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Function of antigen-presenting cells in non-small-cell lung cancer (NSCLC)

R Ilaya Kumar1, Kavya Jain1, Karan Raj Rai1

  • 1Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamil Nadu, 603203, India.

Medical Oncology (Northwood, London, England)
|April 12, 2025
PubMed

Insights

Non-small cell lung cancer (NSCLC) impairs antigen-presenting cells (APCs), hindering anti-tumor immunity and immunotherapy response. Strategies to restore APC function are crucial for improving clinical outcomes in NSCLC patients.

Area of Science:

  • Immunology
  • Oncology
  • Cancer Research

Background:

  • Non-small cell lung cancer (NSCLC) evades immune surveillance by inhibiting antigen presentation and T cell activation.
  • Antigen-presenting cells (APCs), including dendritic cells, macrophages, and B cells, are vital for anti-tumor immunity.
  • NSCLC disrupts APC function, impairing tumor antigen display and adaptive immune responses.

Purpose of the Study:

  • To investigate the mechanisms of APC dysfunction in NSCLC.
  • To analyze the role of the tumor microenvironment (TME) in reprogramming APCs.
  • To explore therapeutic strategies for enhancing APC function and immunotherapy effectiveness in NSCLC.

Main Methods:

  • Analysis of APC-TME interactions in NSCLC.
  • Examination of immune suppressive mechanisms within the NSCLC tumor microenvironment.
  • Development of therapeutic strategies targeting APC dysfunction and immune evasion.

Main Results:

  • NSCLC-associated tumor microenvironment (TME) reprograms APCs via inhibitory cytokines, metabolic constraints, and immune checkpoints.
  • APC dysfunction in NSCLC leads to impaired antigen presentation and T cell activation.
  • Consequently, NSCLC shows poor response to immunotherapies like checkpoint inhibitors.

Conclusions:

  • Understanding APC-TME interactions is key to overcoming immune suppression in NSCLC.
  • Restoring APC function and antigen presentation can enhance immunotherapy efficacy.
  • Targeted therapeutic strategies hold promise for improved clinical outcomes in NSCLC.
Keywords:
B cellsDendritic cellsImmunosuppressionMacrophagesNon-small-cell lung cancerTumor microenvironment

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