The progress and challenge of anti-PD-1/PD-L1 immunotherapy in treating non-small cell lung cancer

Jingjing Qu1, Quanhui Mei2, Li Liu3

  • 1Department of Respiratory Disease, Thoracic Disease Centre, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, PR China.

Insights

Programmed cell-death protein 1 (PD-1)/PD-1 ligand 1 (PD-L1) inhibitors offer improved survival for advanced non-small-cell lung cancer (NSCLC). Further research into biomarkers is crucial for optimizing immunotherapy efficacy and managing resistance.

Area of Science:

  • Immunology
  • Oncology
  • Pharmacology

Background:

  • Programmed cell-death protein 1 (PD-1)/PD-1 ligand 1 (PD-L1) inhibitors are standard treatments for non-small-cell lung cancer (NSCLC).
  • These immunotherapies modulate the host immune response against tumors, offering advantages over traditional chemotherapy and radiotherapy.
  • PD-1/PD-L1 inhibitor monotherapy has shown prolonged survival with fewer side effects in advanced NSCLC.

Purpose of the Study:

  • To review the latest advancements in PD-1/PD-L1 inhibitor treatment for advanced NSCLC globally, including China.
  • To explore the identification of biomarkers for monitoring treatment safety and efficacy.
  • To discuss future challenges in cancer immunotherapy for NSCLC.

Main Methods:

  • Literature review of recent studies on PD-1/PD-L1 inhibitors in advanced NSCLC.
  • Analysis of biomarker research related to immunotherapy response and resistance.
  • Discussion of clinical application limitations and future research directions.

Main Results:

  • PD-1/PD-L1 inhibitors represent a significant therapeutic advance in advanced NSCLC.
  • Lack of optimal prognostic biomarkers is a major limitation for current immunotherapy.
  • Immune-related adverse events and drug resistance are key challenges.

Conclusions:

  • PD-1/PD-L1 inhibitors have transformed NSCLC treatment, offering improved survival and safety profiles.
  • Development of reliable biomarkers is essential for personalized immunotherapy and overcoming resistance.
  • Continued research is vital to enhance the clinical application and translational studies of cancer immunotherapy.

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