Journal of International Oncology ›› 2026, Vol. 53 ›› Issue (1): 57-61.doi: 10.3760/cma.j.cn371439-20250319-00008

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Research progress on resistance mechanisms of anti-PD-1/PD-L1 therapy in advanced non-small cell lung cancer

Li Ting1,2, Zhou Qi3, Zhang Qian1, Chen Jie1()   

  1. 1Cancer Center, Second People's Hospital of Yibin, Sichuan Province, Yibin 644000, China
    2Department of Oncology, Affiliated Hospital of Yangzhou University, Yangzhou 225000, China
    3Department of Oncology, Jiang'an County Traditional Chinese Medicine Hospital, Sichuan Province, Jiang'an 644200, China
  • Received:2025-03-19 Online:2026-01-08 Published:2026-01-13
  • Contact: Chen Jie E-mail:22010619@qq.com
  • Supported by:
    Sichuan Provincial Medical Youth Innovation Research Project(Q22072);Southwest Medical University Higher Education Teaching Research and Reform(JG2022270)

Abstract:

Although immune checkpoint inhibitor therapy based on anti-programmed death-1 (PD-1) and programmed death-ligand 1 (PD-L1) can significantly improve the survival prognosis of patients with advanced non-small cell lung cancer, primary and secondary drug resistance result in limited benefits for some individuals. The resistance mechanism of anti-PD-1/PD-L1 therapy is particularly complex and is influenced by multiple factors. A systematic review of the latest research results on the resistance mechanism to PD-1/PD-L1 immune checkpoint inhibitors can provide scientific basis for optimizing the treatment strategy of non-small cell lung cancer patients.

Key words: Carcinoma, non-small-cell lung, Immune checkpoint inhibitors, Tumor microenvironment, Drug resistance,neoplasm