Journal of International Oncology ›› 2022, Vol. 49 ›› Issue (6): 345-348.doi: 10.3760/cma.j.cn371439-20220323-00065

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Research progress in influences of epigenetic modifications on PD-L1 expression in tumors

Wang Yue1, Hu Qun2(), Hou Yingwei1   

  1. 1First Clinical Medical College of Inner Mongolia Medical University, Hohhot 010050, China
    2Department of Medical Oncology, Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010050, China
  • Received:2022-03-23 Online:2022-06-08 Published:2022-06-30
  • Contact: Hu Qun E-mail:huqun2015@126.

Abstract:

Tumor cells expression of programmed death ligand-1 (PD-L1) is a major mechanism of immune escape and a predictor of therapeutic efficacy of immune checkpoint inhibitors. The expression of PD-L1 is regulated by a variety of mechanisms, among which epigenetic modifications such as DNA methylation, histone modification and non-coding RNA can promote the occurrence, development and drug resistance of tumors by regulating the expression of PD-L1. To clarify its regulation mechanism can bring new ideas for clinical immunotherapy of tumors.

Key words: Neoplams, Epigenetic regulation, PD-L1