Journal of International Oncology ›› 2022, Vol. 49 ›› Issue (6): 362-365.doi: 10.3760/cma.j.cn371439-20211215-00069

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Research progress on the mechanism of CDK4/6 inhibitors promoting antitumor immunity by regulating the immune microenvironment of triple negative breast cancer

Wu Jiayi1, Chen Keyu1, Shao Xiying2(), Wang Xiaojia2()   

  1. 1Second Clinical Medical College, Zhejiang Chinese Medicine University, Hangzhou 310053, China
    2Department of Breast Oncology, Cancer Hospital of University of Chinese Academy of Sciences, Hangzhou 310022, China
  • Received:2021-12-15 Revised:2022-01-13 Online:2022-06-08 Published:2022-06-30
  • Contact: Shao Xiying,Wang Xiaojia E-mail:shaoxy@zjcc.org.cn;wangxj@zjcc.org.cn
  • Supported by:
    Medical Science and Technology Plan of Zhejiang Province of China(2021KY551)

Abstract:

Triple negative breast cancer is a subtype of breast cancer with poor prognosis and lack of effective treatment. Cyclin dependent kinase(CDK)4/6 inhibitors promote antitumor immunity by influencing the triple negative breast cancer immune microenvironment, such as increasing the tumor cell surface pragrammed death-ligand 1 protein expression, enhancing T cell activation and antigen presentation, changing the proportion of T cell subgroup and inducing lymphocyte infiltration. The change of immune microenvironment is related to tumor progression, but its mechanism is extremely complex. Exploring the mechanism of CDK4/6 inhibitor affecting immune microenvironment and its biomarkers can provide a new direction for the diagnosis and treatment of triple negative breast cancer.

Key words: Triple negative breast neoplasms, Tumor microenvironment, Cell cycle, Immunocheckpoint inhibitors