期刊
CHINESE MEDICAL JOURNAL
卷 133, 期 7, 页码 853-862出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/CM9.0000000000000710
关键词
Breast cancer; Immune microenvironment; Immunotherapy; Programmed cell death protein ligand-1 inhibitors; Programmed cell death protein-1 inhibitors
Historically, breast cancer has been regarded as an immunogenic cold tumor. However, the discovery of immune checkpoint inhibitors has made immunotherapy becoming an emerging new treatment modality for breast cancer. This review discusses the immune system, immune features of breast cancer, and the programmed cell death protein-1/programmed cell death protein ligand-1 (PD-1/PD-L1) inhibitors used in the treatment of breast cancer. High T lymphocyte infiltration and mutation burden were observed in triple-negative breast cancer and human epidermal growth factor receptor 2 positive breast cancer. Increasing breast cancer immunogenicity and modulating the tumor microenvironment has been reported to improve the therapeutic efficacy of immunotherapy. Recent clinical trials involving PD-1/PD-L1 inhibitors monotherapy in breast cancer has revealed little efficacy, which highlights the need to develop combinations of PD-1/PD-L1 inhibitors with chemotherapy, molecularly targeted therapies, and other immunotherapies to maximize the clinical efficacy. Collectively, the immunotherapy might be a promising therapeutic strategy for breast cancer and several clinical trials are still on-going.
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