期刊
SEMINARS IN RADIATION ONCOLOGY
卷 25, 期 1, 页码 34-39出版社
W B SAUNDERS CO-ELSEVIER INC
DOI: 10.1016/j.semradonc.2014.07.006
关键词
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The clinical successes of CRA4 and PD-1 immune checkpoint blockade in aggressive malignancies such as metastatic melanoma and non-small cell lung carcinoma inaugurate a new era in oncology. Indeed, as opposed to tumor-targeted therapies, it is now clear that immune-targeted therapies designed to enhance the antitumor immune response are a relevant strategy to obtain long-term tumor responses. Interestingly, the study of tumor cell death biology has recently revealed that part of radiotherapy efficacy relies on its ability to trigger an immune response against tumor cells. This immunogenic cell death partly relies on the generation of damage-associated molecular patterns, which can stimulate immune sensors such as toll-like receptors. Tumor radiation therapy can therefore be envisioned as a strategy to perform an in situ immunization because it can initiate the release of tumorassociated antigens, deplete immune suppressors, and stimulate antigen-presenting cells via endogenous release of toll-like receptor agonists. Moreover, combinations of radiotherapy with immune checkpoint antibodies are synergistic in preclinical models. The translation of these observations in the clinic is ongoing in early phase I/II trials. (C) 2015 Elsevier Inc. All rights reserved.
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