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KMID : 1038620210390040247
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Radiation Oncology Journal
2021 Volume.39 No. 4 p.247 ~ p.253
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Abscopal effect in the radio and immunotherapy
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Pevzner Alina M.
Tsyganov Matvey M.
Ibragimova Marina K.
Litvyakov Nikolai V.
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Abstract
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This review is devoted to a rare in clinical practice, but promising phenomenon of regression distant non-irradiated metastases in combination therapy of cancer patients. R. H. Mole in 1953 suggested introducing the term “abscopal effect” to denote the effect of ionizing radiation “at a distance from the irradiated volume but within the same organism.” Currently, it is a hypothesis in the treatment of metastatic cancer, when there is a regression of untreated areas simultaneously with a decrease in the tumor. After the discovery of immune checkpoint cases were increase with patients treated with check-point blockade (especially lymphocyte associated protein 4, programmed cell death 1/programmed cell death 1 ligand 1) and which have an abscopal effect. This review systematizes works covering the time period from 1969 to 2019, which give cases of the abscopal effect at different localizations. However, abscopal effect is a poorly understood phenomenon. In this review, the authors tried to collect all information about the possible mechanisms of the abscopal effect, possible role in antitumor response and frequency abscopal effect at radio/immunotherapy or combined both.
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KEYWORD
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Abscopal effect, Radiotherapy, Immunotherapy, Cancer
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