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. 2019 Feb 28;24(Suppl 1):S42–S52. doi: 10.1634/theoncologist.2019-IO-S1-s04

Figure 1.

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Radiotherapy (RT) initiates a mild antitumor immune response through various mechanisms. When immunotherapy induces a sufficiently strong response to inhibit the growth tumor lesions in areas targeted and not targeted by RT, an abscopal effect has occurred.Abbreviations: APC, antigen‐presenting cell; MDSC, myeloid‐derived suppressor cell; MHC I, major histocompatibility complex class I.