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. 2021 Aug 12;19(1):23–32. doi: 10.1038/s41423-021-00735-3

Fig. 4.

Fig. 4

Dual effects of IFNγ in cancer immunity. IFNγ exerts antitumor effects via multiple mechanisms. In contrast, IFNγ can protect cancer cells from immune cell attack by inducing PD-L1, IDO, and arginase expression. Chronic IFNγ signaling enforces immunosuppressive mechanisms in the tumor microenvironment