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Fig. 4 | Molecular Cancer

Fig. 4

From: Role of the tumor microenvironment in PD-L1/PD-1-mediated tumor immune escape

Fig. 4

Epigenetic modification of PD-L1 by the tumor microenvironment. a IFN-γ can regulate the translation of PD-L1 mRNA via upregulating miR-155 or downregulating miR-513, and EGF can enhance the mRNA stability via the RAS-ERK1/2-TPP pathway. b EGF can reduce PD-L1 degradation via upregulating B3NT3 or downregulating GSK3β; alternatively, EGF can enhance PD-L1 protein stability via the PTEN/PI3K/mTOR /S6K1 pathway

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