CD274 and neoplasm: As expected, CT26 cells expressing a Cd274 cDNA with the full-length, wild-type 3′ UTR (PD-L1 WT 3′ UTR) had considerably lower expression of PD-L1 protein than the PD-L1 Δ3′ UTR cells, but still responded to TTP induction in terms of reductions in PD-L1 expression (Figure S7F) and control of tumor growth in immune-competent mice (Figure S7G).