STING1 and neoplasm: To further validate these findings in human tumor samples, we performed immunofluorescence imaging of STING and found elevated expression of tumor cell-intrinsic STING in the predominantly high-risk tumor (e.g., MSK-UM01) as compared to the predominantly low-risk tumor (e.g., MSK-UM03), where minimal STING expression was mainly restricted to the stromal compartment (Fig. 7b).