Moreover, LaSig also represented the expression of PD-1, which is significantly positively correlated with the expression of PD-1, including BLCA, kidney chromophobe (KICH), acute myeloid leukemia (LAML), lower grade glioma (LGG), liver cancer (LIHC), LUAD, pancreatic cancer (PAAD), testicular cancer (TGCT) and UVM (Figure S3). Here, PDCD1 is linked to testicular cancer.