Subsequent analyses using Cox regression for DSS indicated that IL4I1 was a detrimental factor in GBM, LGG, KIRC, KIRP, THYM, and UVM, but a favorable gene in BLCA, BRCA, CESC, HNSC, and SKCM (Figure 2H). Here, IL4I1 is linked to bladder transitional cell carcinoma.