PKNOX1 and bladder transitional cell carcinoma: In contrast, in BLCA, KIRC, READ and SKCM (Figures 5Q–T), low PKNOX1 expression was significantly associated with poor OS, and in KIRC, low PKNOX1 expression was significantly associated with poor OS, DSS and PFI overall (Figure 5R; Supplementary Figure 1Q, Supplementary Figure 2R).