PMEPA1 and bladder transitional cell carcinoma: Firstly, we performed IHC to evaluate the expression and prognostic value of PMEPA1 in a cohort of 60 BLCA specimens (Table S1), and the expression of PMEPA1 and the clinical information of TCGA and GSE32894 were downloaded from TCGA and GEO (Table S16, S17).