PCSK9 and bladder transitional cell carcinoma: Then, we identified six DERBPs, which were strongly associated with OS of BLCA by multivariate Cox regression analysis in the training set (Figure 2B), and the detailed information of these RBPs including FLNA (Filamin A), HSPG2 (Heparan Sulfate Proteoglycan 2), AHNAK (AHNAK Nucleoprotein), FASTKD3 (FAST Kinase Domains 3), POU5F1 (POU Class 5 Homeobox 1), and PCSK9 (Proprotein Convertase Subtilisin/Kexin Type 9) were listed in Table 2.