TTLL7 and bladder transitional cell carcinoma: Finally, eight hub genes in the ceRNA network were considered as key members and correlated with the prognosis of BLCA through multivariate analysis, including ELN, SREBF1, DSC2, TTLL7, DIP2C, SATB1, hsa-miR-20a-5p, and hsa-miR-29c-3p (Figure 4C and Table 1).