SERPINE2, RTKN, PRR11, MAPK12, ELOVL4, DSEL, DNM1, and COMP showed that the prognosis of patients with high expression was worse, and the analysis of ELOVL4 in TCGA-BLCA was taken as an example (p < 0.001, Fig. 2e). The gene discussed is SERPINE2; the disease is bladder transitional cell carcinoma.