COPZ1 and bladder transitional cell carcinoma: As shown in Figure 2A, high expression of COPZ1 was associated with poor overall survival in BLCA (HR =1.7, p = 0.00057), BRCA (HR =1.4, p = 0.03), HNSC (HR = 1.6, p = 0.0014), LIHC (HR = 1.5, p = 0.028), and LUAD (HR = 1.4, p = 0.018), while low expression of the COPZ1 was linked to the poor OS in UCEC (HR = 0.41, p = 0.017).