TOP2A and bladder transitional cell carcinoma: According to most algorithms, we observed a positive correlation between the infiltration level of neutrophils and TOP2A expression in the cases of BLCA, BRCA, BRCA-Basal, COAD, KICH, KIRC, KIRP, LIHC, OV as well as PAAD (all p values < 0.05, Supplementary Fig. S1C).