CXCL13 and bladder transitional cell carcinoma: High expression of each chemokine except XCL2 (i.e., CXCR6, CXCR3, CCR5, CXCL9, CCL5, and CXCL13) was significantly associated with better prognosis in patients with BLCA (all p < 0.05, Supplementary Figure S3B).