↑ in BlCa patients than normal/adjacent tissues (Wang et al., 2017); ↑ in undifferentiated tumors (Gao et al., 2019); ↑ in higher stage tumors (Gao et al., 2019); ↑ in lymph node metastasis (Gao et al., 2019); In MIBC patients, ↑ CCL2 in tumor cells was associated with ↓ OS, ↓ DSS and ↓RFS (Eckstein et al., 2020). Here, CCL2 is linked to bladder transitional cell carcinoma.