CXCL8 and colorectal carcinoma: In a subset of CRC patients (n = 44), we examined Nampt/PBEF/visfatin correlation with serum levels of IL1β, IL4, IL12, IL6, IL8, TNFα, CCL2, CCL4, VEGF-A, PDGF-BB, FGF2, G-CSF, and GM-CSF.