CEACAM1 and neoplasm: Of the 12 chemokines compared, IL-6, Angiopoietin-2, IL-8, and CEACAM-1 were significantly higher in the tumor group (IL-6: p = 0.02, Angiopoietin-2: p = 0.007, IL-8: p = 0.003, CEACAM-1: p = 0.001).