Race-specific comparisons from 211 serum samples showed significantly higher levels of CXCL2 (control: 3104.0 pg/ml vs. cancer: 2451.0 pg/ml) and CXCL5 (control: 5189.0 pg/ml vs. cancer: 5459.0 pg/ml) in AA men than in CAs (CXCL2; control: 1155.0 pg/ml vs. cancer: 889.3 pg/ml, and CXCL5; control: 1183.0 pg/ml vs. cancer: 977.5 pg/ml). Here, CXCL2 is linked to cancer.