Furthermore, various neutrophil-attracting chemokines (CXCL1, CXCL2, CXCL5, CXCL6, and CXCL8) promote the migration of neutrophils to the tumor site through CXCR1 and CXCR2 receptors (54, 63). Here, CXCL1 is linked to neoplasm.