C-X-C motif chemokine 2 (CXCL2) also named Growth-regulated oncogene beta (GROβ), which is a chemokine of the intercrine alpha family. CXCL2 is a 8.1 kDa protein containing 73 amino acid residues. CXCL2 is often expressed in immune cells such as macrophages and monocytes. CXCL2 plays an important role with immune responses and cancer progression. CXCL2 activates the cell signal transduction with casepas1 that affects the cell proliferation, differentiation and migration.