CXCL1 and chronic obstructive pulmonary disease: The bronchoalveolar lavage fluid (BALF) analyses of the COPD patients, show the presence of CXC chemokines, including CXCL1 (GRO-α), CXCL5 (ENA78), leukotriene B4 (LTB4) and chemokine (C-X-C motif) ligand 8 or interleukin-8 (CXCL8) are the major neutrophilic chemoattractant [7].