Chemokine C-X-C motif ligand 8 (CXCL8) is a target of miR-204. (A) Targeting effect of miR-204 on the 3′-untranslated region (3′-UTR) of CXCL8 was measured by dual-luciferase reporter activity assay. (B) Protein expression of CXCL8 in cell lines transfected with miR-204 mimic, mimic NC, miR-204 inhibitor, or inhibitor NC. (C) Protein expression of CXCL8 in cell lines transfected with inhibitor NC, miR-204 inhibitor, and miR-204 inhibitor plus CXCL8 short interfering RNA (siRNA). *p < 0.05.