Keywords: AP-1; adaptor protein 1; ASL; airway surface liquid; CCO; cytochrome c oxidase; CF; cystic fibrosis; COX-2; cyclooxygenase 2; Csk; c-src kinase; DMEM; Dulbeccos' minimal essential medium; DMT1; divalent metal ion transporter 1; DUOX; dual oxidase; EGFR;