Disclosed herein are genome editing systems and compositions that target a cystic fibrosis transmembrane conductance regulator (CFTR) gene and a sodium channel epithelial 1 alpha (SCNN1A) gene, comprising a Cas9 molecule, and a gRNA molecule comprising a targeting domain that is complementary with a target sequence of a CFTR gene or a SCNN1A gene, and cells comprising such genome editing systems and compositions. Also provided are methods for using the genome editing systems, compositions, and cells for genome engineering (e.g., altering a CFTR gene and/or a SCNN1A gene), and for preventing or treating Cystic Fibrosis (CF) and CF-like disease.