Project description:Purpose of experiment :To 1) evaluate for the presence of pulmonary ionocytes, 2) investigate the role of the CFTR in airway epithelium. Description of samples: 1564 (CF-repaired), 1565 (CF DF508homozygous) iPSC-airway epithelium through basal cell intermediate. iPSC-D15CD47/CD26sort- NGFR sort x 2