CFTR and cystic fibrosis: We analyzed the expression of SFPQ in the F508del-CFTR human CF bronchial epithelial cell line (CFBE41o−, CF) compared to the respective control cell line (16HBE14o−, control) as well as in RNA isolated from lung parenchyma tissues of CF patients undergoing lung transplant (CFP) compared to matched control tissue (HBEP).