CFTR and cystic fibrosis: The membrane localization of CFTR expressed by non-CF monocytes is confirmed by confocal microscopy analysis (Figure 2, bottom right panel), where non-CF monocytes expressing membrane-localized CFTR are shown in comparison with the monocytes isolated from patients carrying a R1162X/R1162X, predicted to produce a truncated form of the protein as confirmed by western blotting data (Figure 1, panel C) that appears to loose membrane localization, as detected by confocal microscopy analysis (Figure 2, bottom left panel).