Fig. 2

CYP27B1 expression No significant differences in CYP27B1 expression were detected between COPD explant tissue or tissue from unused donor lungs nor on mRNA level (a), nor on the protein level (b). CYP27B1 stained positive in lung epithelial cells of both unused donor lungs (c) and COPD explant lungs (d), while no staining was observed in endothelial cells of both unused donor lungs (e) and COPD explant lungs (f) and immune cells staining was inconclusive for both unused donor lungs (g) and COPD explant lungs (h). N = 10 Representative images are shown Horizontal line represents the median value