SCGB1A1 and chronic obstructive pulmonary disease: The AUC for SCGB1A1 was up-regulated in CS-exposed ALI cultures from COPD patients (from −10.3 ± 0.03 ∆Ct to −8.9 ± 0.8 ∆Ct, p = 0.0289) and healthy controls (from −9.9 ± 0.1 ∆Ct to −9.3 ± 0.1 ∆Ct, p = 0.1317).