Moreover, asthma patients with low α2 immunoreactivity on epithelial cells (scores 0 or 1 [67% of asthma subjects]) compared to those with stronger staining (score 2 or 3) showed thicker RBM (6.79 [5.82–7.94] vs. 5.64 [5.17–6.66] μm, p = 0.02) and increased concentration of IL-6 in BAL (0.78 [0.17–1.39] vs. 0.51 [0.01–0.89] pg/mL, p = 0.02). This evidence concerns the gene IL6 and asthma.