(A) H&E-stained airways of both WT and αT-cat KO mice exposed to HDM, showing inflammation from the PV in WT mice. (B) Percent PAS-positive staining as a function of distance to the nearest PV. Each of the 21 data points in the regression analysis represents a single PAS-positive airway from HDM-treated WT mice, one tissue section each, from Figure 1 (n=5 mice). (C) Measurement of raw intensity of αE-cat in PV junctions of WT (n=50) and KO (n=98) mice exposed to HDM, normalized to WT. AW=airway, PA=Pulmonary artery, PV=Pulmonary vein. *p<0.05, Student’s t-test. Error bars=S.E.M.