Figure 7From: Increased human Ca2+-activated Cl-channel 1 expression and mucus overproduction in airway epithelia of smokers and chronic obstructive pulmonary disease patientsCoincidence of CLCA1 expression and MUC5AC expression, but not IL-13 receptor expression. Lung sections from a COPD patient were immunohistochemically stained with (A) anti-CLCA1 antibody, (B) anti-MUC5AC antibody, or (C) anti-IL-13Rα antibody. Scale bars = 200 μm.Back to article page