Fig. 6From: M2 macrophage is the predominant phenotype in airways inflammatory lesions in patients with granulomatosis with polyangiitisRelationship between immunosuppressive therapy and macrophages (CD68+ and CD163+ macrophages) in airway biopsies from patients with granulomatosis with polyangiitis (GPA). Higher frequency of macrophages (a), especially M2 macrophages (b), is observed in airway biopsies from patients with GPA on immunosuppressive therapy compared to patients not on immunosuppressive therapyBack to article page