Fig. 4From: M2 macrophage is the predominant phenotype in airways inflammatory lesions in patients with granulomatosis with polyangiitisRepresentative figures of immunostaining of T cells (a), T helper (Th)1 (b) and Th2 (c) cells. The expression of the nuclear transcription factor GATA-3 is (e.g. a Th2 marker) is significantly higher than that of Tbet (e.g. a Th1 marker) in airway biopsies from patients with granulomatosis with polyangiitisBack to article page