Figure 3. M2 macrophages produce IL-33 in SGs from patients with IgG4-RD.
Double immunofluorescence staining performed with IL-33 (green), innate immune cells markers for macrophages (CD68), M2 macrophages (CD163), mDC (CD11c), and pDC (CD123) (red), and DAPI for nuclei staining (blue), as described in the Methods section. Scale bars, 50 μm.