Fig. 2

Expression of IL-33 by CNS resident cells in human. a Co-staining of IL-33 (brown) with SMI-31 (blue), a marker for neuron and axons, in cortex of normal human brain (a) and MS acute lesion (b). b Co-staining of IL-33 with Iba1, a marker for microglia cells, in human brain samples. Arrows indicate colocalization of IL-33 with Iba-1. c Co-staining of IL-33 with GFAP, a marker for astrocytes (arrows) in human brain samples. d Co-staining of IL-33 with CA-II, a marker for oligodendrocytes (arrows) in human brain samples