Fig. 3
From: M2 microglia-derived exosomes promote vascular remodeling in diabetic retinopathy
Identification of M2 microglia and exosomes. A Microglia were induced with IL-4 for 0, 24, and 48 h for flow identification. B Identification of primary microglial polarization by immunofluorescence (scale bar = 20 μm). C TEM images of exosome ultrastructure (white arrows represent exosomes). D Nanoparticle tracking analysis of M0 and M2 exosomes. E Representative bands showing protein levels of the exosomal surface markers TSG101, CD63, CD81, and calnexin