Fig. 3From: Exosomes secreted by stem cells from human exfoliated deciduous teeth contribute to functional recovery after traumatic brain injury by shifting microglia M1/M2 polarization in ratsCharacterization of SHED-Ex and internalization assay. a Morphologic observation of SHED-Ex by transmission electron microscopy (scale bar = 50 nm). b Surface exosomal markers (CD9, CD63) were analyzed using Western blotting in SHED, exosomes from GW4869-treated SHED, and SHED-Exo. c Flow cytometric analysis showing the presence of CD9, CD63, and CD81 in exosomes derived from SHED. d Immunofluorescence image showing the internalization of CM-Dil-labeled exosomes (red) by microglia (scale bar = 150 μm). e DiI uptake was analyzed by flow cytometry with different incubation timesBack to article page