Fig. 2From: Comprehensive analysis of M2 macrophage-derived exosomes facilitating osteogenic differentiation of human periodontal ligament stem cellsIdentification of M0, M1 and M2 macrophage-derived exosomes. A Morphology of M0, M1 and M2 macrophages under inverted microscope. Original magnification: 100 × . B Flow cytometry identification of the proportion of positive M0, M1 and M2 macrophage markers. C Morphology and size of M0-exo, M1-exo and M2-exo under TEM. D Western blotting was used to detect the expression of exosomal markers ALIX, CD9 and TSG101 in macrophage supernatants and M0-exo, M1-exo and M2-exoBack to article page