Research Article

Adipose-Derived Mesenchymal Stem Cells Promote M2 Macrophage Phenotype through Exosomes

Figure 3

Isolation and characterization of AdMSCs and AdMSC-derived exosomes. (a) Morphology of cultured AdMSCs displayed the typical spindle shape of MSCs (magnification, 100x). Under specific differentiation conditions, AdMSCs were differentiated into osteoblasts (magnification, 200x), adipocytes (magnification, 400x), and chondrocytes (magnification, 200x). (b) Flow cytometry histograms show the positive or negative immunophenotype of cultured AdMSCs. The cells expressed CD73, CD90, and CD105, known as MSC markers. (c) Morphology of exosomes was identified by transmission electron micrograph (TEM). . (d) Protein expression of CD9 and CD63, the exosomes markers, was analyzed by western blot assay.
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