Human Periodontal Ligament Stem Cell-Derived Exosomes Promote Bone Regeneration by Altering MicroRNA Profiles

Figure 2

Characterization of exosomes derived from hPDLSCs. (a) TEM images confirmed the presence of exosomes, seen as cup-shaped vesicles. Scale bar: 100 nm. (b) Western blot analysis of the exosome-specific markers (TSG101, CD63) and endoplasmic reticulum protein (calnexin). Cell lysate of PDLSCs was used as control. (c) The particle size distribution and concentration of exosomes were measured by NTA.

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