Exosomal circLPAR1 Promoted Osteogenic Differentiation of Homotypic Dental Pulp Stem Cells by Competitively Binding to hsa-miR-31

Figure 2

Identification of exosomes by (a) transmission electron microscopy, (b) nanoparticle tracking analysis, and (c) flow cytometry assay. (a) Electron micrographs showed that all exosomes detected were circular structures with a size range of 20-120 nm. (b) The average particle size and main peak of particle size were within the range of exosome particle size. (c) The exosome-specific marker (CD63 and CD81) in EX0, EX5, and EX7 was detected by flow cytometry. The NC group was exosomes with no stain.

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