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. 2022 Mar 1;15:1421–1436. doi: 10.2147/JIR.S345517

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© 2022 Zhu et al.

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Characterization of iMSC and iMSC-sEVs. (A) Surface antigen profile of iMSC evaluated by flow cytometry. (B) Western blotting showing the expression of exosomal markers including CD9, TSG101, and CD63 in iMSC-sEVs, but not the negative marker GM130. (C) Representative image of iMSC-sEVs observed by TEM. Scale bar = 100 nm. (D) Particle size distribution of iMSC-sEVs measured by nano-flow cytometer.