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. 2020 Jun 16;9(1):1778883. doi: 10.1080/20013078.2020.1778883

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© 2020 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group on behalf of The International Society for Extracellular Vesicles.

This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 1. — Identification of hUC-MSCs and hUC-MSCs-sEVs. (a) Representative images showing the spindle-like morphology of hUC-MSCs. Scale bar: 100 um. (b) Characteristic surface markers of hUC-MSCs evaluated by flow cytometry. The blue curves represent isotype controls and the red curves represent the surface markers. (c) Morphology of hUC-MSCs-sEVs visualized under transmission electron microscopy (TEM). Scale bar: 200 nm. (d) Particle size distribution of hUC-MSCs-sEVs measured using nanoparticle tracking analysis. (e) Surface markers of hUC-MSCs-sEVs quantified by western blotting.