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. 2019 Jun 13;10:170. doi: 10.1186/s13287-019-1278-x

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© The Author(s). 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 2 — Endocytosis of UN-Exo and OD-Exo by DPSCs. a The morphology of UN-Exo and OD-Exo was determined by transmission electron microscopy. b Automated western blot analysis revealed that exosomal markers CD9 and CD63 were expressed in the UN-Exo and OD-Exo. c Endocytosis of exosomes by DPSCs was visualized by fluorescent labeling with PKH26