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. 2019 Sep 5;38:389. doi: 10.1186/s13046-019-1384-8

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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 — Uptake of exosomes derived from ECA109 and KYSE410 by HUVECs at 15 min, 60 min, 2 h and 4 h. HUVECs were cultured with exosomes (25 μg /mL) from ECA109, or exosomes (25 μg /mL) from KYSE410, or in the absence of exosomes (Exosome (−)). Fluorescence microscopy images showing the internalization of exosomes by HUVECs. Blue: Nucleus stained with DAPI. Red: PKH26-labeled exosomes. Green: Phalloidin-iFluor 488 Reagent. Scale bar, 50 μm