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. 2021 Oct 4;9:750171. doi: 10.3389/fcell.2021.750171

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Copyright © 2021 Xue, Yang, Yang, Yan, Shen, Liu, Xue, Zhao and Liu.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Isolation and identification of engineered exosomes. (A) TEM micrographs of engineered exosomes before and after loading with miR-371b-5p. (B) DLS assay analyzed particle size of engineered exosomes. (C) Western blotting assessed the levels of CD9, CD81, and Calnexin proteins that are the markers of endoplasmic reticulum.