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Defining mesenchymal stromal cell (MSC)‐derived small extracellular vesicles for therapeutic applications

Open access
Witwer, Kenneth W., Van Balkom, Bas W.M., Bruno, Stefania, Choo, Andre, Dominici, Massimo, Gimona, Mario, Hill, Andrew F., De Kleijn, Dominique, Koh, Mickey, Lai, Ruenn Chai, Mitsialis, S. Alex, Ortiz, Luis A., Rohde, Eva, Asada, Takashi, Toh, Wei Seong, Weiss, Daniel J., Zheng, Lei, Giebel, Bernd, Lim, Sai Kiang·2019·Journal of Extracellular Vesicles

Abstract

Small extracellular vesicles (sEVs) from mesenchymal stromal/stem cells (MSCs) are transiting rapidly towards clinical applications. However, discrepancies and controversies about the biology, functions, and potency of MSC‐sEVs have arisen due to several factors: the diversity of MSCs and their preparation; various methods of sEV production and separation; a lack of standardized quality assurance assays; and limited reproducibility of in vitro and in vivo functional assays. To address these issues, members of four societies (SOCRATES, ISEV, ISCT and ISBT) propose specific harmonization criteria for MSC‐sEVs to facilitate data sharing and comparison, which should help to advance the field towards clinical applications. Specifically, MSC‐sEVs should be defined by quantifiable metrics to identify the cellular origin of the sEVs in a preparation, presence of lipid‐membrane vesicles, and the degree of physical and biochemical integrity of the vesicles. For practical purposes, new MSC‐sEV preparations might also be measured against a well‐characterized MSC‐sEV biological reference. The ultimate goal of developing these metrics is to map aspects of MSC‐sEV biology and therapeutic potency onto quantifiable features of each preparation.

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Metadata

Authors
Witwer, K. W., Van Balkom, B. W. M., Bruno, S., Choo, A., Dominici, M., Gimona, M., Hill, A. F., De Kleijn, D., Koh, M., Lai, R. C., Mitsialis, S. A., Ortiz, L. A., Rohde, E., Asada, T., Toh, W. S., Weiss, D. J., Zheng, L., Giebel, B., & Lim, S. K.
Venue
Journal of Extracellular Vesicles
Publisher
Wiley
Published
2019-04-29
Volume
8
Issue
1
Pages
1609206-1609206
ISSN
2001-3078 (ISSN-L)
OpenAlex
W2942732217
Cited by
671
References
8
FWCI
22.27
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Defining mesenchymal stromal cell (MSC)‐derived small extracellular vesicles for therapeutic applications. https://app.cochat.ai/papers/10.1080/20013078.2019.1609206
The paper
Witwer, K. W., Van Balkom, B. W. M., Bruno, S., Choo, A., Dominici, M., Gimona, M., Hill, A. F., De Kleijn, D., Koh, M., Lai, R. C., Mitsialis, S. A., Ortiz, L. A., Rohde, E., Asada, T., Toh, W. S., Weiss, D. J., Zheng, L., Giebel, B., & Lim, S. K. (2019). Defining mesenchymal stromal cell (MSC)‐derived small extracellular vesicles for therapeutic applications. Journal of Extracellular Vesicles. https://doi.org/10.1080/20013078.2019.1609206

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.