Ultrafiltration with size-exclusion liquid chromatography for high yield isolation of extracellular vesicles preserving intact biophysical and functional properties - PubMed (original) (raw)

doi: 10.1016/j.nano.2015.01.003. Epub 2015 Feb 4.

Yi Lee 2, Pieter Vader 2, Imre Mäger 3, Henrik J Johansson 4, Wolf Heusermann 5, Oscar P B Wiklander 1, Mattias Hällbrink 6, Yiqi Seow 7, Jarred J Bultema 8, Jonathan Gilthorpe 9, Tim Davies 10, Paul J Fairchild 10, Susanne Gabrielsson 8, Nicole C Meisner-Kober 5, Janne Lehtiö 4, C I Edvard Smith 1, Matthew J A Wood 11, Samir El Andaloussi 12

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Ultrafiltration with size-exclusion liquid chromatography for high yield isolation of extracellular vesicles preserving intact biophysical and functional properties

Joel Z Nordin et al. Nanomedicine. 2015 May.

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Abstract

Extracellular vesicles (EVs) are natural nanoparticles that mediate intercellular transfer of RNA and proteins and are of great medical interest; serving as novel biomarkers and potential therapeutic agents. However, there is little consensus on the most appropriate method to isolate high-yield and high-purity EVs from various biological fluids. Here, we describe a systematic comparison between two protocols for EV purification: ultrafiltration with subsequent liquid chromatography (UF-LC) and differential ultracentrifugation (UC). A significantly higher EV yield resulted from UF-LC as compared to UC, without affecting vesicle protein composition. Importantly, we provide novel evidence that, in contrast to UC-purified EVs, the biophysical properties of UF-LC-purified EVs are preserved, leading to a different in vivo biodistribution, with less accumulation in lungs. Finally, we show that UF-LC is scalable and adaptable for EV isolation from complex media types such as stem cell media, which is of huge significance for future clinical applications involving EVs.

From the clinical editor: Recent evidence suggests extracellular vesicles (EVs) as another route of cellular communication. These EVs may be utilized for future therapeutics. In this article, the authors compared ultrafiltration with size-exclusion liquid chromatography (UF-LC) and ultra-centrifugation (UC) for EV recovery.

Keywords: Biophysical properties; extracellular vesicles; size-exclusion liquid chromatography; ultracentrifugation; ultrafiltration.

Copyright © 2015 The Authors. Published by Elsevier Inc. All rights reserved.

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