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Li C, Sun C, Elton J, Lohcharoenkal W, Görgens A, El Andaloussi S, Sonkoly E, Pivarcsi A. 496 Comprehensive analysis of extracellular vesicles surface markers produced by normal keratinocytes human cutaneous squamous cell carcinoma cell lines reveals phenotypic heterogeneity. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.09.510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Bost J, Gupta D, El Andaloussi S, Saher O. Exosomes/EVs: GROWTH MEDIA CONDITIONS INFLUENCE THE SECRETION ROUTE AND RELEASE LEVELS OF ENGINEERED EXTRACELLULAR VESICLES. Cytotherapy 2022. [DOI: 10.1016/s1465-3249(22)00276-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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van de Wakker SI, van Oudheusden J, Mol EA, Roefs MT, Zheng W, Görgens A, El Andaloussi S, Sluijter JPG, Vader P. Influence of short term storage conditions, concentration methodsand excipients on extracellular vesicle recovery and function. Eur J Pharm Biopharm 2021; 170:59-69. [PMID: 34864197 DOI: 10.1016/j.ejpb.2021.11.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 11/16/2021] [Accepted: 11/25/2021] [Indexed: 12/26/2022]
Abstract
Extracellular vesicles (EVs) are phospholipid bilayer enclosed vesicles which play an important role in intercellular communication. To date, many studies have focused on therapeutic application of EVs. However, to progress EV applications faster towards the clinic, more information about the physical stability and scalable production of EVs is needed. The goal of this study was to evaluate EV recovery and function after varying several conditions in the isolation process or during storage. Physical stability and recovery rates of EVs were evaluated by measuring EV size, particle and protein yields using nanoparticle tracking analysis, microBCA protein quantification assay and transmission electron microscopy. Western blot analyses of specific EV markers were performed to determine EV yields and purity. EV functionality was tested in an endothelial cell wound healing assay. Higher EV recovery rates were found when using HEPES buffered saline (HBS) as buffer compared to phosphate buffered saline (PBS) during EV isolation. When concentrating EVs, 15 ml spinfilters with a 10 kDa membrane cutoff gave the highest EV recovery. Next, EV storage in polypropylene tubes was shown to be superior compared to glass tubes. The use of protective excipients during EV storage, i.e. bovine serum albumin (BSA) and Tween 20, improved EV preservation without influencing their functionality. Finally, it was shown that both 4 °C and -80 °C are suitable for short term storage of EVs. Together, our results indicate that optimizing buffer compositions, concentrating steps, protective excipients and storage properties may collectively increase EV recovery rates significantly while preserving their functional properties, which accelerates translation of EV-based therapeutics towards clinical application.
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Affiliation(s)
- S I van de Wakker
- Department of Cardiology, Experimental Cardiology Laboratory, University Medical Center Utrecht, Utrecht University, the Netherlands
| | - J van Oudheusden
- Department of Cardiology, Experimental Cardiology Laboratory, University Medical Center Utrecht, Utrecht University, the Netherlands
| | - E A Mol
- Department of Cardiology, Experimental Cardiology Laboratory, University Medical Center Utrecht, Utrecht University, the Netherlands
| | - M T Roefs
- Department of Cardiology, Experimental Cardiology Laboratory, University Medical Center Utrecht, Utrecht University, the Netherlands
| | - W Zheng
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Stockholm, Sweden
| | - A Görgens
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Stockholm, Sweden
| | - S El Andaloussi
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Stockholm, Sweden
| | - J P G Sluijter
- Department of Cardiology, Experimental Cardiology Laboratory, University Medical Center Utrecht, Utrecht University, the Netherlands
| | - P Vader
- Department of Cardiology, Experimental Cardiology Laboratory, University Medical Center Utrecht, Utrecht University, the Netherlands; CDL Research, University Medical Center Utrecht, the Netherlands.
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van Westering T, Johansson H, Coenen-Stass A, Miyatake S, Tanihata J, Takeda S, Yokota T, Lehtiö J, Wood M, El Andaloussi S, Roberts T, Aoki Y. Comparative high resolution proteomic analysis of dystrophic mouse models reveals a core dystrophic proteome and the impact of aging. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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van Westering T, Johansson H, Coenen-Stass A, Tanihata J, Takeda S, Yokota T, Lehtiö J, Wood M, El Andaloussi S, Roberts T, Aoki Y. Age-related and mutation-independent proteomic changes in dystrophic mouse muscle. Neuromuscul Disord 2017. [DOI: 10.1016/s0960-8966(17)30231-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Manzano R, Aoki Y, Lee Y, Dafinca R, Aoki M, Douglas A, Varela M, Sathyaprakash C, Scaber J, Barbagallo P, Vader P, Mäger I, Ezzat K, Turner M, Ito N, Gasco S, Ohbayashi N, El Andaloussi S, Taked S, Fukuda M, Talbot K, Wood M. C9ORF72 and RAB7L1 regulate vesicle traffi cking in Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Neuromuscul Disord 2017. [DOI: 10.1016/s0960-8966(17)30312-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Muses S, Godfrey C, McClorey G, Wells K, Coursindel T, Terry R, Betts C, Cappellari O, Hammond S, O'Donovan E, Hildyard J, El Andaloussi S, Gait M, Wood M, Wells D. The physiological consequences of different levels of dystrophin following antisense based exon-skipping in the mdx mouse. Neuromuscul Disord 2015. [DOI: 10.1016/j.nmd.2015.06.450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Godfrey C, McClorey G, Coursindel T, Betts C, Hammond S, El Andaloussi S, Gait M, Wood M. P04 Advancing the potential of peptide-PMO compounds in exon skipping therapy for DMD. Neuromuscul Disord 2012. [DOI: 10.1016/s0960-8966(12)70012-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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