id:"swepub:oai:gup.ub.gu.se/319383"
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- Lischnig, Anna,1998Gothenburg University,Göteborgs universitet,Institutionen för medicin, avdelningen för invärtesmedicin och klinisk nutrition,Institute of Medicine, Department of Internal Medicine and Clinical Nutrition (author)
Quantitative Proteomics Identifies Proteins Enriched in Large and Small Extracellular Vesicles
- Article/chapterEnglish2022
Publisher, publication year, extent ...
- Elsevier BV,2022
Numbers
- LIBRIS-ID:oai:gup.ub.gu.se/319383
- https://gup.ub.gu.se/publication/319383URI
- https://doi.org/10.1016/j.mcpro.2022.100273DOI
Supplementary language notes
- Language:English
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- SwePubSwePub
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Notes
- There is a long-held consensus that several proteins are unique to small extracellular vesicles (EVs), such as exosomes. However, recent studies have shown that several of these markers can also be present in other subpopulations of EVs to a similar degree. Furthermore, few markers have been identified as enriched or uniquely present in larger EVs, such as microvesicles. The aim of this study was to address these issues by conducting an in-depth comparison of the proteome of large and small EVs. Large (16,500g) and small EVs (118,000g) were isolated from three cell lines using a combination of differential ultracentrifugation and a density cushion and quantitative mass spectrometry (tandem mass tag-liquid chromatography-tandem mass spectrometry) was used to identify differently enriched proteins in large and small EVs. In total, 6493 proteins were quantified, with 818 and 1567 proteins significantly enriched in small and large EVs, respectively. Tetraspanins, ADAMs and ESCRT proteins, as well as SNAREs and Rab proteins associated with endosomes were enriched in small EVs compared with large EVs, whereas ribosomal, mitochondrial, and nuclear proteins, as well as proteins involved in cytokinesis, were enriched in large EVs compared with small EVs. However, Flotillin-1 was not differently expressed in large and small EVs. In conclusion, our study shows that the proteome of large and small EVs are substantially dissimilar. We validated several proteins previously suggested to be enriched in either small or large EVs (e.g., ADAM10 and Mitofilin, respectively), and we suggest several additional novel protein markers.
Subject headings and genre
- NATURVETENSKAP Biologi Biokemi och molekylärbiologi hsv//swe
- NATURAL SCIENCES Biological Sciences Biochemistry and Molecular Biology hsv//eng
- membrane-vesicles
- rab gtpases
- exosomes
- cells
- microvesicles
- microrna
- mitochondria
- microdomains
- activation
- syntenin-1
- Biochemistry & Molecular Biology
Added entries (persons, corporate bodies, meetings, titles ...)
- Bergqvist, Markus,1995Gothenburg University,Göteborgs universitet,Institutionen för medicin, avdelningen för invärtesmedicin och klinisk nutrition,Institute of Medicine, Department of Internal Medicine and Clinical Nutrition(Swepub:gu)xbermq (author)
- Ochiya, T. (author)
- Lässer, Cecilia,1981Gothenburg University,Göteborgs universitet,Institutionen för medicin, avdelningen för invärtesmedicin och klinisk nutrition,Krefting Research Centre,Institute of Medicine, Department of Internal Medicine and Clinical Nutrition(Swepub:gu)xlasce (author)
- Göteborgs universitetInstitutionen för medicin, avdelningen för invärtesmedicin och klinisk nutrition (creator_code:org_t)
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- In:Molecular & Cellular Proteomics: Elsevier BV21:91535-94761535-9484
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