Evidence map›Paper›PMID 29441425›Full record

ArticleCellular and molecular life sciences : CMLS2018

Detailed analysis of the plasma extracellular vesicle proteome after separation from lipoproteins.

Nasibeh Karimi, Aleksander Cvjetkovic, Su Chul Jang, Rossella Crescitelli, Mohammad Ali Hosseinpour Feizi, Rienk Nieuwland, Jan Lötvall, Cecilia Lässer

Open access · hybridAbstract read
In one paragraph

Article in Cellular and molecular life sciences : CMLS, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 367 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
367citing papers in PubMed, 1 pooled it
21.8field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

367 citing papers in PubMed, 1 synthesis or guideline pooled it, 586 citations in OpenAlex.

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307 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 4 institutions in 4 countries.

Nasibeh KarimiKrefting Research Centre, Institute of Medicine at Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
Aleksander CvjetkovicKrefting Research Centre, Institute of Medicine at Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
Su Chul JangKrefting Research Centre, Institute of Medicine at Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
Rossella CrescitelliKrefting Research Centre, Institute of Medicine at Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
Mohammad Ali Hosseinpour FeiziDepartment of Animal Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran.
Rienk NieuwlandLaboratory of Experimental Clinical Chemistry, Department of Clinical Chemistry, and Vesicle Observation Centre, Academic Medical Centre of the University of Amsterdam, Amsterdam, The Netherlands.
Jan LötvallKrefting Research Centre, Institute of Medicine at Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
Cecilia LässerKrefting Research Centre, Institute of Medicine at Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden. cecilia.lasser@gu.se.ORCID http://orcid.org/0000-0003-1279-1746
University of Gothenburg · SEUniversity of Tabriz · IRBD Biosciences (United States) · USUniversity of Amsterdam · NL

Funding

Cancerfonden CAN2014/844Hjärt-Lungfonden 20150588Vetenskapsrådet K2014-85X-22504-01-3
6 · The paper itself

Abstract

The isolation of extracellular vesicles (EVs) from blood is of great importance to understand the biological role of circulating EVs and to develop EVs as biomarkers of disease. Due to the concurrent presence of lipoprotein particles, however, blood is one of the most difficult body fluids to isolate EVs from. The aim of this study was to develop a robust method to isolate and characterise EVs from blood with minimal contamination by plasma proteins and lipoprotein particles. Plasma and serum were collected from healthy subjects, and EVs were isolated by size-exclusion chromatography (SEC), with most particles being present in fractions 8-12, while the bulk of the plasma proteins was present in fractions 11-28. Vesicle markers peaked in fractions 7-11; however, the same fractions also contained lipoprotein particles. The purity of EVs was improved by combining a density cushion with SEC to further separate lipoprotein particles from the vesicles, which reduced the contamination of lipoprotein particles by 100-fold. Using this novel isolation procedure, a total of 1187 proteins were identified in plasma EVs by mass spectrometry, of which several proteins are known as EV-associated proteins but have hitherto not been identified in the previous proteomic studies of plasma EVs. This study shows that SEC alone is unable to completely separate plasma EVs from lipoprotein particles. However, combining SEC with a density cushion significantly improved the separation of EVs from lipoproteins and allowed for a detailed analysis of the proteome of plasma EVs, thus making blood a viable source for EV biomarker discovery.

Indexed as

BiomarkersBlood ProteinsBlotting, WesternChromatography, GelExtracellular VesiclesHumansLipoproteinsMass SpectrometryMicroscopy, ElectronProteomeProteomicsBiomarkersBlood ProteinsLipoproteinsProteomeDensity cushionExosomesExtracellular vesiclesLipoproteinsMass spectrometryPlasmaProteomicsSerumSize-exclusion chromatography

Identifiers

PMID29441425
PMCPMC6021463
OpenAlexW2789992655

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LicenceCC BY
Read underepoch 390

Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.