Evidence map›Paper›PMID 28900146›Full record

ArticleScientific reports2017

A bead-assisted flow cytometry method for the semi-quantitative analysis of Extracellular Vesicles.

Henar Suárez, Ana Gámez-Valero, Raquel Reyes, Soraya López-Martín, María Josefa Rodríguez, José L Carrascosa, Carlos Cabañas, Francesc E Borràs, María Yáñez-Mó

Abstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

81 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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21 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

9 authors.

Henar SuárezInstituto de Investigación Sanitaria La Princesa (IIS-IP), Madrid, Spain.
Ana Gámez-ValeroREMAR-IVECAT Group, Health Science Research Institute Germans Trias i Pujol, Can Ruti Campus, Badalona, Spain.
Raquel ReyesCentro de Biología Molecular Severo Ochoa, Madrid, Spain.
Soraya López-MartínInstituto de Investigación Sanitaria La Princesa (IIS-IP), Madrid, Spain.
María Josefa RodríguezDepartment of Macromolecular Structures, Centro Nacional de Biotecnología-Consejo Superior de Investigaciones Científicas (CNB-CSIC), Madrid, Spain.
José L CarrascosaDepartment of Macromolecular Structures, Centro Nacional de Biotecnología-Consejo Superior de Investigaciones Científicas (CNB-CSIC), Madrid, Spain.
Carlos CabañasCentro de Biología Molecular Severo Ochoa, Madrid, Spain.
Francesc E BorràsREMAR-IVECAT Group, Health Science Research Institute Germans Trias i Pujol, Can Ruti Campus, Badalona, Spain. feborras@igtp.cat.
María Yáñez-MóInstituto de Investigación Sanitaria La Princesa (IIS-IP), Madrid, Spain. maria.yannez@uam.es.ORCID 0000-0001-7484-2866

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Most experimental approaches commonly employed for the characterization and quantitation of EVs are time consuming, require of specialized instrumentation and often are rather inaccurate. To circumvent the caveats imposed by EV small size, we used general and specific membrane markers in bead assisted flow cytometry, to provide a semi-quantitative measure of EV content in a given sample. EVs were isolated from in vitro cultured cells-conditioned medium and biological fluids by size exclusion chromatography and coupled to latex beads to allow their detection by standard flow cytometers. Our analyses demonstrate a linear correlation between EV concentration and Mean Fluorescence Intensity values in samples cleared of protein contaminants. Comparison with one of the most widespread method such as NTA, suggests a similar linear range and reliable accuracy to detect saturation. However, although detection of the different biomarkers is feasible when tested on ultracentrifugation-enriched samples, protein contamination impairs quantitation of this type of samples by bead-based flow cytometry. Thus, we provide evidence that bead-assisted flow cytometry method is an accurate and reliable method for the semiquantitative bulk analysis of EVs, which could be easily implemented in most laboratories.

Indexed as

Flow CytometryBiomarkersCell LineChromatography, GelExtracellular VesiclesHumansNanoparticlesBiomarkers

Identifiers

PMID28900146
PMCPMC5595788

What OpenQuestion holds

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LicenceCC BY
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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.