Evidence map›Paper›PMID 37800440›Full record

ArticleAdvanced healthcare materials2023

Assessing Extracellular Vesicles in Human Biofluids Using Flow-Based Analyzers.

Kevin Ho Wai Yim, Olga Krzyzaniak, Ala'a Al Hrout, Ben Peacock, Richard Chahwan

Abstract read
In one paragraph

Article in Advanced healthcare materials, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
–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

29 citing papers in PubMed.

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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

5 authors.

Kevin Ho Wai YimInstitute of Experimental Immunology, University of Zurich, Zurich, 8057, Switzerland.
Olga KrzyzaniakInstitute of Experimental Immunology, University of Zurich, Zurich, 8057, Switzerland.
Ala'a Al HroutInstitute of Experimental Immunology, University of Zurich, Zurich, 8057, Switzerland.
Ben PeacockNanoFCM, ltd., D6 Thane Rd, Nottingham, NG90 6BH, UK.
Richard ChahwanInstitute of Experimental Immunology, University of Zurich, Zurich, 8057, Switzerland.ORCID 0000-0002-8672-7790

Funding

Novartis Foundation 22B140Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung 310030_212553Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung 320030E_215576Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung 40B1-0_221565Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung CRSK-3_190550Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung IZSEZ0_204655Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung IZSEZ0_218166UZH-STWF F-41309-01-01Vontobel Stiftung 41309
6 · The paper itself

Abstract

Extracellular vesicles (EVs) are increasingly being analyzed by flow cytometry. Yet their minuscule size and low refractive index cause the scatter intensity of most EVs to fall below the detection limit of most flow cytometers. A new class of devices, known as spectral flow analyzers, are becoming standards in cell phenotyping studies, largely due to their unique capacity to detect a vast panel of markers with higher sensitivity for light scatter detection. Another class of devices, known as nano-analyzers, provides high-resolution detection of sub-micron-sized particles. Here, the EV phenotyping performance between the Aurora (Cytek) spectral cell analyzer and the NanoFCM (nFCM) nanoflow analyzer are compared. These two devices are specifically chosen given their lead in becoming gold standards in their respective fields. Immune cell-derived EVs remain poorly characterized despite their clinical potential. Therefore, B- and T-cell line-derived EVs and donor-matched human biofluid-derived EVs from plasma, urine, and saliva are used in combination with a panel of established immune markers for this comparative study. A comparative evaluation of both cytometry platforms is performed, discussing their potential and suitability for different applications. It is found that nFCM can accurately i) analyze small EVs (40-200 nm) matching the size accuracy of electron microscopy; ii) measure the concentration of a single EV particle per volume; iii) identify underrepresented EV marker subsets; and iv) provide co-localization of EV surface markers. It can also be shown that human sample biofluids have unique EV marker signatures that can have future clinical relevance. Finally, nFCM and Aurora have their unique strength, preferred fashion of data acquisition, and visualization to fit different research interests.

Indexed as

Extracellular VesiclesBiomarkersFlow CytometryHumansBiomarkersbiofluidsextracellular vesiclesliquid biopsiesnano-analyzersnanoFCM

Identifiers

PMID37800440
PMCPMC11469288

What OpenQuestion holds

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LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

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.