Evidence map›Paper›PMID 32944192›Full record

ArticleJournal of extracellular vesicles2020

Experimental artefacts can lead to misattribution of bioactivity from soluble mesenchymal stem cell paracrine factors to extracellular vesicles.

Thomas E Whittaker, Anika Nagelkerke, Valeria Nele, Ulrike Kauscher, Molly M Stevens

Open access · goldAbstract read
In one paragraph

Article in Journal of extracellular vesicles, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 1 pooled it
5.4field-weighted citation impact, top 3% 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

47 citing papers in PubMed, 1 synthesis or guideline pooled it, 86 citations in OpenAlex.

  1. Pooled it
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  9. Frontiers in immunology · 2025
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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 at 1 institution in 1 country.

Thomas E WhittakerDepartment of Materials, Imperial College London, London, UK.ORCID https://orcid.org/0000-0002-3181-4571
Anika NagelkerkeDepartment of Materials, Imperial College London, London, UK.
Valeria NeleDepartment of Materials, Imperial College London, London, UK.
Ulrike KauscherDepartment of Materials, Imperial College London, London, UK.
Molly M StevensDepartment of Materials, Imperial College London, London, UK.ORCID https://orcid.org/0000-0002-7335-266X
NIHR Imperial Biomedical Research Centre · GB

Funding

Medical Research Council MR/R015651/1
6 · The paper itself

Abstract

It has been demonstrated that some commonly used Extracellular Vesicle (EV) isolation techniques can lead to substantial contamination with non-EV factors. Whilst it has been established that this impacts the identification of biomarkers, the impact on apparent EV bioactivity has not been explored. Extracellular vesicles have been implicated as critical mediators of therapeutic human mesenchymal stem cell (hMSC) paracrine signalling. Isolated hMSC-EVs have been used to treat multiple

Indexed as

angiogenesiscontaminationexosomesExtracellular vesiclesmesenchymal stem cellmicrovesiclesparacrine effectpolymer precipitationpurificationsize exclusion

Identifiers

PMID32944192
PMCPMC7480412
OpenAlexW3080320570

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.