Evidence map›Paper›PMID 33897698›Full record

ArticleFrontiers in immunology2021

Membrane Particles Derived From Adipose Tissue Mesenchymal Stromal Cells Improve Endothelial Cell Barrier Integrity.

Ana Merino, Marta Sablik, Sander S Korevaar, Carmen López-Iglesias, Maitane Ortiz-Virumbrales, Carla C Baan, Eleuterio Lombardo, Martin J Hoogduijn

Open access · goldAbstract read
In one paragraph

Article in Frontiers in immunology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.9field-weighted citation impact, top 28% 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

8 citing papers in PubMed, 12 citations in OpenAlex.

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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

8 authors at 2 institutions in 1 country.

Ana MerinoNephrology and Transplantation, Department of Internal Medicine, Erasmus Medical Center, Rotterdam, Netherlands.
Marta SablikNephrology and Transplantation, Department of Internal Medicine, Erasmus Medical Center, Rotterdam, Netherlands.
Sander S KorevaarNephrology and Transplantation, Department of Internal Medicine, Erasmus Medical Center, Rotterdam, Netherlands.
Carmen López-IglesiasMicroscopy CORE Lab, Maastricht Multimodal Molecular Imaging Institute, FHML Maastricht University, Maastricht, Netherlands.
Maitane Ortiz-VirumbralesTakeda Madrid, Cell Therapy Technology Center, Madrid, Spain.
Carla C BaanNephrology and Transplantation, Department of Internal Medicine, Erasmus Medical Center, Rotterdam, Netherlands.
Eleuterio LombardoTakeda Madrid, Cell Therapy Technology Center, Madrid, Spain.
Martin J HoogduijnNephrology and Transplantation, Department of Internal Medicine, Erasmus Medical Center, Rotterdam, Netherlands.
Erasmus MC · NLMaastricht University · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Proinflammatory stimuli lead to endothelial injury, which results in pathologies such as cardiovascular diseases, autoimmune diseases, and contributes to alloimmune responses after organ transplantation. Both mesenchymal stromal cells (MSC) and the extracellular vesicles (EV) released by them are widely studied as regenerative therapy for the endothelium. However, for therapeutic application, the manipulation of living MSC and large-scale production of EV are major challenges. Membrane particles (MP) generated from MSC may be an alternative to the use of whole MSC or EV. MP are nanovesicles artificially generated from the membranes of MSC and possess some of the therapeutic properties of MSC. In the present study we investigated whether MP conserve the beneficial MSC effects on endothelial cell repair processes under inflammatory conditions. MP were generated by hypotonic shock and extrusion of MSC membranes. The average size of MP was 120 nm, and they showed a spherical shape. The effects of two ratios of MP (50,000; 100,000 MP per target cell) on human umbilical vein endothelial cells (HUVEC) were tested in a model of inflammation induced by TNFα. Confocal microscopy and flow cytometry showed that within 24 hours >90% of HUVEC had taken up MP. Moreover, MP ended up in the lysosomes of the HUVEC. In a co-culture system of monocytes and TNFα activated HUVEC, MP did not affect monocyte adherence to HUVEC, but reduced the transmigration of monocytes across the endothelial layer from 138 ± 61 monocytes per microscopic field in TNFα activated HUVEC to 61 ± 45 monocytes. TNFα stimulation induced a 2-fold increase in the permeability of the HUVEC monolayer measured by the translocation of FITC-dextran to the lower compartment of a transwell system. At a dose of 1:100,000 MP significantly decreased endothelial permeability (1.5-fold) respect to TNFα Stimulated HUVEC. Finally, MP enhanced the angiogenic potential of HUVEC in an

Indexed as

Adipose TissueCell AdhesionCell Membrane PermeabilityCells, CulturedCoculture TechniquesCryoelectron MicroscopyDNAExtracellular VesiclesHumansHuman Umbilical Vein Endothelial CellsMesenchymal Stem CellsMicroscopy, Electron, TransmissionMonocytesParticle SizeReverse Transcriptase Polymerase Chain ReactionRNADNARNAendothelial cellsimmune cell interactionmembrane particlesmesenchymal stromal cellsnanovesiclesregeneration

Identifiers

PMID33897698
PMCPMC8058477
OpenAlexW3141012901

What OpenQuestion holds

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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.