Evidence map›Paper›PMID 38607062›Full record

ArticleCells2024

Enrichment, Characterization, and Proteomic Profiling of Small Extracellular Vesicles Derived from Human Limbal Mesenchymal Stromal Cells and Melanocytes.

Sebastian Kistenmacher, Melanie Schwämmle, Gottfried Martin, Eva Ulrich, Stefan Tholen, Oliver Schilling, Andreas Gießl, Ursula Schlötzer-Schrehardt, Felicitas Bucher, Günther Schlunck and 3 more

Open access · goldAbstract read
In one paragraph

Article in Cells, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

9 citing papers in PubMed, 7 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

13 authors at 2 institutions in 1 country.

Sebastian KistenmacherEye Center, Medical Center, Faculty of Medicine, University of Freiburg, Killianstrasse 5, 79106 Freiburg, Germany.
Melanie SchwämmleEye Center, Medical Center, Faculty of Medicine, University of Freiburg, Killianstrasse 5, 79106 Freiburg, Germany.
Gottfried MartinEye Center, Medical Center, Faculty of Medicine, University of Freiburg, Killianstrasse 5, 79106 Freiburg, Germany.
Eva UlrichEye Center, Medical Center, Faculty of Medicine, University of Freiburg, Killianstrasse 5, 79106 Freiburg, Germany.
Stefan TholenInstitute of Surgical Pathology, Faculty of Medicine, Freiburg, Medical Center, University of Freiburg, 79085 Freiburg im Breisgau, Germany.ORCID 0009-0008-4746-2356
Oliver SchillingInstitute of Surgical Pathology, Faculty of Medicine, Freiburg, Medical Center, University of Freiburg, 79085 Freiburg im Breisgau, Germany.
Andreas GießlDepartment of Ophthalmology, University Hospital Erlangen, Friedrich-Alexander-University of Erlan-gen-Nürnberg, Schwabachanlage 6, 91054 Erlangen, Germany.ORCID 0000-0002-9768-2049
Ursula Schlötzer-SchrehardtDepartment of Ophthalmology, University Hospital Erlangen, Friedrich-Alexander-University of Erlan-gen-Nürnberg, Schwabachanlage 6, 91054 Erlangen, Germany.ORCID 0000-0001-8423-7395
Felicitas BucherEye Center, Medical Center, Faculty of Medicine, University of Freiburg, Killianstrasse 5, 79106 Freiburg, Germany.ORCID 0000-0003-0081-1420
Günther SchlunckEye Center, Medical Center, Faculty of Medicine, University of Freiburg, Killianstrasse 5, 79106 Freiburg, Germany.ORCID 0000-0002-0355-7766
Irina NazarenkoInstitute for Infection Prevention and Hospital Epidemiology, Faculty of Medicine, Medical Center, University of Freiburg, 79106 Freiburg, Germany.ORCID 0000-0002-2633-1161
Thomas ReinhardEye Center, Medical Center, Faculty of Medicine, University of Freiburg, Killianstrasse 5, 79106 Freiburg, Germany.
Naresh PolisettiEye Center, Medical Center, Faculty of Medicine, University of Freiburg, Killianstrasse 5, 79106 Freiburg, Germany.ORCID 0000-0001-8669-0388
University of Freiburg · DEFriedrich-Alexander-Universität Erlangen-Nürnberg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Limbal epithelial progenitor cells (LEPC) rely on their niche environment for proper functionality and self-renewal. While extracellular vesicles (EV), specifically small EVs (sEV), have been proposed to support LEPC homeostasis, data on sEV derived from limbal niche cells like limbal mesenchymal stromal cells (LMSC) remain limited, and there are no studies on sEVs from limbal melanocytes (LM). In this study, we isolated sEV from conditioned media of LMSC and LM using a combination of tangential flow filtration and size exclusion chromatography and characterized them by nanoparticle tracking analysis, transmission electron microscopy, Western blot, multiplex bead arrays, and quantitative mass spectrometry. The internalization of sEV by LEPC was studied using flow cytometry and confocal microscopy. The isolated sEVs exhibited typical EV characteristics, including cell-specific markers such as CD90 for LMSC-sEV and Melan-A for LM-sEV. Bioinformatics analysis of the proteomic data suggested a significant role of sEVs in extracellular matrix deposition, with LMSC-derived sEV containing proteins involved in collagen remodeling and cell matrix adhesion, whereas LM-sEV proteins were implicated in other cellular bioprocesses such as cellular pigmentation and development. Moreover, fluorescently labeled LMSC-sEV and LM-sEV were taken up by LEPC and localized to their perinuclear compartment. These findings provide valuable insights into the complex role of sEV from niche cells in regulating the human limbal stem cell niche.

Indexed as

Extracellular VesiclesMesenchymal Stem CellsHumansMelanocytesProteomicsStem Cellsexosomesextracellular vesicleslimbal epithelial progenitor cellslimbal melanocyteslimbal mesenchymal stromal cellslimbal stem cell nicheproteomics

Identifiers

PMID38607062
PMCPMC11011788
OpenAlexW4393944541

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.