Evidence map›Paper›PMID 35639473›Full record

ArticleJCI insight2022

Bioactive extracellular vesicles from a subset of endothelial progenitor cells rescue retinal ischemia and neurodegeneration.

Kyle V Marra, Edith Aguilar, Wei Guoqin, Ayumi Usui-Ouchi, Yochiro Ideguchi, Susumu Sakimoto, Martin Friedlander

Open access · goldAbstract read
In one paragraph

Article in JCI insight, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

11 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
  2. Therapeutic Exosomes CarryingBiomedicines · 2026
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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

7 authors at 2 institutions in 2 countries.

Kyle V MarraDepartment of Molecular Medicine, The Scripps Research Institute, La Jolla, California, USA.
Edith AguilarDepartment of Molecular Medicine, The Scripps Research Institute, La Jolla, California, USA.
Wei GuoqinDepartment of Molecular Medicine, The Scripps Research Institute, La Jolla, California, USA.
Ayumi Usui-OuchiDepartment of Molecular Medicine, The Scripps Research Institute, La Jolla, California, USA.
Yochiro IdeguchiDepartment of Molecular Medicine, The Scripps Research Institute, La Jolla, California, USA.
Susumu SakimotoDepartment of Ophthalmology, Osaka University Graduate School of Medicine, Osaka, Japan.
Martin FriedlanderDepartment of Molecular Medicine, The Scripps Research Institute, La Jolla, California, USA.
Scripps Research Institute · USThe University of Osaka · JP

Funding

MEDICAL SCIENTIST TRAINING PROGRAMT32GM007198 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI CHI, NEIL C, INSEL, PAUL A · 1985 to 2024
$29.3M
INTEGRINS AND OCULAR ANGIOGENESISR01EY011254 · NEI · SCRIPPS RESEARCH INSTITUTE, THE · PI FRIEDLANDER, MARTIN · 1996 to 2016
$11.5M
Extracellular vesicles from endothelial colony forming cells as paracrine mediators of neurovasculotrophic repair of the retinaF30EY029141 · NEI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI MARRA, KYLE VINCENT · 2018 to 2023
$216k
MANTA ViewSizer 3011 Nanoparticle Characterization SystemS10OD023555 · OD · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI JOKERST, JESSE VINCENT · 2018 to 2018
$137k
NEI NIH HHS F30 EY029141NEI NIH HHS R01 EY011254NIGMS NIH HHS T32 GM007198NIH HHS S10 OD023555
6 · The paper itself

Abstract

Disruption of the neurovascular unit (NVU) underlies the pathophysiology of various CNS diseases. One strategy to repair NVU dysfunction uses stem/progenitor cells to provide trophic support to the NVU's functionally coupled and interdependent vasculature and surrounding CNS parenchyma. A subset of endothelial progenitor cells, endothelial colony-forming cells (ECFCs) with high expression of the CD44 hyaluronan receptor (CD44hi), provides such neurovasculotrophic support via a paracrine mechanism. Here, we report that bioactive extracellular vesicles from CD44hi ECFCs (EVshi) are paracrine mediators, recapitulating the effects of intact cell therapy in murine models of ischemic/neurodegenerative retinopathy; vesicles from ECFCs with low expression levels of CD44 (EVslo) were ineffective. Small RNA sequencing comparing the microRNA cargo from EVshi and EVslo identified candidate microRNAs that contribute to these effects. EVshi may be used to repair NVU dysfunction through multiple mechanisms to stabilize hypoxic vasculature, promote vascular growth, and support neural cells.

Indexed as

Endothelial Progenitor CellsExtracellular VesiclesMicroRNAsRetinal DiseasesAnimalsIschemiaMiceNeovascularization, PhysiologicMicroRNAsAdult stem cellsNeurodegenerationOphthalmologyRetinopathyVascular Biology

Identifiers

PMID35639473
PMCPMC9309054
OpenAlexW4282021496

What OpenQuestion holds

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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.