Evidence map›Paper›PMID 27677799›Full record

ArticleCell transplantation2017

Secondary Release of Exosomes From Astrocytes Contributes to the Increase in Neural Plasticity and Improvement of Functional Recovery After Stroke in Rats Treated With Exosomes Harvested From MicroRNA 133b-Overexpressing Multipotent Mesenchymal Stromal Cells.

Hongqi Xin, Fengjie Wang, Yanfeng Li, Qing-E Lu, Wing Lee Cheung, Yi Zhang, Zheng Gang Zhang, Michael Chopp

Open access · bronzeAbstract read
In one paragraph

Article in Cell transplantation, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 165 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
165citing papers in PubMed, 5 pooled it
11.7field-weighted citation impact, top 1% 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

165 citing papers in PubMed, 5 syntheses or guidelines pooled it, 265 citations in OpenAlex.

  1. Pooled it
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  3. Pleiotropic Effects of Exosomes as a Therapy for Stroke Recovery.International journal of molecular sciences · 2020
    Pooled it
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  6. Review
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  9. Exercise-induced extracellular vesicles derived from platelet-rich plasma improved recovery after ischemic stroke.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2026
    Article
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  18. Nanobiotechnologies for stroke treatment.Nanomedicine (London, England) · 2025
    Review
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  20. Review

105 more citing papers are in PubMed but not listed here.

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 1 institution in 1 country.

Hongqi Xin
Fengjie Wang
Yanfeng Li
Qing-E Lu
Wing Lee Cheung
Yi Zhang
Zheng Gang Zhang
Michael Chopp
Henry Ford Hospital · US

Funding

miR-17-92 exosome treatment of strokeR01NS088656 · NINDS · HENRY FORD HEALTH SYSTEM · PI CHOPP, MICHAEL · 2015 to 2019
$1.6M
MicroRNAs and neurogenesis after strokeR01NS075156 · NINDS · HENRY FORD HEALTH SYSTEM · PI ZHANG, ZHENG GANG · 2011 to 2015
$1.6M
Exosome transfer of miR-133b mediates MSC induced neurological recovery after strR01NS081189 · NINDS · HENRY FORD HEALTH SYSTEM · PI XIN, HONGQI · 2013 to 2016
$1.2M
NINDS NIH HHS R01 NS075156NINDS NIH HHS R01 NS081189NINDS NIH HHS R01 NS088656
6 · The paper itself

Abstract

We previously demonstrated that multipotent mesenchymal stromal cells (MSCs) that overexpress microRNA 133b (miR-133b) significantly improve functional recovery in rats subjected to middle cerebral artery occlusion (MCAO) compared with naive MSCs and that exosomes generated from naive MSCs mediate the therapeutic benefits of MSC therapy for stroke. Here we investigated whether exosomes isolated from miR-133b-overexpressing MSCs (Ex-miR-133b+) exert amplified therapeutic effects. Rats subjected to 2 h of MCAO were intra-arterially injected with Ex-miR-133b+, exosomes from MSCs infected by blank vector (Ex-Con), or phosphate-buffered saline (PBS) and were sacrificed 28 days after MCAO. Compared with the PBS treatment, both exosome treatment groups exhibited significant improvement of functional recovery. Ex-miR-133b+ treatment significantly increased functional improvement and neurite remodeling/brain plasticity in the ischemic boundary area compared with the Ex-Con treatment. Treatment with Ex-miR-133b+ also significantly increased brain exosome content compared with Ex-Con treatment. To elucidate mechanisms underlying the enhanced therapeutic effects of Ex-miR-133b+, astrocytes cultured under oxygen- and glucose-deprived (OGD) conditions were incubated with exosomes harvested from naive MSCs (Ex-Naive), miR-133b downregulated MSCs (Ex-miR-133b-), and Ex-miR-133b+. Compared with the Ex-Naive treatment, Ex-miR-133b+ significantly increased exosomes released by OGD astrocytes, whereas Ex-miR-133b- significantly decreased the release. Also, exosomes harvested from OGD astrocytes treated with Ex-miR-133b+ significantly increased neurite branching and elongation of cultured cortical embryonic rat neurons compared with the exosomes from OGD astrocytes subjected to Ex-Con. Our data suggest that exosomes harvested from miR-133b-overexpressing MSCs improve neural plasticity and functional recovery after stroke with a contribution from a stimulated secondary release of neurite-promoting exosomes from astrocytes.

Indexed as

AnimalsAstrocytesExosomesMaleMesenchymal Stem CellsMesenchymal Stem Cell TransplantationMicroRNAsNeuronal PlasticityRatsRats, WistarRecovery of FunctionStrokeMicroRNAs

Identifiers

PMID27677799
PMCPMC5303172
OpenAlexW2527897220

What OpenQuestion holds

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LicenceTDM
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.