Evidence map›Paper›PMID 32014002›Full record

ArticleJournal of neuroinflammation2020

Bone mesenchymal stem cell-derived exosomal microRNA-29b-3p prevents hypoxic-ischemic injury in rat brain by activating the PTEN-mediated Akt signaling pathway.

Kun Hou, Guichen Li, Jinchuan Zhao, Baofeng Xu, Yang Zhang, Jinlu Yu, Kan Xu

RetractedErratum issuedOpen access · goldAbstract readRetracted Publication
In one paragraph

Article in Journal of neuroinflammation, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 50 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 3 pooled it
6.9field-weighted citation impact, top 2% 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

50 citing papers in PubMed, 3 syntheses or guidelines pooled it, 99 citations in OpenAlex.

  1. Pooled it
  2. Exosomes in pathogenesis, diagnosis, and therapy of ischemic stroke.Frontiers in bioengineering and biotechnology · 2022
    Pooled it
  3. Pooled it
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Understanding the Molecular Mechanisms of HCombinatorial chemistry & high throughput screening · 2025
    Article
  11. Review
  12. Review
  13. Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Review
  19. Review
  20. Exosomes for angiogenesis induction in ischemic disorders.Journal of cellular and molecular medicine · 2023
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Kun HouDepartment of Neurosurgery, The First Hospital of Jilin University, No. 1 Xinmin Avenue, Changchun, 130021, Jilin, People's Republic of China.
Guichen LiDepartment of Neurology, The First Hospital of Jilin University, Changchun, 130021, People's Republic of China.
Jinchuan ZhaoDepartment of Neurosurgery, The First Hospital of Jilin University, No. 1 Xinmin Avenue, Changchun, 130021, Jilin, People's Republic of China.
Baofeng XuDepartment of Neurosurgery, The First Hospital of Jilin University, No. 1 Xinmin Avenue, Changchun, 130021, Jilin, People's Republic of China.
Yang ZhangDepartment of Neurosurgery, The First Hospital of Jilin University, No. 1 Xinmin Avenue, Changchun, 130021, Jilin, People's Republic of China.
Jinlu YuDepartment of Neurosurgery, The First Hospital of Jilin University, No. 1 Xinmin Avenue, Changchun, 130021, Jilin, People's Republic of China. jlyu@jlu.edu.cn.
Kan XuDepartment of Neurosurgery, The First Hospital of Jilin University, No. 1 Xinmin Avenue, Changchun, 130021, Jilin, People's Republic of China. xu_xukan@126.com.
First Hospital of Jilin University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMesenchymal stem cells (MSCs) are suspected to exert neuroprotective effects in brain injury, in part through the secretion of extracellular vesicles like exosomes containing bioactive compounds. We now investigate the mechanism by which bone marrow MSCs (BMSCs)-derived exosomes harboring the small non-coding RNA miR-29b-3p protect against hypoxic-ischemic brain injury in rats.

methodsWe established a rat model of middle cerebral artery occlusion (MCAO) and primary cortical neuron or brain microvascular endothelial cell (BMEC) models of oxygen and glucose deprivation (OGD). Exosomes were isolated from the culture medium of BMSCs. We treated the MCAO rats with BMSC-derived exosomes in vivo, and likewise the OGD-treated neurons and BMECs in vitro. We then measured apoptosis- and angiogenesis-related features using TUNEL and CD31 immunohistochemical staining and in vitro Matrigel angiogenesis assays.

resultsThe dual luciferase reporter gene assay showed that miR-29b-3p targeted the protein phosphatase and tensin homolog (PTEN). miR-29b-3p was downregulated and PTEN was upregulated in the brain of MCAO rats and in OGD-treated cultured neurons. MCAO rats and OGD-treated neurons showed promoted apoptosis and decreased angiogenesis, but overexpression of miR-29b-3p or silencing of PTEN could reverse these alterations. Furthermore, miR-29b-3p could negatively regulate PTEN and activate the Akt signaling pathway. BMSCs-derived exosomes also exerted protective effects against apoptosis of OGD neurons and cell apoptosis in the brain samples from MCAO rats, where we also observed promotion of angiogenesis.

conclusionBMSC-derived exosomal miR-29b-3p ameliorates ischemic brain injury by promoting angiogenesis and suppressing neuronal apoptosis, a finding which may be of great significance in the treatment of hypoxic-ischemic brain injury.

Indexed as

AnimalsApoptosisEndothelial CellsExosomesHypoxia-Ischemia, BrainInfarction, Middle Cerebral ArteryMesenchymal Stem CellsMicroRNAsNeuronsProto-Oncogene Proteins c-aktPTEN PhosphohydrolaseRatsSignal TransductionMicroRNAsMIRN29a microRNA, humanProto-Oncogene Proteins c-aktPTEN PhosphohydrolaseAkt signaling pathwayAngiogenesisBone mesenchymal stem cellsExosomeHypoxic-ischemic brain injurymicroRNA-29b-3pPTEN

Identifiers

PMID32014002
PMCPMC6998092
OpenAlexW4205692110

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.