Evidence map›Paper›PMID 23050643›Full record

ArticleJournal of neurochemistry2012

Vascular neuroprotection via TrkB- and Akt-dependent cell survival signaling.

Shuzhen Guo, Angel T Som, Christian Waeber, Eng H Lo

Open access · bronzeAbstract read
In one paragraph

Article in Journal of neurochemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing 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

17 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Comparative transcriptome of neurons after oxygen-glucose deprivation: Potential differences in neuroprotection versus reperfusion.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2018
    Article
  6. Brain-derived neurotrophic factor secreted by the cerebral endothelium: A new actor of brain function?Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2018
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Targeting the neurovascular unit in brain trauma.CNS neuroscience & therapeutics · 2015
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
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

4 authors at 2 institutions in 1 country.

Shuzhen GuoNeuroprotection Research Laboratory, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA. Sguo@partners.org
Angel T Som
Christian Waeber
Eng H Lo
Massachusetts General Hospital · USHarvard University · US

Funding

Targeting ROCK for Neurogliovascular Plasticity & Remodeling After StrokeP01NS055104 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI LO, ENG H. · 2007 to 2018
$13.3M
Thrombolysis Profiles in tPA ResponseR01NS093415 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI LO, ENG H., NING, MINGMING · 2015 to 2019
$1.9M
NINDS NIH HHS P01 NS055104NINDS NIH HHS P01-NS55104NINDS NIH HHS R01 NS093415
6 · The paper itself

Abstract

The cerebral endothelium can be a vital source of signaling factors such as brain-derived neurotrophic factor that defends the neuronal parenchyma against stress and injury. But the underlying mechanisms remain to be fully defined. Here, we use cell models to ask how vascular neuroprotection is sustained. Human brain endothelial cells were grown in culture, and conditioned media were transferred to primary rat cortical neurons. Brain endothelial cell-conditioned media activated neuronal Akt signaling and protected neurons against hypoxia and oxygen-glucose deprivation. Blockade of Akt phosphorylation with the PI3-kinase inhibitor LY294002 negated this vascular neuroprotective effect. Upstream of Akt signaling, the brain-derived neurotrophic factor receptor TrkB (neurotrophic tyrosine kinase receptor, type 2) was involved because depletion with TrkB/Fc eliminated the ability of endothelial-conditioned media to protect neurons against hypoxia. Downstream of Akt signaling, activation of GSK-3β (glycogen synthase kinase 3 beta), caspase 9, caspase 3 and Bad pathways were detected. Taken together, these findings suggest that the molecular basis for vascular neuroprotection involves TrkB-Akt signaling that ameliorates neuronal apoptosis. Further investigation of these mechanisms may reveal new approaches for augmenting endogenous vascular neuroprotection in stroke, brain injury, and neurodegeneration.

Indexed as

Analysis of VarianceAnimalsCell HypoxiaCells, CulturedCell SurvivalCerebral CortexChromonesCulture Media, ConditionedEmbryo, MammalianEndothelial CellsEnzyme InhibitorsGlucoseGlycogen Synthase Kinase 3Glycogen Synthase Kinase 3 betaHumansHypoxia2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-oneChromonesCulture Media, ConditionedEnzyme InhibitorsGlucoseGlycogen Synthase Kinase 3Glycogen Synthase Kinase 3 betaGSK3B protein, humanGsk3b protein, ratMorpholinesNeuroprotective AgentsProto-Oncogene Proteins c-aktReceptor, trkB

Identifiers

PMID23050643
PMCPMC3503457
OpenAlexW1989013244

What OpenQuestion holds

Textmetadata
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.