Evidence map›Paper›PMID 25601765›Full record

ArticleScientific reports2015

Semaphorin3A elevates vascular permeability and contributes to cerebral ischemia-induced brain damage.

Sheng Tao Hou, Ladan Nilchi, Xuesheng Li, Sandhya Gangaraju, Susan X Jiang, Amy Aylsworth, Robert Monette, Jacqueline Slinn

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

52 citing papers in PubMed, 75 citations in OpenAlex.

  1. Article
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  9. Inhibition of EphA4 reduces vasogenic edema after experimental stroke in mice by protecting the blood-brain barrier integrity.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024
    Article
  10. The Involvement of Semaphorins in the Pathogenesis of Skin Diseases.International journal of molecular sciences · 2023
    Review
  11. Article
  12. β-Actin: An Emerging Biomarker in Ischemic Stroke.Cellular and molecular neurobiology · 2023
    Review
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Role of Semaphorins in Ischemic Stroke.Frontiers in molecular neuroscience · 2022
    Review
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 3 institutions in 2 countries.

Sheng Tao Hou1] Department of Biology, South University of Science and Technology of China, 1088 Xueyuan Blvd, Nanshan District, Shenzhen, P.R. China, 518055 [2] Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, Ontario, Canada [3] Human Health Therapeutics Portfolio, National Research Council Canada, 1200 Montreal Road, Bldg M54, Ottawa, Ontario, K1A 0R6, Canada.
Ladan Nilchi1] Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, Ontario, Canada [2] Human Health Therapeutics Portfolio, National Research Council Canada, 1200 Montreal Road, Bldg M54, Ottawa, Ontario, K1A 0R6, Canada.
Xuesheng Li1] Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, Ontario, Canada [2] Human Health Therapeutics Portfolio, National Research Council Canada, 1200 Montreal Road, Bldg M54, Ottawa, Ontario, K1A 0R6, Canada.
Sandhya GangarajuHuman Health Therapeutics Portfolio, National Research Council Canada, 1200 Montreal Road, Bldg M54, Ottawa, Ontario, K1A 0R6, Canada.
Susan X JiangHuman Health Therapeutics Portfolio, National Research Council Canada, 1200 Montreal Road, Bldg M54, Ottawa, Ontario, K1A 0R6, Canada.
Amy AylsworthHuman Health Therapeutics Portfolio, National Research Council Canada, 1200 Montreal Road, Bldg M54, Ottawa, Ontario, K1A 0R6, Canada.
Robert MonetteHuman Health Therapeutics Portfolio, National Research Council Canada, 1200 Montreal Road, Bldg M54, Ottawa, Ontario, K1A 0R6, Canada.
Jacqueline SlinnHuman Health Therapeutics Portfolio, National Research Council Canada, 1200 Montreal Road, Bldg M54, Ottawa, Ontario, K1A 0R6, Canada.
National Research Council Canada · CAUniversity of Ottawa · CASouthern University of Science and Technology · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Semaphorin 3A (Sema3A) increased significantly in mouse brain following cerebral ischemia. However, the role of Sema3A in stroke brain remains unknown. Our aim was to determine wether Sema3A functions as a vascular permeability factor and contributes to ischemic brain damage. Recombinant Sema3A injected intradermally to mouse skin, or stereotactically into the cerebral cortex, caused dose- and time-dependent increases in vascular permeability, with a degree comparable to that caused by injection of a known vascular permeability factor vascular endothelial growth factor receptors (VEGF). Application of Sema3A to cultured endothelial cells caused disorganization of F-actin stress fibre bundles and increased endothelial monolayer permeability, confirming Sema3A as a permeability factor. Sema3A-mediated F-actin changes in endothelial cells were through binding to the neuropilin2/VEGFR1 receptor complex, which in turn directly activates Mical2, a F-actin modulator. Down-regulation of Mical2, using specific siRNA, alleviated Sema3A-induced F-actin disorganization, cellular morphology changes and endothelial permeability. Importantly, ablation of Sema3A expression, cerebrovascular permeability and brain damage were significantly reduced in response to transient middle cerebral artery occlusion (tMCAO) and in a mouse model of cerebral ischemia/haemorrhagic transformation. Together, these studies demonstrated that Sema3A is a key mediator of cerebrovascular permeability and contributes to brain damage caused by cerebral ischemia.

Indexed as

ActinsAnimalsApoptosisBrain InjuriesBrain IschemiaCapillary PermeabilityCerebral CortexCytoskeletal ProteinsDisease Models, AnimalHumansMiceMicrofilament ProteinsNeuropilin-2Semaphorin-3AStrokeVascular Endothelial Growth Factor Receptor-1ActinsCytoskeletal ProteinsJRAB protein, mouseMicrofilament ProteinsNeuropilin-2Sema3a protein, mouseSemaphorin-3AVascular Endothelial Growth Factor Receptor-1

Identifiers

PMID25601765
PMCPMC4298747
OpenAlexW2015846798

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
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 Socratic graph.