Evidence map›Paper›PMID 23028886›Full record

ArticlePloS one2012

Perlecan Domain V induces VEGf secretion in brain endothelial cells through integrin α5β1 and ERK-dependent signaling pathways.

Douglas N Clarke, Abraham Al Ahmad, Boyeon Lee, Christi Parham, Lisa Auckland, Andrezj Fertala, Michael Kahle, Courtney S Shaw, Jill Roberts, Gregory J Bix

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

33 citing papers in PubMed, 50 citations in OpenAlex.

  1. Review
  2. Article
  3. Biomimetic strategies for the deputization of proteoglycan functions.Frontiers in cell and developmental biology · 2024
    Review
  4. Article
  5. Review
  6. Review
  7. Review
  8. Review
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Roles of blood-brain barrier integrins and extracellular matrix in stroke.American journal of physiology. Cell physiology · 2019
    Review
  15. Review
  16. Article
  17. Article
  18. Mice deficient in endothelial α5 integrin are profoundly resistant to experimental ischemic stroke.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2017
    Article
  19. Article
  20. 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

10 authors at 4 institutions in 1 country.

Douglas N ClarkeDepartment of Molecular & Cellular Medicine, Texas A&M Health Science Center, College Station, Texas, USA.
Abraham Al Ahmad
Boyeon Lee
Christi Parham
Lisa Auckland
Andrezj Fertala
Michael Kahle
Courtney S Shaw
Jill Roberts
Gregory J Bix
Texas A&M Health Science Center · USUniversity of Kentucky · USHarvard University · USThomas Jefferson University · US

Funding

Perlecan Domain V is a Novel Promoter of Brain Repair after StrokeR01NS065842 · NINDS · UNIVERSITY OF KENTUCKY · PI BIX, GREGORY JAYE · 2010 to 2019
$3.2M
Site Specific Interactions and Collagen Self AssemblyR01AR048544 · NIAMS · THOMAS JEFFERSON UNIVERSITY · PI FERTALA, ANDRZEJ · 2002 to 2015
$2.6M
Altered Matrix-Cells and Intermolecular InteractionsR01AR049537 · NIAMS · THOMAS JEFFERSON UNIVERSITY · PI FERTALA, ANDRZEJ · 2002 to 2010
$2.6M
NIAMS NIH HHS 5R01AR048544NIAMS NIH HHS 5R01AR049537-06NIAMS NIH HHS R01 AR048544NIAMS NIH HHS R01 AR049537NINDS NIH HHS R01 NS065842NINDS NIH HHS R01NS065842-01A01
6 · The paper itself

Abstract

Perlecan Domain V (DV) promotes brain angiogenesis by inducing VEGF release from brain endothelial cells (BECs) following stroke. In this study, we define the specific mechanism of DV interaction with the α(5)β(1) integrin, identify the downstream signal transduction pathway, and further investigate the functional significance of resultant VEGF release. Interestingly, we found that the LG3 portion of DV, which has been suggested to possess most of DV's angio-modulatory activity outside of the brain, binds poorly to α(5)β(1) and induces less BEC proliferation compared to full length DV. Additionally, we implicate DV's DGR sequence as an important element for the interaction of DV with α(5)β(1). Furthermore, we investigated the importance of AKT and ERK signaling in DV-induced VEGF expression and secretion. We show that DV increases the phosphorylation of ERK, which leads to subsequent activation and stabilization of eIF4E and HIF-1α. Inhibition of ERK activity by U0126 suppressed DV-induced expression and secretion of VEGR in BECs. While DV was capable of phosphorylating AKT we show that AKT phosphorylation does not play a role in DV's induction of VEGF expression or secretion using two separate inhibitors, LY294002 and Akt IV. Lastly, we demonstrate that VEGF activity is critical for DV increases in BEC proliferation, as well as angiogenesis in a BEC-neuronal co-culture system. Collectively, our findings expand our understanding of DV's mechanism of action on BECs, and further support its potential as a novel stroke therapy.

Indexed as

AnimalsBrainButadienesCell ProliferationCells, CulturedChromonesEndothelial CellsEndothelium, VascularEnzyme InhibitorsEukaryotic Initiation Factor-4EGene Expression RegulationHeparan Sulfate ProteoglycansHumansHypoxia-Inducible Factor 1, alpha SubunitIntegrin alpha5beta1MAP Kinase Signaling System2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-oneButadienesChromonesEnzyme InhibitorsEukaryotic Initiation Factor-4EHeparan Sulfate ProteoglycansHif1a protein, mouseHypoxia-Inducible Factor 1, alpha SubunitIntegrin alpha5beta1MorpholinesNitrilesperlecanProto-Oncogene Proteins c-aktReceptors, Vascular Endothelial Growth FactorRecombinant ProteinsU 0126Vascular Endothelial Growth Factor Avascular endothelial growth factor A, mouse

Identifiers

PMID23028886
PMCPMC3444475
OpenAlexW2033142272

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.