Evidence map›Paper›PMID 20224042›Full record

ArticleCirculation research2010

Matrix-specific protein kinase A signaling regulates p21-activated kinase activation by flow in endothelial cells.

Steven Daniel Funk, Arif Yurdagul, Jonette M Green, Krishna A Jhaveri, Martin Alexander Schwartz, A Wayne Orr

Abstract read
In one paragraph

Article in Circulation research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

35 citing papers in PubMed, 57 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Review
  5. Article
  6. Biochemical and mechanical signals in the lymphatic vasculature.Cellular and molecular life sciences : CMLS · 2021
    Review
  7. Sinner or Saint?: Nck Adaptor Proteins in Vascular Biology.Frontiers in cell and developmental biology · 2021
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Mechanosensing and fibrosis.The Journal of clinical investigation · 2018
    Review
  15. Integrin signaling in atherosclerosis.Cellular and molecular life sciences : CMLS · 2017
    Review
  16. Article
  17. Article
  18. Review
  19. Review
  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

6 authors at 1 institution in 1 country.

Steven Daniel FunkDepartment Cell Biology, Louisiana State University Health Sciences Center, Shreveport, LA 71130, USA.
Arif Yurdagul
Jonette M Green
Krishna A Jhaveri
Martin Alexander Schwartz
A Wayne Orr
Texas A&M Health Science Center · US

Funding

Integrins in the Endothelial Response to Fluid Shear StressR01HL075092 · NHLBI · YALE UNIVERSITY · PI SCHWARTZ, MARTIN A · 2004 to 2019
$5.1M
NHLBI NIH HHS R01 HL075092NHLBI NIH HHS R01 HL75092
6 · The paper itself

Abstract

rationaleAtherosclerosis is initiated by blood flow patterns that activate inflammatory pathways in endothelial cells. Activation of inflammatory signaling by fluid shear stress is highly dependent on the composition of the subendothelial extracellular matrix. The basement membrane proteins laminin and collagen found in normal vessels suppress flow-induced p21 activated kinase (PAK) and nuclear factor (NF)-kappaB activation. By contrast, the provisional matrix proteins fibronectin and fibrinogen found in wounded or inflamed vessels support flow-induced PAK and NF-kappaB activation. PAK mediates both flow-induced permeability and matrix-specific activation of NF-kappaB.

objectiveTo elucidate the mechanisms regulating matrix-specific PAK activation. METHODS AND

resultsWe now show that matrix composition does not affect the upstream pathway by which flow activates PAK (integrin activation, Rac). Instead, basement membrane proteins enhance flow-induced protein kinase (PK)A activation, which suppresses PAK. Inhibiting PKA restored flow-induced PAK and NF-kappaB activation in cells on basement membrane proteins, whereas stimulating PKA inhibited flow-induced activation of inflammatory signaling in cells on fibronectin. PKA suppressed inflammatory signaling through PAK inhibition. Activating PKA by injection of the prostacyclin analog iloprost reduced PAK activation and inflammatory gene expression at sites of disturbed flow in vivo, whereas inhibiting PKA by PKA inhibitor (PKI) injection enhanced PAK activation and inflammatory gene expression. Inhibiting PAK prevented the enhancement of inflammatory gene expression by PKI.

conclusionsBasement membrane proteins inhibit inflammatory signaling in endothelial cells via PKA-dependent inhibition of PAK.

Indexed as

Mechanotransduction, CellularAnimalsAnti-Inflammatory AgentsBasement MembraneCattlecdc42 GTP-Binding ProteinCells, CulturedCyclic AMP-Dependent Protein KinasesEndothelial CellsEnzyme ActivationEnzyme ActivatorsHumansIloprostInflammationInflammation MediatorsInjections, IntraperitonealAnti-Inflammatory Agentscdc42 GTP-Binding ProteinCyclic AMP-Dependent Protein KinasesEnzyme ActivatorsIloprostInflammation MediatorsIntegrinsNF-kappa Bp21-Activated KinasesProtein Kinase Inhibitorsrac GTP-Binding Proteins

Identifiers

PMID20224042
PMCPMC2862370
OpenAlexW2154131744

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.