Evidence map›Paper›PMID 20492459›Full record

ArticleJournal of thrombosis and haemostasis : JTH2010

Plasminogen activator inhibitor-1 and vitronectin expression level and stoichiometry regulate vascular smooth muscle cell migration through physiological collagen matrices.

N Garg, N Goyal, T L Strawn, J Wu, K M Mann, D A Lawrence, W P Fay

Open access · bronzeAbstract read
In one paragraph

Article in Journal of thrombosis and haemostasis : JTH, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.0field-weighted citation impact, top 23% 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

21 citing papers in PubMed, 37 citations in OpenAlex.

  1. Article
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  5. Identification ofCancers · 2019
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  9. Resolving distinct molecular origins for copper effects on PAI-1.Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry · 2017
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  14. Chemical Antagonists of Plasminogen Activator Inhibitor-1: Mechanisms of Action and Therapeutic Potential in Vascular Disease.Journal of molecular and genetic medicine : an international journal of biomedical research · 2014
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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

7 authors at 2 institutions in 1 country.

N GargDepartment of Internal Medicine, University of Missouri School of Medicine and Research Service, Harry S. Truman Memorial Veterans Affairs Hospital, Columbia, MO, USA.
N Goyal
T L Strawn
J Wu
K M Mann
D A Lawrence
W P Fay
University of Missouri · USUniversity of Michigan–Ann Arbor · US

Funding

TRANSGENIC MODELS FOR THE STUDY OF FACTOR V FUNCTIONP01HL057346 · NHLBI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI GINSBURG, DAVID · 1997 to 2013
$19.9M
tPA and LRP in StrokeP01HL054710 · NHLBI · UNIVERSITY OF MARYLAND BALTIMORE · PI ZHANG, LI · 1996 to 2011
$17.3M
Unraveling the role of tPA in the neurovascular unitR01HL055374 · NHLBI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI David Antonetti, Daniel A Lawrence · 1995 to 2026
$8.6M
Thrombotic/Fibrinolytic Balance in Cardiac Transplant VasculopathyP01HL089407 · NHLBI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI LAWRENCE, DANIEL A · 2008 to 2012
$7.9M
Roles of Plasminogen Activator Inhibitor-1 and Vitronectin in Failure of CoronaryR01HL095951 · NHLBI · UNIVERSITY OF MISSOURI-COLUMBIA · PI FAY, WILLIAM P · 2010 to 2013
$1.5M
NHLBI NIH HHS HL54710NHLBI NIH HHS HL55374NHLBI NIH HHS HL57346NHLBI NIH HHS HL89407NHLBI NIH HHS P01 HL054710NHLBI NIH HHS P01 HL057346NHLBI NIH HHS P01 HL089407NHLBI NIH HHS R01 HL055374NHLBI NIH HHS R01 HL095951
6 · The paper itself

Abstract

backgroundVascular smooth muscle cell (VSMC) migration is a critical process in arterial remodeling. Purified plasminogen activator inhibitor-1 (PAI-1) is reported to both promote and inhibit VSMC migration on two-dimensional (D) surfaces.

objectiveTo determine the effects of PAI-1 and vitronectin (VN) expressed by VSMC themselves on migration through physiological collagen matrices.

methodsWe studied migration of wild-type (WT), PAI-1-deficient, VN-deficient, PAI-1/VN doubly-deficient (DKO) and PAI-1-transgenic (Tg) VSMC through three-D collagen gels.

resultsWT VSMC migrated significantly slower than PAI-1- and VN-deficient VSMC, but significantly faster than DKO VSMC. Experiments with recombinant PAI-1 suggested that basal VSMC PAI-1 expression inhibits migration by binding VN, which is secreted by VSMC and binds collagen. However, PAI-1-over-expressing Tg VSMC migrated faster than WT VSMC. Reconstitution experiments with recombinant PAI-1 mutants suggested that the pro-migratory effect of PAI-1 over-expression required its anti-plasminogen activator (PA) and LDL receptor-related protein (LRP) binding functions, but not VN binding. While promoting VSMC migration in the absence of PAI-1, VN inhibited the pro-migratory effect of active PAI-1.

conclusionsIn isolation, VN and PAI-1 are each pro-migratory. However, via formation of a high-affinity, non-motogenic complex, PAI-1 and VN each buffers the other's pro-migratory effect. The level of PAI-1 expression by VSMC and the concentration of VN in extracellular matrix are critical determinants of whether PAI-1 and VN promote or inhibit migration. These findings help to rectify previously conflicting reports and suggest that PAI-1/VN stoichiometry plays an important role in VSMC migration and vascular remodeling.

Indexed as

Gene Expression RegulationAnimalsAortaCell MovementCollagenGelsHumansLow Density Lipoprotein Receptor-Related Protein-1MiceMice, Inbred C57BLMice, TransgenicMuscle, SmoothMuscle, Smooth, VascularPlasminogen Activator Inhibitor 1VitronectinCollagenGelsLow Density Lipoprotein Receptor-Related Protein-1Plasminogen Activator Inhibitor 1Vitronectin

Identifiers

PMID20492459
PMCPMC2941703
OpenAlexW1520699434

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

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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.