Evidence map›Paper›PMID 20639457›Full record

ArticleThe American journal of pathology2010

Endothelial alpha3beta1-integrin represses pathological angiogenesis and sustains endothelial-VEGF.

Rita Graça da Silva, Bernardo Tavora, Stephen D Robinson, Louise E Reynolds, Charles Szekeres, John Lamar, Sílvia Batista, Vassiliki Kostourou, Mitchel A Germain, Andrew R Reynolds and 9 more

Open access · bronzeAbstract read
In one paragraph

Article in The American journal of pathology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
3.5field-weighted citation impact, top 7% 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

37 citing papers in PubMed, 63 citations in OpenAlex.

  1. Review
  2. The epidermal integrin-mediated secretome regulates the skin microenvironment during tumorigenesis and repair.Matrix biology : journal of the International Society for Matrix Biology · 2024
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  6. Cell-specific expression and function of laminin at the neurovascular unit.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2022
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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

19 authors at 4 institutions in 2 countries.

Rita Graça da SilvaAdhesion and Angiogenesis Laboratory, Barts Institute of Cancer, Queen Mary University of London, London, UK.
Bernardo Tavora
Stephen D Robinson
Louise E Reynolds
Charles Szekeres
John Lamar
Sílvia Batista
Vassiliki Kostourou
Mitchel A Germain
Andrew R Reynolds
Dylan T Jones
Alan R Watson
Janet L Jones
Adrian Harris
Ian R Hart
M Luisa Iruela-Arispe
C Michael Dipersio
Jordan A Kreidberg
Kairbaan M Hodivala-Dilke
Queen Mary University of London · GBAlbany Medical Center Hospital · USCenter for Cancer Research · USUniversity of California, Los Angeles · US

Funding

Regulation of MMP-9 mRNA stability and tumor growth by alpha3 beta1 integrinR01CA129637 · NCI · ALBANY MEDICAL COLLEGE · PI DIPERSIO, C. MICHAEL · 2008 to 2020
$3.3M
Breast Cancer Now 2003:602Breast Cancer Now BREAST CANCER NOW RESEARCH CENTRECancer Research UK 12007NCI NIH HHS R01 CA129637
6 · The paper itself

Abstract

Integrin alpha3beta1 is a major receptor for laminin. The expression levels of laminins-8 and -10 in the basement membrane surrounding blood vessels are known to change during tumor angiogenesis. Although some studies have suggested that certain ligands of alpha3beta1 can affect angiogenesis either positively or negatively, either a direct in vivo role for alpha3beta1 in this process or its mechanism of action in endothelial cells during angiogenesis is still unknown. Because the global genetic ablation of alpha3-integrin results in an early lethal phenotype, we have generated conditional-knockout mice where alpha3 is deleted specifically in endothelial cells (ec-alpha3-/-). Here we show that ec-alpha3-/- mice are viable, fertile, and display enhanced tumor growth, elevated tumor angiogenesis, augmented hypoxia-induced retinal angiogenesis, and increased vascular endothelial growth factor (VEGF)-mediated neovascularization ex vivo and in vivo. Furthermore, our data provide a novel method by which an integrin may regulate angiogenesis. We show that alpha3beta1 is a positive regulator of endothelial-VEGF and that, surprisingly, the VEGF produced by endothelial cells can actually repress VEGF-receptor 2 (Flk-1) expression. These data, therefore, identify directly that endothelial alpha3beta1 negatively regulates pathological angiogenesis and implicate an unexpected role for low levels of endothelial-VEGF as an activator of neovascularization.

Indexed as

AnimalsBlotting, WesternEndothelial CellsEndothelium, VascularFemaleFlow CytometryHypoxiaImmunohistochemistryIntegrin alpha3beta1MaleMiceMice, KnockoutNeoplasm TransplantationNeovascularization, PathologicPolymerase Chain ReactionVascular Endothelial Growth Factor AIntegrin alpha3beta1Vascular Endothelial Growth Factor AVascular Endothelial Growth Factor Receptor-2

Identifiers

PMID20639457
PMCPMC2928983
OpenAlexW1987003519

What OpenQuestion holds

Textmetadata
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.