Evidence map›Paper›PMID 21596751›Full record

ArticleThe Journal of biological chemistry2011

Endorepellin, the angiostatic module of perlecan, interacts with both the α2β1 integrin and vascular endothelial growth factor receptor 2 (VEGFR2): a dual receptor antagonism.

Atul Goyal, Nutan Pal, Matthew Concannon, Matthew Paul, Mike Doran, Chiara Poluzzi, Kiyotoshi Sekiguchi, John M Whitelock, Thomas Neill, Renato V Iozzo

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed
4.7field-weighted citation impact, top 4% 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

73 citing papers in PubMed, 109 citations in OpenAlex.

  1. Review
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  5. X-Ray Exposure Induces Structural Changes in Human Breast Proteins.International journal of molecular sciences · 2025
    Article
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  16. A functional outside-in signaling network of proteoglycans and matrix molecules regulating autophagy.Matrix biology : journal of the International Society for Matrix Biology · 2021
    Article
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  20. Proteoglycan-driven Autophagy: A Nutrient-independent Mechanism to Control Intracellular Catabolism.The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society · 2020
    Review

13 more citing papers are in PubMed but not listed here.

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 3 countries.

Atul GoyalDepartment of Pathology, Anatomy, and Cell Biology, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.
Nutan Pal
Matthew Concannon
Matthew Paul
Mike Doran
Chiara Poluzzi
Kiyotoshi Sekiguchi
John M Whitelock
Thomas Neill
Renato V Iozzo
Sidney Kimmel Cancer Center · USThomas Jefferson University · USOsaka University · JPUNSW Sydney · AU

Funding

Alcohol Tissue InjuryT32AA007463 · NIAAA · THOMAS JEFFERSON UNIVERSITY · PI HOEK, JOANNES B, VADIGEPALLI, RAJANIKANTH · 1985 to 2021
$9.1M
NEOPLASTIC MODULATION OF PROTEOGLYCAN METABOLISMR01CA039481 · NCI · UNIVERSITY OF PENNSYLVANIA · PI IOZZO, RENATO V. · 1985 to 2020
$7.1M
The Biology of Perlecan in Cancer and AngiogenesisR01CA047282 · NCI · THOMAS JEFFERSON UNIVERSITY · PI IOZZO, RENATO V. · 1990 to 2019
$5.7M
Natural EGFR Antagonists and CancerR01CA120975 · NCI · THOMAS JEFFERSON UNIVERSITY · PI IOZZO, RENATO V. · 2007 to 2010
$942k
NCI NIH HHS CA39481NCI NIH HHS R01 CA039481NCI NIH HHS R01 CA047282NCI NIH HHS R01 CA120975NCI NIH HHS R01 CA47282NIAAA NIH HHS T32 AA07463.
6 · The paper itself

Abstract

Endorepellin, the C-terminal module of perlecan, negatively regulates angiogenesis counter to its proangiogenic parental molecule. Endorepellin (the C-terminal domain V of perlecan) binds the α2β1 integrin on endothelial cells and triggers a signaling cascade that leads to disruption of the actin cytoskeleton. Here, we show that both perlecan and endorepellin bind directly and with high affinity to both VEGF receptors 1 and 2, in a region that differs from VEGFA-binding site. In both human and porcine endothelial cells, this interaction evokes a physical down-regulation of both the α2β1 integrin and VEGFR2, with concurrent activation of the tyrosine phosphatase SHP-1 and downstream attenuation of VEGFA transcription. We demonstrate that endorepellin requires both the α2β1 integrin and VEGFR2 for its angiostatic activity. Endothelial cells that express α2β1 integrin but lack VEGFR2, do not respond to endorepellin treatment. Thus, we provide a new paradigm for the activity of an antiangiogenic protein and mechanistically explain the specificity of endorepellin for endothelial cells, the only cells that simultaneously express both receptors. We hypothesize that a mechanism such as dual receptor antagonism could operate for other angiostatic fragments.

Indexed as

Angiostatic ProteinsAnimalsCell LineDown-RegulationEndothelial CellsHeparan Sulfate ProteoglycansHumansIntegrin alpha2beta1Peptide FragmentsProtein BindingProtein Structure, TertiaryProtein TransportProtein Tyrosine Phosphatase, Non-Receptor Type 6RatsTranscription, GeneticVascular Endothelial Growth Factor AAngiostatic ProteinsHeparan Sulfate ProteoglycansIntegrin alpha2beta1Peptide FragmentsperlecanProtein Tyrosine Phosphatase, Non-Receptor Type 6Vascular Endothelial Growth Factor AVascular Endothelial Growth Factor Receptor-1Vascular Endothelial Growth Factor Receptor-2VEGFA protein, human

Identifiers

PMID21596751
PMCPMC3138248
OpenAlexW2041650871

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.