Evidence map›Paper›PMID 20145415›Full record

ArticleJournal of vascular research2010

Enhanced matrix metalloproteinase activity in the spontaneously hypertensive rat: VEGFR-2 cleavage, endothelial apoptosis, and capillary rarefaction.

Edward D Tran, Frank A DeLano, Geert W Schmid-Schönbein

Open access · bronzeAbstract read
In one paragraph

Article in Journal of vascular research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 1 pooled it
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

40 citing papers in PubMed, 1 synthesis or guideline pooled it, 64 citations in OpenAlex.

  1. Pooled it
  2. Review
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  7. Article
  8. IGF-1 receptor cleavage in hypertension.Hypertension research : official journal of the Japanese Society of Hypertension · 2018
    Article
  9. Article
  10. Mechanisms of I/R-Induced Endothelium-Dependent Vasodilator Dysfunction.Advances in pharmacology (San Diego, Calif.) · 2018
    Review
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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

3 authors at 2 institutions in 1 country.

Edward D TranDepartment of Bioengineering, Whitaker Institute for Biomedical Engineering, University of California San Diego, La Jolla, Calif. 92093-0412, USA. etran@ucsd.edu
Frank A DeLano
Geert W Schmid-Schönbein
La Jolla Bioengineering Institute · USUniversity of California, San Diego · US

Funding

STRUCTURE/FUNCTION OF THE MICROCIRCULATIOMR01HL010881 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI SCHMID-SCHOENBEIN, GEERT W. · 1985 to 2011
$3.1M
NHLBI NIH HHS R01 HL010881
6 · The paper itself

Abstract

Besides an elevated blood pressure, the spontaneously hypertensive rat (SHR) has multiple microvascular complications including endothelial apoptosis with capillary rarefaction. The SHR also has elevated levels of proteolytic (e.g. matrix metalloproteinase, MMP) activity and apoptosis in microvascular cells compared to its normotensive control, but the specific enzymes involved and the molecular mechanism for apoptosis are unknown. We hypothesize that selected MMPs cleave the extracellular domain of vascular endothelial growth factor receptor-2 (VEGFR-2), which in turn causes endothelial apoptosis and capillary rarefaction. Zymographic analysis shows that gelatinase (MMP-2 and MMP-9) and matrilysin (MMP-7) activities are significantly enhanced in SHR plasma. The SHR has lower levels of the extracellular domains of VEGFR-2 in cardiac microvessels. Furthermore, application of plasma from the SHR, or purified MMP-9 and MMP-7 to naïve cells causes cleavage of the extracellular domain of VEGFR-2. The receptor cleavage was blocked by broad-acting MMP inhibitors (GM6001 1 microM, EDTA 10 mM, or doxycycline 11.3 microM). Chronic MMP inhibition (doxycycline, 5.4 mg/kg/day, 24 weeks) attenuated VEGFR-2 cleavage, endothelial apoptosis, and capillary rarefaction in the SHR. These results suggest elevated plasma MMP activities may cleave VEGFR-2, resulting in endothelial apoptosis and capillary rarefaction in the SHR.

Indexed as

ApoptosisAnimalsCapillariesDipeptidesDoxycyclineEdetic AcidEndotheliumHypertensionMaleMatrix Metalloproteinase 2Matrix Metalloproteinase 7Matrix Metalloproteinase 9Matrix Metalloproteinase InhibitorsMatrix MetalloproteinasesRatsRats, Inbred SHRDipeptidesDoxycyclineEdetic AcidMatrix Metalloproteinase 2Matrix Metalloproteinase 7Matrix Metalloproteinase 9Matrix Metalloproteinase InhibitorsMatrix MetalloproteinasesN-(2(R)-2-(hydroxamidocarbonylmethyl)-4-methylpentanoyl)-L-tryptophan methylamideVascular Endothelial Growth Factor Receptor-2

Identifiers

PMID20145415
PMCPMC2968763
OpenAlexW2068869330

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.