Evidence map›Paper›PMID 19136576›Full record

ArticleAmerican journal of physiology. Lung cellular and molecular physiology2009

Neutrophil elastase cleaves VEGF to generate a VEGF fragment with altered activity.

Elma Kurtagic, Mark P Jedrychowski, Matthew A Nugent

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Lung cellular and molecular physiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
1.5field-weighted citation impact, top 16% 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

26 citing papers in PubMed, 38 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. The Prominin-1-Derived Peptide Improves Cardiac Function Following Ischemia.International journal of molecular sciences · 2021
    Article
  7. Review
  8. Article
  9. Article
  10. PR1P Stabilizes VEGF and Upregulates Its Signaling to Reduce Elastase-induced Murine Emphysema.American journal of respiratory cell and molecular biology · 2020
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Granzyme B releases vascular endothelial growth factor from extracellular matrix and induces vascular permeability.Laboratory investigation; a journal of technical methods and pathology · 2014
    Article
  18. Review
  19. Article
  20. Expanding the clinical indications for α(1)-antitrypsin therapy.Molecular medicine (Cambridge, Mass.) · 2012
    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

3 authors at 1 institution in 1 country.

Elma KurtagicDepartments of Biochemistry, Boston University School of Medicine, Boston University, Boston, Massachusetts 02118, USA.
Mark P Jedrychowski
Matthew A Nugent
Boston University · US

Funding

Growth Factors in Vascular BiologyR01HL056200 · NHLBI · BOSTON UNIVERSITY MEDICAL CAMPUS · PI NUGENT, MATTHEW A · 1997 to 2008
$2.7M
Elastase Injury of Pulmonary Extracellular MatrixR01HL088572 · NHLBI · BOSTON UNIVERSITY MEDICAL CAMPUS · PI NUGENT, MATTHEW A · 2008 to 2012
$2.0M
NHLBI NIH HHS HL-088572NHLBI NIH HHS HL-56200
6 · The paper itself

Abstract

Excessive neutrophil elastase (NE) activity and altered vascular endothelial growth factor (VEGF) signaling have independently been implicated in the development and progression of pulmonary emphysema. In the present study, we investigated the potential link between NE and VEGF. We noted that VEGF(165) is a substrate for NE. Digestion of purified VEGF(165) with NE generated a partially degraded disulfide-linked fragment of VEGF. Mass spectrometric analysis revealed that NE likely cleaves VEGF(165) at both the NH(2) and COOH termini to produce VEGF fragment chains approximately 5 kDa reduced in size. NE treatment of VEGF-laden endothelial cell cultures and smooth muscle cells endogenously expressing VEGF generated VEGF fragments similar to those observed with purified VEGF(165). NE-generated VEGF fragment showed significantly reduced binding to VEGF receptor 2 and heparin yet retained the ability to bind to VEGF receptor 1. Interestingly, VEGF fragment showed altered signaling in pulmonary artery endothelial cells compared with intact VEGF(165). Specifically, treatment with VEGF fragment did not activate extracellular-regulated kinases 1 and 2 (ERK1/2), yet resulted in enhanced activation of protein kinase B (Akt). Treatment of monocyte/macrophage RAW 264.7 cells with VEGF fragment, on the other hand, led to both Akt and ERK1/2 activation, increased VEGFR1 expression, and stimulated chemotaxis. These findings suggest that the tissue response to NE-mediated injury might involve the generation of diffusible VEGF fragments that stimulate inflammatory cell recruitment and activation via VEGF receptor 1.

Indexed as

Amino Acid SequenceAnimalsCattleEndothelial CellsExtracellular Signal-Regulated MAP KinasesHeparinHumansLeukocyte ElastaseLung InjuryModels, BiologicalMolecular Sequence DataPeptide FragmentsProto-Oncogene Proteins c-aktRecombinant ProteinsSignal TransductionSubstrate SpecificityExtracellular Signal-Regulated MAP KinasesHeparinLeukocyte ElastasePeptide FragmentsProto-Oncogene Proteins c-aktRecombinant ProteinsVascular Endothelial Growth Factor AVascular Endothelial Growth Factor Receptor-1Vascular Endothelial Growth Factor Receptor-2VEGFA protein, human

Identifiers

PMID19136576
PMCPMC2660218
OpenAlexW2151442820

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.