Evidence map›Paper›PMID 22879591›Full record

ArticleThe Journal of biological chemistry2012

Cathepsin G-regulated release of formyl peptide receptor agonists modulate neutrophil effector functions.

Josh C Woloszynek, Ying Hu, Christine T N Pham

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2012. 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
0.7field-weighted citation impact, top 32% 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, 27 citations in OpenAlex.

  1. Article
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  15. Article
  16. Mast cell proteases as pharmacological targets.European journal of pharmacology · 2016
    Review
  17. Article
  18. Article
  19. Article
  20. Polymorphonuclear neutrophils and instability of the atherosclerotic plaque: a causative role?Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2013
    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.

Josh C WoloszynekDepartment of Medicine, Division of Rheumatology, Washington University School of Medicine, St. Louis, Missouri 63110, USA.
Ying Hu
Christine T N Pham
Washington University in St. Louis · US

Funding

Washington University Center for Cellular ImagingP30CA091842 · NCI · WASHINGTON UNIVERSITY · PI TIMOTHY J. EBERLEIN · 2001 to 2026
$128.0M
Washington University Institute of Clinical and Translational Sciences (UL1)UL1RR024992 · NCRR · WASHINGTON UNIVERSITY · PI EVANOFF, BRADLEY A · 2007 to 2011
$45.4M
Washington University Institute of Clinical and Translational SciencesUL1TR000448 · NCATS · WASHINGTON UNIVERSITY · PI EVANOFF, BRADLEY A · 2012 to 2016
$41.4M
Viral Discovery in Rheumatoid ArthritisP30AR048335 · NIAMS · WASHINGTON UNIVERSITY · PI WEIHL, CONRAD C · 2001 to 2015
$8.9M
TRAINING IN THE IMMUNOLOGY OF RHEUMATIC DISEASEST32AR007279 · NIAMS · WASHINGTON UNIVERSITY · PI Megan Anne Cooper, Deborah J Lenschow · 1986 to 2026
$6.0M
ROLE OF DPPI & SERINE PROTEASES IN INFLAMMATORY DISEASESR01AI049261 · NIAID · WASHINGTON UNIVERSITY · PI PHAM, CHRISTINE T. · 2002 to 2012
$3.1M
Role of DPPI & Serine Proteases in Inflammatory DiseasesR56AI049261 · NIAID · WASHINGTON UNIVERSITY · PI PHAM, CHRISTINE T · 2007 to 2007
$342k
NCATS NIH HHS UL1 TR000448NCI NIH HHS P30 CA091842NCI NIH HHS P30 CA91842NCRR NIH HHS UL1 RR024992NIAID NIH HHS AI049261NIAID NIH HHS AI049261-08S2NIAID NIH HHS R01 AI049261NIAID NIH HHS R56 AI049261NIAMS NIH HHS AR007279NIAMS NIH HHS P30 AR048335NIAMS NIH HHS P30AR048335NIAMS NIH HHS T32 AR007279
6 · The paper itself

Abstract

Neutrophil serine proteases play an important role in inflammation by modulating neutrophil effector functions. We have previously shown that neutrophils deficient in the serine proteases cathepsin G and neutrophil elastase (CG/NE neutrophils) exhibit severe defects in chemokine CXCL2 release and reactive oxygen species (ROS) production when activated on immobilized immune complex. Exogenously added active CG rescues these defects, but the mechanism remains undefined. Using a protease-based proteomic approach, we found that, in vitro, the addition of exogenous CG to immune complex-stimulated CG/NE neutrophils led to a decrease in the level of cell-associated annexin A1 (AnxA1) and cathelin-related antimicrobial peptide (CRAMP), both known inflammatory mediators. We further confirmed that, in vivo, CG was required for the extracellular release of AnxA1 and CRAMP in a subcutaneous air pouch model. In vitro, CG efficiently cleaved AnxA1, releasing the active N-terminal peptide Ac2-26, and processed CRAMP in limited fashion. Ac2-26 and CRAMP peptides enhanced the release of CXCL2 by CG/NE neutrophils in a dose-dependent manner via formyl peptide receptor (FPR) stimulation. Blockade of FPRs by an antagonist, Boc2 (t-Boc-Phe-d-Leu-Phe-d-Leu-Phe), abrogates CXCL2 release, whereas addition of FPR agonists, fMLF and F2L, relieves Boc2 inhibition. Furthermore, the addition of active CG, but not inactive CG, also relieves Boc2 inhibition. These findings suggest that CG modulates neutrophil effector functions partly by controlling the release (and proteolysis) of FPR agonists. Unexpectedly, we found that mature CRAMP, but not Ac2-26, induced ROS production through an FPR-independent pathway.

Indexed as

ProteolysisAnimalsAnnexin A1Antimicrobial Cationic PeptidesCathelicidinsCathepsin GChemokine CXCL2Chemotactic FactorsMiceMice, Mutant StrainsNeutrophilsN-Formylmethionine Leucyl-PhenylalanineOligopeptidesReactive Oxygen SpeciesReceptors, Formyl PeptideAnnexin A1annexin A1, mouseAntimicrobial Cationic Peptidesbutyloxycarbonyl-phenylalanyl-leucyl-phenylalanyl-leucyl-phenylalanineCathelicidinsCathepsin GChemokine CXCL2Chemotactic FactorsCtsg protein, mouseCxcl2 protein, mouseF2L protein, mouseN-Formylmethionine Leucyl-PhenylalanineOligopeptidesReactive Oxygen SpeciesReceptors, Formyl Peptide

Identifiers

PMID22879591
PMCPMC3464519
OpenAlexW2029290740

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.