Cited by 218Neutrophil, Myeloperoxidase and Oxidative MechanismsCardiac Fibrosis and RemodelingInterstitial Lung Diseases and Idiopathic Pulmonary Fibrosis

Peptidylarginine deiminase 4 promotes age-related organ fibrosis

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Martinod, Kimberly, Witsch, Thilo, Erpenbeck, Luise, Savchenko, Alexander, Hayashi, Hideki, Cherpokova, Deya, Gallant, Maureen, Mauler, Maximilian +2 more·2017·Journal of Experimental Medicine

Abstract

Aging promotes inflammation, a process contributing to fibrosis and decline in organ function. The release of neutrophil extracellular traps (NETs [NETosis]), orchestrated by peptidylarginine deiminase 4 (PAD4), damages organs in acute inflammatory models. We determined that NETosis is more prevalent in aged mice and investigated the role of PAD4/NETs in age-related organ fibrosis. Reduction in fibrosis was seen in the hearts and lungs of aged PAD4−/− mice compared with wild-type (WT) mice. An increase in left ventricular interstitial collagen deposition and a decline in systolic and diastolic function were present only in WT mice, and not in PAD4−/− mice. In an experimental model of cardiac fibrosis, cardiac pressure overload induced NETosis and significant platelet recruitment in WT but not PAD4−/− myocardium. DNase 1 was given to assess the effects of extracellular chromatin. PAD4 deficiency or DNase 1 similarly protected hearts from fibrosis. We propose a role for NETs in cardiac fibrosis and conclude that PAD4 regulates age-related organ fibrosis and dysfunction.

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Crossref · 10.1084/jem.20160530

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  • A previous study found that aged mice exhibited an increased propensity for NETosis compared to younger mice.

    “A previous study found that aged mice exhibited an increased propensity for NETosis compared to younger mice.”
  • This heightened NETosis activity was associated with the activation of peptidylarginine deiminase 4 (PAD4), an enzyme involved in the formation of NETs.

    “This heightened NETosis activity was associated with the activation of peptidylarginine deiminase 4 (PAD4), an enzyme involved in the formation of NETs.”
  • The excessive formation of NETs was implicated in the development of age-related organ fibrosis.

    “The excessive formation of NETs, in turn, was implicated in the development of age-related organ fibrosis.270”

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Authors
Martinod, K., Witsch, T., Erpenbeck, L., Savchenko, A., Hayashi, H., Cherpokova, D., Gallant, M., Mauler, M., Cifuni, S. M., & Wagner, D. D.
Affiliations
  • Boston Children's Hospital (US)
  • University of Freiburg (DE)
Corresponding author
Wagner, Denisa D.
Venue
Journal of Experimental Medicine
Published
2016-12-28
Volume
214
Issue
2
Pages
439-458
ISSN
  • 0022-1007 (ISSN-L)
  • 1540-9538
OpenAlex
W2562661149
Cited by
218
References
91
Citations by year
2026: 14 · 2025: 23 · 2024: 36 · 2023: 28 · 2022: 20 · 2021: 25 · 2020: 22 · 2019: 21 · 2018: 19 · 2017: 10
FWCI
10.11
Type
journal article
Language
en
Open access
Locations
  • The Journal of Experimental Medicine (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
  • Digital Access to Scholarship at Harvard (DASH) (Harvard University) (submittedVersion, cc-by)
  • GRO (submittedVersion)
Funders
  • National Heart, Lung, and Blood Institute (R01HL102101, R01HL125501, 5T32HL066987-13)
  • Boston Children’s Hospital
  • Deutsche Forschungsgemeinschaft (CH 1734/1-1)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Neutrophil, Myeloperoxidase and Oxidative Mechanisms
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac Fibrosis and Remodeling
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
Keywords
PAD4, neutrophil extracellular traps, NETosis, myocardial fibrosis, pulmonary fibrosis, aging, inflammation, DNase1, platelet recruitment, pressure overload, collagen deposition, cardiac function
MeSH terms
Protein-Arginine Deiminase Type 4, Age Factors, Animals, Collagen, Fibrosis, Hydrolases, Mice, Inbred C57BL, Myocardium, Pulmonary Fibrosis, Ventricular Function, Left, Reactive Oxygen Species, Mice, Extracellular Traps

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