Cited by 173Neutrophil, Myeloperoxidase and Oxidative MechanismsCell death mechanisms and regulationAntimicrobial Peptides and Activities

ETosis: A Novel Cell Death Pathway

Wartha, Florian, Henriques-Normark, Birgitta·2008·Science Signaling

Abstract

The formation of extracellular traps (ETs) by neutrophils and mast cells is an important mechanism in the innate immune response. These structures consist of a chromatin-DNA backbone with attached antimicrobial peptides and enzymes that trap and kill microbes. After stimulation of neutrophils and mast cells with phorbol esters, chemoattractant peptides, or chemokines, the generation of reactive oxygen species (ROS), such as hydrogen peroxide, by NAPDH [nicotinamide adenine dinucleotide phosphate (reduced form)] oxidase initiates a signaling cascade that leads to the disintegration of the nuclear and cellular membranes and the formation of ETs. This form of cell death is neither apoptotic nor necrotic, but whether it occurs because of the oxidation of phosphatases and kinases, as in other ROS-mediated signaling cascades, remains to be elucidated. These findings implicate "ETosis" as a novel cell death pathway in leukocytes.

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Crossref · 10.1126/stke.121pe25

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35 of 35 references verified0 citation errors · 0 not checkable

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Authors
Wartha, F., & Henriques-Normark, B.
Affiliations
  • Karolinska Institutet (SE)
  • Department of Bacteriology, Swedish Institute for Infectious Disease Control, 17182 Solna, Sweden, and the Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, 17177 Stockholm, Sweden.
Venue
Science Signaling
Published
2008-05-27
Volume
1
Issue
21
Pages
pe25-pe25
ISSN
  • 1937-9145 (ISSN-L)
  • 1945-0877
OpenAlex
W2076770085
Cited by
173
References
37
Citations by year
2026: 8 · 2025: 4 · 2024: 7 · 2023: 12 · 2022: 14 · 2021: 19 · 2020: 10 · 2019: 7 · 2018: 7 · 2017: 7 · 2016: 12 · 2015: 12 · 2014: 7 · 2013: 7 · 2012: 10
FWCI
0.71
Type
journal article
Language
en
Open access
closed
Locations
  • Science Signaling (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Neutrophil, Myeloperoxidase and Oxidative Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Life Sciences › Immunology and Microbiology › Microbiology › Antimicrobial Peptides and Activities
Keywords
extracellular traps, ETosis, neutrophils, mast cells, cell death pathways, reactive oxygen species, NADPH oxidase, hydrogen peroxide, innate immunity, antimicrobial peptides, leukocytes
MeSH terms
Bacteria, Bacterial Adhesion, Immunity, Mast Cells, Neutrophils, Signal Transduction, Reactive Oxygen Species

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