Eosinophil extracellular DNA traps: molecular mechanisms and potential roles in disease

Yousefi, Shida; Simon, Dagmar; Simon, Hans-Uwe (2012). Eosinophil extracellular DNA traps: molecular mechanisms and potential roles in disease. Current opinion in immunology, 24(6), pp. 736-9. Kidlington, UK: Elsevier 10.1016/j.coi.2012.08.010

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Eosinophil extracellular traps (EETs) are part of the innate immune response and are seen in multiple infectious, allergic, and autoimmune eosinophilic diseases. EETs are composed of a meshwork of DNA fibers and eosinophil granule proteins, such as major basic protein (MBP) and eosinophil cationic protein (ECP). Interestingly, the DNA within the EETs appears to have its origin in the mitochondria of eosinophils, which had released most their mitochondrial DNA, but were still viable, exhibiting no evidence of a reduced life span. Multiple eosinophil activation mechanisms are represented, whereby toll-like, cytokine, chemokine, and adhesion receptors can all initiate transmembrane signal transduction processes leading to the formation of EETs. One of the key signaling events required for DNA release is the activation of the NADPH oxidase. Here, we review recent progress made in the understanding the molecular mechanisms involved in DNA and granule protein release, discuss the presence of EETs in disease, speculate on their potential role(s) in pathogenesis, and compare available data on other DNA-releasing cells, particularly neutrophils.

Item Type:

Journal Article (Further Contribution)


04 Faculty of Medicine > Pre-clinic Human Medicine > Institute of Pharmacology
04 Faculty of Medicine > Department of Dermatology, Urology, Rheumatology, Nephrology, Osteoporosis (DURN) > Clinic of Dermatology

UniBE Contributor:

Yousefi, Shida, Simon, Dagmar, Simon, Hans-Uwe








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Date Deposited:

04 Oct 2013 14:35

Last Modified:

05 Dec 2022 14:11

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https://boris.unibe.ch/id/eprint/14102 (FactScience: 220911)

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