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Neutrophil extracellular traps information


A scanning electron microscope image of NETs engulfing fungal cells (Candida albicans) in an infected mouse lung. (Click on image for more details.)[1]
Fluorescent image of cultivated neutrophils isolated from venous blood of human with Alzheimer Disease. Sample was treated with Hoechst 33342 dye that is used to stain DNA. The picture shows the release of DNA by a neutrophil as foggy area in the center of the view field indicating the spontaneous activation of neutrophil extracellular traps (NETs) formation in AD patients that is not usually observed in healthy mates. Magnification x40.

Neutrophil extracellular traps (NETs) are networks of extracellular fibers, primarily composed of DNA from neutrophils, which bind pathogens.[2] Neutrophils are the immune system's first line of defense against infection and have conventionally been thought to kill invading pathogens through two strategies: engulfment of microbes and secretion of anti-microbials. In 2004, a novel third function was identified: formation of NETs. NETs allow neutrophils to kill extracellular pathogens while minimizing damage to the host cells.[3] Upon in vitro activation with the pharmacological agent phorbol myristate acetate (PMA), Interleukin 8 (IL-8) or lipopolysaccharide (LPS), neutrophils release granule proteins and chromatin to form an extracellular fibril matrix known as NET through an active process.[2]

  1. ^ Urban, Constantin F.; Ermert, David; Schmid, Monika; Abu-Abed, Ulrike; Goosmann, Christian; Nacken, Wolfgang; Brinkmann, Volker; Jungblut, Peter R.; Zychlinsky, Arturo; Levitz, Stuart M. (30 October 2009). "Neutrophil Extracellular Traps Contain Calprotectin, a Cytosolic Protein Complex Involved in Host Defense against Candida albicans". PLOS Pathogens. 5 (10): e1000639. doi:10.1371/journal.ppat.1000639. PMC 2763347. PMID 19876394.
  2. ^ a b Brinkmann, Volker; Ulrike Reichard; Christian Goosmann; Beatrix Fauler; Yvonne Uhlemann; David S. Weiss; Yvette Weinrauch; Arturo Zychlinsky (2004-03-05). "Neutrophil Extracellular Traps Kill Bacteria". Science. 303 (5663): 1532–1535. Bibcode:2004Sci...303.1532B. doi:10.1126/science.1092385. PMID 15001782. S2CID 21628300.
  3. ^ Nirmala GJ and Lopus M (2020) Cell death mechanisms in eukaryotes. Cell Biol Toxicol, 36, 145–164. doi: /10.1007/s10565-019-09496-2. PMID 31820165

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Neutrophil extracellular traps

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Neutrophil extracellular traps (NETs) are networks of extracellular fibers, primarily composed of DNA from neutrophils, which bind pathogens. Neutrophils...

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Neutrophil

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These neutrophil extracellular traps (NETs) comprise a web of fibers composed of chromatin and serine proteases that trap and kill extracellular microbes...

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destroys bacteria and host tissue. It also localizes to neutrophil extracellular traps (NETs), via its high affinity for DNA, an unusual property for serine...

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Granulocyte

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Neutrophil extracellular traps (NETs) comprise a web of fibers composed of chromatin and serine proteases that trap and kill microbes extracellularly...

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DNA

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biodiversity. Neutrophil extracellular traps (NETs) are networks of extracellular fibers, primarily composed of DNA, which allow neutrophils, a type of white...

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Myeloperoxidase deficiency

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efficient production and release of neutrophil extracellular traps (NETs) from the neutrophils to trap and kill extracellular pathogens. Despite these characteristics...

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Deoxyribonuclease

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cells includes breaking down extracellular DNA (ecDNA) excreted by apoptosis, necrosis, and neutrophil extracellular traps (NET) of cells to help reduce...

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Nonspecific immune cell

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them. This process characterizes neutrophils as a type of phagocyte. Neutrophils contain neutrophil extracellular traps (NETs), composed of granule and...

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Streptococcus pyogenes

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allows the pathogen group A Streptococcus to escape killing in neutrophil extracellular traps". Current Biology. 16 (4): 396–400. Bibcode:2006CBio...16..396B...

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NETS

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Theological Seminary (NETS), an evangelical seminary in Israel Neutrophil extracellular traps Singh Program in Networked & Social Systems Engineering (NETS)...

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Staphylococcus aureus

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expression by Staphylococcus aureus facilitates escape from neutrophil extracellular traps". Journal of Innate Immunity. 2 (6): 576–586. doi:10.1159/000319909...

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Arturo Zychlinsky

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Planck Institute for Infection Biology. His research focuses on Neutrophil Extracellular Traps (NETs) which he discovered together with Volker Brinkmann, and...

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Neutrophils are recruited early in the process of venous thrombi formation. They release pro-coagulant granules and neutrophil extracellular traps (NETs)...

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Hypochlorous acid

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processes such as platelet aggregation and the formation of neutrophil extracellular traps. E. coli exposed to hypochlorous acid lose viability in less...

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Complement component 5a

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(C5L2) mediates the formation of neutrophil extracellular traps and release of cytotoxic histones to the extracellular space, which is believed to act...

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Macrophage

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before they or their neutrophil extracellular traps are phagocytized by the macrophages. When at the site, the first wave of neutrophils, after the process...

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Phagocyte

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as neutrophil extracellular traps (NETs). Composed mainly of DNA, NETs cause death by a process called netosis – after the pathogens are trapped in NETs...

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Ulcerative colitis

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as effectively as sulfasalazine. Neutrophil extracellular traps and the resulting degradation of the extracellular matrix have been reported in the colon...

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Lupus

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those with lupus nephritis) and an impairment in degrading neutrophil extracellular traps (NETs). These were due to DNAse1 inhibiting factors, or NET...

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Lysosome

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erythematosus preventing macrophages and monocytes from degrading neutrophil extracellular traps and immune complexes. The failure to degrade internalized immune...

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NET

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interface between the endocrine and nervous systems Neutrophil extracellular traps, networks of extracellular fibers that bind pathogens Norepinephrine transporter...

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Asthma trigger

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environmental factors lead to the accumulation of neutrophil extracellular traps (NET) releasing neutrophils in the lungs. This increased release of NETs have...

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Multiple organ dysfunction syndrome

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invaders, then hit them with a deadly oxidative blast, forming neutrophil extracellular traps (NETs).[citation needed] This results in catastrophic immune...

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S100A9

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Miller JM, Maxwell CN, Chazin WJ, Skaar EP (September 2021). "Neutrophil extracellular traps enhance macrophage killing of bacterial pathogens". Science...

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process to be combatted. It includes the creation of NETs or neutrophil extracellular traps that are composed of DNA wrapped around histones and proteins...

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Bronchiectasis

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neutrophil function is believed to play a role in the pathogenesis of bronchiectasis. Neutrophil extracellular traps (NETs), which are extracellular fibers...

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Hoechst stain

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of DNA by a neutrophil as foggy area in the center of the view field indicating the spontaneous activation of neutrophil extracellular traps formation in...

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Denisa Wagner

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respond to vascular injury. Also her lab has been studying NETs (Neutrophil Extracellular Traps) for more than a decade. In 2015, research from the lab shed...

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