Secretion of S100A8, S100A9, and S100A12 by Neutrophils Involves Reactive Oxygen Species and Potassium Efflux
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چکیده
منابع مشابه
Secretion of S100A8, S100A9, and S100A12 by Neutrophils Involves Reactive Oxygen Species and Potassium Efflux
S100A8/A9 (calprotectin) and S100A12 proinflammatory mediators are found at inflammatory sites and in the serum of patients with inflammatory or autoimmune diseases. These cytoplasmic proteins are secreted by neutrophils at sites of inflammation via alternative secretion pathways of which little is known. This study examined the nature of the stimuli leading to S100A8/A9 and S100A12 secretion a...
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INFLAMMATORY MEDIATORS TRIGGER POLYMORPHONUCLEAR NEUTROPHILS (PMN) TO PRODUCE REACTIVE OXYGEN SPECIES (ROS: O(2) (-), H(2)O(2), ∙OH). Mediated by myeloperoxidase in PMN, HOCl is formed, detectable in a chemiluminescence (CL) assay. We have shown that the abundant cytosolic PMN protein calprotectin (S100A8/A9) similarly elicits CL in response to H(2)O(2) in a cell-free system. Myeloperoxidase an...
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S100A8, S100A9 and S100A12 are considered proinflammatory mediators of atherosclerosis. Known as calgranulins, they are major components of neutrophils and are upregulated in macrophages and foam cells. They influence leukocyte recruitment, and may propagate inflammation by binding TLR4 and/or receptor for advanced glycation endproducts (RAGE). However, the receptors for calgranulins remain an ...
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ژورنال
عنوان ژورنال: Journal of Immunology Research
سال: 2015
ISSN: 2314-8861,2314-7156
DOI: 10.1155/2015/296149