Therapeutic Down-Modulators of Staphylococcal Superantigen-Induced Inflammation and Toxic Shock

Staphylococcal enterotoxin B (SEB) and related superantigenic toxins are potent stimulators of the immune system and cause a variety of diseases in humans, ranging from food poisoning to toxic shock. These toxins bind directly to major histocompatibility complex (MHC) class II molecules on antigen-p...

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Main Author: Teresa Krakauer
Format: Article
Language:English
Published: MDPI AG 2010-07-01
Series:Toxins
Subjects:
Online Access:http://www.mdpi.com/2072-6651/2/8/1963/
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author Teresa Krakauer
author_facet Teresa Krakauer
author_sort Teresa Krakauer
collection DOAJ
description Staphylococcal enterotoxin B (SEB) and related superantigenic toxins are potent stimulators of the immune system and cause a variety of diseases in humans, ranging from food poisoning to toxic shock. These toxins bind directly to major histocompatibility complex (MHC) class II molecules on antigen-presenting cells and specific Vb regions of T-cell receptors (TCR), resulting in hyperactivation of both monocytes/macrophages and T lymphocytes. Activated host cells produce massive amounts of proinflammatory cytokines and chemokines, activating inflammation and coagulation, causing clinical symptoms that include fever, hypotension, and shock. This review summarizes the in vitro and in vivo effects of staphylococcal superantigens, the role of pivotal mediators induced by these toxins in the pathogenic mechanisms of tissue injury, and the therapeutic agents to mitigate the toxic effects of superantigens.
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spelling doaj.art-007f4920481e4063a4c060fda6c8cf1d2022-12-22T02:57:10ZengMDPI AGToxins2072-66512010-07-01281963198310.3390/toxins2081963Therapeutic Down-Modulators of Staphylococcal Superantigen-Induced Inflammation and Toxic ShockTeresa KrakauerStaphylococcal enterotoxin B (SEB) and related superantigenic toxins are potent stimulators of the immune system and cause a variety of diseases in humans, ranging from food poisoning to toxic shock. These toxins bind directly to major histocompatibility complex (MHC) class II molecules on antigen-presenting cells and specific Vb regions of T-cell receptors (TCR), resulting in hyperactivation of both monocytes/macrophages and T lymphocytes. Activated host cells produce massive amounts of proinflammatory cytokines and chemokines, activating inflammation and coagulation, causing clinical symptoms that include fever, hypotension, and shock. This review summarizes the in vitro and in vivo effects of staphylococcal superantigens, the role of pivotal mediators induced by these toxins in the pathogenic mechanisms of tissue injury, and the therapeutic agents to mitigate the toxic effects of superantigens.http://www.mdpi.com/2072-6651/2/8/1963/staphylococcal superantigenstherapeuticsinflammatory mediatorstoxic shockmurine models
spellingShingle Teresa Krakauer
Therapeutic Down-Modulators of Staphylococcal Superantigen-Induced Inflammation and Toxic Shock
Toxins
staphylococcal superantigens
therapeutics
inflammatory mediators
toxic shock
murine models
title Therapeutic Down-Modulators of Staphylococcal Superantigen-Induced Inflammation and Toxic Shock
title_full Therapeutic Down-Modulators of Staphylococcal Superantigen-Induced Inflammation and Toxic Shock
title_fullStr Therapeutic Down-Modulators of Staphylococcal Superantigen-Induced Inflammation and Toxic Shock
title_full_unstemmed Therapeutic Down-Modulators of Staphylococcal Superantigen-Induced Inflammation and Toxic Shock
title_short Therapeutic Down-Modulators of Staphylococcal Superantigen-Induced Inflammation and Toxic Shock
title_sort therapeutic down modulators of staphylococcal superantigen induced inflammation and toxic shock
topic staphylococcal superantigens
therapeutics
inflammatory mediators
toxic shock
murine models
url http://www.mdpi.com/2072-6651/2/8/1963/
work_keys_str_mv AT teresakrakauer therapeuticdownmodulatorsofstaphylococcalsuperantigeninducedinflammationandtoxicshock