Document Detail


Superantigens and their association with dermatological inflammatory diseases: facts and hypotheses.
MedLine Citation:
PMID:  11200827     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Superantigens have been suggested to play an important role in the pathogenesis of several inflammatory skin diseases as well as systemic diseases such as atopic dermatitis, psoriasis, vasculitis, T-cell lymphoma and autoimmune diseases. Infections often precede the onset and relapse of these diseases, and antibiotic treatment with or without additional glucocorticosteroids and immunoglobulins is occasionally successful. Superantigens are microbial proteins that are able to stimulate up to 20% of the naive T-cell population in a non-specific way. They are produced by gram-positive and -negative bacteria as well as by viruses, parasites and yeasts. The importance of the pathogenic role of superantigens is determined by the potency to induce inflammation by extensive cytokine release after T-cell stimulation and/or T-cell-mediated cytotoxicity and, thereby, tissue damage. Furthermore, superantigens may be able to induce autoimmune processes by stimulation of autoreactive T-cells as well as autoantibody production by stimulation of B-cells. Among the diseases associated with superantigens, atopic dermatitis, guttate and chronic plaque psoriasis, as well as Kawasaki disease, are by far the best-characterized. Nevertheless, conflicting results have been obtained and formal proof of a pathogenic role of superantigens in these diseases is still lacking. The aim of this review is to summarize the data on superantigens in terms of their distribution in microorganisms, their interactions with the adaptive immune system and their contribution to skin pathology.
Authors:
U Jappe
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Review    
Journal Detail:
Title:  Acta dermato-venereologica     Volume:  80     ISSN:  0001-5555     ISO Abbreviation:  Acta Derm. Venereol.     Publication Date:    2000 Sep-Oct
Date Detail:
Created Date:  2001-01-25     Completed Date:  2001-05-10     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0370310     Medline TA:  Acta Derm Venereol     Country:  Norway    
Other Details:
Languages:  eng     Pagination:  321-8     Citation Subset:  IM    
Affiliation:
Department of Microbiology, Skin Research Center, University of Leeds, UK. Uta_Jappe@med.uni-heidelberg.de
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MeSH Terms
Descriptor/Qualifier:
Autoimmune Diseases / immunology
B-Lymphocytes / immunology
Humans
Lymphocyte Activation / immunology
Skin / immunology
Skin Diseases / immunology*
Skin Diseases, Infectious / immunology
Superantigens / immunology*
T-Lymphocytes / immunology
Chemical
Reg. No./Substance:
0/Superantigens

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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