Document Detail


Molecular mimicry, microbial infection, and autoimmune disease: evolution of the concept.
MedLine Citation:
PMID:  16329189     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Molecular mimicry is defined as similar structures shared by molecules from dissimilar genes or by their protein products. Either several linear amino acids or their conformational fit may be shared, even though their origins are separate. Hence, during a viral or microbe infection, if that organism shares cross-reactive epitopes for B or T cells with the host, then the response to the infecting agent will also attack the host, causing autoimmune disease. A variation on this theme is when a second, third, or repeated infection(s) shares cross-reactive B or T cell epitopes with the first (initiating) virus but not necessarily the host. In this instance, the secondary infectious agents increase the number of antiviral/antihost effector antibodies or T cells that potentiate or precipitate the autoimmune assault. The formation of this concept initially via study of monoclonal antibody or clone T cell cross-recognition in vitro through its evolution to in vivo animal models and to selected human diseases is explored in this mini-review.
Authors:
M B A Oldstone
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Review    
Journal Detail:
Title:  Current topics in microbiology and immunology     Volume:  296     ISSN:  0070-217X     ISO Abbreviation:  Curr. Top. Microbiol. Immunol.     Publication Date:  2005  
Date Detail:
Created Date:  2005-12-05     Completed Date:  2006-01-04     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0110513     Medline TA:  Curr Top Microbiol Immunol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  1-17     Citation Subset:  IM    
Affiliation:
Division of Virology, Department of Neuropharmacology, The Scripps Research Institute, La Jolla, CA 92037, USA. mbaobo@scripps.edu
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MeSH Terms
Descriptor/Qualifier:
Amino Acid Sequence
Animals
Autoantibodies / biosynthesis
Autoantigens / genetics
Autoimmune Diseases / etiology*,  immunology,  microbiology
Disease Models, Animal
Epitopes / genetics
Humans
Infection / immunology*
Models, Immunological
Molecular Mimicry / immunology*
Molecular Sequence Data
T-Lymphocytes / immunology
Grant Support
ID/Acronym/Agency:
AI-009484/AI/NIAID NIH HHS; AI-036222/AI/NIAID NIH HHS; AI-045927/AI/NIAID NIH HHS; DK-058541/DK/NIDDK NIH HHS
Chemical
Reg. No./Substance:
0/Autoantibodies; 0/Autoantigens; 0/Epitopes

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


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