Document Detail


Autoantigen-specific memory CD4(+) T cells are prevalent early in progression to Type 1 diabetes.
MedLine Citation:
PMID:  22270037     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Autoreactive CD4(+) T cells contribute to the destruction of insulin producing beta cells in Type 1 diabetes (T1D). Using MHC class II tetramers, we have analyzed the frequency of GAD65- (274-286; 555-567) and insulin- (A1-15; A6-21) specific CD4(+) T cells in 31 children with T1D, 65 multiple autoantibody-positive children and 93 HLA- and age-matched controls. In a smaller group of children T-cell responses of memory origin to the same autoantigens were investigated. We observed a higher response to GAD65 555-567 in the autoantibody-positive children than in the controls (P=0.017). Memory T-cell responses to GAD65 555-567 were more frequent among T1D patients (P=0.025) and autoantibody-positive (P=0.054), while all controls were negative (n=28). In summary, the presence of antigen experienced GAD65-specific T cells in the subjects with diabetes-associated autoimmunity is encouraging for further directions in the prediction of T1D.
Authors:
Viveka Oling; Helena Reijonen; Olli Simell; Mikael Knip; Jorma Ilonen
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-1-2
Journal Detail:
Title:  Cellular immunology     Volume:  -     ISSN:  1090-2163     ISO Abbreviation:  -     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-1-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  1246405     Medline TA:  Cell Immunol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Inc. All rights reserved.
Affiliation:
Immunogenetics Laboratory, University of Turku, Medicity, Biocity 4th Floor, Tykistökatu 6A, FI-20520 Turku, Finland.
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