Document Detail

Serum concentration of immunoglobulin G-type antibodies against the whole Epstein-Barr nuclear antigen 1 and its aa35-58 or aa398-404 fragments in the sera of patients with systemic lupus erythematosus and multiple sclerosis.
MedLine Citation:
PMID:  23379431     Owner:  NLM     Status:  MEDLINE    
Several studies suggest that infection by Epstein-Barr virus (EBV) might be one of the environmental factors which facilitates the development of autoimmune disorders in genetically susceptible individuals. Recent data indicate that high anti-Epstein-Barr nuclear antigen 1 (EBNA)-1 immunoglobulin (Ig)G titre is a strong risk factor for multiple sclerosis (MS) in patients both with and without the main genetic predisposing trait, human leucocyte antigen (HLA)-DRB1*15:01. Because no similar studies have been published in systemic lupus erythematosus (SLE) patients, we determined the HLA-DRB1*15:01 carrier state and the serum titres against the whole EBNA-1 and its small fragments aa35-58 and aa398-404 in 301 SLE patients, 135 MS patients and in 345 healthy controls. The carrier state of the HLA-DRB1*15:01 allele was deduced from genotyping of a tagSNP (rs3135388) by applying a Taqman-based assay. The serum concentrations of antibodies to EBNA-1 and its aa35-58 or aa398-404 fragments were determined using a commercial assay (ETI-EBNA-G) and home-made enzyme-linked immunosorbent assays, respectively. The serum concentration of anti-EBNA-1 antibodies was significantly (P < 0·001) higher both in MS and SLE patients than in controls. Similar significant differences were found both in HLA-DRB1*15:01 carriers and non-carriers. Furthermore, titres of antibodies against the aa35-58 EBNA-1 fragment were elevated both in MS and SLE patients. By contrast, the levels of aa398-404 EBNA-1 antibodies were elevated significantly only in the SLE patients. These findings indicate that high anti-EBNA-1 IgG titres are HLA-DRB1*15:01-independent risk factors not only for MS, but also for SLE, while high antibody titres against the aa398-404 fragment are characteristic for SLE.
D Csuka; D Simon; R Hóbor; K Uray; Z Prohászka; Z Bánlaki; P K Jani; Á Szilágyi; F Hudecz; K Rajczy; G Beke; A Boros Major; A Tordai; Z Illés; T Berki; L Czirják; G Füst
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Clinical and experimental immunology     Volume:  171     ISSN:  1365-2249     ISO Abbreviation:  Clin. Exp. Immunol.     Publication Date:  2013 Mar 
Date Detail:
Created Date:  2013-02-05     Completed Date:  2013-04-02     Revised Date:  2014-03-06    
Medline Journal Info:
Nlm Unique ID:  0057202     Medline TA:  Clin Exp Immunol     Country:  England    
Other Details:
Languages:  eng     Pagination:  255-62     Citation Subset:  IM    
Copyright Information:
© 2012 British Society for Immunology.
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MeSH Terms
Amino Acid Sequence
Case-Control Studies
Epstein-Barr Virus Nuclear Antigens / immunology*
HLA-DRB1 Chains / genetics
Immunoglobulin G / blood*,  immunology*
Lupus Erythematosus, Systemic / blood,  immunology*
Middle Aged
Molecular Sequence Data
Multiple Sclerosis / blood,  immunology*
Peptide Fragments / blood*,  immunology*
Reg. No./Substance:
0/EBV-encoded nuclear antigen 1; 0/Epstein-Barr Virus Nuclear Antigens; 0/HLA-DRB1 Chains; 0/Immunoglobulin G; 0/Peptide Fragments

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