The A-G polymorphism in exon 1 of the CTLA-4 gene is not associated with systemic lupus erythematosus.

Abstract:

OBJECTIVES:Factors contributing to the development of systemic lupus erythematosus (SLE) remain largely unknown although are likely to include both environmental and genetic components. Studies on murine lupus have indicated a role for an antibody that blocks binding of cytotoxic T lymphocyte associated-4 (CTLA-4) to B7 on antigen presenting cells in the treatment of disease, suggesting that CTLA-4 may play an important part in the disease process. This study, therefore, investigated the frequency of a previously described A-G polymorphism in exon 1 of the CTLA-4 gene, the G allele of which has shown to be associated with both Graves' disease and type I diabetes, to determine whether this polymorphism was playing a part in the development of SLE. METHODS:One hundred and twenty six SLE patients and 363 control subjects were genotyped for the A-G polymorphism in exon 1 of the CTLA-4 gene. Target DNA was amplified using the polymerase chain reaction and the resulting product was digested using the BbvI restriction enzyme. RESULTS:No differences in allele or genotype frequencies were observed between patients with SLE and control subjects. CONCLUSION:These data suggest that the A-G polymorphism in exon 1 of the CTLA-4 gene does not play a part in the genetic susceptibility to the development of SLE.

journal_name

Ann Rheum Dis

authors

Heward J,Gordon C,Allahabadia A,Barnett AH,Franklyn JA,Gough SC

doi

10.1136/ard.58.3.193

subject

Has Abstract

pub_date

1999-03-01 00:00:00

pages

193-5

issue

3

eissn

0003-4967

issn

1468-2060

journal_volume

58

pub_type

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