An additional susceptibility gene for juvenile idiopathic arthritis in the HLA class I region on several DR-DQ haplotypes

Tissue Antigens. 2003 Jan;61(1):80-4. doi: 10.1034/j.1399-0039.2003.610107.x.


Juvenile idiopathic arthritis (JIA) is an HLA-associated rheumatic disease with onset in childhood. We recently reported that allele 5 at microsatellite D6S265 in the HLA class I region is associated with JIA, independent of linkage disequilibrium with the high risk DR8-DQ4 haplotype. In the present study, we investigated whether alleles at D6S265, or other markers in this region, also modify the risk for JIA on other haplotypes, i.e., DRB1*1301-DQB1*0603 or DRB1*1101/4-DQB1*0301. We observed a significant association with allele 6 at D6S265 on the DRB1*1301-DQB1*0603 haplotype. We also noted an association with allele 3 at D6S265, when carried on the DRB1*1101/4-DQB1*0301 haplotype. Our results further support an additional JIA susceptibility gene in the HLA class I region in linkage disequilibrium with alleles at D6S265.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alleles
  • Arthritis, Juvenile / genetics*
  • Arthritis, Juvenile / immunology
  • Genes, MHC Class I*
  • Genetic Predisposition to Disease / genetics*
  • HLA-DQ Antigens / genetics*
  • HLA-DR Antigens / genetics*
  • Haplotypes
  • Humans
  • Linkage Disequilibrium
  • Models, Genetic


  • HLA-DQ Antigens
  • HLA-DR Antigens