title: Association of HLA-A*02:06 and HLA-DRB1*04:05 with clinical subtypes of juvenile idiopathic arthritis.
abstract: Juvenile idiopathic arthritis (JIA) is one of the most common forms of pediatric chronic arthritis. JIA is a clinically heterogeneous disease. Therefore, the genetic background of JIA may also be heterogeneous. The aim of this study was to investigate associations between human leukocyte antigen (HLA) and susceptibility to JIA and/or uveitis, which is one of the most devastating complications of JIA. A total of 106 Japanese articular JIA patients (67 with polyarthritis and 39 with oligoarthritis) and 678 healthy controls were genotyped for HLA-A, -B and -DRB1 by PCR-sequence-specific oligonucleotide probe methodology. HLA-A(*)02:06 was the risk factor for JIA accompanied by uveitis after adjustment for clinical factors (corrected P-value < 0.001, odds ratio (OR) 11.7, 95% confidence interval (CI) 3.2-43.0). On the other hand, HLA-DRB1(*)04:05 was associated with polyarticular JIA (corrected P-value < 0.001, OR 2.9, 95% CI 1.7-4.8). We found an association of HLA-A(*)02:06 with susceptibility to JIA accompanied by uveitis, which might be considered a separate clinical JIA entity. We also found an association between HLA-DRB1(*)04:05 and polyarticular JIA. Thus, clinical subtypes of JIA can be classified by the presence of the specific HLA alleles, HLA-A(*)02:06 and DRB1(*)04:05.
authors.affiliation: Department of Pediatrics, Yokohama City University Graduate School of Medicine, Yokohama, Japan.
authors.forename: Masakatsu
authors.initials: M
authors.lastname: Yanagimachi
authors.forename: Takako
authors.initials: T
authors.lastname: Miyamae
authors.forename: Takuya
authors.initials: T
authors.lastname: Naruto
authors.forename: Takuma
authors.initials: T
authors.lastname: Hara
authors.forename: Masako
authors.initials: M
authors.lastname: Kikuchi
authors.forename: Ryoki
authors.initials: R
authors.lastname: Hara
authors.forename: Tomoyuki
authors.initials: T
authors.lastname: Imagawa
authors.forename: Masaaki
authors.initials: M
authors.lastname: Mori
authors.forename: Tetsuji
authors.initials: T
authors.lastname: Kaneko
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Goto
authors.forename: Satoshi
authors.initials: S
authors.lastname: Morita
authors.forename: Nobuhisa
authors.initials: N
authors.lastname: Mizuki
authors.forename: Akinori
authors.initials: A
authors.lastname: Kimura
authors.forename: Shumpei
authors.initials: S
authors.lastname: Yokota
mesh_terms: D000293:Adolescent; D001171:Arthritis, Juvenile / Q000150:complications / Q000235:genetics*; D002648:Child; D002675:Child, Preschool; D005260:Female; D020022:Genetic Predisposition to Disease; D015234:HLA-A Antigens / Q000235:genetics*; D006684:HLA-DR Antigens / Q000235:genetics*; D059811:HLA-DRB1 Chains; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D014605:Uveitis / Q000150:complications / Q000235:genetics
chemical_list: D015234:HLA-A Antigens; D006684:HLA-DR Antigens; D059811:HLA-DRB1 Chains