title: HLA-DQA1, -DQB1 and -DRB1 genotyping in Japanese pemphigus vulgaris patients by the PCR-RFLP method.
abstract: We performed HLA-DQA1, -DQB1 and -DRB1 genotyping using the PCR-RFLP (polymerase chain reaction-restriction fragment length polymorphism) method for 32 Japanese pemphigus vulgaris (PV) patients. There was a significant association of either DQB1*0503 or DRB1*1405 with PV, and a negative association of either DQA1*0103 or DQB1*0601 with PV was found. Since the DQB1*0503+ patients had various DR14-related alleles, we concluded that the association with DQB1 is primary and that the association with DRB1 is simply due to linkage disequilibrium between the DQ and DR genes. These results may indicate that specific HLA class II antigens confer the susceptibility to PV among Japanese.
authors.affiliation: Section of Dermatology, Kitasato Institute Hospital, Tokyo, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Niizeki
authors.forename: H
authors.initials: H
authors.lastname: Inoko
authors.forename: N
authors.initials: N
authors.lastname: Mizuki
authors.forename: N
authors.initials: N
authors.lastname: Inamoto
authors.forename: K
authors.initials: K
authors.lastname: Watababe
authors.forename: T
authors.initials: T
authors.lastname: Hashimoto
authors.forename: T
authors.initials: T
authors.lastname: Nishikawa
mesh_terms: D000483:Alleles; D004198:Disease Susceptibility / Q000276:immunology; D005787:Gene Frequency; D005802:Genes, MHC Class II; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006683:HLA-DQ Antigens / Q000235:genetics*; D059848:HLA-DQ alpha-Chains; D059866:HLA-DQ beta-Chains; D006684:HLA-DR Antigens / Q000235:genetics*; D059811:HLA-DRB1 Chains; D006801:Humans; D007564:Japan; D010392:Pemphigus / Q000208:ethnology / Q000235:genetics*; D016133:Polymerase Chain Reaction; D012150:Polymorphism, Restriction Fragment Length
chemical_list: D006683:HLA-DQ Antigens; D059848:HLA-DQ alpha-Chains; D059866:HLA-DQ beta-Chains; C069050:HLA-DQA1 antigen; C069051:HLA-DQB1 antigen; D006684:HLA-DR Antigens; D059811:HLA-DRB1 Chains