title: HLA class II genotyping by polymerase chain reaction-restriction fragment length polymorphism method (PCR-RFLP) in systemic lupus erythematosus patients.
abstract: Recently, genotyping of HLA class II alleles by digestion of polymerase chain reaction (PCR) amplified polymorphic DNA region with restriction endonucleases (PCR-RFLP) has been reported and claimed to be a simple and reliable technique. We tested the use of PCR-RFLP for genotyping of DQA 1, DQB 1, DPB 1 and DRB 1 alleles of 40 normal individuals and 19 patients with systemic lupus erythematosus (SLE). In agreement with previous reports, we observed an association of SLE with the DRB 1*1501-DQA 1*0102-DQB 1*0602 haplotype and noted an unreported association with DPB 1*0501. Although these observations must be confirmed with larger sample sizes, we believe that the PCR-RFLP is simpler and more practical than the sequence-specific oligonucleotides (PCR-SSO) for genotyping and can be invaluable to the more widespread molecular determination of HLA-class II specificities, including in non-specialized laboratories.
authors.affiliation: Third Division of Internal Medicine, Shimane Medical University.
authors.forename: R M
authors.initials: RM
authors.lastname: Xavier
authors.forename: H
authors.initials: H
authors.lastname: Ishikura
authors.forename: Y
authors.initials: Y
authors.lastname: Iwata
authors.forename: H
authors.initials: H
authors.lastname: Tsumura
authors.forename: S
authors.initials: S
authors.lastname: Kobayashi
authors.forename: J
authors.initials: J
authors.lastname: Endo
mesh_terms: D005838:Genotype; D000949:Histocompatibility Antigens Class II / Q000235:genetics*; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000235:genetics / Q000276:immunology*; D016133:Polymerase Chain Reaction; D012150:Polymorphism, Restriction Fragment Length
chemical_list: D000949:Histocompatibility Antigens Class II