title: HLA-C, DRB1 and DQB1 alleles involved in genetic predisposition to psoriasis vulgaris in the Slovak population.
abstract: Psoriasis vulgaris is a complex chronic skin disease with immunological and genetic background. The most important predisposing genetic factors in psoriasis are genes of the human leukocyte antigen (HLA) region. Accumulative evidence has shown that several HLA alleles are closely associated with psoriasis; however, they tend to vary in different racial and ethnic backgrounds. One hundred forty-seven unrelated Slovak patients with psoriasis vulgaris (average age at onset 28 ± 14 years) were genotyped for the HLA-C, DQB1 and DRB1 alleles by the polymerase chain reaction using sequence-specific primers. Allele frequencies observed in the group of psoriatic patients were compared to those obtained in the ethnically matched control group comprising 194 subjects with no history of psoriasis. Susceptibility to psoriasis vulgaris in our study group is significantly associated with HLA-C*06 (odds ratio (OR) = 3.85), DRB1*07 (OR = 2.56) and DQB1*02 (OR = 1.09), respectively, whereas DRB*01 (OR = 0.05) is associated negatively. Hereby, we provide the first report on the association of HLA-C, DRB1 and DQB1 alleles with psoriasis in the Slovak population. Our findings confirm HLA-C*06 and DRB1*07 as the most important genetic risk factors for psoriasis. However, the role of HLA genes as causative in the pathogenesis of the disease remains unclear. Identification of genetic factors that increase the risk of psoriasis is a precondition that helps to elucidate the pathogenesis of this troubling disease and identify targets for a more specific and effective therapy.
authors.affiliation: Department of Immunology, Comenius University School of Medicine, Nám. odborárov 14, Bratislava, Slovakia. ivana.shawkatova@fmed.uniba.sk
authors.forename: Ivana
authors.initials: I
authors.lastname: Shawkatová
authors.forename: Juraj
authors.initials: J
authors.lastname: Javor
authors.forename: Zuzana
authors.initials: Z
authors.lastname: Párnická
authors.forename: Peter
authors.initials: P
authors.lastname: Kozub
authors.forename: Mária
authors.initials: M
authors.lastname: Zilínková
authors.forename: Peter
authors.initials: P
authors.lastname: Frey
authors.forename: Stanislav
authors.initials: S
authors.lastname: Ferenčík
authors.forename: Milan
authors.initials: M
authors.lastname: Buc
mesh_terms: D005787:Gene Frequency; D020022:Genetic Predisposition to Disease; D005838:Genotype; D015236:HLA-C Antigens / Q000235:genetics*; D059866:HLA-DQ beta-Chains / Q000235:genetics*; D059811:HLA-DRB1 Chains / Q000235:genetics*; D006801:Humans; D016133:Polymerase Chain Reaction; D011565:Psoriasis / Q000235:genetics*; D018154:Slovakia
chemical_list: D015236:HLA-C Antigens; D059866:HLA-DQ beta-Chains; C069051:HLA-DQB1 antigen; D059811:HLA-DRB1 Chains