Association of HLA class II genes with systemic sclerosis in Spanish patients

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Abstract

Objective. To examine the role of HLA-DRB1 and HLA-DQB1 alleles in the susceptibility to systemic sclerosis (SSc) and its clinical expression in a Spanish population. Methods. One hundred Spanish Caucasian patients with SSc and 130 controls were studied. Molecular HLA-DRB1 and HLA-DQB1 typing was performed by polymerase chain reaction (PCR) sequence-based typing and PCR sequence-specific oligonucleotide. Results. HLA-DRB1*11 was associated with genetic susceptibility to SSc, whereas HLA-DRB1*07 (HLA-DRB1*0701) showed a protective effect. A significant increase in the frequency of the DRB1*1104 allele was observed in patients with anti-topoisomerase I autoantibodies (anti-Topo I) while HLA-DRB1*01 and HLA-DQB1*05 alleles were significantly increased in patients with anticentromere antibodies (ACA). The HLA-DRB1*11 allele was more frequent in patients with pulmonary fibrosis; however, no significant association with any HLA-DRB1 or DQB1 alleles was identified in patients with pulmonary arterial hypertension. Conclusion. HLA alleles play a role in genetic susceptibility to SSc in Spanish patients. Some alleles are more prevalent in patients with pulmonary fibrosis and in patients with certain SSc-specific autoantibodies (anti-Topo I and ACA). The Journal of Rheumatology Copyright © 2009. All rights reserved.

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CITATION STYLE

APA

Simeón, C. P., Fonollosa, V., Tolosa, C., Palou, E., Selva, A., Solans, R., … Vilardell, M. (2009). Association of HLA class II genes with systemic sclerosis in Spanish patients. Journal of Rheumatology, 36(12), 2733–2736. https://doi.org/10.3899/jrheum.090377

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