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Association between inflammasome-related polymorphisms and psoriatic arthritis
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Rheumatology.
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Rheumatology.
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Rheumatology.ORCID iD: 0000-0001-8259-3863
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2021 (English)In: Scandinavian Journal of Rheumatology, ISSN 0300-9742, E-ISSN 1502-7732, Vol. 50, no 3, p. 206-212Article in journal (Refereed) Published
Abstract [en]

Objective: Psoriatic arthritis (PsA) is a heterogeneous inflammatory disease associated with psoriasis. Underlying genetic factors are considered important for disease expression and prognosis of PsA. Interleukin-1 beta-regulating protein complexes called inflammasomes are associated with several inflammatory diseases, e.g. rheumatoid arthritis and psoriasis. The aim was to determine whether inflammasome-related genetic variation is associated with PsA susceptibility or different disease phenotypes.

Method: DNA from 724 patients with PsA and 587 population-based controls from northern Sweden was analysed for single-nucleotide polymorphisms in NLRP3-Q750K (rs35829419), NLRP3 (rs10733113), CARD8-C10X (rs2043211), NLRP1 (rs8079034), and NLRP1 (rs878329).

Results: Significant associations were found with the genotype AA (vs AT+TT) of rs2043211 for PsA patients compared with controls [odds ratio (OR), 95% confidence interval (CI) 1.32 (1.05-1.65), p = 0.016]; and between the C-allele of rs878329 and axial involvement of PsA [OR (95% CI) 1.37 (1.02-1.84), p = 0.035], the T-allele of rs8079034 with prescription of conventional synthetic disease-modifying anti-rheumatic drugs [OR (95% CI) 1.76 (1.23-2.53), p = 0.0020], the G-allele of rs10733113 and patients with a skin disease with early onset [OR (95% CI) 1.58 (1.13-2.21), p = 0.007], and the C-allele of rs35829419 and a destructive/deforming disease [OR (95% CI) 1.63 (1.04-2.55), p = 0.030].

Conclusions: This study is the first to show an association with a genetic polymorphism in an inflammasome-related gene, CARD8-C10X (rs2043211), in patients with PsA. Associations between different phenotypes of PsA and different polymorphisms of the inflammasome genes were also found. Our results indicate the involvement of inflammasome genes in the pathogenesis and disease expression of PsA.

Place, publisher, year, edition, pages
Taylor & Francis, 2021. Vol. 50, no 3, p. 206-212
National Category
Rheumatology and Autoimmunity
Identifiers
URN: urn:nbn:se:umu:diva-178339DOI: 10.1080/03009742.2020.1834611ISI: 000597863100001PubMedID: 33300400Scopus ID: 2-s2.0-85105904969OAI: oai:DiVA.org:umu-178339DiVA, id: diva2:1516226
Funder
Västerbotten County CouncilAvailable from: 2021-01-11 Created: 2021-01-11 Last updated: 2023-03-23Bibliographically approved

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Juneblad, KristinaJohansson, LindaRantapää-Dahlqvist, SolbrittAlenius, Gerd-Marie

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