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Novel gene variants associated with cardiovascular disease in systemic lupus erythematosus and rheumatoid arthritis
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Rheumatology. Uppsala University, Science for Life Laboratory, SciLifeLab.
Karolinska Inst, Dept Med, Rheumatol Unit, Stockholm, Sweden.
Uppsala University, Science for Life Laboratory, SciLifeLab. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Rheumatology. Uppsala University, Science for Life Laboratory, SciLifeLab.
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2018 (English)In: Annals of the Rheumatic Diseases, ISSN 0003-4967, E-ISSN 1468-2060, Vol. 77, p. 1063-1069Article in journal (Refereed) Published
Abstract [en]

Objectives Patients with systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA) have increased risk of cardiovascular disease (CVD). We investigated whether single nucleotide polymorphisms (SNPs) at autoimmunity risk loci were associated with CVD in SLE and RA. Methods Patients with SLE (n=1045) were genotyped using the 200K Immunochip SNP array (Illumina). The allele frequency was compared between patients with and without different manifestations of CVD. Results were replicated in a second SLE cohort (n=1043) and in an RA cohort (n=824). We analysed publicly available genetic data from general population, performed electrophoretic mobility shift assays and measured cytokine levels and occurrence of antiphospholipid antibodies (aPLs). Results We identified two new putative risk loci associated with increased risk for CVD in two SLE populations, which remained after adjustment for traditional CVD risk factors. An IL19 risk allele, rs17581834(T) was associated with stroke/myocardial infarction (MI) in SLE (OR 2.3 (1.5 to 3.4), P=8.5×10−5) and RA (OR 2.8 (1.4 to 5.6), P=3.8×10−3), meta-analysis (OR 2.5 (2.0 to 2.9), P=3.5×10−7), but not in population controls. The IL19 risk allele affected protein binding, and SLE patients with the risk allele had increased levels of plasma-IL10 (P=0.004) and aPL (P=0.01). An SRP54-AS1 risk allele, rs799454(G) was associated with stroke/transient ischaemic attack in SLE (OR 1.7 (1.3 to 2.2), P=2.5×10−5) but not in RA. The SRP54-AS1 risk allele is an expression quantitative trait locus for four genes. Conclusions The IL19 risk allele was associated with stroke/MI in SLE and RA, but not in the general population, indicating that shared immune pathways may be involved in the CVD pathogenesis in inflammatory rheumatic diseases.

Place, publisher, year, edition, pages
BMJ Publishing Group Ltd, 2018. Vol. 77, p. 1063-1069
National Category
Rheumatology and Autoimmunity
Identifiers
URN: urn:nbn:se:uu:diva-368663DOI: 10.1136/annrheumdis-2017-212614ISI: 000444351000526OAI: oai:DiVA.org:uu-368663DiVA, id: diva2:1269511
Conference
Congress of the European-League-Against-Rheumatism (EULAR), JUN 13-16, 2018, Amsterdam, NETHERLANDS
Funder
Swedish Research Council, D0283001, A0258801, E0226301, E0395401Knut and Alice Wallenberg Foundation, 2011.0073AstraZenecaSwedish Society of MedicineSwedish Rheumatism AssociationKing Gustaf V Jubilee FundTorsten Söderbergs stiftelseStockholm County CouncilSwedish Heart Lung FoundationErik, Karin och Gösta Selanders FoundationNIH (National Institute of Health), UL1-TR-00004, P60-AR-053308, R01-AR-44804Available from: 2018-12-10 Created: 2018-12-10 Last updated: 2019-12-10Bibliographically approved

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Leonard, DagDahlqvist, JohannaAlexsson, AndreiSandling, Johanna K.Eloranta, Maija-LeenaSyvänen, Ann-ChristineRönnblom, Lars

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