ArticleRheumatology (Oxford, England)2025
A high polygenic risk score is associated with SSA/SSB antibody positivity and early onset in primary Sjögren's disease.
Article in Rheumatology (Oxford, England), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Elevated levels of nitrotyrosine-modified protein adducts and their association with the severity of primary sjogren's syndrome and secondary sjogren's syndrome with rheumatoid arthritis in Taiwanese Patients.Clinical rheumatology · 2026Article
- Understanding Sex Differences in Autoimmune Diseases: Immunologic Mechanisms.International journal of molecular sciences · 2025Review
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25 authors.
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Abstract
objectivesTo calculate a polygenic risk score (PRS) based on single nucleotide variants (SNVs) previously associated with primary Sjögren's disease (SjD) with genome-wide significance and determine the genetic risk for SjD stratified by antibodies, sex and age at diagnosis.
methodsPatients with SjD (n = 1065) were genotyped using Illumina OmniExpressExome chip. Control genotype data were available (n = 7742). Two PRSs were constructed, one including HLA gene variants (n = 21 SNVs), and one without HLA (n = 18 SNVs). High PRS quartile (Q4) individuals were compared with low PRS (Q1-3).
resultsA high PRS was associated with SSA antibody-positive SjD (OR 9.16, 95% CI 7.75-10.85, P = 3.7 × 10-146), and strengthened in SjD positive for both SSA/SSB antibodies (OR 13.67, 95% CI 10.88-17.32, P = 4.6 × 10-108). High PRS classified SSA/SSB antibody-positive SjD with very good accuracy (AUC 0.86). PRS without HLA showed a weaker association with SSA/SSB positive SjD (OR 2.09, 95% CI 1.71-2.55, P = 6.4 × 10-13). Antibody negative SjD displayed a PRS similar to controls. Patients in the high PRS quartile were significantly younger at diagnosis, 48.9 ± 14.9 vs 53.4 ± 13.4 years in the low PRS quartiles (Q1-3), P = 2.2 × 10-6, and presented higher frequencies of ANA, SSA and SSA/SSB antibodies, P < 1 × 10-5.
conclusionA high PRS is associated with SSA/SSB antibody positivity and early disease onset, both largely attributed to the weight of the HLA alleles. Integration of PRS with other biomarkers applied to clinical phenotypes could be a useful tool for disease risk stratification and treatment decisions.
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