Polygenic risk scores of rheumatoid arthritis associated with seropositivity and bone erosions in a Taiwanese population

Abstract Polygenic risk scores (PRS) are widely used to estimate disease risks and predict clinical outcomes. However, ethnic differences exist worldwide. We aimed to use PRS for predicting the development of rheumatoid arthritis (RA) in a Taiwanese population and investigate whether PRS of RA may b...

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Main Authors: Ting-Shuan Wu, Yen-Ju Chen, Chia-Ni Hsiung, Chien-Lin Mao, Chia-Yi Wei, I-Chieh Chen, Chung-Mao Kao, Tzu-Hung Hsiao, Wen-Nan Huang, Yi-Hsing Chen, Yi-Ming Chen
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Language:English
Published: Nature Portfolio 2025-07-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-08254-1
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author Ting-Shuan Wu
Yen-Ju Chen
Chia-Ni Hsiung
Chien-Lin Mao
Chia-Yi Wei
I-Chieh Chen
Chung-Mao Kao
Tzu-Hung Hsiao
Wen-Nan Huang
Yi-Hsing Chen
Yi-Ming Chen
author_facet Ting-Shuan Wu
Yen-Ju Chen
Chia-Ni Hsiung
Chien-Lin Mao
Chia-Yi Wei
I-Chieh Chen
Chung-Mao Kao
Tzu-Hung Hsiao
Wen-Nan Huang
Yi-Hsing Chen
Yi-Ming Chen
author_sort Ting-Shuan Wu
collection DOAJ
description Abstract Polygenic risk scores (PRS) are widely used to estimate disease risks and predict clinical outcomes. However, ethnic differences exist worldwide. We aimed to use PRS for predicting the development of rheumatoid arthritis (RA) in a Taiwanese population and investigate whether PRS of RA may be associated with structural damage. PRS was calculated via GWAS data from 2,042 RA patients and 7,950 controls from the Taiwan Precision Medicine Initiative. LDpred2, PLINK, and PRSice-2 models were used to evaluate RA susceptibility via AUC. Clinical factors, including rheumatoid factor (RF), anti-citrullinated protein antibody (ACPA), medication, and bone erosion identified by X-ray or ultrasound, were compared across PRS quartiles. PRS derived from 97,396 SNPs via LDpred2 had the highest AUC. Participants in the highest quartile of RA-PRS had the highest proportions of rheumatoid factor (RF) and anti-citrullinated protein antibody (ACPA) positivity (74.8% and 65.0%, respectively), bone erosion (86.4%), and use of bDMARDs or tsDMARDs (42.3%) compared to the other quartiles. PRS remained a significant predictor of bone erosion, particularly in patients under 60 years of age, even after adjusting for RF, ACPA, and treatment. PRS is associated with seropositivity, erosive bone disease, and need for advanced therapy among Taiwanese patients with RA.
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spelling doaj-art-e56eb975dc3040399866f30dd60ceb112025-08-20T03:43:11ZengNature PortfolioScientific Reports2045-23222025-07-0115111110.1038/s41598-025-08254-1Polygenic risk scores of rheumatoid arthritis associated with seropositivity and bone erosions in a Taiwanese populationTing-Shuan Wu0Yen-Ju Chen1Chia-Ni Hsiung2Chien-Lin Mao3Chia-Yi Wei4I-Chieh Chen5Chung-Mao Kao6Tzu-Hung Hsiao7Wen-Nan Huang8Yi-Hsing Chen9Yi-Ming Chen10Department of Biomedical Sciences, Chung Shan Medical UniversityDepartment of Medical Research, Taichung Veterans General HospitalData Science Statistical Cooperation Center, Institute of Statistical Science, Academia SinicaDepartment of Medical Research, Taichung Veterans General HospitalDepartment of Medical Research, Taichung Veterans General HospitalDepartment of Medical Research, Taichung Veterans General HospitalDivision of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Taichung Veterans General HospitalDepartment of Medical Research, Taichung Veterans General HospitalDivision of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Taichung Veterans General HospitalDivision of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Taichung Veterans General HospitalDepartment of Medical Research, Taichung Veterans General HospitalAbstract Polygenic risk scores (PRS) are widely used to estimate disease risks and predict clinical outcomes. However, ethnic differences exist worldwide. We aimed to use PRS for predicting the development of rheumatoid arthritis (RA) in a Taiwanese population and investigate whether PRS of RA may be associated with structural damage. PRS was calculated via GWAS data from 2,042 RA patients and 7,950 controls from the Taiwan Precision Medicine Initiative. LDpred2, PLINK, and PRSice-2 models were used to evaluate RA susceptibility via AUC. Clinical factors, including rheumatoid factor (RF), anti-citrullinated protein antibody (ACPA), medication, and bone erosion identified by X-ray or ultrasound, were compared across PRS quartiles. PRS derived from 97,396 SNPs via LDpred2 had the highest AUC. Participants in the highest quartile of RA-PRS had the highest proportions of rheumatoid factor (RF) and anti-citrullinated protein antibody (ACPA) positivity (74.8% and 65.0%, respectively), bone erosion (86.4%), and use of bDMARDs or tsDMARDs (42.3%) compared to the other quartiles. PRS remained a significant predictor of bone erosion, particularly in patients under 60 years of age, even after adjusting for RF, ACPA, and treatment. PRS is associated with seropositivity, erosive bone disease, and need for advanced therapy among Taiwanese patients with RA.https://doi.org/10.1038/s41598-025-08254-1PRSRASeropositivityRheumatoid factorAnti-citrullinated protein antibodyBone erosion
spellingShingle Ting-Shuan Wu
Yen-Ju Chen
Chia-Ni Hsiung
Chien-Lin Mao
Chia-Yi Wei
I-Chieh Chen
Chung-Mao Kao
Tzu-Hung Hsiao
Wen-Nan Huang
Yi-Hsing Chen
Yi-Ming Chen
Polygenic risk scores of rheumatoid arthritis associated with seropositivity and bone erosions in a Taiwanese population
Scientific Reports
PRS
RA
Seropositivity
Rheumatoid factor
Anti-citrullinated protein antibody
Bone erosion
title Polygenic risk scores of rheumatoid arthritis associated with seropositivity and bone erosions in a Taiwanese population
title_full Polygenic risk scores of rheumatoid arthritis associated with seropositivity and bone erosions in a Taiwanese population
title_fullStr Polygenic risk scores of rheumatoid arthritis associated with seropositivity and bone erosions in a Taiwanese population
title_full_unstemmed Polygenic risk scores of rheumatoid arthritis associated with seropositivity and bone erosions in a Taiwanese population
title_short Polygenic risk scores of rheumatoid arthritis associated with seropositivity and bone erosions in a Taiwanese population
title_sort polygenic risk scores of rheumatoid arthritis associated with seropositivity and bone erosions in a taiwanese population
topic PRS
RA
Seropositivity
Rheumatoid factor
Anti-citrullinated protein antibody
Bone erosion
url https://doi.org/10.1038/s41598-025-08254-1
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