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Genome-Wide Assessment of Shared Genetic Architecture Between Rheumatoid Arthritis and Cardiovascular Diseases
Yanjun Guo1,2,3,4, Wonil Chung2,5, Zhilei Shan6
1Department of Occupational and Environmental Health, School of Public Health Tongji Medical College, Huazhong University of Science and Technology Wuhan China.
Journal of the American Heart Association
|November 10, 2023
Summary
Rheumatoid arthritis (RA) and cardiovascular disease (CVD) share genetic links, not direct causality. Understanding these shared genetic factors may reveal new therapeutic targets for RA-CVD comorbidities.
Area of Science:
- Genetics
- Cardiology
- Rheumatology
Background:
- Rheumatoid arthritis (RA) patients face a significantly elevated risk of cardiovascular disease (CVD).
- The underlying biological mechanisms and causal links between RA and CVD require further investigation.
Purpose of the Study:
- To explore the genetic associations and shared mechanisms between RA and CVD.
- To leverage large-scale genomic data and advanced genetic analytic methods.
Main Methods:
- Utilized UK Biobank data for genetic correlation analysis, cross-trait meta-analysis, and Mendelian randomization.
- Examined genetic links between RA (Ncases=6754) and various cardiovascular diseases (Ncases=44,238).
Main Results:
- Significant genetic correlations were found between RA and myocardial infarction, angina, coronary heart diseases, and overall CVD.
- Nine independent shared genetic loci were identified, including PTPN22, BCL2L11, and CCR3, suggesting shared pathways like accelerated atherosclerosis.
- Genetic correlation varied with analgesic use, with higher correlations observed in non-aspirin users and paracetamol users.
Conclusions:
- The study supports shared genetic pathogenesis, rather than direct causality, in the association between RA and CVD.
- Identified shared genetic factors offer potential therapeutic targets for managing RA-CVD comorbidities.
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