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Native Polyacrylamide Gel Electrophoresis Immunoblot Analysis of Endogenous IRF5 Dimerization
Published on: October 6, 2019
Associations between interferon regulatory factor 5 polymorphisms and rheumatoid arthritis: a meta-analysis
Young Ho Lee1, Sang-Cheol Bae, Sung Jae Choi
1Division of Rheumatology, Department of Internal Medicine, Korea University Anam Hospital, Korea University College of Medicine, 126-1, Anam-dong 5-ga, Seongbuk-gu, Seoul, 136-705, South Korea. lyhcgh@korea.ac.kr
Molecular Biology Reports
|October 18, 2012
Summary
This study found that specific interferon regulatory factor 5 (IRF5) gene variations are linked to rheumatoid arthritis (RA) susceptibility, particularly in European and Asian populations. Further research is needed for other ethnic groups.
Area of Science:
- Genetics and Immunology
- Rheumatology
Background:
- Rheumatoid arthritis (RA) is a chronic autoimmune disease with complex genetic underpinnings.
- Interferon regulatory factor 5 (IRF5) is implicated in immune regulation and has been investigated for its role in autoimmune diseases.
- Understanding the genetic contribution of IRF5 polymorphisms to RA susceptibility across diverse ethnicities is crucial for personalized medicine.
Purpose of the Study:
- To investigate the association between four specific IRF5 polymorphisms (rs2004640, rs729302, rs752637, and rs2280714) and rheumatoid arthritis (RA) susceptibility.
- To analyze these associations across different ethnic populations through meta-analysis.
- To explore potential differences in association based on anti-citrullinated peptide antibody status.
Main Methods:
- A systematic literature search was conducted using PubMed and Embase databases.
- Meta-analyses were performed on data from 12 studies, including 7,916 RA patients and 6,452 controls from European, Asian, and Argentinean populations.
- Fixed and random effects models were employed to assess the association between IRF5 polymorphisms and RA risk.
Main Results:
- The minor allele of IRF5 rs2004640 was associated with RA susceptibility overall and significantly in Europeans, but not in Asians.
- IRF5 rs729302 minor allele showed association with RA in the overall population and significantly in Asians, but not in Europeans.
- IRF5 rs752637 minor allele was associated with RA in Europeans, but not in Asians. No association was found for rs2280714.
- No significant difference in rs2004640 minor allele frequency was observed between anti-citrullinated peptide antibody-positive and -negative RA patients.
Conclusions:
- Specific IRF5 polymorphisms (rs2004640, rs729302, and rs752637) are confirmed to be associated with rheumatoid arthritis susceptibility.
- These associations vary significantly across different ethnic groups, with notable findings in European and Asian populations.
- Further investigation into the role of IRF5 polymorphisms in RA susceptibility is warranted across a broader range of ethnic groups.
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