期刊
SEMINARS IN ARTHRITIS AND RHEUMATISM
卷 57, 期 -, 页码 -出版社
W B SAUNDERS CO-ELSEVIER INC
DOI: 10.1016/j.semarthrit.2022.152098
关键词
Rheumatoid arthritis; Interstitial lung disease; Single nucleotide polymorphism
类别
资金
- Rheumatology Research Foundation
- VA CSRD [IK2CX002351, IK2 CX002203]
- VA (BLRD Merit) [I01 BX004660]
- National Institutes of Health [2U54GM115458]
- U.S. Department of Defense [PR200793]
- VA CSRD Merit [CX0001703]
- RRD Merit [RX0003644]
- Department of Defense [PR200793]
- National Institute for Occupational Safety and Health [R01OH012045, U54OH010162]
- American Heart Association
- National Institute for Arthritis and Musculoskeletal and Skin Diseases [K23AR079588]
This study suggests that the mutation of MUC5B is associated with RA-ILD, especially in white patients. Non-smokers have a lower risk of developing ILD, while patients with both MUC5B mutation and a smoking history have a higher risk of ILD.
Objective: MUC5B and TOLLIP single nucleotide polymorphisms (SNPs) and cigarette smoking were associated with rheumatoid arthritis-interstitial lung disease (RA-ILD) in a predominantly Northern European population. We evaluated whether RA-ILD is associated with these genetic variants and HLA-DRB1 shared epitope (SE) alleles in a large RA cohort stratified by race and smoking history. Methods: HLA-DRB1 SE alleles and MUC5B rs35705950 and TOLLIP rs5743890 SNPs were genotyped in U.S. veterans with RA. ILD was validated through medical record review. Genetic associations with ILD were assessed in logistic regression models overall and in subgroups defined by race and smoking status, with additive interactions assessed by the relative excess risk of interaction (RERI). Results: Of 2,556 participants (88% male, 77% White), 238 (9.3%) had ILD. The MUC5B variant was associated with ILD (OR 2.25 [95% CI 1.69, 3.02]), whereas TOLLIP and HLA-DRB1 SE were not. The MUC5B variant was less frequent among Black/African American participants (5.8% vs. 22.6%), though its association with RA-ILD was numerically stronger (OR 4.23 [1.65, 10.86]) compared to all other participants (OR 2.32 [1.70, 3.16]). Those with the MUC5B variant and a smoking history had numerically higher odds of ILD (OR 4.18 [2.53, 6.93]) than non-smokers (OR 2.41 [1.16, 5.04]). Additive interactions between MUC5B-race and MUC5B-smoking were not statistically significant. Conclusion: In this large RA cohort, the MUC5B promoter variant was associated with >2-fold higher odds of RA-ILD. While this variant is less common among Black/African American patients, its presence in this population carried >4-fold higher odds of RA-ILD.
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