期刊
RHEUMATOLOGY
卷 60, 期 5, 页码 2085-2098出版社
OXFORD UNIV PRESS
DOI: 10.1093/rheumatology/key330
关键词
primary Sjogren's syndrome; genetics; GWAS; HLA; IRF5; STAT4; epigenetics; DNA methylation; histone modification; non-coding RNA
类别
资金
- Swedish Research Council for Medicine and Health [2016-01982]
- National Institutes of Health [5R01 AR50782, P50 AR0608040, 5U19 AI 082714, 5U01DE017593, 5R01 DE018209]
- Phileona Foundation
- Oklahoma Medical Research Foundation
- AstraZeneca-Science for Life Laboratory research collaboration grant
- Swedish Research Council [2016-01982] Funding Source: Swedish Research Council
Primary Sjogren's syndrome (pSS) is a multifactorial disease with underlying genetic predisposition, epigenetic mechanisms and environmental factors playing roles in disease development. The strongest association signal lies within the HLA genes, with most genetic risk variants found at intergenic regions whose functional impact remains unclear. Epigenetic mechanisms like DNA methylation and histone modifications modulate gene expression, forming a dynamic link between the genome and phenotypic manifestations in pSS.
Primary Sjogren's syndrome (pSS) is considered to be a multifactorial disease, where underlying genetic predisposition, epigenetic mechanisms and environmental factors contribute to disease development. In the last 5 years, the first genome-wide association studies in pSS have been completed. The strongest signal of association lies within the HLA genes, whereas the non-HLA genes IRF5 and STAT4 show consistent associations in multiple ethnicities but with a smaller effect size. The majority of the genetic risk variants are found at intergenic regions and their functional impact has in most cases not been elucidated. Epigenetic mechanisms such as DNA methylation, histone modifications and non-coding RNAs play a role in the pathogenesis of pSS by their modulating effects on gene expression and may constitute a dynamic link between the genome and phenotypic manifestations. This article reviews the hitherto published genetic studies and our current understanding of epigenetic mechanisms in pSS.
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