Non-major histocompatibility complex rheumatoid arthritis susceptibility genes

9 Citations (Scopus)

Abstract

Recent results from genetic and treatment studies have shed new light on chronic infammatory and autoimmune diseases such as rheumatoid arthritis (RA). In particular, genome-wide association studies (GWAS) have provided supportive evidence that RA is a disease with a strong genetic background. Interestingly, a series of candidate genes have been identifed outside of the classical major histocompatibility (MHC) locus, which had long been regarded as the major contributor to the pathogenesis of this disease. Among these genes, PTPN22 plays an outstanding role. CD40, STAT4, PRM1, and TNFAIP3 also seem to be of relevance. Interestingly, there is a signifcant overlap between RA susceptibility genes and those of other autoimmune diseases such as systemic lupus erythematosus (SLE) and type 1 diabetes, which suggests common pathogenic mechanisms. Genetic analyses may not only provide new insights into the pathogenesis of RA, but may also open new avenues for therapeutic approaches, because overactive immune-signaling pathways might specifcally be addressed by biologic therapies. However, the predictive value of many of the recent fndings of large-scale genetic analyses in identifying new genetic polymorphisms remains low. We describe the current knowledge about the role of non-MHC genes in the pathogenesis of rheumatoid arthritis.

Original languageEnglish
JournalCritical Reviews in Immunology
Volume31
Issue number2
Pages (from-to)99-114
Number of pages16
ISSN1040-8401
Publication statusPublished - 10.05.2011

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