Human SNP links differential outcomes in inflammatory and infectious disease to a FOXO3-regulated pathway

James C. Lee, Marion Espéli, Carl A. Anderson, Michelle A. Linterman, Joanna M. Pocock, Naomi J. Williams, Rebecca Roberts, Sebastien Viatte, Bo Fu, Norbert Peshu, Tran Tinh Hien, Nguyen Hoan Phu, Emma Wesley, Cathryn Edwards, Tariq Ahmad, John C. Mansfield, Richard Gearry, Sarah Dunstan, Thomas N. Williams, Anne BartonCarola G. Vinuesa, Miles Parkes, Paul A. Lyons, Kenneth G.C. Smith*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

185 Citations (Scopus)

Abstract

Summary The clinical course and eventual outcome, or prognosis, of complex diseases varies enormously between affected individuals. This variability critically determines the impact a disease has on a patient's life but is very poorly understood. Here, we exploit existing genome-wide association study data to gain insight into the role of genetics in prognosis. We identify a noncoding polymorphism in FOXO3A (rs12212067: T > G) at which the minor (G) allele, despite not being associated with disease susceptibility, is associated with a milder course of Crohn's disease and rheumatoid arthritis and with increased risk of severe malaria. Minor allele carriage is shown to limit inflammatory responses in monocytes via a FOXO3-driven pathway, which through TGFβ1 reduces production of proinflammatory cytokines, including TNFα, and increases production of anti-inflammatory cytokines, including IL-10. Thus, we uncover a shared genetic contribution to prognosis in distinct diseases that operates via a FOXO3-driven pathway modulating inflammatory responses. PaperClip

Original languageEnglish
Pages (from-to)57-69
Number of pages13
JournalCell
Volume155
Issue number1
DOIs
Publication statusPublished - 26 Sept 2013
Externally publishedYes

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