Integration of metabolomics, genomics, and immune phenotypes reveals the causal roles of metabolites in disease

Xiaojing Chu, Martin Jaeger, Joep Beumer, Olivier B. Bakker, Raul Aguirre-Gamboa, Marije Oosting, Sanne P. Smeekens, Simone Moorlag, Vera P. Mourits, Valerie A.C.M. Koeken, Charlotte de Bree, Trees Jansen, Ian T. Mathews, Khoi Dao, Mahan Najhawan, Jeramie D. Watrous, Irma Joosten, Sonia Sharma, Hans J.P.M. Koenen, Sebo WithoffIris H. Jonkers, Romana T. Netea-Maier, Ramnik J. Xavier, Lude Franke, Cheng Jian Xu, Leo A.B. Joosten, Serena Sanna, Mohit Jain, Vinod Kumar, Hans Clevers, Cisca Wijmenga*, Mihai G. Netea, Yang Li

*Corresponding author for this work

    Research output: Contribution to journalArticleAcademicpeer-review

    2 Citations (Scopus)

    Abstract

    Background: Recent studies highlight the role of metabolites in immune diseases, but it remains unknown how much of this effect is driven by genetic and non-genetic host factors. Result: We systematically investigate circulating metabolites in a cohort of 500 healthy subjects (500FG) in whom immune function and activity are deeply measured and whose genetics are profiled. Our data reveal that several major metabolic pathways, including the alanine/glutamate pathway and the arachidonic acid pathway, have a strong impact on cytokine production in response to ex vivo stimulation. We also examine the genetic regulation of metabolites associated with immune phenotypes through genome-wide association analysis and identify 29 significant loci, including eight novel independent loci. Of these, one locus (rs174584-FADS2) associated with arachidonic acid metabolism is causally associated with Crohn’s disease, suggesting it is a potential therapeutic target. Conclusion: This study provides a comprehensive map of the integration between the blood metabolome and immune phenotypes, reveals novel genetic factors that regulate blood metabolite concentrations, and proposes an integrative approach for identifying new disease treatment targets.

    Original languageEnglish
    Article number198
    Pages (from-to)1-22
    JournalGenome Biology
    Volume22
    Issue number1
    DOIs
    Publication statusPublished - Dec 2021

    Keywords

    • Genomics
    • Immune phenotypes
    • Integrative analysis
    • Metabolomics

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