Genome-Wide Association Study of Circulating Interleukin 6 Levels Identifies Novel Loci

Tarunveer S Ahluwalia, Bram P Prins, Mohammadreza Abdollahi, Nicola J Armstrong, Stella Aslibekyan, Lisa Bain, Barbara Jefferis, Jens Baumert, Marian Beekman, Yoav Ben-Shlomo, Joshua C Bis, Braxton D Mitchell, Eco de Geus, Graciela E Delgado, Diana Marek, Joel Eriksson, Eero Kajantie, Stavroula Kanoni, John P Kemp, Chen LuRiccardo E Marioni, Stela McLachlan, Yuri Milaneschi, Ilja M Nolte, Alexandros M Petrelis, Eleonora Porcu, Maria Sabater-Lleal, Elnaz Naderi, Ilkka Seppälä, Tina Shah, Gaurav Singhal, Marie Standl, Alexander Teumer, Anbupalam Thalamuthu, Elisabeth Thiering, Stella Trompet, Christie M Ballantyne, Emelia J Benjamin, Juan P Casas, Catherine Toben, George Dedoussis, Joris Deelen, Peter Durda, Jorgen Engmann, Mary F Feitosa, Harald Grallert, Ann Hammarstedt, Tine Jess, Peter Rossing, Thorkild I A Sørensen, CHARGE Inflammation Working Group

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38 Citationer (Scopus)
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Abstract

Interleukin-6 (IL-6) is a multifunctional cytokine with both pro- and anti-inflammatory properties with a heritability estimate of up to 61%. The circulating levels of IL-6 in blood have been associated with an increased risk of complex disease pathogenesis. We conducted a two-staged, discovery, and replication meta genome-wide association study (GWAS) of circulating serum IL-6 levels comprising up to 67 428 (ndiscovery = 52 654 and nreplication = 14 774) individuals of European ancestry. The inverse variance fixed-effects based discovery meta-analysis, followed by replication led to the identification of two independent loci, IL1F10/IL1RN rs6734238 on Chromosome (Chr) 2q14, (pcombined = 1.8 × 10-11), HLA-DRB1/DRB5 rs660895 on Chr6p21 (pcombined = 1.5 × 10-10) in the combined meta-analyses of all samples. We also replicated the IL6R rs4537545 locus on Chr1q21 (pcombined = 1.2 × 10-122). Our study identifies novel loci for circulating IL-6 levels uncovering new immunological and inflammatory pathways that may influence IL-6 pathobiology.

OriginalsprogEngelsk
TidsskriftHuman Molecular Genetics
Vol/bind30
Udgave nummer5
Sider (fra-til)393–409
ISSN0964-6906
DOI
StatusUdgivet - 2021

Bibliografisk note

© The Author(s) 2021. Published by Oxford University Press.

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