1. Multivariate Genome-wide Association Analysis of a Cytokine Network Reveals Variants with Widespread Immune, Haematological, and Cardiometabolic Pleiotropy.
- Author
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Nath AP, Ritchie SC, Grinberg NF, Tang HH, Huang QQ, Teo SM, Ahola-Olli AV, Würtz P, Havulinna AS, Santalahti K, Pitkänen N, Lehtimäki T, Kähönen M, Lyytikäinen LP, Raitoharju E, Seppälä I, Sarin AP, Ripatti S, Palotie A, Perola M, Viikari JS, Jalkanen S, Maksimow M, Salmi M, Wallace C, Raitakari OT, Salomaa V, Abraham G, Kettunen J, and Inouye M
- Subjects
- Adolescent, Adult, Aged, Blood Proteins genetics, Blood Proteins immunology, Cardiovascular Diseases immunology, Cardiovascular Diseases pathology, Child, Cytokines immunology, Female, Follow-Up Studies, Gene Regulatory Networks, Genetic Predisposition to Disease, Genome, Human, Humans, Longitudinal Studies, Male, Middle Aged, Prognosis, Prospective Studies, Young Adult, Biomarkers analysis, Cardiovascular Diseases genetics, Cytokines genetics, Genetic Pleiotropy, Genome-Wide Association Study, Polymorphism, Single Nucleotide, Quantitative Trait Loci
- Abstract
Cytokines are essential regulatory components of the immune system, and their aberrant levels have been linked to many disease states. Despite increasing evidence that cytokines operate in concert, many of the physiological interactions between cytokines, and the shared genetic architecture that underlies them, remain unknown. Here, we aimed to identify and characterize genetic variants with pleiotropic effects on cytokines. Using three population-based cohorts (n = 9,263), we performed multivariate genome-wide association studies (GWAS) for a correlation network of 11 circulating cytokines, then combined our results in meta-analysis. We identified a total of eight loci significantly associated with the cytokine network, of which two (PDGFRB and ABO) had not been detected previously. In addition, conditional analyses revealed a further four secondary signals at three known cytokine loci. Integration, through the use of Bayesian colocalization analysis, of publicly available GWAS summary statistics with the cytokine network associations revealed shared causal variants between the eight cytokine loci and other traits; in particular, cytokine network variants at the ABO, SERPINE2, and ZFPM2 loci showed pleiotropic effects on the production of immune-related proteins, on metabolic traits such as lipoprotein and lipid levels, on blood-cell-related traits such as platelet count, and on disease traits such as coronary artery disease and type 2 diabetes., (Copyright © 2019 American Society of Human Genetics. Published by Elsevier Inc. All rights reserved.)
- Published
- 2019
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