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Multivariate Genome-wide Association Analysis of a Cytokine Network Reveals Variants with Widespread Immune, Haematological, and Cardiometabolic Pleiotropy.
American Journal of Human Genetics ( IF 9.8 ) Pub Date : 2019-10-31 , DOI: 10.1016/j.ajhg.2019.10.001
Artika P Nath 1 , Scott C Ritchie 2 , Nastasiya F Grinberg 3 , Howard Ho-Fung Tang 4 , Qin Qin Huang 5 , Shu Mei Teo 2 , Ari V Ahola-Olli 6 , Peter Würtz 7 , Aki S Havulinna 8 , Kristiina Santalahti 9 , Niina Pitkänen 10 , Terho Lehtimäki 11 , Mika Kähönen 12 , Leo-Pekka Lyytikäinen 11 , Emma Raitoharju 11 , Ilkka Seppälä 11 , Antti-Pekka Sarin 8 , Samuli Ripatti 13 , Aarno Palotie 14 , Markus Perola 8 , Jorma S Viikari 15 , Sirpa Jalkanen 9 , Mikael Maksimow 9 , Marko Salmi 16 , Chris Wallace 17 , Olli T Raitakari 18 , Veikko Salomaa 9 , Gad Abraham 19 , Johannes Kettunen 20 , Michael Inouye 21
Affiliation  

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.

中文翻译:

细胞因子网络的多变量全基因组关联分析揭示了具有广泛免疫、血液学和心脏代谢多效性的变异。

细胞因子是免疫系统的重要调节成分,其异常水平与许多疾病状态有关。尽管越来越多的证据表明细胞因子协同作用,但细胞因子之间的许多生理相互作用以及它们共同的遗传结构仍然未知。在这里,我们旨在识别和表征对细胞因子具有多效性影响的遗传变异。使用三个基于人群的队列 (n = 9,263),我们对 11 种循环细胞因子的相关网络进行了多变量全基因组关联研究 (GWAS),然后将我们的结果结合到荟萃分析中。我们确定了总共八个与细胞因子网络显着相关的位点,其中两个(PDGFRB 和 ABO)以前没有被检测到。此外,条件分析揭示了三个已知细胞因子基因座的另外四个次级信号。通过使用贝叶斯共定位分析,将公开可用的 GWAS 汇总统计数据与细胞因子网络关联进行整合,揭示了八个细胞因子基因座和其他特征之间共有的因果变异;特别是,ABO、SERPINE2 和 ZFPM2 基因座的细胞因子网络变异体对免疫相关蛋白的产生、脂蛋白和脂质水平等代谢特征、血小板计数等血细胞相关特征和关于冠状动脉疾病和2型糖尿病等疾病特征。公开可用的 GWAS 汇总统计数据与细胞因子网络关联揭示了八个细胞因子基因座和其他特征之间的共同因果变异;特别是,ABO、SERPINE2 和 ZFPM2 基因座的细胞因子网络变异体对免疫相关蛋白的产生、脂蛋白和脂质水平等代谢特征、血小板计数等血细胞相关特征和关于冠状动脉疾病和2型糖尿病等疾病特征。公开可用的 GWAS 汇总统计数据与细胞因子网络关联揭示了八个细胞因子基因座和其他特征之间的共同因果变异;特别是,ABO、SERPINE2 和 ZFPM2 基因座的细胞因子网络变异体对免疫相关蛋白的产生、脂蛋白和脂质水平等代谢特征、血小板计数等血细胞相关特征和关于冠状动脉疾病和2型糖尿病等疾病特征。
更新日期:2019-11-01
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