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Brazel DM, Jiang Y, Hughey JM, Turcot V, Zhan X, Gong J, Batini C, Weissenkampen JD, Liu M, Barnes DR, Bertelsen S, Chou YL, Erzurumluoglu AM, Faul JD, Haessler J, Hammerschlag AR, Hsu C, Kapoor M, Lai D, Le N, de Leeuw CA, Loukola A, Mangino M, Melbourne CA, Pistis G, Qaiser B, Rohde R, Shao Y, Stringham H, Wetherill L, Zhao W, Agrawal A, Bierut L, Chen C, Eaton CB, Goate A, Haiman C, Heath A, Iacono WG, Martin NG, Polderman TJ, Reiner A, Rice J, Schlessinger D, Scholte HS, Smith JA, Tardif JC, Tindle HA, van der Leij AR, Boehnke M, Chang-Claude J, Cucca F, David SP, Foroud T, Howson JMM, Kardia SLR, Kooperberg C, Laakso M, Lettre G, Madden P, McGue M, North K, Posthuma D, Spector T, Stram D, Tobin MD, Weir DR, Kaprio J, Abecasis GR, Liu DJ, Vrieze S. Exome Chip Meta-analysis Fine Maps Causal Variants and Elucidates the Genetic Architecture of Rare Coding Variants in Smoking and Alcohol Use. Biol Psychiatry 2019; 85:946-955. [PMID: 30679032 PMCID: PMC6534468 DOI: 10.1016/j.biopsych.2018.11.024] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 11/05/2018] [Accepted: 11/29/2018] [Indexed: 12/21/2022]
Abstract
BACKGROUND Smoking and alcohol use have been associated with common genetic variants in multiple loci. Rare variants within these loci hold promise in the identification of biological mechanisms in substance use. Exome arrays and genotype imputation can now efficiently genotype rare nonsynonymous and loss of function variants. Such variants are expected to have deleterious functional consequences and to contribute to disease risk. METHODS We analyzed ∼250,000 rare variants from 16 independent studies genotyped with exome arrays and augmented this dataset with imputed data from the UK Biobank. Associations were tested for five phenotypes: cigarettes per day, pack-years, smoking initiation, age of smoking initiation, and alcoholic drinks per week. We conducted stratified heritability analyses, single-variant tests, and gene-based burden tests of nonsynonymous/loss-of-function coding variants. We performed a novel fine-mapping analysis to winnow the number of putative causal variants within associated loci. RESULTS Meta-analytic sample sizes ranged from 152,348 to 433,216, depending on the phenotype. Rare coding variation explained 1.1% to 2.2% of phenotypic variance, reflecting 11% to 18% of the total single nucleotide polymorphism heritability of these phenotypes. We identified 171 genome-wide associated loci across all phenotypes. Fine mapping identified putative causal variants with double base-pair resolution at 24 of these loci, and between three and 10 variants for 65 loci. Twenty loci contained rare coding variants in the 95% credible intervals. CONCLUSIONS Rare coding variation significantly contributes to the heritability of smoking and alcohol use. Fine-mapping genome-wide association study loci identifies specific variants contributing to the biological etiology of substance use behavior.
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Affiliation(s)
- David M Brazel
- Institute for Behavioral Genetics, University of Colorado Boulder, Boulder, Colorado; Department of Molecular, Cellular, and Developmental Biology, University of Colorado Boulder, Boulder, Colorado
| | - Yu Jiang
- Department of Public Health Sciences, Penn State College of Medicine, Hershey, Pennsylvania
| | - Jordan M Hughey
- Department of Public Health Sciences, Penn State College of Medicine, Hershey, Pennsylvania
| | - Valérie Turcot
- Department of Medicine, Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada; Montreal Heart Institute, Montreal, Quebec, Canada
| | - Xiaowei Zhan
- Department of Clinical Science, Center for Genetics of Host Defense, University of Texas Southwestern, Dallas, Texas
| | - Jian Gong
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Chiara Batini
- Department of Health Sciences, University of Leicester, Leicester, United Kingdom
| | - J Dylan Weissenkampen
- Department of Public Health Sciences, Penn State College of Medicine, Hershey, Pennsylvania
| | - MengZhen Liu
- Department of Psychology, University of Minnesota, Minneapolis, Minnesota
| | - Daniel R Barnes
- Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
| | - Sarah Bertelsen
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Yi-Ling Chou
- Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri
| | | | - Jessica D Faul
- Survey Research Center, Institute for Social Research, University of Michigan, Ann Arbor, Michigan
| | - Jeff Haessler
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Anke R Hammerschlag
- Department of Complex Trait Genetics, Center for Neurogenomics and Cognitive Research, Amsterdam Neuroscience, VU University Amsterdam, University of Amsterdam, Amsterdam, the Netherlands
| | - Chris Hsu
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Manav Kapoor
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Dongbing Lai
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Nhung Le
- Department of Medical Microbiology, Immunology and Cell Biology, Southern Illinois University School of Medicine, Springfield, Illinois
| | - Christiaan A de Leeuw
- Department of Complex Trait Genetics, Center for Neurogenomics and Cognitive Research, Amsterdam Neuroscience, VU University Amsterdam, University of Amsterdam, Amsterdam, the Netherlands
| | - Anu Loukola
- Institute for Molecular Medicine Finland, University of Helsinki, Helsinki, Finland; Department of Public Health, University of Helsinki, Helsinki, Finland
| | - Massimo Mangino
- Department of Twin Research and Genetic Epidemiology, King's College London, London, United Kingdom; National Institute for Health Research Biomedical Research Centre at Guy's and St Thomas' Foundation Trust, London, United Kingdom
| | - Carl A Melbourne
- Department of Health Sciences, University of Leicester, Leicester, United Kingdom
| | - Giorgio Pistis
- Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche, Monserrato, Italy
| | - Beenish Qaiser
- Institute for Molecular Medicine Finland, University of Helsinki, Helsinki, Finland; Department of Public Health, University of Helsinki, Helsinki, Finland
| | - Rebecca Rohde
- Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Yaming Shao
- Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Heather Stringham
- Department of Biostatistics, School of Public Health, University of Michigan, Ann Arbor, Michigan
| | - Leah Wetherill
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Wei Zhao
- Department of Epidemiology, University of Michigan, Ann Arbor, Michigan
| | - Arpana Agrawal
- Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri
| | - Laura Bierut
- Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri
| | - Chu Chen
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington; Department of Epidemiology, Head and Neck Surgery Center, University of Washington, Seattle, Washington; Department of Otolaryngology, Head and Neck Surgery Center, University of Washington, Seattle, Washington
| | - Charles B Eaton
- Department of Family Medicine, Brown University, Providence, Rhode Island
| | - Alison Goate
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Christopher Haiman
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Andrew Heath
- Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri
| | - William G Iacono
- Department of Psychology, University of Minnesota, Minneapolis, Minnesota
| | | | - Tinca J Polderman
- Department of Complex Trait Genetics, Center for Neurogenomics and Cognitive Research, Amsterdam Neuroscience, VU University Amsterdam, University of Amsterdam, Amsterdam, the Netherlands
| | - Alex Reiner
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington; Department of Epidemiology, Head and Neck Surgery Center, University of Washington, Seattle, Washington
| | - John Rice
- Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri; Department of Mathematics, Washington University in St. Louis, St. Louis, Missouri
| | - David Schlessinger
- National Institute on Aging, National Institutes of Health, Bethesda, Maryland
| | - H Steven Scholte
- Department of Psychology, University of Amsterdam, Amsterdam, the Netherlands; Amsterdam Brain and Cognition, University of Amsterdam, Amsterdam, the Netherlands
| | - Jennifer A Smith
- Department of Epidemiology, University of Michigan, Ann Arbor, Michigan
| | - Jean-Claude Tardif
- Department of Medicine, Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada; Montreal Heart Institute, Montreal, Quebec, Canada
| | - Hilary A Tindle
- Department of Medicine, Vanderbilt University, Nashville, Tennessee
| | - Andries R van der Leij
- Department of Psychology, University of Amsterdam, Amsterdam, the Netherlands; Amsterdam Brain and Cognition, University of Amsterdam, Amsterdam, the Netherlands
| | - Michael Boehnke
- Department of Biostatistics, School of Public Health, University of Michigan, Ann Arbor, Michigan
| | - Jenny Chang-Claude
- Division of Cancer Epidemiology, German Cancer Research Center, Heidelberg, Germany
| | - Francesco Cucca
- Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche, Monserrato, Italy
| | - Sean P David
- Department of Medicine, Stanford University, Stanford, California
| | - Tatiana Foroud
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Joanna M M Howson
- Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
| | - Sharon L R Kardia
- Department of Epidemiology, University of Michigan, Ann Arbor, Michigan
| | - Charles Kooperberg
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Markku Laakso
- Department of Internal Medicine, Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland
| | - Guillaume Lettre
- Department of Medicine, Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada; Montreal Heart Institute, Montreal, Quebec, Canada
| | - Pamela Madden
- Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri
| | - Matt McGue
- Department of Psychology, University of Minnesota, Minneapolis, Minnesota
| | - Kari North
- Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Danielle Posthuma
- Department of Complex Trait Genetics, Center for Neurogenomics and Cognitive Research, Amsterdam Neuroscience, VU University Amsterdam, University of Amsterdam, Amsterdam, the Netherlands; Department of Clinical Genetics, VU University Medical Centre, University of Amsterdam, Amsterdam, the Netherlands
| | - Timothy Spector
- Department of Twin Research and Genetic Epidemiology, King's College London, London, United Kingdom
| | - Daniel Stram
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Martin D Tobin
- Department of Health Sciences, University of Leicester, Leicester, United Kingdom
| | - David R Weir
- Survey Research Center, Institute for Social Research, University of Michigan, Ann Arbor, Michigan
| | - Jaakko Kaprio
- Institute for Molecular Medicine Finland, University of Helsinki, Helsinki, Finland; Department of Public Health, University of Helsinki, Helsinki, Finland
| | - Gonçalo R Abecasis
- Regeneron Pharmaceuticals, Tarrytown, New York; Department of Biostatistics, School of Public Health, University of Michigan, Ann Arbor, Michigan
| | - Dajiang J Liu
- Institute of Personalized Medicine, Penn State College of Medicine, Hershey, Pennsylvania.
| | - Scott Vrieze
- Department of Psychology, University of Minnesota, Minneapolis, Minnesota.
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