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Significance of risk polymorphisms for depression depends on stress exposure. Sci Rep 2018; 8:3946. [PMID: 29500446 PMCID: PMC5834495 DOI: 10.1038/s41598-018-22221-z] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 02/12/2018] [Indexed: 12/15/2022] Open
Abstract
Depression is a polygenic and multifactorial disorder where environmental effects exert a significant impact, yet most genetic studies do not consider the effect of stressors which may be one reason for the lack of replicable results in candidate gene studies, GWAS and between human studies and animal models. Relevance of functional polymorphisms in seven candidate genes previously implicated in animal and human studies on a depression-related phenotype given various recent stress exposure levels was assessed with Bayesian relevance analysis in 1682 subjects. This Bayesian analysis indicated a gene-environment interaction whose significance was also tested with a traditional multivariate analysis using general linear models. The investigated genetic factors were only relevant in the moderate and/or high stress exposure groups. Rank order of genes was GALR2 > BDNF > P2RX7 > HTR1A > SLC6A4 > CB1 > HTR2A, with strong relevance for the first four. Robust gene-gene-environment interaction was found between BDNF and HTR1A. Gene-environment interaction effect was confirmed, namely no main effect of genes, but a significant modulatory effect on environment-induced development of depression were found. Our data support the strong causative role of the environment modified by genetic factors, similar to animal models. Gene-environment interactions point to epigenetic factors associated with risk SNPs. Galanin-2 receptor, BDNF and X-type purin-7 receptor could be drug targets for new antidepressants.
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152
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Uppu S, Krishna A, Gopalan RP. A Review on Methods for Detecting SNP Interactions in High-Dimensional Genomic Data. IEEE/ACM TRANSACTIONS ON COMPUTATIONAL BIOLOGY AND BIOINFORMATICS 2018; 15:599-612. [PMID: 28060710 DOI: 10.1109/tcbb.2016.2635125] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this era of genome-wide association studies (GWAS), the quest for understanding the genetic architecture of complex diseases is rapidly increasing more than ever before. The development of high throughput genotyping and next generation sequencing technologies enables genetic epidemiological analysis of large scale data. These advances have led to the identification of a number of single nucleotide polymorphisms (SNPs) responsible for disease susceptibility. The interactions between SNPs associated with complex diseases are increasingly being explored in the current literature. These interaction studies are mathematically challenging and computationally complex. These challenges have been addressed by a number of data mining and machine learning approaches. This paper reviews the current methods and the related software packages to detect the SNP interactions that contribute to diseases. The issues that need to be considered when developing these models are addressed in this review. The paper also reviews the achievements in data simulation to evaluate the performance of these models. Further, it discusses the future of SNP interaction analysis.
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Hindorff LA, Bonham VL, Brody LC, Ginoza MEC, Hutter CM, Manolio TA, Green ED. Prioritizing diversity in human genomics research. Nat Rev Genet 2018; 19:175-185. [PMID: 29151588 PMCID: PMC6532668 DOI: 10.1038/nrg.2017.89] [Citation(s) in RCA: 240] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Recent studies have highlighted the imperatives of including diverse and under-represented individuals in human genomics research and the striking gaps in attaining that inclusion. With its multidecade experience in supporting research and policy efforts in human genomics, the National Human Genome Research Institute is committed to establishing foundational approaches to study the role of genomic variation in health and disease that include diverse populations. Large-scale efforts to understand biology and health have yielded key scientific findings, lessons and recommendations on how to increase diversity in genomic research studies and the genomic research workforce. Increased attention to diversity will increase the accuracy, utility and acceptability of using genomic information for clinical care.
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Affiliation(s)
- Lucia A Hindorff
- National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland 20892-2152, USA
| | - Vence L Bonham
- National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland 20892-2152, USA
| | - Lawrence C Brody
- National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland 20892-2152, USA
| | - Margaret E C Ginoza
- National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland 20892-2152, USA
| | - Carolyn M Hutter
- National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland 20892-2152, USA
| | - Teri A Manolio
- National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland 20892-2152, USA
| | - Eric D Green
- National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland 20892-2152, USA
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Skare Ø, Lie RT, Haaland ØA, Gjerdevik M, Romanowska J, Gjessing HK, Jugessur A. Analysis of Parent-of-Origin Effects on the X Chromosome in Asian and European Orofacial Cleft Triads Identifies Associations with DMD, FGF13, EGFL6, and Additional Loci at Xp22.2. Front Genet 2018. [PMID: 29520293 PMCID: PMC5827165 DOI: 10.3389/fgene.2018.00025] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Background: Although both the mother's and father's alleles are present in the offspring, they may not operate at the same level. These parent-of-origin (PoO) effects have not yet been explored on the X chromosome, which motivated us to develop new methods for detecting such effects. Orofacial clefts (OFCs) exhibit sex-specific differences in prevalence and are examples of traits where a search for various types of effects on the X chromosome might be relevant. Materials and Methods: We upgraded our R-package Haplin to enable genome-wide analyses of PoO effects, as well as power simulations for different statistical models. 14,486 X-chromosome SNPs in 1,291 Asian and 1,118 European case-parent triads of isolated OFCs were available from a previous GWAS. For each ethnicity, cleft lip with or without cleft palate (CL/P) and cleft palate only (CPO) were analyzed separately using two X-inactivation models and a sliding-window approach to haplotype analysis. In addition, we performed analyses restricted to female offspring. Results: Associations were identified in "Dystrophin" (DMD, Xp21.2-p21.1), "Fibroblast growth factor 13" (FGF13, Xq26.3-q27.1) and "EGF-like domain multiple 6" (EGFL6, Xp22.2), with biologically plausible links to OFCs. Unlike EGFL6, the other associations on chromosomal region Xp22.2 had no apparent connections to OFCs. However, the Xp22.2 region itself is of potential interest because it contains genes for clefting syndromes [for example, "Oral-facial-digital syndrome 1" (OFD1) and "Midline 1" (MID1)]. Overall, the identified associations were highly specific for ethnicity, cleft subtype and X-inactivation model, except for DMD in which associations were identified in both CPO and CL/P, in the model with X-inactivation and in Europeans only. Discussion/Conclusion: The specificity of the associations for ethnicity, cleft subtype and X-inactivation model underscores the utility of conducting subanalyses, despite the ensuing need to adjust for additional multiple testing. Further investigations are needed to confirm the associations with DMD, EGF16, and FGF13. Furthermore, chromosomal region Xp22.2 appears to be a hotspot for genes implicated in clefting syndromes and thus constitutes an exciting direction to pursue in future OFCs research. More generally, the new methods presented here are readily adaptable to the study of X-linked PoO effects in other outcomes that use a family-based design.
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Affiliation(s)
- Øivind Skare
- Department of Occupational Medicine and Epidemiology, National Institute of Occupational Health, Oslo, Norway
| | - Rolv T Lie
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.,Centre for Fertility and Health (CeFH), Norwegian Institute of Public Health, Oslo, Norway
| | - Øystein A Haaland
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - Miriam Gjerdevik
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.,Department of Genetics and Bioinformatics, Norwegian Institute of Public Health, Oslo, Norway
| | - Julia Romanowska
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.,Computational Biology Unit, University of Bergen, Bergen, Norway
| | - Håkon K Gjessing
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.,Centre for Fertility and Health (CeFH), Norwegian Institute of Public Health, Oslo, Norway
| | - Astanand Jugessur
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.,Centre for Fertility and Health (CeFH), Norwegian Institute of Public Health, Oslo, Norway.,Department of Genetics and Bioinformatics, Norwegian Institute of Public Health, Oslo, Norway
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Abstract
The mediation formula for the identification of natural (in)direct effects has facilitated mediation analyses that better respect the nature of the data, with greater consideration of the need for confounding control. The default assumptions on which it relies are strong, however. In particular, they are known to be violated when confounders of the mediator-outcome association are affected by the exposure. This complicates extensions of counterfactual-based mediation analysis to settings that involve repeatedly measured mediators, or multiple correlated mediators. VanderWeele, Vansteelandt, and Robins introduced so-called interventional (in)direct effects. These can be identified under much weaker conditions than natural (in)direct effects, but have the drawback of not adding up to the total effect. In this article, we adapt their proposal to achieve an exact decomposition of the total effect, and extend it to the multiple mediator setting. Interestingly, the proposed effects capture the path-specific effects of an exposure on an outcome that are mediated by distinct mediators, even when-as often-the structural dependence between the multiple mediators is unknown, for instance, when the direction of the causal effects between the mediators is unknown, or there may be unmeasured common causes of the mediators.
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Abstract
PURPOSE The prevalence of myopia has increased dramatically worldwide within the last three decades. Recent studies have shown that refractive development is influenced by environmental, behavioral, and inherited factors. This review aims to analyze recent progress in the genetics of refractive error and myopia. METHODS A comprehensive literature search of PubMed and OMIM was conducted to identify relevant articles in the genetics of refractive error. RESULTS Genome-wide association and sequencing studies have increased our understanding of the genetics involved in refractive error. These studies have identified interesting candidate genes. All genetic loci discovered to date indicate that refractive development is a heterogeneous process mediated by a number of overlapping biological processes. The exact mechanisms by which these biological networks regulate eye growth are poorly understood. Although several individual genes and/or molecular pathways have been investigated in animal models, a systematic network-based approach in modeling human refractive development is necessary to understand the complex interplay between genes and environment in refractive error. CONCLUSION New biomedical technologies and better-designed studies will continue to refine our understanding of the genetics and molecular pathways of refractive error, and may lead to preventative and therapeutic measures to combat the myopia epidemic.
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157
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Han SS, Chatterjee N. Review of Statistical Methods for Gene-Environment Interaction Analysis. CURR EPIDEMIOL REP 2018. [DOI: 10.1007/s40471-018-0135-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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158
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Salvatore JE, Savage JE, Barr P, Wolen AR, Aliev F, Vuoksimaa E, Latvala A, Pulkkinen L, Rose RJ, Kaprio J, Dick DM. Incorporating Functional Genomic Information to Enhance Polygenic Signal and Identify Variants Involved in Gene-by-Environment Interaction for Young Adult Alcohol Problems. Alcohol Clin Exp Res 2018; 42:413-423. [PMID: 29121402 PMCID: PMC5785466 DOI: 10.1111/acer.13551] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 11/02/2017] [Indexed: 12/18/2022]
Abstract
BACKGROUND Characterizing aggregate genetic risk for alcohol misuse and identifying variants involved in gene-by-environment (G × E) interaction effects has so far been a major challenge. We hypothesized that functional genomic information could be used to enhance detection of polygenic signal underlying alcohol misuse and to prioritize identification of single nucleotide polymorphisms (SNPs) most likely to exhibit G × E effects. METHODS We examined these questions in the young adult FinnTwin12 sample (n = 1,170). We used genomewide association estimates from an independent sample to derive 2 types of polygenic scores for alcohol problems in FinnTwin12. Genomewide polygenic scores included all SNPs surpassing a designated p-value threshold. DNase polygenic scores were a subset of the genomewide polygenic scores including only variants in DNase I hypersensitive sites (DHSs), which are open chromatin marks likely to index regions with a regulatory function. We conducted parallel analyses using height as a nonpsychiatric model phenotype to evaluate the consistency of effects. For the G × E analyses, we examined whether SNPs in DHSs were overrepresented among SNPs demonstrating significant G × E effects in an interaction between romantic relationship status and intoxication frequency. RESULTS Contrary to our expectations, we found that DNase polygenic scores were not more strongly predictive of alcohol problems than conventional polygenic scores. However, variants in DNase polygenic scores had per-SNP effects that were up to 1.4 times larger than variants in conventional polygenic scores. This same pattern of effects was also observed in supplementary analyses with height. In G × E models, SNPs in DHSs were modestly overrepresented among SNPs with significant interaction effects for intoxication frequency. CONCLUSIONS These findings highlight the potential utility of integrating functional genomic annotation information to increase the signal-to-noise ratio in polygenic scores and identify genetic variants that may be most susceptible to environmental modification.
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Affiliation(s)
- Jessica E. Salvatore
- Department of Psychology, Virginia Commonwealth University, PO Box 842018, Richmond, VA 23284-2018, United States
- Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, PO Box 980126, Richmond, VA 23298, United States
| | - Jeanne E. Savage
- Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, PO Box 980126, Richmond, VA 23298, United States
| | - Peter Barr
- Department of Psychology, Virginia Commonwealth University, PO Box 842018, Richmond, VA 23284-2018, United States
| | - Aaron R. Wolen
- Center for Clinical and Translational Research, Virginia Commonwealth University, P.O. Box 980261, Richmond, VA 23298-0261, United States
| | - Fazil Aliev
- Department of Psychology, Virginia Commonwealth University, PO Box 842018, Richmond, VA 23284-2018, United States
- Faculty of Business, Karabuk University, 78050 Karabuk, Turkey
| | - Eero Vuoksimaa
- Institute for Molecular Medicine FIMM, University of Helsinki, PO Box 20 (Tukholmankatu 8), FI-00014 Helsinki, Finland
| | - Antti Latvala
- Institute for Molecular Medicine FIMM, University of Helsinki, PO Box 20 (Tukholmankatu 8), FI-00014 Helsinki, Finland
| | - Lea Pulkkinen
- Department of Psychology, University of Jyväskylä, PO Box 35, 40014 University of Jyväskylä, Jyväskylä, Finland
| | - Richard J. Rose
- Department of Psychological & Brain Sciences, Indiana University, 1101 E. 10th St., Bloomington, IN 47405, United States
| | - Jaakko Kaprio
- Institute for Molecular Medicine FIMM, University of Helsinki, PO Box 20 (Tukholmankatu 8), FI-00014 Helsinki, Finland
| | - Danielle M. Dick
- Department of Psychology, Virginia Commonwealth University, PO Box 842018, Richmond, VA 23284-2018, United States
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Verma SS, Ritchie MD. Another Round of "Clue" to Uncover the Mystery of Complex Traits. Genes (Basel) 2018; 9:E61. [PMID: 29370075 PMCID: PMC5852557 DOI: 10.3390/genes9020061] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 12/19/2017] [Accepted: 01/15/2018] [Indexed: 12/13/2022] Open
Abstract
A plethora of genetic association analyses have identified several genetic risk loci. Technological and statistical advancements have now led to the identification of not only common genetic variants, but also low-frequency variants, structural variants, and environmental factors, as well as multi-omics variations that affect the phenotypic variance of complex traits in a population, thus referred to as complex trait architecture. The concept of heritability, or the proportion of phenotypic variance due to genetic inheritance, has been studied for several decades, but its application is mainly in addressing the narrow sense heritability (or additive genetic component) from Genome-Wide Association Studies (GWAS). In this commentary, we reflect on our perspective on the complexity of understanding heritability for human traits in comparison to model organisms, highlighting another round of clues beyond GWAS and an alternative approach, investigating these clues comprehensively to help in elucidating the genetic architecture of complex traits.
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Affiliation(s)
- Shefali Setia Verma
- The Huck Institute of Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA.
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
| | - Marylyn D Ritchie
- The Huck Institute of Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA.
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
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160
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Lee PC, Ahmed I, Loriot MA, Mulot C, Paul KC, Bronstein JM, Ritz B, Elbaz A. Smoking and Parkinson disease: Evidence for gene-by-smoking interactions. Neurology 2018; 90:e583-e592. [PMID: 29352099 DOI: 10.1212/wnl.0000000000004953] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Accepted: 10/20/2017] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVE To investigate whether cigarette smoking interacts with genes involved in individual susceptibility to xenobiotics for the risk of Parkinson disease (PD). METHODS Two French population-based case-control studies (513 patients, 1,147 controls) were included as a discovery sample to examine gene-smoking interactions based on 3,179 single nucleotide polymorphisms (SNPs) in 289 genes involved in individual susceptibility to xenobiotics. SNP-by-cigarette smoking interactions were tested in the discovery sample through an empirical Bayes (EB) approach. Nine SNPs were selected for replication in a population-based case-control study from California (410 patients, 845 controls) with standard logistic regression and the EB approach. For SNPs that replicated, we performed pooled analyses including the discovery and replication datasets and computed pooled odds ratios and confidence intervals (CIs) using random-effects meta-analysis. RESULTS Nine SNPs interacted with smoking in the discovery dataset and were selected for replication. Interactions of smoking with rs4240705 in the RXRA gene and rs1900586 in the SLC17A6 gene were replicated. In pooled analyses (logistic regression), the interactions between smoking and rs4240705-G and rs1900586-G were 1.66 (95% CI 1.28-2.14, p = 1.1 × 10-4, p for heterogeneity = 0.366) and 1.61 (95% CI 1.17-2.21, p = 0.003, p for heterogeneity = 0.616), respectively. For both SNPs, while smoking was significantly less frequent in patients than controls in AA homozygotes, this inverse association disappeared in G allele carriers. CONCLUSIONS We identified and replicated suggestive gene-by-smoking interactions in PD. The inverse association of smoking with PD was less pronounced in carriers of minor alleles of both RXRA-rs4240705 and SLC17A6-rs1900586. These findings may help identify biological pathways involved in the inverse association between smoking and PD.
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Affiliation(s)
- Pei-Chen Lee
- From the Department of Health Care Management (P.-C.L.), College of Health Technology, National Taipei University of Nursing and Health Sciences, Taiwan; Biostatistics, Biomathematics, Pharmacoepidemiology and Infectious Diseases (I.A.), INSERM, UVSQ, Institut Pasteur, Université Paris-Saclay, Villejuif; Assistance-Publique-Hôpitaux de Paris (M.-A.L.), Hôpital Européen Georges Pompidou, Biochimie, Pharmacogénétique et Oncologie Moléculaire; INSERM UMR-S 1147 (C.M.), CRB EPIGENETEC, Université Paris Descartes, Sorbonne Paris Cité, Paris, France; Departments of Epidemiology (K.C.P., B.R.) and Environmental Health (J.M.B., B.R.), Fielding School of Public Health, and Department of Neurology (J.M.B., B.R.), Geffen School of Medicine, University of California at Los Angeles; and Université Paris-Saclay (A.E.), Université Paris-Sud, UVSQ, CESP, INSERM, Villejuif, France
| | - Ismaïl Ahmed
- From the Department of Health Care Management (P.-C.L.), College of Health Technology, National Taipei University of Nursing and Health Sciences, Taiwan; Biostatistics, Biomathematics, Pharmacoepidemiology and Infectious Diseases (I.A.), INSERM, UVSQ, Institut Pasteur, Université Paris-Saclay, Villejuif; Assistance-Publique-Hôpitaux de Paris (M.-A.L.), Hôpital Européen Georges Pompidou, Biochimie, Pharmacogénétique et Oncologie Moléculaire; INSERM UMR-S 1147 (C.M.), CRB EPIGENETEC, Université Paris Descartes, Sorbonne Paris Cité, Paris, France; Departments of Epidemiology (K.C.P., B.R.) and Environmental Health (J.M.B., B.R.), Fielding School of Public Health, and Department of Neurology (J.M.B., B.R.), Geffen School of Medicine, University of California at Los Angeles; and Université Paris-Saclay (A.E.), Université Paris-Sud, UVSQ, CESP, INSERM, Villejuif, France
| | - Marie-Anne Loriot
- From the Department of Health Care Management (P.-C.L.), College of Health Technology, National Taipei University of Nursing and Health Sciences, Taiwan; Biostatistics, Biomathematics, Pharmacoepidemiology and Infectious Diseases (I.A.), INSERM, UVSQ, Institut Pasteur, Université Paris-Saclay, Villejuif; Assistance-Publique-Hôpitaux de Paris (M.-A.L.), Hôpital Européen Georges Pompidou, Biochimie, Pharmacogénétique et Oncologie Moléculaire; INSERM UMR-S 1147 (C.M.), CRB EPIGENETEC, Université Paris Descartes, Sorbonne Paris Cité, Paris, France; Departments of Epidemiology (K.C.P., B.R.) and Environmental Health (J.M.B., B.R.), Fielding School of Public Health, and Department of Neurology (J.M.B., B.R.), Geffen School of Medicine, University of California at Los Angeles; and Université Paris-Saclay (A.E.), Université Paris-Sud, UVSQ, CESP, INSERM, Villejuif, France
| | - Claire Mulot
- From the Department of Health Care Management (P.-C.L.), College of Health Technology, National Taipei University of Nursing and Health Sciences, Taiwan; Biostatistics, Biomathematics, Pharmacoepidemiology and Infectious Diseases (I.A.), INSERM, UVSQ, Institut Pasteur, Université Paris-Saclay, Villejuif; Assistance-Publique-Hôpitaux de Paris (M.-A.L.), Hôpital Européen Georges Pompidou, Biochimie, Pharmacogénétique et Oncologie Moléculaire; INSERM UMR-S 1147 (C.M.), CRB EPIGENETEC, Université Paris Descartes, Sorbonne Paris Cité, Paris, France; Departments of Epidemiology (K.C.P., B.R.) and Environmental Health (J.M.B., B.R.), Fielding School of Public Health, and Department of Neurology (J.M.B., B.R.), Geffen School of Medicine, University of California at Los Angeles; and Université Paris-Saclay (A.E.), Université Paris-Sud, UVSQ, CESP, INSERM, Villejuif, France
| | - Kimberly C Paul
- From the Department of Health Care Management (P.-C.L.), College of Health Technology, National Taipei University of Nursing and Health Sciences, Taiwan; Biostatistics, Biomathematics, Pharmacoepidemiology and Infectious Diseases (I.A.), INSERM, UVSQ, Institut Pasteur, Université Paris-Saclay, Villejuif; Assistance-Publique-Hôpitaux de Paris (M.-A.L.), Hôpital Européen Georges Pompidou, Biochimie, Pharmacogénétique et Oncologie Moléculaire; INSERM UMR-S 1147 (C.M.), CRB EPIGENETEC, Université Paris Descartes, Sorbonne Paris Cité, Paris, France; Departments of Epidemiology (K.C.P., B.R.) and Environmental Health (J.M.B., B.R.), Fielding School of Public Health, and Department of Neurology (J.M.B., B.R.), Geffen School of Medicine, University of California at Los Angeles; and Université Paris-Saclay (A.E.), Université Paris-Sud, UVSQ, CESP, INSERM, Villejuif, France
| | - Jeff M Bronstein
- From the Department of Health Care Management (P.-C.L.), College of Health Technology, National Taipei University of Nursing and Health Sciences, Taiwan; Biostatistics, Biomathematics, Pharmacoepidemiology and Infectious Diseases (I.A.), INSERM, UVSQ, Institut Pasteur, Université Paris-Saclay, Villejuif; Assistance-Publique-Hôpitaux de Paris (M.-A.L.), Hôpital Européen Georges Pompidou, Biochimie, Pharmacogénétique et Oncologie Moléculaire; INSERM UMR-S 1147 (C.M.), CRB EPIGENETEC, Université Paris Descartes, Sorbonne Paris Cité, Paris, France; Departments of Epidemiology (K.C.P., B.R.) and Environmental Health (J.M.B., B.R.), Fielding School of Public Health, and Department of Neurology (J.M.B., B.R.), Geffen School of Medicine, University of California at Los Angeles; and Université Paris-Saclay (A.E.), Université Paris-Sud, UVSQ, CESP, INSERM, Villejuif, France
| | - Beate Ritz
- From the Department of Health Care Management (P.-C.L.), College of Health Technology, National Taipei University of Nursing and Health Sciences, Taiwan; Biostatistics, Biomathematics, Pharmacoepidemiology and Infectious Diseases (I.A.), INSERM, UVSQ, Institut Pasteur, Université Paris-Saclay, Villejuif; Assistance-Publique-Hôpitaux de Paris (M.-A.L.), Hôpital Européen Georges Pompidou, Biochimie, Pharmacogénétique et Oncologie Moléculaire; INSERM UMR-S 1147 (C.M.), CRB EPIGENETEC, Université Paris Descartes, Sorbonne Paris Cité, Paris, France; Departments of Epidemiology (K.C.P., B.R.) and Environmental Health (J.M.B., B.R.), Fielding School of Public Health, and Department of Neurology (J.M.B., B.R.), Geffen School of Medicine, University of California at Los Angeles; and Université Paris-Saclay (A.E.), Université Paris-Sud, UVSQ, CESP, INSERM, Villejuif, France
| | - Alexis Elbaz
- From the Department of Health Care Management (P.-C.L.), College of Health Technology, National Taipei University of Nursing and Health Sciences, Taiwan; Biostatistics, Biomathematics, Pharmacoepidemiology and Infectious Diseases (I.A.), INSERM, UVSQ, Institut Pasteur, Université Paris-Saclay, Villejuif; Assistance-Publique-Hôpitaux de Paris (M.-A.L.), Hôpital Européen Georges Pompidou, Biochimie, Pharmacogénétique et Oncologie Moléculaire; INSERM UMR-S 1147 (C.M.), CRB EPIGENETEC, Université Paris Descartes, Sorbonne Paris Cité, Paris, France; Departments of Epidemiology (K.C.P., B.R.) and Environmental Health (J.M.B., B.R.), Fielding School of Public Health, and Department of Neurology (J.M.B., B.R.), Geffen School of Medicine, University of California at Los Angeles; and Université Paris-Saclay (A.E.), Université Paris-Sud, UVSQ, CESP, INSERM, Villejuif, France.
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Rao DC, Sung YJ, Winkler TW, Schwander K, Borecki I, Cupples LA, Gauderman WJ, Rice K, Munroe PB, Psaty BM. Multiancestry Study of Gene-Lifestyle Interactions for Cardiovascular Traits in 610 475 Individuals From 124 Cohorts: Design and Rationale. ACTA ACUST UNITED AC 2018; 10:CIRCGENETICS.116.001649. [PMID: 28620071 DOI: 10.1161/circgenetics.116.001649] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 02/14/2017] [Indexed: 11/16/2022]
Abstract
BACKGROUND Several consortia have pursued genome-wide association studies for identifying novel genetic loci for blood pressure, lipids, hypertension, etc. They demonstrated the power of collaborative research through meta-analysis of study-specific results. METHODS AND RESULTS The Gene-Lifestyle Interactions Working Group was formed to facilitate the first large, concerted, multiancestry study to systematically evaluate gene-lifestyle interactions. In stage 1, genome-wide interaction analysis is performed in 53 cohorts with a total of 149 684 individuals from multiple ancestries. In stage 2 involving an additional 71 cohorts with 460 791 individuals from multiple ancestries, focused analysis is performed for a subset of the most promising variants from stage 1. In all, the study involves up to 610 475 individuals. Current focus is on cardiovascular traits including blood pressure and lipids, and lifestyle factors including smoking, alcohol, education (as a surrogate for socioeconomic status), physical activity, psychosocial variables, and sleep. The total sample sizes vary among projects because of missing data. Large-scale gene-lifestyle or more generally gene-environment interaction (G×E) meta-analysis studies can be cumbersome and challenging. This article describes the design and some of the approaches pursued in the interaction projects. CONCLUSIONS The Gene-Lifestyle Interactions Working Group provides an excellent framework for understanding the lifestyle context of genetic effects and to identify novel trait loci through analysis of interactions. An important and novel feature of our study is that the gene-lifestyle interaction (G×E) results may improve our knowledge about the underlying mechanisms for novel and already known trait loci.
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Floyd JS, Sitlani CM, Avery CL, Noordam R, Li X, Smith AV, Gogarten SM, Li J, Broer L, Evans DS, Trompet S, Brody JA, Stewart JD, Eicher JD, Seyerle AA, Roach J, Lange LA, Lin HJ, Kors JA, Harris TB, Li-Gao R, Sattar N, Cummings SR, Wiggins KL, Napier MD, Stürmer T, Bis JC, Kerr KF, Uitterlinden AG, Taylor KD, Stott DJ, de Mutsert R, Launer LJ, Busch EL, Méndez-Giráldez R, Sotoodehnia N, Soliman EZ, Li Y, Duan Q, Rosendaal FR, Slagboom PE, Wilhelmsen KC, Reiner AP, Chen YDI, Heckbert SR, Kaplan RC, Rice KM, Jukema JW, Johnson AD, Liu Y, Mook-Kanamori DO, Gudnason V, Wilson JG, Rotter JI, Laurie CC, Psaty BM, Whitsel EA, Cupples LA, Stricker BH. Large-scale pharmacogenomic study of sulfonylureas and the QT, JT and QRS intervals: CHARGE Pharmacogenomics Working Group. THE PHARMACOGENOMICS JOURNAL 2018; 18:127-135. [PMID: 27958378 PMCID: PMC5468495 DOI: 10.1038/tpj.2016.90] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 10/25/2016] [Accepted: 11/14/2016] [Indexed: 12/17/2022]
Abstract
Sulfonylureas, a commonly used class of medication used to treat type 2 diabetes, have been associated with an increased risk of cardiovascular disease. Their effects on QT interval duration and related electrocardiographic phenotypes are potential mechanisms for this adverse effect. In 11 ethnically diverse cohorts that included 71 857 European, African-American and Hispanic/Latino ancestry individuals with repeated measures of medication use and electrocardiogram (ECG) measurements, we conducted a pharmacogenomic genome-wide association study of sulfonylurea use and three ECG phenotypes: QT, JT and QRS intervals. In ancestry-specific meta-analyses, eight novel pharmacogenomic loci met the threshold for genome-wide significance (P<5 × 10-8), and a pharmacokinetic variant in CYP2C9 (rs1057910) that has been associated with sulfonylurea-related treatment effects and other adverse drug reactions in previous studies was replicated. Additional research is needed to replicate the novel findings and to understand their biological basis.
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Affiliation(s)
- James S Floyd
- Deparments of Epidemiology and Medicine, University of Washington, Seattle, WA, USA
| | | | - Christy L Avery
- Department of Epidemiology, University of North Carolina, Chapel Hill, NC, USA
| | - Raymond Noordam
- Department of Epidemiology, Erasmus MC - University Medical Center Rotterdam, Rotterdam, the Netherlands
- Department of Gerontology and Geriatrics, Leiden University Medical Center, Leiden, the Netherlands
| | - Xiaohui Li
- Institute for Translational Genomics and Population Sciences, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, California, USA
| | - Albert V Smith
- Icelandic Heart Association, Kopavogur, Iceland
- Faculty of Medicine, University of Iceland, Reykavik, Iceland
| | | | - Jin Li
- Department of Medicine, Division of Cardiovascular Medicine, Stanford University School of Medicine, Palo Alto, CA, USA
| | - Linda Broer
- Department of Internal Medicine, Erasmus MC - University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Daniel S Evans
- California Pacific Medical Center Research Institute, San Francisco, CA, USA
| | - Stella Trompet
- Department of Cardiology and Department of Gerontology and Geriatrics, Leiden University Medical Center, Leiden, the Netherlands
| | - Jennifer A Brody
- Department of Medicine, University of Washington, Seattle, WA, USA
| | - James D Stewart
- Department of Epidemiology, University of North Carolina, Chapel Hill, NC, USA
- Carolina Population Center, University of North Carolina, Chapel Hill, NC, USA
| | - John D Eicher
- Population Sciences Branch, National Heart Lung and Blood Institute, National Institutes of Health, Framingham, MA USA
- The Framingham Heart Study, Framingham, MA, USA
| | - Amanda A Seyerle
- Department of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN, USA
| | - Jeffrey Roach
- Research Computing Center, University of North Carolina, Chapel Hill, NC
| | - Leslie A Lange
- Department of Genetics, University of North Carolina, Chapel Hill, NC, USA
| | - Henry J Lin
- Institute for Translational Genomics and Population Sciences, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, California, USA
- Division of Medical Genetics, Harbor-UCLA Medical Center, Torrance, California, USA
| | - Jan A Kors
- Department of Medical Informatics, Erasmus MC - University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Tamara B Harris
- Laboratory of Epidemiology, Demography, and Biometry, National Institue on Aging, Bethesda, MD, USA
| | - Ruifang Li-Gao
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Naveed Sattar
- BHF Glasgow Cardiovascular Research Centre, Faculty of Medicine, Glasgow, United Kingdom
| | - Steven R Cummings
- California Pacific Medical Center Research Institute, San Francisco, CA, USA
| | - Kerri L Wiggins
- Department of Medicine, University of Washington, Seattle, WA, USA
| | - Melanie D Napier
- Department of Epidemiology, University of North Carolina, Chapel Hill, NC, USA
| | - Til Stürmer
- Department of Epidemiology, University of North Carolina, Chapel Hill, NC, USA
- Center for Pharmacoepidemiology, University of North Carolina, Chapel Hill, NC, USA
| | - Joshua C Bis
- Department of Medicine, University of Washington, Seattle, WA, USA
| | - Kathleen F Kerr
- Department of Biostatistics, University of Washington, Seattle, WA, USA
| | - André G Uitterlinden
- Department of Internal Medicine, Erasmus MC - University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Kent D Taylor
- Institute for Translational Genomics and Population Sciences, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, California, USA
| | - David J Stott
- Institute of Cardiovascular and Medical Sciences, Faculty of Medicine, University of Glasgow, Scotland, United Kingdom
| | - Renée de Mutsert
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Lenore J Launer
- Laboratory of Epidemiology, Demography, and Biometry, National Institue on Aging, Bethesda, MD, USA
| | - Evan L Busch
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | | | - Nona Sotoodehnia
- Deparments of Epidemiology and Medicine, University of Washington, Seattle, WA, USA
| | - Elsayed Z Soliman
- Epidemiological Cardiology Research Center (EPICARE), Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Yun Li
- Department of Biostatistics, Computer Science, and Genetics, University of North Carolina, Chapel Hill, NC, USA
| | - Qing Duan
- Research Computing Center, University of North Carolina, Chapel Hill, NC
| | - Frits R Rosendaal
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
| | - P Eline Slagboom
- Department of Medical Statistics and Bioinformatics, Section of Molecular Epidemiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Kirk C Wilhelmsen
- Research Computing Center, University of North Carolina, Chapel Hill, NC
- The Renaissance Computing Institute, Chapel Hill, NC, USA
| | - Alexander P Reiner
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
- Department of Epidemiology, University of Washington, Seattle, WA, USA
| | - Yii-Der I Chen
- Institute for Translational Genomics and Population Sciences, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, California, USA
| | - Susan R Heckbert
- Department of Epidemiology, University of Washington, Seattle, WA, USA
| | - Robert C Kaplan
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Kenneth M Rice
- Department of Biostatistics, University of Washington, Seattle, WA, USA
| | - J Wouter Jukema
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
- Interuniversity Cardiology Institute of the Netherlands, Utrecht, The Netherlands
| | - Andrew D Johnson
- Population Sciences Branch, National Heart Lung and Blood Institute, National Institutes of Health, Framingham, MA USA
- The Framingham Heart Study, Framingham, MA, USA
| | - Yongmei Liu
- Department of Epidemiology and Prevention, Division of Public Health Sciences, Wake Forest University, Winston-Salem, NC, USA
| | - Dennis O Mook-Kanamori
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
- Department of Public Health and Primary Care, Leiden University Medical Center, Leiden, the Netherlands
| | - Vilmundur Gudnason
- Icelandic Heart Association, Kopavogur, Iceland
- Faculty of Medicine, University of Iceland, Reykavik, Iceland
| | - James G Wilson
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS, USA
| | - Jerome I Rotter
- Institute for Translational Genomics and Population Sciences, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, California, USA
| | - Cathy C Laurie
- Department of Biostatistics, University of Washington, Seattle, WA, USA
| | - Bruce M Psaty
- Departments of Epidemiology, Health Services, and Medicine, University of Washington, Seattle, WA, USA
- Group Health Research Institute, Group Health Cooperative, Seattle, WA, USA
| | - Eric A Whitsel
- Departments of Epidemiology and Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - L Adrienne Cupples
- The Framingham Heart Study, Framingham, MA, USA
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
| | - Bruno H Stricker
- Department of Epidemiology, Erasmus MC - University Medical Center Rotterdam, Rotterdam, the Netherlands
- Inspectorate of Health Care, Utrecht, the Netherlands
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163
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Langley MR, Ghaisas S, Ay M, Luo J, Palanisamy BN, Jin H, Anantharam V, Kanthasamy A, Kanthasamy AG. Manganese exposure exacerbates progressive motor deficits and neurodegeneration in the MitoPark mouse model of Parkinson's disease: Relevance to gene and environment interactions in metal neurotoxicity. Neurotoxicology 2018; 64:240-255. [PMID: 28595911 PMCID: PMC5736468 DOI: 10.1016/j.neuro.2017.06.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 06/02/2017] [Accepted: 06/02/2017] [Indexed: 10/19/2022]
Abstract
Parkinson's disease (PD) is now recognized as a neurodegenerative condition caused by a complex interplay of genetic and environmental influences. Chronic manganese (Mn) exposure has been implicated in the development of PD. Since mitochondrial dysfunction is associated with PD pathology as well as Mn neurotoxicity, we investigated whether Mn exposure augments mitochondrial dysfunction and neurodegeneration in the nigrostriatal dopaminergic system using a newly available mitochondrially defective transgenic mouse model of PD, the MitoPark mouse. This unique PD model recapitulates key features of the disease including progressive neurobehavioral changes and neuronal degeneration. We exposed MitoPark mice to a low dose of Mn (10mg/kg, p.o.) daily for 4 weeks starting at age 8 wks and then determined the behavioral, neurochemical and histological changes. Mn exposure accelerated the rate of progression of motor deficits in MitoPark mice when compared to the untreated MitoPark group. Mn also worsened olfactory function in this model. Most importantly, Mn exposure intensified the depletion of striatal dopamine and nigral TH neuronal loss in MitoPark mice. The neurodegenerative changes were accompanied by enhanced oxidative damage in the striatum and substantia nigra (SN) of MitoPark mice treated with Mn. Furthermore, Mn-treated MitoPark mice had significantly more oligomeric protein and IBA-1-immunoreactive microglia cells, suggesting Mn augments neuroinflammatory processes in the nigrostriatal pathway. To further confirm the direct effect of Mn on impaired mitochondrial function, we also generated a mitochondrially defective dopaminergic cell model by knocking out the TFAM transcription factor by using a CRISPR-Cas9 gene-editing method. Seahorse mitochondrial bioenergetic analysis revealed that Mn decreases mitochondrial basal and ATP-linked respiration in the TFAM KO cells. Collectively, our results reveal that Mn can augment mitochondrial dysfunction to exacerbate nigrostriatal neurodegeneration and PD-related behavioral symptoms. Our study also demonstrates that the MitoPark mouse is an excellent model to study the gene-environment interactions associated with mitochondrial defects in the nigral dopaminergic system as well as to evaluate the contribution of potential environmental toxicant interactions in a slowly progressive model of Parkinsonism.
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Affiliation(s)
- Monica R Langley
- Parkinson Disorders Research Program, Iowa Center for Advanced Neurotoxicology, Department of Biomedical Sciences, Iowa State University, Ames, IA 50011, United States
| | - Shivani Ghaisas
- Parkinson Disorders Research Program, Iowa Center for Advanced Neurotoxicology, Department of Biomedical Sciences, Iowa State University, Ames, IA 50011, United States
| | - Muhammet Ay
- Parkinson Disorders Research Program, Iowa Center for Advanced Neurotoxicology, Department of Biomedical Sciences, Iowa State University, Ames, IA 50011, United States
| | - Jie Luo
- Parkinson Disorders Research Program, Iowa Center for Advanced Neurotoxicology, Department of Biomedical Sciences, Iowa State University, Ames, IA 50011, United States
| | - Bharathi N Palanisamy
- Parkinson Disorders Research Program, Iowa Center for Advanced Neurotoxicology, Department of Biomedical Sciences, Iowa State University, Ames, IA 50011, United States
| | - Huajun Jin
- Parkinson Disorders Research Program, Iowa Center for Advanced Neurotoxicology, Department of Biomedical Sciences, Iowa State University, Ames, IA 50011, United States
| | - Vellareddy Anantharam
- Parkinson Disorders Research Program, Iowa Center for Advanced Neurotoxicology, Department of Biomedical Sciences, Iowa State University, Ames, IA 50011, United States
| | - Arthi Kanthasamy
- Parkinson Disorders Research Program, Iowa Center for Advanced Neurotoxicology, Department of Biomedical Sciences, Iowa State University, Ames, IA 50011, United States
| | - Anumantha G Kanthasamy
- Parkinson Disorders Research Program, Iowa Center for Advanced Neurotoxicology, Department of Biomedical Sciences, Iowa State University, Ames, IA 50011, United States.
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164
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Genotypic variability-based genome-wide association study identifies non-additive loci HLA-C and IL12B for psoriasis. J Hum Genet 2017; 63:289-296. [DOI: 10.1038/s10038-017-0350-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 09/04/2017] [Accepted: 09/05/2017] [Indexed: 12/19/2022]
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165
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Gene-by-Psychosocial Factor Interactions Influence Diastolic Blood Pressure in European and African Ancestry Populations: Meta-Analysis of Four Cohort Studies. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017; 14:ijerph14121596. [PMID: 29258278 PMCID: PMC5751013 DOI: 10.3390/ijerph14121596] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 12/04/2017] [Accepted: 12/07/2017] [Indexed: 02/07/2023]
Abstract
Inter-individual variability in blood pressure (BP) is influenced by both genetic and non-genetic factors including socioeconomic and psychosocial stressors. A deeper understanding of the gene-by-socioeconomic/psychosocial factor interactions on BP may help to identify individuals that are genetically susceptible to high BP in specific social contexts. In this study, we used a genomic region-based method for longitudinal analysis, Longitudinal Gene-Environment-Wide Interaction Studies (LGEWIS), to evaluate the effects of interactions between known socioeconomic/psychosocial and genetic risk factors on systolic and diastolic BP in four large epidemiologic cohorts of European and/or African ancestry. After correction for multiple testing, two interactions were significantly associated with diastolic BP. In European ancestry participants, outward/trait anger score had a significant interaction with the C10orf107 genomic region (p = 0.0019). In African ancestry participants, depressive symptom score had a significant interaction with the HFE genomic region (p = 0.0048). This study provides a foundation for using genomic region-based longitudinal analysis to identify subgroups of the population that may be at greater risk of elevated BP due to the combined influence of genetic and socioeconomic/psychosocial risk factors.
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166
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Keeping Pace with the Red Queen: Identifying the Genetic Basis of Susceptibility to Infectious Disease. Genetics 2017; 208:779-789. [PMID: 29223971 PMCID: PMC5788537 DOI: 10.1534/genetics.117.300481] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 12/01/2017] [Indexed: 11/19/2022] Open
Abstract
The results of genome-wide association studies are known to be affected by epistasis and gene-by-environment interactions. Using a statistical model.... Genome-wide association studies are widely used to identify “disease genes” conferring resistance/susceptibility to infectious diseases. Using a combination of mathematical models and simulations, we demonstrate that genetic interactions between hosts and parasites [genotype-by-genotype (G × G) interactions] can drastically affect the results of these association scans and hamper our ability to detect genetic variation in susceptibility. When hosts and parasites coevolve, these G × G interactions often make genome-wide association studies unrepeatable over time or across host populations. Reanalyzing previously published data on Daphnia magna susceptibility to infection by Pasteuria ramosa, we identify genomic regions consistent with G × G interactions. We conclude by outlining possible avenues for designing more powerful and more repeatable association studies.
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167
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Zöller B, García de Frutos P. Genetic aspects of thrombotic disease. Thromb Haemost 2017; 114:883-4. [DOI: 10.1160/th15-10-0774] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 10/05/2015] [Indexed: 11/05/2022]
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168
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Dingel MJ, Ostergren J, Heaney K, Koenig BA, McCormick J. "I don't have to know why it snows, I just have to shovel it!": Addiction Recovery, Genetic Frameworks, and Biological Citizenship. BIOSOCIETIES 2017; 12:568-587. [PMID: 29552089 PMCID: PMC5851475 DOI: 10.1057/s41292-017-0045-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The gene has infiltrated the way citizens perceive themselves and their health. However, there is scant research that explores the ways genetic conceptions infiltrate individuals' understanding of their own health as it relates to a behavioral trait, like addiction. Do people seeking treatment for addiction ground their self-perception in biology in a way that shapes their experiences? We interviewed 63 participants in addiction treatment programs, asking how they make meaning of a genetic understanding of addiction in the context of their recovery, and in dealing with the stigma of addiction. About two-thirds of people in our sample did not find a genetic conception of addiction personally useful to them in treatment, instead believing that the cause was irrelevant to their daily struggle to remain abstinent. One-third of respondents believed that an individualized confirmation of a genetic predisposition to addiction would facilitate their dealing with feelings of shame and accept treatment. The vast majority of our sample believed that a genetic understanding of addiction would reduce the stigma associated with addiction, which demonstrates the perceived power of genetic explanations in U.S. society. Our results indicate that respondents (unevenly) ground their self-perception of themselves as an addicted individual in biology.
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Affiliation(s)
- Molly J Dingel
- University of Minnesota Rochester, 300 University Square, 111 South Broadway, Rochester, Minnesota, 55904, USA, , (507) 258-8206
| | - Jenny Ostergren
- University of Michigan School of Public Health, 1415 Washington Heights, Ann Arbor, Michigan, USA,
| | - Kathleen Heaney
- Hennepin County Medical Center, 701 Park Avenue, Minneapolis, Minnesota, USA,
| | - Barbara A Koenig
- University of California, San Francisco, Institute for Health & Aging, 3333 Calif. St, Laurel Heights, San Francisco CA 94143,
| | - Jennifer McCormick
- Pennsylvania State University, 1743C Humanities, Hershey Medical Center, Hershey, PA 17033
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Choi H, Tabashidze N, Rossner P, Dostal M, Pastorkova A, Kong SW, Gmuender H, Sram RJ. Altered vulnerability to asthma at various levels of ambient Benzo[a]Pyrene by CTLA4, STAT4 and CYP2E1 polymorphisms. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 231:1134-1144. [PMID: 28807506 DOI: 10.1016/j.envpol.2017.07.057] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 07/17/2017] [Accepted: 07/18/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Within fossil- and solid-fuel dependent geographic locations, mechanisms of air pollution-induced asthma remains unknown. In particular, sources of greater genetic susceptibility to airborne carcinogen, namely, benzo[a]pyrene (B[a]P) has never been investigated beyond that of a few well known genes. OBJECTIVES To deepen our understanding on how the genotypic variations within the candidate genes contribute to the variability in the children's susceptibility to ambient B[a]P on doctor-diagnosed asthma. METHODS Clinically confirmed asthmatic versus healthy control children (aged, 7-15) were enrolled from historically polluted and rural background regions in Czech Republic. Contemporaneous ambient B[a]P concentration was obtained from the routine monitoring network. The sputum DNA was genotyped for 95 genes. B[a]P interaction with SNPs was studied by two-stage, semi-agnostic screening of 621 SNPs. RESULTS The median B[a]P within the highly polluted urban center was 8-times higher than that in the background region (7.8 vs. 1.1 ng/m3) during the period of investigation. Within the baseline model, which considered B[a]P exposure-only, the second tertile range was associated with a significantly reduced odds (aOR = 0.28) of asthma (95% CI, 0.16 to 0.50) compared to those at the lowest range. However, the highest range of B[a]P was associated with 3.18-times greater odds of the outcome (95% CI, 1.77 to 5.71). Within the gene-environment interaction models, joint occurrence of a high B[a]P exposure range and having a high-risk genotype at CTLA4 gene (rs11571316) was associated with 9-times greater odds (95% CI, 4.56-18.36) of the asthma diagnosis. Similarly, rs11571319 at CTLA4 and a high B[a]P exposure range was associated with a 8-times greater odds (95% CI, 3.95-14.27) of asthma diagnosis. Furthermore, having TG + GG genotypes on rs1031509 near STAT4 was associated with 5-times (95% CI, 3.03-8.55) greater odds of asthma diagnosis at the highest B[a]P range, compared to the odds at the reference range. Also CYP2E1 AT + TT genotypes (rs2070673) was associated with 5-times (95% CI, 3.1-8.8) greater odds of asthma diagnosis at the highest B[a]P exposure. CONCLUSIONS The children, who jointly experience a high B[a]P exposure (6.3-8.5 ng/m3) as well as susceptible genotypes in CTLA4 (rs11571316 and rs11571319), STAT4 (rs1031509), and CYP2E1 (rs2070673), respectively, are associated with a significantly greater odds of having doctor-diagnosed asthma, compared to those with neither risk factors.
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Affiliation(s)
- Hyunok Choi
- Departments of Environmental Health Sciences, Epidemiology, and Biostatistics University at Albany School of Public Health, One University Place, Room 153, Rensselaer, NY 12144-3456, USA.
| | - Nana Tabashidze
- Department of Genetic Ecotoxicology, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, v.v.i., Vídeňská 1083, 142 20, Prague 4, Czech Republic.
| | - Pavel Rossner
- Department of Genetic Ecotoxicology, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, v.v.i., Vídeňská 1083, 142 20, Prague 4, Czech Republic.
| | - Miroslav Dostal
- Department of Genetic Ecotoxicology, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, v.v.i., Vídeňská 1083, 142 20, Prague 4, Czech Republic.
| | - Anna Pastorkova
- Department of Genetic Ecotoxicology, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, v.v.i., Vídeňská 1083, 142 20, Prague 4, Czech Republic
| | - Sek Won Kong
- Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115, USA.
| | - Hans Gmuender
- Genedata AG, Margarethenstrasse 38, CH-4053, Basel, Switzerland.
| | - Radim J Sram
- Department of Genetic Ecotoxicology, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, v.v.i., Vídeňská 1083, 142 20, Prague 4, Czech Republic.
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170
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Tielbeek JJ, Johansson A, Polderman TJC, Rautiainen MR, Jansen P, Taylor M, Tong X, Lu Q, Burt AS, Tiemeier H, Viding E, Plomin R, Martin NG, Heath AC, Madden PAF, Montgomery G, Beaver KM, Waldman I, Gelernter J, Kranzler HR, Farrer LA, Perry JRB, Munafò M, LoParo D, Paunio T, Tiihonen J, Mous SE, Pappa I, de Leeuw C, Watanabe K, Hammerschlag AR, Salvatore JE, Aliev F, Bigdeli TB, Dick D, Faraone SV, Popma A, Medland SE, Posthuma D. Genome-Wide Association Studies of a Broad Spectrum of Antisocial Behavior. JAMA Psychiatry 2017; 74:1242-1250. [PMID: 28979981 PMCID: PMC6309228 DOI: 10.1001/jamapsychiatry.2017.3069] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Importance Antisocial behavior (ASB) places a large burden on perpetrators, survivors, and society. Twin studies indicate that half of the variation in this trait is genetic. Specific causal genetic variants have, however, not been identified. Objectives To estimate the single-nucleotide polymorphism-based heritability of ASB; to identify novel genetic risk variants, genes, or biological pathways; to test for pleiotropic associations with other psychiatric traits; and to reevaluate the candidate gene era data through the Broad Antisocial Behavior Consortium. Design, Setting, and Participants Genome-wide association data from 5 large population-based cohorts and 3 target samples with genome-wide genotype and ASB data were used for meta-analysis from March 1, 2014, to May 1, 2016. All data sets used quantitative phenotypes, except for the Finnish Crime Study, which applied a case-control design (370 patients and 5850 control individuals). Main Outcome and Measures This study adopted relatively broad inclusion criteria to achieve a quantitative measure of ASB derived from multiple measures, maximizing the sample size over different age ranges. Results The discovery samples comprised 16 400 individuals, whereas the target samples consisted of 9381 individuals (all individuals were of European descent), including child and adult samples (mean age range, 6.7-56.1 years). Three promising loci with sex-discordant associations were found (8535 female individuals, chromosome 1: rs2764450, chromosome 11: rs11215217; 7772 male individuals, chromosome X, rs41456347). Polygenic risk score analyses showed prognostication of antisocial phenotypes in an independent Finnish Crime Study (2536 male individuals and 3684 female individuals) and shared genetic origin with conduct problems in a population-based sample (394 male individuals and 431 female individuals) but not with conduct disorder in a substance-dependent sample (950 male individuals and 1386 female individuals) (R2 = 0.0017 in the most optimal model, P = 0.03). Significant inverse genetic correlation of ASB with educational attainment (r = -0.52, P = .005) was detected. Conclusions and Relevance The Broad Antisocial Behavior Consortium entails the largest collaboration to date on the genetic architecture of ASB, and the first results suggest that ASB may be highly polygenic and has potential heterogeneous genetic effects across sex.
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Affiliation(s)
- Jorim J Tielbeek
- Department of Complex Trait Genetics, Center for Neurogenomics and Cognitive Research, Neuroscience Campus Amsterdam, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
- Department of Child and Adolescent Psychiatry, VU University Medical Center, Amsterdam, the Netherlands
- QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Ada Johansson
- Department of Psychology and Speech-Language Pathology, University of Turku, Turku, Finland
- Department of Pharmacology, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Psychology, Faculty of Arts, Psychology, and Theology, Åbo Akademi University, Turku, Finland
| | - Tinca J C Polderman
- Department of Complex Trait Genetics, Center for Neurogenomics and Cognitive Research, Neuroscience Campus Amsterdam, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Marja-Riitta Rautiainen
- National Institute for Health and Welfare, Helsinki, Finland
- Department of Forensic Psychiatry, Niuvanniemi Hospital, University of Eastern Finland, Kuopio
- Department of Psychiatry, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Philip Jansen
- Department of Complex Trait Genetics, Center for Neurogenomics and Cognitive Research, Neuroscience Campus Amsterdam, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Michelle Taylor
- Medical Research Council (MRC) Integrative Epidemiology Unit, University of Bristol, Bristol, England
| | - Xiaoran Tong
- Department of Epidemiology and Biostatistics, Michigan State University, East Lansing
| | - Qing Lu
- Department of Epidemiology and Biostatistics, Michigan State University, East Lansing
| | - Alexandra S Burt
- Department of Psychology, Michigan State University, East Lansing
| | - Henning Tiemeier
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, the Netherlands
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus Medical Center-Sophia Children's Hospital, Rotterdam, the Netherlands
- Department of Psychiatry, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Essi Viding
- Division of Psychology and Language Sciences, University College London, London, England
| | - Robert Plomin
- Division of Psychology and Language Sciences, University College London, London, England
| | - Nicholas G Martin
- QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Andrew C Heath
- Department of Psychiatry, Washington University School of Medicine, St Louis, Missouri
| | - Pamela A F Madden
- Department of Psychiatry, Washington University School of Medicine, St Louis, Missouri
| | - Grant Montgomery
- QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Kevin M Beaver
- College of Criminology and Criminal Justice, Florida State University, Tallahassee
- Center for Social and Humanities Research, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Irwin Waldman
- Psychology Department, Emory University, Atlanta, Georgia
| | - Joel Gelernter
- Division of Human Genetics, Department of Psychiatry, Yale University School of Medicine, New Haven, Connecticut
- Veterans Affairs (VA) Connecticut Healthcare Center, New Haven
| | - Henry R Kranzler
- Department of Psychiatry, University of Pennsylvania Perelman School of Medicine, Philadelphia
- Corporal Michael J. Crescenz VA Medical Center, Philadelphia, Pennsylvania
| | - Lindsay A Farrer
- Department of Medicine (Biomedical Genetics), Boston University School of Medicine, Boston, Massachusetts
| | - John R B Perry
- MRC Epidemiology Unit, University of Cambridge School of Clinical Medicine, Institute of Metabolic Science, Cambridge, England
| | - Marcus Munafò
- Medical Research Council (MRC) Integrative Epidemiology Unit, University of Bristol, Bristol, England
| | - Devon LoParo
- Psychology Department, Emory University, Atlanta, Georgia
| | - Tiina Paunio
- National Institute for Health and Welfare, Helsinki, Finland
- Department of Forensic Psychiatry, Niuvanniemi Hospital, University of Eastern Finland, Kuopio
- Department of Psychiatry, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Jari Tiihonen
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
- Department of Forensic Psychiatry, Niuvanniemi Hospital, University of Eastern Finland, Kuopio, Finland
| | - Sabine E Mous
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus Medical Center-Sophia Children's Hospital, Rotterdam, the Netherlands
| | - Irene Pappa
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus Medical Center-Sophia Children's Hospital, Rotterdam, the Netherlands
| | - Christiaan de Leeuw
- Department of Complex Trait Genetics, Center for Neurogenomics and Cognitive Research, Neuroscience Campus Amsterdam, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Kyoko Watanabe
- Department of Complex Trait Genetics, Center for Neurogenomics and Cognitive Research, Neuroscience Campus Amsterdam, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Anke R Hammerschlag
- Department of Complex Trait Genetics, Center for Neurogenomics and Cognitive Research, Neuroscience Campus Amsterdam, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Jessica E Salvatore
- Department of Psychology and the Virginia Institute for Psychiatric and Behavioural Genetics, Virginia Commonwealth University, Richmond
| | - Fazil Aliev
- Department of African American Studies, Virginia Commonwealth University, Richmond
- Faculty of Business, Karabuk University, Karabuk, Turkey
| | - Tim B Bigdeli
- Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond
| | - Danielle Dick
- Department of Psychology, African American Studies, and Human & Molecular Genetics, Virginia Commonwealth University, Richmond
| | - Stephen V Faraone
- Department of Psychiatry and Behavioral Sciences, Psychiatric Genetic Epidemiology and Neurobiology Laboratory, SUNY Upstate Medical University, Syracuse, New York
- Department of Neuroscience and Physiology, Psychiatric Genetic Epidemiology and Neurobiology Laboratory, SUNY Upstate Medical University, Syracuse, New York
| | - Arne Popma
- Department of Child and Adolescent Psychiatry, VU University Medical Center, Amsterdam, the Netherlands
| | - Sarah E Medland
- QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Danielle Posthuma
- Department of Complex Trait Genetics, Center for Neurogenomics and Cognitive Research, Neuroscience Campus Amsterdam, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
- Department of Clinical Genetics, Neuroscience Campus Amsterdam, Vrije Universiteit Medical Center, Amsterdam, the Netherlands
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171
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Zaso MJ, Maisto SA, Glatt SJ, Belote JM, Park A. Interaction Between the μ-Opioid Receptor Gene and the Number of Heavy-Drinking Peers on Alcohol Use. Alcohol Clin Exp Res 2017; 41:2041-2050. [PMID: 28992386 PMCID: PMC5711571 DOI: 10.1111/acer.13523] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Accepted: 10/01/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND The presence of heavy-drinking peers may trigger genetic vulnerabilities to alcohol use. Limited correlational findings, albeit mixed as a function of age, suggest that carriers of a μ-opioid receptor (OPRM1) G allele may be more vulnerable than noncarriers to alcohol-promoting perceived peer environments. However, research has not yet examined such genetic susceptibility to actual (rather than perceived) peer environments through an experimental, ad libitum alcohol administration design. This study examined whether OPRM1 modulates the effects of heavy-drinking group size on alcohol consumption and explored potential mediators of such OPRM1-based differences. METHODS Caucasian young adult moderate to heavy drinkers (N = 116; mean age = 22 years [SD = 2.21], 49% female) were randomly assigned to consume alcohol in the presence of none, 1, or 3 heavy-drinking peer confederates. RESULTS Results showed no significant moderating effects of OPRM1 in the relationship between the number (or presence) of heavy-drinking peers and voluntary alcohol consumption (partial η2 = 0.01). This result remained the same after controlling for sex, age, and typical drinking quantity as well as their 2-way interactions with OPRM1 and social drinking condition. In addition, OPRM1 did not moderate the peer influence on any proposed mediating variables, including craving for alcohol and subjective responses to alcohol. CONCLUSIONS Findings suggest no OPRM1-based susceptibility to the number of heavy-drinking peers, adding to the existing mixed findings from correlational studies. Future research on OPRM1-related susceptibility to alcohol-promoting peer environments through meta-analytic synthesis and both experimental and prospective, multiwave designs is needed to resolve these mixed findings.
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Affiliation(s)
- Michelle J. Zaso
- Syracuse University, Department of Psychology, 430 Huntington Hall, Syracuse, NY 13244, USA
| | - Stephen A. Maisto
- Syracuse University, Department of Psychology, 430 Huntington Hall, Syracuse, NY 13244, USA
| | - Stephen J. Glatt
- SUNY Upstate Medical University, 750 East Adams Street, Syracuse, NY 13210, USA
| | - John M. Belote
- Syracuse University, Center for Reproductive Evolution/Department of Biology, 107 College Place, Syracuse, NY 13244, USA
| | - Aesoon Park
- Syracuse University, Department of Psychology, 430 Huntington Hall, Syracuse, NY 13244, USA
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172
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Micheletti SJ, Matala AR, Matala AP, Narum SR. Landscape features along migratory routes influence adaptive genomic variation in anadromous steelhead (Oncorhynchus mykiss). Mol Ecol 2017; 27:128-145. [PMID: 29110354 DOI: 10.1111/mec.14407] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 10/13/2017] [Accepted: 10/16/2017] [Indexed: 01/03/2023]
Abstract
Organisms typically show evidence of adaptation to features within their local environment. However, many species undergo long-distance dispersal or migration across larger geographic regions that consist of highly heterogeneous habitats. Therefore, selection may influence adaptive genetic variation associated with landscape features at residing sites and along migration routes in migratory species. We tested for genomic adaptation to landscape features at natal spawning sites and along migration paths to the ocean of anadromous steelhead trout (Oncorhynchus mykiss) in the Columbia River Basin. Results from multivariate ordination, gene-environment association and outlier analyses using 24,526 single nucleotide polymorphisms (SNPs) provided evidence that adaptive allele frequencies were more commonly associated with landscape features along migration paths than features at natal sites (91.8% vs. 8.2% of adaptive loci, respectively). Among the 45 landscape variables tested, migration distance to the ocean and mean annual precipitation along migration paths were significantly associated with adaptive genetic variation in three distinct genetic groups. Additionally, variables such as minimum migration water temperature and mean migration slope were significant only in inland stocks of steelhead that migrate up to 1,200 km farther than those near the coast, indicating regional differences in migratory selective pressures. This study provides novel approaches for investigating migratory corridors and some of the first evidence that environment along migration paths can lead to substantial divergent selection. Consequently, our approach to understand genetic adaptation to migration conditions can be applied to other migratory species when migration or dispersal paths are generally known.
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Affiliation(s)
- Steven J Micheletti
- Columbia River Inter-Tribal Fish Commission, Hagerman Fish Culture Experiment Station, Hagerman, ID, USA
| | - Amanda R Matala
- Columbia River Inter-Tribal Fish Commission, Hagerman Fish Culture Experiment Station, Hagerman, ID, USA
| | - Andrew P Matala
- Columbia River Inter-Tribal Fish Commission, Hagerman Fish Culture Experiment Station, Hagerman, ID, USA
| | - Shawn R Narum
- Columbia River Inter-Tribal Fish Commission, Hagerman Fish Culture Experiment Station, Hagerman, ID, USA
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173
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Huang J, Liu Y, Vitale S, Penning TM, Whitehead AS, Blair IA, Vachani A, Clapper ML, Muscat JE, Lazarus P, Scheet P, Moore JH, Chen Y. On meta- and mega-analyses for gene-environment interactions. Genet Epidemiol 2017; 41:876-886. [PMID: 29110346 DOI: 10.1002/gepi.22085] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 08/01/2017] [Accepted: 08/09/2017] [Indexed: 01/09/2023]
Abstract
Gene-by-environment (G × E) interactions are important in explaining the missing heritability and understanding the causation of complex diseases, but a single, moderately sized study often has limited statistical power to detect such interactions. With the increasing need for integrating data and reporting results from multiple collaborative studies or sites, debate over choice between mega- versus meta-analysis continues. In principle, data from different sites can be integrated at the individual level into a "mega" data set, which can be fit by a joint "mega-analysis." Alternatively, analyses can be done at each site, and results across sites can be combined through a "meta-analysis" procedure without integrating individual level data across sites. Although mega-analysis has been advocated in several recent initiatives, meta-analysis has the advantages of simplicity and feasibility, and has recently led to several important findings in identifying main genetic effects. In this paper, we conducted empirical and simulation studies, using data from a G × E study of lung cancer, to compare the mega- and meta-analyses in four commonly used G × E analyses under the scenario that the number of studies is small and sample sizes of individual studies are relatively large. We compared the two data integration approaches in the context of fixed effect models and random effects models separately. Our investigations provide valuable insights in understanding the differences between mega- and meta-analyses in practice of combining small number of studies in identifying G × E interactions.
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Affiliation(s)
- Jing Huang
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Yulun Liu
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Steve Vitale
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Trevor M Penning
- Department of Systems Pharmacology and Translational Therapeutics, Center of Excellence in Environmental Toxicology, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Alexander S Whitehead
- Department of Systems Pharmacology and Translational Therapeutics, Center of Excellence in Environmental Toxicology, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Ian A Blair
- Department of Systems Pharmacology and Translational Therapeutics, Center of Excellence in Environmental Toxicology, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Anil Vachani
- Pulmonary, Allergy, and Critical Care Division, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Margie L Clapper
- Cancer Prevention and Control Program, Fox Chase Cancer Center, Philadelphia, Pennsylvania, United States of America
| | - Joshua E Muscat
- Department of Public Health Sciences, Penn State College of Medicine, Hershey, Pennsylvania, United States of America
| | - Philip Lazarus
- Department of Pharmaceutical Sciences, Washington State University, Spokane, Washington, United States of America
| | - Paul Scheet
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Jason H Moore
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Yong Chen
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
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174
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Theodoratou E, Timofeeva M, Li X, Meng X, Ioannidis JPA. Nature, Nurture, and Cancer Risks: Genetic and Nutritional Contributions to Cancer. Annu Rev Nutr 2017; 37:293-320. [PMID: 28826375 DOI: 10.1146/annurev-nutr-071715-051004] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
It is speculated that genetic variants are associated with differential responses to nutrients (known as gene-diet interactions) and that these variations may be linked to different cancer risks. In this review, we critically evaluate the evidence across 314 meta-analyses of observational studies and randomized controlled trials of dietary risk factors and the five most common cancers (breast, lung, prostate, colorectal, and stomach). We also critically evaluate the evidence across 13 meta-analyses of observational studies of gene-diet interactions for the same cancers. Convincing evidence for association was found only for the intake of alcohol and whole grains in relation to colorectal cancer risk. Three nutrient associations had highly suggestive evidence and another 15 associations had suggestive evidence. Among the examined gene-diet interactions, only one had moderately strong evidence.
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Affiliation(s)
- Evropi Theodoratou
- Centre for Global Health Research, Usher Institute of Population Health Sciences and Informatics, The University of Edinburgh, Edinburgh EH8 9AG, United Kingdom.,Colon Cancer Genetics Group, Medical Research Council Human Genetics Unit, Medical Research Council Institute of Genetics & Molecular Medicine, Western General Hospital, The University of Edinburgh, Edinburgh EH4 2XU, United Kingdom
| | - Maria Timofeeva
- Colon Cancer Genetics Group, Medical Research Council Human Genetics Unit, Medical Research Council Institute of Genetics & Molecular Medicine, Western General Hospital, The University of Edinburgh, Edinburgh EH4 2XU, United Kingdom
| | - Xue Li
- Centre for Global Health Research, Usher Institute of Population Health Sciences and Informatics, The University of Edinburgh, Edinburgh EH8 9AG, United Kingdom
| | - Xiangrui Meng
- Centre for Global Health Research, Usher Institute of Population Health Sciences and Informatics, The University of Edinburgh, Edinburgh EH8 9AG, United Kingdom
| | - John P A Ioannidis
- Stanford Prevention Research Center, Departments of Medicine and Health Research and Policy, Stanford University School of Medicine, Stanford, California 94305-5411; .,Department of Statistics, Stanford University School of Humanities and Sciences, Stanford, California 94305-5411
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175
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Ritz BR, Chatterjee N, Garcia-Closas M, Gauderman WJ, Pierce BL, Kraft P, Tanner CM, Mechanic LE, McAllister K. Lessons Learned From Past Gene-Environment Interaction Successes. Am J Epidemiol 2017; 186:778-786. [PMID: 28978190 PMCID: PMC5860326 DOI: 10.1093/aje/kwx230] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 04/01/2017] [Accepted: 04/04/2017] [Indexed: 12/20/2022] Open
Abstract
Genetic and environmental factors are both known to contribute to susceptibility to complex diseases. Therefore, the study of gene-environment interaction (G×E) has been a focus of research for several years. In this article, select examples of G×E from the literature are described to highlight different approaches and underlying principles related to the success of these studies. These examples can be broadly categorized as studies of single metabolism genes, genes in complex metabolism pathways, ranges of exposure levels, functional approaches and model systems, and pharmacogenomics. Some studies illustrated the success of studying exposure metabolism for which candidate genes can be identified. Moreover, some G×E successes depended on the availability of high-quality exposure assessment and longitudinal measures, study populations with a wide range of exposure levels, and the inclusion of ethnically and geographically diverse populations. In several examples, large population sizes were required to detect G×Es. Other examples illustrated the impact of accurately defining scale of the interactions (i.e., additive or multiplicative). Last, model systems and functional approaches provided insights into G×E in several examples. Future studies may benefit from these lessons learned.
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Affiliation(s)
- Beate R. Ritz
- Correspondence to Dr. Beate R. Ritz, Department of Epidemiology, Fielding School of Public Health, University of California Los Angeles, 650 Charles Young Drive South, Los Angeles, CA 90095 (e-mail: )
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176
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McAllister K, Mechanic LE, Amos C, Aschard H, Blair IA, Chatterjee N, Conti D, Gauderman WJ, Hsu L, Hutter CM, Jankowska MM, Kerr J, Kraft P, Montgomery SB, Mukherjee B, Papanicolaou GJ, Patel CJ, Ritchie MD, Ritz BR, Thomas DC, Wei P, Witte JS. Current Challenges and New Opportunities for Gene-Environment Interaction Studies of Complex Diseases. Am J Epidemiol 2017; 186:753-761. [PMID: 28978193 PMCID: PMC5860428 DOI: 10.1093/aje/kwx227] [Citation(s) in RCA: 106] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 03/14/2017] [Accepted: 03/16/2017] [Indexed: 12/25/2022] Open
Abstract
Recently, many new approaches, study designs, and statistical and analytical methods have emerged for studying gene-environment interactions (G×Es) in large-scale studies of human populations. There are opportunities in this field, particularly with respect to the incorporation of -omics and next-generation sequencing data and continual improvement in measures of environmental exposures implicated in complex disease outcomes. In a workshop called "Current Challenges and New Opportunities for Gene-Environment Interaction Studies of Complex Diseases," held October 17-18, 2014, by the National Institute of Environmental Health Sciences and the National Cancer Institute in conjunction with the annual American Society of Human Genetics meeting, participants explored new approaches and tools that have been developed in recent years for G×E discovery. This paper highlights current and critical issues and themes in G×E research that need additional consideration, including the improved data analytical methods, environmental exposure assessment, and incorporation of functional data and annotations.
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Affiliation(s)
| | - Leah E. Mechanic
- Correspondence to Dr. Leah E. Mechanic, Genomic Epidemiology Branch, Epidemiology and Genomics Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, 9609 Medical Center Drive, Room 4E104, MSC 9763, Bethesda, MD 20892 (e-mail: )
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177
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Ritchie MD, Davis JR, Aschard H, Battle A, Conti D, Du M, Eskin E, Fallin MD, Hsu L, Kraft P, Moore JH, Pierce BL, Bien SA, Thomas DC, Wei P, Montgomery SB. Incorporation of Biological Knowledge Into the Study of Gene-Environment Interactions. Am J Epidemiol 2017; 186:771-777. [PMID: 28978191 PMCID: PMC5860556 DOI: 10.1093/aje/kwx229] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 04/07/2017] [Accepted: 04/10/2017] [Indexed: 12/12/2022] Open
Abstract
A growing knowledge base of genetic and environmental information has greatly enabled the study of disease risk factors. However, the computational complexity and statistical burden of testing all variants by all environments has required novel study designs and hypothesis-driven approaches. We discuss how incorporating biological knowledge from model organisms, functional genomics, and integrative approaches can empower the discovery of novel gene-environment interactions and discuss specific methodological considerations with each approach. We consider specific examples where the application of these approaches has uncovered effects of gene-environment interactions relevant to drug response and immunity, and we highlight how such improvements enable a greater understanding of the pathogenesis of disease and the realization of precision medicine.
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Affiliation(s)
- Marylyn D. Ritchie
- Correspondence to Dr. Stephen B. Montgomery, Departments of Genetics and Pathology, Stanford University School of Medicine, Stanford, CA 94305 (e-mail: ); or Dr. Marylyn D. Ritchie, Geisinger Health System, 205 Hood Center for Health Research, Center Street, Danville, PA 17821(e-mail: )
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Stephen B. Montgomery
- Correspondence to Dr. Stephen B. Montgomery, Departments of Genetics and Pathology, Stanford University School of Medicine, Stanford, CA 94305 (e-mail: ); or Dr. Marylyn D. Ritchie, Geisinger Health System, 205 Hood Center for Health Research, Center Street, Danville, PA 17821(e-mail: )
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178
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Kim G, Lai CQ, Arnett DK, Parnell LD, Ordovas JM, Kim Y, Kim J. Detection of gene-environment interactions in a family-based population using SCAD. Stat Med 2017; 36:3547-3559. [PMID: 28707299 DOI: 10.1002/sim.7382] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Revised: 05/19/2017] [Accepted: 06/02/2017] [Indexed: 11/07/2022]
Abstract
Gene-environment interaction (GxE) is emphasized as one potential source of missing genetic variation on disease traits, and the ultimate goal of GxE research is prediction of individual risk and prevention of complex diseases. However, there are various challenges in statistical analysis of GxE. In this paper, we focus on the three methodological challenges: (i) the high dimensions of genes; (ii) the hierarchical structure between interaction effects and their corresponding main effects; and (iii) the correlation among subjects from family-based population studies. In this paper, we propose an algorithm that approaches all three challenges simultaneously. This is the first penalized method focusing on an interaction search based on a linear mixed effect model. For verification, we compare the empirical performance of our new method with other existing methods in simulation study. The results demonstrate the superiority of our method under overall simulation setup. In particular, the outperformance obviously becomes greater as the correlation among subjects increases. In addition, the new method provides a robust estimate for the correlation among subjects. We also apply the new method on Genetics of Lipid Lowering Drugs and Diet Network study data. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Gwangsu Kim
- Data Science for Knowledge Creation Research Center, Seoul National University, Seoul, Korea
| | - Chao-Qiang Lai
- Jean Mayer US Department of Agriculture Human Nutrition Research Center on Aging, Tufts University, Boston, MA, U.S.A
| | - Donna K Arnett
- University of Kentucky College of Public Health, Lexington, KY, U.S.A
| | - Laurence D Parnell
- Jean Mayer US Department of Agriculture Human Nutrition Research Center on Aging, Tufts University, Boston, MA, U.S.A
| | - Jose M Ordovas
- Jean Mayer US Department of Agriculture Human Nutrition Research Center on Aging, Tufts University, Boston, MA, U.S.A.,Department of Epidemiology and Population Genetics, Centro Nacional Investigacion Cardiovasculares (CNIC) Madrid, Madrid, Spain
| | - Yongdai Kim
- Department of Statistics, Seoul National University, Seoul, Korea
| | - Joungyoun Kim
- Department of Information Statistics, Chungbuk National University, Cheongju, Chungbuk, Korea
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179
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Aguirre-Portolés C, Fernández LP, Ramírez de Molina A. Precision Nutrition for Targeting Lipid Metabolism in Colorectal Cancer. Nutrients 2017; 9:nu9101076. [PMID: 28956850 PMCID: PMC5691693 DOI: 10.3390/nu9101076] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 09/20/2017] [Accepted: 09/25/2017] [Indexed: 12/16/2022] Open
Abstract
Cancer is a multistage and multifactorial condition with genetic and environmental factors modulating tumorogenesis and disease progression. Nevertheless, cancer is preventable, as one third of cancer deaths could be avoided by modifying key risk factors. Nutrients can directly affect fundamental cellular processes and are considered among the most important risk factors in colorectal cancer (CRC). Red and processed meat, poultry consumption, fiber, and folate are the best-known diet components that interact with colorectal cancer susceptibility. In addition, the direct association of an unhealthy diet with obesity and dysbiosis opens new routes in the understanding of how daily diet nutrients could influence cancer prognosis. In the “omics” era, traditional nutrition has been naturally evolved to precision nutrition where technical developments have contributed to a more accurate discipline. In this sense, genomic and transcriptomic studies have been extensively used in precision nutrition approaches. However, the relation between CRC carcinogenesis and nutrition factors is more complex than originally expected. Together with classical diet-nutrition-related genes, nowadays, lipid-metabolism-related genes have acquired relevant interest in precision nutrition studies. Lipids regulate very diverse cellular processes from ATP synthesis and the activation of essential cell-signaling pathways to membrane organization and plasticity. Therefore, a wide range of tumorogenic steps can be influenced by lipid metabolism, both in primary tumours and distal metastasis. The extent to which genetic variants, together with the intake of specific dietary components, affect the risk of CRC is currently under investigation, and new therapeutic or preventive applications must be explored in CRC models. In this review, we will go in depth into the study of co-occurring events, which orchestrate CRC tumorogenesis and are essential for the evolution of precision nutrition paradigms. Likewise, we will discuss the application of precision nutrition approaches to target lipid metabolism in CRC.
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Affiliation(s)
- Cristina Aguirre-Portolés
- Molecular Oncology and Nutritional Genomics of Cancer Group, IMDEA Food Institute, CEI UAM + CSIC, Carretera de Cantoblanco 8, E-28049 Madrid, Spain.
| | - Lara P Fernández
- Molecular Oncology and Nutritional Genomics of Cancer Group, IMDEA Food Institute, CEI UAM + CSIC, Carretera de Cantoblanco 8, E-28049 Madrid, Spain.
| | - Ana Ramírez de Molina
- Molecular Oncology and Nutritional Genomics of Cancer Group, IMDEA Food Institute, CEI UAM + CSIC, Carretera de Cantoblanco 8, E-28049 Madrid, Spain.
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180
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Sharafeldin N, Slattery ML, Liu Q, Franco-Villalobos C, Caan BJ, Potter JD, Yasui Y. Multiple Gene-Environment Interactions on the Angiogenesis Gene-Pathway Impact Rectal Cancer Risk and Survival. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017; 14:ijerph14101146. [PMID: 28956832 PMCID: PMC5664647 DOI: 10.3390/ijerph14101146] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Revised: 09/06/2017] [Accepted: 09/23/2017] [Indexed: 12/25/2022]
Abstract
Characterization of gene-environment interactions (GEIs) in cancer is limited. We aimed at identifying GEIs in rectal cancer focusing on a relevant biologic process involving the angiogenesis pathway and relevant environmental exposures: cigarette smoking, alcohol consumption, and animal protein intake. We analyzed data from 747 rectal cancer cases and 956 controls from the Diet, Activity and Lifestyle as a Risk Factor for Rectal Cancer study. We applied a 3-step analysis approach: first, we searched for interactions among single nucleotide polymorphisms on the pathway genes; second, we searched for interactions among the genes, both steps using Logic regression; third, we examined the GEIs significant at the 5% level using logistic regression for cancer risk and Cox proportional hazards models for survival. Permutation-based test was used for multiple testing adjustment. We identified 8 significant GEIs associated with risk among 6 genes adjusting for multiple testing: TNF (OR = 1.85, 95% CI: 1.10, 3.11), TLR4 (OR = 2.34, 95% CI: 1.38, 3.98), and EGR2 (OR = 2.23, 95% CI: 1.04, 4.78) with smoking; IGF1R (OR = 1.69, 95% CI: 1.04, 2.72), TLR4 (OR = 2.10, 95% CI: 1.22, 3.60) and EGR2 (OR = 2.12, 95% CI: 1.01, 4.46) with alcohol; and PDGFB (OR = 1.75, 95% CI: 1.04, 2.92) and MMP1 (OR = 2.44, 95% CI: 1.24, 4.81) with protein. Five GEIs were associated with survival at the 5% significance level but not after multiple testing adjustment: CXCR1 (HR = 2.06, 95% CI: 1.13, 3.75) with smoking; and KDR (HR = 4.36, 95% CI: 1.62, 11.73), TLR2 (HR = 9.06, 95% CI: 1.14, 72.11), EGR2 (HR = 2.45, 95% CI: 1.42, 4.22), and EGFR (HR = 6.33, 95% CI: 1.95, 20.54) with protein. GEIs between angiogenesis genes and smoking, alcohol, and animal protein impact rectal cancer risk. Our results support the importance of considering the biologic hypothesis to characterize GEIs associated with cancer outcomes.
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Affiliation(s)
- Noha Sharafeldin
- School of Public Health, University of Alberta, Edmonton, AB T6G 2R3, Canada.
- Department of Medicine, School of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA.
| | - Martha L Slattery
- Department of Internal Medicine, University of Utah Health Sciences Center, Salt Lake City, UT 84132, USA.
| | - Qi Liu
- School of Public Health, University of Alberta, Edmonton, AB T6G 2R3, Canada.
| | | | - Bette J Caan
- Division of Research, Kaiser Permanente Medical Care Program, Oakland, CA 94612, USA.
| | - John D Potter
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA.
- Department of Epidemiology, School of Public Health, University of Washington, Seattle, WA 98195, USA.
- Centre for Public Health Research, Massey University, P.O. Box 756, Wellington 6140, New Zealand.
| | - Yutaka Yasui
- School of Public Health, University of Alberta, Edmonton, AB T6G 2R3, Canada.
- Department of Epidemiology & Cancer Control, St. Jude Children's Research Hospital, Memphis, TN 38105, USA.
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181
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Suppli NP, Bukh JD, Moffitt TE, Caspi A, Johansen C, Tjønneland A, Kessing LV, Dalton SO. Genetic variants in 5-HTTLPR, BDNF, HTR1A, COMT, and FKBP5 and risk for treated depression after cancer diagnosis. Depress Anxiety 2017; 34:845-855. [PMID: 28590587 PMCID: PMC5933050 DOI: 10.1002/da.22660] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 05/02/2017] [Accepted: 05/09/2017] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND The role of gene-environment interactions in the pathogenesis of depression is unclear. Previous studies addressed vulnerability for depression after childhood adversity and stressful life events among carriers of numerous specific genetic variants; however, the importance of individual genetic variants, the environmental exposures with which they interact, and the magnitude of the risk conveyed by these interactions remain elusive. METHODS We included 7,320 people with a first primary cancer identified in the prospective Diet, Cancer and Health study in an exposed-only cohort study. The mean age of the individuals was 68 years (5th, 95th percentiles: 58, 78) at cancer diagnosis. Using Cox regression models and cumulative incidence plots, we analyzed the associations between genetic variants in 5-HTTLPR, BDNF, HTR1A, COMT, and FKBP5 and use of antidepressants as well as hospital contact for depression after diagnosis of cancer. RESULTS Overall, we observed no statistically significant associations, with nonsignificant hazard ratio estimates for use of antidepressants of 0.95-1.07. CONCLUSIONS This study of elderly people indicates that it is unlikely that the investigated genetic variants are clinically relevantly associated with depression after diagnosis of cancer. The mechanisms for gene-environment interactions in younger individuals are probably different, and we advise caution in extrapolating our results to early life stress. However, conclusion from the present study might be generalizable to elderly persons exposed to other stressful life events.
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Affiliation(s)
- Nis P. Suppli
- Survivorship, Danish Cancer Society Research Center, Copenhagen, Denmark,Psychiatric Center Copenhagen, University of Copenhagen, Copenhagen, Denmark
| | - Jens D. Bukh
- Psychiatric Center Copenhagen, University of Copenhagen, Copenhagen, Denmark
| | - Terrie E. Moffitt
- Department of Psychology and Neuroscience, Duke University, NC, USA,Department of Psychiatry and Behavioral Sciences, Duke University, NC, USA,Center for Genomic and Computational Biology, Duke University, NC, USA,Social, Genetic, and Developmental Psychiatry Research Center, Institute of Psychiatry, King’s College London, London, UK
| | - Avshalom Caspi
- Department of Psychology and Neuroscience, Duke University, NC, USA,Department of Psychiatry and Behavioral Sciences, Duke University, NC, USA,Center for Genomic and Computational Biology, Duke University, NC, USA,Social, Genetic, and Developmental Psychiatry Research Center, Institute of Psychiatry, King’s College London, London, UK
| | - Christoffer Johansen
- Survivorship, Danish Cancer Society Research Center, Copenhagen, Denmark,Department of Oncology, Finsencentret, Rigshospitalet, Copenhagen, Denmark
| | - Anne Tjønneland
- Diet, Genes and Environment, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Lars V. Kessing
- Psychiatric Center Copenhagen, University of Copenhagen, Copenhagen, Denmark
| | - Susanne O. Dalton
- Survivorship, Danish Cancer Society Research Center, Copenhagen, Denmark
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182
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Patel CJ, Kerr J, Thomas DC, Mukherjee B, Ritz B, Chatterjee N, Jankowska M, Madan J, Karagas MR, McAllister KA, Mechanic LE, Fallin MD, Ladd-Acosta C, Blair IA, Teitelbaum SL, Amos CI. Opportunities and Challenges for Environmental Exposure Assessment in Population-Based Studies. Cancer Epidemiol Biomarkers Prev 2017; 26:1370-1380. [PMID: 28710076 PMCID: PMC5581729 DOI: 10.1158/1055-9965.epi-17-0459] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 06/14/2017] [Accepted: 06/22/2017] [Indexed: 12/15/2022] Open
Abstract
A growing number and increasing diversity of factors are available for epidemiological studies. These measures provide new avenues for discovery and prevention, yet they also raise many challenges for adoption in epidemiological investigations. Here, we evaluate 1) designs to investigate diseases that consider heterogeneous and multidimensional indicators of exposure and behavior, 2) the implementation of numerous methods to capture indicators of exposure, and 3) the analytical methods required for discovery and validation. We find that case-control studies have provided insights into genetic susceptibility but are insufficient for characterizing complex effects of environmental factors on disease development. Prospective and two-phase designs are required but must balance extended data collection with follow-up of study participants. We discuss innovations in assessments including the microbiome; mass spectrometry and metabolomics; behavioral assessment; dietary, physical activity, and occupational exposure assessment; air pollution monitoring; and global positioning and individual sensors. We claim the the availability of extensive correlated data raises new challenges in disentangling specific exposures that influence cancer risk from among extensive and often correlated exposures. In conclusion, new high-dimensional exposure assessments offer many new opportunities for environmental assessment in cancer development. Cancer Epidemiol Biomarkers Prev; 26(9); 1370-80. ©2017 AACR.
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Affiliation(s)
- Chirag J Patel
- Department of Biomedical Informatics, Harvard Medical School, Boston, Massachusetts.
| | - Jacqueline Kerr
- Department of Family Medicine and Public Health, University of California San Diego, La Jolla, California
| | - Duncan C Thomas
- Department of Preventive Medicine, University of Southern California, Los Angeles, California
| | - Bhramar Mukherjee
- Department of Biostatistics, University of Michigan School of Public Health, Ann Arbor, Michigan
| | - Beate Ritz
- Department of Epidemiology, Fielding School of Public Health, University of California Los Angeles, Los Angeles, California
| | - Nilanjan Chatterjee
- Department of Biostatistics and Department of Oncology, Johns Hopkins University, Baltimore, Maryland
| | - Marta Jankowska
- Department of Family Medicine and Public Health, University of California San Diego, La Jolla, California
| | - Juliette Madan
- Division of Neonatology, Department of Pediatrics, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | - Margaret R Karagas
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, Lebanon, New Hampshire
| | - Kimberly A McAllister
- Susceptibility and Population Health Branch, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, North Carolina
| | - Leah E Mechanic
- Epidemiology and Genomics Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, NIH, Bethesda, Maryland
| | - M Daniele Fallin
- Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland
| | | | - Ian A Blair
- Center of Excellence in Environmental Toxicology and Penn SRP Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Susan L Teitelbaum
- Department of Preventive Medicine, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Christopher I Amos
- Department of Biomedical Data Science, Geisel School of Medicine at Dartmouth College, Lebanon, New Hampshire.
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183
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Waken RJ, de Las Fuentes L, Rao DC. A Review of the Genetics of Hypertension with a Focus on Gene-Environment Interactions. Curr Hypertens Rep 2017; 19:23. [PMID: 28283927 DOI: 10.1007/s11906-017-0718-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
PURPOSE OF REVIEW Here, we discuss the interpretation and modeling of gene-environment interactions in hypertension-related phenotypes, with a focus on the necessary assumptions and possible challenges. RECENT FINDINGS Recently, small cohort studies have discovered several novel genetic variants associated with hypertension-related phenotypes through modeling gene-environment interactions. Several consortia-based meta-analytic efforts have uncovered many novel genetic variants in hypertension without modeling interaction terms, giving promise to future meta-analytic efforts that incorporate gene-environment interactions. Heritability studies and genome-wide association studies have established that hypertension, a prevalent cardiovascular disease, has a genetic component that may be modulated by the environment (such as lifestyle factors). This review includes a discussion of known genetic associations for hypertension/blood pressure, including those resulting from the incorporation of gene-environmental interaction modeling.
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Affiliation(s)
- R J Waken
- Division of Biostatistics, Washington University in St. Louis, School of Medicine, 660 S. Euclid Ave, Campus Box 8067, St. Louis, MO, 63110, USA.
| | - Lisa de Las Fuentes
- Division of Biostatistics, Washington University in St. Louis, School of Medicine, 660 S. Euclid Ave, Campus Box 8067, St. Louis, MO, 63110, USA.,Division of Cardiology, Department of Medicine, 660 S. Euclid Ave, Campus Box 8086, St. Louis, MO, 63110, USA
| | - D C Rao
- Division of Biostatistics, Washington University in St. Louis, School of Medicine, 660 S. Euclid Ave, Campus Box 8067, St. Louis, MO, 63110, USA
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184
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Gienapp P, Laine VN, Mateman AC, van Oers K, Visser ME. Environment-Dependent Genotype-Phenotype Associations in Avian Breeding Time. Front Genet 2017; 8:102. [PMID: 28824697 PMCID: PMC5543038 DOI: 10.3389/fgene.2017.00102] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 07/24/2017] [Indexed: 01/16/2023] Open
Abstract
Understanding how genes shape phenotypes is essential to assess the evolutionary potential of a trait. Identifying the genes underlying quantitative behavioral or life-history traits has, however, proven to be a major challenge. The majority of these traits are phenotypically plastic and different parts of the genome can be involved in shaping the trait under different environmental conditions. These variable genotype-phenotype associations could be one explanation for the limited success of genome-wide association studies in such traits. We here use avian seasonal timing of breeding, a trait that is highly plastic in response to spring temperature, to explore effects of such genotype-by-environment interactions in genome-wide association studies. We genotyped 2045 great tit females for 384081 single nucleotide polymorphisms (SNPs) and recorded their egg-laying dates in the wild. When testing for associations between SNPs and egg-laying dates, no SNP reached genome-wide significance. We then explored whether SNP effects were modified by annual spring temperature by formally testing for an interaction between SNP effect and temperature. The models including the SNP∗temperature interaction performed consistently better although no SNP reached genome-wide significance. Our results suggest that the effects of genes shaping seasonal timing depended on annual spring temperature. Such environment-dependent effects are expected for any phenotypically plastic trait. Taking these effects into account will thus improve the success of detecting genes involved in phenotypically plastic traits, thereby leading to a better understanding of their evolutionary potential.
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Affiliation(s)
- Phillip Gienapp
- Department of Animal Ecology, Netherlands Institute of Ecology (NIOO-KNAW)Wageningen, Netherlands
| | - Veronika N Laine
- Department of Animal Ecology, Netherlands Institute of Ecology (NIOO-KNAW)Wageningen, Netherlands
| | - A C Mateman
- Department of Animal Ecology, Netherlands Institute of Ecology (NIOO-KNAW)Wageningen, Netherlands
| | - Kees van Oers
- Department of Animal Ecology, Netherlands Institute of Ecology (NIOO-KNAW)Wageningen, Netherlands
| | - Marcel E Visser
- Department of Animal Ecology, Netherlands Institute of Ecology (NIOO-KNAW)Wageningen, Netherlands
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185
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Lee SH, Weerasinghe WMSP, van der Werf JHJ. Genotype-environment interaction on human cognitive function conditioned on the status of breastfeeding and maternal smoking around birth. Sci Rep 2017; 7:6087. [PMID: 28729621 PMCID: PMC5519601 DOI: 10.1038/s41598-017-06214-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 06/08/2017] [Indexed: 11/23/2022] Open
Abstract
We estimated genotype by environment interaction (G × E) on later cognitive performance and educational attainment across four unique environments, i.e. 1) breastfed without maternal smoking, 2) breastfed with maternal smoking, 3) non-breastfed without maternal smoking and 4) non-breastfed with maternal smoking, using a novel design and statistical approach that was facilitated by the availability of datasets with the genome-wide single nucleotide polymorphisms (SNPs). There was significant G × E for both fluid intelligence (p-value = 1.0E-03) and educational attainment (p-value = 8.3E-05) when comparing genetic effects in the group of individuals who were breastfed without maternal smoking with those not breastfed without maternal smoking. There was also significant G × E for fluid intelligence (p-value = 3.9E-05) when comparing the group of individuals who were breastfed with maternal smoking with those not breastfed without maternal smoking. Genome-wide significant SNPs were different between different environmental groups. Genomic prediction accuracies were significantly higher when using the target and discovery sample from the same environmental group than when using those from the different environmental groups. This finding demonstrates G × E has important implications for future studies on the genetic architecture, genome-wide association studies and genomic predictions.
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Affiliation(s)
- S Hong Lee
- School of Environmental and Rural Science, University of New England, Armidale, New South Wales 2351, Australia.
| | - W M Shalanee P Weerasinghe
- School of Environmental and Rural Science, University of New England, Armidale, New South Wales 2351, Australia
| | - Julius H J van der Werf
- School of Environmental and Rural Science, University of New England, Armidale, New South Wales 2351, Australia
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186
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Genotypic variability based association identifies novel non-additive loci DHCR7 and IRF4 in sero-negative rheumatoid arthritis. Sci Rep 2017; 7:5261. [PMID: 28706201 PMCID: PMC5509675 DOI: 10.1038/s41598-017-05447-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 05/30/2017] [Indexed: 12/21/2022] Open
Abstract
Sero-negative rheumatoid arthritis (RA) is a highly heterogeneous disorder with only a few additive loci identified to date. We report a genotypic variability-based genome-wide association study (vGWAS) of six cohorts of sero-negative RA recruited in Europe and the US that were genotyped with the Immunochip. A two-stage approach was used: (1) a mixed model to partition dichotomous phenotypes into an additive component and non-additive residuals on the liability scale and (2) the Levene’s test to assess equality of the residual variances across genotype groups. The vGWAS identified rs2852853 (P = 1.3e-08, DHCR7) and rs62389423 (P = 1.8e-05, near IRF4) in addition to two previously identified loci (HLA-DQB1 and ANKRD55), which were all statistically validated using cross validation. DHCR7 encodes an enzyme important in cutaneous synthesis of vitamin D and DHCR7 mutations are believed to be important for early humans to adapt to Northern Europe where residents have reduced ultraviolet-B exposure and tend to have light skin color. IRF4 is a key locus responsible for skin color, with a vitamin D receptor-binding interval. These vGWAS results together suggest that vitamin D deficiency is potentially causal of sero-negative RA and provide new insights into the pathogenesis of the disorder.
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187
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Li SX, Imamura F, Ye Z, Schulze MB, Zheng J, Ardanaz E, Arriola L, Boeing H, Dow C, Fagherazzi G, Franks PW, Agudo A, Grioni S, Kaaks R, Katzke VA, Key TJ, Khaw KT, Mancini FR, Navarro C, Nilsson PM, Onland-Moret NC, Overvad K, Palli D, Panico S, Quirós JR, Rolandsson O, Sacerdote C, Sánchez MJ, Slimani N, Sluijs I, Spijkerman AM, Tjonneland A, Tumino R, Sharp SJ, Riboli E, Langenberg C, Scott RA, Forouhi NG, Wareham NJ. Interaction between genes and macronutrient intake on the risk of developing type 2 diabetes: systematic review and findings from European Prospective Investigation into Cancer (EPIC)-InterAct. Am J Clin Nutr 2017; 106:263-275. [PMID: 28592605 PMCID: PMC5486199 DOI: 10.3945/ajcn.116.150094] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Accepted: 04/26/2017] [Indexed: 12/12/2022] Open
Abstract
Background: Gene-diet interactions have been reported to contribute to the development of type 2 diabetes (T2D). However, to our knowledge, few examples have been consistently replicated to date.Objective: We aimed to identify existing evidence for gene-macronutrient interactions and T2D and to examine the reported interactions in a large-scale study.Design: We systematically reviewed studies reporting gene-macronutrient interactions and T2D. We searched the MEDLINE, Human Genome Epidemiology Network, and WHO International Clinical Trials Registry Platform electronic databases to identify studies published up to October 2015. Eligibility criteria included assessment of macronutrient quantity (e.g., total carbohydrate) or indicators of quality (e.g., dietary fiber) by use of self-report or objective biomarkers of intake. Interactions identified in the review were subsequently examined in the EPIC (European Prospective Investigation into Cancer)-InterAct case-cohort study (n = 21,148, with 9403 T2D cases; 8 European countries). Prentice-weighted Cox regression was used to estimate country-specific HRs, 95% CIs, and P-interaction values, which were then pooled by random-effects meta-analysis. A primary model was fitted by using the same covariates as reported in the published studies, and a second model adjusted for additional covariates and estimated the effects of isocaloric macronutrient substitution.Results: Thirteen observational studies met the eligibility criteria (n < 1700 cases). Eight unique interactions were reported to be significant between macronutrients [carbohydrate, fat, saturated fat, dietary fiber, and glycemic load derived from self-report of dietary intake and circulating n-3 (ω-3) polyunsaturated fatty acids] and genetic variants in or near transcription factor 7-like 2 (TCF7L2), gastric inhibitory polypeptide receptor (GIPR), caveolin 2 (CAV2), and peptidase D (PEPD) (P-interaction < 0.05). We found no evidence of interaction when we tried to replicate previously reported interactions. In addition, no interactions were detected in models with additional covariates.Conclusions: Eight gene-macronutrient interactions were identified for the risk of T2D from the literature. These interactions were not replicated in the EPIC-InterAct study, which mirrored the analyses undertaken in the original reports. Our findings highlight the importance of independent replication of reported interactions.
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Affiliation(s)
- Sherly X Li
- Medical Research Council (MRC) Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom
| | - Fumiaki Imamura
- Medical Research Council (MRC) Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom
| | - Zheng Ye
- Medical Research Council (MRC) Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom
| | - Matthias B Schulze
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
- German Center for Diabetes Research (DZD), Düsseldorf, Germany
| | - Jusheng Zheng
- Medical Research Council (MRC) Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom
| | - Eva Ardanaz
- Navarre Public Health Institute (ISPN), Pamplona, Spain
- Center for Biomedical Research in Network Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Larraitz Arriola
- Center for Biomedical Research in Network Epidemiology and Public Health (CIBERESP), Madrid, Spain
- Public Health Division of Gipuzkoa, San Sebastian, Spain
- Bio-Donostia Institute, Basque Government, San Sebastian, Spain
| | - Heiner Boeing
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
| | - Courtney Dow
- French National Institute of Health and Medical Research (INSERM) U1018, Institut Gustave Roussy, Center for Research in Epidemiology and Population Health (CESP), Villejuif, France
- University Paris-Saclay, University Paris-Sud, Villejuif, France
| | - Guy Fagherazzi
- French National Institute of Health and Medical Research (INSERM) U1018, Institut Gustave Roussy, Center for Research in Epidemiology and Population Health (CESP), Villejuif, France
- University Paris-Saclay, University Paris-Sud, Villejuif, France
| | - Paul W Franks
- Lund University, Malmö, Sweden
- Umeå University, Umeå, Sweden
| | - Antonio Agudo
- Catalan Institute of Oncology (ICO), Barcelona, Spain
| | - Sara Grioni
- Epidemiology and Prevention Unit, Milan, Italy
| | - Rudolf Kaaks
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Verena A Katzke
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | | | - Kay Tee Khaw
- Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
| | - Francesca R Mancini
- French National Institute of Health and Medical Research (INSERM) U1018, Institut Gustave Roussy, Center for Research in Epidemiology and Population Health (CESP), Villejuif, France
- University Paris-Saclay, University Paris-Sud, Villejuif, France
| | - Carmen Navarro
- Center for Biomedical Research in Network Epidemiology and Public Health (CIBERESP), Madrid, Spain
- Department of Epidemiology, Murcia Regional Health Council, Biomedical Research Institute of Murcia (IMIB)-Arrixaca, Murcia, Spain
- Unit of Preventive Medicine and Public Health, School of Medicine, University of Murcia, Murcia, Spain
| | | | | | - Kim Overvad
- Section for Epidemiology, Department of Public Health, Aarhus University, Aarhus, Denmark
- Aalborg University Hospital, Aalborg, Denmark
| | - Domenico Palli
- Cancer Research and Prevention Institute (ISPO), Florence, Italy
| | - Salvatore Panico
- Department of Clinical Medicine and Surgery, Federico II University, Naples, Italy
| | | | | | - Carlotta Sacerdote
- Unit of Cancer Epidemiology, City of Health and Science Hospital, University of Turin, Torino, Italy
- Center for Cancer Prevention (CPO), Torino, Italy
- Human Genetics Foundation (HuGeF), Torino, Italy
| | - María-José Sánchez
- Center for Biomedical Research in Network Epidemiology and Public Health (CIBERESP), Madrid, Spain
- Andalusian School of Public Health, Granada, Spain
- Biosanitary Research Institute of Granada (Granada.ibs), Granada, Spain
| | - Nadia Slimani
- International Agency for Research on Cancer, Lyon, France
| | - Ivonne Sluijs
- University Medical Center Utrecht, Utrecht, Netherlands
| | | | | | - Rosario Tumino
- Provincial Healthcare Company (ASP) Ragusa, Vittoria, Italy; and
| | - Stephen J Sharp
- Medical Research Council (MRC) Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom
| | - Elio Riboli
- School of Public Health, Imperial College London, London, United Kingdom
| | - Claudia Langenberg
- Medical Research Council (MRC) Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom
| | - Robert A Scott
- Medical Research Council (MRC) Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom
| | - Nita G Forouhi
- Medical Research Council (MRC) Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom;
| | - Nicholas J Wareham
- Medical Research Council (MRC) Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom
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188
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Talati A, Odgerel Z, Wickramaratne PJ, Norcini-Pala A, Skipper JL, Gingrich JA, Weissman MM. Associations between serotonin transporter and behavioral traits and diagnoses related to anxiety. Psychiatry Res 2017; 253:211-219. [PMID: 28391138 PMCID: PMC5472225 DOI: 10.1016/j.psychres.2017.03.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Revised: 03/15/2017] [Accepted: 03/20/2017] [Indexed: 10/19/2022]
Abstract
The role of the serotonin transporter promoter-linked polymorphism (5-HTTLPR) in psychiatric disease remains unclear. Behavioral traits could serve as alternative outcomes that are stable, precede psychopathology, and capture more sub-clinical variation. We test associations between 5-HTTLPR and (1) behavioral traits and (2) clinical diagnoses of anxiety and depression. Second and third generation participants (N=203, 34.2±13.8 years, 54% female) at high- or low- familial risk for depression (where risk was defined by the presence of major depression in the 1st generation) were assessed longitudinally using the Schedule for Affective Disorders and Schizophrenia-lifetime interview, Barratt Impulsiveness Scale-11, Buss-Perry Aggression Questionnaire, and the NEO-Five Factor Inventory. High (but not low)-risk offspring with two risk (short, s) alleles had higher impulsivity (+13%), hostility (+31%) and neuroticism (+23%). SS was associated higher rates of panic (OR=7.05 [2.44, 20.38], p=0.0003) and phobic (OR=2.68[1.04, 6.93], p=0.04), but not other disorders. Impulsivity accounted for 16% of associations between 5-HTTLPR and panic, and 52% of association between 5-HTTLPR and phobias. We show that 5-HTTLPR predicts higher impulsivity, hostility, and neuroticism, and that impulsivity could serve as a useful independent outcome or intermediary phenotype in genetic studies of anxiety.
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Affiliation(s)
- Ardesheer Talati
- Department of Psychiatry, Columbia University Medical Center, New York, NY, USA; Division of Epidemiology, New York State Psychiatric Institute, New York, NY, USA; Sackler Institute for Developmental Psychobiology, Columbia University, New York, NY, USA.
| | - Zagaa Odgerel
- Division of Epidemiology, New York State Psychiatric Institute, New York, NY, USA.
| | - Priya J. Wickramaratne
- Department of Psychiatry, Columbia University Medical Center, New York, NY,Division of Epidemiology, New York State Psychiatric Institute, New York, NY,Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, NY
| | - Andrea Norcini-Pala
- Department of Psychiatry, Columbia University Medical Center, New York, NY, USA.
| | - Jamie L. Skipper
- Division of Epidemiology, New York State Psychiatric Institute, New York, NY
| | - Jay A. Gingrich
- Department of Psychiatry, Columbia University Medical Center, New York, NY,Division of Epidemiology, New York State Psychiatric Institute, New York, NY,Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY
| | - Myrna M. Weissman
- Department of Psychiatry, Columbia University Medical Center, New York, NY,Division of Epidemiology, New York State Psychiatric Institute, New York, NY,Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY,Sackler Institute for Developmental Psychobiology, Columbia University, New York, NY
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189
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Abstract
Pharmacogenomics (PGx), a substantial component of "personalized medicine", seeks to understand each individual's genetic composition to optimize drug therapy -- maximizing beneficial drug response, while minimizing adverse drug reactions (ADRs). Drug responses are highly variable because innumerable factors contribute to ultimate phenotypic outcomes. Recent genome-wide PGx studies have provided some insight into genetic basis of variability in drug response. These can be grouped into three categories. [a] Monogenic (Mendelian) traits include early examples mostly of inherited disorders, and some severe (idiosyncratic) ADRs typically influenced by single rare coding variants. [b] Predominantly oligogenic traits represent variation largely influenced by a small number of major pharmacokinetic or pharmacodynamic genes. [c] Complex PGx traits resemble most multifactorial quantitative traits -- influenced by numerous small-effect variants, together with epigenetic effects and environmental factors. Prediction of monogenic drug responses is relatively simple, involving detection of underlying mutations; due to rarity of these events and incomplete penetrance, however, prospective tests based on genotype will have high false-positive rates, plus pharmacoeconomics will require justification. Prediction of predominantly oligogenic traits is slowly improving. Although a substantial fraction of variation can be explained by limited numbers of large-effect genetic variants, uncertainty in successful predictions and overall cost-benefit ratios will make such tests elusive for everyday clinical use. Prediction of complex PGx traits is almost impossible in the foreseeable future. Genome-wide association studies of large cohorts will continue to discover relevant genetic variants; however, these small-effect variants, combined, explain only a small fraction of phenotypic variance -- thus having limited predictive power and clinical utility.
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Affiliation(s)
- Ge Zhang
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229-3039, United States.
| | - Daniel W Nebert
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229-3039, United States; Department of Environmental Health and Center for Environmental Genetics, University of Cincinnati School of Medicine, Cincinnati, OH 45267-0056, United States.
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190
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Wu M, Zang Y, Zhang S, Huang J, Ma S. Accommodating missingness in environmental measurements in gene-environment interaction analysis. Genet Epidemiol 2017; 41:523-554. [PMID: 28657194 DOI: 10.1002/gepi.22055] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 02/26/2017] [Accepted: 04/10/2017] [Indexed: 11/05/2022]
Abstract
For the prognosis of complex diseases, beyond the main effects of genetic (G) and environmental (E) factors, gene-environment (G-E) interactions also play an important role. Many approaches have been developed for detecting important G-E interactions, most of which assume that measurements are complete. In practical data analysis, missingness in E measurements is not uncommon, and failing to properly accommodate such missingness leads to biased estimation and false marker identification. In this study, we conduct G-E interaction analysis with prognosis data under an accelerated failure time (AFT) model. To accommodate missingness in E measurements, we adopt a nonparametric kernel-based data augmentation approach. With a well-designed weighting scheme, a nice "byproduct" is that the proposed approach enjoys a certain robustness property. A penalization approach, which respects the "main effects, interactions" hierarchy, is adopted for selection (of important interactions and main effects) and regularized estimation. The proposed approach has sound interpretations and a solid statistical basis. It outperforms multiple alternatives in simulation. The analysis of TCGA data on lung cancer and melanoma leads to interesting findings and models with superior prediction.
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Affiliation(s)
- Mengyun Wu
- School of Statistics and Management, Shanghai University of Finance and Economics, Shanghai, People's Republic of China.,Department of Biostatistics, Yale University, New Haven, Connecticut, United States of America
| | - Yangguang Zang
- Department of Biostatistics, Yale University, New Haven, Connecticut, United States of America.,School of Mathematical Sciences, University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Sanguo Zhang
- School of Mathematical Sciences, University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Jian Huang
- Department of Statistics and Actuarial Science, University of Iowa, Iowa City, Iowa, United States of America
| | - Shuangge Ma
- Department of Biostatistics, Yale University, New Haven, Connecticut, United States of America
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191
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Wang Y, Wactawski-Wende J, Sucheston-Campbell LE, Preus L, Hovey KM, Nie J, Jackson RD, Handelman SK, Nassir R, Crandall CJ, Ochs-Balcom HM. Gene-Hormone Therapy Interaction and Fracture Risk in Postmenopausal Women. J Clin Endocrinol Metab 2017; 102:1908-1916. [PMID: 28324062 PMCID: PMC5470770 DOI: 10.1210/jc.2016-2936] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 02/28/2017] [Indexed: 12/30/2022]
Abstract
CONTEXT Evidence supports a protective effect of menopausal hormone therapy (HT) on bone. However, whether genetic susceptibility modifies the association of HT and fracture risk is not sufficiently explored. OBJECTIVE The objective was to test an interaction between genetic susceptibility and HT on fracture risk. DESIGN We constructed two weighted genetic risk scores (GRSs) based on 16 fracture-associated variants (Fx-GRSs) and 50 bone mineral density variants (BMD-GRSs). We used Cox regression to estimate the main effects of GRSs and their interactions with HT on fracture risk. We estimated the relative excess risk due to interaction (RERI) as a measure of additive interaction. We also used the case-only approach to test for a multiplicative interaction. SETTING Forty US clinical centers. PARTICIPANTS A total of 9922 genotyped white postmenopausal women (age, 50 to 79) from the Women's Health Initiative HT randomized trials. MAIN OUTCOME MEASURES Adjudicated fracture incidence. RESULTS Both GRSs were associated with fracture risk per 1-unit increment in GRS (hazard ratio, 1.04 [95% confidence interval, 1.02 to 1.06] for Fx-GRS and hazard ratio, 1.03 [95% confidence interval,1.02-1.04] for BMD-GRS). We found no evidence for multiplicative interaction for either of the GRS. However, we observed a substantial additive interaction, where the highest quartile of both GRSs and randomization to placebo have excess fracture risk: Fx-GRS P for RERI = 0.047, BMD-GRS P for RERI = 0.046. CONCLUSIONS These results suggest that HT reduces fracture risk in postmenopausal women, especially in those at highest genetic risk of fracture and low BMD.
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Affiliation(s)
- Youjin Wang
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, The State University of New York, Buffalo, New York 14214
| | - Jean Wactawski-Wende
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, The State University of New York, Buffalo, New York 14214
| | - Lara E. Sucheston-Campbell
- College of Pharmacy, The Ohio State University, Columbus, Ohio 43210
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio 43210
| | - Leah Preus
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, The State University of New York, Buffalo, New York 14214
| | - Kathleen M. Hovey
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, The State University of New York, Buffalo, New York 14214
| | - Jing Nie
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, The State University of New York, Buffalo, New York 14214
| | - Rebecca D. Jackson
- Department of Internal Medicine, Division of Endocrinology, Diabetes and Metabolism, The Ohio State University, Columbus, Ohio 43210
| | - Samuel K. Handelman
- Center for Pharmacogenomics, Department of Molecular Virology, Immunology and Medical Genetics, The Ohio State University, Columbus, Ohio 43210
| | - Rami Nassir
- Department of Biochemistry and Molecular Medicine, University of California Davis, Davis, California 95616
| | - Carolyn J. Crandall
- Division of General Internal Medicine and Health Sciences Research, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California 90095
| | - Heather M. Ochs-Balcom
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, The State University of New York, Buffalo, New York 14214
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192
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Sun Z, Mukherjee B, Estes JP, Vokonas PS, Park SK. Exposure enriched outcome dependent designs for longitudinal studies of gene-environment interaction. Stat Med 2017; 36:2947-2960. [PMID: 28497531 DOI: 10.1002/sim.7332] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 03/08/2017] [Accepted: 04/20/2017] [Indexed: 12/15/2022]
Abstract
Joint effects of genetic and environmental factors have been increasingly recognized in the development of many complex human diseases. Despite the popularity of case-control and case-only designs, longitudinal cohort studies that can capture time-varying outcome and exposure information have long been recommended for gene-environment (G × E) interactions. To date, literature on sampling designs for longitudinal studies of G × E interaction is quite limited. We therefore consider designs that can prioritize a subsample of the existing cohort for retrospective genotyping on the basis of currently available outcome, exposure, and covariate data. In this work, we propose stratified sampling based on summaries of individual exposures and outcome trajectories and develop a full conditional likelihood approach for estimation that adjusts for the biased sample. We compare the performance of our proposed design and analysis with combinations of different sampling designs and estimation approaches via simulation. We observe that the full conditional likelihood provides improved estimates for the G × E interaction and joint exposure effects over uncorrected complete-case analysis, and the exposure enriched outcome trajectory dependent design outperforms other designs in terms of estimation efficiency and power for detection of the G × E interaction. We also illustrate our design and analysis using data from the Normative Aging Study, an ongoing longitudinal cohort study initiated by the Veterans Administration in 1963. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Zhichao Sun
- Department of Biostatistics, University of Michigan, Ann Arbor, 48109, MI, U.S.A
| | - Bhramar Mukherjee
- Department of Biostatistics, University of Michigan, Ann Arbor, 48109, MI, U.S.A.,Department of Epidemiology, University of Michigan, Ann Arbor, 48109, MI, U.S.A
| | - Jason P Estes
- Department of Biostatistics, University of Michigan, Ann Arbor, 48109, MI, U.S.A
| | - Pantel S Vokonas
- Veterans Affairs Normative Aging Study, VA Boston Healthcare System, Department of Medicine, Boston University School of Medicine, Boston, 02118, MA, U.S.A
| | - Sung Kyun Park
- Department of Epidemiology, University of Michigan, Ann Arbor, 48109, MI, U.S.A.,Department of Environmental Health Sciences, University of Michigan, Ann Arbor, 48109, MI, U.S.A
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193
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A combination test for detection of gene-environment interaction in cohort studies. Genet Epidemiol 2017; 41:396-412. [DOI: 10.1002/gepi.22043] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 02/06/2017] [Accepted: 02/06/2017] [Indexed: 12/24/2022]
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194
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Manrai AK, Cui Y, Bushel PR, Hall M, Karakitsios S, Mattingly CJ, Ritchie M, Schmitt C, Sarigiannis DA, Thomas DC, Wishart D, Balshaw DM, Patel CJ. Informatics and Data Analytics to Support Exposome-Based Discovery for Public Health. Annu Rev Public Health 2017; 38:279-294. [PMID: 28068484 PMCID: PMC5774331 DOI: 10.1146/annurev-publhealth-082516-012737] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The complexity of the human exposome-the totality of environmental exposures encountered from birth to death-motivates systematic, high-throughput approaches to discover new environmental determinants of disease. In this review, we describe the state of science in analyzing the human exposome and provide recommendations for the public health community to consider in dealing with analytic challenges of exposome-based biomedical research. We describe extant and novel analytic methods needed to associate the exposome with critical health outcomes and contextualize the data-centered challenges by drawing parallels to other research endeavors such as human genomics research. We discuss efforts for training scientists who can bridge public health, genomics, and biomedicine in informatics and statistics. If an exposome data ecosystem is brought to fruition, it will likely play a role as central as genomic science has had in molding the current and new generations of biomedical researchers, computational scientists, and public health research programs.
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Affiliation(s)
- Arjun K Manrai
- Department of Biomedical Informatics, Harvard Medical School, Boston, Massachusetts 02115;
| | - Yuxia Cui
- National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina 27709;
| | - Pierre R Bushel
- National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina 27709;
| | - Molly Hall
- Center for Systems Genomics, The Pennsylvania State University, College Station, Pennsylvania 16802
| | - Spyros Karakitsios
- Environmental Engineering Laboratory, Department of Chemical Engineering, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Carolyn J Mattingly
- Department of Biological Sciences, College of Sciences, North Carolina State University, Raleigh, North Carolina 27695
| | - Marylyn Ritchie
- Center for Systems Genomics, The Pennsylvania State University, College Station, Pennsylvania 16802
- Geisinger Health System, Danville, Pennsylvania 17821
| | - Charles Schmitt
- Renaissance Computing Institute, Chapel Hill, North Carolina 27517
| | - Denis A Sarigiannis
- Environmental Engineering Laboratory, Department of Chemical Engineering, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Duncan C Thomas
- Division of Biostatistics, Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California 90089-9011
| | - David Wishart
- Departments of Biological Sciences and Computing Science, University of Alberta, Edmonton, Alberta T6G 2E8, Canada
| | - David M Balshaw
- National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina 27709;
| | - Chirag J Patel
- Department of Biomedical Informatics, Harvard Medical School, Boston, Massachusetts 02115;
- Center for Assessment Technology and Continuous Health, Massachusetts General Hospital, Boston, Massachusetts 02114
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195
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Zhang C, Liu J, Shi Q, Zeng T, Chen L. Comparative network stratification analysis for identifying functional interpretable network biomarkers. BMC Bioinformatics 2017; 18:48. [PMID: 28361683 PMCID: PMC5374559 DOI: 10.1186/s12859-017-1462-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND A major challenge of bioinformatics in the era of precision medicine is to identify the molecular biomarkers for complex diseases. It is a general expectation that these biomarkers or signatures have not only strong discrimination ability, but also readable interpretations in a biological sense. Generally, the conventional expression-based or network-based methods mainly capture differential genes or differential networks as biomarkers, however, such biomarkers only focus on phenotypic discrimination and usually have less biological or functional interpretation. Meanwhile, the conventional function-based methods could consider the biomarkers corresponding to certain biological functions or pathways, but ignore the differential information of genes, i.e., disregard the active degree of particular genes involved in particular functions, thereby resulting in less discriminative ability on phenotypes. Hence, it is strongly demanded to develop elaborate computational methods to directly identify functional network biomarkers with both discriminative power on disease states and readable interpretation on biological functions. RESULTS In this paper, we present a new computational framework based on an integer programming model, named as Comparative Network Stratification (CNS), to extract functional or interpretable network biomarkers, which are of strongly discriminative power on disease states and also readable interpretation on biological functions. In addition, CNS can not only recognize the pathogen biological functions disregarded by traditional Expression-based/Network-based methods, but also uncover the active network-structures underlying such dysregulated functions underestimated by traditional Function-based methods. To validate the effectiveness, we have compared CNS with five state-of-the-art methods, i.e. GSVA, Pathifier, stSVM, frSVM and AEP on four datasets of different complex diseases. The results show that CNS can enhance the discriminative power of network biomarkers, and further provide biologically interpretable information or disease pathogenic mechanism of these biomarkers. A case study on type 1 diabetes (T1D) demonstrates that CNS can identify many dysfunctional genes and networks previously disregarded by conventional approaches. CONCLUSION Therefore, CNS is actually a powerful bioinformatics tool, which can identify functional or interpretable network biomarkers with both discriminative power on disease states and readable interpretation on biological functions. CNS was implemented as a Matlab package, which is available at http://www.sysbio.ac.cn/cb/chenlab/images/CNSpackage_0.1.rar .
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Affiliation(s)
- Chuanchao Zhang
- State Key Laboratory of Software Engineering, School of Computer, Wuhan University, Wuhan, 430072, China
- Key Laboratory of Systems Biology, Innovation Center for Cell Signaling Network, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Juan Liu
- State Key Laboratory of Software Engineering, School of Computer, Wuhan University, Wuhan, 430072, China.
| | - Qianqian Shi
- Key Laboratory of Systems Biology, Innovation Center for Cell Signaling Network, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Tao Zeng
- Key Laboratory of Systems Biology, Innovation Center for Cell Signaling Network, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200031, China.
| | - Luonan Chen
- Key Laboratory of Systems Biology, Innovation Center for Cell Signaling Network, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200031, China.
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196
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Recent Progress in Functional Genomic Studies of Depression and Suicide. CURRENT GENETIC MEDICINE REPORTS 2017. [DOI: 10.1007/s40142-017-0112-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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197
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Lu ZH, Khondker Z, Ibrahim JG, Wang Y, Zhu H. Bayesian longitudinal low-rank regression models for imaging genetic data from longitudinal studies. Neuroimage 2017; 149:305-322. [PMID: 28143775 DOI: 10.1016/j.neuroimage.2017.01.052] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 12/27/2016] [Accepted: 01/22/2017] [Indexed: 12/29/2022] Open
Abstract
To perform a joint analysis of multivariate neuroimaging phenotypes and candidate genetic markers obtained from longitudinal studies, we develop a Bayesian longitudinal low-rank regression (L2R2) model. The L2R2 model integrates three key methodologies: a low-rank matrix for approximating the high-dimensional regression coefficient matrices corresponding to the genetic main effects and their interactions with time, penalized splines for characterizing the overall time effect, and a sparse factor analysis model coupled with random effects for capturing within-subject spatio-temporal correlations of longitudinal phenotypes. Posterior computation proceeds via an efficient Markov chain Monte Carlo algorithm. Simulations show that the L2R2 model outperforms several other competing methods. We apply the L2R2 model to investigate the effect of single nucleotide polymorphisms (SNPs) on the top 10 and top 40 previously reported Alzheimer disease-associated genes. We also identify associations between the interactions of these SNPs with patient age and the tissue volumes of 93 regions of interest from patients' brain images obtained from the Alzheimer's Disease Neuroimaging Initiative.
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Affiliation(s)
- Zhao-Hua Lu
- Department of Biostatistics, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Zakaria Khondker
- Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Joseph G Ibrahim
- Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Yue Wang
- Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Hongtu Zhu
- Department of Biostatistics, University of Texas MD Anderson Cancer Center, Houston, TX, USA.
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198
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A systematic SNP selection approach to identify mechanisms underlying disease aetiology: linking height to post-menopausal breast and colorectal cancer risk. Sci Rep 2017; 7:41034. [PMID: 28117334 PMCID: PMC5259777 DOI: 10.1038/srep41034] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 12/15/2016] [Indexed: 01/28/2023] Open
Abstract
Data from GWAS suggest that SNPs associated with complex diseases or traits tend to co-segregate in regions of low recombination, harbouring functionally linked gene clusters. This phenomenon allows for selecting a limited number of SNPs from GWAS repositories for large-scale studies investigating shared mechanisms between diseases. For example, we were interested in shared mechanisms between adult-attained height and post-menopausal breast cancer (BC) and colorectal cancer (CRC) risk, because height is a risk factor for these cancers, though likely not a causal factor. Using SNPs from public GWAS repositories at p-values < 1 × 10−5 and a genomic sliding window of 1 mega base pair, we identified SNP clusters including at least one SNP associated with height and one SNP associated with either post-menopausal BC or CRC risk (or both). SNPs were annotated to genes using HapMap and GRAIL and analysed for significantly overrepresented pathways using ConsensuspathDB. Twelve clusters including 56 SNPs annotated to 26 genes were prioritised because these included at least one height- and one BC risk- or CRC risk-associated SNP annotated to the same gene. Annotated genes were involved in Indian hedgehog signalling (p-value = 7.78 × 10−7) and several cancer site-specific pathways. This systematic approach identified a limited number of clustered SNPs, which pinpoint potential shared mechanisms linking together the complex phenotypes height, post-menopausal BC and CRC.
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199
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Greene CS, Himmelstein DS. Genetic Association-Guided Analysis of Gene Networks for the Study of Complex Traits. ACTA ACUST UNITED AC 2017; 9:179-84. [PMID: 27094199 DOI: 10.1161/circgenetics.115.001181] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Accepted: 03/08/2016] [Indexed: 12/29/2022]
Affiliation(s)
- Casey S Greene
- From the Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia (C.S.G.); and Biological and Medical Informatics, University of California, San Francisco (D.S.H.).
| | - Daniel S Himmelstein
- From the Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia (C.S.G.); and Biological and Medical Informatics, University of California, San Francisco (D.S.H.)
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200
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Amos CI, Dennis J, Wang Z, Byun J, Schumacher FR, Gayther SA, Casey G, Hunter DJ, Sellers TA, Gruber SB, Dunning AM, Michailidou K, Fachal L, Doheny K, Spurdle AB, Li Y, Xiao X, Romm J, Pugh E, Coetzee GA, Hazelett DJ, Bojesen SE, Caga-Anan C, Haiman CA, Kamal A, Luccarini C, Tessier D, Vincent D, Bacot F, Van Den Berg DJ, Nelson S, Demetriades S, Goldgar DE, Couch FJ, Forman JL, Giles GG, Conti DV, Bickeböller H, Risch A, Waldenberger M, Brüske-Hohlfeld I, Hicks BD, Ling H, McGuffog L, Lee A, Kuchenbaecker K, Soucy P, Manz J, Cunningham JM, Butterbach K, Kote-Jarai Z, Kraft P, FitzGerald L, Lindström S, Adams M, McKay JD, Phelan CM, Benlloch S, Kelemen LE, Brennan P, Riggan M, O'Mara TA, Shen H, Shi Y, Thompson DJ, Goodman MT, Nielsen SF, Berchuck A, Laboissiere S, Schmit SL, Shelford T, Edlund CK, Taylor JA, Field JK, Park SK, Offit K, Thomassen M, Schmutzler R, Ottini L, Hung RJ, Marchini J, Amin Al Olama A, Peters U, Eeles RA, Seldin MF, Gillanders E, Seminara D, Antoniou AC, Pharoah PDP, Chenevix-Trench G, Chanock SJ, Simard J, Easton DF. The OncoArray Consortium: A Network for Understanding the Genetic Architecture of Common Cancers. Cancer Epidemiol Biomarkers Prev 2017; 26:126-135. [PMID: 27697780 PMCID: PMC5224974 DOI: 10.1158/1055-9965.epi-16-0106] [Citation(s) in RCA: 240] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 06/30/2016] [Accepted: 07/29/2016] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Common cancers develop through a multistep process often including inherited susceptibility. Collaboration among multiple institutions, and funding from multiple sources, has allowed the development of an inexpensive genotyping microarray, the OncoArray. The array includes a genome-wide backbone, comprising 230,000 SNPs tagging most common genetic variants, together with dense mapping of known susceptibility regions, rare variants from sequencing experiments, pharmacogenetic markers, and cancer-related traits. METHODS The OncoArray can be genotyped using a novel technology developed by Illumina to facilitate efficient genotyping. The consortium developed standard approaches for selecting SNPs for study, for quality control of markers, and for ancestry analysis. The array was genotyped at selected sites and with prespecified replicate samples to permit evaluation of genotyping accuracy among centers and by ethnic background. RESULTS The OncoArray consortium genotyped 447,705 samples. A total of 494,763 SNPs passed quality control steps with a sample success rate of 97% of the samples. Participating sites performed ancestry analysis using a common set of markers and a scoring algorithm based on principal components analysis. CONCLUSIONS Results from these analyses will enable researchers to identify new susceptibility loci, perform fine-mapping of new or known loci associated with either single or multiple cancers, assess the degree of overlap in cancer causation and pleiotropic effects of loci that have been identified for disease-specific risk, and jointly model genetic, environmental, and lifestyle-related exposures. IMPACT Ongoing analyses will shed light on etiology and risk assessment for many types of cancer. Cancer Epidemiol Biomarkers Prev; 26(1); 126-35. ©2016 AACR.
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Affiliation(s)
- Christopher I Amos
- Biomedical Data Science, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire.
| | - Joe Dennis
- Centre for Cancer Genetic Epidemiology, University of Cambridge, Cambridge, United Kingdom
| | - Zhaoming Wang
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, Tennessee
| | - Jinyoung Byun
- Biomedical Data Science, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
| | - Fredrick R Schumacher
- Department of Epidemiology and Biostatistics, School of Medicine, Case Western Reserve University, Cleveland, Ohio
| | - Simon A Gayther
- The Center for Bioinformatics and Functional Genomics at Cedars Sinai Medical Center, Greater Los Angeles Area, Los Angeles, California
| | - Graham Casey
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, California
| | - David J Hunter
- Department of Epidemiology, Program in Molecular and Genetic Epidemiology, Harvard School of Public Health, Boston, Massachusetts
| | - Thomas A Sellers
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida
| | - Stephen B Gruber
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, California
| | - Alison M Dunning
- Centre for Cancer Genetic Epidemiology, University of Cambridge, Cambridge, United Kingdom
| | - Kyriaki Michailidou
- Centre for Cancer Genetic Epidemiology, University of Cambridge, Cambridge, United Kingdom
| | - Laura Fachal
- Centre for Cancer Genetic Epidemiology, University of Cambridge, Cambridge, United Kingdom
| | - Kimberly Doheny
- Center for Inherited Disease Research, Institute of Genetic Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Amanda B Spurdle
- Molecular Cancer Epidemiology, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Yafang Li
- Biomedical Data Science, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
| | - Xiangjun Xiao
- Biomedical Data Science, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
| | - Jane Romm
- Center for Inherited Disease Research, Institute of Genetic Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Elizabeth Pugh
- Center for Inherited Disease Research, Institute of Genetic Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland
| | | | | | - Stig E Bojesen
- Department of Clinical Biochemistry, Herlev and Gentofte Hospital, Copenhagen University Hospital, Copenhagen, Denmark
| | - Charlisse Caga-Anan
- Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, Maryland
| | - Christopher A Haiman
- The Center for Bioinformatics and Functional Genomics at Cedars Sinai Medical Center, Greater Los Angeles Area, Los Angeles, California
| | - Ahsan Kamal
- Biomedical Data Science, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
| | - Craig Luccarini
- Centre for Cancer Genetic Epidemiology, University of Cambridge, Cambridge, United Kingdom
| | - Daniel Tessier
- Génome Québec Innovation Centre, Montreal, Canada and McGill University, Montreal, Canada
| | - Daniel Vincent
- Génome Québec Innovation Centre, Montreal, Canada and McGill University, Montreal, Canada
| | - François Bacot
- Génome Québec Innovation Centre, Montreal, Canada and McGill University, Montreal, Canada
| | - David J Van Den Berg
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, California
| | - Stefanie Nelson
- Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, Maryland
| | - Stephen Demetriades
- University Health Network- The Princess Margaret Cancer Centre, Toronto, California
| | | | | | - Judith L Forman
- Biomedical Data Science, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
| | - Graham G Giles
- Cancer Epidemiology Centre, Cancer Council Victoria, Melbourne, Australia
- Cancer, Genetics and Immunology, Menzies Institute for Medical Research, Hobart, Australia
| | - David V Conti
- Division of Biostatistics, Department of Preventive Medicine, Zilkha Neurogenetic Institute, University of Southern California, Los Angeles, California
| | - Heike Bickeböller
- Department of Genetic Epidemiology, University Medical Center, Georg-August-University, Göttingen, Germany
| | - Angela Risch
- University of Salzburg and Cancer Cluster Salzburg, Salzburg, Austria
- Division of Epigenomics and Cancer Risk Factors, German Cancer Research Center, Heidelberg, Germany
- Translational Lung Research Center Heidelberg, Member of the German Center for Lung Research, Heidelberg, Germany
| | - Melanie Waldenberger
- Research Unit of Molecular Epidemiology, Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Irene Brüske-Hohlfeld
- Helmholtz Zentrum München, Institut für Epidemiologie I, Neuherberg, Oberschleissheim, Germany
| | - Belynda D Hicks
- Cancer Genomics Research Laboratory, Frederick National Laboratory for Cancer Research, Frederick, Maryland
| | - Hua Ling
- Center for Inherited Disease Research, Institute of Genetic Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Lesley McGuffog
- Cancer Epidemiology Centre, Cancer Council Victoria, Melbourne, Australia
- Cancer, Genetics and Immunology, Menzies Institute for Medical Research, Hobart, Australia
| | - Andrew Lee
- Centre for Cancer Genetic Epidemiology, University of Cambridge, Cambridge, United Kingdom
| | - Karoline Kuchenbaecker
- Centre for Cancer Genetic Epidemiology, University of Cambridge, Cambridge, United Kingdom
| | - Penny Soucy
- Cancer Genomics Laboratory, Centre Hospitalier Universitaire de Québec and Laval University, Québec City, Canada
| | - Judith Manz
- Research Unit of Molecular Epidemiology, Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | | | - Katja Butterbach
- Cancer Epidemiology, German Cancer Research Center, Heidelberg, Germany
| | | | - Peter Kraft
- Department of Epidemiology, Program in Molecular and Genetic Epidemiology, Harvard School of Public Health, Boston, Massachusetts
| | - Liesel FitzGerald
- Cancer Epidemiology Centre, Cancer Council Victoria, Melbourne, Australia
- Cancer, Genetics and Immunology, Menzies Institute for Medical Research, Hobart, Australia
| | - Sara Lindström
- Department of Epidemiology, Program in Molecular and Genetic Epidemiology, Harvard School of Public Health, Boston, Massachusetts
- Department of Epidemiology, University of Washington, Seattle, Washington
| | - Marcia Adams
- Center for Inherited Disease Research, Institute of Genetic Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - James D McKay
- International Agency for Research on Cancer, World Health Organization, Lyon, France
| | - Catherine M Phelan
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida
| | - Sara Benlloch
- Centre for Cancer Genetic Epidemiology, University of Cambridge, Cambridge, United Kingdom
| | - Linda E Kelemen
- Department of Public Health Sciences, Medical University of South Carolina, Charleston, South Carolina
| | - Paul Brennan
- International Agency for Research on Cancer, World Health Organization, Lyon, France
| | - Marjorie Riggan
- Department of Gynecology, Duke University Medical Center, Durham, North Carolina
| | - Tracy A O'Mara
- Cancer Division, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Hongbing Shen
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Medicine, School of Public Health, Nanjing Medical University, Nanjing, P.R. China
| | - Yongyong Shi
- Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Bio-X Institutes, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Deborah J Thompson
- Centre for Cancer Genetic Epidemiology, University of Cambridge, Cambridge, United Kingdom
| | | | - Sune F Nielsen
- Department of Clinical Biochemistry, Herlev and Gentofte Hospital, Copenhagen University Hospital, Copenhagen, Denmark
- Department of Oncology, Herlev and Gentofte Hospital, Copenhagen University Hospital, Copenhagen, Denmark
| | - Andrew Berchuck
- Department of Gynecology, Duke University Medical Center, Durham, North Carolina
| | - Sylvie Laboissiere
- Génome Québec Innovation Centre, Montreal, Canada and McGill University, Montreal, Canada
| | - Stephanie L Schmit
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida
- Department of Gastrointestinal Oncology, H. Lee Moffitt Cancer Center, Tampa, Florida
| | - Tameka Shelford
- Center for Inherited Disease Research, Institute of Genetic Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Christopher K Edlund
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, California
| | - Jack A Taylor
- Molecular and Genetic Epidemiology Group, National Institute for Environmental Health Sciences, Research Triangle Park, North Carolina
| | - John K Field
- Institute of Translational Medicine, University of Liverpool, Liverpool, United Kingdom
| | - Sue K Park
- College of Medicine, Seoul National University, Gwanak-gu, Seoul, Korea
| | - Kenneth Offit
- Clinical Genetics Service, Memorial Hospital, New York, New York
- Cancer Biology and Genetics Program, Sloan Kettering Institute, New York, New York
- Department of Medicine, Weill Cornell Medical College, New York, New York
| | - Mads Thomassen
- Department of Clinical Genetics, Odense University Hospital, Odense, Denmark
| | - Rita Schmutzler
- Zentrum Familiärer Brust- und Eierstockkrebs, Universitätsklinikum Köln, Köln, Germany
| | - Laura Ottini
- Department of Molecular Medicine, Sapienza, University of Rome, Rome, Italy
| | - Rayjean J Hung
- Lunenfeld-Tanenbaum Research Institute of Mount Sinai Hospital, University of Toronto, Toronto, Canada
| | | | - Ali Amin Al Olama
- Centre for Cancer Genetic Epidemiology, University of Cambridge, Cambridge, United Kingdom
| | - Ulrike Peters
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | | | - Michael F Seldin
- Department of Biochemistry and Molecular Medicine, University of California at Davis, Davis, California
- Department of Internal Medicine, University of California at Davis, Davis, California
| | - Elizabeth Gillanders
- Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, Maryland
| | - Daniela Seminara
- Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, Maryland
| | - Antonis C Antoniou
- Centre for Cancer Genetic Epidemiology, University of Cambridge, Cambridge, United Kingdom
| | - Paul D P Pharoah
- Centre for Cancer Genetic Epidemiology, University of Cambridge, Cambridge, United Kingdom
| | | | - Stephen J Chanock
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Bethesda, Maryland
| | - Jacques Simard
- Cancer Genomics Laboratory, Centre Hospitalier Universitaire de Québec and Laval University, Québec City, Canada
| | - Douglas F Easton
- Centre for Cancer Genetic Epidemiology, University of Cambridge, Cambridge, United Kingdom
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