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1. Human induced pluripotent stem cells (hiPSCs) derived cells reflect tissue specificity found in patients with Leigh syndrome French Canadian variant (LSFC)

Author

Roselle Gélinas, Chloé Lévesque, Julie Thompson Legault, Marie-Eve Rivard, Louis Villeneuve, Catherine Laprise, and John D. Rioux

Subjects
induced pluripotent stem cells, three germ layers, hepatocyte-like cells, cardiomyocyte cells, disease modeling, Leigh syndrome French Canadian type, Genetics, QH426-470
Abstract

Leigh syndrome French Canadian type (LSFC) is a recessive neurodegenerative disease characterized by tissue-specific deficiency in cytochrome c oxidase (COX), the fourth complex in the oxidative phosphorylation system. LSFC is caused by mutations in the leucine rich pentatricopeptide repeat containing gene (LRPPRC). Most LSFC patients in Quebec are homozygous for an A354V substitution that causes a decrease in the expression of the LRPPRC protein. While LRPPRC is ubiquitously expressed and is involved in multiple cellular functions, tissue-specific expression of LRPPRC and COX activity is correlated with clinical features. In this proof-of-principle study, we developed human induced pluripotent stem cell (hiPSC)-based models from fibroblasts taken from a patient with LSFC, homozygous for the LRPPRC*354V allele, and from a control, homozygous for the LRPPRC*A354 allele. Specifically, for both of these fibroblast lines we generated hiPSC, hiPSC-derived cardiomyocytes (hiPSC-CMs) and hepatocyte-like cell (hiPSC-HLCs) lines, as well as the three germ layers. We observed that LRPPRC protein expression is reduced in all cell lines/layers derived from LSFC patient compared to control cells, with a reduction ranging from ∼70% in hiPSC-CMs to undetectable levels in hiPSC-HLC, reflecting tissue heterogeneity observed in patient tissues. We next performed exploratory analyses of these cell lines and observed that COX protein expression was reduced in all cell lines derived from LSFC patient compared to control cells. We also observed that mutant LRPPRC was associated with altered expression of key markers of endoplasmic reticulum stress response in hiPSC-HLCs but not in other cell types that were tested. While this demonstrates feasibility of the approach to experimentally study genotype-based differences that have tissue-specific impacts, this study will need to be extended to a larger number of patients and controls to not only validate the current observations but also to delve more deeply in the pathogenic mechanisms of LSFC.

Published
2024
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2. The role of admixture in the rare variant contribution to inflammatory bowel disease

Author

Courtney Astore, Shivam Sharma, Sini Nagpal, NIDDK IBD Genetics Consortium, David J. Cutler, John D. Rioux, Judy H. Cho, Dermot P. B. McGovern, Steven R. Brant, Subra Kugathasan, I. King Jordan, and Greg Gibson

Subjects
Trans-ancestry, Crohn’s disease, NOD2, Genetic risk assessment, Whole genome sequencing, Medicine, Genetics, QH426-470
Abstract

Abstract Background Identification of rare variants involved in complex, polygenic diseases like Crohn’s disease (CD) has accelerated with the introduction of whole exome/genome sequencing association studies. Rare variants can be used in both diagnostic and therapeutic assessments; however, since they are likely to be restricted to specific ancestry groups, their contributions to risk assessment need to be evaluated outside the discovery population. Prior studies implied that the three known rare variants in NOD2 are absent in West African and Asian populations and only contribute in African Americans via admixture. Methods Whole genome sequencing (WGS) data from 3418 African American individuals, 1774 inflammatory bowel disease (IBD) cases, and 1644 controls were used to assess odds ratios and allele frequencies (AF), as well as haplotype-specific ancestral origins of European-derived CD variants discovered in a large exome-wide association study. Local and global ancestry was performed to assess the contribution of admixture to IBD contrasting European and African American cohorts. Results Twenty-five rare variants associated with CD in European discovery cohorts are typically five-fold lower frequency in African Americans. Correspondingly, where comparisons could be made, the rare variants were found to have a predicted four-fold reduced burden for IBD in African Americans, when compared to European individuals. Almost all of the rare CD European variants were found on European haplotypes in the African American cohort, implying that they contribute to disease risk in African Americans primarily due to recent admixture. In addition, proportion of European ancestry correlates the number of rare CD European variants each African American individual carry, as well as their polygenic risk of disease. Similar findings were observed for 23 mutations affecting 10 other common complex diseases for which the rare variants were discovered in European cohorts. Conclusions European-derived Crohn’s disease rare variants are even more rare in African Americans and contribute to disease risk mainly due to admixture, which needs to be accounted for when performing cross-ancestry genetic assessments.

Published
2023
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3. Identifying high-impact variants and genes in exomes of Ashkenazi Jewish inflammatory bowel disease patients

Author

Yiming Wu, Kyle Gettler, Meltem Ece Kars, Mamta Giri, Dalin Li, Cigdem Sevim Bayrak, Peng Zhang, Aayushee Jain, Patrick Maffucci, Ksenija Sabic, Tielman Van Vleck, Girish Nadkarni, Lee A. Denson, Harry Ostrer, Adam P. Levine, Elena R. Schiff, Anthony W. Segal, Subra Kugathasan, Peter D. Stenson, David N. Cooper, L. Philip Schumm, Scott Snapper, Mark J. Daly, Talin Haritunians, Richard H. Duerr, Mark S. Silverberg, John D. Rioux, Steven R. Brant, Dermot P. B. McGovern, Judy H. Cho, and Yuval Itan

Subjects
Science
Abstract

Abstract Inflammatory bowel disease (IBD) is a group of chronic digestive tract inflammatory conditions whose genetic etiology is still poorly understood. The incidence of IBD is particularly high among Ashkenazi Jews. Here, we identify 8 novel and plausible IBD-causing genes from the exomes of 4453 genetically identified Ashkenazi Jewish IBD cases (1734) and controls (2719). Various biological pathway analyses are performed, along with bulk and single-cell RNA sequencing, to demonstrate the likely physiological relatedness of the novel genes to IBD. Importantly, we demonstrate that the rare and high impact genetic architecture of Ashkenazi Jewish adult IBD displays significant overlap with very early onset-IBD genetics. Moreover, by performing biobank phenome-wide analyses, we find that IBD genes have pleiotropic effects that involve other immune responses. Finally, we show that polygenic risk score analyses based on genome-wide high impact variants have high power to predict IBD susceptibility.

Published
2023
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4. Gene-metabolite annotation with shortest reactional distance enhances metabolite genome-wide association studies results

Author

Cantin Baron, Sarah Cherkaoui, Sandra Therrien-Laperriere, Yann Ilboudo, Raphaël Poujol, Pamela Mehanna, Melanie E. Garrett, Marilyn J. Telen, Allison E. Ashley-Koch, Pablo Bartolucci, John D. Rioux, Guillaume Lettre, Christine Des Rosiers, Matthieu Ruiz, and Julie G. Hussin

Subjects
Association analysis, Computational bioinformatics, Quantitative genetics, Science
Abstract

Summary: Metabolite genome-wide association studies (mGWAS) have advanced our understanding of the genetic control of metabolite levels. However, interpreting these associations remains challenging due to a lack of tools to annotate gene-metabolite pairs beyond the use of conservative statistical significance threshold. Here, we introduce the shortest reactional distance (SRD) metric, drawing from the comprehensive KEGG database, to enhance the biological interpretation of mGWAS results. We applied this approach to three independent mGWAS, including a case study on sickle cell disease patients. Our analysis reveals an enrichment of small SRD values in reported mGWAS pairs, with SRD values significantly correlating with mGWAS p values, even beyond the standard conservative thresholds. We demonstrate the utility of SRD annotation in identifying potential false negatives and inaccuracies within current metabolic pathway databases. Our findings highlight the SRD metric as an objective, quantitative and easy-to-compute annotation for gene-metabolite pairs, suitable to integrate statistical evidence to biological networks.

Published
2023
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5. Investigating the Crime Scene—Molecular Signatures in Inflammatory Bowel Disease

Author

Vibeke Andersen, Tue B. Bennike, Corinna Bang, John D. Rioux, Isabelle Hébert-Milette, Toshiro Sato, Axel K. Hansen, and Ole H. Nielsen

Subjects
biomarkers, Crohn’s disease, gut microbiota, intestinal barrier, personalised medicine, ulcerative colitis, Biology (General), QH301-705.5, Chemistry, QD1-999
Abstract

Inflammatory bowel diseases (IBD) are without cure and troublesome to manage because of the considerable diversity between patients and the lack of reliable biomarkers. Several studies have demonstrated that diet, gut microbiota, genetics and other patient factors are essential for disease occurrence and progression. Understanding the link between these factors is crucial for identifying molecular signatures that identify biomarkers to advance the management of IBD. Recent technological breakthroughs and data integration have fuelled the intensity of this research. This research demonstrates that the effect of diet depends on patient factors and gut microbial activity. It also identifies a range of potential biomarkers for IBD management, including mucosa-derived cytokines, gasdermins and neutrophil extracellular traps, all of which need further evaluation before clinical translation. This review provides an update on cutting-edge research in IBD that aims to improve disease management and patient quality of life.

Published
2023
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6. Functional screen of inflammatory bowel disease genes reveals key epithelial functions

Author

Jessy Carol Ntunzwenimana, Gabrielle Boucher, Jean Paquette, Hugues Gosselin, Azadeh Alikashani, Nicolas Morin, Claudine Beauchamp, Louise Thauvette, Marie-Ève Rivard, Frédérique Dupuis, Sonia Deschênes, Sylvain Foisy, Frédéric Latour, Geneviève Lavallée, Mark J. Daly, Ramnik J. Xavier, the iGenoMed Consortium, Guy Charron, Philippe Goyette, and John D. Rioux

Subjects
Inflammatory bowel diseases, Type I interferon response, Mucosal immunity, Secretory immunoglobulins, Medicine, Genetics, QH426-470
Abstract

Abstract Background Genetic studies have been tremendously successful in identifying genomic regions associated with a wide variety of phenotypes, although the success of these studies in identifying causal genes, their variants, and their functional impacts has been more limited. Methods We identified 145 genes from IBD-associated genomic loci having endogenous expression within the intestinal epithelial cell compartment. We evaluated the impact of lentiviral transfer of the open reading frame (ORF) of these IBD genes into the HT-29 intestinal epithelial cell line via transcriptomic analyses. By comparing the genes in which expression was modulated by each ORF, as well as the functions enriched within these gene lists, we identified ORFs with shared impacts and their putative disease-relevant biological functions. Results Analysis of the transcriptomic data for cell lines expressing the ORFs for known causal genes such as HNF4a, IFIH1, and SMAD3 identified functions consistent with what is already known for these genes. These analyses also identified two major clusters of genes: Cluster 1 contained the known IBD causal genes IFIH1, SBNO2, NFKB1, and NOD2, as well as genes from other IBD loci (ZFP36L1, IRF1, GIGYF1, OTUD3, AIRE and PITX1), whereas Cluster 2 contained the known causal gene KSR1 and implicated DUSP16 from another IBD locus. Our analyses highlight how multiple IBD gene candidates can impact on epithelial structure and function, including the protection of the mucosa from intestinal microbiota, and demonstrate that DUSP16 acts a regulator of MAPK activity and contributes to mucosal defense, in part via its regulation of the polymeric immunoglobulin receptor, involved in the protection of the intestinal mucosa from enteric microbiota. Conclusions This functional screen, based on expressing IBD genes within an appropriate cellular context, in this instance intestinal epithelial cells, resulted in changes to the cell’s transcriptome that are relevant to their endogenous biological function(s). This not only helped in identifying likely causal genes within genetic loci but also provided insight into their biological functions. Furthermore, this work has highlighted the central role of intestinal epithelial cells in IBD pathophysiology, providing a scientific rationale for a drug development strategy that targets epithelial functions in addition to the current therapies targeting immune functions.

Published
2021
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7. Inflammatory bowel disease patient perceptions of diagnostic and monitoring tests and procedures

Author

Isabelle Noiseux, Sophie Veilleux, Alain Bitton, Rita Kohen, Luc Vachon, Brian White Guay, and John D. Rioux

Subjects
Monitoring, Diagnostic, Inflammatory bowel disease, Tests, Procedures, Diseases of the digestive system. Gastroenterology, RC799-869
Abstract

Abstract Background Inflammatory Bowel Disease (IBD) with its high incidence and prevalence rates in Canada generates a heavy burden of tests and procedures. The purpose of this study is to gain a better understanding of the transfer of information from physician to patient, as well as the patient understanding and perceptions about the tests and procedures that are ordered to them in the context of IBD diagnosis and monitoring. Methods An online questionnaire was completed by 210 IBD patients in Canada. Information on the five most-often used tests or procedures in IBD diagnosis/monitoring was collected. These include: general blood test, colonoscopy, colon biopsy, medical imaging and stool testing. Results The general blood test is both the most ordered and most refused tool. It is also the one with which patients are the least comfortable, the one that generates the least concern and the one about which physicians provide the least information. The stool test is the test/procedure with which patients are the most comfortable. Procedures raise more concerns among patients and physicians provide more information about why they are needed, their impact and the risks they present. Very little information is provided to patients about the risks of having false positives or negative tests. Conclusions This study provides an initial understanding of patient perceptions, the transfer of information from a physician to a patient and a patient’s understanding of the tests and procedures that will be required to treat IBD throughout what is a lifelong disease. The present study takes a first step in better understanding the acceptance of the test or procedure by IBD patients, which is essential for them to adhere to the monitoring process.

Published
2019
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8. Transancestral mapping and genetic load in systemic lupus erythematosus

Author

Carl D. Langefeld, Hannah C. Ainsworth, Deborah S. Cunninghame Graham, Jennifer A. Kelly, Mary E. Comeau, Miranda C. Marion, Timothy D. Howard, Paula S. Ramos, Jennifer A. Croker, David L. Morris, Johanna K. Sandling, Jonas Carlsson Almlöf, Eduardo M. Acevedo-Vásquez, Graciela S. Alarcón, Alejandra M. Babini, Vicente Baca, Anders A. Bengtsson, Guillermo A. Berbotto, Marc Bijl, Elizabeth E. Brown, Hermine I. Brunner, Mario H. Cardiel, Luis Catoggio, Ricard Cervera, Jorge M. Cucho-Venegas, Solbritt Rantapää Dahlqvist, Sandra D’Alfonso, Berta Martins Da Silva, Iñigo de la Rúa Figueroa, Andrea Doria, Jeffrey C. Edberg, Emőke Endreffy, Jorge A. Esquivel-Valerio, Paul R. Fortin, Barry I. Freedman, Johan Frostegård, Mercedes A. García, Ignacio García de la Torre, Gary S. Gilkeson, Dafna D. Gladman, Iva Gunnarsson, Joel M. Guthridge, Jennifer L. Huggins, Judith A. James, Cees G. M. Kallenberg, Diane L. Kamen, David R. Karp, Kenneth M. Kaufman, Leah C. Kottyan, László Kovács, Helle Laustrup, Bernard R. Lauwerys, Quan-Zhen Li, Marco A. Maradiaga-Ceceña, Javier Martín, Joseph M. McCune, David R. McWilliams, Joan T. Merrill, Pedro Miranda, José F. Moctezuma, Swapan K. Nath, Timothy B. Niewold, Lorena Orozco, Norberto Ortego-Centeno, Michelle Petri, Christian A. Pineau, Bernardo A. Pons-Estel, Janet Pope, Prithvi Raj, Rosalind Ramsey-Goldman, John D. Reveille, Laurie P. Russell, José M. Sabio, Carlos A. Aguilar-Salinas, Hugo R. Scherbarth, Raffaella Scorza, Michael F. Seldin, Christopher Sjöwall, Elisabet Svenungsson, Susan D. Thompson, Sergio M. A. Toloza, Lennart Truedsson, Teresa Tusié-Luna, Carlos Vasconcelos, Luis M. Vilá, Daniel J. Wallace, Michael H. Weisman, Joan E. Wither, Tushar Bhangale, Jorge R. Oksenberg, John D. Rioux, Peter K. Gregersen, Ann-Christine Syvänen, Lars Rönnblom, Lindsey A. Criswell, Chaim O. Jacob, Kathy L. Sivils, Betty P. Tsao, Laura E. Schanberg, Timothy W. Behrens, Earl D. Silverman, Marta E. Alarcón-Riquelme, Robert P. Kimberly, John B. Harley, Edward K. Wakeland, Robert R. Graham, Patrick M. Gaffney, and Timothy J. Vyse

Subjects
Science
Abstract

Systemic lupus erythematosus (SLE) is an autoimmune disease with a strong ethnic and gender bias. In a transancestral genetic association study, Langefeldet al. identify 24 novel regions associated with risk to lupus and propose a cumulative hits hypothesis for loci conferring risk to SLE.

Published
2017
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9. Genetic loci associated with heart rate variability and their effects on cardiac disease risk

Author

Ilja M. Nolte, M. Loretto Munoz, Vinicius Tragante, Azmeraw T. Amare, Rick Jansen, Ahmad Vaez, Benedikt von der Heyde, Christy L. Avery, Joshua C. Bis, Bram Dierckx, Jenny van Dongen, Stephanie M. Gogarten, Philippe Goyette, Jussi Hernesniemi, Ville Huikari, Shih-Jen Hwang, Deepali Jaju, Kathleen F. Kerr, Alexander Kluttig, Bouwe P. Krijthe, Jitender Kumar, Sander W. van der Laan, Leo-Pekka Lyytikäinen, Adam X. Maihofer, Arpi Minassian, Peter J. van der Most, Martina Müller-Nurasyid, Michel Nivard, Erika Salvi, James D. Stewart, Julian F. Thayer, Niek Verweij, Andrew Wong, Delilah Zabaneh, Mohammad H. Zafarmand, Abdel Abdellaoui, Sulayma Albarwani, Christine Albert, Alvaro Alonso, Foram Ashar, Juha Auvinen, Tomas Axelsson, Dewleen G. Baker, Paul I. W. de Bakker, Matteo Barcella, Riad Bayoumi, Rob J. Bieringa, Dorret Boomsma, Gabrielle Boucher, Annie R. Britton, Ingrid Christophersen, Andrea Dietrich, George B. Ehret, Patrick T. Ellinor, Markku Eskola, Janine F. Felix, John S. Floras, Oscar H. Franco, Peter Friberg, Maaike G. J. Gademan, Mark A. Geyer, Vilmantas Giedraitis, Catharina A. Hartman, Daiane Hemerich, Albert Hofman, Jouke-Jan Hottenga, Heikki Huikuri, Nina Hutri-Kähönen, Xavier Jouven, Juhani Junttila, Markus Juonala, Antti M. Kiviniemi, Jan A. Kors, Meena Kumari, Tatiana Kuznetsova, Cathy C. Laurie, Joop D. Lefrandt, Yong Li, Yun Li, Duanping Liao, Marian C. Limacher, Henry J. Lin, Cecilia M. Lindgren, Steven A. Lubitz, Anubha Mahajan, Barbara McKnight, Henriette Meyer zu Schwabedissen, Yuri Milaneschi, Nina Mononen, Andrew P. Morris, Mike A. Nalls, Gerjan Navis, Melanie Neijts, Kjell Nikus, Kari E. North, Daniel T. O'Connor, Johan Ormel, Siegfried Perz, Annette Peters, Bruce M. Psaty, Olli T. Raitakari, Victoria B. Risbrough, Moritz F. Sinner, David Siscovick, Johannes H. Smit, Nicholas L. Smith, Elsayed Z. Soliman, Nona Sotoodehnia, Jan A. Staessen, Phyllis K. Stein, Adrienne M. Stilp, Katarzyna Stolarz-Skrzypek, Konstantin Strauch, Johan Sundström, Cees A. Swenne, Ann-Christine Syvänen, Jean-Claude Tardif, Kent D. Taylor, Alexander Teumer, Timothy A. Thornton, Lesley E. Tinker, André G. Uitterlinden, Jessica van Setten, Andreas Voss, Melanie Waldenberger, Kirk C. Wilhelmsen, Gonneke Willemsen, Quenna Wong, Zhu-Ming Zhang, Alan B. Zonderman, Daniele Cusi, Michele K. Evans, Halina K. Greiser, Pim van der Harst, Mohammad Hassan, Erik Ingelsson, Marjo-Riitta Järvelin, Stefan Kääb, Mika Kähönen, Mika Kivimaki, Charles Kooperberg, Diana Kuh, Terho Lehtimäki, Lars Lind, Caroline M. Nievergelt, Chris J. O'Donnell, Albertine J. Oldehinkel, Brenda Penninx, Alexander P. Reiner, Harriëtte Riese, Arie M. van Roon, John D. Rioux, Jerome I. Rotter, Tamar Sofer, Bruno H. Stricker, Henning Tiemeier, Tanja G. M. Vrijkotte, Folkert W. Asselbergs, Bianca J. J. M. Brundel, Susan R. Heckbert, Eric A. Whitsel, Marcel den Hoed, Harold Snieder, and Eco J. C. de Geus

Subjects
Science
Abstract

Heart rate variability (HRV) describes the individual variation in cardiac cycle duration and is a measure of vagal control of heart rate. Here, the authors identify seventeen single-nucleotide polymorphisms associated with HRV, lending new insight into the vagal regulation of heart rhythm.

Published
2017
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10. A protein-truncating R179X variant in RNF186 confers protection against ulcerative colitis

Author

Manuel A. Rivas, Daniel Graham, Patrick Sulem, Christine Stevens, A. Nicole Desch, Philippe Goyette, Daniel Gudbjartsson, Ingileif Jonsdottir, Unnur Thorsteinsdottir, Frauke Degenhardt, Sören Mucha, Mitja I. Kurki, Dalin Li, Mauro D’Amato, Vito Annese, Severine Vermeire, Rinse K. Weersma, Jonas Halfvarson, Paulina Paavola-Sakki, Maarit Lappalainen, Monkol Lek, Beryl Cummings, Taru Tukiainen, Talin Haritunians, Leena Halme, Lotta L. E. Koskinen, Ashwin N. Ananthakrishnan, Yang Luo, Graham A. Heap, Marijn C. Visschedijk, UK IBD Genetics Consortium, NIDDK IBD Genetics Consortium, Daniel G. MacArthur, Benjamin M. Neale, Tariq Ahmad, Carl A. Anderson, Steven R. Brant, Richard H. Duerr, Mark S. Silverberg, Judy H Cho, Aarno Palotie, Päivi Saavalainen, Kimmo Kontula, Martti Färkkilä, Dermot P. B. McGovern, Andre Franke, Kari Stefansson, John D. Rioux, Ramnik J. Xavier, and Mark J. Daly

Subjects
Science
Abstract

While hundreds of loci are linked with inflammatory bowel diseases (IBDs), the functional consequences of the associated variants remain unclear. Here, the authors screened in ulcerative colitis (UC) patients’ genomes for protein-truncating variants near IBD loci, and identify a protein truncating variant in RNF186to be protective against UC.

Published
2016
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12. A Metabolic Signature of Mitochondrial Dysfunction Revealed through a Monogenic Form of Leigh Syndrome

Author

Julie Thompson Legault, Laura Strittmatter, Jessica Tardif, Rohit Sharma, Vanessa Tremblay-Vaillancourt, Chantale Aubut, Gabrielle Boucher, Clary B. Clish, Denis Cyr, Caroline Daneault, Paula J. Waters, Azadeh Aliskashani, Bruce G. Allen, Claudine Beauchamp, Chantal Bemeur, Yan Burelle, Guy Charron, Lise Coderre, Christine Des Rosiers, Sonia Deschênes, François Labarthe, Jeannine Landry, Catherine Laprise, Geneviève Lavallée, Pierre Lavoie, Bruno Maranda, Charles Morin, Yvette Mukaneza, Tamiko Nishimura, John D. Rioux, Marie-Ève Rivard, Florin Sasarman, Eric A. Shoubridge, Nancy Tremblay, Luc Vachon, and Josée Villeneuve

Subjects
Biology (General), QH301-705.5
Abstract

A decline in mitochondrial respiration represents the root cause of a large number of inborn errors of metabolism. It is also associated with common age-associated diseases and the aging process. To gain insight into the systemic, biochemical consequences of respiratory chain dysfunction, we performed a case-control, prospective metabolic profiling study in a genetically homogenous cohort of patients with Leigh syndrome French Canadian variant, a mitochondrial respiratory chain disease due to loss-of-function mutations in LRPPRC. We discovered 45 plasma and urinary analytes discriminating patients from controls, including classic markers of mitochondrial metabolic dysfunction (lactate and acylcarnitines), as well as unexpected markers of cardiometabolic risk (insulin and adiponectin), amino acid catabolism linked to NADH status (α-hydroxybutyrate), and NAD+ biosynthesis (kynurenine and 3-hydroxyanthranilic acid). Our study identifies systemic, metabolic pathway derangements that can lie downstream of primary mitochondrial lesions, with implications for understanding how the organelle contributes to rare and common diseases.

Published
2015
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13. Erratum: Genetic loci associated with heart rate variability and their effects on cardiac disease risk

Author

Ilja M. Nolte, M. Loretto Munoz, Vinicius Tragante, Azmeraw T. Amare, Rick Jansen, Ahmad Vaez, Benedikt von der Heyde, Christy L. Avery, Joshua C. Bis, Bram Dierckx, Jenny van Dongen, Stephanie M. Gogarten, Philippe Goyette, Jussi Hernesniemi, Ville Huikari, Shih-Jen Hwang, Deepali Jaju, Kathleen F. Kerr, Alexander Kluttig, Bouwe P. Krijthe, Jitender Kumar, Sander W. van der Laan, Leo-Pekka Lyytikäinen, Adam X. Maihofer, Arpi Minassian, Peter J. van der Most, Martina Müller-Nurasyid, Michel Nivard, Erika Salvi, James D. Stewart, Julian F. Thayer, Niek Verweij, Andrew Wong, Delilah Zabaneh, Mohammad H. Zafarmand, Abdel Abdellaoui, Sulayma Albarwani, Christine Albert, Alvaro Alonso, Foram Ashar, Juha Auvinen, Tomas Axelsson, Dewleen G. Baker, Paul I. W. de Bakker, Matteo Barcella, Riad Bayoumi, Rob J. Bieringa, Dorret Boomsma, Gabrielle Boucher, Annie R. Britton, Ingrid Christophersen, Andrea Dietrich, George B. Ehret, Patrick T. Ellinor, Markku Eskola, Janine F. Felix, John S. Floras, Oscar H. Franco, Peter Friberg, Maaike G. J. Gademan, Mark A. Geyer, Vilmantas Giedraitis, Catharina A. Hartman, Daiane Hemerich, Albert Hofman, Jouke-Jan Hottenga, Heikki Huikuri, Nina Hutri-Kähönen, Xavier Jouven, Juhani Junttila, Markus Juonala, Antti M. Kiviniemi, Jan A. Kors, Meena Kumari, Tatiana Kuznetsova, Cathy C. Laurie, Joop D. Lefrandt, Yong Li, Yun Li, Duanping Liao, Marian C. Limacher, Henry J. Lin, Cecilia M. Lindgren, Steven A. Lubitz, Anubha Mahajan, Barbara McKnight, Henriette Meyer zu Schwabedissen, Yuri Milaneschi, Nina Mononen, Andrew P. Morris, Mike A. Nalls, Gerjan Navis, Melanie Neijts, Kjell Nikus, Kari E. North, Daniel T. O'Connor, Johan Ormel, Siegfried Perz, Annette Peters, Bruce M. Psaty, Olli T. Raitakari, Victoria B. Risbrough, Moritz F. Sinner, David Siscovick, Johannes H. Smit, Nicholas L. Smith, Elsayed Z. Soliman, Nona Sotoodehnia, Jan A. Staessen, Phyllis K. Stein, Adrienne M. Stilp, Katarzyna Stolarz-Skrzypek, Konstantin Strauch, Johan Sundström, Cees A. Swenne, Ann-Christine Syvänen, Jean-Claude Tardif, Kent D. Taylor, Alexander Teumer, Timothy A. Thornton, Lesley E. Tinker, André G. Uitterlinden, Jessica van Setten, Andreas Voss, Melanie Waldenberger, Kirk C. Wilhelmsen, Gonneke Willemsen, Quenna Wong, Zhu-Ming Zhang, Alan B Zonderman, Daniele Cusi, Michele K. Evans, Halina K. Greiser, Pim van der Harst, Mohammad Hassan, Erik Ingelsson, Marjo-Riitta Järvelin, Stefan Kääb, Mika Kähönen, Mika Kivimaki, Charles Kooperberg, Diana Kuh, Terho Lehtimäki, Lars Lind, Caroline M. Nievergelt, Chris J. O'Donnell, Albertine J. Oldehinkel, Brenda Penninx, Alexander P. Reiner, Harriëtte Riese, Arie M. van Roon, John D. Rioux, Jerome I. Rotter, Tamar Sofer, Bruno H. Stricker, Henning Tiemeier, Tanja G. M. Vrijkotte, Folkert W. Asselbergs, Bianca J. J.M Brundel, Susan R. Heckbert, Eric A. Whitsel, Marcel den Hoed, Harold Snieder, and Eco J. C. de Geus

Subjects
Science
Abstract

Nature Communications 8: Article number: 15805 (2017); Published: 14 June 2017; Updated: 2 August 2017 In Supplementary Fig. 10 of this Article, images for panels a and b were inadvertently omitted. The correct version of Supplementary Fig. 10 is provided as Supplementary Information associated withthis Erratum.

Published
2017
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14. Erratum: A protein-truncating R179X variant in RNF186 confers protection against ulcerative colitis

Author

Manuel A. Rivas, Daniel Graham, Patrick Sulem, Christine Stevens, A. Nicole Desch, Philippe Goyette, Daniel Gudbjartsson, Ingileif Jonsdottir, Unnur Thorsteinsdottir, Frauke Degenhardt, Sören Mucha, Mitja I. Kurki, Dalin Li, Mauro D’Amato, Vito Annese, Severine Vermeire, Rinse K. Weersma, Jonas Halfvarson, Paulina Paavola-Sakki, Maarit Lappalainen, Monkol Lek, Beryl Cummings, Taru Tukiainen, Talin Haritunians, Leena Halme, Lotta L. E. Koskinen, Ashwin N. Ananthakrishnan, Yang Luo, Graham A. Heap, Marijn C. Visschedijk, UK IBD Genetics Consortium, NIDDK IBD Genetics Consortium, Daniel G. MacArthur, Benjamin M. Neale, Tariq Ahmad, Carl A. Anderson, Steven R. Brant, Richard H. Duerr, Mark S. Silverberg, Judy H. Cho, Aarno Palotie, Päivi Saavalainen, Kimmo Kontula, Martti Färkkilä, Dermot P. B. McGovern, Andre Franke, Kari Stefansson, John D. Rioux, Ramnik J. Xavier, and Mark J. Daly

Subjects
Science
Abstract

Nature Communications 7 Article number: 12342 (2016); Published 9 August 2016; Updated 13 September 2016 The HTML version of this Article incorrectly listed the authors of the UK IBD Genetics Consortium and the NIDDK IBD Genetics Consortium individually in the main author list. This has now been corrected in the HTML; the PDF version of the paper was correct from the time of publication.

Published
2016
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15. A structural variation reference for medical and population genetics.

Author

Ryan L. Collins, Harrison Brand, Konrad J. Karczewski, Xuefang Zhao, Jessica Alföldi, Laurent C. Francioli, Amit V. Khera, Chelsea Lowther, Laura D. Gauthier, Harold Wang, Nicholas A. Watts, Matthew Solomonson, Alexander Baumann, Ruchi Munshi, Mark Walker, Christopher W. Whelan, Yongqing Huang, Ted Brookings, Ted Sharpe, Matthew R. Stone, Elise Valkanas, Jack Fu, Grace Tiao, Kristen M. Laricchia, Valentín Ruano-Rubio, Christine Stevens, Namrata Gupta, Caroline Cusick, Lauren Margolin, Irina M. Armean, Eric Banks, Louis Bergelson, Kristian Cibulskis, Kristen M. Connolly, Miguel Covarrubias, Beryl B. Cummings, Mark J. Daly, Stacey Donnelly, Yossi Farjoun, Steven Ferriera, Stacey Gabriel, Jeff Gentry, Thibault Jeandet, Diane Kaplan, Christopher Llanwarne, Eric V. Minikel, Benjamin M. Neale, Sam Novod, Anne H. O'Donnell-Luria, Nikelle Petrillo, Timothy Poterba, David Roazen, Andrea Saltzman, Kaitlin E. Samocha, Molly Schleicher, Cotton Seed, José Soto, Kathleen Tibbetts, Charlotte Tolonen, Christopher Vittal, Gordon Wade, Arcturus Wang, Qingbo Wang, James S. Ware, Ben Weisburd, Nicola Whiffin, Carlos A. Aguilar Salinas, Tariq Ahmad 0003, Christine M. Albert, Diego Ardissino, Gil Atzmon, John Barnard, Laurent Beaugerie, Emelia J. Benjamin, Michael Boehnke, Lori L. Bonnycastle, Erwin P. Bottinger, Donald W. Bowden, Matthew J. Bown, John C. Chambers, Juliana C. Chan, Daniel Chasman, Judy Cho, Mina K. Chung, Bruce Cohen, Adolfo Correa, Dana Dabelea, Dawood Darbar, Ravindranath Duggirala, Josée Dupuis, Patrick T. Ellinor, Roberto Elosua, Jeanette Erdmann, Tõnu Esko, Martti Färkkilä, Jose Florez, Andre Franke, Gad Getz, Benjamin Glaser, Stephen J. Glatt, David Goldstein, Clicerio Gonzalez, Leif Groop, Christopher A. Haiman, Craig Hanis, Matthew Harms, Mikko Hiltunen, Matti M. Holi, Christina M. Hultman, Mikko Kallela, Jaakko Kaprio, Sekar Kathiresan, Bong-Jo Kim, Young Jin Kim, George Kirov, Jaspal Kooner, Seppo Koskinen, Harlan M. Krumholz, Subra Kugathasan, Soo Heon Kwak, Markku Laakso, Terho Lehtimäki, Ruth J. F. Loos, Steven A. Lubitz, Ronald C. W. Ma, Daniel G. MacArthur, Jaume Marrugat, Kari M. Mattila, Steven A. McCarroll, Mark I. McCarthy, Dermot McGovern, Ruth McPherson, James B. Meigs, Olle Melander, Andres Metspalu, Peter M. Nilsson, Michael C. O'Donovan, Dost öngür, Lorena Orozco, Michael J. Owen, Colin N. A. Palmer, Aarno Palotie, Kyong Soo Park, Carlos Pato, Ann E. Pulver, Nazneen Rahman, Anne M. Remes, John D. Rioux, Samuli Ripatti, Dan M. Roden, Danish Saleheen, Veikko Salomaa, Nilesh J. Samani, Jeremiah Scharf, Heribert Schunkert, Moore B. Shoemaker, Pamela Sklar, Hilkka Soininen, Harry Sokol, Tim Spector, Patrick F. Sullivan, Jaana Suvisaari, E. Shyong Tai, Yik Ying Teo, Tuomi Tiinamaija, Ming Tsuang, Dan Turner, Teresa Tusie-Luna, Erkki Vartiainen, Hugh Watkins, Rinse K. Weersma, Maija Wessman, James G. Wilson, Ramnik J. Xavier, Kent D. Taylor, Henry J. Lin, Stephen S. Rich, Wendy S. Post, Yii-Der Ida Chen, Jerome I. Rotter, Chad Nusbaum, Anthony A. Philippakis, Eric S. Lander, and Michael E. Talkowski

Published
2020
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16. Identifying transcript-level differential expression in primary human immune cells

Author

Saraï Mola, Claudine Beauchamp, Gabrielle Boucher, Sylvie Lesage, Mohamad Karaky, Philippe Goyette, Sylvain Foisy, and John D. Rioux

Subjects
Immunology, Molecular Biology
Abstract

Multipotential hematopoietic stem cells differentiate into a wide variety of immune cells with a diversity of functions, including the ability to respond to a variety of stimuli. Importantly, numerous studies have demonstrated the importance of gene transcription in defining cell identity and functions. While these studies have primarily been performed at the level of the gene, it is known that key immune genes such as CD44 and CD45 generate multiple different transcripts that are differentially expressed across different immune cells, and that encode proteins with different sequences and functions. Prior genomic surveys have shown that the mechanisms for generating diversity in expressed transcripts (alternate splicing, alternate transcription start sites, etc.) are very active in immune cells, but have been lacking in terms of identifying genes with multiple transcripts, that are differentially expressed, and likely to affect cell functions.We first identified the set of genes that had at least two transcripts expressed in our RNA sequencing dataset generated from purified populations of neutrophils, monocytes and five lymphocyte populations (B, NK, γδ T, CD4 + T and CD8 + T) from twelve healthy donors. Next, we developed a heuristic approach to identify genes where two or more transcripts have distinct expression patterns across lymphoid and/or myeloid populations. We then focused our annotation and interpretation on differentially expressed transcripts that affect the coding sequence. This process was repeated to identify transcripts that were differentially expressed between monocytes and populations of macrophages and LPS-stimulated macrophages derived from these monocytes in vitro.We found that over 55 % of genes had two or more expressed transcripts, with an average ∼3 transcripts per gene, and that 70 % of these had at least two of the transcripts that encoded proteins with different sequences. As expected, we identified a complex pattern of differential expression for multiple transcripts encoding the CD45 transmembrane protein, but we also found similar evidence for ten other genes (CD300A, FYB1, GPI, LITAF, PSMA1, PTMA, RPL32, SEPTIN9, SH3BP2, SH3KBP1) when comparing the expression patterns of transcripts within myeloid and lymphoid cells. We also identified five genes with differentially expressed transcripts associated with the transition from monocytes to macrophages (FNBP1, KLF6, and SEPTIN9) or between macrophages and LPS-stimulated macrophages (CD44, OAZ2, and SEPTIN9). For the most part, we found that the different transcripts of these genes are expected to impact specific biological functions, for example the different transcripts of SEPTIN9 likely regulate the cytoskeleton in immune cells via their interactions with actins filaments and microtubules.This analytic approach successfully identified multi-transcript genes that are differentially expressed across immune cells and could be applied to other transcriptomic data.Researchers can request access to the individual-level data from the current study by contacting the Montreal Heart Institute ethics committee at the following institutional email address: cer.icm@icm-mhi.org.

Published
2023

17. Fine-mapping inflammatory bowel disease loci to single-variant resolution.

Author

Hailiang Huang, Ming Fang, Luke Jostins, Masa Umicevic Mirkov, Gabrielle Boucher, Carl A. Anderson, Vibeke Andersen, Isabelle Cleynen, Adrian Cortes, François Crins, Mauro D'Amato, Valérie Deffontaine, Julia Dmitrieva, Elisa Docampo, Mahmoud Elansary, Kyle Kai-How Farh, Andre Franke, Ann-Stephan Gori, Philippe Goyette, Jonas Halfvarson, Talin Haritunians, Jo Knight, Ian C. Lawrance, Charlie W. Lees, Edouard Louis, Rob Mariman, Theo H. E. Meuwissen, Myriam Mni, Yukihide Momozawa, Miles Parkes, Sarah L. Spain, Emilie Théâtre, Gosia Trynka, Jack Satsangi, Suzanne van Sommeren, Severine Vermeire, Ramnik J. Xavier, Rinse K. Weersma, Richard H. Duerr, Christopher G. P. Mathew, John D. Rioux, Dermot P. B. McGovern, Judy H. Cho, Michel Georges, Mark J. Daly, and Jeffrey C. Barrett

Published
2017
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18. Inflamed Ulcerative Colitis Regions Associated With MRGPRX2-Mediated Mast Cell Degranulation and Cell Activation Modules, Defining a New Therapeutic Target

Author

Yuval Itan, Mark S. Silverberg, Steven R. Brant, Ujunwa M. Korie, Aayushee Jain, Inga Peter, Shikha Nayar, Ling-Shiang Chuang, Talin Haritunians, Ksenija Sabic, John D. Rioux, Gerardus Bongers, Nicole Villaverde, Colleen C. Chasteau, Arden Moscati, Richard H. Duerr, Ernie Chen, Nai Yun Hsu, Tin Htwe Thin, Judy H. Cho, Sari Joshowitz, Isaac L. Alter, Siarhei Dzedzik, Zhi Chai, Mamta Giri, Kyle Gettler, L. Philip Schumm, and Dermot P.B. McGovern

Subjects
Receptors, Neuropeptide, 0301 basic medicine, Colon, Inositol Phosphates, Cell, Nerve Tissue Proteins, Inflammation, CHO Cells, Biology, Ligands, Article, Cell Degranulation, Receptors, G-Protein-Coupled, Adrenomedullin, 03 medical and health sciences, Cricetulus, 0302 clinical medicine, medicine, Animals, Humans, Mast Cells, Phosphorylation, Extracellular Signal-Regulated MAP Kinases, Hepatology, Chinese hamster ovary cell, Gastroenterology, Degranulation, Genetic Variation, Transfection, Mast cell, beta-Arrestin 2, 030104 developmental biology, medicine.anatomical_structure, Case-Control Studies, Cancer research, Colitis, Ulcerative, 030211 gastroenterology & hepatology, Tumor necrosis factor alpha, medicine.symptom, Cell activation
Abstract

Background & Aims Recent literature has implicated a key role for mast cells in murine models of colonic inflammation, but their role in human ulcerative colitis (UC) is not well established. A major advance has been the identification of mrgprb2 (human orthologue, MRGPX2) as mediating IgE-independent mast cell activation. We sought to define mechanisms of mast cell activation and MRGPRX2 in human UC. Methods Colon tissues were collected from patients with UC for bulk RNA sequencing and lamina propria cells were isolated for MRGPRX2 activation studies and single-cell RNA sequencing. Genetic association of all protein-altering G-protein coupled receptor single-nucleotide polymorphism was performed in an Ashkenazi Jewish UC case-control cohort. Variants of MRGPRX2 were transfected into Chinese hamster ovary (CHO) and human mast cell (HMC) 1.1 cells to detect genotype-dependent effects on β-arrestin recruitment, IP-1 accumulation, and phosphorylated extracellular signal–regulated kinase. Results Mast cell-specific mediators and adrenomedullin (proteolytic precursor of PAMP-12, an MRGPRX2 agonist) are up-regulated in inflamed compared to uninflamed UC. MRGPRX2 stimulation induces carboxypeptidase secretion from inflamed UC. Of all protein-altering GPCR alleles, a unique variant of MRGPRX2, Asn62Ser, was most associated with and was bioinformatically predicted to alter arrestin recruitment. We validated that the UC protective serine allele enhances β-arrestin recruitment, decreases IP-1, and increases phosphorylated extracellular signal–regulated kinase with MRGPRX2 agonists. Single-cell RNA sequencing defines that adrenomedullin is expressed by activated fibroblasts and epithelial cells and that interferon gamma is a key upstream regulator of mast cell gene expression. Conclusion Inflamed UC regions are distinguished by MRGPRX2-mediated activation of mast cells, with decreased activation observed with a UC-protective genetic variant. These results define cell modules of UC activation and a new therapeutic target.

Published
2021

19. Human enteric viruses autonomously shape inflammatory bowel disease phenotype through divergent innate immunomodulation

Author

Fatemeh Adiliaghdam, Hajera Amatullah, Sreehaas Digumarthi, Tahnee L. Saunders, Raza-Ur Rahman, Lai Ping Wong, Ruslan Sadreyev, Lindsay Droit, Jean Paquette, Philippe Goyette, John D. Rioux, Richard Hodin, Kathie A. Mihindukulasuriya, Scott A. Handley, and Kate L. Jeffrey

Subjects
Inflammation, Immunology, General Medicine, Inflammatory Bowel Diseases, Article, digestive system diseases, Gastrointestinal Microbiome, Immunomodulation, Mice, Phenotype, Viruses, Animals, Humans, Enterovirus
Abstract

Altered enteric microorganisms in concert with host genetics shape inflammatory bowel disease (IBD) phenotypes. However, insight is limited to bacteria and fungi. We found that eukaryotic viruses and bacteriophages (collectively, the virome), enriched from non-IBD, noninflamed human colon resections, actively elicited atypical anti-inflammatory innate immune programs. Conversely, ulcerative colitis or Crohn’s disease colon resection viromes provoked inflammation, which was successfully dampened by non-IBD viromes. The IBD colon tissue virome was perturbed, including an increase in the enterovirus B species of eukaryotic picornaviruses, not previously detected in fecal virome studies. Mice humanized with non-IBD colon tissue viromes were protected from intestinal inflammation, whereas IBD virome mice exhibited exacerbated inflammation in a nucleic acid sensing–dependent fashion. Furthermore, there were detrimental consequences for IBD patient–derived intestinal epithelial cells bearing loss-of-function mutations within virus sensor MDA5 when exposed to viromes. Our results demonstrate that innate recognition of IBD or non-IBD human viromes autonomously influences intestinal homeostasis and disease phenotypes. Thus, perturbations in the intestinal virome, or an altered ability to sense the virome due to genetic variation, contribute to the induction of IBD. Harnessing the virome may offer therapeutic and biomarker potential.

Published
2022

20. A genetic association study of heart failure: more evidence for the role of BAG3 in idiopathic dilated cardiomyopathy

Author

Sandra Korol, Marie-Pierre Dubé, Ian Mongrain, Fannie Mottet, Essaïd Oussaïd, Yassamin Feroz Zada, John D. Rioux, Eileen O'Meara, Jean L. Rouleau, Sylvie Provost, Guillaume Lettre, Normand Racine, David Busseuil, Géraldine Asselin, Michel White, Simon de Denus, and Jean-Claude Tardif

Subjects
Candidate gene, medicine.medical_specialty, Short Communication, Genetic genealogy, Short Communications, Heart failure, 030204 cardiovascular system & hematology, 03 medical and health sciences, 0302 clinical medicine, B‐cell lymphoma 2‐associated anthanogene protein, Internal medicine, Idiopathic dilated cardiomyopathy, Genetics, medicine, Diseases of the circulatory (Cardiovascular) system, 030212 general & internal medicine, Allele, Genetic association, business.industry, Odds ratio, medicine.disease, Confidence interval, RC666-701, Cardiology and Cardiovascular Medicine, business
Abstract

Aims Few investigations have been conducted to identify genetic determinants of common, polygenetic forms of heart failure (HF), and only a limited number of these genetic associations have been validated by multiple groups. Methods and results We performed a case–control study to further investigate the potential impact of 14 previously reported candidate genes on the risk of HF and specific HF sub‐types. We also performed an exploratory genome‐wide study. We included 799 patients with HF and 1529 controls. After adjusting for age, sex, and genetic ancestry, we found that the C allele of rs2234962 in BAG3 was associated with a decreased risk of idiopathic dilated cardiomyopathy (odds ratio 0.42, 95% confidence interval 0.25–0.68, P = 0.0005), consistent with a previous report. No association for the other primary variants or exploratory genome‐wide study was found. Conclusions Our findings provide independent replication for the association between a common coding variant (rs2234962) in BAG3 and the risk of idiopathic dilated cardiomyopathy.

Published
2020

21. Landscape of multi-nucleotide variants in 125,748 human exomes and 15,708 genomes

Author

Ruth Loos, Qingbo Wang, Anne O'Donnell-Luria, Benjamin Glaser, James Ware, John D. Rioux, ROBERTO ELOSUA, Kristian Cibulskis, Laurent Francioli, E Shyong Tai, Terho Lehtimäki, Daniel MacArthur, Irina Armean, Matthew Bown, Tiinamaija Tuomi, Jeanette Erdmann, Matthew Solomonson, Harry Sokol, Aarno Palotie, Martti Färkkilä, Ronald Ma, Olle Melander, Emilia Solinas, Tampere University, Clinical Medicine, Department of Clinical Chemistry, Centre of Excellence in Complex Disease Genetics, HUS Abdominal Center, Institute for Molecular Medicine Finland, Helsinki Institute of Life Science HiLIFE, Department of Medicine, Clinicum, Gastroenterologian yksikkö, Helsinki University Hospital Area, Research Programs Unit, Aarno Palotie / Principal Investigator, Genomics of Neurological and Neuropsychiatric Disorders, Department of Public Health, Samuli Olli Ripatti / Principal Investigator, Complex Disease Genetics, Biostatistics Helsinki, Biosciences, and Rosetrees Trust

Subjects
0301 basic medicine, Mutation rate, Science, Nonsense mutation, General Physics and Astronomy, Computational biology, Genome, Article, General Biochemistry, Genetics and Molecular Biology, 03 medical and health sciences, Protein sequencing, 0302 clinical medicine, DNA Mutational Analysis, Genetic variation, ELEMENTS, lcsh:Science, Exome, SIGNATURES, Exome sequencing, Polymerase, 030304 developmental biology, 0303 health sciences, Multidisciplinary, biology, Haplotype, 1184 Genetics, developmental biology, physiology, Genome Aggregation Database Production Team, Genomics, General Chemistry, FRAMEWORK, EVOLUTION, SLIPPAGE, 030104 developmental biology, Haplotypes, CpG site, DE-NOVO MUTATIONS, Genome Aggregation Database Consortium, 030220 oncology & carcinogenesis, Mutation (genetic algorithm), WHOLE-GENOME, PATTERNS, biology.protein, DNA-POLYMERASE-ZETA, REPEATS, lcsh:Q, 3111 Biomedicine, 030217 neurology & neurosurgery
Abstract

Multi-nucleotide variants (MNVs), defined as two or more nearby variants existing on the same haplotype in an individual, are a clinically and biologically important class of genetic variation. However, existing tools typically do not accurately classify MNVs, and understanding of their mutational origins remains limited. Here, we systematically survey MNVs in 125,748 whole exomes and 15,708 whole genomes from the Genome Aggregation Database (gnomAD). We identify 1,792,248 MNVs across the genome with constituent variants falling within 2 bp distance of one another, including 18,756 variants with a novel combined effect on protein sequence. Finally, we estimate the relative impact of known mutational mechanisms - CpG deamination, replication error by polymerase zeta, and polymerase slippage at repeat junctions - on the generation of MNVs. Our results demonstrate the value of haplotype-aware variant annotation, and refine our understanding of genome-wide mutational mechanisms of MNVs., Multi-nucleotide variants (MNV) are genetic variants in close proximity of each other on the same haplotype whose functional impact is difficult to predict if they reside in the same codon. Here, Wang et al. use the gnomAD dataset to assemble a catalogue of MNVs and estimate their global mutation rate.

Published
2020

22. A Role for CXCR3 Ligands as Biomarkers of Post-Operative Crohn's Disease Recurrence

Author

Shadi Nayeri, Dermot P.B. McGovern, Mamta Giri, Richard H. Duerr, Cristian Hernandez-Rocha, Jiayi Ji, Shikha Nayar, Ksenija Sabic, Steven R. Brant, Mark S. Silverberg, Phil Schumm, Margaret Walshe, Mark Lazarev, Liangyuan Hu, Judy H. Cho, and John D. Rioux

Subjects
medicine.medical_specialty, Receptors, CXCR3, MMP1, Colonoscopy, Disease, Gastroenterology, Crohn Disease, Ileum, Recurrence, Internal medicine, medicine, Humans, CXCL11, Retrospective Studies, Crohn's disease, Receiver operating characteristic, medicine.diagnostic_test, business.industry, Area under the curve, Bayes Theorem, General Medicine, Original Articles, medicine.disease, Biomarker (medicine), business, Biomarkers
Abstract

Background and Aims Crohn’s disease [CD] recurrence following ileocolic resection [ICR] is common. We sought to identify blood-based biomarkers associated with CD recurrence. Methods CD patients undergoing ICR were recruited across six centres. Serum samples were obtained at post-operative colonoscopy. A multiplex immunoassay was used to analyse 92 inflammation-related proteins [Olink Proteomics]. Bayesian analysis was used to identify proteins associated with increasing Rutgeerts score. Identified proteins were used in receiver operating characteristic [ROC] analysis to examine the ability to identify CD recurrence [Rutgeerts score ≥i2]. Existing single cell data were interrogated to further elucidate the role of the identified proteins. Results Data from 276 colonoscopies in 213 patients were available. Median time from surgery to first and second colonoscopy was 7 (interquartile range [IQR] 6–9) and 19 [IQR 16–23] months, respectively. Disease recurrence was evident at 60 [30%] first and 36 [49%] second colonoscopies. Of 14 proteins significantly associated with Rutgeerts score, the strongest signal was seen for CXCL9 and MMP1. Among patients on anti-tumour necrosis factor drugs, CXCL9 and CXCL11 were most strongly associated with Rutgeerts score. Both are CXCR3 ligands. Incorporation of identified proteins into ROC analysis improved the ability to identify disease recurrence as compared to C-reactive protein alone: area under the curve [AUC] 0.75 (95% confidence interval [CI]: 0.66–0.82] vs 0.64 [95% CI 0.56–0.72], p = 0.012. Single cell transcriptomic data provide evidence that innate immune cells are the primary source of the identified proteins. Conclusions CXCR3 ligands are associated with CD recurrence following ICR. Incorporation of novel blood-based candidate biomarkers may aid in identification of CD recurrence.

Published
2021

23. Human enteric viruses shape disease phenotype through divergent innate immunomodulation

Author

Kathie A. Mihindukulasuriya, Richard A. Hodin, Jean Paquette, Lindsay Droit, Sreehaas Digumarthi, Scot A. Handley, Philippe Goyette, Lai Ping Wong, John D. Rioux, Raza-Ur Rahman, Ruslan I. Sadreyev, Hajera Amatullah, Tahnee L. Saunders, Kate L. Jeffrey, and Fatemeh Adiliaghdam

Subjects
Innate immune system, Inflammation, MDA5, Biology, medicine.disease, Phenotype, Inflammatory bowel disease, digestive system diseases, Virus, Biomarker, Immunology, medicine, Human virome, medicine.symptom
Abstract

SummaryAltered enteric microorganisms in concert with host genetics shape inflammatory bowel disease (IBD) phenotypes. However, insight is limited to bacteria and fungi. We found virus like particles (VLPs) enriched from normal human colon resections, containing eukaryotic viruses and bacteriophages (collectively, the virome), actively elicited atypical anti-inflammatory innate immune programs. Conversely, IBD patient VLPs provoked inflammation, which was successfully dampened by healthy VLPs. The IBD colon tissue virome was perturbed, including enriched PicornovirusEnterovirus B,not previously observed in fecal virome studies. Mice with humanized healthy colon tissue viromes had attenuated intestinal inflammation while those with IBD-derived viromes exhibited exacerbated inflammation in a nucleic acid sensing-dependent fashion. Furthermore, there were detrimental consequences for IBD-associated MDA5 loss-of-function on patient intestinal epithelial cells exposed to healthy or IBD viromes. Our results demonstrate that innate recognition of either healthy or IBD human viromes autonomously influences disease phenotypes in IBD. Harnessing the virome may offer therapeutic and biomarker potential.One Sentence SummaryHuman viromes divergently shape host immunity and disease

Published
2021

24. Prostaglandins and calprotectin are genetically and functionally linked to the Inflammatory Bowel Diseases

Author

Mohamad, Karaky, Gabrielle, Boucher, Saraï, Mola, Sylvain, Foisy, Claudine, Beauchamp, Marie-Eve, Rivard, Melanie, Burnette, Hugues, Gosselin, Alain, Bitton, Guy, Charron, Philippe, Goyette, and John D, Rioux

Subjects
Lipopolysaccharides, Cancer Research, Induced Pluripotent Stem Cells, Inflammatory Bowel Diseases, Prostaglandins, Genetics, Humans, Prostaglandins I, Leukocyte L1 Antigen Complex, Molecular Biology, Genetics (clinical), Ecology, Evolution, Behavior and Systematics, Adenylyl Cyclases, Genome-Wide Association Study
Abstract

Background Genome wide association studies (GWAS) have identified and validated more than 200 genomic loci associated with the inflammatory bowel disease (IBD), although for most the causal gene remains unknown. Given the importance of myeloid cells in IBD pathogenesis, the current study aimed to uncover the role of genes within IBD genetic loci that are endogenously expressed in this cell lineage. Methods The open reading frames (ORF) of 42 genes from IBD-associated loci were expressed via lentiviral transfer in the THP-1 model of human monocytes and the impact of each of these on the cell’s transcriptome was analyzed using a RNA sequencing-based approach. We used a combination of genetic and pharmacologic approaches to validate our findings in the THP-1 line with further validation in human induced pluripotent stem cell (hiPSC)-derived-monocytes. Results This functional genomics screen provided evidence that genes in four IBD GWAS loci (PTGIR, ZBTB40, SLC39A11 and NFKB1) are involved in controlling S100A8 and S100A9 gene expression, which encode the two subunits of calprotectin (CP). We demonstrated that increasing PTGIR expression and/or stimulating PTGIR signaling resulted in increased CP expression in THP-1. This was further validated in hiPSC-derived monocytes. Conversely, knocking-down PTGIR endogenous expression and/or inhibiting PTGIR signaling led to decreased CP expression. These analyses were extended to the known IBD gene PTGER4, whereby its specific agonist also led to increased CP expression. Furthermore, we demonstrated that the PTGIR and PTGER4 mediated control of CP expression was dependent on signaling via adenylate cyclase and STAT3. Finally, we demonstrated that LPS-mediated increases in CP expression could be potentiated by agonists of PTGIR and PTGER4, and diminished by their antagonists. Conclusion Our results support a causal role for the PTGIR, PTGER4, ZBTB40, SLC39A11 and NFKB1 genes in IBD, with all five genes regulating the expression of CP in myeloid cells, as well as potential roles for the prostacyclin/prostaglandin biogenesis and signaling pathways in IBD susceptibility and pathogenesis.

Published
2022

25. Epigenetic reader SP140 loss of function drives Crohn’s disease due to uncontrolled macrophage topoisomerases

Author

Hajera Amatullah, Isabella Fraschilla, Sreehaas Digumarthi, Julie Huang, Fatemeh Adiliaghdam, Gracia Bonilla, Lai Ping Wong, Marie-Eve Rivard, Claudine Beauchamp, Virginie Mercier, Philippe Goyette, Ruslan I. Sadreyev, Robert M. Anthony, John D. Rioux, and Kate L. Jeffrey

Subjects
Proteomics, Mice, Crohn Disease, Gene Expression Regulation, Macrophages, Animals, Humans, Antigens, Nuclear, General Biochemistry, Genetics and Molecular Biology, Epigenesis, Genetic, Transcription Factors
Abstract

How mis-regulated chromatin directly impacts human immune disorders is poorly understood. Speckled Protein 140 (SP140) is an immune-restricted PHD and bromodomain-containing epigenetic "reader," and SP140 loss-of-function mutations associate with Crohn's disease (CD), multiple sclerosis (MS), and chronic lymphocytic leukemia (CLL). However, the relevance of these mutations and mechanisms underlying SP140-driven pathogenicity remains unexplored. Using a global proteomic strategy, we identified SP140 as a repressor of topoisomerases (TOPs) that maintains heterochromatin and macrophage fate. In humans and mice, SP140 loss resulted in unleashed TOP activity, de-repression of developmentally silenced genes, and ultimately defective microbe-inducible macrophage transcriptional programs and bacterial killing that drive intestinal pathology. Pharmacological inhibition of TOP1/2 rescued these defects. Furthermore, exacerbated colitis was restored with TOP1/2 inhibitors in Sp140

Published
2022

26. Sequencing of over 100,000 individuals identifies multiple genes and rare variants associated with Crohns disease susceptibility

Author

Schuum P, Daniel B. Graham, Sun D, Seksik P, David T. Okou, Daniel L. Rice, David J. Cutler, Martti Färkkilä, Liefferinckx C, Segal Aw, Andrew T. Chan, Denis Franchimont, Beecham A, Subra Kugathasan, Stacey Gabriel, Stefan Schreiber, Baras A, Kirschner Bs, Goerg S, Juozas Kupcinskas, Jukka Koskela, John C. Mansfield, Kyle Gettler, Devoto M, Dobes A, Debby Laukens, Richard H. Duerr, Myriam Mni, Loescher B, Cosnes J, Mengesha E, William A. Faubion, Joshua Lewis, Graham A. Heap, Voskuil, Christine Stevens, Pekow J, Lisa W. Datta, Adam P. Levine, Khalili H, O’Charoen S, Dan Turner, Nikolas Pontikos, Natalie J. Prescott, Inga Peter, Marc P. Hoeppner, Chung D, Mark S. Silverberg, Dodge S, Talin Haritunians, Moayyedi P, Winter Hs, John D. Rioux, Andre Franke, Holm H. Uhlig, Ferreira M, Matthew Solomonson, Sokol H, Damas Om, Ramnik J. Xavier, Horowitz Je, Iyer, Eija Hämäläinen, Avila B, Dawany N, Newberry R, Bernstein C, Shawky R, Benjamin Glaser, Alison Simmons, Mamta Giri, Bruce E. Sands, Ann E. Pulver, Yuan K, Abreu Mt, Gil Atzmon, Allez M, Young J, Verstockt S, Aarno Palotie, Hongyan Huang, Kimmo Kontula, Ellinghaus E, van der Meulen Ae, Ahmad T, Oldenburg B, Cyriel Y. Ponsioen, Daly A, Dermot P.B. McGovern, Jeffrey C. Barrett, Peter M. Irving, Miles Parkes, Jacob L. McCauley, Päivi Saavalainen, Pierik Mj, Alain Bitton, Guhan Venkataraman, Rinse K. Weersma, Schiff Er, Manuel A. Rivas, Harry Ostrer, Bokemeyer B, Judy H. Cho, Sandra May, Michel Georges, Isabelle Cleynen, Moran Cj, Laudes M, Beaugerie L, Laura Fachal, Nir Barzilai, Mikko Hiltunen, Somineni H, Stephan R. Targan, Skeiceviciene J, Kelsen J, Sartor Br, Christopher A. Lamb, Philippe Goyette, Steven R. Brant, Souad Rahmouni, Mark J. Daly, Sheikh Sz, Edouard Louis, Jalas C, Carl A. Anderson, Severine Vermeire, and Aleksejs Sazonovs

Subjects
Genetics, 0303 health sciences, education.field_of_study, Population, Susceptibility gene, Genome-wide association study, Disease, Biology, 3. Good health, 03 medical and health sciences, Disease susceptibility, 0302 clinical medicine, Disease risk, education, Gene, 030217 neurology & neurosurgery, 030304 developmental biology, Genetic association
Abstract

Genome-wide association studies (GWAS) have identified hundreds of loci associated with Crohns disease (CD), however, as with all complex diseases, deriving pathogenic mechanisms from these non-coding GWAS discoveries has been challenging. To complement GWAS and better define actionable biological targets, we analysed sequenced data from more than 30,000 CD patients and 80,000 population controls. We observe rare coding variants in established CD susceptibility genes as well as ten genes where coding variation directly implicates the gene in disease risk for the first time.

Published
2021

27. Serum Analyte Profiles Associated With Crohn’s Disease and Disease Location

Author

John D. Rioux, Geneviève Chabot-Roy, Christine Des Rosiers, Erin E. Hillhouse, Megan K. Levings, Alexandre Paradis, Lise Coderre, Richard H. Duerr, Steve R Brant, Mark Lazarev, Gabrielle Boucher, Judy H. Cho, L. Philip Schumm, Mark S. Silverberg, Alain Bitton, Dermot P.B. McGovern, and Sylvie Lesage

Subjects
Inflammation, Chemokine, Crohn's disease, biology, business.industry, Gastroenterology, Interleukin, Disease, medicine.disease, Interleukin-12, Gastrointestinal Microbiome, CXCL1, Immune system, Crohn Disease, Ileum, Immunology, biology.protein, medicine, Immunology and Allergy, CXCL9, Humans, medicine.symptom, Leading Off, business
Abstract

Background Crohn’s disease (CD) can affect any segment of the digestive tract but is most often localized in the ileal, ileocolonic, and colorectal regions of the intestines. It is believed that the chronic inflammation in CD is a result of an imbalance between the epithelial barrier, the immune system, and the intestinal microbiota. The aim of the study was to identify circulating markers associated with CD and/or disease location in CD patients. Methods We tested 49 cytokines, chemokines, and growth factors in serum samples from 300 patients with CD and 300 controls. After quality control, analyte levels were tested for association with CD and disease location. Results We identified 13 analytes that were higher in CD patients relative to healthy controls and that remained significant after conservative Bonferroni correction (P Conclusions Multiple serum analytes are elevated in CD. These implicate the involvement of multiple cell types from the immune, epithelial, and endothelial systems, suggesting that circulating analytes reflect the inflammatory processes that are ongoing within the gut. Moreover, the identification of distinct profiles according to disease location supports the existence of a biological difference between ileal and colonic CD, consistent with previous genetic and clinical observations.

Published
2021

28. Life-threatening arrhythmias with autosomal recessive TECRL variants

Author

Arthur A.M. Wilde, Janneke A.E. Kammeraad, A.K.M. Monwarul Islam, Kai Lee Yap, Elhadi H. Aburawi, Gregory Webster, Zahurul A. Bhuiyan, John D. Rioux, Marie A. Chaix, Lijian Xie, Tingting Xiao, Han Zhang, Stephanie F. Chandler, Alexander Ing, Cuilan Hou, Lihadh Al-Gazali, Zahidus Sayeed, Roger Foo, Pediatrics, Cardiology, and ACS - Heart failure & arrhythmias

Subjects
Adult, medicine.medical_specialty, Heterozygote, Adolescent, Long QT syndrome, 030204 cardiovascular system & hematology, Catecholaminergic polymorphic ventricular tachycardia, Sudden death, Asymptomatic, 03 medical and health sciences, Electrocardiography, Young Adult, 0302 clinical medicine, Clinical Research, Physiology (medical), Internal medicine, medicine, Humans, Ventricular fibrillation, Child, 030304 developmental biology, Retrospective Studies, 0303 health sciences, business.industry, Cardiac arrhythmia, Infant, Arrhythmias, Cardiac, Atenolol, medicine.disease, Long QT Syndrome, Death, Sudden, Cardiac, Paediatric, Child, Preschool, Cardiology, Tachycardia, Ventricular, Age of onset, medicine.symptom, Cardiology and Cardiovascular Medicine, business, medicine.drug
Abstract

Aims Sudden death and aborted sudden death have been observed in patients with biallelic variants in TECRL. However, phenotypes have only begun to be described and no data are available on medical therapy after long-term follow-up. Methods and results An international, multi-centre retrospective review was conducted. We report new cases associated with TECRL variants and long-term follow-up from previously published cases. We present 10 cases and 37 asymptomatic heterozygous carriers. Median age at onset of cardiac symptoms was 8 years (range 1–22 years) and cases were followed for an average of 10.3 years (standard deviation 8.3), right censored by death in three cases. All patients on metoprolol, bisoprolol, or atenolol were transitioned to nadolol or propranolol due to failure of therapy. Phenotypes typical of both long QT syndrome and catecholaminergic polymorphic ventricular tachycardia (CPVT) were observed. We also observed divergent phenotypes in some cases despite identical homozygous variants. None of 37 heterozygous family members had a cardiac phenotype. Conclusion Patients with biallelic pathogenic TECRL variants present with variable cardiac arrhythmia phenotypes, including those typical of long QT syndrome and CPVT. Nadolol and propranolol may be superior beta-blockers in this setting. No cardiac disease or sudden death was present in patients with a heterozygous genotype.

Published
2021

29. Leucine-rich repeat kinase-2 (LRRK2) modulates paraquat-induced inflammatory sickness and stress phenotype

Author

John D. Rioux, David Park, Christopher Rudyk Rudyk, and Derrick Gibbings

Subjects
Male, Paraquat, 0301 basic medicine, Genetically modified mouse, medicine.medical_specialty, Immunology, Mice, Transgenic, Context (language use), Inflammation, Leucine-Rich Repeat Serine-Threonine Protein Kinase-2, lcsh:RC346-429, Mice, 03 medical and health sciences, Cellular and Molecular Neuroscience, chemistry.chemical_compound, 0302 clinical medicine, Corticosterone, Internal medicine, Animals, Medicine, Parkinson’s, Cytokine, Inflammatory, lcsh:Neurology. Diseases of the nervous system, Mice, Knockout, Toxicity, Herbicides, business.industry, Research, General Neuroscience, LRRK2, nervous system diseases, Mice, Inbred C57BL, Phenotype, 030104 developmental biology, Endocrinology, Neurology, chemistry, Microglia, medicine.symptom, business, 030217 neurology & neurosurgery, Toxicant
Abstract

Background Leucine-rich repeat kinase 2 (LRRK2) is a common gene implicated in Parkinson’s disease (PD) and is also thought to be fundamentally involved in numerous immune functions. Thus, we assessed the role of LRRK2 in the context of the effects of the environmental toxicant, paraquat, that has been implicated in PD and is known to affect inflammatory processes. Methods Male LRRK2 knockout (KO) and transgenic mice bearing the G2019S LRRK2 mutation (aged 6–8 months) or their littermate controls were exposed to paraquat (two times per week for 3 weeks), and sickness measures, motivational scores, and total home-cage activity levels were assessed. Following sacrifice, western blot and ELISA assays were performed to see whether or not LRRK2 expression would alter processes related to plasticity, immune response processes, or the stress response. Results Paraquat-induced signs of sickness, inflammation (elevated IL-6), and peripheral toxicity (e.g., organ weight) were completely prevented by LRRK2 knockout. In fact, LRRK2 knockout dramatically reduced not only signs of illness, but also the motivational (nest building) and home-cage activity deficits induced by paraquat. Although LRRK2 deficiency did not affect the striatal BDNF reduction that was provoked by paraquat, it did blunt the corticosterone elevation induced by paraquat, raising the possibility that LRRK2 may modulate aspects of the HPA stress axis. Accordingly, we found that transgenic mice bearing the G2019S LRRK2 mutation had elevated basal corticosterone, along with diminished hippocampal 5-HT1A levels. Conclusion We are the first to show the importance of LRRK2 in the peripheral neurotoxic and stressor-like effects of paraquat. These data are consistent with LRRK2 playing a role in the general inflammatory tone and stressor effects induced by environmental toxicant exposure.

Published
2019

30. Innate Control of Tissue-Reparative Human Regulatory T Cells

Author

Megan K. Levings, Brian Bressler, James Pan, Katherine N. MacDonald, Avery J. Lam, Kimberly Morishita, Stephen C. Juvet, John D. Rioux, Anne M. Pesenacker, and Sachdev S. Sidhu

Subjects
Adult, Male, Regulatory T cell, medicine.medical_treatment, Immunology, chemical and pharmacologic phenomena, Biology, medicine.disease_cause, T-Lymphocytes, Regulatory, Autoimmunity, Cell therapy, 03 medical and health sciences, 0302 clinical medicine, Amphiregulin, Downregulation and upregulation, medicine, Humans, Immunology and Allergy, Cell Proliferation, Macrophages, Growth factor, hemic and immune systems, Interleukin-33, Interleukin-1 Receptor-Like 1 Protein, Immunity, Innate, Interleukin 33, Transplantation, medicine.anatomical_structure, Organ Specificity, Cancer research, Female, 030215 immunology
Abstract

Regulatory T cell (Treg) therapy is a potential curative approach for a variety of immune-mediated conditions, including autoimmunity and transplantation, in which there is pathological tissue damage. In mice, IL-33R (ST2)–expressing Tregs mediate tissue repair by producing the growth factor amphiregulin, but whether similar tissue-reparative Tregs exist in humans remains unclear. We show that human Tregs in blood and multiple tissue types produced amphiregulin, but this was neither a unique feature of Tregs nor selectively upregulated in tissues. Human Tregs in blood, tonsil, synovial fluid, colon, and lung tissues did not express ST2, so ST2+ Tregs were engineered via lentiviral-mediated overexpression, and their therapeutic potential for cell therapy was examined. Engineered ST2+ Tregs exhibited TCR-independent, IL-33–stimulated amphiregulin expression and a heightened ability to induce M2-like macrophages. The finding that amphiregulin-producing Tregs have a noneffector phenotype and are progressively lost upon TCR-induced proliferation and differentiation suggests that the tissue repair capacity of human Tregs may be an innate function that operates independently from their classical suppressive function.

Published
2019

34. IBD-associated G protein-coupled receptor 65 variant compromises signalling and impairs key functions involved in inflammation

Author

Virginie Mercier, Gabrielle Boucher, Dominic Devost, Kyla Bourque, Azadeh Alikashani, Claudine Beauchamp, Alain Bitton, Sylvain Foisy, Philippe Goyette, Guy Charron, Terence E. Hébert, and John D. Rioux

Subjects
Inflammation, HEK293 Cells, Inflammasomes, Interleukin-1beta, NLR Family, Pyrin Domain-Containing 3 Protein, Humans, Cell Biology, Inflammatory Bowel Diseases, Article, Receptors, G-Protein-Coupled
Abstract

BACKGROUND AND AIMS: Inflammatory bowel diseases (IBD) result in chronic inflammation of the gastrointestinal tract. Genetic studies have shown that the GPR65 gene, as well as its missense coding variant, GPR65*Ile231Leu, is associated with IBD. We aimed to define the signalling and biological pathways downstream of GPR65 activation and evaluate the impact of GPR65*231Leu on these. METHODS: We used HEK 293 cells stably expressing GPR65 and deficient for either Gα(s), Gα(q/11) or Gα(12/13), to define GPR65 signalling pathways, IBD patient biopsies and a panel of human tissues, primary immune cells and cell lines to determine biologic context, and genetic modulation of human THP-1-derived macrophages to examine the impact of GPR65 in bacterial phagocytosis and NLRP3 inflammasome activation. RESULTS: We confirmed that GPR65 signals via the Gα(s) pathway, leading to cAMP accumulation. GPR65 can also signal via the Gα(12/13) pathway leading to formation of stress fibers, actin remodelling and RhoA activation; all impaired by the IBD-associated GPR65*231Leu allele. Gene expression profiling revealed greater expression of GPR65 in biopsies from inflamed compared to non-inflamed tissues from IBD patients or control individuals, potentially explained by infiltration of inflammatory immune cells. Decreased GPR65 expression in THP-1-derived macrophages leads to impaired bacterial phagocytosis, increased NLRP3 inflammasome activation and IL-1β secretion in response to an inflammatory stimulus. CONCLUSIONS: We demonstrate that GPR65 exerts its effects through Gα(s)- and Gα(12/13)-mediated pathways, that the IBD-associated GPR65*231Leu allele has compromised interactions with Gα(12/13) and that KD of GPR65 leads to impaired bacterial phagocytosis and increased inflammatory signaling via the NLRP3 inflammasome. This work identifies a target for development of small molecule therapies.

Published
2022

35. Common and Rare Variant Prediction and Penetrance of IBD in a Large, Multi-ethnic, Health System-based Biobank Cohort

Author

Richard H Duerr, John D. Rioux, Rachel Levantovsky, Arden Moscati, M.S. Silverberg, Yuval Itan, Carl A. Anderson, Colleen C. Chasteau, Judy H. Cho, Dermot P McGovern, Scott B Snapper, Kyle Gettler, Steven R. Brant, Ujunwa M. Korie, Ling-Shiang Chuang, Subra Kugathasan, Mamta Giri, Suresh Venkateswaran, Nai Yun Hsu, Aleksejs Sazonovs, Mark J Daly, Yiming Wu, Institute for Molecular Medicine Finland, and University of Helsinki

Subjects
0301 basic medicine, Multifactorial Inheritance, VEO-IBD, LOCI, Genome-wide association study, Penetrance, Disease, PRS, 0302 clinical medicine, Crohn Disease, Risk Factors, Prevalence, Age of Onset, CHLOROQUINE, Genetics, RISK, education.field_of_study, Gastroenterology, Hispanic or Latino, ASSOCIATION, 3. Good health, Race Factors, Europe, Phenotype, 030211 gastroenterology & hepatology, LRBA, Population, IBD, Single-nucleotide polymorphism, Biology, Polymorphism, Single Nucleotide, Risk Assessment, White People, GENETIC ARCHITECTURE, 03 medical and health sciences, SNP, Humans, Genetic Predisposition to Disease, Allele, education, Hepatology, PRIMARY IMMUNODEFICIENCY DISEASES, United States, Black or African American, 030104 developmental biology, Case-Control Studies, Jews, 3121 General medicine, internal medicine and other clinical medicine, Colitis, Ulcerative, Genome-Wide Association Study, INFLAMMATORY-BOWEL-DISEASE
Abstract

BACKGROUND AND AIMS: Polygenic risk scores (PRS) may soon be used to predict inflammatory bowel disease (IBD) risk in prevention efforts. We leveraged exome-sequence and single nucleotide polymorphism (SNP) array data from 29,358 individuals in the multiethnic, randomly ascertained health system-based BioMe biobank to define effects of common and rare IBD variants on disease prediction and pathophysiology. METHODS: PRS were calculated from European, African American, and Ashkenazi Jewish (AJ) reference case-control studies, and a meta-GWAS run using all three association datasets. PRS were then combined using regression to assess which combination of scores best predicted IBD status in European, AJ, Hispanic, and African American cohorts in BioMe. Additionally, rare variants were assessed in genes associated with very early-onset IBD (VEO-IBD), by estimating genetic penetrance in each BioMe population. RESULTS: Combining risk scores based on association data from distinct ancestral populations improved IBD prediction for every population in BioMe and significantly improved prediction among European ancestry UK Biobank individuals. Lower predictive power for non-Europeans was observed, reflecting in part substantially lower African IBD case-control reference sizes. We replicated associations for two VEO-IBD genes, ADAM17 and LRBA, with high dominant model penetrance in BioMe. Autosomal recessive LRBA risk alleles are associated with severe, early-onset autoimmunity; we show that heterozygous carriage of an African-predominant LRBA protein-altering allele is associated with significantly decreased LRBA and CTLA-4 expression with T-cell activation. CONCLUSIONS: Greater genetic diversity in African populations improves prediction across populations, and generalizes some VEO-IBD genes. Increasing African American IBD case-collections should be prioritized to reduce health disparities and enhance pathophysiological insight.

Published
2021

36. Transethnic analysis of the human leukocyte antigen region for ulcerative colitis reveals not only shared but also ethnicity-specific disease associations

Author

Lisa W. Datta, Eun Suk Jung, John D. Rioux, Dermot P.B. McGovern, Naser Ebrahim Daryani, Kyuyoung Song, Yuta Fuyuno, Garima Juyal, Matthias Hübenthal, Ajit Sood, Gabrielle Boucher, Behrooz Z. Alizadeh, Tobias L. Lenz, Byong Duk Ye, Reza Malekzadeh, Soumya Raychaudhuri, Atsushi Takahashi, Siew C. Ng, Frauke Degenhardt, David Ellinghaus, Tom H. Karlsen, Sunny Hwong, Mareike Wendorff, Junji Umeno, Suk-Kyun Yang, Gabriele Mayr, Keiko Yamazaki, Motohiro Esaki, Steven R. Brant, Simonas Juzenas, Rinse K. Weersma, Michiaki Kubo, B.K. Thelma, Esther A. Torres, Eva Ellinghaus, John Schembri, Vandana Midha, Pierre Ellul, David T. Okou, Elisa Rosati, Subra Kugathasan, Jae Hee Cheon, Talin Haritunians, Hesham ElAbd, Myhunghee Hong, Shifteh Abedian, Homayon Vahedi, Stefan Schreiber, Stephen Leslie, Allan Motyer, Life Course Epidemiology (LCE), Real World Studies in PharmacoEpidemiology, -Genetics, -Economics and -Therapy (PEGET), and Groningen Institute for Gastro Intestinal Genetics and Immunology (3GI)

Subjects
AcademicSubjects/SCI01140, Linkage disequilibrium, Genotype, Human leukocyte antigen, Biology, Inflammatory bowel disease, Polymorphism, Single Nucleotide, Linkage Disequilibrium, Cohort Studies, 03 medical and health sciences, Gene Frequency, HLA Antigens, HLA-DQ Antigens, Genetics, medicine, Ethnicity, Humans, Genetic Predisposition to Disease, Allele, Molecular Biology, Allele frequency, Genetics (clinical), Alleles, Genetic Association Studies, 030304 developmental biology, Genetic association, 0303 health sciences, 030305 genetics & heredity, Haplotype, General Medicine, medicine.disease, Genetic architecture, Haplotypes, Colitis, Ulcerative, General Article, Peptides, HLA-DRB1 Chains, Protein Binding
Abstract

Inflammatory bowel disease (IBD) is a chronic inflammatory disease of the gut. Genetic association studies have identified the highly variable human leukocyte antigen (HLA) region as the strongest susceptibility locus for IBD and specifically DRB1*01:03 as a determining factor for ulcerative colitis (UC). However, for most of the association signal such as delineation could not be made because of tight structures of linkage disequilibrium within the HLA. The aim of this study was therefore to further characterize the HLA signal using a transethnic approach. We performed a comprehensive fine mapping of single HLA alleles in UC in a cohort of 9272 individuals with African American, East Asian, Puerto Rican, Indian and Iranian descent and 40 691 previously analyzed Caucasians, additionally analyzing whole HLA haplotypes. We computationally characterized the binding of associated HLA alleles to human self-peptides and analyzed the physicochemical properties of the HLA proteins and predicted self-peptidomes. Highlighting alleles of the HLA-DRB1*15 group and their correlated HLA-DQ-DR haplotypes, we not only identified consistent associations (regarding effects directions/magnitudes) across different ethnicities but also identified population-specific signals (regarding differences in allele frequencies). We observed that DRB1*01:03 is mostly present in individuals of Western European descent and hardly present in non-Caucasian individuals. We found peptides predicted to bind to risk HLA alleles to be rich in positively charged amino acids. We conclude that the HLA plays an important role for UC susceptibility across different ethnicities. This research further implicates specific features of peptides that are predicted to bind risk and protective HLA proteins.

Published
2021
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37. IMAGINE Network’s Mind And Gut Interactions Cohort (MAGIC) Study: a protocol for a prospective observational multicentre cohort study in inflammatory bowel disease and irritable bowel syndrome

Author

Elena F. Verdu, John N. Lavis, Sandra Zelinsky, Michael G. Surette, Laura E Targownik, John D. Rioux, Russell J. de Souza, Premysl Bercik, Charles N. Bernstein, Anthony R. Otley, Jennifer Cunningham, Deborah A. Marshall, Glenda MacQueen, Stephen Vanner, Karen Madsen, Paul Moayyedi, Levinus A. Dieleman, and Aida Fernandes

Subjects
Adult, Canada, medicine.medical_specialty, Adolescent, nutritional support, Gastroenterology and Hepatology, Disease, Inflammatory bowel disease, Cohort Studies, Irritable Bowel Syndrome, Young Adult, inflammatory bowel disease, Internal medicine, Humans, Medicine, Prospective Studies, Prospective cohort study, Irritable bowel syndrome, business.industry, microbiology, General Medicine, Inflammatory Bowel Diseases, medicine.disease, Comorbidity, functional bowel disorders, Gastrointestinal Microbiome, Observational Studies as Topic, depression & mood disorders, Cohort, Quality of Life, Observational study, business, Cohort study
Abstract

IntroductionGut microbiome and diet may be important in irritable bowel syndrome (IBS), inflammatory bowel disease (IBD) and comorbid psychiatric conditions, but the mechanisms are unclear. We will create a large cohort of patients with IBS, IBD and healthy controls, and follow them over time, collecting dietary and mental health information and biological samples, to assess their gastrointestinal (GI) and psychological symptoms in association with their diet, gut microbiome and metabolome.Methods and analysisThis 5-year observational prospective cohort study is recruiting 8000 participants from 15 Canadian centres. Persons with IBS who are 13 years of age and older or IBD ≥5 years will be recruited. Healthy controls will be recruited from the general public and from friends or relatives of those with IBD or IBS who do not have GI symptoms. Participants answer surveys and provide blood, urine and stool samples annually. Surveys assess disease activity, quality of life, physical pain, lifestyle factors, psychological status and diet. The main outcomes evaluated will be the association between the diet, inflammatory, genetic, microbiome and metabolomic profiles in those with IBD and IBS compared with healthy controls using multivariate logistic regression. We will also compare these profiles in those with active versus quiescent disease and those with and without psychological comorbidity.Ethics and disseminationApproval has been obtained from the institutional review boards of all centres taking part in the study. We will develop evidence-based knowledge translation initiatives for patients, clinicians and policymakers to disseminate results to relevant stakeholders.Trial registration number:NCT03131414

Published
2020

38. Trans-ethnic analysis of the human leukocyte antigen region for ulcerative colitis reveals shared but also ethnicity-specific disease associations

Author

Vandana Midha, Pierre Ellul, Keiko Yamazaki, John Schembri, Steven R. Brant, B.K. Thelma, Dermot P.B. McGovern, Talin Haritunians, Soumya Raychaudhuri, Naser Ebrahim Daryani, Tom H. Karlsen, Ajit Sood, Suk-Kyun Yang, Mareike Wendorff, Siew C. Ng, Yuta Fuyuno, Rinse K. Weersma, Kyuyoung Song, Motohiro Esaki, Reza Malekzadeh, John D. Rioux, Garima Juyal, Atsushi Takahashi, Byong Duk Ye, Matthias Hübenthal, Gabriele Mayr, Junji Umeno, Frauke Degenhardt, Sunny H. Wong, Eun Suk Jung, Tobias L. Lenz, Simonas Juzenas, Michiaki Kubo, Esther A. Torres, David Ellinghaus, Eva Ellinghaus, Gabrielle Boucher, Behrooz Z. Alizadeh, David T. Okou, Lisa W. Datta, Elisa Rosati, Subra Kugathasan, Jae Hee Cheon, Myhunghee Hong, Stefan Schreiber, Hesham ElAbd, Shifteh Abedian, Homayon Vahedi, Stephen Leslie, Allan Motyer, and Andre Franke

Subjects
Genetics, Linkage disequilibrium, Haplotype, medicine, Disease, Human leukocyte antigen, Allele, Biology, medicine.disease, Ulcerative colitis, Inflammatory bowel disease, Genetic association
Abstract

Inflammatory bowel disease (IBD) is a chronic inflammatory disease of the gut. Genetic association studies have identified the highly variable human leukocyte antigen (HLA) region as the strongest susceptibility locus for IBD, and specifically DRB1*01:03 as a determining factor for ulcerative colitis (UC). However, for most of the association signal such a delineation could not be made due to tight structures of linkage disequilibrium within the HLA. The aim of this study was therefore to further characterize the HLA signal using a trans-ethnic approach. We performed a comprehensive fine mapping of single HLA alleles in UC in a cohort of 9,272 individuals with African American, East Asian, Puerto Rican, Indian and Iranian descent and 40,691 previously analyzed Caucasians, additionally analyzing whole HLA haplotypes. We computationally characterized the binding of associated HLA alleles to human self-peptides and analysed the physico-chemical properties of the HLA proteins and predicted self-peptidomes. Highlighting alleles of the HLA-DRB1*15 group and their correlated HLA-DQ-DR haplotypes, we identified consistent associations across different ethnicities but also identified population-specific signals. We observed that DRB1*01:03 is mostly present in individuals of Western European descent and hardly present in non-Caucasian individuals. We found peptides predicted to bind to risk HLA alleles to be rich in positively charged amino acids such. We conclude that the HLA plays an important role for UC susceptibility across different ethnicities. This research further implicates specific features of peptides that are predicted to bind risk and protective HLA proteins.

Published
2020

39. Prevalence and Effect of Genetic Risk of Thromboembolic Disease in Inflammatory Bowel Disease

Author

Talin Haritunians, Christine Stevens, Shaohong Yang, Gregory J. Botwin, M.S. Silverberg, Dalin Li, Dermot P.B. McGovern, Judy H. Cho, Jonathan Braun, Richard H Duerr, Michelle Khrom, Atsushi Masamune, Philip Schumm, Mark J. Daly, Takeo Naito, Steven R. Brant, Lisa Abbou, Emebet Mengesha, and John D. Rioux

Subjects
0301 basic medicine, Adult, Male, medicine.medical_specialty, Multifactorial Inheritance, Single-nucleotide polymorphism, Thrombophilia, Inflammatory bowel disease, Risk Assessment, 03 medical and health sciences, 0302 clinical medicine, Risk Factors, Internal medicine, Thromboembolism, Exome Sequencing, Prevalence, Medicine, Humans, Genetic Predisposition to Disease, Genetic Testing, Genotyping, Exome sequencing, Aged, Crohn's disease, Hepatology, business.industry, Gastroenterology, Odds ratio, Middle Aged, medicine.disease, Inflammatory Bowel Diseases, Ulcerative colitis, Healthy Volunteers, 030104 developmental biology, Case-Control Studies, 030211 gastroenterology & hepatology, Female, business
Abstract

Background And Aims The largest cause of mortality in patients with inflammatory bowel disease (IBD) remains thromboembolic disease (TED). Recent reports have demonstrated that both monogenic and polygenic factors contribute to TED and 10% of healthy subjects are genetically at high risk for TED. Our aim was to utilize whole-exome sequencing and genome-wide genotyping to determine the proportion of IBD patients genetically at risk for TED and investigate the effect of genetic risk of TED in IBD. Methods The TED polygenic risk score was calculated from genome-wide genotyping. Thrombophilia pathogenic variants were extracted from whole-exome sequencing. In total, 792 IBD patients had both whole-exome sequencing and genotyping data. We defined patients at genetically high risk for TED if they had a high TED polygenic risk score or carried at least 1 thrombophilia pathogenic variant. Results We identified 122 of 792 IBD patients (15.4%) as genetically high risk for TED. Among 715 of 792 subjects whose documented TED status were available, 63 of the 715 patients (8.8%) had TED events. Genetic TED risk was significantly associated with increased TED event (odds ratio, 2.5; P = .0036). In addition, we confirmed an additive effect of monogenic and polygenic risk on TED (P = .0048). Patients with high TED genetic risk more frequently had thrombosis at multiple sites (78% vs 42%, odds ratio, 3.96; P = .048). Conclusions Genetic risk (both poly- and monogenic) was significantly associated with TED history. Our results suggest that genetic traits identify approximately 1 in 7 patients with IBD who will experience 2.5-fold or greater risk for TED.

Published
2020

40. Identifying novel high-impact rare disease-causing mutations, genes and pathways in exomes of Ashkenazi Jewish inflammatory bowel disease patients

Author

Dalin Li, Lee A. Denson, Talin Haritunians, Scott B. Snapper, Harry Ostrer, Aayushee Jain, Kyle Gettler, John D. Rioux, David Neil Cooper, Cigdem Sevim Bayrak, Yiming Wu, Ksenija Sabic, Peter D. Stenson, Subra Kugathasan, Mamta Giri, Dermot P.B. McGovern, Mark S. Silverberg, Patrick Maffucci, L. Philip Schumm, Steven R. Brant, Yuval Itan, Richard H. Duerr, Girish N. Nadkarni, Judy H. Cho, Tielman Van Vleck, and Mark J. Daly

Subjects
Genetics, 0303 health sciences, education.field_of_study, Population, Genome-wide association study, Disease, Biology, digestive system diseases, Ashkenazi jews, 3. Good health, 03 medical and health sciences, 0302 clinical medicine, Missing heritability problem, 030211 gastroenterology & hepatology, education, Exome sequencing, 030304 developmental biology, Genetic association, Rare disease
Abstract

Inflammatory bowel disease (IBD) is a group of chronic diseases, affecting different parts of the gastrointestinal tract, that mainly comprises Crohn’s Disease (CD) and Ulcerative Colitis (UC). Most IBD genomic research to date has involved genome-wide association studies (GWAS) of common genetic variants, mostly in Europeans, resulting in the identification of over 200 risk loci. The incidence of IBD in Ashkenazi Jews (AJ) is particularly high compared to other population groups and rare protein-coding variants are significantly enriched in AJ. These variants are expected to have a larger phenotypic effect and are hypothesized to complement the missing heritability that cannot be fully addressed by GWAS in IBD. Therefore, we genetically identified 4,974 AJs IBD cases and controls from whole exome sequencing (WES) data from the NIDDK IBD Genetics Consortium (IBDGC). We selected credible rare variants with high predicted impact, aggregated them into genes, and performed gene burden and pathway enrichment analyses to identify 7 novel plausible IBD-causing genes:NCF1, CES1, ICAM1, INPP5D, ABCB1, IL33andTLR4. We further perform bulk and single-cell RNA sequencing, demonstrating the likely relatedness of the novel genes to IBD. Importantly, we demonstrate that the rare and high impact genetic architecture of AJ adult IBD displays a significant overlap with very early onset IBD (VEOIBD) genetics. At the variant level, we performed Phenome-wide association studies (PheWAS) in the UK Biobank to replicate risk sites in IBD and reveal shared risk sites with other diseases. Finally, we showed that a polygenic risk score (PRS) has high power to differentiate AJ IBD cases from controls when using rare and high impact variants.

Published
2020

41. Associations of autozygosity with a broad range of human phenotypes

Author

Dennis O. Mook-Kanamori, Salma M. Wakil, Lisa R. Yanek, Dominique P.V. de Kleijn, Gert J. de Borst, Alison D. Murray, Kamran Guity, Vincent W. V. Jaddoe, Mario Pirastu, Carole Ober, Giuseppe Matullo, Charles N. Rotimi, Daniela Ruggiero, Teresa Tusié-Luna, Wolfgang Lieb, Chew-Kiat Heng, John R. B. Perry, Hortensia Moreno-Macías, Jie Zhou, John M. Starr, Juhani Junttila, Lei Yu, Danielle Posthuma, Marcus Dörr, Yingchang Lu, Jonathan P. Bradfield, Einat Granot-Hershkovitz, Karina Meidtner, Wouter van Rheenen, T Esko, Maris Alver, Wen-Jane Lee, Zhengming Chen, Jennifer A. Brody, Paolo Gasparini, Yii-Der Ida Chen, Cinzia Sala, Peter P. Pramstaller, Gauri Prasad, Nana Matoba, Natalie Terzikhan, Simonetta Guarrera, Bjarke Feenstra, Peter Vollenweider, Smeeta Shrestha, Yi-Jen Hung, Lilja Stefansdottir, David R. Weir, Felix R. Day, Antonietta Robino, Liang Zhang, Lluis Quintana-Murci, Nicholas J. Timpson, Robyn E Wootton, Xue W. Mei, Dharambir K. Sanghera, Gisli Masson, Debbie A Lawlor, Thomas Meitinger, Sharon L.R. Kardia, Peter K. Joshi, Frank J. A. van Rooij, Claude Bouchard, Cassandra N. Spracklen, Ken K. Ong, Taulant Muka, Guanjie Chen, Laura J. Scott, Walter Palmas, Daniel I. Chasman, Sarah E. Medland, Krista Fischer, Blair H. Smith, Jon K. Sigurdsson, Leon Straker, Clara Viberti, Yuan Shi, Louis Pérusse, Peter J. van der Most, Timo Tõnis Sikka, Chris Haley, Kuang Lin, Leif Groop, Hester M. den Ruijter, Hakon Hakonarson, Masato Akiyama, Stephan J. L. Bakker, Sonja I. Berndt, Jeffery R. O'Connell, Cisca Wijmenga, Daniele Cusi, Lorena Orozco, Kristjan H. S. Moore, Kevin Sandow, Stephen S. Rich, Stephanie J. Loomis, George Davey Smith, Cornelia M. van Duijn, Sharvari Rahul Shukla, Agnar Helgason, Thorsten Kessler, Anuj Goel, Dan Mason, David W. Clark, James S. Pankow, Simona Vaccargiu, Uwe Völker, Tamara B. Harris, Matthew A. Allison, Clicerio Gonzalez, Sarju Ralhan, I-Te Lee, Matthias Laudes, Yen-Feng Chiu, Neil Poulter, Benjamin Lehne, John Wright, Lawrence F. Bielak, Philip L. De Jager, Reinhold Schmidt, Ya Xing Wang, Matthias Nauck, Diana L. Cousminer, Patrick Deelen, Ani Manichaikul, Stephen J. Chanock, Anders Hamsten, Barry I. Freedman, Gudmar Thorleifsson, Peter Kraft, Ozren Polasek, Jie Yao, Yoshinori Murakami, Paul M. Ridker, Anubha Mahajan, Struan F.A. Grant, Claudia Schurmann, Bjarni Gunnarsson, Catriona L. K. Barnes, Jessica van Setten, Sandosh Padmanabhan, Alena Stančáková, Markus M. Lerch, Anuradha Jagadeesan, Franco Giulianini, Daniel F. Gudbjartsson, Dwaipayan Bharadwaj, Shengchao Alfred Li, Peter S. Sever, Trevor A. Mori, Albertine J. Oldehinkel, Koichi Matsuda, Xueling Sim, Evangelos Evangelou, André G. Uitterlinden, Pekka Jousilahti, Yukihide Momozawa, Ioanna Tzoulaki, Chao A. Hsiung, Ginevra Biino, Murielle Bochud, Hannele Mattsson, Ilja M. Nolte, Sarah H. Wild, Patricia B. Munroe, Jianjun Liu, Bruce M. Psaty, Giriraj R. Chandak, Masahiro Kanai, Tony R. Merriman, Teemu Palviainen, Rodney A. Lea, Janie Corley, Nicholas J. Wareham, Alan B. Zonderman, Makoto Hirata, Matthew J. Bixley, Caroline Hayward, Nora Franceschini, Kristel R van Eijk, Etienne Patin, Daniel Shriner, Niek Verweij, Xiuqing Guo, Fredrik Karpe, Ruth J. F. Loos, Tiinamaija Tuomi, Ashley van der Spek, Patricia A. Peyser, Jessica D. Faul, Christian Fuchsberger, David Cesarini, Alex S. F. Doney, Janine F. Felix, Cornelius A. Rietveld, Jagadish Vangipurapu, Tanguy Corre, Line Skotte, Rajkumar Dorajoo, Catherine Igartua, Meena Kumari, Nona Sotoodehnia, Leonard H. van den Berg, Najaf Amin, Dale R. Nyholt, Harry Campbell, Massimiliano Cocca, Scott D. Gordon, Patrik K. E. Magnusson, John C. Chambers, Traci M. Bartz, Mike A. Nalls, Tin Aung, Nduna Dzimiri, Colin N. A. Palmer, Rob M. van Dam, Johanna Kuusisto, Russell P. Tracy, Anna Damulina, Pierre-Emmanuel Morange, Sylvain Foisy, Jing Hua Zhao, Nicholas G. Martin, Ching-Yu Cheng, Mariaelisa Graff, Rashmi B. Prasad, Alice Stanton, David-Alexandre Trégouët, Yu Guo, Helen R. Warren, Lyn R. Griffiths, Weihua Meng, Annika Tillander, Christa Meisinger, Albert V. Smith, Mark I. McCarthy, Jingyun Yang, Marine Germain, Neil Small, Linda Broer, Vilmundur Gudnason, Gunnar K. Pálsson, Michele K. Evans, Alexander Teumer, Mark J. Caulfield, Giorgia Girotto, Thomas Lumley, Tinca J. C. Polderman, Wei Zhao, Carlos A. Aguilar-Salinas, Jari Lahti, Matthew L. Albert, Yechiel Friedlander, Veikko Salomaa, Iona Y Millwood, Jan H. Veldink, Archie Campbell, Andres Metspalu, Ulf Gyllensten, Grant W. Montgomery, Veronique Vitart, Jai Rup Singh, Saima Afaq, Alan R. Shuldiner, Miao-Li Chee, Adebowale Adeyemo, Jennifer A. Smith, David A. van Heel, Jaspal S. Kooner, Daniela Toniolo, Cristian Pattaro, Jerome I. Rotter, John Whitfield, Melissa C. Smart, Kari E. North, Salman M. Tajuddin, Tallapragada Divya Sri Priyanka, Christopher A. Haiman, Diane M. Becker, Bernhard K. Krämer, Paul Elliott, Lihua Wang, He Gao, Patrick Sulem, Jinyan Huang, Chiea Chuen Khor, Ruifang Li-Gao, Åsa Johansson, Winfried März, Shai Carmi, Ilaria Gandin, Eric Boerwinkle, Gardar Sveinbjornsson, Saskia P. Hagenaars, Sander W. van der Laan, Gerard Pasterkamp, E-Shyong Tai, Hagit Hochner, Yih Chung Tham, Kent D. Taylor, Kari Stefansson, Matt J. Neville, Craig E. Pennell, Yanchun Bao, Annelot M. Dekker, Helena Schmidt, Mehdi Hedayati, Joshua Elliott, Ian J. Deary, Iris E. Jansen, Judith B. Borja, Edith Hofer, Martin Gögele, Igor Rudan, Lude Franke, Matthias Munz, Folkert W. Asselbergs, Bengt Sennblad, Imo Hofer, John D. Rioux, Pim van der Harst, Bahareh Sedaghati-khayat, Giovanni Cugliari, Morris A. Swertz, Francine Grodstein, Erwin P. Bottinger, Carol A. Wang, Andre Franke, Brian F. Meyer, Adele M. Taylor, Klodian Dhana, Jian'an Luan, Constance Turman, Robert A. Scott, May E. Montasser, Alison Pattie, Marco Brumat, Liming Li, Heiner Boeing, Karen L. Mohlke, Clemens Baumbach, Bishwa Raj Sapkota, Unnur Thorsteinsdottir, Naveed Sattar, Amy R. Bentley, Matthias B. Schulze, Ivana Kolcic, Stella Trompet, Sarah E. Harris, Ayo P. Doumatey, Charumathi Sabanayagam, David Eccles, Mary F. Feitosa, Jost B. Jonas, Massimo Mezzavilla, Mark O. Goodarzi, David Ellinghaus, Heribert Schunkert, Christian Gieger, Heikki V. Huikuri, Lingyao Zeng, Johan G. Eriksson, Woon-Puay Koh, Yucheng Jia, Gurpreet Singh Wander, James F. Wilson, Torgny Karlsson, Steven C. Hunt, Weihua Zhang, Maria Pina Concas, Zoltán Kutalik, Rebecca Rohde, Chittaranjan S. Yajnik, Yasaman Saba, Dabeeru C. Rao, Robin G. Walters, Reedik Mägi, Marie Loh, Eero Vuoksimaa, Josyf C. Mychaleckyj, Katri Räikkönen, Philippe Goyette, M. Arfan Ikram, Alicia Huerta-Chagoya, David J. Porteous, Teresa Nutile, J. Wouter Jukema, Noha A. Yousri, Yoichiro Kamatani, Maryam S. Daneshpour, Babette S. Zemel, Rona J. Strawbridge, Tien Yin Wong, Claudia Langenberg, Amy Moore, Marcus E. Kleber, Fereidoun Azizi, Avner Halevy, Erika Salvi, Francis S. Collins, Markku Laakso, Tim Kacprowski, S. Sunna Ebenesersdóttir, William R. Scott, Michael Boehnke, Jin-Fang Chai, Markus Perola, Nicola Pirastu, Wayne Huey-Herng Sheu, Robert Karlsson, Lenore J. Launer, Lili Milani, Renée de Mutsert, Fernando Rivadeneira, David A. Bennett, Nicola D. Kerrison, Paolo Manunta, Graciela E. Delgado, Magnus Johannesson, Carolina Medina-Gomez, Alanna C. Morrison, Kay-Tee Khaw, Jian-Min Yuan, Jaakko Kaprio, Melanie Waldenberger, Ralf Ewert, Hugoline G. de Haan, Andrew A. Hicks, Yukinori Okada, Maria Sabater-Lleal, Marilyn C. Cornelis, Stephanie J. London, Federica Rizzi, Jeanette Erdmann, Marina Ciullo, Michiaki Kubo, University of Edinburgh, Broad Institute of MIT and Harvard (BROAD INSTITUTE), Harvard Medical School [Boston] (HMS)-Massachusetts Institute of Technology (MIT)-Massachusetts General Hospital [Boston], Osaka University Graduate School of Medicine, Laboratory for Cardiovascular Genomics and Informatics [Yokohama] (RIKEN IMS), RIKEN Center for Integrative Medical Sciences [Yokohama] (RIKEN IMS), RIKEN - Institute of Physical and Chemical Research [Japon] (RIKEN)-RIKEN - Institute of Physical and Chemical Research [Japon] (RIKEN), deCODE genetics [Reykjavik], Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, UK (BIHR), Area Science Park, Università degli studi di Trieste = University of Trieste, MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke's Hospital, Interfaculty Institute for Genetics and Functional Genomics, Universität Greifswald - University of Greifswald, Harbor UCLA Medical Center [Torrance, Ca.], Division of Preventive Medicine, Brigham and Women's Hospital, Boston, MA, Department of Electrical and Computer Engineering [Waterloo] (ECE), University of Waterloo [Waterloo], Department of Medical Epidemiology and Biostatistics (MEB), Karolinska Institutet [Stockholm], Institute of Pop. Genetics, CNR, Sassari, Shardna life science Pula Cagliari, Swiss Institute of Bioinformatics [Lausanne] (SIB), Université de Lausanne = University of Lausanne (UNIL), Medstar Research Institute, Florida State University [Tallahassee] (FSU), University Medical Center [Utrecht], Centre for Population Health Sciences, Unité de Recherche sur les Maladies Cardiovasculaires, du Métabolisme et de la Nutrition = Research Unit on Cardiovascular and Metabolic Diseases (ICAN), Université Pierre et Marie Curie - Paris 6 (UPMC)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), California State University [Sacramento], Department of Thrombosis and Haemostasis, Leiden University Medical Center (LUMC), Universiteit Leiden-Universiteit Leiden, Medical University Graz, Department of Neurology, Alzheimer Centre, VU Medical Centre, Amsterdam, Vth Department of Medicine (Nephrology, Hypertensiology, Endocrinology, Diabetology, Rheumatology), Medical Faculty of Mannheim, University of Heidelberg, Heidelberg, Frederick National Laboratory for Cancer Research (FNLCR), Wellcome Trust Centre of Human Genetics, University of Oxford, Department of Epidemiology, German Institute of Human Nutrition, University Medical Center Groningen [Groningen] (UMCG), Institute of Genetics and Biophysics, National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR), Department of Medicine, Surgery, and Dentistry, University of Milano, Icelandic Heart Association, Kopavogur, Iceland., Department of Epidemiology [Rotterdam], Erasmus University Medical Center [Rotterdam] (Erasmus MC), University of Glasgow, Department of Cardiology, Leiden University Medical Center, Leiden, Program in Medical and Population Genetics, The Broad Institute of MIT and Harvard, Cambridge, MA, Queen Mary University of London (QMUL), General Internal Medicine, Johns Hopkins School of Medicine, Johns Hopkins University School of Medicine [Baltimore], Institut de biologie moléculaire des plantes (IBMP), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Immunobiologie des Cellules dendritiques, Institut Pasteur [Paris] (IP)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre de Recherche Translationnelle - Center for Translational Science (CRT), Institut Pasteur [Paris] (IP), Genentech, Inc., Genentech, Inc. [San Francisco], University of Tartu, Duke-NUS Medical School [Singapore], Deutsches Institut für Ernährungsforschung Potsdam-Rehbrücke (DifE), Leibniz Association, Human Genome Sequencing Center, Baylor College of Medicine, Baylor College of Medicine (BCM), Baylor University-Baylor University, University of San Carlos, Office of Population Studies Foundation, Icahn School of Medicine at Mount Sinai [New York] (MSSM), King‘s College London, Division of Cancer Epidemiology and Genetics, National Cancer Institute [Bethesda] (NCI-NIH), National Institutes of Health [Bethesda] (NIH)-National Institutes of Health [Bethesda] (NIH), University of Oxford, Vth Department of Medicine (Nephrology, Hypertensiology, Endocrinology, Diabetology, Rheumatology), Medical Faculty of Mannheim, University of Heidelberg, Division of Molecular & Clinical Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, Department of Internal Medicine B, University Medicine Greifswald, Greifswald, University of Chicago, University of Huddersfield, Infectious diseases division, Department of internal medicine, Washington University in Saint Louis (WUSTL), Section on Nephrology [Winston-Salem, NC, USA] (Department of Internal Medicine), Wake Forest School of Medicine [Winston-Salem], Wake Forest Baptist Medical Center-Wake Forest Baptist Medical Center, Radcliffe Department of Medicine [Oxford], Harvard School of Public Health, Kunming University of Science and Technology (KMUST), Sans affiliation, University of Southern California (USC), National Institute on Aging [Bethesda, USA] (NIA), National Institutes of Health [Bethesda] (NIH), Centre National de Génotypage (CNG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), MRC Centrer for Nutritional Epidemiology and Cancer Prevention and Survival, University of Cambridge [UK] (CAM), National University of Singapore (NUS), Experimental Cardiology Laboratory (ECL), Unirversity Medical Center, Department of Medical Statistics, Epidemiology and Medical Informatics, University of Zagreb, Department of Medical Genetics, Department of Medicine, University of Eastern Finland-Kuopio University Hospital, MRC Epidemiology Unit, University of Cambridge [UK] (CAM)-Institute of Metabolic Science, Capital Normal University [Beijing], Saw Swee Hock School of Public Health, National Institute for Environmental Health Sciences Research Triangle Park, Brown University, MRC Epidemiology Unit, Institute of Metabolic Science, University of Cambridge School of Clinical Medicine, Cambridge, Toyota Research Institute, Helmholtz Zentrum München = German Research Center for Environmental Health, Department of Chemistry and Biochemistry [Boulder], University of Colorado [Boulder], Centre recherche en CardioVasculaire et Nutrition = Center for CardioVascular and Nutrition research (C2VN), Aix Marseille Université (AMU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Hôpital de la Timone [CHU - APHM] (TIMONE), Metacohorts Consortium, Universiteit Leiden, Institute of Clinical Chemistry and Laboratory Medicine, University of Groningen [Groningen], Medical Research Concil Epidemiology Unit, Institute of Medical Science, Faculty of Medicine, Genetics and Pathology, Imperial College London, Génétique Evolutive Humaine - Human Evolutionary Genetics, Institut Pasteur [Paris] (IP)-Centre National de la Recherche Scientifique (CNRS), Centre de Bioinformatique, Biostatistique et Biologie Intégrative (C3BI), Brigham and Women's Hospital [Boston], Erasmus University Rotterdam, Department of Chronic Disease Prevention, National Institute for Health and Welfare [Helsinki], Department of Biostatistics and Center for Statistical Genetics, University of Michigan [Ann Arbor], University of Michigan System-University of Michigan System-School of public health, The University of Hong Kong (HKU)-The University of Hong Kong (HKU), Stockholm Bioinformatics Center (SBC), Stockholm University, Department of Cardiology, Division Heart and Lungs, University Medical Center Utrecht, University of Utrecht, Utrecht, INRH, Department of Genetics, Los Angeles Biomedical Research Institute (LA BioMed), Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán - National Institute of Medical Science and Nutrition Salvador Zubiran [Mexico], Western General Hospital, German Research Center for Environmental Health - Helmholtz Center München (GmbH), Medical Research Council, Division of Cancer Control and Population Sciences, University of Pittsburgh Cancer Institute-University of Pittsburgh Graduate School of Public Health, Zhengzhou University of Light Industry, Department of Electrical and Electronic Engineering [Niigata Univ.], Niigata University, Genetic Epidemiology Unit, University College of London [London] (UCL), Aston Business School, Aston University [Birmingham], Division of Cancer Epidemiology and Genetics [Bethesda, MD, États-Unis], Centre Hospitalier Universitaire Vaudois (CHUV), Pennington Biomedical Research Center, University of Washington [Seattle], Guy's and St Thomas' Hospitals, Northwestern Polytechnical University [Xi'an] (NPU), Department of Social Medicine, University of Bristol [Bristol], Department of Genomics of Common Disease [London, UK], Imperial College London-Hammersmith Hospital NHS Imperial College Healthcare, Department of Internal Medicine, Institute of Clinical Molecular Biology, Kiel University, Medizinische Klinik II, Universität zu Lübeck = University of Lübeck [Lübeck], Clinical and Molecular Epidemiology Unit, Department of Hygiene and Epidemiology, University of Ioannina, Institute for Social Research, University of Michigan System-University of Michigan System, Division of Statistical Genomics, Washington University School of Medicine, Institute for Clinical Molecular Biology, Christian-Albrechts-Universität zu Kiel (CAU), Department of Physics, RISSC-Lab-University of Naples Federico II = Università degli studi di Napoli Federico II, Lund University [Lund], Icelandic Heart Association, Heart Preventive Clinic and Research Institute, The Center for Applied Genomics, Children’s Hospital of Philadelphia (CHOP ), Génétique moléculaire de la neurotransmission et des processus neurodégénératifs (LGMNPN), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Medical Research Center Oulu, University of Oulu, University of Utah School of Medicine [Salt Lake City], The Generation R Study, Pediatrics, Epidemiology, Center for Translational and Computational Neuroimmunology [New York, NY, États-Unis] (CTCN), Department of Neurology [New York, NY, États-Unis], Columbia University Medical Center (CUMC), Columbia University [New York]-Columbia University [New York]-Columbia University Medical Center (CUMC), Columbia University [New York]-Columbia University [New York], Universität Heidelberg [Heidelberg] = Heidelberg University, Interuniversity Cardiology Institute Netherlands, School of Public Health, University of Michigan [Dearborn], Department of Epidemiology and Public Health, University of Kuopio, Helsingin yliopisto = Helsingfors universitet = University of Helsinki, Institute of Epidemiology and Biobank PopGen, Department of Biostatistics, University of Washington, Universidad Complutense de Madrid = Complutense University of Madrid [Madrid] (UCM), Clinical Institute of Medical and Chemical Laboratory Diagnostics, Karl-Franzens-Universität Graz, Department of Genetics, Biology and Biochemistry, Università degli studi di Torino = University of Turin (UNITO), Oxford Centre for Diabetes, Endocrinology and Metabolism (OCDEM), QIMR Berghofer Medical Research Institute, University of North Carolina [Chapel Hill] (UNC), University of North Carolina System (UNC)-University of North Carolina System (UNC), University of North Carolina System (UNC)-University of North Carolina System (UNC)-UNC Gillings School of Global Public Health-Carolina Center for Genome Sciences, University of Illinois [Chicago] (UIC), University of Illinois System, Experimental Cardiology Laboratory, Genetic Epidemiology and Clinical Research Group, Umea University Hospital, Functional Genomics, Erasmus Medical Centre, National Human Genome Research Institute (NHGRI), School of Medicine [Los Angeles], University of California [Los Angeles] (UCLA), University of California (UC)-University of California (UC), Department of Pathological Biochemistry, Royal Infirmary, German Institute of Human Nutrition Potsdam-Rehbrücke (DIfE), Institute of Metabolic Science, MRC, University of Maryland School of Medicine [Baltimore, MD, USA], Centre for Molecular Epidemiology, Centre for Causal Analyses in Translational Epidemiology, University of Bristol [Bristol]-Medical Research Council, IRCCS San Raffaele Scientific Institute [Milan, Italie], U937, Génomique cardiovasculaire, Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM), Bordeaux population health (BPH), Université de Bordeaux (UB)-Institut de Santé Publique, d'Épidémiologie et de Développement (ISPED)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre Hospitalier Universitaire Vaudois [Lausanne] (CHUV), University of Michigan System, HMNC Brain Health, Singapore Eye Research Institute, Partenaires INRAE, Institut d'Électronique et des Technologies du numéRique (IETR), Université de Nantes (UN)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Institute for Molecular Medicine Finland [Helsinki] (FIMM), Helsinki Institute of Life Science (HiLIFE), Helsingin yliopisto = Helsingfors universitet = University of Helsinki-Helsingin yliopisto = Helsingfors universitet = University of Helsinki, Department of Psychiatry and Psychotherapy, Rheinische Friedrich-Wilhelms-Universität Bonn, University of Groningen, Department of Genomics of Common Disease, Department of Microbiology, The Freeman Hospital, Department Biostatistics University of North Carolina, Complex Trait Genetics, Amsterdam Neuroscience - Complex Trait Genetics, Clark, D. W., Okada, Y., Moore, K. H. S., Mason, D., Pirastu, N., Gandin, I., Mattsson, H., Barnes, C. L. K., Lin, K., Zhao, J. H., Deelen, P., Rohde, R., Schurmann, C., Guo, X., Giulianini, F., Zhang, W., Medina-Gomez, C., Karlsson, R., Bao, Y., Bartz, T. M., Baumbach, C., Biino, G., Bixley, M. J., Brumat, M., Chai, J. -F., Corre, T., Cousminer, D. L., Dekker, A. M., Eccles, D. A., van Eijk, K. R., Fuchsberger, C., Gao, H., Germain, M., Gordon, S. D., de Haan, H. G., Harris, S. E., Hofer, E., Huerta-Chagoya, A., Igartua, C., Jansen, I. E., Jia, Y., Kacprowski, T., Karlsson, T., Kleber, M. E., Li, S. A., Li-Gao, R., Mahajan, A., Matsuda, K., Meidtner, K., Meng, W., Montasser, M. E., van der Most, P. J., Munz, M., Nutile, T., Palviainen, T., Prasad, G., Prasad, R. B., Priyanka, T. D. S., Rizzi, F., Salvi, E., Sapkota, B. R., Shriner, D., Skotte, L., Smart, M. C., Smith, A. V., van der Spek, A., Spracklen, C. N., Strawbridge, R. J., Tajuddin, S. M., Trompet, S., Turman, C., Verweij, N., Viberti, C., Wang, L., Warren, H. R., Wootton, R. E., Yanek, L. R., Yao, J., Yousri, N. A., Zhao, W., Adeyemo, A. A., Afaq, S., Aguilar-Salinas, C. A., Akiyama, M., Albert, M. L., Allison, M. A., Alver, M., Aung, T., Azizi, F., Bentley, A. R., Boeing, H., Boerwinkle, E., Borja, J. B., de Borst, G. J., Bottinger, E. P., Broer, L., Campbell, H., Chanock, S., Chee, M. -L., Chen, G., Chen, Y. -D. I., Chen, Z., Chiu, Y. -F., Cocca, M., Collins, F. S., Concas, M. P., Corley, J., Cugliari, G., van Dam, R. M., Damulina, A., Daneshpour, M. S., Day, F. R., Delgado, G. E., Dhana, K., Doney, A. S. F., Dorr, M., Doumatey, A. P., Dzimiri, N., Ebenesersdottir, S. S., Elliott, J., Elliott, P., Ewert, R., Felix, J. F., Fischer, K., Freedman, B. I., Girotto, G., Goel, A., Gogele, M., Goodarzi, M. O., Graff, M., Granot-Hershkovitz, E., Grodstein, F., Guarrera, S., Gudbjartsson, D. F., Guity, K., Gunnarsson, B., Guo, Y., Hagenaars, S. P., Haiman, C. A., Halevy, A., Harris, T. B., Hedayati, M., van Heel, D. A., Hirata, M., Hofer, I., Hsiung, C. A., Huang, J., Hung, Y. -J., Ikram, M. A., Jagadeesan, A., Jousilahti, P., Kamatani, Y., Kanai, M., Kerrison, N. D., Kessler, T., Khaw, K. -T., Khor, C. C., de Kleijn, D. P. V., Koh, W. -P., Kolcic, I., Kraft, P., Kramer, B. K., Kutalik, Z., Kuusisto, J., Langenberg, C., Launer, L. J., Lawlor, D. A., Lee, I. -T., Lee, W. -J., Lerch, M. M., Li, L., Liu, J., Loh, M., London, S. J., Loomis, S., Lu, Y., Luan, J., Magi, R., Manichaikul, A. W., Manunta, P., Masson, G., Matoba, N., Mei, X. W., Meisinger, C., Meitinger, T., Mezzavilla, M., Milani, L., Millwood, I. Y., Momozawa, Y., Moore, A., Morange, P. -E., Moreno-Macias, H., Mori, T. A., Morrison, A. C., Muka, T., Murakami, Y., Murray, A. D., de Mutsert, R., Mychaleckyj, J. C., Nalls, M. A., Nauck, M., Neville, M. J., Nolte, I. M., Ong, K. K., Orozco, L., Padmanabhan, S., Palsson, G., Pankow, J. S., Pattaro, C., Pattie, A., Polasek, O., Poulter, N., Pramstaller, P. P., Quintana-Murci, L., Raikkonen, K., Ralhan, S., Rao, D. C., van Rheenen, W., Rich, S. S., Ridker, P. M., Rietveld, C. A., Robino, A., van Rooij, F. J. A., Ruggiero, D., Saba, Y., Sabanayagam, C., Sabater-Lleal, M., Sala, C. F., Salomaa, V., Sandow, K., Schmidt, H., Scott, L. J., Scott, W. R., Sedaghati-Khayat, B., Sennblad, B., van Setten, J., Sever, P. J., Sheu, W. H. -H., Shi, Y., Shrestha, S., Shukla, S. R., Sigurdsson, J. K., Sikka, T. T., Singh, J. R., Smith, B. H., Stancakova, A., Stanton, A., Starr, J. M., Stefansdottir, L., Straker, L., Sulem, P., Sveinbjornsson, G., Swertz, M. A., Taylor, A. M., Taylor, K. D., Terzikhan, N., Tham, Y. -C., Thorleifsson, G., Thorsteinsdottir, U., Tillander, A., Tracy, R. P., Tusie-Luna, T., Tzoulaki, I., Vaccargiu, S., Vangipurapu, J., Veldink, J. H., Vitart, V., Volker, U., Vuoksimaa, E., Wakil, S. M., Waldenberger, M., Wander, G. S., Wang, Y. X., Wareham, N. J., Wild, S., Yajnik, C. S., Yuan, J. -M., Zeng, L., Zhang, L., Zhou, J., Amin, N., Asselbergs, F. W., Bakker, S. J. L., Becker, D. M., Lehne, B., Bennett, D. A., van den Berg, L. H., Berndt, S. I., Bharadwaj, D., Bielak, L. F., Bochud, M., Boehnke, M., Bouchard, C., Bradfield, J. P., Brody, J. A., Campbell, A., Carmi, S., Caulfield, M. J., Cesarini, D., Chambers, J. C., Chandak, G. R., Cheng, C. -Y., Ciullo, M., Cornelis, M., Cusi, D., Smith, G. D., Deary, I. J., Dorajoo, R., van Duijn, C. M., Ellinghaus, D., Erdmann, J., Eriksson, J. G., Evangelou, E., Evans, M. K., Faul, J. D., Feenstra, B., Feitosa, M., Foisy, S., Franke, A., Friedlander, Y., Gasparini, P., Gieger, C., Gonzalez, C., Goyette, P., Grant, S. F. A., Griffiths, L. R., Groop, L., Gudnason, V., Gyllensten, U., Hakonarson, H., Hamsten, A., van der Harst, P., Heng, C. -K., Hicks, A. A., Hochner, H., Huikuri, H., Hunt, S. C., Jaddoe, V. W. V., De Jager, P. L., Johannesson, M., Johansson, A., Jonas, J. B., Jukema, J. W., Junttila, J., Kaprio, J., Kardia, S. L. R., Karpe, F., Kumari, M., Laakso, M., van der Laan, S. W., Lahti, J., Laudes, M., Lea, R. A., Lieb, W., Lumley, T., Martin, N. G., Marz, W., Matullo, G., Mccarthy, M. I., Medland, S. E., Merriman, T. R., Metspalu, A., Meyer, B. F., Mohlke, K. L., Montgomery, G. W., Mook-Kanamori, D., Munroe, P. B., North, K. E., Nyholt, D. R., O'Connell, J. R., Ober, C., Oldehinkel, A. J., Palmas, W., Palmer, C., Pasterkamp, G. G., Patin, E., Pennell, C. E., Perusse, L., Peyser, P. A., Pirastu, M., Polderman, T. J. C., Porteous, D. J., Posthuma, D., Psaty, B. M., Rioux, J. D., Rivadeneira, F., Rotimi, C., Rotter, J. I., Rudan, I., Den Ruijter, H. M., Sanghera, D. K., Sattar, N., Schmidt, R., Schulze, M. B., Schunkert, H., Scott, R. A., Shuldiner, A. R., Sim, X., Small, N., Smith, J. A., Sotoodehnia, N., Tai, E. -S., Teumer, A., Timpson, N. J., Toniolo, D., Tregouet, D. -A., Tuomi, T., Vollenweider, P., Wang, C. A., Weir, D. R., Whitfield, J. B., Wijmenga, C., Wong, T. -Y., Wright, J., Yang, J., Yu, L., Zemel, B. S., Zonderman, A. B., Perola, M., Magnusson, P. K. E., Uitterlinden, A. G., Kooner, J. S., Chasman, D. I., Loos, R. J. F., Franceschini, N., Franke, L., Haley, C. S., Hayward, C., Walters, R. G., Perry, J. R. B., Esko, T., Helgason, A., Stefansson, K., Joshi, P. K., Kubo, M., Wilson, J. 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D [0000-0001-7623-328X], Harris, Sarah E [0000-0002-4941-5106], Kacprowski, Tim [0000-0002-5393-2413], Karlsson, Torgny [0000-0001-8095-6149], Kleber, Marcus E [0000-0003-0663-7275], Mahajan, Anubha [0000-0001-5585-3420], Matsuda, Koichi [0000-0001-7292-2686], Meng, Weihua [0000-0001-5388-8494], van der Most, Peter J [0000-0001-8450-3518], Munz, Matthias [0000-0002-4728-3357], Palviainen, Teemu [0000-0002-7847-8384], Prasad, Rashmi B [0000-0002-4400-6741], Salvi, Erika [0000-0002-2724-2291], Skotte, Line [0000-0002-7398-1271], van der Spek, Ashley [0000-0001-7136-0159], Spracklen, Cassandra N [0000-0003-3590-7182], Strawbridge, Rona J [0000-0001-8506-3585], Tajuddin, Salman M [0000-0002-7919-8528], Verweij, Niek [0000-0002-4303-7685], Yanek, Lisa R [0000-0001-7117-1075], Zhao, Wei [0000-0001-7388-0692], Albert, Matthew L [0000-0001-7285-6973], Bentley, Amy R [0000-0002-0827-9101], Chanock, Stephen [0000-0002-2324-3393], Chen, Zhengming [0000-0001-6423-105X], Chiu, Yen-Feng [0000-0002-3352-4500], Cocca, Massimiliano [0000-0002-1127-7596], Collins, Francis S [0000-0002-1023-7410], Cugliari, Giovanni [0000-0002-6080-0718], Damulina, Anna [0000-0001-8241-2727], Day, Felix R [0000-0003-3789-7651], Dhana, Klodian [0000-0002-6397-7009], Dzimiri, Nduna [0000-0003-3395-5754], Elliott, Paul [0000-0002-7511-5684], Felix, Janine F [0000-0002-9801-5774], Freedman, Barry I [0000-0003-0275-5530], Girotto, Giorgia [0000-0003-4507-6589], Goel, Anuj [0000-0003-2307-4021], Goodarzi, Mark O [0000-0001-6364-5103], Gudbjartsson, Daniel F [0000-0002-5222-9857], Guity, Kamran [0000-0002-8379-9668], van Heel, David A [0000-0002-0637-2265], Hirata, Makoto [0000-0002-9994-9958], Ikram, M Arfan [0000-0003-0372-8585], Kamatani, Yoichiro [0000-0001-8748-5597], Kanai, Masahiro [0000-0001-5165-4408], Khor, Chiea Chuen [0000-0002-1128-4729], Kolcic, Ivana [0000-0001-7918-6052], Langenberg, Claudia [0000-0002-5017-7344], Lawlor, Deborah A [0000-0002-6793-2262], Liu, Jianjun [0000-0002-3255-3019], London, Stephanie J [0000-0003-4911-5290], Luan, Jian’an [0000-0003-3137-6337], Matoba, Nana [0000-0001-5329-0134], Mei, Xue W [0000-0002-6279-4884], Mezzavilla, Massimo [0000-0002-9000-4595], Milani, Lili [0000-0002-5323-3102], Mori, Trevor A [0000-0002-5264-9229], Murakami, Yoshinori [0000-0002-2826-4396], Murray, Alison D [0000-0003-4915-4847], Mychaleckyj, Josyf C [0000-0003-2595-0005], Neville, Matt J [0000-0002-6004-5433], Nolte, Ilja M [0000-0001-5047-4077], Ong, Ken K [0000-0003-4689-7530], Pálsson, Gunnar [0000-0002-8231-3961], Pankow, James S [0000-0001-7076-483X], Pattaro, Cristian [0000-0002-4119-0109], Quintana-Murci, Lluis [0000-0003-2429-6320], van Rheenen, Wouter [0000-0002-5860-1533], Rich, Stephen S [0000-0003-3872-7793], Rietveld, Cornelius A [0000-0003-4053-1861], Ruggiero, Daniela [0000-0003-3898-7827], Sabanayagam, Charumathi [0000-0002-4042-4719], Sabater-Lleal, Maria [0000-0002-0128-379X], Sala, Cinzia Felicita [0000-0003-2514-2075], Salomaa, Veikko [0000-0001-7563-5324], Scott, Laura J [0000-0002-4886-5084], Sedaghati-Khayat, Bahareh [0000-0002-7665-8648], Sennblad, Bengt [0000-0002-4360-8003], van Setten, Jessica [0000-0002-4934-7510], Smith, Blair H [0000-0002-5362-9430], Stančáková, Alena [0000-0002-1375-0252], Stanton, Alice [0000-0002-4961-165X], Straker, Leon [0000-0002-7786-4128], Sulem, Patrick [0000-0001-7123-6123], Swertz, Morris A [0000-0002-0979-3401], Taylor, Kent D [0000-0002-2756-4370], Tzoulaki, Ioanna [0000-0002-4275-9328], Veldink, Jan H [0000-0001-5572-9657], Vitart, Veronique [0000-0002-4991-3797], Völker, Uwe [0000-0002-5689-3448], Wander, Gurpreet S [0000-0002-4596-4247], Wang, Ya Xing [0000-0003-2749-7793], Wild, Sarah [0000-0001-7824-2569], Yuan, Jian-Min [0000-0002-4620-3108], Asselbergs, Folkert W [0000-0002-1692-8669], Boehnke, Mike [0000-0002-6442-7754], Bouchard, Claude [0000-0002-0048-491X], Brody, Jennifer A [0000-0001-8509-148X], Campbell, Archie [0000-0003-0198-5078], Caulfield, Mark J [0000-0001-9295-3594], Smith, George Davey [0000-0002-1407-8314], Dorajoo, Rajkumar [0000-0001-6608-2051], Ellinghaus, David [0000-0002-4332-6110], Erdmann, Jeanette [0000-0002-4486-6231], Evangelou, Evangelos [0000-0002-5488-2999], Feenstra, Bjarke [0000-0003-1478-649X], Feitosa, Mary [0000-0002-0933-2410], Franke, Andre [0000-0003-1530-5811], Grant, Struan F A [0000-0003-2025-5302], Griffiths, Lyn R [0000-0002-6774-5475], Groop, Leif [0000-0002-0187-3263], Gudnason, Vilmundur [0000-0001-5696-0084], van der Harst, Pim [0000-0002-2713-686X], Heng, Chew-Kiat [0000-0002-7309-9473], Hicks, Andrew A [0000-0001-6320-0411], Jaddoe, Vincent W V [0000-0003-2939-0041], De Jager, Philip L [0000-0002-8057-2505], Johannesson, Magnus [0000-0001-8759-6393], Johansson, Åsa [0000-0002-2915-4498], Jonas, Jost B [0000-0003-2972-5227], Jukema, J Wouter [0000-0002-3246-8359], Kaprio, Jaakko [0000-0002-3716-2455], Laakso, Markku [0000-0002-3394-7749], van der Laan, Sander W [0000-0001-6888-1404], Lahti, Jari [0000-0002-4310-5297], Martin, Nicholas G [0000-0003-4069-8020], Medland, Sarah E [0000-0003-1382-380X], Merriman, Tony R [0000-0003-0844-8726], Metspalu, Andres [0000-0002-3718-796X], Mohlke, Karen L [0000-0001-6721-153X], Montgomery, Grant W [0000-0002-4140-8139], Munroe, Patricia B [0000-0002-4176-2947], Nyholt, Dale R [0000-0001-7159-3040], Ober, Carole [0000-0003-4626-9809], Oldehinkel, Albertine J [0000-0003-3925-3913], Palmer, Colin [0000-0002-6415-6560], Perusse, Louis [0000-0001-6440-9698], Polderman, Tinca J. C. [0000-0001-5564-301X], Porteous, David J [0000-0003-1249-6106], Rioux, John D [0000-0001-7560-8326], Rivadeneira, Fernando [0000-0001-9435-9441], Rotimi, Charles [0000-0001-5759-053X], Rotter, Jerome I [0000-0001-7191-1723], Rudan, Igor [0000-0001-6993-6884], Sattar, Naveed [0000-0002-1604-2593], Sim, Xueling [0000-0002-1233-7642], Smith, Jennifer A [0000-0002-3575-5468], Teumer, Alexander [0000-0002-8309-094X], Timpson, Nicholas J [0000-0002-7141-9189], Tuomi, Tiinamaija [0000-0002-8306-6202], Wang, Carol A [0000-0002-4301-3974], Weir, David R [0000-0002-1661-2402], Whitfield, John B [0000-0002-1103-0876], Magnusson, Patrik K. E. [0000-0002-7315-7899], Uitterlinden, André G [0000-0002-7276-3387], Loos, Ruth J. F. [0000-0002-8532-5087], Franke, Lude [0000-0002-5159-8802], Haley, Chris S [0000-0002-9811-0210], Hayward, Caroline [0000-0002-9405-9550], Walters, Robin G [0000-0002-9179-0321], Joshi, Peter K [0000-0002-6361-5059], Wilson, James F [0000-0001-5751-9178], Apollo - University of Cambridge Repository, Moore, Kristjan HS [0000-0002-9579-4362], Luan, Jian'an [0000-0003-3137-6337], Grant, Struan FA [0000-0003-2025-5302], Jaddoe, Vincent WV [0000-0003-2939-0041], Polderman, Tinca JC [0000-0001-5564-301X], Magnusson, Patrik KE [0000-0002-7315-7899], Loos, Ruth JF [0000-0002-8532-5087], Neurology, Human genetics, Amsterdam Reproduction & Development (AR&D), Life Course Epidemiology (LCE), Groningen Institute for Gastro Intestinal Genetics and Immunology (3GI), Groningen Institute for Organ Transplantation (GIOT), Lifestyle Medicine (LM), Groningen Kidney Center (GKC), Cardiovascular Centre (CVC), Interdisciplinary Centre Psychopathology and Emotion regulation (ICPE), Stem Cell Aging Leukemia and Lymphoma (SALL), Institute for Molecular Medicine Finland, Department of Psychology and Logopedics, University Management, Developmental Psychology Research Group, Staff Services, Cognitive and Brain Aging, Research Programs Unit, Diabetes and Obesity Research Program, Johan Eriksson / Principal Investigator, Department of General Practice and Primary Health Care, Clinicum, University of Helsinki, Centre of Excellence in Complex Disease Genetics, Department of Public Health, Genetic Epidemiology, Helsinki Collegium for Advanced Studies, HUS Abdominal Center, Endokrinologian yksikkö, Bradford Teaching Hospitals NHS Foundation Trust [Bradford, UK] (BTHFT), University of Trieste, Université de Lausanne (UNIL), Unité de Recherche sur les Maladies Cardiovasculaires, du Métabolisme et de la Nutrition = Institute of cardiometabolism and nutrition (ICAN), Consiglio Nazionale delle Ricerche (CNR), Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut Pasteur [Paris], Institut Pasteur [Paris], University of Oxford [Oxford], Medical Genetics, Dept. RSD and Public Health, IRCCS-Burlo Garofolo/University of Trieste, sans affiliation, Helmholtz-Zentrum München (HZM), Institut Pasteur [Paris]-Centre National de la Recherche Scientifique (CNRS), Institute of Cardiovascular Science, University College London, Hammersmith Hospital NHS Imperial College Healthcare-Imperial College London, Universität zu Lübeck [Lübeck], University of Ioannina Medical School, Università degli studi di Napoli Federico II-RISSC-Lab, Universität Heidelberg [Heidelberg], University of Turin, University of California-University of California, Nantes Université (NU)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), University of Helsinki-University of Helsinki, Université de Nantes (UN)-Université de Rennes 1 (UR1), Erasmus MC other, Internal Medicine, and Applied Economics

Subjects
0301 basic medicine, 631/208/1397, Chemistry(all), Health Status, [SDV]Life Sciences [q-bio], LOCI, General Physics and Astronomy, MESH: Haplotype, MESH: Cognition, 030105 genetics & heredity, Runs of Homozygosity, Biochemistry, Consanguinity, Cognition, Inbreeding depression, 2.1 Biological and endogenous factors, Body Size, Inbreeding, Skyldleikarækt, Aetiology, Human phenotypes, lcsh:Science, MESH: Health Status, Genetics, Multidisciplinary, Inbreeding Depression, Confounding, Homozygote, RUNS, 631/208/205, 631/208/721, 3. Good health, genomic inbreeding coefficients, MESH: Risk-Taking, 631/208/730, Autozygosit, homozygosity, Erfðarannsóknir, Medical Genetics, genomic inbreeding coefficient, MESH: Homozygote, Offspring, Science, Autozygosity, Blóðsifjar, 610 Medicine & health, Biology, INBREEDING DEPRESSION, HOMOZYGOSITY, FERTILITY, QUANTIFICATION, Physics and Astronomy(all), General Biochemistry, Genetics and Molecular Biology, Article, Association, 03 medical and health sciences, Risk-Taking, 360 Social problems & social services, Journal Article, Humans, ddc:610, Allele, Alleles, Medicinsk genetik, Genetic association study, MESH: Consanguinity, MESH: Body Size, MESH: Humans, Biochemistry, Genetics and Molecular Biology(all), MESH: Alleles, Haplotype, MESH: Fertility, General Chemistry, Brain Disorders, MESH: Inbreeding Depression, 030104 developmental biology, Fertility, Haplotypes, Genetic markers, lcsh:Q, [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie, 3111 Biomedicine, Genetics and Molecular Biology(all)
Abstract

Publisher's version (útgefin grein)., In many species, the offspring of related parents suffer reduced reproductive success, a phenomenon known as inbreeding depression. In humans, the importance of this effect has remained unclear, partly because reproduction between close relatives is both rare and frequently associated with confounding social factors. Here, using genomic inbreeding coefficients (FROH) for >1.4 million individuals, we show that FROH is significantly associated (p < 0.0005) with apparently deleterious changes in 32 out of 100 traits analysed. These changes are associated with runs of homozygosity (ROH), but not with common variant homozygosity, suggesting that genetic variants associated with inbreeding depression are predominantly rare. The effect on fertility is striking: FROH equivalent to the offspring of first cousins is associated with a 55% decrease [95% CI 44–66%] in the odds of having children. Finally, the effects of FROH are confirmed within full-sibling pairs, where the variation in FROH is independent of all environmental confounding., This paper is the work of the ROHgen consortium. We thank the Sigma T2D Consortium, whose members are detailed in Supplementary Note 3. We thank the UK Biobank Resource, approved under application 19655; we acknowledge funding from the UK Medical Research Council Human Genetics Unit and MRC Doctoral Training Programme in Precision Medicine. We also thank Neil Robertson, Wellcome Trust Centre for Human Genetics, Oxford, for use of his author details management software, Authorial. Finally, we thank all the participants, researchers and funders of ROHgen cohorts. Cohort-specific acknowledgements are in Supplementary Data 2; personal acknowledgements and disclosures are in Supplementary Note 2. We thank Rachel Edwards for administrative assistance.

Published
2019

42. C1orf106 is a colitis risk gene that regulates stability of epithelial adherens junctions

Author

Steven A. Carr, Elizabeth A. Creasey, A. Nicole Desch, Atul K. Bhan, Zhifang Cao, Vishnu Mohanan, Gaelen Guzman, Chloé Lévesque, Junmei Yao, Angela C. Boroughs, Monica Schenone, Ramnik J. Xavier, Toru Nakata, John D. Rioux, Guy Charron, Kara G. Lassen, Gabrielle Boucher, Hans Christian Reinecker, and Mark J. Daly

Subjects
0301 basic medicine, Multidisciplinary, HEK 293 cells, Biology, medicine.disease, Phenotype, Inflammatory bowel disease, Epithelium, Cell biology, Adherens junction, 03 medical and health sciences, 030104 developmental biology, medicine.anatomical_structure, Ubiquitin, Caco-2, medicine, biology.protein, Guanine nucleotide exchange factor
Abstract

Overcoming a barrier to IBD Inflammatory bowel disease (IBD) is a group of disorders linked to inflammation of the gastrointestinal tract. Colitis is a type of IBD that affects the inner lining of the colon and has been linked to a gene known as C1orf106 . Mohanan et al. found that C1orf106 encodes a protein that stabilizes the integrity of epithelial junctions and enhances barrier defense (see the Perspective by Citi). IBD-associated mutations in C1orf106 lead to greater cytohesin-1 protein levels, changes in E-cadherin localization, and enhanced susceptibility to intestinal pathogens. Modulation of C1orf106 may thus hold promise for treating colitis and other IBDs. Science , this issue p. 1161 ; see also p. 1097

Published
2018

43. A comprehensive evaluation of the genetic architecture of sudden cardiac arrest

Author

Barbara McKnight, Martina Müller-Nurasyid, Raha Pazoki, Michael W.T. Tanck, Thomas Engstrøm, Arthur A.M. Wilde, Man Li, Martin VanDenburgh, Marieke T. Blom, Reza Jabbari, Thomas Meitinger, Philippe Goyette, Anna Moes, Rebecca N. Mitchell, Christine M. Albert, Aravinda Chakravarti, Dan E. Arking, Jean-Claude Tardif, Rozenn N. Lemaitre, Foram N. Ashar, Pui-Yan Kwok, Frank D. Kolodgie, Jacob Tfelt-Hansen, Renu Virmani, Susan R. Heckbert, Angel C.Y. Mak, David S. Siscovick, Vinicius Tragante, Xavier Jouven, Hanno L. Tan, John D. Rioux, Mark Eijgelsheim, Ronald J. Prineas, Nona Sotoodehnia, Xiaoqing Zhao, Stefan A. Escher, Heikki V. Huikuri, Bruce M. Psaty, Charlotte Glinge, Albert Hofman, Oscar H. Franco, Florence Dumas, Bruno H. Stricker, M. Juhani Junttila, Folkert W. Asselbergs, Josef Coresh, Christopher J. O'Donnell, Paul W. Franks, Shih-Jen Hwang, Veikko Salomaa, Jan-Håkan Jansson, Stefan Kääb, Christopher Newton-Cheh, Joseph J. Maleszewski, Paul I.W. de Bakker, Jennifer A. Brody, Aki S. Havulinna, André G. Uitterlinden, Georg Ehret, Jerome I. Rotter, Thomas Lumley, Connie R. Bezzina, Marc K. Halushka, Sara L. Pulit, Epidemiology, Internal Medicine, Ehret, Georg Benedikt, Cardiology, Epidemiology and Data Science, APH - Methodology, ACS - Heart failure & arrhythmias, and APH - Health Behaviors & Chronic Diseases

Subjects
Male, Genome-wide association study, Coronary Artery Disease, Cardiorespiratory Medicine and Haematology, Arrhythmias, 030204 cardiovascular system & hematology, VARIANTS, Cardiovascular, Bioinformatics, Body Mass Index, Sudden cardiac death, Coronary artery disease, 0302 clinical medicine, Risk Factors, 2.1 Biological and endogenous factors, Medicine, 030212 general & internal medicine, Family history, Aetiology, Cardiac/genetics/physiopathology, reproductive and urinary physiology, POPULATION, 0303 health sciences, education.field_of_study, Coronary Artery Disease/genetics, ATHEROSCLEROSIS-RISK, DEATH, hemic and immune systems, Mendelian Randomization Analysis, Single Nucleotide, 3. Good health, Death, Heart Disease, MENDELIAN RANDOMIZATION, Medical genetics, Female, FIBRILLATION, medicine.symptom, Cardiology and Cardiovascular Medicine, Cardiac, Cardiac/etiology, medicine.medical_specialty, Clinical Sciences, Population, Single-nucleotide polymorphism, 610 Medicine & health, Biology, Genetic correlation, Polymorphism, Single Nucleotide, Risk Assessment, Heart Conduction System/physiopathology, 03 medical and health sciences, Sex Factors, Sudden cardiac arrest, Clinical Research, Heart Conduction System, 360 Social problems & social services, RISK-FACTOR, Mendelian randomization, Genetics, Journal Article, Humans, INTERVAL, Polymorphism, Risk Assessment/methods, education, Heart Disease - Coronary Heart Disease, 030304 developmental biology, business.industry, Prevention, Human Genome, Arrhythmias, Cardiac, medicine.disease, Sudden, Genetic architecture, Good Health and Well Being, Death, Sudden, Cardiac, Cardiovascular System & Hematology, business
Abstract

BackgroundSudden cardiac arrest (SCA) accounts for 10% of adult mortality in Western populations. While several risk factors are observationally associated with SCA, the genetic architecture of SCA in the general population remains unknown. Furthermore, understanding which risk factors are causal may help target prevention strategies.MethodsWe carried out a large genome-wide association study (GWAS) for SCA (n=3,939 cases, 25,989 non-cases) to examine common variation genome-wide and in candidate arrhythmia genes. We also exploited Mendelian randomization methods using cross-trait multi-variant genetic risk score associations (GRSA) to assess causal relationships of 18 risk factors with SCA.ResultsNo variants were associated with SCA at genome-wide significance, nor were common variants in candidate arrhythmia genes associated with SCA at nominal significance. Using cross-trait GRSA, we established genetic correlation between SCA and (1) coronary artery disease (CAD) and traditional CAD risk factors (blood pressure, lipids, and diabetes), (2) height and BMI, and (3) electrical instability traits (QT and atrial fibrillation), suggesting etiologic roles for these traits in SCA risk.ConclusionsOur findings show that a comprehensive approach to the genetic architecture of SCA can shed light on the determinants of a complex life-threatening condition with multiple influencing factors in the general population. The results of this genetic analysis, both positive and negative findings, have implications for evaluating the genetic architecture of patients with a family history of SCA, and for efforts to prevent SCA in highrisk populations and the general community.

Published
2018

44. Biomarker-guided stratification of autoimmune patients for biologic therapy

Author

Christine Des Rosiers, Sabine Ivison, Megan K. Levings, Sylvie Lesage, and John D. Rioux

Subjects
0301 basic medicine, Immunology, Biology, medicine.disease_cause, Bioinformatics, Biomarkers, Pharmacological, Autoimmune Diseases, Autoimmunity, 03 medical and health sciences, Immune system, Predictive Value of Tests, medicine, Humans, Immunology and Allergy, Immune homeostasis, Patient Selection, Biologic therapies, Reference Standards, Prognosis, Biological Therapy, Treatment Outcome, 030104 developmental biology, Biomarker (medicine), Gene-Environment Interaction, Assay standardization
Abstract

Autoimmunity results from an intersection of genetic and environmental factors that cause patient-specific perturbations in immune homeostasis. Defining autoimmunity-associated genetic factors has led to mechanistic insight into underlying etiologies, and the development of many biologic therapies that target the immune system. However, biomarker-informed pairing of patients with optimal biologic therapy is lacking. Here, we discuss platforms commonly used to find biomarkers that predict response to biologic therapy in autoimmunity and highlight recent biomarker discoveries. We also outline how the lack of assay standardization is a barrier to successful biomarker validation. Finally, we argue that the successful development of companion biomarkers for biologic therapy requires collaborative approaches that integrate multiple platforms and enable comprehensive measurement of multiple immune pathways.

Published
2017

46. Sa482 MEGA-ANALYSIS REVEALS CLINICAL SEROLOGICAL AND GENETIC ASSOCIATIONS WITH EXTRAINTESTINAL MANIFESTATIONS IN IBD

Author

Shaohong Yang, David Hercules, Christina Ha, Gil Y. Melmed, Emebet Mengesha, Shishir Dube, Dalin Li, Gregory J. Botwin, Millie D. Long, Judy H. Cho, Shervin Rabizadeh, R. Balfour Sartor, Steven R. Brant, Bana Jabri, Richard H. Duerr, Eric A. Vasiliauskas, Ashwin N. Ananthakrishnan, William A. Faubion, David Ziring, John D. Rioux, Dermot P.B. McGovern, Stephan R. Targan, Michelle Khrom, Robert S. Sandler, L. Philip Schumm, Nirupama Bonthala, Mark S. Silverberg, Talin Haritunians, Subra Kugathasan, Sergio A. Lira, Rodney D. Newberry, Ramnik J. Xavier, and Gaurav Syal

Subjects
Hepatology, Immunology, Gastroenterology, Mega analysis
Published
2021

47. 778 EXOME SEQUENCING IN 30,000 CASES DEFINES NOVEL RISK FACTORS FOR CROHN'S DISEASE

Author

Manuel A. Rivas, Guhan Venkataraman, Kai Yuan, John D. Rioux, Carl A. Anderson, Mark J. Daly, Ramnik J. Xavier, Dermot P.B. McGovern, Christine Stevens, Aleksejs Sazonovs, and Hailiang Huang

Subjects
education.field_of_study, Hepatology, Population, Gastroenterology, Genome-wide association study, Computational biology, Biology, Genome, CRISPR, education, Gene, Exome, Exome sequencing, Genetic association
Abstract

Background Genome-wide association studies (GWASs) have identified >200 genomic regions associated with IBD. These signals are mainly driven by common variants in noncoding regions, making it a challenge to extract biological insight. Targeted sequencing of genes in these regions has successfully identified putative causal variants, often rarer and independent of the initial GWAS hit. These coding variants have led to more direct functional experiments demonstrating causal mechanisms for at least ten genes. Methods To further rare variant-based discovery, we pursued large-scale exome sequencing of more than 30,000 Crohn's disease (CD) cases and population controls from more than 20 centers in the International IBD Genetics Consortium. Sequencing was performed at the Broad Institute using both Nextera (11,125 CD cases) and TWIST (7,442 CD cases) exome captures - and at the Sanger Institute (whole genomes 6,404 CD cases and Agilent exome 3,848 CD cases). Further replication was performed with a sample of 4,359 cases from Kiel sequenced at Regeneron. In each technical experiment, a comparable or larger number of sequenced controls were available for genetic association analysis. Results We conducted meta-analysis of two exome captures at the Broad Institute. To expand on GWAS, we focused on rare and low-frequency coding variants between 0.01% and 10% and estimated roughly 85% of all protein coding variants in this frequency range are reliably analyzed in both exome captures. 119 variants (figure below) were identified with p Conclusion These findings provide novel launch points for mechanistic studies that will further our understanding of disease pathogenesis. For example, SDF2L1 (R161H) flags a gene not previously implicated in IBD but which is reported to regulate feeding-induced ER stress, with a series of CRISPR screens identifying it as an essential regulator of ER homeostasis. Download : Download high-res image (141KB) Download : Download full-size image Effect size versus frequency for significant low frequency coding variants (credit: Hailiang Huang)

Published
2021

48. 168 GENE EXPRESSION ANALYSES IN THE PERIOPERATIVE ILEAL RESECTION PERIOD ILLUMINATE PATHOGENIC AND PROTECTIVE CROHN'S DISEASE CELL SUBSETS

Author

L. Philip Schumm, Talin Haritunians, Mamta Giri, Steven R. Brant, Mark S. Silverberg, Mark Lazarev, Richard H. Duerr, Kyle Gettler, John D. Rioux, Ksenija Sabic, Dermot P.B. McGovern, and Judy H. Cho

Subjects
Crohn's disease, medicine.medical_specialty, Hepatology, business.industry, Period (gene), Gastroenterology, Perioperative, medicine.disease, Ileal resection, Internal medicine, Gene expression, T cell subset, medicine, business
Published
2021

50. 374 INFLAMED ULCERATIVE COLITIS REGIONS ASSOCIATED TO MRGPRX2-MEDIATED MAST CELL DEGRANULATION AND CELL ACTIVATION MODULES, DEFINING A NEW THERAPEUTIC TARGET

Author

Ling-shiang F. Chuang, Ernie Chen, Mamta Giri, Nicole Villaverde, Nai-yun Hsu, Ksenija Sabic, Sari Joshowitz, Kyle Gettler, Shikha Nayar, Zhi Chai, Isaac Alter, Colleen Chasteau, Ujunwa Korie, Siarhei Dzedzik, Tin Htwe Thin, Aayushee Jain, Arden Moscati, Gerold Bongers, Richard H. Duerr, Mark S. Silverberg, Steven R. Brant, John D. Rioux, Inga Peter, L. Philip Schumm, Talin Haritunians, Dermot P.B. Mcgovern, Yuval Itan, and Judy H. Cho

Subjects
Hepatology, Gastroenterology
Published
2021

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