Genome-wide association analyses identify new risk variants and the genetic architecture of amyotrophic lateral sclerosis.

Authors:
Wouter van Rheenen Aleksey Shatunov Annelot M Dekker Russell L McLaughlin Frank P Diekstra Sara L Pulit Rick A A van der Spek Urmo Võsa Simone de Jong Matthew R Robinson Jian Yang Isabella Fogh Perry Tc van Doormaal Gijs H P Tazelaar Max Koppers Anna M Blokhuis William Sproviero Ashley R Jones Kevin P Kenna Kristel R van Eijk Oliver Harschnitz Raymond D Schellevis William J Brands Jelena Medic Androniki Menelaou Alice Vajda Nicola Ticozzi Kuang Lin Boris Rogelj Katarina Vrabec Metka Ravnik-Glavač Blaž Koritnik Janez Zidar Lea Leonardis Leja Dolenc Grošelj Stéphanie Millecamps François Salachas Vincent Meininger Mamede de Carvalho Susana Pinto Jesus S Mora Ricardo Rojas-García Meraida Polak Siddharthan Chandran Shuna Colville Robert Swingler Karen E Morrison Pamela J Shaw John Hardy Richard W Orrell Alan Pittman Katie Sidle Pietro Fratta Andrea Malaspina Simon Topp Susanne Petri Susanne Abdulla Carsten Drepper Michael Sendtner Thomas Meyer Roel A Ophoff Kim A Staats Martina Wiedau-Pazos Catherine Lomen-Hoerth Vivianna M Van Deerlin John Q Trojanowski Lauren Elman Leo McCluskey A Nazli Basak Ceren Tunca Hamid Hamzeiy Yesim Parman Thomas Meitinger Peter Lichtner Milena Radivojkov-Blagojevic Christian R Andres Cindy Maurel Gilbert Bensimon Bernhard Landwehrmeyer Alexis Brice Christine A M Payan Safaa Saker-Delye Alexandra Dürr Nicholas W Wood Lukas Tittmann Wolfgang Lieb Andre Franke Marcella Rietschel Sven Cichon Markus M Nöthen Philippe Amouyel Christophe Tzourio Jean-François Dartigues Andre G Uitterlinden Fernando Rivadeneira Karol Estrada Albert Hofman Charles Curtis Hylke M Blauw Anneke J van der Kooi Marianne de Visser An Goris Markus Weber Christopher E Shaw Bradley N Smith Orietta Pansarasa Cristina Cereda Roberto Del Bo Giacomo P Comi Sandra D'Alfonso Cinzia Bertolin Gianni Sorarù Letizia Mazzini Viviana Pensato Cinzia Gellera Cinzia Tiloca Antonia Ratti Andrea Calvo Cristina Moglia Maura Brunetti Simona Arcuti Rosa Capozzo Chiara Zecca Christian Lunetta Silvana Penco Nilo Riva Alessandro Padovani Massimiliano Filosto Bernard Muller Robbert Jan Stuit Ian Blair Katharine Zhang Emily P McCann Jennifer A Fifita Garth A Nicholson Dominic B Rowe Roger Pamphlett Matthew C Kiernan Julian Grosskreutz Otto W Witte Thomas Ringer Tino Prell Beatrice Stubendorff Ingo Kurth Christian A Hübner P Nigel Leigh Federico Casale Adriano Chio Ettore Beghi Elisabetta Pupillo Rosanna Tortelli Giancarlo Logroscino John Powell Albert C Ludolph Jochen H Weishaupt Wim Robberecht Philip Van Damme Lude Franke Tune H Pers Robert H Brown Jonathan D Glass John E Landers Orla Hardiman Peter M Andersen Philippe Corcia Patrick Vourc'h Vincenzo Silani Naomi R Wray Peter M Visscher Paul I W de Bakker Michael A van Es R Jeroen Pasterkamp Cathryn M Lewis Gerome Breen Ammar Al-Chalabi Leonard H van den Berg Jan H Veldink

Nat Genet 2016 09 25;48(9):1043-8. Epub 2016 Jul 25.

Department of Neurology, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, the Netherlands.

To elucidate the genetic architecture of amyotrophic lateral sclerosis (ALS) and find associated loci, we assembled a custom imputation reference panel from whole-genome-sequenced patients with ALS and matched controls (n = 1,861). Through imputation and mixed-model association analysis in 12,577 cases and 23,475 controls, combined with 2,579 cases and 2,767 controls in an independent replication cohort, we fine-mapped a new risk locus on chromosome 21 and identified C21orf2 as a gene associated with ALS risk. In addition, we identified MOBP and SCFD1 as new associated risk loci. We established evidence of ALS being a complex genetic trait with a polygenic architecture. Furthermore, we estimated the SNP-based heritability at 8.5%, with a distinct and important role for low-frequency variants (frequency 1-10%). This study motivates the interrogation of larger samples with full genome coverage to identify rare causal variants that underpin ALS risk.

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http://dx.doi.org/10.1038/ng.3622DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5556360PMC
September 2016
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