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Opie-Martin S, Iacoangeli A, Topp SD, Abel O, Mayl K, Mehta PR, Shatunov A, Fogh I, Bowles H, Limbachiya N, Spargo TP, Al-Khleifat A, Williams KL, Jockel-Balsarotti J, Bali T, Self W, Henden L, Nicholson GA, Ticozzi N, McKenna-Yasek D, Tang L, Shaw PJ, Chio A, Ludolph A, Weishaupt JH, Landers JE, Glass JD, Mora JS, Robberecht W, Damme PV, McLaughlin R, Hardiman O, van den Berg L, Veldink JH, Corcia P, Stevic Z, Siddique N, Silani V, Blair IP, Fan DS, Esselin F, de la Cruz E, Camu W, Basak NA, Siddique T, Miller T, Brown RH, Al-Chalabi A, Shaw CE. The SOD1-mediated ALS phenotype shows a decoupling between age of symptom onset and disease duration. Nat Commun 2022; 13:6901. [PMID: 36371497 PMCID: PMC9653399 DOI: 10.1038/s41467-022-34620-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 10/31/2022] [Indexed: 11/13/2022] Open
Abstract
Superoxide dismutase (SOD1) gene variants may cause amyotrophic lateral sclerosis, some of which are associated with a distinct phenotype. Most studies assess limited variants or sample sizes. In this international, retrospective observational study, we compare phenotypic and demographic characteristics between people with SOD1-ALS and people with ALS and no recorded SOD1 variant. We investigate which variants are associated with age at symptom onset and time from onset to death or censoring using Cox proportional-hazards regression. The SOD1-ALS dataset reports age of onset for 1122 and disease duration for 883 people; the comparator population includes 10,214 and 9010 people respectively. Eight variants are associated with younger age of onset and distinct survival trajectories; a further eight associated with younger onset only and one with distinct survival only. Here we show that onset and survival are decoupled in SOD1-ALS. Future research should characterise rarer variants and molecular mechanisms causing the observed variability.
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Affiliation(s)
- Sarah Opie-Martin
- Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 9NU, UK
| | - Alfredo Iacoangeli
- Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 9NU, UK
- Department of Biostatistics and Health Informatics, Institute of Psychiatry Psychology & Neuroscience, King's College London, SE5 8AF, London, UK
- NIHR Biomedical Research Centre at South London and Maudsley NHS Foundation Trust and King's College London, London, UK
| | - Simon D Topp
- Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 9NU, UK
| | - Olubunmi Abel
- Homerton University Hospital, Homerton Row, London, E9 6SR, UK
| | - Keith Mayl
- Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 9NU, UK
| | - Puja R Mehta
- Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 9NU, UK
| | - Aleksey Shatunov
- Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 9NU, UK
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Blue Block 1.09, Sherrington Building, Crown St, Liverpool, L693BX, UK
- Institute of Medicine, North-Eastern Federal University, 58 Belinsky str, Yakutsk, 677000, Russia
| | - Isabella Fogh
- Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 9NU, UK
| | - Harry Bowles
- Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 9NU, UK
| | - Naomi Limbachiya
- Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 9NU, UK
| | - Thomas P Spargo
- Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 9NU, UK
| | - Ahmad Al-Khleifat
- Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 9NU, UK
| | - Kelly L Williams
- Macquarie University Centre for MND Research, Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW, Australia
| | | | - Taha Bali
- Department of Neurology, Washington University School of Medicine, St Louis, MO, 63110, USA
| | - Wade Self
- Department of Neurology, Washington University School of Medicine, St Louis, MO, 63110, USA
| | - Lyndal Henden
- Macquarie University Centre for MND Research, Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW, Australia
| | - Garth A Nicholson
- Macquarie University Centre for MND Research, Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW, Australia
- Concord Clinical School, ANZAC Research Institute, Concord Repatriation Hospital, Sydney, NSW, 2139, Australia
| | - Nicola Ticozzi
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, 20095, Cusano Milanino, MiIan, Italy
- Dino Ferrari Center, Department of Pathophysiology and Transplantation, Center for Neurotechnology and Brain Therapeutics, Università degli Studi di Milano, Milan, Italy
| | - Diane McKenna-Yasek
- Department of Neurology, University of Massachusetts Medical School, Worcester, MA, 02125, USA
| | - Lu Tang
- Department of Neurology, Peking University Third Hospital, 49 North Garden Road, Haidian District, Beijing, 100191, PR China
| | - Pamela J Shaw
- Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, Sheffield, S10 2HQ, UK
| | - Adriano Chio
- Rita Levi Montalcini' Department of Neuroscience, University of Turin, Turin, Italy
- Neurology 1, AOU Città della Salute e della Scienza of Torino, Turin, 10124, Torino, Italy
| | - Albert Ludolph
- Department of Neurology, Ulm University, Oberer Eselsberg 45, 89081, Ulm, Germany
- German Center for Neurodegenerative Diseases, DZNE, Ulm, Germany
| | - Jochen H Weishaupt
- Department of Neurology, University of Ulm, Oberer Eselsberg 45, 89081, Ulm, Germany
- Division of Neurodegenerative Disorders, Department of Neurology, Mannheim Center for Translational Neuroscience, Medical Faculty Mannheim, Heidelberg University, Heidelberg, Germany
| | - John E Landers
- Department of Neurology, University of Massachusetts Medical School, Worcester, MA, 02125, USA
| | - Jonathan D Glass
- Department Neurology, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Jesus S Mora
- ALS Unit, Department of Neurology, Hospital San Rafael, 28016, Madrid, Spain
| | - Wim Robberecht
- Neurology Department, Univeristy Hospitals Leuven, Herestraat 49, 3000, Leuven, Belgium
| | - Philip Van Damme
- Neurology Department, Univeristy Hospitals Leuven, Herestraat 49, 3000, Leuven, Belgium
- Neuroscience Department, KU Leuven and Center for Brain & Disease Research VIB Leuven, Leuven, Belgium
| | - Russell McLaughlin
- Complex Trait Genomics Laboratory, Smurfit Institute of Genetics, Trinity College Dublin, Dublin, D02 PN40, Ireland
| | - Orla Hardiman
- Academic Unit of Neurology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, D02 PN40, Ireland
| | - Leonard van den Berg
- Department of Neurology, UMC Utrecht Brain Center, University Medical Center Utrecht, Heidelberglaan 100, Utrecht, 3584 CX, The Netherlands
| | - Jan H Veldink
- Department of Neurology, UMC Utrecht Brain Center, University Medical Center Utrecht, Heidelberglaan 100, Utrecht, 3584 CX, The Netherlands
| | - Phillippe Corcia
- Centre de Référence pour la SLA et les Autres Maladies du Motoneurone (FILSLAN), 2 Avenue Martin Luther King, 87042, Limoges Cedex, France
- Centre de Compétences Neuropathies Amyloïdes Familiales et Autres Neuropathies Périphériques Rares (NNERF), Poitiers, France
| | - Zorica Stevic
- Neurology Clinic, Clinical Center of Serbia, School of Medicine, University of Belgrade, Studentski trg 1, Belgrade, Serbia
| | - Nailah Siddique
- Neuromuscular Disorders Program, Northwestern University, Feinberg School of Medicine, Chicago, IL, 60208, USA
| | - Vincenzo Silani
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, 20095, Cusano Milanino, MiIan, Italy
- Dino Ferrari Center, Department of Pathophysiology and Transplantation, Center for Neurotechnology and Brain Therapeutics, Università degli Studi di Milano, Milan, Italy
| | - Ian P Blair
- Macquarie University Centre for MND Research, Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW, Australia
| | - Dong-Sheng Fan
- Department of Neurology, Peking University Third Hospital, 49 North Garden Road, Haidian District, Beijing, 100191, PR China
| | - Florence Esselin
- Reference Center for ALS and Other Rare Motoneuron Disorders, University Hospital Gui de Chauliac, 34295, Montpellier, France
| | - Elisa de la Cruz
- Reference Center for ALS and Other Rare Motoneuron Disorders, University Hospital Gui de Chauliac, 34295, Montpellier, France
| | - William Camu
- Reference Center for ALS and Other Rare Motoneuron Disorders, University Hospital Gui de Chauliac, 34295, Montpellier, France
| | - Nazli A Basak
- Koç University, School of Medicine Translational Medicine Research Center KUTTAM-NDAL, 34450, Sarıyer, Istanbul, Turkey
| | - Teepu Siddique
- Neuromuscular Disorders Program, Northwestern University, Feinberg School of Medicine, Chicago, IL, 60208, USA
| | - Timothy Miller
- Department of Neurology, Washington University School of Medicine, St Louis, MO, 63110, USA
| | - Robert H Brown
- Department of Neurology, University of Massachusetts Medical School, Worcester, MA, 02125, USA
| | - Ammar Al-Chalabi
- Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 9NU, UK
| | - Christopher E Shaw
- UK Dementia Research Institute Centre at King's College London, School of Neuroscience, King's College London, Strand, London, WC2R 2LS, UK.
- Centre for Brain Research, University of Auckland, 85 Park Road, Grafton, Auckland, 1023, New Zealand.
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2
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Kenna KP, van Doormaal PTC, Dekker AM, Ticozzi N, Kenna BJ, Diekstra FP, van Rheenen W, van Eijk KR, Jones AR, Keagle P, Shatunov A, Sproviero W, Smith BN, van Es MA, Topp SD, Kenna A, Miller JW, Fallini C, Tiloca C, McLaughlin RL, Vance C, Troakes C, Colombrita C, Mora G, Calvo A, Verde F, Al-Sarraj S, King A, Calini D, de Belleroche J, Baas F, van der Kooi AJ, de Visser M, Ten Asbroek ALMA, Sapp PC, McKenna-Yasek D, Polak M, Asress S, Muñoz-Blanco JL, Strom TM, Meitinger T, Morrison KE, Lauria G, Williams KL, Leigh PN, Nicholson GA, Blair IP, Leblond CS, Dion PA, Rouleau GA, Pall H, Shaw PJ, Turner MR, Talbot K, Taroni F, Boylan KB, Van Blitterswijk M, Rademakers R, Esteban-Pérez J, García-Redondo A, Van Damme P, Robberecht W, Chio A, Gellera C, Drepper C, Sendtner M, Ratti A, Glass JD, Mora JS, Basak NA, Hardiman O, Ludolph AC, Andersen PM, Weishaupt JH, Brown RH, Al-Chalabi A, Silani V, Shaw CE, van den Berg LH, Veldink JH, Landers JE. NEK1 variants confer susceptibility to amyotrophic lateral sclerosis. Nat Genet 2016; 48:1037-42. [PMID: 27455347 PMCID: PMC5560030 DOI: 10.1038/ng.3626] [Citation(s) in RCA: 173] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 06/24/2016] [Indexed: 12/11/2022]
Abstract
To identify genetic factors contributing to amyotrophic lateral sclerosis (ALS), we conducted whole-exome analyses of 1,022 index familial ALS (FALS) cases and 7,315 controls. In a new screening strategy, we performed gene-burden analyses trained with established ALS genes and identified a significant association between loss-of-function (LOF) NEK1 variants and FALS risk. Independently, autozygosity mapping for an isolated community in the Netherlands identified a NEK1 p.Arg261His variant as a candidate risk factor. Replication analyses of sporadic ALS (SALS) cases and independent control cohorts confirmed significant disease association for both p.Arg261His (10,589 samples analyzed) and NEK1 LOF variants (3,362 samples analyzed). In total, we observed NEK1 risk variants in nearly 3% of ALS cases. NEK1 has been linked to several cellular functions, including cilia formation, DNA-damage response, microtubule stability, neuronal morphology and axonal polarity. Our results provide new and important insights into ALS etiopathogenesis and genetic etiology.
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Affiliation(s)
- Kevin P Kenna
- Department of Neurology, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Perry T C van Doormaal
- Department of Neurology Brain Centre, Brain Centre Rudolf Magnus, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Annelot M Dekker
- Department of Neurology Brain Centre, Brain Centre Rudolf Magnus, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Nicola Ticozzi
- Department of Neurology, IRCCS Istituto Auxologico Italiano, Milan, Italy
- Department of Pathophysiology and Transplantation, 'Dino Ferrari' Center, Università degli Studi di Milano, Milan, Italy
| | - Brendan J Kenna
- Department of Neurology, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Frank P Diekstra
- Department of Neurology Brain Centre, Brain Centre Rudolf Magnus, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Wouter van Rheenen
- Department of Neurology Brain Centre, Brain Centre Rudolf Magnus, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Kristel R van Eijk
- Department of Neurology Brain Centre, Brain Centre Rudolf Magnus, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Ashley R Jones
- Maurice Wohl Clinical Neuroscience Institute, King's College London, Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, London, UK
| | - Pamela Keagle
- Department of Neurology, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Aleksey Shatunov
- Maurice Wohl Clinical Neuroscience Institute, King's College London, Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, London, UK
| | - William Sproviero
- Maurice Wohl Clinical Neuroscience Institute, King's College London, Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, London, UK
| | - Bradley N Smith
- Maurice Wohl Clinical Neuroscience Institute, King's College London, Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, London, UK
| | - Michael A van Es
- Department of Neurology Brain Centre, Brain Centre Rudolf Magnus, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Simon D Topp
- Maurice Wohl Clinical Neuroscience Institute, King's College London, Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, London, UK
| | - Aoife Kenna
- Department of Neurology, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Jack W Miller
- Maurice Wohl Clinical Neuroscience Institute, King's College London, Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, London, UK
| | - Claudia Fallini
- Department of Neurology, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Cinzia Tiloca
- Department of Neurology, IRCCS Istituto Auxologico Italiano, Milan, Italy
- Doctoral School in Molecular Medicine, Department of Sciences and Biomedical Technologies, Università degli Studi di Milano, Milan, Italy
| | - Russell L McLaughlin
- Academic Unit of Neurology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Caroline Vance
- Maurice Wohl Clinical Neuroscience Institute, King's College London, Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, London, UK
| | - Claire Troakes
- Maurice Wohl Clinical Neuroscience Institute, King's College London, Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, London, UK
| | - Claudia Colombrita
- Department of Neurology, IRCCS Istituto Auxologico Italiano, Milan, Italy
- Department of Pathophysiology and Transplantation, 'Dino Ferrari' Center, Università degli Studi di Milano, Milan, Italy
| | - Gabriele Mora
- Salvatore Maugeri Foundation, IRCSS, Scientific Institute of Milano, Milan, Italy
| | - Andrea Calvo
- 'Rita Levi Montalcini' Department of Neuroscience, ALS Centre, University of Torino, Turin, Italy
| | - Federico Verde
- Department of Neurology, IRCCS Istituto Auxologico Italiano, Milan, Italy
- Department of Pathophysiology and Transplantation, 'Dino Ferrari' Center, Università degli Studi di Milano, Milan, Italy
| | - Safa Al-Sarraj
- Maurice Wohl Clinical Neuroscience Institute, King's College London, Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, London, UK
| | - Andrew King
- Maurice Wohl Clinical Neuroscience Institute, King's College London, Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, London, UK
| | - Daniela Calini
- Department of Neurology, IRCCS Istituto Auxologico Italiano, Milan, Italy
| | | | - Frank Baas
- Department of Clinical Genetics, Academic Medical Centre, University of Amsterdam, Amsterdam, the Netherlands
| | - Anneke J van der Kooi
- Department of Neurogenetics and Neurology, Academic Medical Centre, University of Amsterdam, Amsterdam, the Netherlands
| | - Marianne de Visser
- Department of Neurogenetics and Neurology, Academic Medical Centre, University of Amsterdam, Amsterdam, the Netherlands
| | - Anneloor L M A Ten Asbroek
- Department of Clinical Genetics, Academic Medical Centre, University of Amsterdam, Amsterdam, the Netherlands
| | - Peter C Sapp
- Department of Neurology, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Diane McKenna-Yasek
- Department of Neurology, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Meraida Polak
- Department of Neurology, Emory University, Atlanta, Georgia, USA
| | - Seneshaw Asress
- Department of Neurology, Emory University, Atlanta, Georgia, USA
| | - José Luis Muñoz-Blanco
- Unidad de ELA, Instituto de Investigación Hospital Gregorio Marañón de Madrid, Madrid, Spain
| | - Tim M Strom
- Institute of Human Genetics, Helmholtz Zentrum München-German Research Center for Environmental Health, Neuherberg, Germany
| | - Thomas Meitinger
- Institute of Human Genetics, Technische Universität München, Munich, Germany
| | | | - Giuseppe Lauria
- 3rd Neurology Unit, Motor Neuron Diseases Center, Fondazione IRCCS Istituto Neurologico 'Carlo Besta', Milan, Italy
| | - Kelly L Williams
- Faculty of Medicine and Health Sciences, Macquarie University, Sydney, New South Wales, Australia
| | - P Nigel Leigh
- Trafford Centre for Medical Research, Brighton and Sussex Medical School, Falmer, UK
| | - Garth A Nicholson
- Faculty of Medicine and Health Sciences, Macquarie University, Sydney, New South Wales, Australia
- ANZAC Research Institute, Concord Hospital, University of Sydney, Sydney, New South Wales, Australia
| | - Ian P Blair
- Faculty of Medicine and Health Sciences, Macquarie University, Sydney, New South Wales, Australia
| | - Claire S Leblond
- Montreal Neurological Institute, Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada
| | - Patrick A Dion
- Montreal Neurological Institute, Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada
| | - Guy A Rouleau
- Montreal Neurological Institute, Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada
| | - Hardev Pall
- Institute of Clinical Studies, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, UK
- Department of Neurology, Queen Elizabeth Hospital Birmingham, Edgbaston, Birmingham, UK
| | - Pamela J Shaw
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Martin R Turner
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Kevin Talbot
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Franco Taroni
- Unit of Genetics of Neurodegenerative and Metabolic Diseases, Fondazione IRCCS Istituto Neurologico 'Carlo Besta', Milan, Italy
| | - Kevin B Boylan
- Department of Neurology, Mayo Clinic Florida, Jacksonville, Florida, USA
| | | | - Rosa Rademakers
- Department of Neuroscience, Mayo Clinic, Jacksonville, Florida, USA
| | - Jesús Esteban-Pérez
- Unidad de ELA, Instituto de Investigación Hospital 12 de Octubre de Madrid, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER) U-723, Madrid, Spain
| | - Alberto García-Redondo
- Unidad de ELA, Instituto de Investigación Hospital 12 de Octubre de Madrid, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER) U-723, Madrid, Spain
| | - Phillip Van Damme
- Laboratory of Neurobiology, Department of Neurosciences, KU Leuven and Vesalius Research Centre, VIB, Leuven, Belgium
- Department of Neurology, University Hospitals, Leuven, Belgium
| | - Wim Robberecht
- Laboratory of Neurobiology, Department of Neurosciences, KU Leuven and Vesalius Research Centre, VIB, Leuven, Belgium
- Department of Neurology, University Hospitals, Leuven, Belgium
| | - Adriano Chio
- 'Rita Levi Montalcini' Department of Neuroscience, ALS Centre, University of Torino, Turin, Italy
| | - Cinzia Gellera
- Unit of Genetics of Neurodegenerative and Metabolic Diseases, Fondazione IRCCS Istituto Neurologico 'Carlo Besta', Milan, Italy
| | - Carsten Drepper
- Institute of Clinical Neurobiology, University Hospital Würzburg, Würzburg, Germany
- Department of Child and Adolescent Psychiatry, University Hospital of Würzburg, Würzburg, Germany
| | - Michael Sendtner
- Institute of Clinical Neurobiology, University Hospital Würzburg, Würzburg, Germany
| | - Antonia Ratti
- Department of Neurology, IRCCS Istituto Auxologico Italiano, Milan, Italy
- Department of Pathophysiology and Transplantation, 'Dino Ferrari' Center, Università degli Studi di Milano, Milan, Italy
| | - Jonathan D Glass
- Department of Neurology, Emory University, Atlanta, Georgia, USA
| | - Jesús S Mora
- ALS Unit/Neurology, Hospital San Rafael, Madrid, Spain
| | - Nazli A Basak
- NDAL, Department of Molecular Biology and Genetics, Bogazici University, Istanbul, Turkey
| | - Orla Hardiman
- Academic Unit of Neurology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | | | - Peter M Andersen
- Department of Pharmacology and Clinical Neuroscience, Umeå University, Umeå, Sweden
| | | | - Robert H Brown
- Department of Neurology, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Ammar Al-Chalabi
- Maurice Wohl Clinical Neuroscience Institute, King's College London, Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, London, UK
| | - Vincenzo Silani
- Department of Neurology, IRCCS Istituto Auxologico Italiano, Milan, Italy
- Department of Pathophysiology and Transplantation, 'Dino Ferrari' Center, Università degli Studi di Milano, Milan, Italy
| | - Christopher E Shaw
- Maurice Wohl Clinical Neuroscience Institute, King's College London, Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, London, UK
| | - Leonard H van den Berg
- Department of Neurology Brain Centre, Brain Centre Rudolf Magnus, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Jan H Veldink
- Department of Neurology Brain Centre, Brain Centre Rudolf Magnus, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - John E Landers
- Department of Neurology, University of Massachusetts Medical School, Worcester, Massachusetts, USA
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