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van Doormaal PTC, Ticozzi N, Weishaupt JH, Kenna K, Diekstra FP, Verde F, Andersen PM, Dekker AM, Tiloca C, Marroquin N, Overste DJ, Pensato V, Nürnberg P, Pulit SL, Schellevis RD, Calini D, Altmüller J, Francioli LC, Muller B, Castellotti B, Motameny S, Ratti A, Wolf J, Gellera C, Ludolph AC, van den Berg LH, Kubisch C, Landers JE, Veldink JH, Silani V, Volk AE. The role of de novo mutations in the development of amyotrophic lateral sclerosis. Hum Mutat 2017; 38:1534-1541. [PMID: 28714244 DOI: 10.1002/humu.23295] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 06/21/2017] [Accepted: 07/11/2017] [Indexed: 12/29/2022]
Abstract
The genetic basis combined with the sporadic occurrence of amyotrophic lateral sclerosis (ALS) suggests a role of de novo mutations in disease pathogenesis. Previous studies provided some evidence for this hypothesis; however, results were conflicting: no genes with recurrent occurring de novo mutations were identified and different pathways were postulated. In this study, we analyzed whole-exome data from 82 new patient-parents trios and combined it with the datasets of all previously published ALS trios (173 trios in total). The per patient de novo rate was not higher than expected based on the general population (P = 0.40). We showed that these mutations are not part of the previously postulated pathways, and gene-gene interaction analysis found no enrichment of interacting genes in this group (P = 0.57). Also, we were able to show that the de novo mutations in ALS patients are located in genes already prone for de novo mutations (P < 1 × 10-15 ). Although the individual effect of rare de novo mutations in specific genes could not be assessed, our results indicate that, in contrast to previous hypothesis, de novo mutations in general do not impose a major burden on ALS risk.
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Affiliation(s)
- Perry T C van Doormaal
- Department of Neurology, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Nicola Ticozzi
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milan, Italy.,Department of Pathophysiology and Transplantation, 'Dino Ferrari' Center-Università degli Studi di Milano, Milan, Italy
| | | | - Kevin Kenna
- Department of Neurology, University of Massachusetts Medical School, Worcester, Massachusetts
| | - Frank P Diekstra
- Department of Neurology, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Federico Verde
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milan, Italy.,Department of Pathophysiology and Transplantation, 'Dino Ferrari' Center-Università degli Studi di Milano, Milan, Italy
| | - Peter M Andersen
- Department of Pharmacology and Clinical Neuroscience, Umeå University, Umeå, Sweden
| | - Annelot M Dekker
- Department of Neurology, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Cinzia Tiloca
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milan, Italy
| | | | - Daniel J Overste
- Department of Neurology, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Viviana Pensato
- Unit of Genetics of Neurodegenerative and Metabolic Diseases, Fondazione IRCCS Istituto Neurologico 'Carlo Besta', Milan, Italy
| | - Peter Nürnberg
- Cologne Center for Genomics, University of Cologne, Cologne, Germany.,Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany
| | - Sara L Pulit
- Department of Medical Genetics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Raymond D Schellevis
- Department of Neurology, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Daniela Calini
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milan, Italy
| | - Janine Altmüller
- Cologne Center for Genomics, University of Cologne, Cologne, Germany.,Institute of Human Genetics, University of Cologne, Cologne, Germany
| | - Laurent C Francioli
- Department of Medical Genetics, University Medical Center Utrecht, Utrecht, The Netherlands.,Analytic and Translational Genetics Unit, Massachusetts General Hospital, Boston, Massachusetts.,Program in Medical and Population Genetics, Broad Institute of Harvard and Massachusetts Institute of Technology, Cambridge, Massachusetts
| | | | - Barbara Castellotti
- Unit of Genetics of Neurodegenerative and Metabolic Diseases, Fondazione IRCCS Istituto Neurologico 'Carlo Besta', Milan, Italy
| | - Susanne Motameny
- Cologne Center for Genomics, University of Cologne, Cologne, Germany
| | - Antonia Ratti
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milan, Italy.,Department of Pathophysiology and Transplantation, 'Dino Ferrari' Center-Università degli Studi di Milano, Milan, Italy
| | - Joachim Wolf
- Department of Neurology, Diakonissenkrankenhaus Mannheim, Mannheim, Germany
| | - Cinzia Gellera
- Unit of Genetics of Neurodegenerative and Metabolic Diseases, Fondazione IRCCS Istituto Neurologico 'Carlo Besta', Milan, Italy
| | | | - Leonard H van den Berg
- Department of Neurology, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Christian Kubisch
- Institute of Human Genetics, Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - John E Landers
- Department of Neurology, University of Massachusetts Medical School, Worcester, Massachusetts
| | - Jan H Veldink
- Department of Neurology, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Vincenzo Silani
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milan, Italy.,Department of Pathophysiology and Transplantation, 'Dino Ferrari' Center-Università degli Studi di Milano, Milan, Italy
| | - Alexander E Volk
- Institute of Human Genetics, Medical Centre Hamburg-Eppendorf, Hamburg, Germany
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