1. Whole genome sequencing analysis reveals post-zygotic mutation variability in monozygotic twins discordant for amyotrophic lateral sclerosis
- Author
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Tazelaar, Gijs H.P., Hop, Paul J., Seelen, Meinie, van Vugt, Joke J.F.A., van Rheenen, Wouter, Kool, Lindy, van Eijk, Kristel R., Gijzen, Marleen, Dooijes, Dennis, Moisse, Matthieu, Calvo, Andrea, Moglia, Cristina, Brunetti, Maura, Canosa, Antonio, Nordin, Angelica, Pardina, Jesus S. Mora, Ravits, John, Al-Chalabi, Ammar, Chio, Adriano, McLaughlin, Russell L., Hardiman, Orla, Van Damme, Philip, de Carvalho, Mamede, Neuwirth, Christoph, Weber, Markus, Andersen, Peter M., van den Berg, Leonard H., Veldink, Jan H., van Es, Michael A., Tazelaar, Gijs H.P., Hop, Paul J., Seelen, Meinie, van Vugt, Joke J.F.A., van Rheenen, Wouter, Kool, Lindy, van Eijk, Kristel R., Gijzen, Marleen, Dooijes, Dennis, Moisse, Matthieu, Calvo, Andrea, Moglia, Cristina, Brunetti, Maura, Canosa, Antonio, Nordin, Angelica, Pardina, Jesus S. Mora, Ravits, John, Al-Chalabi, Ammar, Chio, Adriano, McLaughlin, Russell L., Hardiman, Orla, Van Damme, Philip, de Carvalho, Mamede, Neuwirth, Christoph, Weber, Markus, Andersen, Peter M., van den Berg, Leonard H., Veldink, Jan H., and van Es, Michael A.
- Abstract
Amyotrophic lateral sclerosis is a heterogeneous, fatal neurodegenerative disease, characterized by motor neuron loss and in 50% of cases also by cognitive and/or behavioral changes. Mendelian forms of ALS comprise approximately 10-15% of cases. The majority is however considered sporadic, but also with a high contribution of genetic risk factors. To explore the contribution of somatic mutations and/or epigenetic changes to disease risk, we performed whole genome sequencing and methylation analyses using samples from multiple tissues on a cohort of 26 monozygotic twins discordant for ALS, followed by in-depth validation and replication experiments. The results of these analyses implicate several mechanisms in ALS pathophysiology, which include a role for de novo mutations, defects in DNA damage repair and accelerated aging.
- Published
- 2023
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