No mutations in hnRNPA1 and hnRNPA2B1 in Dutch patients with amyotrophic lateral sclerosis, frontotemporal dementia, and inclusion body myopathy

Meinie Seelen, Anne E. Visser, Daniel J. Overste, Hong J. Kim, A. Palud, Tsz H. Wong, John C. van Swieten, Philip Scheltens, Nicol C. Voermans, Frank Baas, J. M. B. V. de Jong, Anneke J. van der Kooi, Marianne de Visser, Jan H. Veldink, J. Paul Taylor, Michael A. van Es, Leonard H. van den Berg

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Inclusion body myopathy (IBM) associated with Paget disease of the bone, frontotemporal dementia (FTD), and amyotrophic lateral sclerosis (ALS), sometimes called IBMPFD/ALS or multi system proteinopathy, is a rare, autosomal dominant disorder characterized by progressive degeneration of muscle, brain, motor neurons, and bone with prominent TDP-43 pathology. Recently, 2 novel genes for multi system proteinopathy were discovered; heterogenous nuclear ribonucleoprotein (hnRNP) A1 and A2B1. Subsequently, a mutation in hnRNPA1 was also identified in a pedigree with autosomal dominant familial ALS. The genetic evidence for ALS and other neurodegenerative diseases is still insufficient. We therefore sequenced the prion-like domain of these genes in 135 familial ALS, 1084 sporadic ALS, 68 familial FTD, 74 sporadic FTD, and 31 sporadic IBM patients in a Dutch population. We did not identify any mutations in these genes in our cohorts. Mutations in hnRNPA1 and hnRNPA2B1 prove to be a rare cause of ALS, FTD, and IBM in the Netherlands
Original languageEnglish
Pages (from-to)1956.e9-1956.e11
JournalNeurobiology of aging
Issue number8
Publication statusPublished - 2014

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