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Heterozygous DHTKD1 Variants in Two European Cohorts of Amyotrophic Lateral Sclerosis Patients

Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disorder characterized by progressive upper and lower motor neuron (LMN) loss. As ALS and other neurodegenerative diseases share genetic risk factors, we performed whole-exome sequencing in ALS patients focusing our analysis on genes i...

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Autores principales: Osmanovic, Alma, Gogol, Isabel, Martens, Helge, Widjaja, Maylin, Müller, Kathrin, Schreiber-Katz, Olivia, Feuerhake, Friedrich, Langhans, Claus-Dieter, Schmidt, Gunnar, Andersen, Peter M., Ludolph, Albert C., Weishaupt, Jochen H., Brand, Frank, Petri, Susanne, Weber, Ruthild G.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8774751/
https://www.ncbi.nlm.nih.gov/pubmed/35052424
http://dx.doi.org/10.3390/genes13010084
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author Osmanovic, Alma
Gogol, Isabel
Martens, Helge
Widjaja, Maylin
Müller, Kathrin
Schreiber-Katz, Olivia
Feuerhake, Friedrich
Langhans, Claus-Dieter
Schmidt, Gunnar
Andersen, Peter M.
Ludolph, Albert C.
Weishaupt, Jochen H.
Brand, Frank
Petri, Susanne
Weber, Ruthild G.
author_facet Osmanovic, Alma
Gogol, Isabel
Martens, Helge
Widjaja, Maylin
Müller, Kathrin
Schreiber-Katz, Olivia
Feuerhake, Friedrich
Langhans, Claus-Dieter
Schmidt, Gunnar
Andersen, Peter M.
Ludolph, Albert C.
Weishaupt, Jochen H.
Brand, Frank
Petri, Susanne
Weber, Ruthild G.
author_sort Osmanovic, Alma
collection PubMed
description Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disorder characterized by progressive upper and lower motor neuron (LMN) loss. As ALS and other neurodegenerative diseases share genetic risk factors, we performed whole-exome sequencing in ALS patients focusing our analysis on genes implicated in neurodegeneration. Thus, variants in the DHTKD1 gene encoding dehydrogenase E1 and transketolase domain containing 1 previously linked to 2-aminoadipic and 2-oxoadipic aciduria, Charcot-Marie-Tooth (CMT) disease type 2, and spinal muscular atrophy (SMA) were identified. In two independent European ALS cohorts (n = 643 cases), 10 sporadic cases of 225 (4.4%) predominantly sporadic patients of cohort 1, and 12 familial ALS patients of 418 (2.9%) ALS families of cohort 2 harbored 14 different rare heterozygous DHTKD1 variants predicted to be deleterious. Four DHTKD1 variants were previously described pathogenic variants, seven were recurrent, and eight were located in the E1_dh dehydrogenase domain. Nonsense variants located in the E1_dh domain were significantly more prevalent in ALS patients versus controls. The phenotype of ALS patients carrying DHTKD1 variants partially overlapped with CMT and SMA by presence of sensory impairment and a higher frequency of LMN-predominant cases. Our results argue towards rare heterozygous DHTKD1 variants as potential contributors to ALS phenotype and, possibly, pathogenesis.
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spelling pubmed-87747512022-01-21 Heterozygous DHTKD1 Variants in Two European Cohorts of Amyotrophic Lateral Sclerosis Patients Osmanovic, Alma Gogol, Isabel Martens, Helge Widjaja, Maylin Müller, Kathrin Schreiber-Katz, Olivia Feuerhake, Friedrich Langhans, Claus-Dieter Schmidt, Gunnar Andersen, Peter M. Ludolph, Albert C. Weishaupt, Jochen H. Brand, Frank Petri, Susanne Weber, Ruthild G. Genes (Basel) Article Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disorder characterized by progressive upper and lower motor neuron (LMN) loss. As ALS and other neurodegenerative diseases share genetic risk factors, we performed whole-exome sequencing in ALS patients focusing our analysis on genes implicated in neurodegeneration. Thus, variants in the DHTKD1 gene encoding dehydrogenase E1 and transketolase domain containing 1 previously linked to 2-aminoadipic and 2-oxoadipic aciduria, Charcot-Marie-Tooth (CMT) disease type 2, and spinal muscular atrophy (SMA) were identified. In two independent European ALS cohorts (n = 643 cases), 10 sporadic cases of 225 (4.4%) predominantly sporadic patients of cohort 1, and 12 familial ALS patients of 418 (2.9%) ALS families of cohort 2 harbored 14 different rare heterozygous DHTKD1 variants predicted to be deleterious. Four DHTKD1 variants were previously described pathogenic variants, seven were recurrent, and eight were located in the E1_dh dehydrogenase domain. Nonsense variants located in the E1_dh domain were significantly more prevalent in ALS patients versus controls. The phenotype of ALS patients carrying DHTKD1 variants partially overlapped with CMT and SMA by presence of sensory impairment and a higher frequency of LMN-predominant cases. Our results argue towards rare heterozygous DHTKD1 variants as potential contributors to ALS phenotype and, possibly, pathogenesis. MDPI 2021-12-29 /pmc/articles/PMC8774751/ /pubmed/35052424 http://dx.doi.org/10.3390/genes13010084 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Osmanovic, Alma
Gogol, Isabel
Martens, Helge
Widjaja, Maylin
Müller, Kathrin
Schreiber-Katz, Olivia
Feuerhake, Friedrich
Langhans, Claus-Dieter
Schmidt, Gunnar
Andersen, Peter M.
Ludolph, Albert C.
Weishaupt, Jochen H.
Brand, Frank
Petri, Susanne
Weber, Ruthild G.
Heterozygous DHTKD1 Variants in Two European Cohorts of Amyotrophic Lateral Sclerosis Patients
title Heterozygous DHTKD1 Variants in Two European Cohorts of Amyotrophic Lateral Sclerosis Patients
title_full Heterozygous DHTKD1 Variants in Two European Cohorts of Amyotrophic Lateral Sclerosis Patients
title_fullStr Heterozygous DHTKD1 Variants in Two European Cohorts of Amyotrophic Lateral Sclerosis Patients
title_full_unstemmed Heterozygous DHTKD1 Variants in Two European Cohorts of Amyotrophic Lateral Sclerosis Patients
title_short Heterozygous DHTKD1 Variants in Two European Cohorts of Amyotrophic Lateral Sclerosis Patients
title_sort heterozygous dhtkd1 variants in two european cohorts of amyotrophic lateral sclerosis patients
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8774751/
https://www.ncbi.nlm.nih.gov/pubmed/35052424
http://dx.doi.org/10.3390/genes13010084
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