Genetic testing for monogenic forms of motor neuron disease/amyotrophic lateral sclerosis in unaffected family members

Motor neuron disease (MND), also referred to as amyotrophic lateral sclerosis (ALS), is a monogenic disease in a minority of cases, with autosomal dominant inheritance. Increasing numbers of people with MND are requesting genetic testing, and indeed receiving a genetic diagnosis. Consequently, reque...

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Main Authors: Howard, J, Chaouch, A, Douglas, AGL, MacLeod, R, Roggenbuck, J, McNeill, A
Format: Journal article
Language:English
Published: Springer Nature [academic journals on nature.com] 2024
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author Howard, J
Chaouch, A
Douglas, AGL
MacLeod, R
Roggenbuck, J
McNeill, A
author_facet Howard, J
Chaouch, A
Douglas, AGL
MacLeod, R
Roggenbuck, J
McNeill, A
author_sort Howard, J
collection OXFORD
description Motor neuron disease (MND), also referred to as amyotrophic lateral sclerosis (ALS), is a monogenic disease in a minority of cases, with autosomal dominant inheritance. Increasing numbers of people with MND are requesting genetic testing, and indeed receiving a genetic diagnosis. Consequently, requests for genetic counselling and predictive testing (i.e. of unaffected family members) are similarly expected to rise, alongside pre-symptomatic clinical trials. Despite this, there is no evidence-based guideline for predictive genetic testing in MND. This paper provides an overview of the genomic basis of MND, focusing specifically on the most common monogenic causes of MND. It then lays out the complexities of MND predictive testing, including the genetic landscape characterised by incomplete penetrance, clinical and genetic heterogeneity, and an oligogenic mechanism of pathogenesis in some cases. Additionally, there is limited research on the psychosocial impact of predictive genetic testing for MND, with studies suggesting potential difficulty in adjusting to the news, in part due to a lack of support and follow-up. This underscores a case for evidence-based, disease-specific guidance for predictive testing in MND.
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spelling oxford-uuid:ef93ef8b-b6f4-415b-a435-b335797de85c2025-01-09T20:05:20ZGenetic testing for monogenic forms of motor neuron disease/amyotrophic lateral sclerosis in unaffected family membersJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:ef93ef8b-b6f4-415b-a435-b335797de85cEnglishJisc Publications RouterSpringer Nature [academic journals on nature.com]2024Howard, JChaouch, ADouglas, AGLMacLeod, RRoggenbuck, JMcNeill, AMotor neuron disease (MND), also referred to as amyotrophic lateral sclerosis (ALS), is a monogenic disease in a minority of cases, with autosomal dominant inheritance. Increasing numbers of people with MND are requesting genetic testing, and indeed receiving a genetic diagnosis. Consequently, requests for genetic counselling and predictive testing (i.e. of unaffected family members) are similarly expected to rise, alongside pre-symptomatic clinical trials. Despite this, there is no evidence-based guideline for predictive genetic testing in MND. This paper provides an overview of the genomic basis of MND, focusing specifically on the most common monogenic causes of MND. It then lays out the complexities of MND predictive testing, including the genetic landscape characterised by incomplete penetrance, clinical and genetic heterogeneity, and an oligogenic mechanism of pathogenesis in some cases. Additionally, there is limited research on the psychosocial impact of predictive genetic testing for MND, with studies suggesting potential difficulty in adjusting to the news, in part due to a lack of support and follow-up. This underscores a case for evidence-based, disease-specific guidance for predictive testing in MND.
spellingShingle Howard, J
Chaouch, A
Douglas, AGL
MacLeod, R
Roggenbuck, J
McNeill, A
Genetic testing for monogenic forms of motor neuron disease/amyotrophic lateral sclerosis in unaffected family members
title Genetic testing for monogenic forms of motor neuron disease/amyotrophic lateral sclerosis in unaffected family members
title_full Genetic testing for monogenic forms of motor neuron disease/amyotrophic lateral sclerosis in unaffected family members
title_fullStr Genetic testing for monogenic forms of motor neuron disease/amyotrophic lateral sclerosis in unaffected family members
title_full_unstemmed Genetic testing for monogenic forms of motor neuron disease/amyotrophic lateral sclerosis in unaffected family members
title_short Genetic testing for monogenic forms of motor neuron disease/amyotrophic lateral sclerosis in unaffected family members
title_sort genetic testing for monogenic forms of motor neuron disease amyotrophic lateral sclerosis in unaffected family members
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