» Articles » PMID: 38392311

The Importance of Offering Exome or Genome Sequencing in Adult Neuromuscular Clinics

Overview
Journal Biology (Basel)
Publisher MDPI
Specialty Biology
Date 2024 Feb 23
PMID 38392311
Authors
Affiliations
Soon will be listed here.
Abstract

Advances in gene-specific therapeutics for patients with neuromuscular disorders (NMDs) have brought increased attention to the importance of genetic diagnosis. Genetic testing practices vary among adult neuromuscular clinics, with multi-gene panel testing currently being the most common approach; follow-up testing using broad-based methods, such as exome or genome sequencing, is less consistently offered. Here, we use five case examples to illustrate the unique ability of broad-based testing to improve diagnostic yield, resulting in identification of neuropathy, -related disease, -ALS, related progressive gait decline and spasticity, and -related cerebellar ataxia, deafness, narcolepsy, and hereditary sensory neuropathy type 1E. We describe in each case the technological advantages that enabled identification of the causal gene, and the resultant clinical and personal implications for the patient, demonstrating the importance of offering exome or genome sequencing to adults with NMDs.

References
1.
Koczwara K, Lake N, DeSimone A, Lek M . Neuromuscular disorders: finding the missing genetic diagnoses. Trends Genet. 2022; 38(9):956-971. DOI: 10.1016/j.tig.2022.07.001. View

2.
Yokoshi M, Li Q, Yamamoto M, Okada H, Suzuki Y, Kawahara Y . Direct binding of Ataxin-2 to distinct elements in 3' UTRs promotes mRNA stability and protein expression. Mol Cell. 2014; 55(2):186-98. DOI: 10.1016/j.molcel.2014.05.022. View

3.
Wang M, Gomes J, Cashman N, Little J, Krewski D . Intermediate CAG repeat expansion in the ATXN2 gene is a unique genetic risk factor for ALS--a systematic review and meta-analysis of observational studies. PLoS One. 2014; 9(8):e105534. PMC: 4141758. DOI: 10.1371/journal.pone.0105534. View

4.
Neuenschwander A, Thai K, Figueroa K, Pulst S . Amyotrophic lateral sclerosis risk for spinocerebellar ataxia type 2 ATXN2 CAG repeat alleles: a meta-analysis. JAMA Neurol. 2014; 71(12):1529-34. PMC: 4939089. DOI: 10.1001/jamaneurol.2014.2082. View

5.
Bebbington A, Percy A, Christodoulou J, Ravine D, Ho G, Jacoby P . Updating the profile of C-terminal MECP2 deletions in Rett syndrome. J Med Genet. 2009; 47(4):242-8. PMC: 3913726. DOI: 10.1136/jmg.2009.072553. View