ArticleNeurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics2021
Targeting Gys1 with AAV-SaCas9 Decreases Pathogenic Polyglucosan Bodies and Neuroinflammation in Adult Polyglucosan Body and Lafora Disease Mouse Models.
Article in Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.
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35 citing papers in PubMed, 50 citations in OpenAlex.
- Glycogen and Glycosylation: Friends or Foes?Biomolecules · 2026Review
- Unifying the Communities of Early-Onset Glycogen Storage Disease Type IV and Adult Polyglucosan Body Disease Through a Genetic Prevalence Study ofJIMD reports · 2026Article
- When gene replacement becomes a double-edged sword: Guardrails for precision neurotherapeutics in Lafora disease.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2026Article
- Lafora disease gene therapy: EPM2A but not EPM2B overexpression results in Lafora body formation.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2026Article
- Advances in gene therapy for Lafora disease: Intravenous recombinant adeno-associated virus-mediated delivery of EPM2A and EPM2B genes.Clinical and translational medicine · 2025Article
- Autosomal Recessive Cerebellar Ataxias: Translating Genes to Therapies.Annals of neurology · 2025Review
- Splice-modulating antisense oligonucleotides targeting a pathogenic intronic variant in adult polyglucosan body disease correct mis-splicing and restore enzyme activity in patient cells.Nucleic acids research · 2025Article
- Article
- Clinical genetic analysis of an adult polyglucosan body disease (APBD) family caused by the compound heterozygous variant ofFrontiers in genetics · 2025Article
- Progressive liver disease and dysregulated glycogen metabolism in murine GSD IX γ2 models human disease.Molecular genetics and metabolism · 2024Article
- Neurological glycogen storage diseases and emerging therapeutics.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2024Review
- Gene therapy for Lafora disease in the Epm2aMolecular therapy : the journal of the American Society of Gene Therapy · 2024Article
- Clinicopathologic Dissociation: Robust Lafora Body Accumulation in Malin KO Mice Without Observable Changes in Home-Cage Behavior.The Journal of comparative neurology · 2024Article
- Beneficial Effect of Fingolimod in a Lafora Disease Mouse Model by Preventing Reactive Astrogliosis-Derived Neuroinflammation and Brain Infiltration of T-lymphocytes.Molecular neurobiology · 2024Article
- Natural history study of hepatic glycogen storage disease type IV and comparison to Gbe1ys/ys model.JCI insight · 2024Article
- Article
- Myofiber-type-dependent 'boulder' or 'multitudinous pebble' formations across distinct amylopectinoses.Acta neuropathologica · 2024Article
- Lafora progressive myoclonus epilepsy: Disease mechanism and therapeutic attempts.Journal of biosciences · 2024Review
- Article
- Lafora Disease: A Case Report and Evolving Treatment Advancements.Brain sciences · 2023Article
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10 authors at 1 institution in 1 country.
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Abstract
Many adult and most childhood neurological diseases have a genetic basis. CRISPR/Cas9 biotechnology holds great promise in neurological therapy, pending the clearance of major delivery, efficiency, and specificity hurdles. We applied CRISPR/Cas9 genome editing in its simplest modality, namely inducing gene sequence disruption, to one adult and one pediatric disease. Adult polyglucosan body disease is a neurodegenerative disease resembling amyotrophic lateral sclerosis. Lafora disease is a severe late childhood onset progressive myoclonus epilepsy. The pathogenic insult in both is formation in the brain of glycogen with overlong branches, which precipitates and accumulates into polyglucosan bodies that drive neuroinflammation and neurodegeneration. We packaged Staphylococcus aureus Cas9 and a guide RNA targeting the glycogen synthase gene, Gys1, responsible for brain glycogen branch elongation in AAV9 virus, which we delivered by neonatal intracerebroventricular injection to one mouse model of adult polyglucosan body disease and two mouse models of Lafora disease. This resulted, in all three models, in editing of approximately 17% of Gys1 alleles and a similar extent of reduction of Gys1 mRNA across the brain. The latter led to approximately 50% reductions of GYS1 protein, abnormal glycogen accumulation, and polyglucosan bodies, as well as ameliorations of neuroinflammatory markers in all three models. Our work represents proof of principle for virally delivered CRISPR/Cas9 neurotherapeutics in an adult-onset (adult polyglucosan body) and a childhood-onset (Lafora) neurological diseases.
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