The present disclosure relates to Machado-Joseph
disease (MJD), or
spinocerebellar ataxia type 3 (SCA3), an autosomal dominantly inherited neurodegenerative disorder that is caused by an over-repetition of the polyglutamine-codifying region in the ataxin-3 (ATX7V3)
gene. Expanded ATXN3 is prone to aggregate and disturbs diverse cellular systems, ultimately leading to
cell dysfunction and death in specific neuronal populations. To date, no treatment able to reverse or stall MJD / SCA3 progression has been developed. Strategies based on the suppression of the deleterious
gene products have demonstrated promising results in pre-clinical studies. Nonetheless, these strategies do not target the
root cause of the
disease, producing an incomplete and / or transient
therapeutic effect in target cells or tissues. Recently,
gene-based therapeutics, including the bacterial clustered regularly interspaced short palindromic repeat (
CRISPR) systems for gene edition, have been successfully used to permanently inactivate and correct
disease-related genes, holding promise for the development of a definitive cure for inherited diseases.