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Recent years have seen enormous progress in the field of advanced therapeutics for the progressive muscle wasting disease Duchenne muscular dystrophy (DMD). In particular, four antisense oligonucleotide (ASO) therapies targeting various DMD-causing mutations have achieved FDA approval, marking major milestones in the treatment of this disease. These compounds are designed to induce alternative splicing events that restore the translation reading frame of the dystrophin gene, leading to the generation of internally-deleted, but mostly functional, pseudodystrophin proteins with the potential to compensate for the genetic loss of dystrophin. However, the efficacy of these compounds is very limited, with delivery remaining a key obstacle to effective therapy. There is therefore an urgent need for improved ASO technologies with better efficacy, and with applicability to a wider range of patient mutations. Here we discuss recent developments in ASO therapies for DMD, and future prospects with a focus on ASO chemical modification and bioconjugation strategies.

Original publication

DOI

10.1007/s10974-024-09688-2

Type

Journal

J Muscle Res Cell Motil

Publication Date

30/01/2025

Keywords

Antisense oligonucleotide, DMD, Duchenn muscular dystrophy, Dystrophin, Exon skipping