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A short antisense oligonucleotide ameliorates symptoms of severe mouse models of spinal muscular atrophy.

Abstract：

:Recent reports underscore the unparalleled potential of antisense-oligonucleotide (ASO)-based approaches to ameliorate various pathological conditions. However, in vivo studies validating the effectiveness of a short ASO (<10-mer) in the context of a human disease have not been performed. One disease with proven amenability to ASO-based therapy is spinal muscular atrophy (SMA). SMA is a neuromuscular disease caused by loss-of-function mutations in the survival motor neuron 1 (SMN1) gene. Correction of aberrant splicing of the remaining paralog, SMN2, can rescue mouse models of SMA. Here, we report the therapeutic efficacy of an 8-mer ASO (3UP8i) in two severe models of SMA. While 3UP8i modestly improved survival and function in the more severe Taiwanese SMA model, it dramatically increased survival, improved neuromuscular junction pathology, and tempered cardiac deficits in a new, less severe model of SMA. Our results expand the repertoire of ASO-based compounds for SMA therapy, and for the first time, demonstrate the in vivo efficacy of a short ASO in the context of a human disease.

journal_name

Mol Ther Nucleic Acids

journal_title

Molecular therapy. Nucleic acids

authors

Keil JM,Seo J,Howell MD,Hsu WH,Singh RN,DiDonato CJ

doi

10.1038/mtna.2014.23

subject

Has Abstract

pub_date

2014-07-08 00:00:00

pages

e174

issn

2162-2531

pii

mtna201423

journal_volume

3

pub_type

杂志文章

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