Evidence map›Paper›PMID 20823833›Full record

ArticleMolecular therapy : the journal of the American Society of Gene Therapy2010

In-frame dystrophin following exon 51-skipping improves muscle pathology and function in the exon 52-deficient mdx mouse.

Yoshitsugu Aoki, Akinori Nakamura, Toshifumi Yokota, Takashi Saito, Hitoshi Okazawa, Tetsuya Nagata, Shin'ichi Takeda

Open access · bronzeAbstract read
In one paragraph

Article in Molecular therapy : the journal of the American Society of Gene Therapy, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 85 papers.

0numbers the graph read from it
0cells of the map it votes in
85citing papers in PubMed
4.6field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

85 citing papers in PubMed, 135 citations in OpenAlex.

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  11. In Vivo Evaluation of Single- and Multi-Exon-Skipping in mdx52 Mice.Methods in molecular biology (Clifton, N.J.) · 2025
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  13. Review
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  19. In Vivo Evaluation of Exon 51 Skipping in hDMD/Dmd-null Mice.Methods in molecular biology (Clifton, N.J.) · 2023
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  20. Article

25 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 2 countries.

Yoshitsugu AokiDepartment of Molecular Therapy, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan.
Akinori Nakamura
Toshifumi Yokota
Takashi Saito
Hitoshi Okazawa
Tetsuya Nagata
Shin'ichi Takeda
National Center of Neurology and Psychiatry · JPChildren's National · USTokyo Medical and Dental University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A promising therapeutic approach for Duchenne muscular dystrophy (DMD) is exon skipping using antisense oligonucleotides (AOs). In-frame deletions of the hinge 3 region of the dystrophin protein, which is encoded by exons 50 and 51, are predicted to cause a variety of phenotypes. Here, we performed functional analyses of muscle in the exon 52-deleted mdx (mdx52) mouse, to predict the function of in-frame dystrophin following exon 51-skipping, which leads to a protein lacking most of hinge 3. A series of AOs based on phosphorodiamidate morpholino oligomers was screened by intramuscular injection into mdx52 mice. The highest splicing efficiency was generated by a two-oligonucleotide cocktail targeting both the 5' and 3' splice sites of exon 51. After a dose-escalation study, we systemically delivered this cocktail into mdx52 mice seven times at weekly intervals. This induced 20-30% of wild-type (WT) dystrophin expression levels in all muscles, and was accompanied by amelioration of the dystrophic pathology and improvement of skeletal muscle function. Because the structure of the restored in-frame dystrophin resembles human dystrophin following exon 51-skipping, our results are encouraging for the ongoing clinical trials for DMD. Moreover, the therapeutic dose required can provide a suggestion of the theoretical equivalent dose for humans.

Indexed as

Genetic TherapyRNA SplicingAnimalsBiomarkersBlotting, WesternCreatine KinaseDystrophinExonsGene Expression ProfilingImmunoenzyme TechniquesMaleMiceMice, Inbred C57BLMice, Inbred mdxMuscle, SkeletalMuscular Dystrophy, DuchenneBiomarkersCreatine KinaseDystrophinOligonucleotides, AntisenseRNA, Messenger

Identifiers

PMID20823833
PMCPMC2990521
OpenAlexW2018499417

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.