Evidence map›Paper›PMID 25350581›Full record

ArticleMolecular therapy. Nucleic acids2014

Antisense Oligonucleotide-mediated Suppression of Muscle Glycogen Synthase 1 Synthesis as an Approach for Substrate Reduction Therapy of Pompe Disease.

Nicholas P Clayton, Carol A Nelson, Timothy Weeden, Kristin M Taylor, Rodney J Moreland, Ronald K Scheule, Lucy Phillips, Andrew J Leger, Seng H Cheng, Bruce M Wentworth

Open access · goldAbstract read
In one paragraph

Article in Molecular therapy. Nucleic acids, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 1 pooled it
3.8field-weighted citation impact, top 6% 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

44 citing papers in PubMed, 1 synthesis or guideline pooled it, 71 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Review
  5. Review
  6. Article
  7. Expansion of Splice-Switching Therapy with Antisense Oligonucleotides.International journal of molecular sciences · 2025
    Review
  8. Management of Pompe disease alongside and beyond ERT: a narrative review.Acta myologica : myopathies and cardiomyopathies : official journal of the Mediterranean Society of Myology · 2025
    Review
  9. Review
  10. Splice-Modulating Antisense Oligonucleotides as Therapeutics for Inherited Metabolic Diseases.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2024
    Review
  11. Review
  12. Article
  13. Review
  14. Pompe Disease: a Clinical, Diagnostic, and Therapeutic Overview.Current treatment options in neurology · 2022
    Article
  15. Article
  16. Molecular therapy. Methods & clinical development · 2022
    Article
  17. Therapeutic Strategies For Tay-Sachs Disease.Frontiers in pharmacology · 2022
    Review
  18. Pharmacological Chaperone Therapy for Pompe Disease.Molecules (Basel, Switzerland) · 2021
    Review
  19. Article
  20. Article
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

10 authors.

Nicholas P ClaytonGenzyme, A Sanofi Company, Framingham, Massachusetts, USA.
Carol A NelsonTranslational Medicine Consulting, Westford, Massachusetts, USA.
Timothy WeedenGenzyme, A Sanofi Company, Framingham, Massachusetts, USA.
Kristin M TaylorGenzyme, A Sanofi Company, Framingham, Massachusetts, USA.
Rodney J MorelandGenzyme, A Sanofi Company, Framingham, Massachusetts, USA.
Ronald K ScheuleGenzyme, A Sanofi Company, Framingham, Massachusetts, USA.
Lucy PhillipsGenzyme, A Sanofi Company, Framingham, Massachusetts, USA.
Andrew J LegerGenzyme, A Sanofi Company, Framingham, Massachusetts, USA.
Seng H ChengGenzyme, A Sanofi Company, Framingham, Massachusetts, USA.
Bruce M WentworthGenzyme, A Sanofi Company, Framingham, Massachusetts, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pompe disease is an autosomal recessive disorder caused by a deficiency of acid α-glucosidase (GAA; EC 3.2.1.20) and the resultant progressive lysosomal accumulation of glycogen in skeletal and cardiac muscles. Enzyme replacement therapy using recombinant human GAA (rhGAA) has proven beneficial in addressing several aspects of the disease such as cardiomyopathy and aberrant motor function. However, residual muscle weakness, hearing loss, and the risks of arrhythmias and osteopenia persist despite enzyme therapy. Here, we evaluated the relative merits of substrate reduction therapy (by inhibiting glycogen synthesis) as a potential adjuvant strategy. A phosphorodiamidate morpholino oligonucleotide (PMO) designed to invoke exon skipping and premature stop codon usage in the transcript for muscle specific glycogen synthase (Gys1) was identified and conjugated to a cell penetrating peptide (GS-PPMO) to facilitate PMO delivery to muscle. GS-PPMO systemic administration to Pompe mice led to a dose-dependent decrease in glycogen synthase transcripts in the quadriceps, and the diaphragm but not the liver. An mRNA response in the heart was seen only at the higher dose tested. Associated with these decreases in transcript levels were correspondingly lower tissue levels of muscle specific glycogen synthase and activity. Importantly, these reductions resulted in significant decreases in the aberrant accumulation of lysosomal glycogen in the quadriceps, diaphragm, and heart of Pompe mice. Treatment was without any overt toxicity, supporting the notion that substrate reduction by GS-PPMO-mediated inhibition of muscle specific glycogen synthase represents a viable therapeutic strategy for Pompe disease after further development.

Identifiers

PMID25350581
PMCPMC4217081
OpenAlexW2010983151

What OpenQuestion holds

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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.