Evidence map›Paper›PMID 30396145›Full record

ArticleMolecular therapy. Nucleic acids2018

Shorter Phosphorodiamidate Morpholino Splice-Switching Oligonucleotides May Increase Exon-Skipping Efficacy in DMD.

Ugur Akpulat, Haicui Wang, Kerstin Becker, Adriana Contreras, Terence A Partridge, James S Novak, Sebahattin Cirak

Open access · goldAbstract read
In one paragraph

Article in Molecular therapy. Nucleic acids, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
0.3field-weighted citation impact, top 42% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 9 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Review
  5. Article
  6. 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

7 authors at 4 institutions in 3 countries.

Ugur AkpulatCenter for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne 50931, Germany; Department of Pediatrics, University Hospital Cologne, Cologne 50937, Germany; Department of Medical Biology, Faculty of Medicine, Kastamonu University, Kastamonu 37100, Turkey.
Haicui WangCenter for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne 50931, Germany; Department of Pediatrics, University Hospital Cologne, Cologne 50937, Germany.
Kerstin BeckerCenter for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne 50931, Germany; Department of Pediatrics, University Hospital Cologne, Cologne 50937, Germany.
Adriana ContrerasCenter for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne 50931, Germany; Department of Pediatrics, University Hospital Cologne, Cologne 50937, Germany.
Terence A PartridgeCenter for Genetic Medicine Research, Children's Research Institute, Children's National Health System, Washington, DC 20010, USA; Department of Genomics and Precision Medicine, The George Washington University School of Medicine and Health Sciences, Washington, DC 20010, USA.
James S NovakCenter for Genetic Medicine Research, Children's Research Institute, Children's National Health System, Washington, DC 20010, USA; Department of Genomics and Precision Medicine, The George Washington University School of Medicine and Health Sciences, Washington, DC 20010, USA.
Sebahattin CirakCenter for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne 50931, Germany. Electronic address: sebahattin.cirak@uk-koeln.de.
University of Cologne · DEUniversity Hospital Cologne · DEChildren's National · USGeorge Washington University · US

Funding

Genetics and Genomics of Muscle Postdoctoral Training ProgramT32AR056993 · NIAMS · CHILDREN'S RESEARCH INSTITUTE · PI JAISWAL, JYOTI K, PARTRIDGE, TERENCE A · 2010 to 2019
$2.2M
NIAMS NIH HHS T32 AR056993
6 · The paper itself

Abstract

Duchenne muscular dystrophy is a fatal muscle disease, caused by mutations in DMD, leading to loss of dystrophin expression. Phosphorodiamidate morpholino splice-switching oligonucleotides (PMO-SSOs) have been used to elicit the restoration of a partially functional truncated dystrophin by excluding disruptive exons from the DMD messenger. The 30-mer PMO eteplirsen (EXONDYS51) developed for exon 51 skipping is the first dystrophin-restoring, conditionally FDA-approved drug in history. Clinical trials had shown a dose-dependent variable and patchy dystrophin restoration. The main obstacle for efficient dystrophin restoration is the inadequate uptake of PMOs into skeletal muscle fibers at low doses. The excessive cost of longer PMOs has limited the utilization of higher dosing. We designed shorter 25-mer PMOs directed to the same eteplirsen-targeted region of exon 51 and compared their efficacies in vitro and in vivo in the mdx52 murine model. Our results showed that skipped-dystrophin induction was comparable between the 30-mer PMO sequence of eteplirsen and one of the shorter PMOs, while the other 25-mer PMOs showed lower exon-skipping efficacies. Shorter PMOs would make higher doses economically feasible, and high dosing would result in better drug uptake into muscle, induce higher levels of dystrophin restoration in DMD muscle, and, ultimately, increase the clinical efficacy.

Indexed as

DMDdystrophineteplirsenexondys51exon skippingmdxmyopathyphosphorodiamidate morpholinophosphorothioratePMOshorter PMO-SSOs

Identifiers

PMID30396145
PMCPMC6222172
OpenAlexW2897705813

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

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.