Evidence map›Paper›PMID 25369768›Full record

ArticleMolecular therapy : the journal of the American Society of Gene Therapy2015

PTEN depletion decreases disease severity and modestly prolongs survival in a mouse model of spinal muscular atrophy.

Daniel Little, Chiara F Valori, Chantal A Mutsaers, Ellen J Bennett, Matthew Wyles, Basil Sharrack, Pamela J Shaw, Thomas H Gillingwater, Mimoun Azzouz, Ke Ning

Open access · hybridAbstract read
In one paragraph

Article in Molecular therapy : the journal of the American Society of Gene Therapy, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 3 pooled it
4.0field-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

33 citing papers in PubMed, 3 syntheses or guidelines pooled it, 52 citations in OpenAlex.

  1. Pooled it
  2. Drug treatment for spinal muscular atrophy types II and III.The Cochrane database of systematic reviews · 2020
    Pooled it
  3. Drug treatment for spinal muscular atrophy type I.The Cochrane database of systematic reviews · 2019
    Pooled it
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  12. The Importance of Digging into the Genetics ofInternational journal of molecular sciences · 2021
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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 at 5 institutions in 3 countries.

Daniel LittleDepartment of Neuroscience, Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, Sheffield, UK.
Chiara F Valori1] Department of Neuroscience, Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, Sheffield, UK [2] Present address: German Centre for Neurodegenerative Diseases (DZNE), Paul-Ehrlich Strasse, Tübingen, Germany.
Chantal A MutsaersCentre for Integrative Physiology & Euan MacDonald Centre for Motor Neurone Disease Research, University of Edinburgh, Edinburgh, UK.
Ellen J BennettDepartment of Neuroscience, Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, Sheffield, UK.
Matthew WylesDepartment of Neuroscience, Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, Sheffield, UK.
Basil SharrackAcademic Department of Neurology, Royal Hallamshire Hospital, Sheffield Teaching Hospital Foundation Trust, Sheffield, UK.
Pamela J ShawDepartment of Neuroscience, Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, Sheffield, UK.
Thomas H GillingwaterCentre for Integrative Physiology & Euan MacDonald Centre for Motor Neurone Disease Research, University of Edinburgh, Edinburgh, UK.
Mimoun Azzouz1] Department of Neuroscience, Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, Sheffield, UK [2] Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia.
Ke NingDepartment of Neuroscience, Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, Sheffield, UK.
University of Sheffield · GBGerman Center for Neurodegenerative Diseases · DEMRC Centre for Regenerative Medicine · GBRoyal Hallamshire Hospital · GBUniversity of Edinburgh · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Spinal muscular atrophy (SMA) is the second most common genetic cause of death in childhood. However, no effective treatment is available to halt disease progression. SMA is caused by mutations in the survival motor neuron 1 (SMN1) gene. We previously reported that PTEN depletion leads to an increase in survival of SMN-deficient motor neurons. Here, we aimed to establish the impact of PTEN modulation in an SMA mouse model in vivo. Initial experiments using intramuscular delivery of adeno-associated vector serotype 6 (AAV6) expressing shRNA against PTEN in an established mouse model of severe SMA (SMNΔ7) demonstrated the ability to ameliorate the severity of neuromuscular junction pathology. Subsequently, we developed self-complementary AAV9 expressing siPTEN (scAAV9-siPTEN) to allow evaluation of the effect of systemic suppression of PTEN on the disease course of SMA in vivo. Treatment with a single injection of scAAV9-siPTEN at postnatal day 1 resulted in a modest threefold extension of the lifespan of SMNΔ7 mice, increasing mean survival to 30 days, compared to 10 days in untreated mice. Our data revealed that systemic PTEN depletion is an important disease modifier in SMNΔ7 mice, and therapies aimed at lowering PTEN expression may therefore offer a potential therapeutic strategy for SMA.

Indexed as

AnimalsCell SurvivalDependovirusDisease Models, AnimalGene ExpressionGene Knockdown TechniquesGene SilencingGenetic TherapyGenetic VectorsInjections, IntramuscularMiceMice, KnockoutMotor ActivityMotor NeuronsMuscle, SkeletalMuscular Atrophy, SpinalPTEN PhosphohydrolaseRNA, Small Interfering

Identifiers

PMID25369768
PMCPMC4445616
OpenAlexW1978700598

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.