Evidence map›Paper›PMID 26044557›Full record

ArticleAnnals of neurology2015

C9orf72 ablation in mice does not cause motor neuron degeneration or motor deficits.

Max Koppers, Anna M Blokhuis, Henk-Jan Westeneng, Margo L Terpstra, Caroline A C Zundel, Renata Vieira de Sá, Raymond D Schellevis, Adrian J Waite, Derek J Blake, Jan H Veldink and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Annals of neurology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 166 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
166citing papers in PubMed, 2 pooled it
25.3field-weighted citation impact, top 1% 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

166 citing papers in PubMed, 2 syntheses or guidelines pooled it, 249 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Review
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  14. Gut microbiota immune cross-talk in amyotrophic lateral sclerosis.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2024
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  18. Reversal ofProceedings of the National Academy of Sciences of the United States of America · 2024
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  20. Myeloid and lymphoid expression ofScience translational medicine · 2024
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106 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

12 authors at 2 institutions in 2 countries.

Max KoppersDepartment of Translational Neuroscience, University Medical Center Utrecht, Utrecht, the Netherlands.
Anna M BlokhuisDepartment of Translational Neuroscience, University Medical Center Utrecht, Utrecht, the Netherlands.
Henk-Jan WestenengDepartment of Neurology and Neurosurgery, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, the Netherlands.
Margo L TerpstraDepartment of Translational Neuroscience, University Medical Center Utrecht, Utrecht, the Netherlands.
Caroline A C ZundelDepartment of Translational Neuroscience, University Medical Center Utrecht, Utrecht, the Netherlands.
Renata Vieira de SáDepartment of Translational Neuroscience, University Medical Center Utrecht, Utrecht, the Netherlands.
Raymond D SchellevisDepartment of Neurology and Neurosurgery, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, the Netherlands.
Adrian J WaiteInstitute of Psychological Medicine and Clinical Neurosciences, Medical Research Council Centre for Neuropsychiatric Genetics and Genomics, School of Medicine, Cardiff University, Cardiff, United Kingdom.
Derek J BlakeInstitute of Psychological Medicine and Clinical Neurosciences, Medical Research Council Centre for Neuropsychiatric Genetics and Genomics, School of Medicine, Cardiff University, Cardiff, United Kingdom.
Jan H VeldinkDepartment of Neurology and Neurosurgery, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, the Netherlands.
Leonard H van den BergDepartment of Neurology and Neurosurgery, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, the Netherlands.
R Jeroen PasterkampDepartment of Translational Neuroscience, University Medical Center Utrecht, Utrecht, the Netherlands.
University Medical Center Utrecht · NLMedical Research Council · GB

Funding

Medical Research Council MR/L010305/1Motor Neurone Disease Association BLAKE/MAR12/6088Motor Neurone Disease Association BLAKE/MAR12/815-791
6 · The paper itself

Abstract

objectiveHow hexanucleotide (GGGGCC) repeat expansions in C9ORF72 cause amyotrophic lateral sclerosis (ALS) remains poorly understood. Both gain- and loss-of-function mechanisms have been proposed. Evidence supporting these mechanisms in vivo is, however, incomplete. Here we determined the effect of C9orf72 loss-of-function in mice.

methodsWe generated and analyzed a conditional C9orf72 knockout mouse model. C9orf72(fl/fl) mice were crossed with Nestin-Cre mice to selectively remove C9orf72 from neurons and glial cells. Immunohistochemistry was performed to study motor neurons and neuromuscular integrity, as well as several pathological hallmarks of ALS, such as gliosis and TDP-43 mislocalization. In addition, motor function and survival were assessed.

resultsNeural-specific ablation of C9orf72 in conditional C9orf72 knockout mice resulted in significantly reduced body weight but did not induce motor neuron degeneration, defects in motor function, or altered survival.

interpretationOur data suggest that C9orf72 loss-of-function, by itself, is insufficient to cause motor neuron disease. These results may have important implications for the development of therapeutic strategies for C9orf72-associated ALS.

Indexed as

Amino Acid SequenceAnimalsC9orf72 ProteinGene Knockout TechniquesHEK293 CellsHumansMiceMice, Inbred C57BLMice, KnockoutMice, TransgenicMolecular Sequence DataMotor Neuron DiseaseMotor NeuronsNerve DegenerationProteinsC9orf72 ProteinC9orf72 protein, humanProteins

Identifiers

PMID26044557
PMCPMC4744979
OpenAlexW2110308292

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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.