Evidence map›Paper›PMID 24930601›Full record

ArticleMolecular therapy : the journal of the American Society of Gene Therapy2014

Nonallele specific silencing of ataxin-7 improves disease phenotypes in a mouse model of SCA7.

Pavitra S Ramachandran, Ryan L Boudreau, Kellie A Schaefer, Albert R La Spada, Beverly L Davidson

Open access · hybridAbstract read
In one paragraph

Article in Molecular therapy : the journal of the American Society of Gene Therapy, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 22% 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

35 citing papers in PubMed, 1 synthesis or guideline pooled it, 59 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Current trends in gene therapy to treat inherited disorders of the brain.Molecular therapy : the journal of the American Society of Gene Therapy · 2025
    Review
  4. Article
  5. Review
  6. Therapeutic Gene Editing in Inherited Retinal Disorders.Cold Spring Harbor perspectives in medicine · 2023
    Review
  7. Article
  8. Article
  9. Gene therapy for ALS: A review.Molecular therapy : the journal of the American Society of Gene Therapy · 2021
    Review
  10. Review
  11. Review
  12. Review
  13. Review
  14. Review
  15. Review
  16. Review
  17. Review
  18. Molecular Mechanisms and Therapeutics for SCA17.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2019
    Review
  19. Molecular Targets and Therapeutic Strategies in Spinocerebellar Ataxia Type 7.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2019
    Review
  20. Review
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

5 authors at 2 institutions in 1 country.

Pavitra S RamachandranInterdisciplinary program in Genetics, University of Iowa, Iowa City, Iowa, USA.
Ryan L BoudreauDepartment of Internal Medicine, University of Iowa, Iowa City, Iowa, USA.
Kellie A SchaeferDepartment of Internal Medicine, University of Iowa, Iowa City, Iowa, USA.
Albert R La SpadaDepartment of Pediatrics, Cellular and Molecular Medicine, and Neurosciences, Division of Biological Sciences, the Institute for Genomic Medicine, and the Sanford Consortium for Regenerative Medicine, University of California, San Diego, La Jolla, California, USA.
Beverly L Davidson1] Interdisciplinary program in Genetics, University of Iowa, Iowa City, Iowa, USA [2] Department of Internal Medicine, University of Iowa, Iowa City, Iowa, USA [3] Department of Neurology, University of Iowa, Iowa City, Iowa, USA [4] Department of Physiology and Biophysics, University of Iowa, Iowa City, Iowa, USA.
University of Iowa · USSanford Consortium for Regenerative Medicine · US

Funding

SCA7 RETINAL DEGENERATION: MOLECULAR BASIS &THERAPYR01EY014061 · NEI · UNIVERSITY OF WASHINGTON · PI ALBERT R LA SPADA · 2002 to 2026
$8.4M
RNAI for Huntington's DiseaseP01NS050210 · NINDS · UNIVERSITY OF IOWA · PI DAVIDSON, BEVERLY L. · 2005 to 2009
$6.5M
Gene therapy for dominant neurodegenerative diseasesR01HD044093 · NICHD · UNIVERSITY OF IOWA · PI DAVIDSON, BEVERLY L · 2002 to 2006
$1.1M
Antisense oligonucleotide knock-down of ataxin-7 in a SCA7 mouse modelR21NS082112 · NINDS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI LA SPADA, ALBERT R · 2012 to 2013
$419k
NEI NIH HHS R01 EY014061NICHD NIH HHS R01 HD044093NICHD NIH HHS R01 HD44093NINDS NIH HHS P01 NS050210NINDS NIH HHS P01 NS50210NINDS NIH HHS R21 NS082112
6 · The paper itself

Abstract

Spinocerebellar ataxia type 7 (SCA7) is a late-onset neurodegenerative disease characterized by ataxia and vision loss with no effective treatments in the clinic. The most striking feature is the degeneration of Purkinje neurons of the cerebellum caused by the presence of polyglutamine-expanded ataxin-7. Ataxin-7 is part of a transcriptional complex, and, in the setting of mutant ataxin-7, there is misregulation of target genes. Here, we designed RNAi sequences to reduce the expression of both wildtype and mutant ataxin-7 to test if reducing ataxin-7 in Purkinje cells is both tolerated and beneficial in an animal model of SCA7. We observed sustained reduction of both wildtype and mutant ataxin-7 as well as a significant improvement of ataxia phenotypes. Furthermore, we observed a reduction in cerebellar molecular layer thinning and nuclear inclusions, a hallmark of SCA7. In addition, we observed recovery of cerebellar transcripts whose expression is disrupted in the presence of mutant ataxin-7. These data demonstrate that reduction of both wildtype and mutant ataxin-7 by RNAi is well tolerated, and contrary to what may be expected from reducing a component of the Spt-Taf9-Gcn5 acetyltransferase complex, is efficacious in the SCA7 mouse.

Indexed as

RNA InterferenceAllelesAnimalsAtaxin-7Disease Models, AnimalGene Expression RegulationMiceMice, Inbred C57BLMotor ActivityMutationNerve Tissue ProteinsPurkinje CellsSpinocerebellar AtaxiasAtaxin-7Atxn7 protein, mouseNerve Tissue Proteins

Identifiers

PMID24930601
PMCPMC4435484
OpenAlexW2090210400

What OpenQuestion holds

Textmetadata
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.