Evidence map›Paper›PMID 23054839›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2012

Synthetic zinc finger repressors reduce mutant huntingtin expression in the brain of R6/2 mice.

Mireia Garriga-Canut, Carmen Agustín-Pavón, Frank Herrmann, Aurora Sánchez, Mara Dierssen, Cristina Fillat, Mark Isalan

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 98 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
98citing papers in PubMed, 1 pooled it
4.4field-weighted citation impact, top 4% 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

98 citing papers in PubMed, 1 synthesis or guideline pooled it, 189 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Sample enrichment for clinical trials to show delay of onset in huntington disease.Movement disorders : official journal of the Movement Disorder Society · 2019
    Trial
  4. Article
  5. Article
  6. Genetic therapies for neurological diseases.Pharmacological reviews · 2026
    Review
  7. Review
  8. Review
  9. Review
  10. Review
  11. Review
  12. Review
  13. Article
  14. Review
  15. Review
  16. Article
  17. Huntington's Disease: Complex Pathogenesis and Therapeutic Strategies.International journal of molecular sciences · 2024
    Review
  18. Review
  19. Review
  20. Article

38 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

7 authors at 4 institutions in 2 countries.

Mireia Garriga-CanutEMBL/CRG Systems Biology Research Unit, Centre for Genomic Regulation (CRG), Dr. Aiguader 88, 08003 Barcelona, Spain.
Carmen Agustín-Pavón
Frank Herrmann
Aurora Sánchez
Mara Dierssen
Cristina Fillat
Mark Isalan
Pompeu Fabra University · ESCentre for Genomic Regulation · ESConsorci Institut D'Investigacions Biomediques August Pi I Sunyer · ESHospital Clínic de Barcelona · ES

Funding

European Research Council 201249
6 · The paper itself

Abstract

Huntington's disease (HD) is a dominantly inherited neurodegenerative disorder caused by expanded CAG repeats in the huntingtin (HTT) gene. Although several palliative treatments are available, there is currently no cure and patients generally die 10-15 y after diagnosis. Several promising approaches for HD therapy are currently in development, including RNAi and antisense analogs. We developed a complementary strategy to test repression of mutant HTT with zinc finger proteins (ZFPs) in an HD model. We tested a "molecular tape measure" approach, using long artificial ZFP chains, designed to bind longer CAG repeats more strongly than shorter repeats. After optimization, stable ZFP expression in a model HD cell line reduced chromosomal expression of the mutant gene at both the protein and mRNA levels (95% and 78% reduction, respectively). This was achieved chromosomally in the context of endogenous mouse HTT genes, with variable CAG-repeat lengths. Shorter wild-type alleles, other genomic CAG-repeat genes, and neighboring genes were unaffected. In vivo, striatal adeno-associated virus viral delivery in R6/2 mice was efficient and revealed dose-dependent repression of mutant HTT in the brain (up to 60%). Furthermore, zinc finger repression was tested at several levels, resulting in protein aggregate reduction, reduced decline in rotarod performance, and alleviation of clasping in R6/2 mice, establishing a proof-of-principle for synthetic transcription factor repressors in the brain.

Indexed as

Zinc FingersAnimalsBase SequenceBinding, CompetitiveBrainChromosomes, MammalianDisease Models, AnimalGene Expression RegulationGenes, ReporterGene Transfer TechniquesHEK293 CellsHumansHuntingtin ProteinHuntington DiseaseMiceMice, TransgenicHtt protein, mouseHuntingtin ProteinMutant ProteinsNerve Tissue ProteinsNuclear ProteinsPeptidespolyglutamineRepressor Proteins

Identifiers

PMID23054839
PMCPMC3494930
OpenAlexW2064886170

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.