Evidence map›Paper›PMID 22951453›Full record

ArticleGene therapy2013

RPE65 gene therapy slows cone loss in Rpe65-deficient dogs.

F M Mowat, A R Breuwer, J T Bartoe, M J Annear, Z Zhang, A J Smith, J W B Bainbridge, S M Petersen-Jones, R R Ali

Abstract read
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In one paragraph

Article in Gene therapy, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

44 citing papers in PubMed, 62 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Article
  4. Article
  5. Canine models of inherited retinal diseases: from neglect to well-recognized translational value.Mammalian genome : official journal of the International Mammalian Genome Society · 2025
    Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Development of a translatable gene augmentation therapy for CNGB1-retinitis pigmentosa.Molecular therapy : the journal of the American Society of Gene Therapy · 2023
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Clinical Perspective: Treating RPE65-Associated Retinal Dystrophy.Molecular therapy : the journal of the American Society of Gene Therapy · 2021
    Review
  17. Article
  18. Review
  19. Adaptations for amphibious vision in sea otters (Enhydra lutris): structural and functional observations.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2020
    Article
  20. 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

9 authors at 2 institutions in 2 countries.

F M MowatDepartment of Small Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing, MI 48824, USA.
A R Breuwer
J T Bartoe
M J Annear
Z Zhang
A J Smith
J W B Bainbridge
S M Petersen-Jones
R R Ali
Michigan State University · USUniversity College London · GB

Funding

Department of Health NIHR-RP-011-003Medical Research Council MR/J005215/1
6 · The paper itself

Abstract

Recent clinical trials of retinal pigment epithelium gene (RPE65) supplementation therapy in Leber congenital amaurosis type 2 patients have demonstrated improvements in rod and cone function, but it may be some years before the effects of therapy on photoreceptor survival become apparent. The Rpe65-deficient dog is a very useful pre-clinical model in which to test efficacy of therapies, because the dog has a retina with a high degree of similarity to that of humans. In this study, we evaluated the effect of RPE65 gene therapy on photoreceptor survival in order to predict the potential benefit and limitations of therapy in patients. We examined the retinas of Rpe65-deficient dogs after RPE65 gene therapy to evaluate the preservation of rods and cone photoreceptor subtypes. We found that gene therapy preserves both rods and cones. While the moderate loss of rods in the Rpe65-deficient dog retina is slowed by gene therapy, S-cones are lost extensively and gene therapy can prevent that loss, although only within the treated area. Although LM-cones are not lost extensively, cone opsin mislocalization indicates that they are stressed, and this can be partially reversed by gene therapy. Our results suggest that gene therapy may be able to slow cone degeneration in patients if intervention is sufficiently early and also that it is probably important to treat the macula in order to preserve central function.

Indexed as

Retinal Cone Photoreceptor CellsRetinal Rod Photoreceptor CellsAnimalsCell Survivalcis-trans-IsomerasesDisease Models, AnimalDogsGenetic TherapyLeber Congenital AmaurosisRetinaRetinoid Isomerohydrolasecis-trans-IsomerasesRetinoid Isomerohydrolase

Identifiers

PMID22951453
OpenAlexW2010207266

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.