Evidence map›Paper›PMID 27653967›Full record

ArticleGene therapy2016

Development of an optimized AAV2/5 gene therapy vector for Leber congenital amaurosis owing to defects in RPE65.

A Georgiadis, Y Duran, J Ribeiro, L Abelleira-Hervas, S J Robbie, B Sünkel-Laing, S Fourali, A Gonzalez-Cordero, E Cristante, M Michaelides and 3 more

Erratum issuedOpen access · hybridAbstract read
In one paragraph

Article in Gene therapy, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 43 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed, 3 pooled it
6.1field-weighted citation impact, top 3% 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

43 citing papers in PubMed, 3 syntheses or guidelines pooled it, 82 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Personalized Pathogenicity Assessment ofInternational journal of molecular sciences · 2026
    Article
  6. Review
  7. AAV vector development, back to the future.Molecular therapy : the journal of the American Society of Gene Therapy · 2025
    Review
  8. Article
  9. Review
  10. Review
  11. Review
  12. Overview of Retinal Gene Therapy: Current Status and Future Challenges.Cold Spring Harbor perspectives in medicine · 2023
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors at 3 institutions in 1 country.

A GeorgiadisDepartment of Genetics, UCL Institute of Ophthalmology, London EC1V 9EL, UK.
Y DuranDepartment of Genetics, UCL Institute of Ophthalmology, London EC1V 9EL, UK.
J RibeiroDepartment of Genetics, UCL Institute of Ophthalmology, London EC1V 9EL, UK.
L Abelleira-HervasDepartment of Genetics, UCL Institute of Ophthalmology, London EC1V 9EL, UK.
S J RobbieDepartment of Genetics, UCL Institute of Ophthalmology, London EC1V 9EL, UK.
B Sünkel-LaingDepartment of Genetics, UCL Institute of Ophthalmology, London EC1V 9EL, UK.
S FouraliDepartment of Genetics, UCL Institute of Ophthalmology, London EC1V 9EL, UK.
A Gonzalez-CorderoDepartment of Genetics, UCL Institute of Ophthalmology, London EC1V 9EL, UK.
E CristanteDepartment of Genetics, UCL Institute of Ophthalmology, London EC1V 9EL, UK.
M MichaelidesDepartment of Genetics, UCL Institute of Ophthalmology, London EC1V 9EL, UK.
J W B BainbridgeDepartment of Genetics, UCL Institute of Ophthalmology, London EC1V 9EL, UK.
A J SmithDepartment of Genetics, UCL Institute of Ophthalmology, London EC1V 9EL, UK.
R R AliDepartment of Genetics, UCL Institute of Ophthalmology, London EC1V 9EL, UK.
University College London · GBMoorfields Eye Hospital · GBMoorfields Eye Hospital NHS Foundation Trust · GB

Funding

Department of Health NIHR-RP-011-003Medical Research Council MR/J005215/1Medical Research Council MR/L022699/1Medical Research Council MR/M015815/1
6 · The paper itself

Abstract

Leber congenital amaurosis is a group of inherited retinal dystrophies that cause severe sight impairment in childhood; RPE65-deficiency causes impaired rod photoreceptor function from birth and progressive impairment of cone photoreceptor function associated with retinal degeneration. In animal models of RPE65 deficiency, subretinal injection of recombinant adeno-associated virus (AAV) 2/2 vectors carrying RPE65 cDNA improves rod photoreceptor function, and intervention at an early stage of disease provides sustained benefit by protecting cone photoreceptors against retinal degeneration. In affected humans, administration of these vectors has resulted to date in relatively modest improvements in photoreceptor function, even when retinal degeneration is comparatively mild, and the duration of benefit is limited by progressive retinal degeneration. We conclude that the demand for RPE65 in humans is not fully met by current vectors, and predict that a more powerful vector will provide more durable benefit. With this aim we have modified the original AAV2/2 vector to generate AAV2/5-OPTIRPE65. The new configuration consists of an AAV vector serotype 5 carrying an optimized hRPE65 promoter and a codon-optimized hRPE65 gene. In mice, AAV2/5-OPTIRPE65 is at least 300-fold more potent than our original AAV2/2 vector.

Indexed as

3T3 CellsAnimalscis-trans-IsomerasesDependovirusFemaleGenetic TherapyGenetic VectorsHEK293 CellsHumansLeber Congenital AmaurosisMaleMiceMice, Inbred C57BLRabbitsRetinoid Isomerohydrolasecis-trans-IsomerasesRetinoid Isomerohydrolase

Identifiers

PMID27653967
PMCPMC5143366
OpenAlexW2522513651

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.