Evidence map›Paper›PMID 15689811›Full record

ArticleRetina (Philadelphia, Pa.)

Efficient gene transfer to retinal pigment epithelium cells with long-term expression.

Lingyun Cheng, Mitsuko Toyoguchi, David J Looney, Jeffery Lee, Marie C Davidson, William R Freeman

Open access · greenAbstract read
In one paragraph

Article in Retina (Philadelphia, Pa.). The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.3field-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

10 citing papers in PubMed, 29 citations in OpenAlex.

  1. Review
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  3. Review
  4. Vector platforms for gene therapy of inherited retinopathies.Progress in retinal and eye research · 2014
    Review
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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

6 authors at 1 institution in 1 country.

Lingyun ChengJacobs Retina Center, Department of Ophthalmology, Shiley Eye Center, University of California at San Diego, San Diego, California, USA. cheng@eyecenter.ucsd.edu
Mitsuko Toyoguchi
David J Looney
Jeffery Lee
Marie C Davidson
William R Freeman
Smith-Kettlewell Eye Research Institute · US

Funding

VirologyP30AI036214 · NIAID · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI Maile Ann Young Karris · 1994 to 2026
$78.4M
TREATMENT OF RETINOPATHY ASSOCIATED WITH AIDSR01EY007366 · NEI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI FREEMAN, WILLIAM R. · 1988 to 2013
$7.6M
LENTIVIRAL VECTORS FOR HIV GENE THERAPYP01AI045992 · NIAID · UNIVERSITY OF CALIFORNIA SAN DIEGO · PI LOONEY, DAVID JAMES · 1999 to 2002
$2.3M
NEI NIH HHS EY07366NEI NIH HHS R01 EY007366NIAID NIH HHS AI45992NIAID NIH HHS P30 AI036214NIAID NIH HHS P30 AI36214
6 · The paper itself

Abstract

purposeTo evaluate the safety and efficiency of feline immunodeficiency virus (FIV) vectors for gene delivery into the mammalian retina.

methodsA first-generation FIV vector was constructed and administered into rabbit eyes at two different concentrations by intravitreal or subretinal routes. A second-generation FIV vector was also constructed and administered subretinally into both rabbit and rat eyes at the same concentration. After vector administration, eyes were monitored using slit-lamp biomicroscopy, indirect ophthalmoscopy, fundus photography, and electroretinogram. After the rabbits were killed, eye tissues were processed for light microscopy and immunohistochemical analysis.

resultsAdministration of both first- and second-generation FIV vectors produced transient vitritis and/or papillitis in rabbits, without other pathologic abnormalities. Retinal pigment epithelium (RPE) cells were the predominant cell type transduced in rabbit eyes, but ganglion cells and Muller cells were also transduced. Transduction was confined to the retinal bleb area. The second-generation FIV vector transduced RPE cells much more efficiently than the first-generation vector (95% vs. 4.5%, respectively; P = 0.0015) in rabbit eyes. In contrast, no toxicity was evident over a 24- to 25-month follow-up period after injection of the second-generation FIV vector into rat eyes. Tropism in the rat eye was similar, including RPE and ganglion cells, and the RPE transduction rate was also high (50%). Transgene expression was persistent in both species over the duration of the experiment.

conclusionSecond-generation FIV vectors can efficiently transfer genes into RPE cells with resulting long-term expression, properties potentially valuable to gene therapy approaches to some retinal diseases.

Indexed as

Genetic VectorsGene Transfer TechniquesAnimalsbeta-GalactosidaseElectroretinographyGene Expression RegulationGenetic TherapyImmunodeficiency Virus, FelineOphthalmoscopyPigment Epithelium of EyeRabbitsRatsRats, Inbred BNSafetyTransgenesbeta-Galactosidase

Identifiers

PMID15689811
PMCPMC1382166
OpenAlexW2074155420

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.