Evidence map›Paper›PMID 20811066›Full record

ArticleInvestigative ophthalmology & visual science2011

Three gene-targeted mouse models of RNA splicing factor RP show late-onset RPE and retinal degeneration.

John J Graziotto, Michael H Farkas, Kinga Bujakowska, Bertrand M Deramaudt, Qi Zhang, Emeline F Nandrot, Chris F Inglehearn, Shomi S Bhattacharya, Eric A Pierce

Open access · hybridAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed
1.5field-weighted citation impact, top 19% 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

54 citing papers in PubMed, 85 citations in OpenAlex.

  1. Article
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  5. The RNA content of extracellular vesicles from gene-editedMolecular therapy. Methods & clinical development · 2025
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  6. Addressing the tissue specificity of U5 snRNP spliceosomopathies.Frontiers in cell and developmental biology · 2025
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  19. Article
  20. The role of splicing factor PRPF8 in breast cancer.Technology and health care : official journal of the European Society for Engineering and Medicine · 2022
    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 4 institutions in 3 countries.

John J GraziottoUniversity of Pennsylvania School of Medicine, Philadelphia, PA, USA.
Michael H Farkas
Kinga Bujakowska
Bertrand M Deramaudt
Qi Zhang
Emeline F Nandrot
Chris F Inglehearn
Shomi S Bhattacharya
Eric A Pierce
University of Pennsylvania · USPenn Presbyterian Medical Center · USSorbonne Université · FRSt James's University Hospital · GB

Funding

RESEARCH ON NORMAL AND ABNORMAL MECHANISMS OF VISIONST32EY007035 · NEI · UNIVERSITY OF PENNSYLVANIA · PI Diego Contreras, Jessica I.W. Morgan · 1985 to 2026
$4.9M
NEI NIH HHS T32 EY007035NEI NIH HHS T32-EY-007035
6 · The paper itself

Abstract

purposeMutations in genes that produce proteins involved in mRNA splicing, including pre-mRNA processing factors 3, 8, and 31 (PRPF3, 8, and 31), RP9, and SNRNP200 are common causes of the late-onset inherited blinding disorder retinitis pigmentosa (RP). It is not known how mutations in these ubiquitously expressed genes lead to retina-specific disease. To investigate the pathogenesis of the RNA splicing factor forms of RP, the authors generated and characterized the retinal phenotypes of Prpf3-T494M, Prpf8-H2309P knockin mice. The retinal ultrastructure of Prpf31-knockout mice was also investigated.

methodsThe knockin mice have single codon alterations in their endogenous Prpf3 and Prpf8 genes that mimic the most common disease causing mutations in human PRPF3 and PRPF8. The Prpf31-knockout mice mimic the null alleles that result from the majority of mutations identified in PRPF31 patients. The retinal phenotypes of the gene targeted mice were evaluated by electroretinography (ERG), light, and electron microscopy.

resultsThe RPE cells of heterozygous Prpf3(+/T494M) and Prpf8(+/H2309P) knockin mice exhibited loss of the basal infoldings and vacuolization, with accumulation of amorphous deposits between the RPE and Bruch[b]'s membrane at age two years. These changes were more severe in the homozygous mice, and were associated with decreased rod function in the Prpf3-T494M mice. Similar degenerative changes in the RPE were detected in Prpf31(±) mice at one year of age.

conclusionsThe finding of similar degenerative changes in RPE cells of all three mouse models suggests that the RPE may be the primary cell type affected in the RNA splicing factor forms of RP. The relatively late-onset phenotype observed in these mice is consistent with the typical adult onset of disease in patients with RP.

Indexed as

Disease Models, AnimalAnimalsBlotting, NorthernBlotting, WesternElectroretinographyEye ProteinsGene Knock-In TechniquesGenotypeMiceMice, Inbred C57BLMice, KnockoutPolymerase Chain ReactionRetinal Pigment EpitheliumRetinitis PigmentosaRibonucleoprotein, U4-U6 Small NuclearRNA-Binding ProteinsEye ProteinsPrp8 protein, mousePRPF31 protein, mousePrpf3 protein, mouseRibonucleoprotein, U4-U6 Small NuclearRNA-Binding ProteinsRNA Splicing Factors

Identifiers

PMID20811066
PMCPMC3053274
OpenAlexW2052450058

What OpenQuestion holds

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Registered trials

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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.