Evidence map›Paper›PMID 15277471›Full record

ArticleInvestigative ophthalmology & visual science2004

Modulating expression of peripherin/rds in transgenic mice: critical levels and the effect of overexpression.

May Nour, Xi-Qin Ding, Heidi Stricker, Steven J Fliesler, Muna I Naash

Open access · bronzeAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
1.7field-weighted citation impact, top 18% 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

50 citing papers in PubMed, 66 citations in OpenAlex.

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  16. Novel molecular mechanisms for Prph2-associated pattern dystrophy.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2020
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  17. Late-onset pattern macular dystrophy mimickingCold Spring Harbor molecular case studies · 2019
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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

5 authors at 1 institution in 1 country.

May NourDepartment of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, 73104, USA.
Xi-Qin Ding
Heidi Stricker
Steven J Fliesler
Muna I Naash
University of Oklahoma Health Sciences Center · US

Funding

Supplement for: Mechanism of Photoreceptor Cell Degeneration in Animal Models of Retinal DiseasesR01EY010609 · NEI · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI MUAYYAD R AL-UBAIDI, Muna I. Naash · 1995 to 2026
$11.0M
CORE--MOLECULAR BIOLOGYP30EY012190 · NEI · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI ANDERSON, ROBERT E · 1999 to 2009
$5.2M
ISOPRENOID METABOLISM IN THE RETINAR01EY007361 · NEI · UNIVERSITY OF SOUTH FLORIDA · PI FLIESLER, STEVEN J. · 1988 to 2015
$4.4M
Mechanism of photoreceptor cell degeneration in animal models of retinal diseasesR56EY010609 · NEI · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI NAASH, MUNA I. · 2008 to 2008
$479k
PHOTORECEPTORSR55EY010609 · NEI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI NAASH, MUNA I · 1994 to 1994
–
NEI NIH HHS EY-07361NEI NIH HHS EY-10609NEI NIH HHS P30 EY012190NEI NIH HHS R01 EY007361NEI NIH HHS R01 EY010609NEI NIH HHS R56 EY010609
6 · The paper itself

Abstract

purposeMutations in the photoreceptor-specific protein peripherin/rds are associated with multiple retinal diseases. To date, attempts to achieve complete structural and functional rescue in animal models of peripherin/rds-induced retinal degeneration have not been successful. Gene therapy-directed approaches have been hindered by the haploinsufficiency phenotype, which dictates well-regulated expression of peripherin/rds protein levels.

methodsUsing a transgenic mouse line expressing wild-type peripherin/rds (NMP), the authors evaluated the critical in vivo level of peripherin/rds needed to maintain photoreceptor structure and ERG function and assessed the consequences of peripherin/rds overexpression in both rods and cones by Western blot and immunoprecipitation analyses, immunohistochemistry, electron microscopy, and electroretinography. The NMP transgene included a C-terminal modification (P341Q) to facilitate detection of the transgenic protein in the presence of wild-type peripherin/rds, using the monoclonal antibody 3B6.

resultsPeripherin/rds protein levels in NMP homozygotes were approximately 60% of wild-type levels. Western blot and immunoprecipitation analyses confirmed normal biochemical properties of the NMP protein when compared with wild-type peripherin/rds. Immunohistochemistry demonstrated appropriate localization of transgenic peripherin/rds protein to the disc rim region of photoreceptor outer segments. Total peripherin/rds levels in the retina were modulated by crossing NMP transgenic mice into different rds genetic backgrounds. A positive correlation was observed between peripherin/rds expression levels and the structural and functional integrity of photoreceptor outer segments. Overexpression of peripherin/rds caused no detectable adverse effects on rod or cone structure and function.

conclusionsThese findings may have significant implications regarding therapeutic intervention in peripherin/rds-associated retinal diseases.

Indexed as

AnimalsBlotting, WesternElectroretinographyFemaleFluorescent Antibody Technique, IndirectGene Expression RegulationImmunoblottingIntermediate Filament ProteinsMaleMembrane GlycoproteinsMiceMice, Inbred C57BLMice, TransgenicNerve Tissue ProteinsPeripherinsPhotoreceptor Cells, VertebrateIntermediate Filament ProteinsMembrane GlycoproteinsNerve Tissue ProteinsPeripherinsPrph2 protein, mouse

Identifiers

PMID15277471
PMCPMC2937570
OpenAlexW1969529794

What OpenQuestion holds

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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.