Evidence map›Paper›PMID 25489223›Full record

ArticleMolecular vision2014

Lack of dystrophin protein Dp71 results in progressive cataract formation due to loss of fiber cell organization.

Patrice E Fort, Marie Darche, José-Alain Sahel, Alvaro Rendon, Ramin Tadayoni

Open access · greenAbstract read
In one paragraph

Article in Molecular vision, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.6field-weighted citation impact, top 32% 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

11 citing papers in PubMed, 15 citations in OpenAlex.

  1. Review
  2. Biochemical and biomechanical characteristics of dystrophin-deficient mdxBiochimica et biophysica acta. Molecular basis of disease · 2021
    Article
  3. Review
  4. Single-transcript multiplexWellcome open research · 2020
    Article
  5. Article
  6. Cataract development associated with long-term glucocorticoid therapy in Duchenne muscular dystrophy patients.Journal of AAPOS : the official publication of the American Association for Pediatric Ophthalmology and Strabismus · 2018
    Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. 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

5 authors at 1 institution in 1 country.

Patrice E FortInstitut de la Vision/INSERM/UPMC, Univ Paris 06/CNRS/CHNO des Quinze-Vingts, Paris, France ; Kellogg Eye Center, Departments of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, MI.
Marie DarcheInstitut de la Vision/INSERM/UPMC, Univ Paris 06/CNRS/CHNO des Quinze-Vingts, Paris, France.
José-Alain SahelInstitut de la Vision/INSERM/UPMC, Univ Paris 06/CNRS/CHNO des Quinze-Vingts, Paris, France ; Fondation Ophtalmologique Adolphe de Rothschild, Paris, France; ; Institute of Ophthalmology, University College of London, United Kingdom; ; Academie des Sciences-Institut de France, Paris, France.
Alvaro RendonInstitut de la Vision/INSERM/UPMC, Univ Paris 06/CNRS/CHNO des Quinze-Vingts, Paris, France.
Ramin TadayoniInstitut de la Vision/INSERM/UPMC, Univ Paris 06/CNRS/CHNO des Quinze-Vingts, Paris, France ; Fondation Ophtalmologique Adolphe de Rothschild, Paris, France;
Sorbonne Université · FR

Funding

Progressive Impact of Diabetes on Retinal Neuroprotection by ?-CrystallinsR01EY020895 · NEI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI FORT, PATRICE E. · 2012 to 2019
$3.2M
NEI NIH HHS R01 EY020895NEI NIH HHS R01EY020895
6 · The paper itself

Abstract

purposeDp71 is the main product of the Duchenne muscular dystrophy (DMD) gene in the central nervous system. While studying the impact of its absence on retinal functions, we discovered that mice lacking Dp71 also developed a progressive opacification of the crystalline lens. The purpose of this study was to perform a detailed characterization of the cataract formation in Dp71 knockout (KO-Dp71) mice.

methodsCataract formations in KO-Dp71 mice and wild-type (wt) littermates were assessed in vivo by slit-lamp examination and ex vivo by histological analysis as a function of aging. The expression and cellular localization of the DMD gene products were monitored by western blot and immunohistochemical analysis. Fiber cell integrity was assessed by analyzing the actin cytoskeleton as well as the expression of aquaporin-0 (AQP0).

resultsAs expected, a slit-lamp examination revealed that only one of the 20 tested wt animals presented with a mild opacification of the lens and only at the most advanced age. However, a lack of Dp71 was associated with a 40% incidence of cataracts as early as 2 months of age, which progressively increased to full penetrance by 7 months. A subsequent histological analysis revealed an alteration in the structures of the lenses of KO-Dp71 mice that correlated with the severity of the lens opacity. An analysis of the expression of the different dystrophin gene products revealed that Dp71 was the major DMD gene product expressed in the lens, especially in fiber cells. The role of Dp71 in fiber cells was also suggested by the progressive disorganization of the lens fibers, which was observed in the absence of Dp71 and demonstrated by irregular staining of the actin network and the aqueous channel AQP0.

conclusionsWhile its role in the retina has been well characterized, this study demonstrates for the first time the role played by Dp71 in a different ocular tissue: the crystalline lens. It primarily demonstrates the role that Dp71 plays in the maintenance of the integrity of the secondary lens fibers.

Indexed as

Actin CytoskeletonAgingAnimalsAquaporinsCataractDystrophinEye ProteinsGene ExpressionLens, CrystallineMiceMice, KnockoutRetinaSlit Lampapo-dystrophin 1aquaporin 0AquaporinsDystrophinEye Proteins

Identifiers

PMID25489223
PMCPMC4225142
OpenAlexW2108763697

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.