Evidence map›Paper›PMID 24129572›Full record

ArticleThe Journal of biological chemistry2013

Retinal pigmented epithelial cells obtained from human induced pluripotent stem cells possess functional visual cycle enzymes in vitro and in vivo.

Tadao Maeda, Mee Jee Lee, Grazyna Palczewska, Stefania Marsili, Paul J Tesar, Krzysztof Palczewski, Masayo Takahashi, Akiko Maeda

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 1 pooled it
4.0field-weighted citation impact, top 5% 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

48 citing papers in PubMed, 1 synthesis or guideline pooled it, 81 citations in OpenAlex.

  1. Pooled it
  2. Personalized Pathogenicity Assessment ofInternational journal of molecular sciences · 2026
    Article
  3. Review
  4. Therapeutic potential of allogeneic iPS cell-derived RPE transplantation forAmerican journal of ophthalmology case reports · 2025
    Article
  5. Article
  6. Stem cell therapy in retinal diseases.Neural regeneration research · 2023
    Review
  7. Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. The LratInternational journal of molecular sciences · 2021
    Article
  15. Review
  16. Article
  17. Article
  18. Review
  19. Article
  20. 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

8 authors at 3 institutions in 2 countries.

Tadao MaedaFrom the Departments of Ophthalmology and Visual Sciences.
Mee Jee Lee
Grazyna Palczewska
Stefania Marsili
Paul J Tesar
Krzysztof Palczewski
Masayo Takahashi
Akiko Maeda
Case Western Reserve University · USPolgenix (United States) · USRIKEN Center for Biosystems Dynamics Research · JP

Funding

TISSUE CULTURE AND HYBRIDOMA MODULEP30EY011373 · NEI · CASE WESTERN RESERVE UNIVERSITY · PI Paul S Park · 1997 to 2026
$17.7M
STRUCTURAL STUDIES OF ARRESTINSR01EY009339 · NEI · UNIVERSITY OF WASHINGTON · PI KISER, PHILIP DAVID, PALCZEWSKI, KRZYSZTOF · 1992 to 2025
$16.0M
Pharmacological Treatment of Retinal DiseasesR24EY021126 · NEI · CASE WESTERN RESERVE UNIVERSITY · PI PALCZEWSKI, KRZYSZTOF · 2010 to 2014
$12.8M
Reactive ocular aldehyde in degenerative retinal diseasesR01EY022658 · NEI · CASE WESTERN RESERVE UNIVERSITY · PI MAEDA, AKIKO · 2012 to 2016
$1.9M
Subcellular imaging of biochemical processes within human retinaR44AG043645 · NIA · POLGENIX, INC. · PI PALCZEWSKA, GRAZYNA MARTA · 2012 to 2014
$1.9M
Retinal degeneration diseases and the visual retinoid cycleK08EY019031 · NEI · CASE WESTERN RESERVE UNIVERSITY · PI MAEDA, AKIKO · 2008 to 2012
$430k
Genetics and Therapy of Age-related Retinal Dysfunction in A/J MiceK08EY019880 · NEI · CASE WESTERN RESERVE UNIVERSITY · PI MAEDA, TADAO · 2010 to 2013
$324k
NEI NIH HHS K08 EY019031NEI NIH HHS K08EY019031NEI NIH HHS K08 EY019880NEI NIH HHS K08EY019880NEI NIH HHS P30 EY011373NEI NIH HHS P30EY011373NEI NIH HHS R01 EY009339NEI NIH HHS R01EY009339NEI NIH HHS R01 EY022658NEI NIH HHS R01EY022658NEI NIH HHS R24 EY021126NEI NIH HHS R24EY021126NIA NIH HHS R44 AG043645NIA NIH HHS R44AG043645
6 · The paper itself

Abstract

Differentiated retinal pigmented epithelial (RPE) cells have been obtained from human induced pluripotent stem (hiPS) cells. However, the visual (retinoid) cycle in hiPS-RPE cells has not been adequately examined. Here we determined the expression of functional visual cycle enzymes in hiPS-RPE cells compared with that of isolated wild-type mouse primary RPE (mpRPE) cells in vitro and in vivo. hiPS-RPE cells appeared morphologically similar to mpRPE cells. Notably, expression of certain visual cycle proteins was maintained during cell culture of hiPS-RPE cells, whereas expression of these same molecules rapidly decreased in mpRPE cells. Production of the visual chromophore, 11-cis-retinal, and retinosome formation also were documented in hiPS-RPE cells in vitro. When mpRPE cells with luciferase activity were transplanted into the subretinal space of mice, bioluminance intensity was preserved for >3 months. Additionally, transplantation of mpRPE into blind Lrat(-/-) and Rpe65(-/-) mice resulted in the recovery of visual function, including increased electrographic signaling and endogenous 11-cis-retinal production. Finally, when hiPS-RPE cells were transplanted into the subretinal space of Lrat(-/-) and Rpe65(-/-) mice, their vision improved as well. Moreover, histological analyses of these eyes displayed replacement of dysfunctional RPE cells by hiPS-RPE cells. Together, our results show that hiPS-RPE cells can exhibit a functional visual cycle in vitro and in vivo. These cells could provide potential treatment options for certain blinding retinal degenerative diseases.

Indexed as

AnimalsCell DifferentiationCells, Culturedcis-trans-IsomerasesGene Expression Regulation, EnzymologicHumansInduced Pluripotent Stem CellsMiceRetinal DegenerationRetinaldehydeRetinal Pigment EpitheliumRetinoid IsomerohydrolaseVision, Ocularcis-trans-IsomerasesRetinaldehydeRetinoid IsomerohydrolaseInduced Pluripotent Stem (iPS) CellLRATRetinal DegenerationRetinal MetabolismRetinoidRPERPE65TransplantationVisual Cycle

Identifiers

PMID24129572
PMCPMC3843063
OpenAlexW2161080647

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.