Evidence map›Paper›PMID 36306781›Full record

ArticleStem cell reports2022

Cell-autonomous lipid-handling defects in Stargardt iPSC-derived retinal pigment epithelium cells.

Mitra Farnoodian, Devika Bose, Vladimir Khristov, Praveen Joseph Susaimanickam, Savitri Maddileti, Indumathi Mariappan, Mones Abu-Asab, Maria Campos, Rafael Villasmil, Qin Wan and 8 more

Open access · goldAbstract read
In one paragraph

Article in Stem cell reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.7field-weighted citation impact, top 9% 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

22 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
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  6. Article
  7. Dysregulated DNA Methylation inInternational journal of molecular sciences · 2025
    Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Impaired cathepsin D in retinal pigment epithelium cells mediates Stargardt disease pathogenesis.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2024
    Article
  15. Article
  16. Article
  17. Review
  18. Cell-cell interaction in the pathogenesis of inherited retinal diseases.Frontiers in cell and developmental biology · 2024
    Review
  19. Review
  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

18 authors at 5 institutions in 1 country.

Mitra FarnoodianOcular and Stem Cell Translational Research Section, NEI, NIH, Bethesda, MD 20892, USA.
Devika BoseOcular and Stem Cell Translational Research Section, NEI, NIH, Bethesda, MD 20892, USA.
Vladimir KhristovOcular and Stem Cell Translational Research Section, NEI, NIH, Bethesda, MD 20892, USA.
Praveen Joseph SusaimanickamCentre for Ocular Regeneration, Prof. Brien Holden Eye Research Centre, Hyderabad Eye Research Foundation, LV Prasad Eye Institute, Hyderabad 500034, Telangana, India.
Savitri MaddiletiCentre for Ocular Regeneration, Prof. Brien Holden Eye Research Centre, Hyderabad Eye Research Foundation, LV Prasad Eye Institute, Hyderabad 500034, Telangana, India.
Indumathi MariappanCentre for Ocular Regeneration, Prof. Brien Holden Eye Research Centre, Hyderabad Eye Research Foundation, LV Prasad Eye Institute, Hyderabad 500034, Telangana, India.
Mones Abu-AsabHistopathology core, National Eye Institute, NIH, Bethesda, MD 20892, USA.
Maria CamposHistopathology core, National Eye Institute, NIH, Bethesda, MD 20892, USA.
Rafael VillasmilFlow Cytometry Core, National Eye Institute, NIH, Bethesda, MD 20892, USA.
Qin WanOcular and Stem Cell Translational Research Section, NEI, NIH, Bethesda, MD 20892, USA.
Arvydas MaminishkisOcular and Stem Cell Translational Research Section, NEI, NIH, Bethesda, MD 20892, USA.
David McGaugheyOphthalmic Genetics and Visual Functions Branch, National Eye Institute, National Institutes of Health, Bethesda, MD 20892, USA.
Francesca BaroneOcular and Stem Cell Translational Research Section, NEI, NIH, Bethesda, MD 20892, USA.
Rebekah L GundryCardiOmics Program, Center for Heart and Vascular Research, Division of Cardiovascular Medicine, Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE 68198, USA.
Daniel R RiordonLaboratory of Cardiovascular Sciences, National Institute on Aging, NIH, Baltimore, MD, USA.
Kenneth R BohelerDepartment of Biomedical Engineering, The Johns Hopkins University, Baltimore, MD, USA.
Ruchi SharmaOcular and Stem Cell Translational Research Section, NEI, NIH, Bethesda, MD 20892, USA.
Kapil BhartiOcular and Stem Cell Translational Research Section, NEI, NIH, Bethesda, MD 20892, USA. Electronic address: kapil.bharti@nih.gov.
National Institutes of Health · USNational Eye Institute · USJohns Hopkins University · USNational Institute on Aging · USUniversity of Nebraska Medical Center · US

Funding

Cell Surface Phenotyping Human Primary CellsR01HL134010 · NHLBI · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI GUNDRY, REBEKAH L. · 2016 to 2020
$1.9M
NHLBI NIH HHS R01 HL134010
6 · The paper itself

Abstract

Stargardt retinopathy is an inherited form of macular degeneration caused by mutations in gene ABCA4 and characterized by the accumulation of lipid-rich deposits in the retinal pigment epithelium (RPE), RPE atrophy, and photoreceptor cell death. Inadequate mechanistic insights into pathophysiological changes occurring in Stargardt RPE have hindered disease treatments. Here, we show that ABCA4 knockout and induced pluripotent stem cell-derived RPE (STGD1-iRPE) from patients with Stargardt differentiate normally but display intracellular lipid and ceramide deposits reminiscent of the disease phenotype. STGD1-iRPE also shows defective photoreceptor outer segment (POS) processing and reduced cathepsin B activity-indicating higher lysosomal pH. Lipid deposits in STGD1-iRPE are lowered by increasing the activity of ABCA1, a lipid transporter, and ABCA4 ortholog. Our work suggests that ABCA4 is involved in POS and lipid handling in RPE cells and provides guidance for ongoing gene therapy approaches to target both RPE and photoreceptor cells for an effective treatment.

Indexed as

Induced Pluripotent Stem CellsRetinal Pigment EpitheliumATP-Binding Cassette TransportersHumansLipidsStargardt DiseaseABCA4 protein, humanATP-Binding Cassette TransportersLipidsABCA1ABCA4AMDlipid depositslipid handlinglysosome dysfunctionphagocytosis defectsretinal degenerationRPE

Identifiers

PMID36306781
PMCPMC9669500
OpenAlexW4307447035

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.