Evidence map›Paper›PMID 32105772›Full record

ReviewProgress in retinal and eye research2020

The cell biology of the retinal pigment epithelium.

Aparna Lakkaraju, Ankita Umapathy, Li Xuan Tan, Lauren Daniele, Nancy J Philp, Kathleen Boesze-Battaglia, David S Williams

Open access · greenAbstract readReview
In one paragraph

Review in Progress in retinal and eye research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 245 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
245citing papers in PubMed, 2 pooled it
17.0field-weighted citation impact, top 1% 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

245 citing papers in PubMed, 2 syntheses or guidelines pooled it, 401 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Putative mechanisms of ocular inflammation in syphilis.Journal of ophthalmic inflammation and infection · 2026
    Review
  5. Article
  6. Article
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  8. 3D epigenomic landscape of the human retinal pigment epithelium.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Loss of ATRAID in Late-Onset, Non-Syndromic Retinitis Pigmentosa.Investigative ophthalmology & visual science · 2026
    Article
  14. Polyunsaturated fatty acid metabolism in the retinal pigment epithelium and its association with outer retinal disease.Mammalian genome : official journal of the International Mammalian Genome Society · 2026
    Review
  15. Article
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  20. Review

185 more citing papers are in PubMed but not listed here.

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

7 authors at 4 institutions in 1 country.

Aparna LakkarajuDepartment of Ophthalmology, University of California, San Francisco, San Francisco, CA, USA.
Ankita UmapathyDepartment of Ophthalmology and Stein Eye Institute, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA; Department of Neurobiology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA.
Li Xuan TanDepartment of Ophthalmology, University of California, San Francisco, San Francisco, CA, USA.
Lauren DanieleDepartment of Biochemistry, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA.
Nancy J PhilpDepartment of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA.
Kathleen Boesze-BattagliaDepartment of Biochemistry, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA.
David S WilliamsDepartment of Ophthalmology and Stein Eye Institute, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA; Department of Neurobiology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA. Electronic address: dswilliams@ucla.edu.
University of California, Los Angeles · USUniversity of California, San Francisco · USUniversity of Pennsylvania · USThomas Jefferson University · US

Funding

Scientific TransparencyP30EY001583 · NEI · UNIVERSITY OF PENNSYLVANIA · PI CLAIRE H MITCHELL · 1985 to 2026
$19.5M
Vision Research Core at UCLAP30EY000331 · NEI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI Xian-Jie Yang · 1985 to 2026
$16.8M
Rapid-Prototyping and Design CoreP30EY002162 · NEI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI LAMBA, DEEPAK ASHOK · 1985 to 2024
$16.8M
RPE LACTATE TRANSPORTERS--A ROLE IN RETINAL SURVIVALR01EY012042 · NEI · THOMAS JEFFERSON UNIVERSITY · PI PHILP, NANCY JEAN · 1998 to 2018
$5.7M
MEMBRANE FUSION IN RETINAL ROD OUTER SEGMENTSR01EY010420 · NEI · UNIV OF MED/DENT NJ-SCH OSTEOPATHIC MED · PI BOESZE-BATTAGLIA, KATHLEEN · 1999 to 2016
$4.7M
The Photoreceptor CiliumR01EY013408 · NEI · UNIVERSITY OF CALIFORNIA SAN DIEGO · PI WILLIAMS, DAVID S · 2001 to 2017
$3.8M
Mechanisms of RPE dysfunction in macular degenerations: role of intracellular complement activationR01EY030668 · NEI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI LAKKARAJU, APARNA · 2020 to 2024
$3.5M
Recycling of Metabolites from Ingested Outer Segments Supports Visual FunctionR01EY026525 · NEI · UNIVERSITY OF PENNSYLVANIA · PI BOESZE-BATTAGLIA, KATHLEEN, PHILP, NANCY JEAN · 2016 to 2023
$3.4M
RPE cell biology, aging, and diseaseR01EY027442 · NEI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI WILLIAMS, DAVID S · 2017 to 2021
$2.6M
Mechanisms of cellular clearance in the retinal pigment epitheliumR01EY023299 · NEI · UNIVERSITY OF WISCONSIN-MADISON · PI LAKKARAJU, APARNA · 2015 to 2019
$2.3M
Microsomal Transfer Protein Modulates Lipoprotein Metabolism and Retinal lipid HomeostasisR21EY032743 · NEI · UNIVERSITY OF PENNSYLVANIA · PI BOESZE-BATTAGLIA, KATHLEEN, HUSSAIN, M MAHMOOD · 2022 to 2023
$454k
The role of a novel scaffold protein in mediating RPE phagocytosis of photoreceptor outer segmentR21EY029826 · NEI · UNIVERSITY OF PENNSYLVANIA · PI BOESZE-BATTAGLIA, KATHLEEN, GUZIEWICZ, KARINA E. · 2019 to 2020
$443k
NEI NIH HHS P30 EY000331NEI NIH HHS P30 EY001583NEI NIH HHS P30 EY002162NEI NIH HHS R01 EY010420NEI NIH HHS R01 EY012042NEI NIH HHS R01 EY013408NEI NIH HHS R01 EY023299NEI NIH HHS R01 EY026525NEI NIH HHS R01 EY027442NEI NIH HHS R01 EY030668NEI NIH HHS R21 EY029826NEI NIH HHS R21 EY031109NEI NIH HHS R21 EY032743
6 · The paper itself

Abstract

The retinal pigment epithelium (RPE), a monolayer of post-mitotic polarized epithelial cells, strategically situated between the photoreceptors and the choroid, is the primary caretaker of photoreceptor health and function. Dysfunction of the RPE underlies many inherited and acquired diseases that cause permanent blindness. Decades of research have yielded valuable insight into the cell biology of the RPE. In recent years, new technologies such as live-cell imaging have resulted in major advancement in our understanding of areas such as the daily phagocytosis and clearance of photoreceptor outer segment tips, autophagy, endolysosome function, and the metabolic interplay between the RPE and photoreceptors. In this review, we aim to integrate these studies with an emphasis on appropriate models and techniques to investigate RPE cell biology and metabolism, and discuss how RPE cell biology informs our understanding of retinal disease.

Indexed as

AutophagyEndosomesLysosomesMetabolismOrganellesPhagocytosisPhagosome maturation

Identifiers

PMID32105772
PMCPMC8941496
OpenAlexW3007934773

What OpenQuestion holds

Textmetadata
LicenceTDM
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.