Cited by 92Retinal Development and DisordersRetinoids in leukemia and cellular processesRetinal Diseases and Treatments

Retinal Photodamage Mediated by All‐trans‐retinal†

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Maeda, Tadao, Golczak, Marcin, Maeda, Akiko·2012·Photochemistry and Photobiology

Abstract

Accumulation of all‐trans‐retinal (all‐trans‐RAL), reactive vitamin A aldehyde, is one of the key factors in initiating retinal photodamage. This photodamage is characterized by progressive retinal cell death evoked by light exposure in both an acute and chronic fashion. Photoactivated rhodopsin releases all‐trans‐RAL, which is subsequently transported by ATP‐binding cassette transporter 4 and reduced to all‐trans‐retinol by all‐trans‐retinol dehydrogenases located in photoreceptor cells. Any interruptions in the clearing of all‐trans‐RAL in the photoreceptors can cause an accumulation of this reactive aldehyde and its toxic condensation products. This accumulation may result in the manifestation of retinal dystrophy including human retinal degenerative diseases such as Stargardt’s disease and age‐related macular degeneration. Herein, we discuss the mechanisms of all‐trans‐RAL clearance in photoreceptor cells by sequential enzymatic reactions, the visual (retinoid) cycle, and potential molecular pathways of retinal photodamage. We also review recent imaging technologies to monitor retinal health status as well as novel therapeutic strategies preventing all‐trans‐RAL‐associated retinal photodamage.

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Crossref · 10.1111/j.1751-1097.2012.01143.x

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  • Recent studies of Abca4-/-Rdh8-/- double knockout mice indicate that all-trans-retinal itself may play a decisive role in light-induced photoreceptor degeneration.

    “However, recent studies of Abca4–/–Rdh8–/– double knockout mice that closely recapitulate human retinal pathological conditions indicate that all-trans-retinal itself may play a decisive role in light-induced photoreceptor degeneration.318,320,531”

    From Chemistry of the Retinoid (Visual) Cycle (2014) · cites this paper as [320]

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Authors
Maeda, T., Golczak, M., & Maeda, A.
Affiliations
Case Western Reserve University (US)
Corresponding author
Maeda, Akiko
Venue
Photochemistry and Photobiology
Publisher
Wiley
Published
2012-04-24
Volume
88
Issue
6
Pages
1309-1319
ISSN
  • 0031-8655 (ISSN-L)
  • 1751-1097
OpenAlex
W2022410686
Cited by
92
References
102
Citations by year
2026: 7 · 2025: 6 · 2024: 3 · 2023: 16 · 2022: 6 · 2021: 2 · 2020: 10 · 2019: 7 · 2018: 7 · 2017: 6 · 2016: 2 · 2015: 8 · 2014: 3 · 2013: 6 · 2012: 3
FWCI
0.57
Type
journal article
Language
en
Open access
Locations
  • Photochemistry and Photobiology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Research to Prevent Blindness
  • Case Western Reserve University (P30 EY11373, EY11373)
  • Ohio Lions Eye Research Foundation
  • National Institutes of Health (EY-11373)
  • National Eye Institute (R01EY022658, EY021126, K08EY019880, EY019880, EY009339, K08EY019031, R24EY021126, EY019031, P30EY011373, R01EY009339)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Retinal Development and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Retinoids in leukemia and cellular processes
  • Health Sciences › Medicine › Ophthalmology › Retinal Diseases and Treatments
Keywords
all-trans-retinal, photoreceptors, rhodopsin, visual cycle, retinal degeneration, Stargardt disease, age-related macular degeneration, retinal imaging, photoprotection
MeSH terms
Animals, Humans, Light, Retina, Retinal Degeneration, Retinaldehyde

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