ArticleInvestigative ophthalmology & visual science2024
Cholesterol Accumulation Promotes Photoreceptor Senescence and Retinal Degeneration.
Article in Investigative ophthalmology & visual science, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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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.
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Who cites it
5 citing papers in PubMed.
- The role of lipid metabolism in neuronal senescence.FEBS open bio · 2026Review
- The contribution of ferroptosis to the epithelial-mesenchymal transition phenotype in models of age-related macular degeneration.Frontiers in cell and developmental biology · 2026Article
- The Landscape of Vascular Endothelial Growth Factor Inhibition in Retinal Diseases.Investigative ophthalmology & visual science · 2025Review
- SenMayo transcriptomic senescence panel highlights glial cells in the ageing mouse and human retina.npj aging · 2024Article
- Evaluation of Reticular Pseudodrusen by Polarization-Sensitive Optical Coherence Tomography: Case Report.Case reports in ophthalmologyArticle
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Authors and funding
11 authors.
Funding
Abstract
Purpose: Dysregulated cholesterol metabolism is critical in the pathogenesis of AMD. Cellular senescence contributes to the development of numerous age-associated diseases. In this study, we investigated the link between cholesterol burden and the cellular senescence of photoreceptors. Methods: Retinas from rod-specific ATP binding cassette subfamily A member 1 (Abca1) and G member 1 (Abcg1) (Abca1/g1-rod/-rod) knockout mice fed with a high-fat diet were analyzed for the signs of cellular senescence. Real-time quantitative PCR and immunofluorescence were used to characterize the senescence profile of the retina and cholesterol-treated photoreceptor cell line (661W). Inducible elimination of p16(Ink4a)-positive senescent cells (INK-ATTAC) mice or the administration of senolytic drugs (dasatinib and quercetin: D&Q) were used to examine the impact of senolytics on AMD-like phenotypes in Abca1/g1-rod/-rod retina. Results: Increased accumulation of senescent cells as measured by markers of cellular senescence was found in Abca1/g1-rod/-rod retina. Exogenous cholesterol also induced cellular senescence in 661W cells. Selective elimination of senescent cells in Abca1/g1-rod/-rod;INK-ATTAC mice or by administration of D&Q improved visual function, lipid accumulation in retinal pigment epithelium, and Bruch's membrane thickening. Conclusions: Cholesterol accumulation promotes cellular senescence in photoreceptors. Eliminating senescent photoreceptors improves visual function in a model of retinal neurodegeneration, and senotherapy offers a novel therapeutic avenue for further investigation.
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Registered trials
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