ArticleCell death & disease2017
Dysfunctional autophagy in RPE, a contributing factor in age-related macular degeneration.
Article in Cell death & disease, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 244 papers.
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Who cites it
244 citing papers in PubMed, 344 citations in OpenAlex.
- The prevalence of age-related macular degeneration and osteoporosis in the older Polish population: Is there a link?PloS one · 2023Trial
- Insights into the modulation of age-related macular degeneration: Molecular and systems-level perspectives.Acta ophthalmologica · 2026Article
- A critical role for mitochondrial dynamics in cigarette smoke condensate-induced RPE senescence.Free radical biology & medicine · 2026Article
- Sustained proton-pump inhibitor exposure and incident age-related macular degeneration: a new-user, population-based cohort study.BMJ open ophthalmology · 2026Observational
- Reduction of Lipid Droplets Modulates the Injury Response and Enhances CNTF-Induced Axon Regeneration Following Optic Nerve Crush.Molecular neurobiology · 2026Article
- The Molecular Basis of Ocular Aging: Mechanisms, Pathologies, and Emerging Therapeutics.Investigative ophthalmology & visual science · 2026Review
- Mitochondrial Dysfunction and Oxidative Stress in Retinal Degeneration: Mechanisms, Biomarkers, and Therapeutic Perspectives.Current issues in molecular biology · 2026Review
- Non-Erythropoietic EPO (EPO-R76E) Protects RPE Cells from Ferroptosis by Modulating the Labile Iron Pool and NRF2-GPX4 Axis.Antioxidants (Basel, Switzerland) · 2026Article
- Neuronal death and accumulation of lipid droplets and glycogen granules within retinal pigment epithelium under the influence of mTOR and autophagy.Journal of neural transmission (Vienna, Austria : 1996) · 2026Article
- Spontaneous whole retinal degeneration in aged Beclin1 heterozygous mice.Journal of neural transmission (Vienna, Austria : 1996) · 2026Article
- Age-dependent induction of ER stress in retinal pigment epithelium impairs phagocytosis via ADAM17-dependent MERTK shedding.The Journal of biological chemistry · 2026Article
- Fluorescence lifetime imaging ophthalmoscopy (FLIO) of patients with neovascular age-related macular degeneration before and after treatment with intravitreal ranibizumab.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026Article
- Mapping the Hypoxic Fitness Landscape of Retinal Pigment Epithelial Cells.International journal of molecular sciences · 2026Article
- Targeting CDH13 as a therapeutic strategy to mitigate pathological ocular angiogenesis.Journal of translational medicine · 2026Article
- Outer retinal tubulation associated with photoreceptor degeneration.Progress in retinal and eye research · 2026Review
- Molecular Crosstalk in Age-Related Macular Degeneration: Integrating Oxidative Stress, Inflammation, microRNAs, and Genetic Susceptibility Toward Precision Therapeutics.Biomolecules · 2026Review
- Metformin and incidence of age-related macular degeneration in people with diabetes: a population-based 5-year case-control study.BMJ open ophthalmology · 2026Article
- Age-Driven Lipid Remodeling Activates Lysosome-Mediated Plasma Membrane Repair.Research square · 2026Article
- Retinal pigment epithelium pathology in age-related macular degeneration: mitigation with melatonin.Frontiers in medicine · 2026Review
- Review
184 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Age-related macular degeneration (AMD) is a devastating neurodegenerative disease and a major cause of blindness in the developed world. Owing to its complexity and the lack of an adequate human model that recapitulates key aspects of the disease, the molecular mechanisms of AMD pathogenesis remain poorly understood. Here we show that cultured human retinal pigment epithelium (RPE) from AMD donors (AMD RPE) are functionally impaired and exhibit distinct phenotypes compared with RPE cultured from normal donors (normal RPE). Accumulation of lipid droplets and glycogen granules, disintegration of mitochondria, and an increase in autophagosomes were observed in AMD RPE cultures. Compared with normal RPE, AMD RPE exhibit increased susceptibility to oxidative stress, produce higher levels of reactive oxygen species (ROS) under stress conditions, and showed reduced mitochondrial activity. Measurement of the ratio of LC3-II/ LC3-I, revealed impaired autophagy in AMD RPE as compared with normal RPE. Autophagic flux was also reduced in AMD RPE as compared with normal RPE, as shown by inability of AMD RPE to downregulate p62 levels during starvation. Impaired autophagic pathways were further shown by analyzing late autophagic vesicles; immunostaining with lysosome-associated membrane protein 1 (LAMP-1) antibody revealed enlarged and annular LAMP-1-positive organelles in AMD RPE as opposed to smaller discrete puncta observed in normal RPE. Our study provides insights into AMD cellular and molecular mechanisms, proposes dysfunctional autophagy as an underlying mechanism contributing to the pathophysiology of the disease, and opens up new avenues for development of novel treatment strategies.
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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.