ArticleScientific reports2019
Depletion of Mitochondrial DNA in Differentiated Retinal Pigment Epithelial Cells.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 19 citations in OpenAlex.
- Retinal pigment epithelium stress following intravitreal ganciclovir: a novel insight from clinical spectrum.Journal of ophthalmic inflammation and infection · 2025Article
- Mitochondrial DNA Damage in the Retinal Pigmented Epithelium (RPE) and Its Role in RPE Pathobiology.Advances in experimental medicine and biology · 2025Review
- Clustered ARPE-19 cells distinct in mitochondrial membrane potential may play a pivotal role in cell differentiation.Scientific reports · 2024Article
- Metabolic Phenotyping of Healthy and Diseased Human RPE Cells.Investigative ophthalmology & visual science · 2024Article
- The Effects of the Coating and Aging of Biodegradable Polylactic Acid Membranes on In Vitro Primary Human Retinal Pigment Epithelium Cells.Biomedicines · 2024Article
- The Anti-Aging Hormone Klotho Promotes Retinal Pigment Epithelium Cell Viability and Metabolism by Activating the AMPK/PGC-1α Pathway.Antioxidants (Basel, Switzerland) · 2023Article
- Retinal Toxicity Induced by Chemical Agents.International journal of molecular sciences · 2022Review
- Modeling of mitochondrial bioenergetics and autophagy impairment in MELAS-mutant iPSC-derived retinal pigment epithelial cells.Stem cell research & therapy · 2022Article
- Role of glycolysis in retinal vascular endothelium, glia, pigment epithelium, and photoreceptor cells and as therapeutic targets for related retinal diseases.International journal of ophthalmology · 2021Review
- Case Report: Multimodal Imaging of Toxic Retinopathies Related to Human Immunodeficiency Virus Antiretroviral Therapies: Maculopathy vs. Peripheral Retinopathy. Report of Two Cases and Review of the Literature.Frontiers in neurology · 2021Article
- Possible A2E Mutagenic Effects on RPE Mitochondrial DNA from Innovative RNA-Seq Bioinformatics Pipeline.Antioxidants (Basel, Switzerland) · 2020Article
- The Emerging Role of Senescence in Ocular Disease.Oxidative medicine and cellular longevity · 2020Review
Corrections and comments
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Authors and funding
4 authors at 3 institutions in 2 countries.
Funding
Abstract
We investigated the effects of treating differentiated retinal pigment epithelial (RPE) cells with didanosine (ddI), which is associated with retinopathy in individuals with HIV/AIDS. We hypothesized that such treatment would cause depletion of mitochondrial DNA and provide insight into the consequences of degradation of RPE mitochondrial function in aging and disease. Treatment of differentiated ARPE-19 or human primary RPE cells with 200 µM ddI for 6-24 days was not cytotoxic but caused up to 60% depletion of mitochondrial DNA, and a similar reduction in mitochondrial membrane potential and NDUFA9 protein abundance. Mitochondrial DNA-depleted RPE cells demonstrated enhanced aerobic glycolysis by extracellular flux analysis, increased AMP kinase activation, reduced mTOR activity, and increased resistance to cell death in response to treatment with the oxidant, sodium iodate. We conclude that ddI-mediated mitochondrial DNA depletion promotes a glycolytic shift in differentiated RPE cells and enhances resistance to oxidative damage. Our use of ddI treatment to induce progressive depletion of mitochondrial DNA in differentiated human RPE cells should be widely applicable for other studies aimed at understanding RPE mitochondrial dysfunction in aging and disease.
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