ArticleCell death and differentiation2024
TIN2 modulates FOXO1 mitochondrial shuttling to enhance oxidative stress-induced apoptosis in retinal pigment epithelium under hyperglycemia.
Article in Cell death and differentiation, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Chitosan-Functionalized Liposome-Mediated Fundus Delivery of Epigallocatechin-3-Gallate for Diabetic Retinopathy Therapy.Advanced healthcare materials · 2026Article
- Mitochondrial Quality Control in Age-Related Diseases: From Molecular Architecture to Precision Therapeutics.Antioxidants (Basel, Switzerland) · 2026Review
- Ferroptosis in diabetic retinopathy: cellular heterogeneity, progression, and therapeutic targets.Molecular biology reports · 2026Review
- Dual-Target ROS-Driven Spatiotemporal Senolysis for Vascular Repair and Immune Microenvironment Reprogramming in the Treatment of Ocular Fundus Neovascularization.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Isorhamnetin inhibits mechanical stress-induced chondrocyte apoptosis through activation of the ROS/SRC/FOXO1 signaling pathway.Scientific reports · 2026Article
- The diabetic retina-brain axis hypothesis in diabetic cognitive impairment: from pathophysiological mechanisms to therapeutic implications.Frontiers in endocrinology · 2026Review
- Lysosomal dysfunction in diabetes and diabetic complications.Frontiers in endocrinology · 2026Review
- Semaglutide Mitigates Ischemic Brain Injury by Inhibiting Ferroptosis via Modulation of FoXO1 and DRP1 Pathways.Molecular neurobiology · 2025Article
- Multi-omics and experimental validation studies reveal key biomarkers of cellular senescence in diabetic retinopathy.Diabetology & metabolic syndrome · 2025Article
- Puerarin alleviates high glucose-induced lens epithelial cell damage by activating the Nrf2 Signaling pathway to inhibit oxidative stress.Toxicology research · 2025Article
- Exploring the Link Between Telomeres and Mitochondria: Mechanisms and Implications in Different Cell Types.International journal of molecular sciences · 2025Review
- Targeting oxidative stress in diabetic retinopathy: mechanisms, pathology, and novel treatment approaches.Frontiers in immunology · 2025Review
- Mitochondrial dysfunction in diabetic ulcers: pathophysiological mechanisms and targeted therapeutic strategies.Frontiers in cell and developmental biology · 2025Review
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8 authors.
Funding
Abstract
Progressive dysfunction of the retinal pigment epithelium (RPE) and the adjacent photoreceptor cells in the outer retina plays a pivotal role in the pathogenesis of diabetic retinopathy (DR). Here, we observed a marked increase in oxidative stress-induced apoptosis in parallel with higher expression of telomeric protein TIN2 in RPE cells under hyperglycemia in vivo and in vitro. Delving deeper, we confirm that high glucose-induced elevation of mitochondria-localized TIN2 compromises mitochondrial activity and weakens the intrinsic antioxidant defense, thereby leading to the activation of mitochondria-dependent apoptotic pathways. Mechanistically, mitochondrial TIN2 promotes the phosphorylation of FOXO1 and its relocation to the mitochondria. Such translocation of transcription factor FOXO1 not only promotes its binding to the D-loop region of mitochondrial DNA-resulting in the inhibition of mitochondrial respiration-but also hampers its availability to nuclear target DNA, thereby undermining the intrinsic antioxidant defense. Moreover, TIN2 knockdown effectively mitigates oxidative-induced apoptosis in diabetic mouse RPE by preserving mitochondrial homeostasis, which concurrently prevents secondary photoreceptor damage. Our study proposes the potential of TIN2 as a promising molecular target for therapeutic interventions for diabetic retinopathy, which emphasizes the potential significance of telomeric proteins in the regulation of metabolism and mitochondrial function. Created with BioRender ( https://www.biorender.com/ ).
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