ArticleCells2022
Relative Importance of Different Elements of Mitochondrial Oxidative Phosphorylation in Maintaining the Barrier Integrity of Retinal Endothelial Cells: Implications for Vascular-Associated Retinal Diseases.
Article in Cells, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 13 citations in OpenAlex.
- HDAC3 mediates retinal endothelial cell metabolic reprogramming and angiogenesis.Acta pharmacologica Sinica · 2026Article
- Organophosphate pesticide DEDT promotes diabetic retinopathy progression via AMPK/Nrf2/HO-1 pathway.Scientific reports · 2026Article
- When Mitochondria Falter, the Barrier Fails: Mechanisms of Inner Blood-Retinal Barrier (iBRB) Injury and Opportunities for Mitochondria-Targeted Repair.International journal of molecular sciences · 2025Review
- Bezafibrate improves mitochondrial function, blood-brain barrier integrity, and social deficits in models of 22q11.2 deletion syndrome.Science translational medicine · 2025Article
- Glyceraldehyde-3-phosphate dehydrogenase/1,3-bisphosphoglycerate-NADH as key determinants in controlling human retinal endothelial cellular functions: Insights from glycolytic screening.The Journal of biological chemistry · 2025Article
- Early exposure to Western Diet exacerbates visual outcomes in female mice.bioRxiv : the preprint server for biology · 2024Article
- Clustered ARPE-19 cells distinct in mitochondrial membrane potential may play a pivotal role in cell differentiation.Scientific reports · 2024Article
- The Warburg effect alters amino acid homeostasis in human retinal endothelial cells: implication for proliferative diabetic retinopathy.Scientific reports · 2023Article
- Article
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 2 countries.
Funding
Abstract
purposeMitochondrial dysfunction is central to breaking the barrier integrity of retinal endothelial cells (RECs) in various blinding eye diseases such as diabetic retinopathy and retinopathy of prematurity. Therefore, we aimed to investigate the role of different mitochondrial constituents, specifically those of oxidative phosphorylation (OxPhos), in maintaining the barrier function of RECs.
methodsElectric cell-substrate impedance sensing (ECIS) technology was used to assess in real time the role of different mitochondrial components in the total impedance (Z) of human RECs (HRECs) and its components: capacitance (C) and the total resistance (R). HRECs were treated with specific mitochondrial inhibitors that target different steps in OxPhos: rotenone for complex I, oligomycin for complex V (ATP synthase), and FCCP for uncoupling OxPhos. Furthermore, data were modeled to investigate the effects of these inhibitors on the three parameters that govern the total resistance of cells: Cell-cell interactions (R
resultsRotenone (1 µM) produced the greatest reduction in Z, followed by FCCP (1 µM), whereas no reduction in Z was observed after oligomycin (1 µM) treatment. We then further deconvoluted the effects of these inhibitors on the R
conclusionOur study demonstrates the differential roles of complex I, complex V, and OxPhos coupling in maintaining the barrier functionality of HRECs. We specifically showed that complex I is the most important component in regulating HREC barrier integrity. These observed differences are significant since they could serve as the basis for future pharmacological and gene expression studies aiming to improve the activity of complex I and thereby provide avenues for therapeutic modalities in endothelial-associated retinal diseases.
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