ArticleExperimental eye research2025
Identifying a role for oxytosis/ferroptosis in Pde6b-associated retinitis pigmentosa.
Article in Experimental eye research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Inferring genetic associations of programmed cell death genes with retinitis pigmentosa through multimodal Mendelian randomization.Molecular medicine (Cambridge, Mass.) · 2026Article
- Photoreceptor Vulnerability to Ferroptosis: Membrane Phospholipid Peroxidation, Mitochondrial Homeostasis, and RPE-Photoreceptor Coupling.Current issues in molecular biology · 2026Review
- Interleukin 27-induced photoreceptor survival is associated with suppression of a novel Muller glia subpopulation.Cell communication and signaling : CCS · 2026Article
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Authors and funding
7 authors.
Funding
Abstract
Inherited retinal diseases (IRDs) are a large heterogeneous group of diseases that lead to visual impairment and complete vision loss. Retinitis pigmentosa (RP) is an IRD with progressive degeneration of photoreceptors and has been associated with mutations in over 80 genes. In this study, we investigated the mechanism of retinal degeneration caused by an inherited mutation in the Pde6b gene in the rd10 mouse model of RP, with a focus on alternative programmed cell death pathways. RNA-seq analysis was used to identify changes in gene expression in rd10 mice, using C57BL/6J mice as non-degenerating genetic background controls. The functional role of differentially expressed genes was investigated using pharmacological treatments and visual acuity was assessed using optomotor kinetic tracking assay. We found increased expression of genes involved in inflammatory response, while expression of genes involved in photoreceptor function and homeostasis were decreased. We also demonstrated increased expression of genes that regulate oxytosis/ferroptosis, a type of regulated necrosis that can promote inflammatory responses. We found no significant changes in expression of genes controlling other types of regulated necrosis. Treating rd10 mice with oxytosis/ferroptosis inhibitors led to significant improvements in visual acuity. Therefore, these findings suggest that disruption of Pde6b activity results in photoreceptor death via oxytosis/ferroptosis, contributing to inflammatory responses in the retina. Our results identify for the first time a possible role of oxytosis/ferroptosis in a model of inherited retinal degeneration and provide a foundation for further studies exploring oxytosis/ferroptosis inhibitors as a potential therapeutic strategy for RP.
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