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Author Spotlight: Ex Vivo OCT-Based Multimodal Imaging of Human Donor Eyes for Research into Age-Related Macular Degeneration
Published on: May 26, 2023
Aging and Vision
1Department of Ophthalmology, University of California, San Francisco, 10 Koret Way, 94143, San Francisco, CA, USA. marcel.alavi@gmail.com.
Abstract:
Aging involves defined genetic, biochemical and cellular pathways that regulate lifespan. These pathways are called longevity pathways and they have relevance for many age-related diseases. In the eye, longevity pathways are involved in the major blinding diseases, cataract, glaucoma, age-related macular degeneration (AMD) and diabetic retinopathy. Pharmaceutical targeting of longevity pathways can extend healthy lifespan in laboratory model systems. This offers the possibility of therapeutic interventions to also delay onset or slow the progression of age-related eye diseases. I suggest that retinal degeneration may be viewed as accelerated aging of photoreceptors and that interventions extending healthy lifespan may also slow the pace of photoreceptor loss.
Insights
Longevity pathways regulate lifespan and impact age-related diseases. Targeting these pathways may offer new treatments for blinding eye conditions like age-related macular degeneration by slowing photoreceptor aging.
Area of Science:
- Gerontology and ophthalmology
- Molecular biology and genetics
Background:
- Aging is influenced by genetic, biochemical, and cellular pathways.
- These longevity pathways are implicated in age-related diseases.
- Major blinding diseases, including cataract, glaucoma, age-related macular degeneration (AMD), and diabetic retinopathy, involve longevity pathways in the eye.
Purpose of the Study:
- To explore the role of longevity pathways in age-related eye diseases.
- To investigate the potential of pharmaceutical targeting of longevity pathways for therapeutic interventions.
- To propose that retinal degeneration can be viewed as accelerated aging of photoreceptors.
Main Methods:
- Review of existing literature on aging pathways and eye diseases.
- Analysis of the relevance of longevity pathways in ocular pathologies.
- Conceptual framework development linking lifespan extension to photoreceptor health.
Main Results:
- Longevity pathways are critical regulators of lifespan and are involved in age-related diseases.
- These pathways play a significant role in the pathogenesis of major blinding eye conditions.
- Pharmaceutical targeting of longevity pathways has shown promise in extending healthy lifespan in model systems.
Conclusions:
- Targeting longevity pathways presents a potential therapeutic strategy for delaying or slowing age-related eye diseases.
- Interventions aimed at extending healthy lifespan may also mitigate photoreceptor loss.
- Viewing retinal degeneration as accelerated photoreceptor aging provides a novel perspective for therapeutic development.
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