ArticleAdvances in experimental medicine and biology2023
Decoding Race and Age-Related Macular Degeneration: GPR 143 Activity Is the Key.
Article in Advances in experimental medicine and biology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed, 4 citations in OpenAlex.
- Levodopa Suppresses Choroidal Neovascularization Through a Tyrosinase-Dependent Dual Mechanism.Investigative ophthalmology & visual science · 2026Article
- Zinc in eye health, retinal biology and disease.Progress in retinal and eye research · 2025Review
- Specialised features of melanosomes in health and disease in the retinal pigment epithelium.Frontiers in cell and developmental biology · 2025Review
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Age-related macular degeneration (AMD) is a leading cause of irreversible blindness in the developed world. Caucasians are eightfold more likely to develop AMD than any other race, indicating a racial bias in AMD incidence which is unexplained. We hypothesize that pigmentation of the retinal pigment epithelium (RPE) and choroid protects from AMD and underlies this peculiar racial bias. We investigated GPR143, a receptor in the pigmentation pathway, which is activated by a melanin synthesis by-product, l-dopa. In this model, greater pigmentation leads to greater l-dopa production and, in turn, greater GPR143 signaling. GPR143 activity upregulates PEDF and downregulates both VEGF and exosomes; all of which reduce the angiogenic potential in the retina. Moreover, we demonstrate that GPR143 signaling enhances the digestion of shed photoreceptor outer segments. Together, our data suggests a central role for GPR143 signaling in RPE-photoreceptor interaction which is critical to healthy vision.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.