How changes in the eye’s support matrix change retinal cell metabolism
Metabolic dysfunction from ECM remodeling in diseases of human RPE
The team is testing whether breakdown of the layer under retinal pigment epithelial (RPE) cells forces those cells to make and store extra fat, which may lead to early age-related macular degeneration or related inherited retinal disease.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of Washington NIH-funded |
| Lab location | 1 site (Seattle, United States) |
| Project ID | NIH-11136930 on NIH RePORTER |
What this research studies
From my perspective, the researchers will study human RPE cells and models that carry mutations linked to Sorsby Fundus Dystrophy and features of age-related macular degeneration. They will mimic breakdown of the extracellular matrix (ECM) and track how RPE cells change their usage of branched-chain amino acids and other fuels to make lipids. The lab will use genetic tools such as CRISPR to recreate disease-linked changes and measure lipid buildup, mitochondrial activity, and antioxidant defenses. Findings will be based on experiments with human-derived cells and laboratory models to trace how ECM-derived material alters RPE metabolism.
Who could benefit from this research
Good fit: People with early age-related macular degeneration or with Sorsby Fundus Dystrophy—or those willing to provide donated eye tissue or cells—would be most relevant to this line of research.
Not a fit: Patients with unrelated eye diseases or those with advanced, end-stage vision loss from late AMD are less likely to benefit directly from these metabolic findings in the near term.
Why it matters
Potential benefit: If proven, this work could point to new metabolic targets or treatments to prevent harmful lipid deposits and slow early AMD or related inherited retinal degeneration.
How similar studies have performed: Prior research links ECM changes and TIMP3 mutations to drusen and retinal disease, but the specific idea that ECM breakdown supplies metabolites that reprogram RPE toward branched-chain amino acid-driven lipid synthesis is a newer, not yet proven concept.
Where this research is happening
Seattle, United States
- University of Washington — Seattle, United States (Active)
Researchers
- Principal investigator: Chao, Jennifer Rayming — University of Washington
- Study coordinator: Chao, Jennifer Rayming
About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page below.