Retinoic acid’s role in building the eye’s sharp-vision center
Role of retinoic acid signaling in fovea development
This work aims to recreate the fovea—the part of the retina used for reading and recognizing faces—by using retinoic acid (a vitamin A signal) patterns in lab-grown human retinal tissue to help people with macular diseases.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of Pittsburgh at Pittsburgh NIH-funded |
| Lab location | 1 site (Pittsburgh, United States) |
| Project ID | NIH-11249966 on NIH RePORTER |
What this research studies
As someone interested in central vision, here’s what the team will do: they first use chick embryos, which naturally form fovea-like regions, to map when and where retinoic acid signals appear during fovea formation. Next they apply those same timing and pattern cues to human stem cell–derived retinal organoids grown in the lab to try to induce a fovea-like high-acuity area. They will follow the organoids over time and compare their structure, cell types, and function to normal organoids and the chick data to see if foveal features emerge. The goal is to create a human-relevant model of the fovea that can be used to study macular degeneration and test new therapies.
Who could benefit from this research
Good fit: People with age-related macular degeneration or other central (foveal) vision loss who are willing to donate cells or engage with organoid-based research would be the most relevant participants.
Not a fit: Patients whose vision loss affects only peripheral vision or who have eye conditions unrelated to the macula are unlikely to see direct benefit from this work.
Why it matters
Potential benefit: If successful, this could produce lab-grown human fovea models that speed development of targeted treatments for macular degeneration and other central-vision disorders.
How similar studies have performed: Retinal organoids have modeled many retinal cell types before, but creating a true fovea is largely novel, with recent chick and RA-patterning work providing promising early support.
Where this research is happening
Pittsburgh, United States
- University of Pittsburgh at Pittsburgh — Pittsburgh, United States (Active)
Researchers
- Principal investigator: Da Silva, Susana Isabel M M a — University of Pittsburgh at Pittsburgh
- Study coordinator: Da Silva, Susana Isabel M M a
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.