How photoreceptors move proteins to their light-sensing outer segment
Understanding Photoreceptor Trafficking Pathways to the Outer Segment
This project looks at how eye cells deliver specific proteins to the part of the cell that captures light, with the goal of helping people with inherited vision loss.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of Michigan at Ann Arbor NIH-funded |
| Lab location | 1 site (Ann Arbor, United States) |
| Project ID | NIH-11243543 on NIH RePORTER |
What this research studies
Researchers will track where key proteins (rhodopsin, peripherin-2, ABCA4, and the CNG channel) travel inside rod and cone photoreceptor cells using laboratory models that mirror the human retina. They will use imaging, biochemical labeling, and cell biology techniques to follow different delivery routes to the outer segment. Experiments will combine animal and cellular models and examine disease-linked protein variants to see why cargos choose particular pathways. The team aims to link trafficking defects to photoreceptor death in conditions like retinitis pigmentosa, cone-rod dystrophy, and Stargardt disease.
Who could benefit from this research
Good fit: People with inherited photoreceptor disorders such as retinitis pigmentosa, cone-rod dystrophy, or Stargardt disease, or individuals willing to donate retinal tissue or clinical data, would be most relevant.
Not a fit: People whose vision loss stems from non-photoreceptor causes (for example optic nerve disease, corneal disease, or advanced end-stage eye conditions) are unlikely to benefit directly from this research.
Why it matters
Potential benefit: If successful, this work could reveal molecular targets to prevent photoreceptor loss and inform new treatments for inherited retinal dystrophies.
How similar studies have performed: Prior lab and animal studies have identified some trafficking steps and disease links, but this comprehensive comparison across multiple cargos and routes is relatively novel.
Where this research is happening
Ann Arbor, United States
- University of Michigan at Ann Arbor — Ann Arbor, United States (Active)
Researchers
- Principal investigator: Pearring, Jillian Nydam — University of Michigan at Ann Arbor
- Study coordinator: Pearring, Jillian Nydam
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.