Protecting inner ear hair cells' identity
Transdifferentiation in the Cochlea
This project looks at whether a protein called TBX2 helps inner ear hair cells stay as the sound-sending cells they should be, which could help people with hearing loss.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Northwestern University NIH-funded |
| Lab location | 1 site (Chicago, United States) |
| Project ID | NIH-11124883 on NIH RePORTER |
What this research studies
Scientists will study inner and outer hair cells from the developing mammalian cochlea to see how the TBX2 protein controls their identity. They will remove TBX2 from inner hair cells and use DNA-accessibility tests (ATAC-seq) to find which genes and regulatory regions change when cells switch types. By comparing normal inner hair cells, normal outer hair cells, and inner hair cells lacking TBX2, they will map the chain of gene-expression events and epigenetic changes that drive one cell type into another. The work is done in the laboratory using animal cochleas and molecular techniques to identify targets that could later support therapies to preserve or restore the correct cell types in the ear.
Who could benefit from this research
Good fit: People with sensorineural hearing loss related to loss or dysfunction of inner ear hair cells would be the most likely candidates for future therapies arising from this work.
Not a fit: People whose hearing loss is due to middle-ear (conductive) problems, nerve or brain-level hearing disorders, or causes unrelated to cochlear hair-cell identity are unlikely to benefit.
Why it matters
Potential benefit: If successful, this could point to ways to preserve or regenerate the sound-sending inner hair cells and eventually lead to treatments that improve hearing.
How similar studies have performed: Prior animal studies have shown some success converting cochlear cells toward hair-cell–like identities, but translating these changes into restored hearing remains experimental.
Where this research is happening
Chicago, United States
- Northwestern University — Chicago, United States (Active)
Researchers
- Principal investigator: Garcia-Anoveros, Jaime — Northwestern University
- Study coordinator: Garcia-Anoveros, Jaime
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.