How the pain sensor TRPM3 opens, closes, and responds to medicines
Structural Basis of Nociceptor Channel TRPM3 gating and pharmacology
This project looks at how the pain-sensing protein TRPM3 works and how medicines might block it to reduce heat-related pain.
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-11169962 on NIH RePORTER |
What this research studies
Researchers will determine the three-dimensional shape of the TRPM3 channel that sits on pain-sensing nerve endings. They will study how TRPM3 opens and closes in response to heat and chemical signals using lab-based cell experiments and molecular techniques. The team will test how drugs, including existing medicines repurposed for this purpose, interact with TRPM3 to reduce its activity. Some experiments will use mouse models of inflammatory heat pain to see whether blocking TRPM3 lessens pain-like behaviors and to identify promising targets for new pain treatments.
Who could benefit from this research
Good fit: People with heat-triggered or inflammatory thermal pain, or those whose pain has not responded to current treatments, would be the most likely candidates to benefit from drugs developed from this work.
Not a fit: Patients whose pain is driven by unrelated mechanisms (for example, some forms of neuropathic pain not linked to heat-sensitive channels) may not benefit from TRPM3-targeted approaches.
Why it matters
Potential benefit: If successful, this work could lead to new pain-relief medicines that target TRPM3 and lessen heat-related or inflammatory pain without relying on opioids.
How similar studies have performed: Animal studies show that removing or blocking TRPM3 reduces inflammatory heat pain and that low-dose primidone can relieve such pain in mice, but benefits in humans remain unproven.
Where this research is happening
Chicago, United States
- Northwestern University — Chicago, United States (Active)
Researchers
- Principal investigator: Du, Juan — Northwestern University
- Study coordinator: Du, Juan
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.