Sensory nerves and joint cells talk to each other in knee arthritis
Official title: Sensory neuron fibroblast crosstalk in knee osteoarthritis
Funded at Wake Forest University Health Sciences · NIH-11453379 · Data updated 2026-11-12
This grant tests how nerve signals and joint cells interact in knee osteoarthritis, with a focus on CGRP pathways and how they affect pain and joint damage.
Quick facts
| Grant type | R21 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Wake Forest University Health Sciences NIH-funded |
| Lab location | 1 site (Winston-Salem, United States) |
| Project start | September 1, 2026 |
| Project end | August 31, 2028 |
| Funding year | 2026 |
| Award (this year) | $426,250 |
| NIH project number | 1R21AR086401-01A1 |
| Project ID | NIH-11453379 on NIH RePORTER |
Who could benefit from this research
✓Could help
Patients with knee osteoarthritis or related joint pain could benefit from future therapies arising from this research.
✕Less likely to help
Early-stage preclinical work may not yet translate to immediate patient benefits.
What this research studies
We will study how signals from sensory nerves (like CGRP) affect different cell types in the knee joint over time to see how pain and joint damage develop in osteoarthritis. Using animal models and cellular studies, the project will explore how blocking CGRP or altering its signaling changes pain behavior, inflammation, and tissue remodeling. The researchers aim to map which cells respond to CGRP and whether effects differ between males and females. The work could reveal why some treatments help with pain but worsen tissue changes in certain models. Findings could guide future therapies that target nerve–joint interactions to relieve pain while protecting the joint.
Why it matters
Potential benefit: If successful, this work could lead to better-targeted treatments for knee OA pain that minimize joint damage.
How similar studies have gone: Prior studies showed CGRP-related pain reduction in some models, but long-term and sex-specific effects remain mixed, making this research novel in knee OA.
Where this research is happening
-
Wake Forest University Health Sciences
Winston-Salem, United States Active
Researchers
- Principal investigator: Peters, Christopher Michael — Wake Forest University Health Sciences
- Study coordinator: Peters, Christopher Michael
Related research
Other NIH-funded projects on the same topics.
-
Understanding how knee pain and knee obesity and muscle loss affect knee osteoarthritis
This project looks at how knee swelling, excess knee fat, and muscle loss relate to pain and structural changes in knee osteoarthritis in adults.
-
Nanoparticles delivering an sPLA2 blocker for knee osteoarthritis
This project uses tiny, drug-filled nanoparticles to deliver an sPLA2-blocking medicine into the knee to reduce inflammation and slow knee osteoarthritis in people with painful knee OA.
-
Remote tai chi for knee OA in everyday care
A nationwide study will test remotely delivered tai chi for people with knee osteoarthritis to see if it helps pain and function when added to usual care.
-
From knee to brain: a whole-body look at inflammation in knee osteoarthritis
Aims to map inflammation across the body and brain in people with knee osteoarthritis using advanced imaging to help explain and improve pain and treatment.
-
Determinants of rapid knee osteoarthritis progression using radiograph features
A patient-friendly look at how knees with osteoarthritis may progress more quickly, using advanced X-ray measurements to identify who is at higher risk.
-
New ways to study nerve cells linked to knee osteoarthritis pain
A researcher at a major university is exploring new models to understand how dorsal root ganglion nerves drive knee OA pain, with the aim of finding better ways to relieve pain.
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.