Fibrosis, inflammation, and bone growth in joint injury linked arthritis
Official title: Fibrosis, inflammation, and osteophyte formation in post-traumatic osteoarthritis
Funded at Washington University · NIH-11370362 · Data updated 2026-11-12
A study exploring how injury-triggered changes in joint tissue lead to ongoing inflammation, fibrosis, and bone growth, with the aim of finding ways to slow or stop PTOA.
Quick facts
| Grant type | NIH-funded research |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Washington University NIH-funded |
| Lab location | 1 site (Saint Louis, United States) |
| Project start | May 1, 2023 |
| Project end | April 30, 2028 |
| Funding year | 2026 |
| Award (this year) | $228,270 |
| NIH project number | 5R00AR081894-04 |
| Project ID | NIH-11370362 on NIH RePORTER |
Who could benefit from this research
✓Could help
People who have sustained a joint injury and are at risk for PTOA may ultimately benefit from advances arising from this research.
✕Less likely to help
The study uses animal models and molecular analyses; individuals without PTOA or those not related to joint injury may not directly benefit.
What this research studies
This project looks at how a joint injury can set off multiple tissue changes that drive post-traumatic osteoarthritis. Researchers will examine a signaling pathway called cWnt/β-catenin and a protein called Rspo2, which may push cells to become pro-fibrotic and to promote inflammation. Using single-cell RNA sequencing and other modern techniques in mouse models, they’ll map which cells produce Rspo2 and how they respond, shaping the disease process. The goal is to identify targets that could be turned into treatments to reduce pain, preserve cartilage, and limit abnormal bone formation after injury.
Why it matters
Potential benefit: If successful, the work could lead to new strategies to prevent or slow PTOA after joint injuries, potentially reducing pain and disability.
How similar studies have gone: Previous studies have linked cWnt signaling and Rspo2 to joint pathology, with some promising leads but this work aims to map cell-level interactions more comprehensively.
Where this research is happening
-
Washington University
Saint Louis, United States Active
Researchers
- Principal investigator: Knights, Alexander John — Washington University
- Study coordinator: Knights, Alexander John
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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.