How type III collagen helps build and protect cartilage
Roles of Type III Collagen in the Matrix Assembly and Mechanobiology of Cartilage
Researchers are looking at whether a protein called type III collagen helps cartilage form correctly and resist damage, which could matter for people with or at risk for osteoarthritis.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Drexel University NIH-funded |
| Lab location | 1 site (Philadelphia, United States) |
| Project ID | NIH-11325326 on NIH RePORTER |
What this research studies
This project focuses on type III collagen and how it controls the tiny collagen fibers that give cartilage its strength and mechanical behavior. The team will use lab-grown cartilage and animal models, including a joint-injury model that mimics post‑traumatic osteoarthritis, to compare normal and collagen III–deficient tissue. They will measure fiber assembly, the pericellular matrix around cartilage cells, and how cells sense mechanical forces using microscopy and mechanical testing. Understanding these steps during growth, maintenance, and after injury could guide better materials or treatments that restore healthy cartilage structure.
Who could benefit from this research
Good fit: People with osteoarthritis, especially those with prior joint injuries that raise the risk of post‑traumatic OA, or patients willing to donate joint tissue for research would be most relevant to this work.
Not a fit: Patients without cartilage damage or whose symptoms are driven primarily by non‑cartilage causes (for example, purely inflammatory conditions) may not see direct benefit from this basic research in the near term.
Why it matters
Potential benefit: If successful, the findings could guide new regenerative materials or therapies that better restore cartilage structure and help slow or prevent osteoarthritis.
How similar studies have performed: Prior studies show collagen architecture affects cartilage mechanics, but targeting type III collagen specifically in cartilage formation and injury is a relatively new angle with translational benefit not yet proven.
Where this research is happening
Philadelphia, United States
- Drexel University — Philadelphia, United States (Active)
Researchers
- Principal investigator: Han, Lin — Drexel University
- Study coordinator: Han, Lin
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.