Helping older joints regrow healthy cartilage
Promoting regenerative repair of aged cartilage
This work tries a two-part approach—turning on a youth-promoting protein (SIRT6) and blocking a damage-promoting signal (ASK1)—to help older adults' cartilage heal better and fight osteoarthritis.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Thomas Jefferson University NIH-funded |
| Lab location | 1 site (Philadelphia, United States) |
| Project ID | NIH-11261053 on NIH RePORTER |
What this research studies
Researchers will study cartilage-forming stem cells from aged joints in the lab to see how SIRT6 activation and ASK1 blocking change their survival and ability to make cartilage. They will then give these treatments in older male and female rodents to see if joint cartilage repairs more effectively. The team will also examine the epigenetic switches SIRT6 controls to understand why older stem cells lose healing ability. Together, these steps aim to create treatments that restore healing in aged joints and improve outcomes of stem-cell therapies.
Who could benefit from this research
Good fit: People with age-related osteoarthritis or cartilage injuries—especially older adults whose joint stem cells show poor repair—are the population this research aims to help.
Not a fit: Patients whose joint damage is driven by non-aging causes (for example, active inflammatory autoimmune arthritis or infection) may not benefit from this approach.
Why it matters
Potential benefit: If successful, this approach could improve cartilage repair in older adults, enhance the effectiveness of stem-cell treatments, and slow or reverse osteoarthritis progression.
How similar studies have performed: Previous lab work shows SIRT6 can protect cells and ASK1 promotes damage, but combining SIRT6 activation with ASK1 inhibition to rejuvenate aged cartilage is a novel approach not yet proven in humans.
Where this research is happening
Philadelphia, United States
- Thomas Jefferson University — Philadelphia, United States (Active)
Researchers
- Principal investigator: Collins, John a — Thomas Jefferson University
- Study coordinator: Collins, John a
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.