Genes that help muscles heal
Official title: Genetic Regulation of Skeletal Muscle Repair
Funded at Ottawa Hospital Research Institute · NIH-11193224 · Data updated 2026-11-12
This project looks at a special group of muscle stem cells and the genes they use to learn how muscles repair themselves, which could help people with muscle injuries or age-related muscle weakness.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Ottawa Hospital Research Institute NIH-funded |
| Lab location | 1 site (Ottawa, Canada) |
| Project start | July 15, 1996 |
| Project end | August 31, 2026 |
| Funding year | 2025 |
| Award (this year) | $247,865 |
| NIH project number | 5R01AR044031-28 |
| Project ID | NIH-11193224 on NIH RePORTER |
Who could benefit from this research
✓Could help
People with muscle injuries, degenerative muscle conditions, or age-related loss of muscle strength would be the likely eventual candidates for therapies born from this work.
✕Less likely to help
Patients whose problems are caused primarily by nerve damage, metabolic conditions unrelated to muscle stem cell function, or systemic illnesses may not benefit directly from these findings.
What this research studies
You would be told that researchers are studying satellite cells, the stem cells that rebuild skeletal muscle, to find the subset that can self-renew and drive long-term repair. They use single-cell RNA sequencing and gene-expression signatures to identify a distinct 'satellite stem cell' population. The team follows these cells with lineage tracing and tests their ability to engraft and regenerate muscle using transplantation experiments in lab models. The work aims to map the hierarchy of muscle cells and reveal targets for therapies that boost healing or counteract age-related muscle loss.
Why it matters
Potential benefit: If successful, this work could point to new ways to boost muscle stem cells or develop cell-based therapies to improve muscle repair and treat age-related weakness.
How similar studies have gone: Prior laboratory studies have identified promising satellite cell gene signatures and shown improved engraftment in model systems, but clinical benefits in people remain unproven.
Where this research is happening
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Ottawa Hospital Research Institute
Ottawa, Canada Active
Researchers
- Principal investigator: Rudnicki, Michael a — Ottawa Hospital Research Institute
- Study coordinator: Rudnicki, Michael 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.