How bone cells control bone loss and repair
Osteocyte Control of Bone Remodeling
This project looks at how specific bone cells called osteocytes and osteoblasts control signals that cause or prevent bone loss, which matters for people with weak bones like osteoporosis.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Univ of Arkansas for Med Scis NIH-funded |
| Lab location | 1 site (Little Rock, United States) |
| Project ID | NIH-11301866 on NIH RePORTER |
What this research studies
The team studies bone cells in the lab and in animal models using genetic tools to see which cells make OPG (a protective protein) and which make RANKL (a signal that drives bone breakdown). They focus on the role of beta-catenin in osteocytes and how osteoblast-derived OPG protects different parts of bone. Experiments use cell analyses and targeted gene deletions to separate the roles of osteoblasts and osteocytes. The work aims to explain why some patients lose bone quickly after stopping treatments such as denosumab.
Who could benefit from this research
Good fit: People with osteoporosis or low bone density, especially those who are starting or stopping anti-RANKL treatment (denosumab), would be the most directly relevant patient group.
Not a fit: Patients with bone problems caused by acute trauma, unrelated metabolic conditions, or those seeking immediate treatment benefit are unlikely to see direct benefit from this basic lab-focused work.
Why it matters
Potential benefit: If successful, the results could point to new ways to prevent bone loss and reduce the rebound of bone thinning after stopping treatments like denosumab.
How similar studies have performed: Prior lab and animal research has shown that RANKL and OPG control bone resorption, but the exact contributions of osteocytes versus osteoblasts and the role of beta-catenin remain under study.
Where this research is happening
Little Rock, United States
- Univ of Arkansas for Med Scis — Little Rock, United States (Active)
Researchers
- Principal investigator: O'brien, Charles a — Univ of Arkansas for Med Scis
- Study coordinator: O'brien, Charles 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.