Protecting the heart's natural pacemaker cells
Official title: Regulation of cardiac pacemaker cell cytoarchitecture
Funded at Univ of North Carolina Chapel Hill · NIH-11308244 · Data updated 2026-11-12
Researchers are looking at how the heart’s natural pacemaker cells and their supporting tissue stay protected from mechanical stress to help adults with pacemaker problems.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Univ of North Carolina Chapel Hill NIH-funded |
| Lab location | 1 site (Chapel Hill, United States) |
| Project start | April 5, 2019 |
| Project end | February 28, 2029 |
| Funding year | 2026 |
| Award (this year) | $589,642 |
| NIH project number | 5R01HL146626-08 |
| Project ID | NIH-11308244 on NIH RePORTER |
Who could benefit from this research
✓Could help
Adults with pacemaker dysfunction, people with heart failure at risk for pacemaker cell problems, or patients considering pacemaker implantation would be most relevant.
✕Less likely to help
People with non-cardiac conditions or those whose issues are already fully managed by an implanted pacemaker are unlikely to receive direct benefit from this basic science work.
What this research studies
The team at UNC will study pacemaker cells to identify molecules they release and how those molecules activate nearby support cells to build a soft, protective matrix around the pacemaker cells. They will use laboratory experiments, including cell and tissue work and likely analyses of human samples or relevant models, to map the molecular pathways that create a low-strain niche. The researchers will change these pathways in the lab to see how that affects the mechanical environment around pacemaker cells and their electrical function. The goal is to point toward strategies that could prevent pacemaker cell failure or guide new protective treatments.
Why it matters
Potential benefit: If successful, this work could lead to therapies or approaches that protect natural pacemaker cells and reduce the need for artificial pacemaker implantation.
How similar studies have gone: Earlier lab findings from this group showed that low cellular strain helps pacemaker cells maintain their structure, but moving these molecular findings into patient treatments is still largely novel and untested.
Where this research is happening
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Univ of North Carolina Chapel Hill
Chapel Hill, United States Active
Researchers
- Principal investigator: Bressan, Michael C — Univ of North Carolina Chapel Hill
- Study coordinator: Bressan, Michael C
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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.