How tiny cAMP signals control insulin-producing beta cells
Mechanisms of Compartmentalized cAMP Signaling
Researchers are looking at how small, localized bursts of a molecule called cAMP affect insulin release in people with adult-onset (type 2) diabetes.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of California, San Diego NIH-funded |
| Lab location | 1 site (La Jolla, United States) |
| Project ID | NIH-11375638 on NIH RePORTER |
What this research studies
This project looks inside pancreatic beta cells to see where and how cAMP and its partner enzyme PKA act to control insulin secretion and cell growth. The team will map tiny cAMP signaling zones, study proteins that anchor PKA (AKAPs), and examine how enzymes that break down cAMP (PDEs) shape these local signals. They use lab-grown beta cells, advanced molecular sensors that track cAMP in real time, and likely animal models to test how changing these signals alters insulin release. The work is aimed at explaining why hormones like GLP-1 affect beta cells and to find points where new therapies might act.
Who could benefit from this research
Good fit: Adults with type 2 (adult-onset) diabetes, especially those using or considering GLP-1–based therapies or willing to donate blood or tissue samples for research, would be most relevant to related participation opportunities.
Not a fit: People without diabetes or those whose diabetes is driven mainly by non–beta cell issues are unlikely to see direct benefits from this basic lab-focused work in the short term.
Why it matters
Potential benefit: If successful, this work could point to new targets or strategies to improve insulin release and make diabetes drugs like GLP-1 agents work better for people with type 2 diabetes.
How similar studies have performed: Prior studies have shown that cAMP and PKA influence insulin secretion and that GLP-1 drugs help, but the precise compartmentalized signaling mechanisms remain a relatively new and unresolved area with limited direct clinical translation so far.
Where this research is happening
La Jolla, United States
- University of California, San Diego — La Jolla, United States (Active)
Researchers
- Principal investigator: Zhang, Jin — University of California, San Diego
- Study coordinator: Zhang, Jin
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.