How a beta-cell potassium channel links early too much insulin to later diabetes
KATP deficiency in hyperinsulinism and diabetes
This project looks at how loss of a specific potassium channel in insulin-making cells can first cause excess insulin and later lead to diabetes, with the goal of helping people with hyperinsulinism and diabetes.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Washington University NIH-funded |
| Lab location | 1 site (Saint Louis, United States) |
| Project ID | NIH-11311343 on NIH RePORTER |
What this research studies
Researchers will use laboratory models that can turn off the KATP channel in pancreatic beta cells to recreate the switch from excess insulin secretion to insulin deficiency. They will compare these inducible knockdown models with established type 2 diabetes models and measure electrical activity, calcium signals, and insulin release from beta cells. The work builds on genetic and animal evidence linking KATP defects to hyperinsulinism and neonatal diabetes, and uses new tools to probe timing and mechanisms of the crossover to secretory failure. The team aims to clarify why some patients progress from hyperinsulinism to long-term beta-cell decline and how treatments that open or close KATP channels might be used more safely.
Who could benefit from this research
Good fit: People with congenital hyperinsulinism, neonatal diabetes related to KATP mutations, or those with early hypersecretion that later fails would be most relevant to future related studies.
Not a fit: Patients whose diabetes arises from causes unrelated to beta-cell electrical signaling, or those needing immediate new therapies, are unlikely to receive direct benefit from this lab-focused project.
Why it matters
Potential benefit: If successful, this research could explain why some people with early hyperinsulinism later develop diabetes and help guide treatments that protect long-term insulin production.
How similar studies have performed: Previous genetic and animal research has shown that KATP channel defects cause abnormal insulin secretion and neonatal diabetes, but the specific progression from hyperinsulinism to later insulin failure is not well understood.
Where this research is happening
Saint Louis, United States
- Washington University — Saint Louis, United States (Active)
Researchers
- Principal investigator: Nichols, Colin G — Washington University
- Study coordinator: Nichols, Colin G
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.