G‑proteins' role in insulin‑producing beta cell health in type 2 diabetes
Official title: G protein mediated mechanisms of beta-cell compensation and failure in type 2 diabetes
Funded at Wm S. Middleton Memorial Veterans Hosp · NIH-11212804 · Data updated 2026-11-12
This project looks at how a signaling protein called Gαz affects insulin-producing beta cells in people with type 2 diabetes to find ways to keep those cells working longer.
Quick facts
| Grant type | NIH-funded research |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Wm S. Middleton Memorial Veterans Hosp NIH-funded |
| Lab location | 1 site (Madison, United States) |
| Project start | October 1, 2022 |
| Project end | September 30, 2026 |
| Funding year | 2026 |
| NIH project number | 5I01BX005804-04 |
| Project ID | NIH-11212804 on NIH RePORTER |
Who could benefit from this research
✓Could help
Adults with type 2 diabetes, especially those early in the disease or showing signs of declining insulin production, would be the most likely candidates for treatments developed from this work.
✕Less likely to help
People with long-standing type 1 diabetes who have lost most beta cells or those whose diabetes is driven mainly by insulin resistance may not benefit directly from beta-cell–focused therapies.
What this research studies
Researchers will study a signaling protein called Gαz in pancreatic beta cells using lab experiments and animal models to learn why beta cells compensate or fail in type 2 diabetes. They will measure insulin release, cell growth, survival, and the molecular signaling pathways that change when Gαz is altered. The team will test whether blocking harmful Gαz signals preserves beta-cell mass or improves function in preclinical models. Results are intended to point to targets for new drugs or therapies to protect insulin-producing cells in people with diabetes.
Why it matters
Potential benefit: Could point to new treatments that protect or restore insulin-producing beta cells and improve blood sugar control in people with type 2 diabetes.
How similar studies have gone: Previous animal and cell studies have suggested G‑proteins influence beta-cell function, but translating these findings into human treatments is still early and largely untested.
Where this research is happening
-
Wm S. Middleton Memorial Veterans Hosp
Madison, United States Active
Researchers
- Principal investigator: Kimple, Michelle E — Wm S. Middleton Memorial Veterans Hosp
- Study coordinator: Kimple, Michelle E
Related research
Other NIH-funded projects on the same topics.
-
Subtyping Core for Research on the Causes of Type 2 Diabetes (SCORE-T2D)
A new U01 grant from a university research team aims to understand why Type 2 diabetes differs so much between people and how to tailor prevention and treatment.
-
Michigan Diabetes Project: A Peer-Led Self-Management Program for Adults with Type 2 Diabetes
A peer-led self-management program for adults with type 2 diabetes is being tested to see if it improves blood sugar control and daily diabetes care.
-
Alzheimer’s and dementia risk in people with prediabetes or type 2 diabetes
This grant aims to understand why some older adults with prediabetes or type 2 diabetes develop memory problems or dementia.
-
Personalized use of newer diabetes medicines for Type 2 diabetes
Aiming to tailor use of newer glucose-lowering drugs for people with type 2 diabetes to improve health and access in real-world settings.
-
Alzheimer’s and related dementia in older adults with prediabetes or type 2 diabetes
This grant aims to understand why cognitive problems occur in people 65 and older who have prediabetes or type 2 diabetes, using data from a long-running diabetes study to identify what drives memory and thinking decline.
-
Understanding why youth develop type 2 diabetes and how to prevent it
A nationwide study aims to unravel why some teens with obesity develop type 2 diabetes while others don’t, and to identify factors that could help prevent it.
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.