Scientists in Sweden have taken a major step toward a potential treatment for type 1 diabetes by developing a more reliable method for producing insulin-producing cells from human stem cells. These lab-grown cells not only responded strongly to glucose, but also restored blood sugar control after being transplanted into diabetic mice.

Type 1 diabetes occurs when the immune system destroys the insulin-producing cells in the pancreas. Replacing these cells with stem-cell-derived cells has long been considered promising, but previous methods produced inconsistent results.

The new approach creates natural three-dimensional clusters and improves the cell culture process, resulting in more mature and functional cells that respond effectively to glucose. After transplantation into mice, the cells gradually regulated blood sugar levels over time.

This breakthrough could help overcome previous challenges in stem-cell-based therapies for type 1 diabetes and move the field closer to personalized treatments for patients.

https://www.sciencedaily.com/releases/2026/05/260505234620.htm