Scientists Create Insulin-Producing Cells from Stem Cells in Lab

Researchers have developed a reliable method to grow pancreatic islet-like clusters from human pluripotent stem cells in 40 days. This advance could eventually provide an unlimited source of insulin-producing cells for transplantation studies.

PubMed indexed literature

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Key takeaways

A new 40-day protocol successfully generates islet-like clusters from stem cells that respond to glucose and produce insulin
The method uses a stepwise approach that mimics how the pancreas naturally develops, moving from flat cultures to 3D clusters
These lab-grown islets contain the key cell types and structures found in natural pancreatic islets, though some maturity features remain challenging to achieve in the lab
This platform could accelerate research into cell replacement therapies and help scientists better understand Type 1 diabetes
While promising for future treatments, this work is still in the research and testing phase

The Challenge: Islet Shortage

People with Type 1 diabetes currently depend on insulin injections to survive. While donated human pancreatic islets—tissue containing insulin-secreting beta cells—have shown promise as a longer-term solution, there simply aren't enough donors. This shortage has motivated scientists to find other sources of these critical cells.

A New Method for Growing Islets

Researchers have created a step-by-step process that grows pancreatic islet-like clusters from human pluripotent stem cells over 40 days. The method is divided into seven stages and mimics the natural way the pancreas develops in the body. The first four stages use flat, two-dimensional cultures, while the final three stages use three-dimensional microwells to form clusters that resemble real islets.

What These Lab-Grown Islets Can Do

The islet-like clusters produced by this protocol show several promising features. They respond to glucose challenges—meaning they react appropriately when blood sugar levels change. They express the right endocrine markers and contain insulin inside their cells. The clusters also develop an architecture similar to natural islets.

However, the cells do not yet fully develop all the mature features seen in transplanted human islets, a challenge researchers continue to work on.

What This Means for Research

This scalable method provides scientists with a platform for two important areas: studying Type 1 diabetes in the lab and testing cell replacement therapies. By reliably producing islet-like clusters, researchers can better understand how the disease develops and explore whether these cells could eventually help people regain insulin independence. This is early-stage research, and much more work is needed before any therapy reaches patients.

Evidence label

Source: Current protocols. Evidence type: PubMed indexed literature. Type1Cure is an information and intelligence hub, not a medical advice service. This article summarizes published research and does not provide diagnosis, treatment, or personal medical guidance. Always talk to your own care team before changing anything about your Type 1 diabetes management.

Type1Cure is an information and intelligence hub, not a medical advice service. This article summarizes published research and does not provide diagnosis, treatment, or personal medical guidance. Always talk to your own care team before changing anything about your Type 1 diabetes management.

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