Researchers uncover molecular switch to make effective sugar-responsive, insulin-releasing cells in a dish, offering hope for diabetes therapy
Salk scientists have solved a longstanding problem in the effort to create replacement cells for diabetic patients. The team uncovered a hidden energy switch that, when flipped, powers up pancreatic cells to respond to glucose, a step that eluded previous research. The result is the production of hundreds of millions of lab-produced human beta cells—able to relieve diabetes in mice.
For more than a decade, scientists across the globe strived to replace failing pancreatic beta cells linked to immune destruction in children (type 1 diabetes) or obesity-associated diabetes in adults (type 2 diabetes). Although cells made in a dish were able to produce insulin, they were sluggish or simply unable to respond to glucose.
“We found the missing energy switch needed to produce robust and functional human beta cells, potentially turning this discovery into a viable treatment for human diabetes,” says Ronald Evans, co-senior author and director of the Gene Expression Laboratory at Salk. The new work was published in Cell Metabolism on April 12, 2016.