Medical Research Council - London Institute of Medical Sciences

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Budding Development

Detailed understanding of pancreas development provides insight into tackling type I diabetes

16 January 2019

Budding Development

Responsible for producing both pancreatic juices for digestion and hormones regulating blood glucose levels, the pancreas develops from buds of the foregut into a complex multifunctional structure. Pancreatic progenitor cells become either the pancreatic ducts, transporting the pancreatic juices, or the hormone-producing endocrine system, including beta cells synthesising insulin. Guiding cells to either of these fates requires molecules from the Notch signalling pathway, along with a protein called YAP1. In this pancreatic bud, blocking YAP1 leads to more endocrine cells developing, so producing more hormones (in red). Yet pancreatic development is still more complicated, as YAP1 and Notch activity depends on contacts between the pancreatic cells and different proteins in the surrounding extracellular matrix. For researchers working on type I diabetes, an auto-immune disease targeting beta cells, understanding pancreatic development is especially relevant, ultimately helping to better generate endocrine cells in the laboratory, for future replacement therapies.

Written by Emmanuelle Briolat

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