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Diabetes is the result of dysregulation of both insulin and glucagon. Still, insulin has attracted much more attention than glucagon. Glucagon is released from alpha cells in the islets of Langerhans in response to low glucose and certain amino acids. Drugs with the primary aim of targeting glucagon signalling are scarce. However, glucagon is often administered to counteract severe hypoglycaemia, and commonly used diabetes medications such as GLP-1 analogues, sulfonylureas and SGLT2-inhibitors also affect alpha cells. Indeed, there are physiological and developmental similarities between the alpha cell and the insulin-secreting beta cell and new data confirm that alpha cells can be converted into insulin-secreting cells. These aspects and attributes, the need to find novel therapies targeting the alpha cell and more are considered in this review. Copyright © 2022 The Author(s). Published by Elsevier Ltd.. All rights reserved.

Citation

Anna Wendt, Lena Eliasson. Pancreatic alpha cells and glucagon secretion: Novel functions and targets in glucose homeostasis. Current opinion in pharmacology. 2022 Apr;63:102199

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PMID: 35245797

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