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Updated: May 22, 2026

Measuring Relative Insulin Secretion using a Co-Secreted Luciferase Surrogate
Published on: June 25, 2019
Cell signalling in insulin secretion: the molecular targets of ATP, cAMP and sulfonylurea
1Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, 650-0017, Japan. seino@med.kobe-u.ac.jp
Abstract:
Clarification of the molecular mechanisms of insulin secretion is crucial for understanding the pathogenesis and pathophysiology of diabetes and for development of novel therapeutic strategies for the disease. Insulin secretion is regulated by various intracellular signals generated by nutrients and hormonal and neural inputs. In addition, a variety of glucose-lowering drugs including sulfonylureas, glinide-derivatives, and incretin-related drugs such as dipeptidyl peptidase IV (DPP-4) inhibitors and glucagon-like peptide 1 (GLP-1) receptor agonists are used for glycaemic control by targeting beta cell signalling for improved insulin secretion. There has been a remarkable increase in our understanding of the basis of beta cell signalling over the past two decades following the application of molecular biology, gene technology, electrophysiology and bioimaging to beta cell research. This review discusses cell signalling in insulin secretion, focusing on the molecular targets of ATP, cAMP and sulfonylurea, an essential metabolic signal in glucose-induced insulin secretion (GIIS), a critical signal in the potentiation of GIIS, and the commonly used glucose-lowering drug, respectively.
Insights
Understanding molecular mechanisms of insulin secretion is key for diabetes treatment. This review details cell signaling pathways, focusing on ATP, cAMP, and sulfonylurea targets for improved glucose control.
Area of Science:
- Endocrinology
- Molecular Biology
- Diabetes Research
Background:
- Insulin secretion is vital for glucose homeostasis and understanding diabetes pathogenesis.
- Nutrient, hormonal, and neural signals regulate insulin secretion via intracellular pathways.
- Current diabetes therapies target beta cell signaling to enhance insulin release.
Purpose of the Study:
- To review molecular mechanisms of insulin secretion.
- To focus on key signaling molecules and drug targets.
- To elucidate pathways involved in glucose-induced insulin secretion (GIIS).
Main Methods:
- Literature review of molecular biology, gene technology, and electrophysiology studies.
- Analysis of cell signaling pathways in beta cells.
- Focus on molecular targets like ATP, cAMP, and sulfonylurea.
Main Results:
- ATP and cAMP are essential intracellular signals in glucose-induced insulin secretion.
- Sulfonylurea acts as a critical signaling molecule and a glucose-lowering drug.
- Advances in research technologies have significantly improved understanding of beta cell signaling.
Conclusions:
- Clarifying insulin secretion mechanisms is crucial for novel diabetes therapies.
- Targeting specific molecular signals like ATP, cAMP, and sulfonylurea can improve glycemic control.
- Continued research into beta cell signaling pathways holds promise for diabetes management.
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