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Pharmacological agents that directly modulate insulin secretion.

Máire E Doyle1, Josephine M Egan

  • 1Diabetes Section, National Institute on Aging, National Institutes of Health, Baltimore, Maryland 21224, USA.

Pharmacological Reviews
|March 5, 2003
PubMed
Summary

This review details how drugs modulate insulin secretion by targeting pancreatic beta-cells. It covers agents acting on K(ATP) channels, cell receptors, and other pathways influencing glucose control.

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Area of Science:

  • Endocrinology
  • Pharmacology
  • Cell Biology

Background:

  • Pancreatic beta-cells regulate blood glucose via insulin secretion.
  • Insulin release involves glucose sensing, membrane depolarization, and exocytosis.
  • Pharmacological modulation of these processes is key for diabetes management.

Purpose of the Study:

  • To review pharmacological agents that directly influence insulin secretion.
  • To categorize drugs based on their mechanisms of action on beta-cells.
  • To discuss drugs affecting insulin secretion at various molecular and cellular levels.

Main Methods:

  • Literature review of pharmacological agents impacting insulin secretion.
  • Categorization of drugs by their interaction sites (e.g., K(ATP) channels, receptors).

Related Experiment Videos

  • Analysis of drug effects on beta-cell function, from transcription to exocytosis.

    • Main Results:

    • Drugs modulate insulin secretion via K(ATP) channel activity (openers like sulfonylureas, closers like diazoxide).
    • Other agents target cell-surface receptors (methylxanthines) or second messengers.
    • Some drugs affect multiple pathways or disrupt beta-cell function.

    Conclusions:

    • Diverse pharmacological strategies exist to modulate insulin secretion.
    • Understanding drug mechanisms is crucial for optimizing glucose homeostasis.
    • Further research is needed for drugs with unclear mechanisms affecting beta-cells.