Cookies on this website

We use cookies to ensure that we give you the best experience on our website. If you click 'Accept all cookies' we'll assume that you are happy to receive all cookies and you won't see this message again. If you click 'Reject all non-essential cookies' only necessary cookies providing core functionality such as security, network management, and accessibility will be enabled. Click 'Find out more' for information on how to change your cookie settings.

Impaired insulin secretion from pancreatic β-cells is a major factor in the pathogenesis of type 2 diabetes. The main regulator of insulin secretion is the plasma glucose concentration. Insulin secretion is modified by other nutrients, circulating hormones and the autonomic nervous system, as well as local paracrine and autocrine signals. Autocrine signalling involves diffusible molecules that bind to receptors on the same cell from which they have been released. The first transmitter to be implicated in the autocrine regulation of β-cell function was insulin itself. The importance of autocrine insulin signalling is underscored by the finding that mice lacking insulin receptors in β-cells are glucose intolerant. In addition to insulin, β-cells secrete a variety of additional substances, including peptides (e.g. amylin, chromogranin A and B and their cleavage products), neurotransmitters (ATP and γ-aminobutyric acid) and ions (e.g. zinc). Here we review the autocrine effects of substances secreted from β-cells, with a focus on acute effects in stimulus-secretion coupling, present some novel data and discuss the general significance of autocrine signals for the regulation of insulin secretion.

Original publication

DOI

10.1111/j.1463-1326.2012.01642.x

Type

Journal article

Journal

Diabetes Obes Metab

Publication Date

10/2012

Volume

14 Suppl 3

Pages

143 - 151

Keywords

Adenosine Triphosphate, Animals, Autocrine Communication, Diabetes Mellitus, Experimental, Diabetes Mellitus, Type 2, Humans, Insulin, Insulin Secretion, Insulin-Secreting Cells, Mice, Mice, Knockout, Neuropeptide Y, Rats, Receptor, Insulin, Signal Transduction, Zinc, gamma-Aminobutyric Acid