Issue 10, 2017

A multiscale study of the role of dynamin in the regulation of glucose uptake

Abstract

Glucose uptake in muscle cells in response to insulin is a fundamental mechanism for metabolism. The inability of cells to mobilize the specific glucose transporter GLUT4 is believed to be at least partially accountable for diseases, like diabetes, where cells do not respond to an insulin stimulus. In this work, a microchip is used to detect electrochemically glucose uptake from C2C12 myoblasts cultured on a patch of paper upon exposure to insulin. More importantly, the data suggest a new role for dynamin, a molecular motor which would be involved in GLUT4 translocation by facilitating exocytosis. It is also shown in vivo that dynamin is involved in the response to glucose in a completely distinct organism, namely the nematode Caenorhabditis elegans. The new mechanism for dynamin could therefore be more generally relevant in vivo and may play a role in insulin resistance.

Graphical abstract: A multiscale study of the role of dynamin in the regulation of glucose uptake

Supplementary files

Article information

Article type
Paper
Submitted
20 Jan 2017
Accepted
09 Aug 2017
First published
23 Aug 2017

Integr. Biol., 2017,9, 810-819

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