Send to

Choose Destination
Future Neurol. 2010 Jan 1;5(1):123.

Dopamine transporter trafficking: rapid response on demand.

Author information

Department of Pharmacology, University of Michigan School of Medicine, Ann Arbor, MI 48109-5632, USA Tel.: +1 734 763 3083


The dopamine transporter (DAT) is a primary determinant of the concentration of dopamine in the synapse and is involved in a number of psychiatric and neurological diseases. The transporter actively takes up its physiological substrate, dopamine, when it is on the surface of the plasmalemmal membrane, but the concentration of DAT in the membrane is highly regulated by substrate. Substrates initially, and very rapidly, recruit more DAT into the membrane for greater function, but continued presence of substrate downregulates the activity of DAT and even membrane DAT content. This biphasic regulation is orchestrated by numerous signal transduction mechanisms, including a palette of protein kinases. Understanding the mechanisms of rapid regulation of DAT could provide new therapeutic strategies to improve transporter function and modulate responses to its more notorious substrates, amphetamine and methamphetamine.

Supplemental Content

Full text links

Icon for PubMed Central
Loading ...
Support Center