Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Subscribe

Sci. Signal., 9 October 2012
Vol. 5, Issue 245, p. ec264
[DOI: 10.1126/scisignal.2003665]

EDITORS' CHOICE

Neuroscience Regulating Opioid Responses

Peter R. Stern

Science, AAAS, Cambridge CB2 1LQ, UK

Different drugs of abuse are thought to hijack similar reward systems in the brain using common mechanisms. However, Koo et al. now observe that some of the neural mechanisms that regulate opiate reward can be both different and even opposite to those that regulate reward by stimulant drugs. Whereas knockdown of brain-derived neurotrophic factor (BDNF) in the ventral tegmental area in mice antagonized the response to cocaine, the same manipulation strengthened the potential of opiates to increase dopamine neuron excitability. Optogenetic stimulation of dopaminergic terminals in the nucleus accumbens could counteract the effects of BDNF on morphine reward blockade.

J. W. Koo, M. S. Mazei-Robison, D. Chaudhury, B. Juarez, Q. LaPlant, D. Ferguson, J. Feng, H. Sun, K. N. Scobie, D. Damez-Werno, M. Crumiller, Y. N. Ohnishi, Y. H. Ohnishi, E. Mouzon, D. M. Dietz, M. K. Lobo, R. L. Neve, S. J. Russo, M.-H. Han, E. J. Nestler, BDNF is a negative modulator of morphine action. Science 338, 124–128 (2012). [Abstract] [Full Text]

Citation: P. R. Stern, Regulating Opioid Responses. Sci. Signal. 5, ec264 (2012).



To Advertise     Find Products


Science Signaling. ISSN 1937-9145 (online), 1945-0877 (print). Pre-2008: Science's STKE. ISSN 1525-8882