First Author | Sora I | Year | 1998 |
Journal | Proc Natl Acad Sci U S A | Volume | 95 |
Issue | 13 | Pages | 7699-704 |
PubMed ID | 9636213 | Mgi Jnum | J:48275 |
Mgi Id | MGI:1267125 | Doi | 10.1073/pnas.95.13.7699 |
Citation | Sora I, et al. (1998) Cocaine reward models: conditioned place preference can be established in dopamine- and in serotonin-transporter knockout mice. Proc Natl Acad Sci U S A 95(13):7699-704 |
abstractText | Cocaine and methylphenidate block uptake by neuronal plasma membrane transporters for dopamine, serotonin, and norepinephrine. Cocaine also blocks voltage-gated sodium channels, a property not shared by methylphenidate. Several lines of evidence have suggested that cocaine blockade of the dopamine transporter (DAT), perhaps with additional contributions from serotonin transporter (5-HTT) recognition, was key to its rewarding actions. We now report that knockout mice without DAT and mice without 5-HTT establish cocaine-conditioned place preferences. Each strain displays cocaine-conditioned place preference in this major mouse model for assessing drug reward, while methylphenidate-conditioned place preference is also maintained in DAT knockout mice. These results have substantial implications for understanding cocaine actions and for strategies to produce anticocaine medications. |