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- W1525421750 abstract "Dopamine (DA) homeostasis is essential for a variety of brain activities. Dopamine transporter (DAT)-mediated DA reuptake is one of the most critical mechanisms for normal DA homeostasis. However, the molecular mechanisms underlying the regulation of DAT activity in the brain remain poorly understood. Here we show that the Rho-family guanine nucleotide exchange factor protein Vav2 is required for DAT cell surface expression and transporter activity modulated by glial cell line-derived neurotrophic factor (GDNF) and its cognate receptor Ret. Mice deficient in either Vav2 or Ret displayed elevated DAT activity, which was accompanied by an increase in intracellular DA selectively in the nucleus accumbens. Vav2(-/-) mice exposed to cocaine showed reduced DAT activity and diminished behavioral cocaine response. Our data demonstrate that Vav2 is a determinant of DAT trafficking in vivo and contributes to the maintenance of DA homeostasis in limbic DA neuron terminals." @default.
- W1525421750 created "2016-06-24" @default.
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- W1525421750 date "2015-07-06" @default.
- W1525421750 modified "2023-10-01" @default.
- W1525421750 title "Identification of a Vav2-dependent mechanism for GDNF/Ret control of mesolimbic DAT trafficking" @default.
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- W1525421750 doi "https://doi.org/10.1038/nn.4060" @default.
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