Presynaptic Gq-coupled receptors drive biphasic dopamine transporter trafficking that modulates dopamine clearance and motor function.
Presynaptic Gq-coupled receptors drive biphasic dopamine transporter trafficking that modulates dopamine clearance and motor function.
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DOI:
10.1016/j.jbc.2023.102900
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发表时间:
2023-02
影响因子:
4.8
通讯作者:
Melikian, Haley E.
中科院分区:
文献类型:
--
作者:
Kearney, Patrick J.;Bolden, Nicholas C.;Kahuno, Elizabeth;Conklin, Tucker L.;Martin, Gilles E.;Lubec, Gert;Melikian, Haley E.
Extracellular dopamine (DA) levels are constrained by the presynaptic DA transporter (DAT), a major psychostimulant target. Despite its necessity for DA neurotransmission, DAT regulation in situ is poorly understood, and it is unknown whether regulated DAT trafficking impacts dopaminergic signaling and/or behaviors. Leveraging chemogenetics and conditional gene silencing, we found that activating presynaptic Gq-coupled receptors, either hM3Dq or mGlu5, drove rapid biphasic DAT membrane trafficking in ex vivo striatal slices, with region-specific differences between ventral and dorsal striata. DAT insertion required D2 DA autoreceptors and intact retromer, whereas DAT retrieval required PKC activation and Rit2. Ex vivo voltammetric studies revealed that DAT trafficking impacts DA clearance. Furthermore, dopaminergic mGlu5 silencing elevated DAT surface expression and abolished motor learning, which was rescued by inhibiting DAT with a subthreshold CE-158 dose. We discovered that presynaptic DAT trafficking is complex, multimodal, and region specific, and for the first time, we identified cell autonomous mechanisms that govern presynaptic DAT tone. Importantly, the findings are consistent with a role for regulated DAT trafficking in DA clearance and motor function.
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DOI:
10.1038/s41531-018-0063-3
发表时间:
2018
期刊:
NPJ Parkinson's disease
影响因子:
--
作者:
Cataldi S;Follett J;Fox JD;Tatarnikov I;Kadgien C;Gustavsson EK;Khinda J;Milnerwood AJ;Farrer MJ
通讯作者:
Farrer MJ
影响因子:
5.3
作者:
Gabriel, Luke R.;Wu, Sijia;Melikian, Haley E.
通讯作者:
Melikian, Haley E.
DOI:
10.1523/jneurosci.5094-09.2010
发表时间:
2010-04-28
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Bowton E;Saunders C;Erreger K;Sakrikar D;Matthies HJ;Sen N;Jessen T;Colbran RJ;Caron MG;Javitch JA;Blakely RD;Galli A
通讯作者:
Galli A
影响因子:
5.3
作者:
Bagalkot, Tarique R.;Block, Ethan R.;Sorkin, Alexander
通讯作者:
Sorkin, Alexander
影响因子:
5.3
作者:
Benoit-Marand, M;Borrelli, E;Gonon, F
通讯作者:
Gonon, F