Title : The anticonvulsants lamotrigine, riluzole, and valproate differentially regulate AMPA receptor membrane localization: relationship to clinical effects in mood disorders.

Pub. Date : 2007 Apr

PMID : 16936714






5 Functional Relationships(s)
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1 We found that the agents with a predominantly antidepressant profile, namely lamotrigine and riluzole, significantly enhanced the surface expression of GluR1 and GluR2 in a time- and dose-dependent manner in cultured hippocampal neurons. Lamotrigine glutamate ionotropic receptor AMPA type subunit 1 Homo sapiens
2 Concomitant with the GluR1 and GluR2 changes, the peak value of depolarized membrane potential evoked by AMPA was significantly higher in lamotrigine- and riluzole-treated neurons, supporting the surface receptor changes. Lamotrigine glutamate ionotropic receptor AMPA type subunit 1 Homo sapiens
3 Phosphorylation of GluR1 at the PKA (cAMP-dependent protein kinase) site (S845) was enhanced in both lamotrigine- and riluzole-treated hippocampal neurons, but reduced in valproate-treated neurons. Lamotrigine glutamate ionotropic receptor AMPA type subunit 1 Homo sapiens
4 In addition, lamotrigine and riluzole, as well as the traditional antidepressant imipramine, also increased GluR1 phosphorylation at GluR1 (S845) in the hippocampus after chronic in vivo treatment. Lamotrigine glutamate ionotropic receptor AMPA type subunit 1 Homo sapiens
5 In addition, lamotrigine and riluzole, as well as the traditional antidepressant imipramine, also increased GluR1 phosphorylation at GluR1 (S845) in the hippocampus after chronic in vivo treatment. Lamotrigine glutamate ionotropic receptor AMPA type subunit 1 Homo sapiens