Clozapine inhibits isolated N-methyl-D-aspartate receptors expressed in xenopus oocytes in a subunit specific manner.

Abstract:

:Antipsychotic agents have typically been viewed as acting through dopaminergic targets, although mounting evidence suggests that drugs such as clozapine may act on glutamatergic systems. In order to explore the effects of clozapine on the NMDA class of glutamate receptors, oocytes expressing the NMDA receptor NR1 subunit, coupled with different NR2 subunits, were exposed to clozapine and NMDA induced current was measured with two electrode voltage-clamp techniques. Our results indicate that clozapine inhibits the NMDA receptor, but that this inhibition is subunit specific, being significantly greater for receptors containing NR2A and NR2B than for those containing NR2C. Interestingly, the inhibition required pretreatment with clozapine before activation of the receptor with NMDA. In addition to providing mechanistic insights, this finding may help to explain divergent results in the literature regarding the effects of antipsychotic agents on glutamate receptors.

journal_name

Neurosci Lett

journal_title

Neuroscience letters

authors

Levine JB,Martin G,Wilson A,Treistman SN

doi

10.1016/s0304-3940(03)00523-8

keywords:

subject

Has Abstract

pub_date

2003-08-07 00:00:00

pages

125-8

issue

3

eissn

0304-3940

issn

1872-7972

pii

S0304394003005238

journal_volume

346

pub_type

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