Abstract
In the central nervous system, glutamate is essential for a proper synaptic communication in neuronal networks supporting critical behavioral activities such as learning and memory. Dysfunction of glutamatergic excitatory neurotransmission has been implicated in numerous neurological and pyschiatric disorders and a growing body of research suggests that potentiation of NMDA receptor function may represent a novel approach for the treatment of schizophrenia. An actively pursued strategy to potentiate NMDA receptor function is to increase synaptic levels of the neurotransmitter glycine by blocking the glycine transporter type 1 (GlyT1). Since glycine acts as a co-agonist at the NMDA receptor, this approach could enhance the effectiveness of normal NMDA receptor-mediated glutamatergic neurotransmission. Recent research on the physiology of this uptake system as well as on the development and preclinical testing of novel GlyT1 inhibitors have greatly enhanced our knowledge of the role of this transporter in the modulation of NMDA receptor activity and suggested that this approach may be feasible. Clinical studies with novel glycine reuptake inhibitors will provide critical information regarding the validity of this therapeutic concept for the treatment of schizophrenia and other disorders associated with NMDA receptor hypofunction.
Keywords: GlyT1 gene, 12 transmembrane domains, dentate gyrus, prepulse inhibition, GlyT1 inhibitors
Current Drug Targets
Title: Glycine Transporter 1 Inhibitors and Modulation of NMDA Receptor-Mediated Excitatory Neurotransmission
Volume: 8 Issue: 5
Author(s): Cyrille Sur and Gene G. Kinney
Affiliation:
Keywords: GlyT1 gene, 12 transmembrane domains, dentate gyrus, prepulse inhibition, GlyT1 inhibitors
Abstract: In the central nervous system, glutamate is essential for a proper synaptic communication in neuronal networks supporting critical behavioral activities such as learning and memory. Dysfunction of glutamatergic excitatory neurotransmission has been implicated in numerous neurological and pyschiatric disorders and a growing body of research suggests that potentiation of NMDA receptor function may represent a novel approach for the treatment of schizophrenia. An actively pursued strategy to potentiate NMDA receptor function is to increase synaptic levels of the neurotransmitter glycine by blocking the glycine transporter type 1 (GlyT1). Since glycine acts as a co-agonist at the NMDA receptor, this approach could enhance the effectiveness of normal NMDA receptor-mediated glutamatergic neurotransmission. Recent research on the physiology of this uptake system as well as on the development and preclinical testing of novel GlyT1 inhibitors have greatly enhanced our knowledge of the role of this transporter in the modulation of NMDA receptor activity and suggested that this approach may be feasible. Clinical studies with novel glycine reuptake inhibitors will provide critical information regarding the validity of this therapeutic concept for the treatment of schizophrenia and other disorders associated with NMDA receptor hypofunction.
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Cite this article as:
Sur Cyrille and Kinney G. Gene, Glycine Transporter 1 Inhibitors and Modulation of NMDA Receptor-Mediated Excitatory Neurotransmission, Current Drug Targets 2007; 8 (5) . https://dx.doi.org/10.2174/138945007780618535
DOI https://dx.doi.org/10.2174/138945007780618535 |
Print ISSN 1389-4501 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-5592 |
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