A glutamate concentration‐biased allosteric modulator potentiates NMDA‐induced ion influx in neurons

Abstract Precisely controlled synaptic glutamate concentration is essential for the normal function of the N‐methyl D‐aspartate (NMDA) receptors. Atypical fluctuations in synaptic glutamate homeostasis lead to aberrant NMDA receptor activity that results in the pathogenesis of neurological and psych...

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Autores principales: Blaise M. Costa, Lina Cortés Kwapisz, Brittney Mehrkens, Douglas N. Bledsoe, Bryanna N. Vacca, Tullia V. Johnston, Rehan Razzaq, Dhanasekaran Manickam, Bradley G. Klein
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Publicado: Wiley 2021
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Acceso en línea:https://doaj.org/article/af4e8464cbf4484c997b749172315022
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spelling oai:doaj.org-article:af4e8464cbf4484c997b7491723150222021-11-16T13:45:55ZA glutamate concentration‐biased allosteric modulator potentiates NMDA‐induced ion influx in neurons2052-170710.1002/prp2.859https://doaj.org/article/af4e8464cbf4484c997b7491723150222021-10-01T00:00:00Zhttps://doi.org/10.1002/prp2.859https://doaj.org/toc/2052-1707Abstract Precisely controlled synaptic glutamate concentration is essential for the normal function of the N‐methyl D‐aspartate (NMDA) receptors. Atypical fluctuations in synaptic glutamate homeostasis lead to aberrant NMDA receptor activity that results in the pathogenesis of neurological and psychiatric disorders. Therefore, glutamate concentration‐dependent NMDA receptor modulators would be clinically useful agents with fewer on‐target adverse effects. In the present study, we have characterized a novel compound (CNS4) that potentiates NMDA receptor currents based on glutamate concentration. This compound alters glutamate potency and exhibits no voltage‐dependent effect. Patch‐clamp electrophysiology recordings confirmed agonist concentration‐dependent changes in maximum inducible currents. Dynamic Ca2+ and Na+ imaging assays using rat brain cortical, striatal and cerebellar neurons revealed CNS4 potentiated ion influx through native NMDA receptor activity. Overall, CNS4 is novel in chemical structure, mechanism of action and agonist concentration‐biased allosteric modulatory effect. This compound or its future analogs will serve as useful candidates to develop drug‐like compounds for the treatment of treatment‐resistant schizophrenia and major depression disorders associated with hypoglutamatergic neurotransmission.Blaise M. CostaLina Cortés KwapiszBrittney MehrkensDouglas N. BledsoeBryanna N. VaccaTullia V. JohnstonRehan RazzaqDhanasekaran ManickamBradley G. KleinWileyarticleanti‐NMDA receptor encephalopathybiased allosteric modulator (BAM)NMDA receptorschizophreniaTherapeutics. PharmacologyRM1-950ENPharmacology Research & Perspectives, Vol 9, Iss 5, Pp n/a-n/a (2021)
institution DOAJ
collection DOAJ
language EN
topic anti‐NMDA receptor encephalopathy
biased allosteric modulator (BAM)
NMDA receptor
schizophrenia
Therapeutics. Pharmacology
RM1-950
spellingShingle anti‐NMDA receptor encephalopathy
biased allosteric modulator (BAM)
NMDA receptor
schizophrenia
Therapeutics. Pharmacology
RM1-950
Blaise M. Costa
Lina Cortés Kwapisz
Brittney Mehrkens
Douglas N. Bledsoe
Bryanna N. Vacca
Tullia V. Johnston
Rehan Razzaq
Dhanasekaran Manickam
Bradley G. Klein
A glutamate concentration‐biased allosteric modulator potentiates NMDA‐induced ion influx in neurons
description Abstract Precisely controlled synaptic glutamate concentration is essential for the normal function of the N‐methyl D‐aspartate (NMDA) receptors. Atypical fluctuations in synaptic glutamate homeostasis lead to aberrant NMDA receptor activity that results in the pathogenesis of neurological and psychiatric disorders. Therefore, glutamate concentration‐dependent NMDA receptor modulators would be clinically useful agents with fewer on‐target adverse effects. In the present study, we have characterized a novel compound (CNS4) that potentiates NMDA receptor currents based on glutamate concentration. This compound alters glutamate potency and exhibits no voltage‐dependent effect. Patch‐clamp electrophysiology recordings confirmed agonist concentration‐dependent changes in maximum inducible currents. Dynamic Ca2+ and Na+ imaging assays using rat brain cortical, striatal and cerebellar neurons revealed CNS4 potentiated ion influx through native NMDA receptor activity. Overall, CNS4 is novel in chemical structure, mechanism of action and agonist concentration‐biased allosteric modulatory effect. This compound or its future analogs will serve as useful candidates to develop drug‐like compounds for the treatment of treatment‐resistant schizophrenia and major depression disorders associated with hypoglutamatergic neurotransmission.
format article
author Blaise M. Costa
Lina Cortés Kwapisz
Brittney Mehrkens
Douglas N. Bledsoe
Bryanna N. Vacca
Tullia V. Johnston
Rehan Razzaq
Dhanasekaran Manickam
Bradley G. Klein
author_facet Blaise M. Costa
Lina Cortés Kwapisz
Brittney Mehrkens
Douglas N. Bledsoe
Bryanna N. Vacca
Tullia V. Johnston
Rehan Razzaq
Dhanasekaran Manickam
Bradley G. Klein
author_sort Blaise M. Costa
title A glutamate concentration‐biased allosteric modulator potentiates NMDA‐induced ion influx in neurons
title_short A glutamate concentration‐biased allosteric modulator potentiates NMDA‐induced ion influx in neurons
title_full A glutamate concentration‐biased allosteric modulator potentiates NMDA‐induced ion influx in neurons
title_fullStr A glutamate concentration‐biased allosteric modulator potentiates NMDA‐induced ion influx in neurons
title_full_unstemmed A glutamate concentration‐biased allosteric modulator potentiates NMDA‐induced ion influx in neurons
title_sort glutamate concentration‐biased allosteric modulator potentiates nmda‐induced ion influx in neurons
publisher Wiley
publishDate 2021
url https://doaj.org/article/af4e8464cbf4484c997b749172315022
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