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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2021
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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) |
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anti‐NMDA receptor encephalopathy biased allosteric modulator (BAM) NMDA receptor schizophrenia Therapeutics. Pharmacology RM1-950 |
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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 |
work_keys_str_mv |
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