Metabotropic Glutamate Receptor Subtype 5 in Alcohol-Induced Negative Affect

Allosteric modulators of metabotropic glutamate 5 receptors (mGlu<sub>5</sub> receptors) have been identified as a promising treatment to independently alleviate both negative affective states and ethanol-seeking and intake. However, these conditions are often comorbid and might precipit...

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Main Authors: Chelsea R. Kasten, Eleanor B. Holmgren, Tiffany A. Wills
Format: Article
Language:English
Published: MDPI AG 2019-07-01
Series:Brain Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3425/9/8/183
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author Chelsea R. Kasten
Eleanor B. Holmgren
Tiffany A. Wills
author_facet Chelsea R. Kasten
Eleanor B. Holmgren
Tiffany A. Wills
author_sort Chelsea R. Kasten
collection DOAJ
description Allosteric modulators of metabotropic glutamate 5 receptors (mGlu<sub>5</sub> receptors) have been identified as a promising treatment to independently alleviate both negative affective states and ethanol-seeking and intake. However, these conditions are often comorbid and might precipitate one another. Acute and protracted ethanol withdrawal can lead to negative affective states. In turn, these states are primary drivers of alcohol relapse, particularly among women. The current review synthesizes preclinical studies that have observed the role of mGlu<sub>5</sub> receptor modulation in negative affective states following ethanol exposure. The primary behavioral assays discussed are ethanol-seeking and intake, development and extinction of ethanol-associated cues and contexts, behavioral despair, and anxiety-like activity. The work done to-date supports mGlu<sub>5</sub> receptor modulation as a promising target for mediating negative affective states to reduce ethanol intake or prevent relapse. Limitations in interpreting these data include the lack of models that use alcohol-dependent animals, limited use of adolescent and female subjects, and a lack of comprehensive evaluations of negative affective-like behavior.
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spelling doaj.art-e628beb0a10b4a818d5cd3ef19cddc072022-12-22T02:25:41ZengMDPI AGBrain Sciences2076-34252019-07-019818310.3390/brainsci9080183brainsci9080183Metabotropic Glutamate Receptor Subtype 5 in Alcohol-Induced Negative AffectChelsea R. Kasten0Eleanor B. Holmgren1Tiffany A. Wills2LSU Health Sciences Center—New Orleans, Department of Cell Biology and Anatomy, Medical Education Building, 1901 Perdido Street, Room 6103, New Orleans, LA 70112, USALSU Health Sciences Center—New Orleans, Department of Cell Biology and Anatomy, Medical Education Building, 1901 Perdido Street, Room 6103, New Orleans, LA 70112, USALSU Health Sciences Center—New Orleans, Department of Cell Biology and Anatomy, Medical Education Building, 1901 Perdido Street, Room 6103, New Orleans, LA 70112, USAAllosteric modulators of metabotropic glutamate 5 receptors (mGlu<sub>5</sub> receptors) have been identified as a promising treatment to independently alleviate both negative affective states and ethanol-seeking and intake. However, these conditions are often comorbid and might precipitate one another. Acute and protracted ethanol withdrawal can lead to negative affective states. In turn, these states are primary drivers of alcohol relapse, particularly among women. The current review synthesizes preclinical studies that have observed the role of mGlu<sub>5</sub> receptor modulation in negative affective states following ethanol exposure. The primary behavioral assays discussed are ethanol-seeking and intake, development and extinction of ethanol-associated cues and contexts, behavioral despair, and anxiety-like activity. The work done to-date supports mGlu<sub>5</sub> receptor modulation as a promising target for mediating negative affective states to reduce ethanol intake or prevent relapse. Limitations in interpreting these data include the lack of models that use alcohol-dependent animals, limited use of adolescent and female subjects, and a lack of comprehensive evaluations of negative affective-like behavior.https://www.mdpi.com/2076-3425/9/8/183alcoholnegative affectdespairanxietymGlu5sex differencesethanol dependence
spellingShingle Chelsea R. Kasten
Eleanor B. Holmgren
Tiffany A. Wills
Metabotropic Glutamate Receptor Subtype 5 in Alcohol-Induced Negative Affect
Brain Sciences
alcohol
negative affect
despair
anxiety
mGlu5
sex differences
ethanol dependence
title Metabotropic Glutamate Receptor Subtype 5 in Alcohol-Induced Negative Affect
title_full Metabotropic Glutamate Receptor Subtype 5 in Alcohol-Induced Negative Affect
title_fullStr Metabotropic Glutamate Receptor Subtype 5 in Alcohol-Induced Negative Affect
title_full_unstemmed Metabotropic Glutamate Receptor Subtype 5 in Alcohol-Induced Negative Affect
title_short Metabotropic Glutamate Receptor Subtype 5 in Alcohol-Induced Negative Affect
title_sort metabotropic glutamate receptor subtype 5 in alcohol induced negative affect
topic alcohol
negative affect
despair
anxiety
mGlu5
sex differences
ethanol dependence
url https://www.mdpi.com/2076-3425/9/8/183
work_keys_str_mv AT chelsearkasten metabotropicglutamatereceptorsubtype5inalcoholinducednegativeaffect
AT eleanorbholmgren metabotropicglutamatereceptorsubtype5inalcoholinducednegativeaffect
AT tiffanyawills metabotropicglutamatereceptorsubtype5inalcoholinducednegativeaffect