Cited by 90Schizophrenia research and treatmentRedox biology and oxidative stressGlutathione Transferases and Polymorphisms

Behavioral phenotyping of glutathione-deficient mice: Relevance to schizophrenia and bipolar disorder

Kulak, Anita, Cuenod, Michel, Do, Kim Q.·2012·Behavioural Brain Research

Abstract

Redox-dysregulation represents a common pathogenic mechanism in schizophrenia (SZ) and bipolar disorder (BP). It may in part arise from a genetically compromised synthesis of glutathione (GSH), the major cellular antioxidant and redox-regulator. Allelic variants of the genes coding for the rate-limiting GSH synthesizing enzyme glutamate-cysteine-ligase modifier (GCLM) and/or catalytic (GCLC) subunit have been associated with SZ and BP. Using mice knockout (KO) for GCLM we have previously shown that impaired GSH synthesis is associated with morphological, functional and neurochemical anomalies similar to those in patients. Here we asked whether GSH deficit is also associated with SZ- and BP-relevant behavioral and cognitive anomalies. Accordingly, we subjected young adult GCLM-wildtype (WT), heterozygous and KO males to a battery of standard tests. Compared to WT, GCLM-KO mice displayed hyperlocomotion in the open field and forced swim test but normal activity in the home cage, suggesting that hyperlocomotion was selective to environmental novelty and mildly stressful situations. While spatial working memory and latent inhibition remained unaffected, KO mice showed a potentiated hyperlocomotor response to an acute amphetamine injection, impaired sensorymotor gating in the form of prepulse inhibition and altered social behavior compared to WT. These anomalies resemble important aspects of both SZ and the manic component of BP. As such our data support the notion that redox-dysregulation due to GSH deficit is implicated in both disorders. Moreover, our data propose the GCLM-KO mouse as a valuable model to study the behavioral and cognitive consequences of redox dysregulation in the context of psychiatric disease.

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Crossref · 10.1016/j.bbr.2011.10.020

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  • Transient pharmacological depletion of brain GSH early in development (between postnatal days 5 and 16) leads to PVI abnormalities in the adult anterior cingulate cortex as well as cognitive and olfactory discrimination deficits.

    “Moreover, transient pharmacological depletion of brain GSH early in development (between postnatal days 5 and 16) leads to PVI abnormalities in the adult anterior cingulate cortex as well as cognitive and olfactory discrimination deficits 49 .”
  • Pharmacological depletion of brain GSH using a GCL inhibitor induces sensory and cognitive disturbances similar to schizophrenia.

    “Pharmacological depletion of brain GSH using a GCL inhibitor induces similar sensory and cognitive disturbances 48,49 .”

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Authors
Kulak, A., Cuenod, M., & Do, K. Q.
Affiliations
Centre Hospitalier Universitaire Vaudois (CH)
Corresponding author
Kulak, Anita
Venue
Behavioural Brain Research
Publisher
Elsevier BV
Published
2012-01
Volume
226
Issue
2
Pages
563-570
ISSN
0166-4328 (ISSN-L)
OpenAlex
W1979121076
Cited by
90
References
92
Citations by year
2026: 1 · 2025: 1 · 2024: 6 · 2023: 7 · 2022: 5 · 2021: 6 · 2020: 6 · 2019: 10 · 2018: 4 · 2017: 4 · 2016: 9 · 2015: 10 · 2014: 8 · 2013: 8 · 2012: 5
FWCI
4.60
Type
journal article
Language
en
Open access
closed
Locations
  • Behavioural Brain Research (publishedVersion)
  • PubMed (publishedVersion)
  • IRIS (submittedVersion)
  • SERVAL (Université de Lausanne) (submittedVersion)
Funders
  • Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
  • Vedecká Grantová Agentúra MŠVVaŠ SR a SAV
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Glutathione Transferases and Polymorphisms
Keywords
glutathione deficiency, gamma-glutamylcysteine synthetase, redox dysregulation, schizophrenia, bipolar disorder, hyperlocomotion, prepulse inhibition, sensory gating, amphetamine response, social behavior, spatial working memory, latent inhibition, behavioral phenotyping
MeSH terms
Animals, Behavior, Animal, Bipolar Disorder, Disease Models, Animal, Glutamate-Cysteine Ligase, Glutathione, Humans, Male, Mice, Inbred C57BL, Phenotype, Schizophrenia, Schizophrenic Psychology, Mice, Knockout, Mice

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