Cited by 113Schizophrenia research and treatmentNeurogenesis and neuroplasticity mechanismsRedox biology and oxidative stress

Glutathione deficit impairs myelin maturation: relevance for white matter integrity in schizophrenia patients

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Monin, A, Baumann, P S, Griffa, A, Xin, L, Mekle, R, Fournier, M, Butticaz, C, Klaey, M +9 more·2015·Molecular Psychiatry

Abstract

Schizophrenia pathophysiology implies both abnormal redox control and dysconnectivity of the prefrontal cortex, partly related to oligodendrocyte and myelin impairments. As oligodendrocytes are highly vulnerable to altered redox state, we investigated the interplay between glutathione and myelin. In control subjects, multimodal brain imaging revealed a positive association between medial prefrontal glutathione levels and both white matter integrity and resting-state functional connectivity along the cingulum bundle. In early psychosis patients, only white matter integrity was correlated with glutathione levels. On the other side, in the prefrontal cortex of peripubertal mice with genetically impaired glutathione synthesis, mature oligodendrocyte numbers, as well as myelin markers, were decreased. At the molecular levels, under glutathione-deficit conditions induced by short hairpin RNA targeting the key glutathione synthesis enzyme, oligodendrocyte progenitors showed a decreased proliferation mediated by an upregulation of Fyn kinase activity, reversed by either the antioxidant N-acetylcysteine or Fyn kinase inhibitors. In addition, oligodendrocyte maturation was impaired. Interestingly, the regulation of Fyn mRNA and protein expression was also impaired in fibroblasts of patients deficient in glutathione synthesis. Thus, glutathione and redox regulation have a critical role in myelination processes and white matter maturation in the prefrontal cortex of rodent and human, a mechanism potentially disrupted in schizophrenia.

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Crossref · 10.1038/mp.2014.88

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  • Redox regulation is particularly strong for GRIN2A-containing NMDARs, where a region of the N-terminus is sufficient to mediate the potentiation of currents by reducing agents such as dithiothreitol or GSH.

    “Redox regulation is particularly strong for GRIN2A-containing NMDARs, where a region of the N-terminus is sufficient to mediate the potentiation of currents by reducing agents such as Dithiothreitol or GSH 68,69 .”
  • The NMDAR is regulated by redox state: GRIN1 and GRIN2A possess pairs of redox-sensitive cysteine residues whose disulfide bond formation decreases NMDAR currents, while an overlapping group of cysteine residues are subject to inhibitory S-nitrosylation which facilitates disulfide bond formation.

    “The NMDAR is regulated by redox state: both GRIN1 and GRIN2A possess pairs of redox-sensitive cysteine residues whose disulfide bond formation decreases NMDAR currents 67,68 , while an overlapping group of cysteine residues are subject to inhibitory Snitrosylation which facilitates disulfide bond formation 67 .”

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Research works printed but not linked: 3

  1. Meister A, Anderson ME. Glutathione. Annu Rev Biochem 1983; 52: 711-760.
  2. Baumann PS, Crespi S, Marion-Veyron R, Solida A, Thonney J, Favrod J, et al. Treatment and early intervention in psychosis program (TIPP-Lausanne): imple- mentation of an early intervention programme for psychosis in Switzerland. Early Interv Psychiatry 2013; 7: 322-328.
  3. Xin L, Mekle R, Ferrari C, Baumann PS, Alameda L, Moser H, et al. Genetic association with prefrontal glutathione deficit: a preliminary 3T1H MRS Study in Early Psychosis. Proceedings of the International Society of Magnetic Resonance in Medicine Annual Meeting and Exhibition, 10-16 May; Milan, Italy, 2014.

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Authors
Monin, A., Baumann, P. S., Griffa, A., Xin, L., Mekle, R., Fournier, M., Butticaz, C., Klaey, M., Cabungcal, J. H., Steullet, P., Ferrari, C., Cuenod, M., Gruetter, R., Thiran, J. P., Hagmann, P., Conus, P., & Do, K. Q.
Affiliations
  • Centre Hospitalier Universitaire Vaudois (CH)
  • École Polytechnique Fédérale de Lausanne (CH)
Corresponding author
Do, K Q
Venue
Molecular Psychiatry
Published
2014-08-26
Volume
20
Issue
7
Pages
827-838
ISSN
  • 1359-4184 (ISSN-L)
  • 1476-5578
OpenAlex
W1973349067
Cited by
113
References
75
Citations by year
2026: 5 · 2025: 5 · 2024: 4 · 2023: 7 · 2022: 9 · 2021: 13 · 2020: 4 · 2019: 19 · 2018: 13 · 2017: 9 · 2016: 10 · 2015: 15
FWCI
8.65
Type
journal article
Language
en
Open access
Locations
  • Molecular Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • SERVAL (Université de Lausanne) (acceptedVersion, other-oa)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion, cc-by-nc-nd)
  • IRIS (submittedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion)
Funders
  • National Science Foundation
  • Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (125759, 310030_135736/1, 320,030_122,419, 130090, 320030)
  • Fondation Leenaards
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
Keywords
glutathione, myelin maturation, white matter integrity, schizophrenia, oligodendrocyte maturation, Fyn, redox regulation, cingulum, resting-state functional connectivity, early psychosis, N-acetylcysteine, prefrontal cortex, myelination
MeSH terms
Adult, Animals, Brain, Cells, Cultured, Female, Fibroblasts, Glutamate-Cysteine Ligase, Glutathione, Humans, Male, Myelin Sheath, Oligodendroglia, Schizophrenia, Rats, Wistar, Mice, Knockout, Proto-Oncogene Proteins c-fyn, Young Adult, White Matter

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