Impaired Metabolic Reactivity to Oxidative Stress in Early Psychosis Patients
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Because increasing evidence point to the convergence of environmental and genetic risk factors to drive redox dysregulation in schizophrenia, we aim to clarify whether the metabolic anomalies associated with early psychosis reflect an adaptation to oxidative stress. Metabolomic profiling was performed to characterize the response to oxidative stress in fibroblasts from control individuals (n = 20) and early psychosis patients (n = 30), and in all, 282 metabolites were identified. In addition to the expected redox/antioxidant response, oxidative stress induced a decrease of lysolipid levels in fibroblasts from healthy controls that were largely muted in fibroblasts from patients. Most notably, fibroblasts from patients showed disrupted extracellular matrix- and arginine-related metabolism after oxidative stress, indicating impairments beyond the redox system. Plasma membrane and extracellular matrix, 2 regulators of neuronal activity and plasticity, appeared as particularly susceptible to oxidative stress and thus provide novel mechanistic insights for pathophysiological understanding of early stages of psychosis. Statistically, antipsychotic medication at the time of biopsy was not accounting for these anomalies in the metabolism of patients' fibroblasts, indicating that they might be intrinsic to the disease. Although these results are preliminary and should be confirmed in a larger group of patients, they nevertheless indicate that the metabolic signature of reactivity to oxidative stress may provide reliable early markers of psychosis. Developing protective measures aimed at normalizing the disrupted pathways should prevent the pathological consequences of environmental stressors.
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Metabolic signatures of reactivity to oxidative stress in cells derived from patients and controls can potentially be used as biomarkers for early psychosis.
“Metabolomic approach in cells derived from patients and controls highlights the possibility of using metabolic signatures of reactivity to oxidative stress as biomarkers for early psychosis (Fournier et al., 2014).”
From Redox dysregulation, neuroinflammation, and NMDA receptor hypofunction: A “central hub” in schizophrenia pathophysiology? (2016) · cites this paper as Fournier et al., 2014
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Cited by
Sorted by citations
Steullet, P., Cabungcal, J. H., Monin, A., Dwir, D., O'Donnell, P., Cuenod, M., & Do, K. Q. (2016) · Schizophrenia Research · doi:10.1016/j.schres.2014.06.021 · Cited by 262 · see citing works
Self-citation
- Authors
- Fournier, M., Ferrari, C., Baumann, P. S., Polari, A., Monin, A., Bellier-Teichmann, T., Wulff, J., Pappan, K. L., Cuenod, M., Conus, P., & Do, K. Q.
- Affiliations
- Centre Hospitalier Universitaire Vaudois (CH)
- Metabolon (United States) (US)
- ORCID
- Venue
- Schizophrenia Bulletin
- Publisher
- Oxford University Press (OUP)
- Published
- 2014-04-01
- Volume
- 40
- Issue
- 5
- Pages
- 973-983
- ISSN
- 0586-7614 (ISSN-L)
- 1745-1701
- PMC
- PMC4133680
- OpenAlex
- W2114109396
- Cited by
- 48
- References
- 12
- Citations by year
- 2026: 2 · 2025: 1 · 2024: 2 · 2023: 7 · 2021: 1 · 2020: 3 · 2019: 1 · 2018: 2 · 2017: 6 · 2016: 8 · 2015: 10 · 2014: 5
- FWCI
- 7.38
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Schizophrenia Bulletin (publishedVersion)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- IRIS (submittedVersion)
- SERVAL (Université de Lausanne) (submittedVersion)
- Funders
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (125759, 122419, 320030)
- Topics
- Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolomics and Mass Spectrometry Studies
- Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
- Keywords
- early psychosis, oxidative stress
- MeSH terms
- Adaptation, Physiological, Adult, Cell Membrane, Extracellular Matrix, Female, Fibroblasts, Humans, Male, Psychotic Disorders, Oxidative Stress, Genetic Predisposition to Disease, Metabolomics, Young Adult
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