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Permissive epigenetic regulatory mechanisms at the histone level are enhanced in postmortem dorsolateral prefrontal cortex of individuals with schizophrenia
dc.contributor.author | Martínez Peula, Oihane | |
dc.contributor.author | Morentin Campillo, Benito | |
dc.contributor.author | Callado Hernando, Luis Felipe | |
dc.contributor.author | Meana Martínez, José Javier | |
dc.contributor.author | Rivero Calera, Guadalupe | |
dc.contributor.author | Ramos Miguel, Alfredo | |
dc.date.accessioned | 2024-04-19T15:29:08Z | |
dc.date.available | 2024-04-19T15:29:08Z | |
dc.date.issued | 2024-02 | |
dc.identifier.citation | Journal of Psychiatry and Neuroscience 49(1) : 35-44 (2024) | es_ES |
dc.identifier.issn | 1180-4882 | |
dc.identifier.issn | 1488-2434 | |
dc.identifier.uri | http://hdl.handle.net/10810/66812 | |
dc.description.abstract | Background: Susceptibility to schizophrenia is determined by interactions between genes and environment, possibly via epigenetic mechanisms. Schizophrenia has been associated with a restrictive epigenome, and histone deacetylase (HDAC) inhibitors have been postulated as coadjuvant agents to potentiate the efficacy of current antipsychotic drugs. We aimed to evaluate global histone posttranslational modifications (HPTMs) and HDAC expression and activity in the dorsolateral prefrontal cortex (DLPFC) of individuals with schizophrenia. Methods: We used postmortem DLPFC samples of individuals with schizophrenia and controls matched for sex, age, and postmortem interval. Schizophrenia samples were classified into antipsychotic-treated or antipsychotic-free subgroups according to blood toxicology. Expression of HPTMs and HDAC was quantified by Western blot. HDAC activity was measured with a fluorometric assay. Results: H3K9ac, H3K27ac, and H3K4me3 were globally enhanced in the DLPFC of individuals with schizophrenia (+24%–42%, p < 0.05). HDAC activity (−17%, p < 0.01) and HDAC4 protein expression (−20%, p < 0.05) were downregulated in individuals with schizophrenia. Analyses of antipsychotic-free and antipsychotic-treated subgroups revealed enhanced H3K4me3 and H3K27ac (+24%–49%, p < 0.05) and reduced HDAC activity in the antipsychotic-treated, but not in the antipsychotic-free subgroup. Limitations: Special care was taken to control the effect of confounding factors: age, sex, postmortem interval, and storage time. However, replication studies in bigger cohorts might strengthen the association between permissive HPTMs and schizophrenia. Conclusion: We found global HPTM alterations consistent with an aberrantly permissive epigenome in schizophrenia. Further studies to elucidate the significance of enhanced permissive HPTMs in schizophrenia and its association with the mechanism of action of antipsychotic drugs are encouraged. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Canadian College of Neuropsychopharmacology | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ | * |
dc.title | Permissive epigenetic regulatory mechanisms at the histone level are enhanced in postmortem dorsolateral prefrontal cortex of individuals with schizophrenia | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | This is an Open Access article distributed in accordance with the terms of the Creative Commons Attribution (CC BY-NC-ND 4.0) licence, which permits use, distribution and reproduction in any medium, provided that the original publication is properly cited, the use is noncommercial (i.e., research or educational use), and no modifications or adaptations are made. See: https://creativecommons.org/licenses/by-nc-nd/4.0/ | es_ES |
dc.rights.holder | Atribución-NoComercial-SinDerivadas 3.0 España | * |
dc.relation.publisherversion | https://www.jpn.ca/content/49/1/E35 | es_ES |
dc.identifier.doi | 10.1503/jpn.230054 | |
dc.departamentoes | Especialidades médico-quirúrgicas | es_ES |
dc.departamentoes | Farmacología | es_ES |
dc.departamentoeu | Farmakologia | es_ES |
dc.departamentoeu | Medikuntza eta kirurgia espezialitateak | es_ES |
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