Epigenetic and Neuronal Activity Markers Suggest the Recruitment of the Prefrontal Cortex and Hippocampus in the Three-Hit Model of Depression in Male PACAP Heterozygous Mice.

Autor: Gaszner T; Department of Anatomy, Medical School, University of Pécs, H-7624 Pécs, Hungary.; Research Group for Mood Disorders, Centre for Neuroscience Medical School, University of Pécs, H-7624 Pécs, Hungary., Farkas J; Department of Anatomy, Medical School, University of Pécs, H-7624 Pécs, Hungary.; Research Group for Mood Disorders, Centre for Neuroscience Medical School, University of Pécs, H-7624 Pécs, Hungary., Kun D; Department of Anatomy, Medical School, University of Pécs, H-7624 Pécs, Hungary.; Research Group for Mood Disorders, Centre for Neuroscience Medical School, University of Pécs, H-7624 Pécs, Hungary., Ujvári B; Department of Anatomy, Medical School, University of Pécs, H-7624 Pécs, Hungary.; Research Group for Mood Disorders, Centre for Neuroscience Medical School, University of Pécs, H-7624 Pécs, Hungary., Füredi N; Department of Anatomy, Medical School, University of Pécs, H-7624 Pécs, Hungary.; Research Group for Mood Disorders, Centre for Neuroscience Medical School, University of Pécs, H-7624 Pécs, Hungary., Kovács LÁ; Department of Anatomy, Medical School, University of Pécs, H-7624 Pécs, Hungary.; Research Group for Mood Disorders, Centre for Neuroscience Medical School, University of Pécs, H-7624 Pécs, Hungary., Hashimoto H; Laboratory of Molecular Neuropharmacology, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita 565-0871, Osaka, Japan.; Molecular Research Center for Children's Mental Development, United Graduate School of Child Development, Osaka University, Kanazawa University, Hamamatsu University School of Medicine, Chiba University and University of Fukui, 2-2 Yamadaoka, Suita 565-0871, Osaka, Japan.; Division of Bioscience, Institute for Datability Science, Osaka University, 1-1 Yamadaoka, Suita 565-0871, Osaka, Japan.; Transdimensional Life Imaging Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, 2-1 Yamadaoka, Suita 565-0871, Osaka, Japan.; Department of Molecular Pharmaceutical Sciences, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita 565-0871, Osaka, Japan., Reglődi D; Department of Anatomy, Medical School, University of Pécs, H-7624 Pécs, Hungary.; ELKH-PTE PACAP Research Group Department of Anatomy, Medical School, University of Pécs, H-7624 Pécs, Hungary., Kormos V; Department of Pharmacology and Pharmacotherapy, University of Pécs, H-7624 Pécs, Hungary., Gaszner B; Department of Anatomy, Medical School, University of Pécs, H-7624 Pécs, Hungary.; Research Group for Mood Disorders, Centre for Neuroscience Medical School, University of Pécs, H-7624 Pécs, Hungary.
Jazyk: angličtina
Zdroj: International journal of molecular sciences [Int J Mol Sci] 2022 Oct 03; Vol. 23 (19). Date of Electronic Publication: 2022 Oct 03.
DOI: 10.3390/ijms231911739
Abstrakt: Depression and its increasing prevalence challenge patients, the healthcare system, and the economy. We recently created a mouse model based on the three-hit concept of depression. As genetic predisposition (first hit), we applied pituitary adenylate cyclase-activating polypeptide heterozygous mice on CD1 background. Maternal deprivation modeled the epigenetic factor (second hit), and the chronic variable mild stress was the environmental factor (third hit). Fluoxetine treatment was applied to test the predictive validity of our model. We aimed to examine the dynamics of the epigenetic marker acetyl-lysine 9 H3 histone (H3K9ac) and the neuronal activity marker FOSB in the prefrontal cortex (PFC) and hippocampus. Fluoxetine decreased H3K9ac in PFC in non-deprived animals, but a history of maternal deprivation abolished the effect of stress and SSRI treatment on H3K9ac immunoreactivity. In the hippocampus, stress decreased, while SSRI increased H3K9ac immunosignal, unlike in the deprived mice, where the opposite effect was detected. FOSB in stress was stimulated by fluoxetine in the PFC, while it was inhibited in the hippocampus. The FOSB immunoreactivity was almost completely abolished in the hippocampus of the deprived mice. This study showed that FOSB and H3K9ac were modulated in a territory-specific manner by early life adversities and later life stress interacting with the effect of fluoxetine therapy supporting the reliability of our model.
Databáze: MEDLINE