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Ersoy B, Herzog ML, Pan W, Schilling S, Endres M, Göttert R, Kronenberg GD, Gertz K. The atypical antidepressant tianeptine confers neuroprotection against oxygen-glucose deprivation. Eur Arch Psychiatry Clin Neurosci 2024; 274:777-791. [PMID: 37653354 PMCID: PMC11127858 DOI: 10.1007/s00406-023-01685-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 08/14/2023] [Indexed: 09/02/2023]
Abstract
Proregenerative and neuroprotective effects of antidepressants are an important topic of inquiry in neuropsychiatric research. Oxygen-glucose deprivation (OGD) mimics key aspects of ischemic injury in vitro. Here, we studied the effects of 24-h pretreatment with serotonin (5-HT), citalopram (CIT), fluoxetine (FLU), and tianeptine (TIA) on primary mouse cortical neurons subjected to transient OGD. 5-HT (50 μM) significantly enhanced neuron viability as measured by MTT assay and reduced cell death and LDH release. CIT (10 μM) and FLU (1 μM) did not increase the effects of 5-HT and neither antidepressant conferred neuroprotection in the absence of supplemental 5-HT in serum-free cell culture medium. By contrast, pre-treatment with TIA (10 μM) resulted in robust neuroprotection, even in the absence of 5-HT. Furthermore, TIA inhibited mRNA transcription of candidate genes related to cell death and hypoxia and attenuated lipid peroxidation, a hallmark of neuronal injury. Finally, deep RNA sequencing of primary neurons subjected to OGD demonstrated that OGD induces many pathways relating to cell survival, the inflammation-immune response, synaptic dysregulation and apoptosis, and that TIA pretreatment counteracted these effects of OGD. In conclusion, this study highlights the comparative strength of the 5-HT independent neuroprotective effects of TIA and identifies the molecular pathways involved.
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Affiliation(s)
- Burcu Ersoy
- Department of Neurology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Center for Stroke Research Berlin, Department of Experimental Neurology, Charité-Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Berlin-Brandenburg School for Regenerative Therapies, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Marie-Louise Herzog
- Department of Neurology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Center for Stroke Research Berlin, Department of Experimental Neurology, Charité-Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- DZHK (German Center for Cardiovascular Research), Partner site, Berlin, Germany
| | - Wen Pan
- Department of Neurology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Center for Stroke Research Berlin, Department of Experimental Neurology, Charité-Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- DZHK (German Center for Cardiovascular Research), Partner site, Berlin, Germany
| | - Simone Schilling
- Department of Neurology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Center for Stroke Research Berlin, Department of Experimental Neurology, Charité-Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- DZHK (German Center for Cardiovascular Research), Partner site, Berlin, Germany
- Berlin Institute of Health at Charité, Universitätsmedizin Berlin, Berlin, Germany
| | - Matthias Endres
- Department of Neurology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Center for Stroke Research Berlin, Department of Experimental Neurology, Charité-Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- DZHK (German Center for Cardiovascular Research), Partner site, Berlin, Germany
- Einstein Center for Neurosciences, Charité-Universitätsmedizin Berlin, Berlin, Germany
- DZNE (German Center for Neurodegenerative Diseases), Partner site, Berlin, Germany
- DZPG (German Center for Mental Health), Partner site, Berlin, Germany
| | - Ria Göttert
- Department of Neurology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Center for Stroke Research Berlin, Department of Experimental Neurology, Charité-Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- DZHK (German Center for Cardiovascular Research), Partner site, Berlin, Germany
| | - Golo D Kronenberg
- Department of Psychiatry, Psychotherapy and Psychosomatics, University Hospital of Psychiatry Zürich, Lenggstrasse 31, P.O. Box 363, 8032, Zurich, Switzerland
| | - Karen Gertz
- Department of Neurology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
- Center for Stroke Research Berlin, Department of Experimental Neurology, Charité-Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
- DZHK (German Center for Cardiovascular Research), Partner site, Berlin, Germany.
- Einstein Center for Neurosciences, Charité-Universitätsmedizin Berlin, Berlin, Germany.
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Ibrahim P, Denniston R, Mitsuhashi H, Yang J, Fiori LM, Żurawek D, Mechawar N, Nagy C, Turecki G. Profiling Small RNA From Brain Extracellular Vesicles in Individuals With Depression. Int J Neuropsychopharmacol 2024; 27:pyae013. [PMID: 38457375 PMCID: PMC10946232 DOI: 10.1093/ijnp/pyae013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 03/07/2024] [Indexed: 03/10/2024] Open
Abstract
BACKGROUND Major depressive disorder (MDD) is a leading cause of disability with significant mortality risk. Despite progress in our understanding of the etiology of MDD, the underlying molecular changes in the brain remain poorly understood. Extracellular vesicles (EVs) are lipid-bound particles that can reflect the molecular signatures of the tissue of origin. We aimed to optimize a streamlined EV isolation protocol from postmortem brain tissue and determine whether EV RNA cargo, particularly microRNAs (miRNAs), have an MDD-specific profile. METHODS EVs were isolated from postmortem human brain tissue. Quality was assessed using western blots, transmission electron microscopy, and microfluidic resistive pulse sensing. EV RNA was extracted and sequenced on Illumina platforms. Functional follow-up was performed in silico. RESULTS Quality assessment showed an enrichment of EV markers, as well as a size distribution of 30 to 200 nm in diameter, and no contamination with cellular debris. Small RNA profiling indicated the presence of several RNA biotypes, with miRNAs and transfer RNAs being the most prominent. Exploring miRNA levels between groups revealed decreased expression of miR-92a-3p and miR-129-5p, which was validated by qPCR and was specific to EVs and not seen in bulk tissue. Finally, in silico functional analyses indicate potential roles for these 2 miRNAs in neurotransmission and synaptic plasticity. CONCLUSION We provide a streamlined isolation protocol that yields EVs of high quality that are suitable for molecular follow-up. Our findings warrant future investigations into brain EV miRNA dysregulation in MDD.
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Affiliation(s)
- Pascal Ibrahim
- Integrated Program in Neuroscience, McGill University, Montreal, Quebec, Canada
- McGill Group for Suicide Studies, Douglas Mental Health University Institute, Verdun, Quebec, Canada
| | - Ryan Denniston
- McGill Group for Suicide Studies, Douglas Mental Health University Institute, Verdun, Quebec, Canada
| | - Haruka Mitsuhashi
- Integrated Program in Neuroscience, McGill University, Montreal, Quebec, Canada
- McGill Group for Suicide Studies, Douglas Mental Health University Institute, Verdun, Quebec, Canada
| | - Jennie Yang
- McGill Group for Suicide Studies, Douglas Mental Health University Institute, Verdun, Quebec, Canada
| | - Laura M Fiori
- McGill Group for Suicide Studies, Douglas Mental Health University Institute, Verdun, Quebec, Canada
| | - Dariusz Żurawek
- McGill Group for Suicide Studies, Douglas Mental Health University Institute, Verdun, Quebec, Canada
| | - Naguib Mechawar
- Integrated Program in Neuroscience, McGill University, Montreal, Quebec, Canada
- McGill Group for Suicide Studies, Douglas Mental Health University Institute, Verdun, Quebec, Canada
- Department of Psychiatry, McGill University, Montreal, Quebec, Canada
| | - Corina Nagy
- Integrated Program in Neuroscience, McGill University, Montreal, Quebec, Canada
- McGill Group for Suicide Studies, Douglas Mental Health University Institute, Verdun, Quebec, Canada
- Department of Psychiatry, McGill University, Montreal, Quebec, Canada
| | - Gustavo Turecki
- Integrated Program in Neuroscience, McGill University, Montreal, Quebec, Canada
- McGill Group for Suicide Studies, Douglas Mental Health University Institute, Verdun, Quebec, Canada
- Department of Psychiatry, McGill University, Montreal, Quebec, Canada
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Shao R, Tan X, Pan M, Huang J, Huang L, Bi B, Huang X, Wang J, Li X. Inulin alters gut microbiota to alleviate post-stroke depressive-like behavior associated with the IGF-1-mediated MAPK signaling pathway. Brain Behav 2024; 14:e3387. [PMID: 38376033 PMCID: PMC10794126 DOI: 10.1002/brb3.3387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 12/11/2023] [Accepted: 12/21/2023] [Indexed: 02/21/2024] Open
Abstract
INTRODUCTION Gut microbiota dysbiosis is a key factor of the pathogenesis of post-stroke depression (PSD). PSD is associated with increased hippocampal neuronal apoptosis and decreased synaptic connectivity. Inulin can be involved in hippocampal neuron protection through the microbiome-gut-brain axis. However, the neuroprotective effects of inulin in PSD are still to be further investigated. METHODS By utilizing the GEO public database, we identify differentially expressed genes in the hippocampus following inulin intake. This can help us discover key signaling pathways through functional enrichment analysis. Furthermore, we validate the expression levels of signaling molecules in a rat model of PSD and examine the effects of inulin on behavioral changes and body weight. Additionally, conducting a microbiome analysis to identify significantly different microbial populations and perform correlation analysis. RESULTS The intake of inulin significantly up-regulated mitogen-activated protein kinase signaling pathway in the hippocampus. Inulin changed in the gut microbiota structure, leading to an increase in the abundance of Lactobacillus and Clostridium_sensu_stricto_1 in the intestines of PSD rats, while decreasing the abundance of Ruminococcus UCG_005, Prevotella_9, Oscillospiraceae, and Clostridia UCG_014. Furthermore, the inulin diet elevated levels of insulin-like growth factor 1 in the serum, which showed a positive correlation with the abundance of Lactobacillus. Notably, the consumption of inulin-enriched diet increased activity levels and preference for sugar water in PSD rats, while also reducing body weight. CONCLUSION These findings highlight the potential therapeutic benefits of inulin in the management of depression and emphasize the importance of maintaining a healthy gut microbiota for PSD.
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Affiliation(s)
- Rong Shao
- School of Clinical MedicineYoujiang Medical University for NationalitiesBaiseGuangxiChina
| | - Xiongchang Tan
- School of Clinical MedicineYoujiang Medical University for NationalitiesBaiseGuangxiChina
| | - Minfu Pan
- School of Clinical MedicineYoujiang Medical University for NationalitiesBaiseGuangxiChina
| | - Jiawen Huang
- School of Clinical MedicineYoujiang Medical University for NationalitiesBaiseGuangxiChina
| | - Liu Huang
- School of Clinical MedicineYoujiang Medical University for NationalitiesBaiseGuangxiChina
| | - Binyu Bi
- School of Clinical MedicineYoujiang Medical University for NationalitiesBaiseGuangxiChina
| | - Xiaohua Huang
- Department of NeurologyThe Affiliated Hospital of Youjiang Medical University for NationalitiesBaiseGuangxiChina
| | - Jie Wang
- Department of NeurologyThe Affiliated Hospital of Youjiang Medical University for NationalitiesBaiseGuangxiChina
| | - Xuebin Li
- School of Clinical MedicineYoujiang Medical University for NationalitiesBaiseGuangxiChina
- Department of NeurologyThe Affiliated Hospital of Youjiang Medical University for NationalitiesBaiseGuangxiChina
- Biological Molecule LaboratoryGuangxi University Key Laboratory of High Incidence Prevention and Control Research in Western GuangxiBaiseGuangxiChina
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Qinlin F, Bingqiao W, Linlin H, Peixia S, Lexing X, Lijun Y, Qingwu Y. miR-129-5p targets FEZ1/SCOC/ULK1/NBR1 complex to restore neuronal function in mice with post-stroke depression. Bioengineered 2022; 13:9708-9728. [PMID: 35435132 PMCID: PMC9191875 DOI: 10.1080/21655979.2022.2059910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Post-stroke depression (PSD) seriously affects the normal life of patients. Based on the previous sequencing results, this study selected miR-129-5p as the research object, which was significantly reduced in the PSD model by screening. To clarify the regulatory role of miR-129-5p, this study overexpressed and interfered with miR-129-5p in neuronal cells cultured in vitro, tested its effect on neuronal cell autophagy, and determined expressions of fasciculation and elongation protein zeta-1 (FEZ1), short coiled-coil protein (SCOC), unc-51 like autophagy activating kinase 1 (ULK1) and autophagy cargo receptor (NBR1) autophagy-related proteins. The dual-luciferase reporter system and immunoprecipitation were applied to detect the molecular regulatory mechanism of miR-129-5 and FEZ1, SCOC, ULK1 and NBR1. Findings of the present study revealed that the autophagy of neuronal cells was markedly decreased by overexpressing miR-129-5p (p < 0.05), and expressions of FEZ1, SCOC, ULK1 and NBR1 were substantially reduced (p < 0.05). The dual-luciferase reporter system results indicated that FEZ1, SCOC, ULK1 and NBR1 were all miR-129-5p target genes. Furthermore, immunoprecipitation assay revealed that SCOC, ULK1 and NBR1 could directly bind to the FEZ1 protein. The experiments at an animal level demonstrated that miR-129-5p could effectively alleviate the behavioral indicators of PSD model mice. Taken together, this study testified that SCOC/ULK1/NBR1 proteins could directly bind to FEZ1 to form protein complex, and all of the four proteins FEZ1/SCOC/ULK1/NBR1 were miR-129-5p target genes. miR-129-5p overexpression could effectively restore the behavioral characteristics of model mice, and reduce the autophagy-related proteins FEZ1/SCOC/ULK1/NBR1.
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Affiliation(s)
- Fan Qinlin
- Department of Neurology, Second Affiliated Hospital of Army Medical UniversityChongqing, China
| | - Wang Bingqiao
- Department of Neurology, Second Affiliated Hospital of Army Medical UniversityChongqing, China
| | - Hu Linlin
- Department of Neurology, Second Affiliated Hospital of Army Medical UniversityChongqing, China
| | - Shi Peixia
- Department of Neurology, Second Affiliated Hospital of Army Medical UniversityChongqing, China
| | - Xie Lexing
- Department of Neurology, Second Affiliated Hospital of Army Medical UniversityChongqing, China
| | - Yang Lijun
- Department of General orthopedics, Chongqing Public Health Medical Treatment Center, Chongqing, China
| | - Yang Qingwu
- Department of Neurology, Second Affiliated Hospital of Army Medical UniversityChongqing, China
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