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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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Zhu W, Yuan N, Wan C, Huang M, Fang S, Chen M, Chen J, Ma Q, Chen J. Mapping the scientific research on bipolar disorder: A scientometric study of hotspots, bursts, and trends. J Affect Disord 2023; 340:626-638. [PMID: 37595897 DOI: 10.1016/j.jad.2023.08.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 08/11/2023] [Accepted: 08/14/2023] [Indexed: 08/20/2023]
Abstract
Bipolar disorder (BD) is a severe psychiatric illness with an increasing prevalence worldwide. Although the pathological mechanism of and pharmacological interventions for BD have been extensively investigated in preclinical and clinical studies, a scientometric analysis of the developmental trends, interdisciplinary frontiers, and research hotspots in this field has not yet been conducted. Therefore, we performed a comprehensive scientometric review of 55,358 published studies on BD over the past two decades (2002-2021) to identify the most frequently used keywords and explore research hotspots and trajectories. The present findings revealed the main distribution, knowledge structure, topic evolution, and emerging topics of BD research. Analysing the risk factors, pathogenesis, key brain regions, comorbid conditions, and treatment strategies for BD contributed to understanding of the aetiology, progression, and treatment of this disorder. These findings provided substantial support for continued research in this area.
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Affiliation(s)
- Wenjun Zhu
- Guangzhou Key Laboratory of Formula-Pattern of Traditional Chinese Medicine, Formula-Pattern Research Center, School of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, PR China
| | - Naijun Yuan
- Guangzhou Key Laboratory of Formula-Pattern of Traditional Chinese Medicine, Formula-Pattern Research Center, School of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, PR China; Shenzhen People's Hospital, The Second Clinical Medical College, Jinan University, Shenzhen, Guangdong 518020, PR China; Integrated Chinese and Western Medicine Postdoctoral Research Station, Jinan University, Guangzhou 510632, PR China
| | - Chunmiao Wan
- Guangzhou Key Laboratory of Formula-Pattern of Traditional Chinese Medicine, Formula-Pattern Research Center, School of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, PR China
| | - Minyi Huang
- Guangzhou Key Laboratory of Formula-Pattern of Traditional Chinese Medicine, Formula-Pattern Research Center, School of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, PR China
| | - Shaoyi Fang
- Guangzhou Key Laboratory of Formula-Pattern of Traditional Chinese Medicine, Formula-Pattern Research Center, School of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, PR China
| | - Man Chen
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, Hubei 430065, PR China
| | - Jianbei Chen
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, PR China
| | - Qingyu Ma
- Guangzhou Key Laboratory of Formula-Pattern of Traditional Chinese Medicine, Formula-Pattern Research Center, School of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, PR China.
| | - Jiaxu Chen
- Guangzhou Key Laboratory of Formula-Pattern of Traditional Chinese Medicine, Formula-Pattern Research Center, School of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, PR China; School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, PR China.
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Miranda L, Bordes J, Gasperoni S, Lopez JP. Increasing resolution in stress neurobiology: from single cells to complex group behaviors. Stress 2023; 26:2186141. [PMID: 36855966 DOI: 10.1080/10253890.2023.2186141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/02/2023] Open
Abstract
Stress can have severe psychological and physiological consequences. Thus, inappropriate regulation of the stress response is linked to the etiology of mood and anxiety disorders. The generation and implementation of preclinical animal models represent valuable tools to explore and characterize the mechanisms underlying the pathophysiology of stress-related psychiatric disorders and the development of novel pharmacological strategies. In this commentary, we discuss the strengths and limitations of state-of-the-art molecular and computational advances employed in stress neurobiology research, with a focus on the ever-increasing spatiotemporal resolution in cell biology and behavioral science. Finally, we share our perspective on future directions in the fields of preclinical and human stress research.
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Affiliation(s)
- Lucas Miranda
- Department of Statistical Genetics, Max Planck Institute of Psychiatry, Munich, Germany
- International Max Planck Research School for Translational Psychiatry (IMPRS-TP), Munich, Germany
| | - Joeri Bordes
- Research Group Neurobiology of Stress Resilience, Max Planck Institute of Psychiatry, Munich, Germany
| | - Serena Gasperoni
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Juan Pablo Lopez
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
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Squassina A, Meloni A, Congiu D, Bosganas P, Patrinos GP, Lin R, Turecki G, Severino G, Ardau R, Chillotti C, Pisanu C. Analysis on in vitro effect of lithium on telomere length in lymphoblastoid cell lines from bipolar disorder patients with different clinical response to long-term lithium treatment. Hum Genomics 2022; 16:45. [PMID: 36253798 PMCID: PMC9575289 DOI: 10.1186/s40246-022-00418-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 09/30/2022] [Indexed: 11/26/2022] Open
Abstract
Background It has been suggested that bipolar disorder (BD) is associated with clinical and biological features of accelerated aging. In our previous studies, we showed that long-term lithium treatment was correlated with longer leukocyte telomere length (LTL) in BD patients. A recent study explored the role of TL in BD using patients-derived lymphoblastoid cell lines (LCLs), showing that baseline TL was shorter in BD compared to controls and that lithium in vitro increased TL but only in BD. Here, we used the same cell system (LCLs) to explore if a 7-day treatment protocol with lithium chloride (LiCl) 1 mM was able to highlight differences in TL between BD patients clinically responders (Li-R; n = 15) or non-responders (Li-NR; n = 15) to lithium, and if BD differed from non-psychiatric controls (HC; n = 15).
Results There was no difference in TL between BD patients and HC. Moreover, LiCl did not influence TL in the overall sample, and there was no difference between diagnostic or clinical response groups. Likewise, LiCl did not affect TL in neural precursor cells from healthy donors. Conclusions Our findings suggest that a 7-day lithium treatment protocol and the use of LCLs might not represent a suitable approach to deepen our understanding on the role of altered telomere dynamics in BD as previously suggested by studies in vivo. Supplementary Information The online version contains supplementary material available at 10.1186/s40246-022-00418-8.
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Affiliation(s)
- Alessio Squassina
- Laboratory of Pharmacogenomics, Department of Biomedical Sciences, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, Sp 8 Sestu-Monserrato, Km 0.700, Mosnerrato, 09042, Cagliari, Italy.
| | - Anna Meloni
- Laboratory of Pharmacogenomics, Department of Biomedical Sciences, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, Sp 8 Sestu-Monserrato, Km 0.700, Mosnerrato, 09042, Cagliari, Italy
| | - Donatella Congiu
- Laboratory of Pharmacogenomics, Department of Biomedical Sciences, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, Sp 8 Sestu-Monserrato, Km 0.700, Mosnerrato, 09042, Cagliari, Italy
| | - Panagiotis Bosganas
- Laboratory of Pharmacogenomics and Individualized Therapy, School of Health Sciences, Department of Pharmacy, University of Patras, Patras, Greece
| | - George P Patrinos
- Laboratory of Pharmacogenomics and Individualized Therapy, School of Health Sciences, Department of Pharmacy, University of Patras, Patras, Greece.,College of Medicine and Health Sciences, Department of Genetics and Genomics, United Arab Emirates University, Al-Ain, Abu Dhabi, UAE.,Zayed Center for Health Sciences, United Arab Emirates University, Al-Ain, Abu Dhabi, UAE
| | - Rixing Lin
- McGill Group for Suicide Studies, Department of Psychiatry, Douglas Mental Health University Institute, McGill University, Montreal, QC, Canada.,Integrated Program in Neuroscience, McGill University, Montreal, QC, Canada
| | - Gustavo Turecki
- McGill Group for Suicide Studies, Department of Psychiatry, Douglas Mental Health University Institute, McGill University, Montreal, QC, Canada.,Integrated Program in Neuroscience, McGill University, Montreal, QC, Canada
| | - Giovanni Severino
- Laboratory of Pharmacogenomics, Department of Biomedical Sciences, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, Sp 8 Sestu-Monserrato, Km 0.700, Mosnerrato, 09042, Cagliari, Italy
| | - Raffaella Ardau
- Unit of Clinical Pharmacology, University Hospital Agency of Cagliari, Cagliari, Italy
| | - Caterina Chillotti
- Unit of Clinical Pharmacology, University Hospital Agency of Cagliari, Cagliari, Italy
| | - Claudia Pisanu
- Laboratory of Pharmacogenomics, Department of Biomedical Sciences, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, Sp 8 Sestu-Monserrato, Km 0.700, Mosnerrato, 09042, Cagliari, Italy.
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