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Bajaj S, Mahesh R. Converged avenues: depression and Alzheimer's disease- shared pathophysiology and novel therapeutics. Mol Biol Rep 2024; 51:225. [PMID: 38281208 DOI: 10.1007/s11033-023-09170-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 12/15/2023] [Indexed: 01/30/2024]
Abstract
Depression, a highly prevalent disorder affecting over 280 million people worldwide, is comorbid with many neurological disorders, particularly Alzheimer's disease (AD). Depression and AD share overlapping pathophysiology, and the search for accountable biological substrates made it an essential and intriguing field of research. The paper outlines the neurobiological pathways coinciding with depression and AD, including neurotrophin signalling, the hypothalamic-pituitary-adrenal axis (HPA), cellular apoptosis, neuroinflammation, and other aetiological factors. Understanding overlapping pathways is crucial in identifying common pathophysiological substrates that can be targeted for effective management of disease state. Antidepressants, particularly monoaminergic drugs (first-line therapy), are shown to have modest or no clinical benefits. Regardless of the ineffectiveness of conventional antidepressants, these drugs remain the mainstay for treating depressive symptoms in AD. To overcome the ineffectiveness of traditional pharmacological agents in treating comorbid conditions, a novel therapeutic class has been discussed in the paper. This includes neurotransmitter modulators, glutamatergic system modulators, mitochondrial modulators, antioxidant agents, HPA axis targeted therapy, inflammatory system targeted therapy, neurogenesis targeted therapy, repurposed anti-diabetic agents, and others. The primary clinical challenge is the development of therapeutic agents and the effective diagnosis of the comorbid condition for which no specific diagnosable scale is present. Hence, introducing Artificial Intelligence (AI) into the healthcare system is revolutionary. AI implemented with interdisciplinary strategies (neuroimaging, EEG, molecular biomarkers) bound to have accurate clinical interpretation of symptoms. Moreover, AI has the potential to forecast neurodegenerative and psychiatric illness much in advance before visible/observable clinical symptoms get precipitated.
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Affiliation(s)
- Shivanshu Bajaj
- Department of Pharmacy, Birla Institute of Technology and Science (BITS), Pilani, 333031, Rajasthan, India
| | - Radhakrishnan Mahesh
- Department of Pharmacy, Birla Institute of Technology and Science (BITS), Pilani, 333031, Rajasthan, India.
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2
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Cai CY, Liang HY, Zhou T, Yang C, Yin JJ, Yao MH, Gu QX, Liu D, Ni HY. High-intensity interval training ameliorates chronic unpredictable mild stress-induced depressive behaviors via HDAC2-BDNF signaling in the ventral hippocampus. Brain Res 2023; 1816:148480. [PMID: 37429454 DOI: 10.1016/j.brainres.2023.148480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 07/03/2023] [Accepted: 07/07/2023] [Indexed: 07/12/2023]
Abstract
Major depressive disorder (MDD) is a devastating psychiatric disease, and current therapies could not well meet the demand for MDD treatment. Exercise benefits mental illness, and notably, exercise has been recommended as an alternative option for MDD treatment in some countries. However, the paradigm and intensity of exercise for MDD treatment has yet to be determined. High-intensity interval training (HIIT) is a potent and time-efficient type of exercise training and has gained popularity in recent years. In this study, we exposed the mice to chronic unpredictable mild stress (CUMS) and found HIIT exerted substantial antidepressant effect. Moreover, HIIT further enhanced the antidepressant effect of fluoxetine, a classic antidepressant in the clinic, confirming the antidepressant role of HIIT. HIIT significantly reversed the CUMS-induced upregulations in HDAC2 mRNA and protein level in the ventral hippocampus. We also found HIIT rescued the CUMS-induced downregulation in the expression of brain-derived neurotrophic factor (BDNF) and HDAC2 overexpression counteracted the HIIT-induced increase in BDNF level. More importantly, both virus-mediated HDAC2 overexpression and microinfusion of TrkB-Fc, a BDNF scavenger, in the ventral hippocampus abolished the antidepressant effect of HIIT. Together, our results strongly demonstrate that HIIT attenuates depressive behaviors, probably via HDAC2-BDNF signaling pathway and reveal that HIIT may serve as an alternative option for MDD treatment.
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Affiliation(s)
- Cheng-Yun Cai
- Co-innovation Center of Neuroregeneration, School of Life Sciences, Nantong Laboratory of Development and Diseases, Nantong University, Nantong, China
| | - Hai-Ying Liang
- Department of Pharmacy, Longyan First Affiliated Hospital of Fujian Medical University, Longyan, China
| | - Ting Zhou
- Co-innovation Center of Neuroregeneration, School of Life Sciences, Nantong Laboratory of Development and Diseases, Nantong University, Nantong, China
| | - Chao Yang
- Co-innovation Center of Neuroregeneration, School of Life Sciences, Nantong Laboratory of Development and Diseases, Nantong University, Nantong, China
| | - Jia-Jie Yin
- Co-innovation Center of Neuroregeneration, School of Life Sciences, Nantong Laboratory of Development and Diseases, Nantong University, Nantong, China
| | - Meng-Han Yao
- Co-innovation Center of Neuroregeneration, School of Life Sciences, Nantong Laboratory of Development and Diseases, Nantong University, Nantong, China
| | - Qiu-Xiang Gu
- Co-innovation Center of Neuroregeneration, School of Life Sciences, Nantong Laboratory of Development and Diseases, Nantong University, Nantong, China.
| | - Dong Liu
- Co-innovation Center of Neuroregeneration, School of Life Sciences, Nantong Laboratory of Development and Diseases, Nantong University, Nantong, China.
| | - Huan-Yu Ni
- Department of Pharmacy, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China; Nanjing Medical Center for Clinical Pharmacy, Nanjing, Jiangsu, China.
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3
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Favoretto CA, Pagliusi M, Morais-Silva G. Involvement of brain cell phenotypes in stress-vulnerability and resilience. Front Neurosci 2023; 17:1175514. [PMID: 37476833 PMCID: PMC10354562 DOI: 10.3389/fnins.2023.1175514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 06/19/2023] [Indexed: 07/22/2023] Open
Abstract
Stress-related disorders' prevalence is epidemically increasing in modern society, leading to a severe impact on individuals' well-being and a great economic burden on public resources. Based on this, it is critical to understand the mechanisms by which stress induces these disorders. The study of stress made great progress in the past decades, from deeper into the hypothalamic-pituitary-adrenal axis to the understanding of the involvement of a single cell subtype on stress outcomes. In fact, many studies have used state-of-the-art tools such as chemogenetic, optogenetic, genetic manipulation, electrophysiology, pharmacology, and immunohistochemistry to investigate the role of specific cell subtypes in the stress response. In this review, we aim to gather studies addressing the involvement of specific brain cell subtypes in stress-related responses, exploring possible mechanisms associated with stress vulnerability versus resilience in preclinical models. We particularly focus on the involvement of the astrocytes, microglia, medium spiny neurons, parvalbumin neurons, pyramidal neurons, serotonergic neurons, and interneurons of different brain areas in stress-induced outcomes, resilience, and vulnerability to stress. We believe that this review can shed light on how diverse molecular mechanisms, involving specific receptors, neurotrophic factors, epigenetic enzymes, and miRNAs, among others, within these brain cell subtypes, are associated with the expression of a stress-susceptible or resilient phenotype, advancing the understanding/knowledge on the specific machinery implicate in those events.
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Affiliation(s)
- Cristiane Aparecida Favoretto
- Molecular and Behavioral Neuroscience Laboratory, Department of Pharmacology, Universidade Federal de São Paulo (UNIFESP), São Paulo, São Paulo, Brazil
| | - Marco Pagliusi
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, São Paulo, Brazil
| | - Gessynger Morais-Silva
- Laboratory of Pharmacology, Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
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Jiang Y, Zou M, Wang Y, Wang Y. Nucleus accumbens in the pathogenesis of major depressive disorder: A brief review. Brain Res Bull 2023; 196:68-75. [PMID: 36889362 DOI: 10.1016/j.brainresbull.2023.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 02/16/2023] [Accepted: 03/05/2023] [Indexed: 03/08/2023]
Abstract
Major depressive disorder (MDD) is the most prevalent mental disorder characterized by anhedonia, loss of motivation, avolition, behavioral despair and cognitive abnormalities. Despite substantial advancements in the pathophysiology of MDD in recent years, the pathogenesis of this disorder is not fully understood. Meanwhile,the treatment of MDD with currently available antidepressants is inadequate, highlighting the urgent need for clarifying the pathophysiology of MDD and developing novel therapeutics. Extensive studies have demonstrated the involvement of nuclei such as the prefrontal cortex (PFC), hippocampus (HIP), nucleus accumbens (NAc), hypothalamus, etc., in MDD. NAc,a region critical for reward and motivation,dysregulation of its activity seems to be a hallmark of this mood disorder. In this paper, we present a review of NAc related circuits, cellular and molecular mechanisms underlying MDD and share an analysis of the gaps in current research and possible future research directions.
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Affiliation(s)
- Yajie Jiang
- Institute of Innovation and Applied Research in Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China; Hunan Key Laboratory of Traditional Chinese Medicine Prevention & Treatment of Depressive Diseases, Changsha, China
| | - Manshu Zou
- Hunan Key Laboratory of Traditional Chinese Medicine Prevention & Treatment of Depressive Diseases, Changsha, China
| | - Yeqing Wang
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, Laboratory of Animal Nutrition and Human Health, College of Life Sciences, Hunan Normal University, Changsha 410081, China
| | - Yuhong Wang
- Institute of Innovation and Applied Research in Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China; Hunan Key Laboratory of Traditional Chinese Medicine Prevention & Treatment of Depressive Diseases, Changsha, China.
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5
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German-Ponciano LJ, Rosas-Sánchez GU, Cueto-Escobedo J, Fernández-Demeneghi R, Guillén-Ruiz G, Soria-Fregozo C, Herrera-Huerta EV, Rodríguez-Landa JF. Participation of the Serotonergic System and Brain-Derived Neurotrophic Factor in the Antidepressant-like Effect of Flavonoids. Int J Mol Sci 2022; 23:ijms231810896. [PMID: 36142808 PMCID: PMC9505567 DOI: 10.3390/ijms231810896] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/10/2022] [Accepted: 09/11/2022] [Indexed: 11/16/2022] Open
Abstract
Depressive disorders are among the most disabling diseases experienced around the world, and their incidence has significantly increased over the last few decades due to multiple environmental, social, and biological factors. The search for new pharmacological alternatives to treat depression is a global priority. In preclinical research, molecules obtained from plants, such as flavonoids, have shown promising antidepressant-like properties through several mechanisms of action that have not been fully elucidated, including crossing of the blood brain barrier (BBB). This review will focus on discussing the main findings related to the participation of the serotonergic system and brain-derived neurotrophic factor (BDNF) on the antidepressant-like effect of some flavonoids reported by behavioral, neurochemical, and molecular studies. In this sense, evidence shows that depressive individuals have low levels of serotonin and BDNF, while flavonoids can reverse it. Finally, the elucidation of the mechanism used by flavonoids to modulate serotonin and BDNF will contribute to our understanding of the neurobiological bases underlying the antidepressant-like effects produced by these natural compounds.
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Affiliation(s)
| | | | - Jonathan Cueto-Escobedo
- Departamento de Investigación Clínica y Traslacional Instituto de Ciencias de la Salud, Universidad Veracruzana, Xalapa 91190, Mexico
| | | | - Gabriel Guillén-Ruiz
- Programa de Investigadoras e Investigadores por México CONACyT-Instituto de Neuroetología, Universidad Veracruzana, Xalapa 91190, Mexico
| | - César Soria-Fregozo
- Centro Universitario de Los Lagos, Universidad de Guadalajara, Lagos de Moreno 47460, Mexico
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Pagliusi M, Franco D, Cole S, Morais-Silva G, Chandra R, Fox ME, Iñiguez SD, Sartori CR, Lobo MK. The BDNF-TrkB Pathway Acts Through Nucleus Accumbens D2 Expressing Neurons to Mediate Stress Susceptible Outcomes. Front Psychiatry 2022; 13:854494. [PMID: 35722560 PMCID: PMC9200970 DOI: 10.3389/fpsyt.2022.854494] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 04/29/2022] [Indexed: 11/13/2022] Open
Abstract
Brain-derived neurotrophic factor (BDNF) has a critical role in stress response including neuropsychiatric disorders that are precipitated by stress, such as major depressive disorder (MDD). BDNF acts through its full-length BDNF receptor tyrosine kinase B (TrkB) to trigger a pro-plasticity effect. In contrast, the truncated isoform of the BDNF receptor (TrkB.t1) triggers an anti-plasticity effect. In stress outcomes, BDNF acting in the hippocampus has a stress resilience effect, and, inversely, in the nucleus accumbens (NAc), BDNF acts as a stress susceptible molecule. It is unknown if BDNF-TrkB acts on a specific NAc projection neuron, i.e., medium spiny neuron (MSN or spiny projection neuron), a subtype in stress outcomes. To determine this, we performed chronic social or vicarious witness defeat stress (CSDS or CWDS) in mice expressing TrkB.t1 in dopamine receptor 1 or 2 containing MSNs (D1- or D2-MSNs). Our results showed that TrkB.t1 overexpression in NAc D2-MSNs prevented the CSDS-induced social avoidance or other stress susceptible behaviors in male and female mice. We further showed that this overexpression in D2-MSNs blocked stress susceptible behavior induced by intra-NAc BDNF infusion. In contrast, our results demonstrate that overexpression of TrkB.t1 on NAc D1-MSNs facilitates the SDS susceptible behaviors. Our study provides enhanced details into the NAc cell subtype role of BDNF-TrkB signaling in stress outcomes.
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Affiliation(s)
- Marco Pagliusi
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD, United States
- Department of Structural and Functional Biology, University of Campinas, Campinas, Brazil
| | - Daniela Franco
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Shannon Cole
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Gessynger Morais-Silva
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD, United States
- School of Pharmaceutical Sciences, São Paulo State University, Araraquara, Brazil
| | - Ramesh Chandra
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Megan E. Fox
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Sergio D. Iñiguez
- Department of Psychology, University of Texas at El Paso, El Paso, TX, United States
| | - Cesar R. Sartori
- Department of Structural and Functional Biology, University of Campinas, Campinas, Brazil
| | - Mary Kay Lobo
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD, United States
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Farazi N, Mahmoudi J, Sadigh-Eteghad S, Farajdokht F, Rasta SH. Synergistic effects of combined therapy with transcranial photobiomodulation and enriched environment on depressive- and anxiety-like behaviors in a mice model of noise stress. Lasers Med Sci 2021; 37:1181-1191. [PMID: 34432186 DOI: 10.1007/s10103-021-03370-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 07/03/2021] [Indexed: 12/11/2022]
Abstract
The development of anxiety and depression due to chronic exposure to noise stress has remained as an unsolved health problem so far. Despite the studies suggesting the neuroenhancement effects of transcranial photobiomodulation (tPBM) and housing in an enriched environment (EE), the combined effects of these treatments have not been elucidated yet. Also, there is no available data on the relationship between the application of tPBM and hippocampal brain-derived neurotrophic factor (BDNF) expression in animal models of stress. The present study aims to investigate the application of the tPBM and EE (alone or in combination) on depressive- and anxiety-like behaviors in a mice model of noise stress. Mice were divided into five groups: control, noise, noise + EE, noise + tPBM, and noise + EE + tPBM. Except for the control group, other groups were subjected to 110 dB SPL white noise for 4 h/day for 14 consecutive days and received their respective treatments. Forced Swimming Test (FST) was used to evaluate depressive-like behaviors. Elevated Plus Maze (EPM) and Open Field Test (OFT) were used to evaluate anxiety-like behaviors. BDNF, tyrosine receptor kinase B (TrkB), and cAMP response element-binding (CREB) protein levels in the hippocampus were determined by the Western blot method, and also serum corticosterone levels were assessed using an ELISA kit. Exposure to noise stress significantly elevated serum corticosterone level; downregulated hippocampal BDNF, TrkB, and CREB protein expressions; and resulted in depressive- and anxiety-like behaviors. While, the application of tPBM (810 nm wavelength, 8 J/cm2 fluence, 10 Hz pulsed wave mode), housing in EE, and their combination lowered corticosterone levels, upregulated the BDNF/TrkB/CREB signaling pathway in the hippocampus, and improved behavioral outcomes in noise stress subjected mice. Our finding revealed the improving effects of tPBM and EE on depressive and anxiety-like behaviors induced by noise stress, possibly by augmenting the BDNF/TrkB/CREB signaling pathway.
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Affiliation(s)
- Narmin Farazi
- Department of Medical Physics, Tabriz University of Medical Sciences, 51666-14766, Tabriz, Iran.,Neurosciences Research Center, Tabriz University of Medical Sciences, 51666-14756, Tabriz, Iran
| | - Javad Mahmoudi
- Neurosciences Research Center, Tabriz University of Medical Sciences, 51666-14756, Tabriz, Iran.
| | - Saeed Sadigh-Eteghad
- Neurosciences Research Center, Tabriz University of Medical Sciences, 51666-14756, Tabriz, Iran
| | - Fereshteh Farajdokht
- Neurosciences Research Center, Tabriz University of Medical Sciences, 51666-14756, Tabriz, Iran
| | - Seyed Hossein Rasta
- Department of Medical Physics, Tabriz University of Medical Sciences, 51666-14766, Tabriz, Iran. .,Department of Medical Bioengineering, Tabriz University of Medical Sciences, Tabriz, Iran. .,School of Medical Sciences, University of Aberdeen, Aberdeen, UK.
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8
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Gellner AK, Voelter J, Schmidt U, Beins EC, Stein V, Philipsen A, Hurlemann R. Molecular and neurocircuitry mechanisms of social avoidance. Cell Mol Life Sci 2020; 78:1163-1189. [PMID: 32997200 PMCID: PMC7904739 DOI: 10.1007/s00018-020-03649-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 09/09/2020] [Accepted: 09/15/2020] [Indexed: 12/11/2022]
Abstract
Humans and animals live in social relationships shaped by actions of approach and avoidance. Both are crucial for normal physical and mental development, survival, and well-being. Active withdrawal from social interaction is often induced by the perception of threat or unpleasant social experience and relies on adaptive mechanisms within neuronal networks associated with social behavior. In case of confrontation with overly strong or persistent stressors and/or dispositions of the affected individual, maladaptive processes in the neuronal circuitries and its associated transmitters and modulators lead to pathological social avoidance. This review focuses on active, fear-driven social avoidance, affected circuits within the mesocorticolimbic system and associated regions and a selection of molecular modulators that promise translational potential. A comprehensive review of human research in this field is followed by a reflection on animal studies that offer a broader and often more detailed range of analytical methodologies. Finally, we take a critical look at challenges that could be addressed in future translational research on fear-driven social avoidance.
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Affiliation(s)
- Anne-Kathrin Gellner
- Department of Psychiatry and Psychotherapy, University Hospital Bonn, Venusberg-Campus 1, 53127, Bonn, Germany
| | - Jella Voelter
- Department of Psychiatry, School of Medicine and Health Sciences, University of Oldenburg, Hermann-Ehlers-Str. 7, 26160, Bad Zwischenahn, Germany
| | - Ulrike Schmidt
- Department of Psychiatry and Psychotherapy, University Hospital Bonn, Venusberg-Campus 1, 53127, Bonn, Germany.,Department of Psychiatry Und Psychotherapy, University of Göttingen, Von-Siebold-Str. 5, 37075, Göttingen, Germany
| | - Eva Carolina Beins
- Institute of Human Genetics, University Hospital Bonn, Venusberg-Campus 1, 53127, Bonn, Germany
| | - Valentin Stein
- Institute of Physiology II, University Hospital Bonn, 53115, Bonn, Germany
| | - Alexandra Philipsen
- Department of Psychiatry and Psychotherapy, University Hospital Bonn, Venusberg-Campus 1, 53127, Bonn, Germany
| | - René Hurlemann
- Division of Medical Psychology, Department of Psychiatry, University Hospital, Venusberg-Campus 1, 53127, Bonn, Germany. .,Department of Psychiatry, School of Medicine and Health Sciences, University of Oldenburg, Hermann-Ehlers-Str. 7, 26160, Bad Zwischenahn, Germany. .,Research Center Neurosensory Science, University of Oldenburg, 26129, Oldenburg, Germany.
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Sun B, Lv Y, Xu H, Qi C, Li C, Liu P. Effects of Vortioxetine on depression model rats and expression of BDNF and Trk B in hippocampus. Exp Ther Med 2020; 20:2895-2902. [PMID: 32765787 DOI: 10.3892/etm.2020.9026] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 04/15/2020] [Indexed: 12/28/2022] Open
Abstract
Effects of Vortioxetine on the expression of brain-derived neurotrophic factor (BDNF) and tyrosine kinase B (Trk B) in hippocampus of depressive rats were investigated. Forty-five SD rats were randomly divided into three groups: model control, Vortioxetine and normal control group, with 15 rats in each group. The changes of body mass were recorded within 5 weeks, and the open field test, sugar water preference test and Morris water maze test were performed to evaluate the behavior and mental status of the rats. The expression of BDNF and Trk B in rat hippocampus was detected by enzyme-linked immuno sorbent assay. Compared with the model control group, the body mass, horizontal and vertical movement, sugar and water preference rate of the vortioxetine group in the 5th week were significantly higher than those of the model control group (P<0.05), and significantly lower than those of the normal control group (P<0.05). The escape latency of the Vortioxetine group within 4 days was significantly lower than that of model control group (P<0.05), but higher than that of normal control group (P<0.05). The target quadrant residence time of the Vortioxetine group was significantly lower than that of the model control group (P<0.05), but higher than that of the normal control group (P<0.05). Expression of BDNF and Trk B in the Vortioxetine group was significantly higher than that in the model control group (P<0.05), but lower than that of the normal control group (P<0.05). Collectively, Vortioxetine can effectively alleviate the symptoms of autonomous and exploratory behavior, and reduce the decrease of learning and memory in depressive rats. Vortioxetine can increase the expression of BDNF and Trk B in depressive rats and alleviate their depressive behavior.
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Affiliation(s)
- Baomin Sun
- Department of Psychology, Taian City Central Hospital, Taian, Shandong 271000, P.R. China
| | - Yanhua Lv
- Department of Psychiatry, Taian City Mental Hospital, Taian, Shandong 271000, P.R. China
| | - Hua Xu
- Department of Neurology, Taian City Central Hospital, Taian, Shandong 271000, P.R. China
| | - Chunhua Qi
- Central Laboratory, Taian City Central Hospital, Taian, Shandong 271000, P.R. China
| | - Cuiping Li
- Department of Psychology, Taian City Central Hospital, Taian, Shandong 271000, P.R. China
| | - Pengfei Liu
- Department of Psychology, Taian City Central Hospital, Taian, Shandong 271000, P.R. China
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Prowse N, Dwyer Z, Thompson A, Fortin T, Elson K, Robeson H, Fenner B, Hayley S. Early life selective knockdown of the TrkB receptor and maternal separation modulates adult stress phenotype. Behav Brain Res 2020; 378:112260. [DOI: 10.1016/j.bbr.2019.112260] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 08/23/2019] [Accepted: 09/23/2019] [Indexed: 12/21/2022]
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11
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Qian W, Yu C, Wang S, Niu A, Shi G, Cheng Y, Xu N, Jin Q, Jing X. Depressive-Like Behaviors Induced by Chronic Social Defeat Stress Are Associated With HDAC7 Reduction in the Nucleus Accumbens. Front Psychiatry 2020; 11:586904. [PMID: 33574772 PMCID: PMC7870706 DOI: 10.3389/fpsyt.2020.586904] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 12/29/2020] [Indexed: 11/13/2022] Open
Abstract
Persistent symptoms of depression indicate the adaptive involvement of stable molecules in the brain that may be manifested at the level of chromatin remodeling, such as histone acetylation. Former studies have identified alterations in histone acetylation and deacetylation in several animal models about depression. However, the specific histone deacetylases related with depression are needed to be explored. Here, social avoidance behaviors, anxiety-, and depression-like behaviors were all found in mice suffered from chronic social defeat stress. Moreover, we also discovered that the amount of the class II histone deacetylase, HDAC7 rather than HDAC2, was significantly decreased in the nucleus accumbens of defeated mice, which suggested that HDAC7 might be a crucial histone deacetylase in a chronic social defeat stress model. Our data showed that the depressive-like behaviors induced by chronic social defeat stress were associated with HDAC7 reduction in nucleus accumbens. HDAC7 might be a promising therapeutic target for depression.
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Affiliation(s)
- Weijun Qian
- Imaging Department, Kaifeng Central Hospital, Kaifeng, China
| | - Chao Yu
- Department of Clinical Laboratory, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Shuai Wang
- Key Laboratory of Brain Functional Remodeling, Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, China
| | - Aijun Niu
- Department of Clinical Laboratory, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Guangyan Shi
- Department of Clinical Laboratory, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yuancui Cheng
- Department of Obstetrics, The Second Hospital of Shandong University, Jinan, China
| | - Ning Xu
- Department of Clinical Laboratory, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Qiangqiang Jin
- Department of Clinical Laboratory, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xu Jing
- Department of Clinical Laboratory, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
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Liu X, Qian X, Xing J, Wang J, Sun Y, Wang Q, Li H. Particulate Matter Triggers Depressive-Like Response Associated With Modulation of Inflammatory Cytokine Homeostasis and Brain-Derived Neurotrophic Factor Signaling Pathway in Mice. Toxicol Sci 2019; 164:278-288. [PMID: 29688525 DOI: 10.1093/toxsci/kfy086] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Particulate matter (PM) exposure may contribute to depressive-like response in mice. However, few studies have evaluated the adaptive impacts of long-term PM exposure on depressive-like response associated with systemic inflammation and brain-derived neurotrophic factor (BDNF) signaling pathway. We studied the association among depressive-like behaviors, mRNA levels of pro and anti-inflammatory cytokines, and the expression of BDNF signaling pathway in mice by long-term PM exposure. C57BL/6 male mice were exposed to ambient air alongside control mice breathing air filtered through a high-efficiency air PM (HEPA) filter. Depressive-like behaviors were assessed together with proinflammatory, anti-inflammatory cytokine mRNA levels and the modulation of BDNF pathway in hippocampus and olfactory-bulb of mice exposed to PM for 4, 8, and 12 weeks. Exposure to HEPA-filtered air for 4 weeks may exert antidepressant like effects in mice. Proinflammatory cytokines were up-regulated while the expression of BDNF, its high-affinity receptor tropomyosin-related kinase B (TrkB), and the transcription factor (cyclic adenosine monophosphate)-response element-binding protein (CREB) were down-regulated in ambient air mice. However, after 8 weeks, there was no significant difference in the rate of depressive-like behaviors between the 2 groups. After 12 weeks, mice exposed to ambient air again had a higher rate of depressive-like behaviors, significant up-regulation of proinflammatory cytokines, down-regulation of interleukin-10, BDNF, TrkB, and CREB than HEPA mice. Ultrafine PM in brain tissues of mice exposed to ambient air was observed. Our results suggest continuous high-level PM exposure alters the depressive-like response in mice and induces a damage-repair-imbalance reaction.
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Affiliation(s)
- Xuemei Liu
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210023, China.,School of the Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, China
| | - Xin Qian
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210023, China.,Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET), Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Jing Xing
- School of Biological Science & Medical Engineering, Southeast University, Nanjing 210096, China
| | - Jinhua Wang
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Yixuan Sun
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Qin'geng Wang
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210023, China.,Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET), Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Huiming Li
- State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
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Brain-derived neurotrophic factor signaling mitigates the impact of acute social stress. Neuropharmacology 2018; 148:40-49. [PMID: 30557566 DOI: 10.1016/j.neuropharm.2018.12.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 12/10/2018] [Accepted: 12/12/2018] [Indexed: 12/24/2022]
Abstract
Brain-derived neurotrophic factor (BDNF) is known to promote fear learning as well as avoidant behavioral responses to chronic social defeat stress, but, conversely, this peptide can also have antidepressant effects and can reduce depressant-like symptoms such as social avoidance. The purpose of this study was to use a variety of approaches to determine whether BDNF acting on tropomyosin receptor kinase B (TrkB) promotes or prevents avoidant phenotypes in hamsters and mice that have experienced acute social defeat stress. We utilized systemic and brain region-dependent manipulation of BDNF signaling before or immediately following social defeat stress in Syrian hamsters, TrkBF616A knock-in mice, and C57Bl/6J mice and measured the subsequent behavioral response to a novel opponent. Systemic TrkB receptor agonists reduced, and TrkB receptor antagonists enhanced, behavioral responses to social defeat in hamsters and mice. In the neural circuit that we have shown mediates defeat-induced behavioral responses, BDNF in the basolateral amygdala, but not the nucleus accumbens, also reduced social avoidant phenotypes. Conversely, knockdown in the basolateral amygdala of TrkB signaling in TrkBF616A mice enhanced defeat-induced social avoidance. These data demonstrate that systemic administration of BDNF-TrkB drugs at the time of social defeat alters the behavioral response to the defeat stressor. These drugs appear to act, at least in part, in the basolateral amygdala and not the nucleus accumbens. These findings were generalizable to two rodent species with very different social structures and, within mice, to a variety of strains providing converging evidence that BDNF-TrkB signaling reduces anxiety- and depression-like symptoms following short-term social stress.
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14
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Li YJ, Li YJ, Yang LD, Zhang K, Zheng KY, Wei XM, Yang Q, Niu WM, Zhao MG, Wu YM. Silibinin exerts antidepressant effects by improving neurogenesis through BDNF/TrkB pathway. Behav Brain Res 2018; 348:184-191. [PMID: 29680784 DOI: 10.1016/j.bbr.2018.04.025] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 03/20/2018] [Accepted: 04/17/2018] [Indexed: 12/22/2022]
Abstract
Classic antidepressants benefit depression patients partially by improving neurogenesis and/or brain-derived neurotrophic factor (BDNF)/TrkB pathway which were impaired in depression. In this study, we demonstrated that Silibinin (SLB), a polyphenolic flavanoid from Silybum marianum, ameliorated reserpinized mouse depressant-like behaviors. The antidepressants of SLB administration was associated with increased neural stem cells (NSCs) proliferation and further confirmed in BDNF/TrkB signaling transduction. SLB treatment reversed the decreased expression levels of BDNF and its receptor TrkB, and the reduced activation of downstream target proteins including phosphorylated extracellular-regulated protein kinase (p-ERK) and phosphorylated cAMP-response element binding protein (p-CREB) in depressived hippocampus. Furthermore, intracerebroventricular injection of GNF5837, a TrkB antagonist, abrogated antidepressant-like effects of SLB in mice along with the improved NSC proliferation, as well as enhanced levels of p-ERK and p-CREB in mice hippocampus. Taken together, these results suggest that SLB may exert antidepressant effects through BDNF/TrkB signaling pathway to improve NSC proliferation in acute depression.
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Affiliation(s)
- Yan-Jiao Li
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province, 710038, PR China; Department of Pharmacology, School of Pharmacy, the Fourth Military Medical University, Xi'an, Shaanxi Province, 710032, PR China; Department of Acupuncture-moxibustion-massage, Shaanxi University of Chinese Medicine, Xi'an, Shaanxi Province, 712000, PR China
| | - Yu-Jiao Li
- Department of Pharmacology, School of Pharmacy, the Fourth Military Medical University, Xi'an, Shaanxi Province, 710032, PR China
| | - Liu-Di Yang
- Department of Pharmacology, School of Pharmacy, the Fourth Military Medical University, Xi'an, Shaanxi Province, 710032, PR China; Department of Acupuncture-moxibustion-massage, Shaanxi University of Chinese Medicine, Xi'an, Shaanxi Province, 712000, PR China
| | - Kun Zhang
- Department of Pharmacology, School of Pharmacy, the Fourth Military Medical University, Xi'an, Shaanxi Province, 710032, PR China
| | - Kai-Yin Zheng
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province, 710038, PR China; Department of Pharmacology, School of Pharmacy, the Fourth Military Medical University, Xi'an, Shaanxi Province, 710032, PR China
| | - Xin-Miao Wei
- Student Brigade, the Fourth Military Medical University, Xi'an, Shaanxi Province, 710032, PR China
| | - Qi Yang
- Department of Pharmacology, School of Pharmacy, the Fourth Military Medical University, Xi'an, Shaanxi Province, 710032, PR China
| | - Wen-Min Niu
- Department of Acupuncture-moxibustion-massage, Shaanxi University of Chinese Medicine, Xi'an, Shaanxi Province, 712000, PR China
| | - Ming-Gao Zhao
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province, 710038, PR China; Department of Pharmacology, School of Pharmacy, the Fourth Military Medical University, Xi'an, Shaanxi Province, 710032, PR China
| | - Yu-Mei Wu
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province, 710038, PR China; Department of Pharmacology, School of Pharmacy, the Fourth Military Medical University, Xi'an, Shaanxi Province, 710032, PR China; Department of Acupuncture-moxibustion-massage, Shaanxi University of Chinese Medicine, Xi'an, Shaanxi Province, 712000, PR China.
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15
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Yi LT, Mu RH, Dong SQ, Wang SS, Li CF, Geng D, Liu Q. miR-124 antagonizes the antidepressant-like effects of standardized gypenosides in mice. J Psychopharmacol 2018; 32:458-468. [PMID: 29484897 DOI: 10.1177/0269881118758304] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Our previous study demonstrated that gypenosides produced antidepressant-like effects in mice exposed to chronic mild stress in a brain-derived neurotrophic factor-dependent manner. However, whether other mechanisms are involved in the antidepressant-like effects of gypenosides is not clear. miR-124 is one of the most abundant microRNAs in the hippocampus, and its dysregulation is related to the pathophysiology of depression. The glucocorticoid receptor is dysfunctional in depression, and it is a direct target of miR-124. Therefore, the present study used corticosterone-induced mice as a model to evaluate the role of miR-124 on the antidepressant-like effects of gypenosides. miR-124 agomir was intracerebrally injected prior to administration of gypenosides and corticosterone injection. Sucrose preference and forced swimming tests were performed 21 days later. Proteins related to glucocorticoid receptors and brain-derived neurotrophic factor-tyrosine receptor kinase B signaling in the hippocampus were evaluated. Our results demonstrated that gypenosides reversed the chronic corticosterone injection-induced decreased sucrose preference and increased immobility time. In contrast, this effect was antagonized by miR-124 injection. In addition, gypenosides increased glucocorticoid receptor and tyrosine receptor kinase B expression in the hippocampus, which activated brain-derived neurotrophic factor signaling. miR-124 also blocked these effects. In conclusion, this study demonstrated that a reduction in miR-124 was required for the antidepressant-like effects of gypenosides induced by chronic corticosterone injection in mice.
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Affiliation(s)
- Li-Tao Yi
- 1 Department of Chemical and Pharmaceutical Engineering, Huaqiao University, Xiamen, People's Republic of China.,3 Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen, People's Republic of China
| | - Rong-Hao Mu
- 1 Department of Chemical and Pharmaceutical Engineering, Huaqiao University, Xiamen, People's Republic of China
| | - Shu-Qi Dong
- 1 Department of Chemical and Pharmaceutical Engineering, Huaqiao University, Xiamen, People's Republic of China
| | - Shuang-Shuang Wang
- 1 Department of Chemical and Pharmaceutical Engineering, Huaqiao University, Xiamen, People's Republic of China
| | - Cheng-Fu Li
- 4 Xiamen Hospital of Traditional Chinese Medicine Affiliated to Fujian University of Traditional Chinese Medicine, Xiamen, People's Republic of China
| | - Di Geng
- 1 Department of Chemical and Pharmaceutical Engineering, Huaqiao University, Xiamen, People's Republic of China.,3 Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen, People's Republic of China
| | - Qing Liu
- 1 Department of Chemical and Pharmaceutical Engineering, Huaqiao University, Xiamen, People's Republic of China.,3 Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen, People's Republic of China
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16
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Gestational stress in mouse dams negatively affects gestation and postpartum hippocampal BDNF and P11 protein levels. Mol Cell Neurosci 2018; 88:292-299. [DOI: 10.1016/j.mcn.2018.02.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 01/31/2018] [Accepted: 02/26/2018] [Indexed: 11/23/2022] Open
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17
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Genetically defined fear-induced aggression: Focus on BDNF and its receptors. Behav Brain Res 2018; 343:102-110. [PMID: 29425916 DOI: 10.1016/j.bbr.2018.01.034] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 01/30/2018] [Accepted: 01/31/2018] [Indexed: 12/19/2022]
Abstract
Brain-derived neurotrophic factor (BDNF), its precursor proBDNF, BDNF pro-peptide, BDNF mRNA levels, as well as TrkB and p75NTR receptors mRNA and protein levels, were studied in the brain of rats, selectively bred for more than 85 generations for either the high level or the lack of fear-induced aggressive behavior. Furthermore, we have found that rats of aggressive strain demonstrated both high level of aggression toward humans and increased amplitude of acoustic startle response compared to rats selectively bred for the lack of fear-induced aggression. Significant increase in the BDNF mRNA, mature BDNF and proBDNF protein levels in the raphe nuclei (RN), hippocampus (Hc), nucleus accumbens (NAcc), amygdala, striatum and hypothalamus (Ht) of aggressive rats was revealed. The BDNF/proBDNF ratio was significantly reduced in the Hc and NAcc of highly aggressive rats suggesting prevalence of the proBDNF in these structures. In the Hc and frontal cortex (FC) of aggressive rats, the level of the full-length TrkB (TrkB-FL) receptor form was decreased, whereas the truncated TrkB (TrkB-T) protein level was increased in the RN, FC, substantia nigra and Ht. The TrkB-FL/TrkB-T ratio was significantly decreased in highly aggressive rats suggesting TrkB-T is predominant in highly aggressive rats. The p75NTR expression was slightly changed in majority of studied brain structures of aggressive rats. The data indicate the BDNF system in the brain of aggressive and nonaggressive animals is extremely different at all levels, from transcription to reception, suggesting significant role of BDNF system in the development of highly aggressive phenotype.
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18
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MicroRNA-211/BDNF axis regulates LPS-induced proliferation of normal human astrocyte through PI3K/AKT pathway. Biosci Rep 2017; 37:BSR20170755. [PMID: 28790168 PMCID: PMC5563540 DOI: 10.1042/bsr20170755] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 07/20/2017] [Accepted: 08/08/2017] [Indexed: 01/09/2023] Open
Abstract
Spinal cord injury (SCI) makes a major contribution to disability and deaths worldwide. Reactive astrogliosis, a typical feature after SCI, which undergoes varying molecular and morphological changes, is ubiquitous but poorly understood. Reactive astrogliosis contributes to glial scar formation that impedes axonal regeneration. Brain-derived neurotrophic factor (BDNF), a well-established neurotrophic factor, exerts neuroprotective and growth-promoting effects on a variety of neuronal populations after injury. In the present study, by using LPS-induced in vitro injury model of astroglial cultures, we observed a high expression of interleukin (IL)-6, IL-1β, and BDNF in LPS-stimulated normal human astrocytes (NHAs). BDNF significantly promoted NHA proliferation. Further, online tools were employed to screen the candidate miRNAs which might directly target BDNF to inhibit its expression. Amongst the candidate miRNAs, miR-211 expression was down-regulated by LPS stimulation in a dose-dependent manner. Through direct targetting, miR-211 inhibited BDNF expression. Ectopic miR-211 expression significantly suppressed NHA proliferation, as well as LPS-induced activation of PI3K/Akt pathway. In contrast, inhibition of miR-211 expression significantly promoted NHA proliferation and LPS-induced activation of PI3K/Akt pathway. Taken together, miR-211/BDNF axis regulates LPS-induced NHA proliferation through PI3K/AKT pathway; miR-211/BDNF might serve as a promising target in the strategy against reactive astrocyte proliferation after SCI.
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19
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Wu YY, Jiang YL, He XF, Zhao XY, Shao XM, Sun J, Shen Z, Shou SY, Wei JJ, Ye JY, Yan SS, Fang JQ. 5-HT in the dorsal raphe nucleus is involved in the effects of 100-Hz electro-acupuncture on the pain-depression dyad in rats. Exp Ther Med 2017; 14:107-114. [PMID: 28672900 PMCID: PMC5488474 DOI: 10.3892/etm.2017.4479] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Accepted: 02/17/2017] [Indexed: 01/07/2023] Open
Abstract
The pain-depression dyad is becoming widespread in the clinic and is attracting increasing attention. A previous study by our group found that 100-Hz electro-acupuncture (EA), but not 2-, 50- and 2/100-Hz EA, was effective against the reserpine-induced pain-depression dyad. This finding is in contrast to the fact that low-frequency EA is commonly used to treat supraspinal-originating diseases. The present study aimed to investigate the mechanism underlying the effects of 100-Hz EA on the pain-depression dyad. Repeated reserpine injection was found to induce allodynia and depressive behaviors in rats. It decreased 5-hydroxytryptamine (5-HT) levels and immunoreactive expressions in the dorsal raphe nucleus (DRN). 100-Hz EA alleviated the pain-depression dyad and upregulated 5-HT in the DRN of reserpine-injected rats. Intracerebroventricular injection of para-chlorophenylalanine, an inhibitor of 5-HT resynthesis, suppressed the upregulation of 5-HT in the DRN by 100-Hz EA and partially counteracted the analgesic and anti-depressive effects of 100-Hz EA. The present study was the first to demonstrate that 5-HT in the DRN is involved in mediating the analgesic and anti-depressive effects of 100-Hz EA on the pain-depression dyad. This finding provided a scientific basis for high-frequency EA as a potential treatment for the pain-depression dyad.
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Affiliation(s)
- Yuan-Yuan Wu
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, P.R. China
| | - Yong-Liang Jiang
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, P.R. China
| | - Xiao-Fen He
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, P.R. China
| | - Xiao-Yun Zhao
- Department of Orthopedics and Traumatology, Shanxi Hospital of Traditional Chinese Medicine, Xian, Shanxi 710000, P.R. China
| | - Xiao-Mei Shao
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, P.R. China
| | - Jing Sun
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, P.R. China
| | - Zui Shen
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, P.R. China
| | - Shen-Yun Shou
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, P.R. China
| | - Jun-Jun Wei
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, P.R. China
| | - Jia-Yu Ye
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, P.R. China
| | - Si-Si Yan
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, P.R. China
| | - Jian-Qiao Fang
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, P.R. China
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20
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Schisandra chinensis produces the antidepressant-like effects in repeated corticosterone-induced mice via the BDNF/TrkB/CREB signaling pathway. Psychiatry Res 2016; 243:135-42. [PMID: 27387555 DOI: 10.1016/j.psychres.2016.06.037] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 05/16/2016] [Accepted: 06/23/2016] [Indexed: 01/08/2023]
Abstract
The present study aimed to examine the antidepressant-like effects and the possible mechanisms of Schisandra chinensis on depressive-like behavior induced by repeated corticosterone injections in mice. Here we evaluated the effect of an ethanol extract of the dried fruit of S. chinensis (EESC) on BDNF/TrkB/CREB signaling in the hippocampus and the prefrontal cortex. Three weeks of corticosterone injections in mice resulted in depressive-like behavior, as indicated by the significant decrease in sucrose consumption and increase the immobility time in the forced swim test, but without any influence on the locomotor activity. Further, there was a significant increase in serum corticosterone level and a significant downregulation of BDNF/TrkB/CREB signaling pathway in the hippocampus and prefrontal cortex in CORT-treated mice. Treatment of mice with EESC (600mg/kg) significantly ameliorated all the behavioral and biochemical changes induced by corticosterone. Moreover, pharmacological inhibition of BDNF signaling by K252a abolished entirely the antidepressant-like effect triggered by chronic EESC treatment. These results suggest that EESC produces an antidepressant-like effect in CORT-induced depression in mice, which is possibly mediated, at least in part, by rectifying the stress-based hypothalamic-pituitary-adrenal (HPA) axis dysfunction paradigm and upregulation of BDNF/TrkB/CREB signaling pathway.
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21
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Raab-Graham KF, Workman ER, Namjoshi S, Niere F. Pushing the threshold: How NMDAR antagonists induce homeostasis through protein synthesis to remedy depression. Brain Res 2016; 1647:94-104. [PMID: 27125595 DOI: 10.1016/j.brainres.2016.04.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 04/04/2016] [Accepted: 04/07/2016] [Indexed: 12/17/2022]
Abstract
Healthy neurons have an optimal operating range, coded globally by the frequency of action potentials or locally by calcium. The maintenance of this range is governed by homeostatic plasticity. Here, we discuss how new approaches to treat depression alter synaptic activity. These approaches induce the neuron to recruit homeostatic mechanisms to relieve depression. Homeostasis generally implies that the direction of activity necessary to restore the neuron's critical operating range is opposite in direction to its current activity pattern. Unconventional antidepressant therapies-deep brain stimulation and NMDAR antagonists-alter the neuron's "depressed" state by pushing the neuron's current activity in the same direction but to the extreme edge. These therapies rally the intrinsic drive of neurons in the opposite direction, thereby allowing the cell to return to baseline activity, form new synapses, and restore proper communication. In this review, we discuss seminal studies on protein synthesis dependent homeostatic plasticity and their contribution to our understanding of molecular mechanisms underlying the effectiveness of NMDAR antagonists as rapid antidepressants. Rapid antidepressant efficacy is likely to require a cascade of mRNA translational regulation. Emerging evidence suggests that changes in synaptic strength or intrinsic excitability converge on the same protein synthesis pathways, relieving depressive symptoms. Thus, we address the question: Are there multiple homeostatic mechanisms that induce the neuron and neuronal circuits to self-correct to regulate mood in vivo? Targeting alternative ways to induce homeostatic protein synthesis may provide, faster, safer, and longer lasting antidepressants. This article is part of a Special Issue entitled SI:RNA Metabolism in Disease.
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Affiliation(s)
- Kimberly F Raab-Graham
- Center for Learning and Memory, Department of Neuroscience, Institute of Neuroscience, University of Texas at Austin, Austin, TX 78712, United States; Waggoner Center for Alcohol and Addiction Research, University of Texas at Austin, Austin, TX 78712, United States; Institute for Cell and Molecular Biology, University of Texas at Austin, Austin, TX 78712, United States.
| | - Emily R Workman
- Center for Learning and Memory, Department of Neuroscience, Institute of Neuroscience, University of Texas at Austin, Austin, TX 78712, United States; Waggoner Center for Alcohol and Addiction Research, University of Texas at Austin, Austin, TX 78712, United States
| | - Sanjeev Namjoshi
- Center for Learning and Memory, Department of Neuroscience, Institute of Neuroscience, University of Texas at Austin, Austin, TX 78712, United States; Institute for Cell and Molecular Biology, University of Texas at Austin, Austin, TX 78712, United States
| | - Farr Niere
- Center for Learning and Memory, Department of Neuroscience, Institute of Neuroscience, University of Texas at Austin, Austin, TX 78712, United States; Waggoner Center for Alcohol and Addiction Research, University of Texas at Austin, Austin, TX 78712, United States
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