151
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Glutamine Supplementation Prevents Chronic Stress-Induced Mild Cognitive Impairment. Nutrients 2020; 12:nu12040910. [PMID: 32224923 PMCID: PMC7230523 DOI: 10.3390/nu12040910] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 03/20/2020] [Accepted: 03/25/2020] [Indexed: 12/26/2022] Open
Abstract
We recently reported that glutamine (Gln) supplementation protected glutamatergic neurotransmission from the harmful effects of chronic stress. Altered glutamatergic neurotransmission is one of the main causes of cognitive disorders. However, the cognitive enhancer function of Gln has not been clearly demonstrated thus far. Here, we evaluated whether and how Gln supplementation actually affects chronic stress-induced cognitive impairment. Using a chronic immobilization stress (CIS) mouse model, we confirmed that chronic stress induced mild cognitive impairment (MCI) and neuronal damage in the hippocampus. In contrast, Gln-supplemented mice did not show evidence of MCI. To investigate possible underlying mechanisms, we confirmed that CIS increased plasma corticosterone levels as well as brain and plasma levels of reactive oxygen/nitrogen species. CIS also increased levels of inducible nitric oxide synthase and NADPH oxidase subunits (p47phox and p67phox) in both the prefrontal cortex and CA1 region of the hippocampus. CIS decreased the number of synaptic puncta in the prefrontal cortex and hippocampus, but these effects were inhibited by Gln supplementation. Taken together, the present results suggest that Gln is an effective agent against chronic stress-induced MCI.
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152
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Munshi S, Loh MK, Ferrara N, DeJoseph MR, Ritger A, Padival M, Record MJ, Urban JH, Rosenkranz JA. Repeated stress induces a pro-inflammatory state, increases amygdala neuronal and microglial activation, and causes anxiety in adult male rats. Brain Behav Immun 2020; 84:180-199. [PMID: 31785394 PMCID: PMC7010555 DOI: 10.1016/j.bbi.2019.11.023] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 11/25/2019] [Accepted: 11/26/2019] [Indexed: 12/25/2022] Open
Abstract
A link exists between immune function and psychiatric conditions, particularly depressive and anxiety disorders. Psychological stress is a powerful trigger for these disorders and stress influences immune state. However, the nature of peripheral immune changes after stress conflicts across studies, perhaps due to the focus on few measures of pro-inflammatory or anti-inflammatory processes. The basolateral amygdala (BLA) is critical for emotion, and plays an important role in the effects of stress on anxiety. As such, it may be a primary central nervous system (CNS) mediator for the effects of peripheral immune changes on anxiety after stress. Therefore, this study aimed to delineate the influence of stress on peripheral pro-inflammatory and anti-inflammatory aspects, BLA immune activation, and its impact on BLA neuronal activity. To produce a more encompassing view of peripheral immune changes, this study used a less restrictive approach to categorize and group peripheral immune changes. We found that repeated social defeat stress in adult male Sprague-Dawley rats increased the frequencies of mature T-cells positive for intracellular type 2-like cytokine and serum pro-inflammatory cytokines. Principal component analysis and hierarchical clustering was used to guide grouping of T-cells and cytokines, producing unique profiles. Stress shifted the balance towards a specific set that included mostly type 2-like T-cells and pro-inflammatory cytokines. Within the CNS component, repeated stress caused an increase of activated microglia in the BLA, increased anxiety-like behaviors across several assays, and increased BLA neuronal firing in vivo that was prevented by blockade of microglia activation. Because repeated stress can trigger anxiety states by actions in the BLA, and altered immune function can trigger anxiety, these results suggest that repeated stress may trigger anxiety-like behaviors by inducing a pro-inflammatory state in the periphery and the BLA. These results begin to uncover how stress may recruit the immune system to alter the function of brain regions critical to emotion.
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Affiliation(s)
- Soumyabrata Munshi
- Department of Foundational Sciences and Humanities, Cellular and Molecular Pharmacology, Rosalind Franklin University of Medicine and Science, 3333 Green Bay Road, North Chicago, IL 60064, USA.,Department of Foundational Sciences and Humanities, Neuroscience, Rosalind Franklin University of Medicine and Science, 3333 Green Bay Road, North Chicago, IL 60064, USA
| | - Maxine K. Loh
- Department of Foundational Sciences and Humanities, Cellular and Molecular Pharmacology, Rosalind Franklin University of Medicine and Science, 3333 Green Bay Road, North Chicago, IL 60064, USA.,Center for Neurobiology of Stress Resilience and Psychiatric Disorders, Rosalind Franklin University of Medicine and Science, 3333 Green Bay Road, North Chicago, IL 60064, USA
| | - Nicole Ferrara
- Department of Foundational Sciences and Humanities, Cellular and Molecular Pharmacology, Rosalind Franklin University of Medicine and Science, 3333 Green Bay Road, North Chicago, IL 60064, USA.,Center for Neurobiology of Stress Resilience and Psychiatric Disorders, Rosalind Franklin University of Medicine and Science, 3333 Green Bay Road, North Chicago, IL 60064, USA
| | - M. Regina DeJoseph
- Department of Foundational Sciences and Humanities, Physiology and Biophysics, Rosalind Franklin University of Medicine and Science, 3333 Green Bay Road, North Chicago, IL 60064, USA.,Center for Neurobiology of Stress Resilience and Psychiatric Disorders, Rosalind Franklin University of Medicine and Science, 3333 Green Bay Road, North Chicago, IL 60064, USA
| | - Alexandra Ritger
- Department of Foundational Sciences and Humanities, Neuroscience, Rosalind Franklin University of Medicine and Science, 3333 Green Bay Road, North Chicago, IL 60064, USA.,Center for Neurobiology of Stress Resilience and Psychiatric Disorders, Rosalind Franklin University of Medicine and Science, 3333 Green Bay Road, North Chicago, IL 60064, USA
| | - Mallika Padival
- Department of Foundational Sciences and Humanities, Cellular and Molecular Pharmacology, Rosalind Franklin University of Medicine and Science, 3333 Green Bay Road, North Chicago, IL 60064, USA.,Center for Neurobiology of Stress Resilience and Psychiatric Disorders, Rosalind Franklin University of Medicine and Science, 3333 Green Bay Road, North Chicago, IL 60064, USA
| | - Matthew J. Record
- Department of Foundational Sciences and Humanities, Cellular and Molecular Pharmacology, Rosalind Franklin University of Medicine and Science, 3333 Green Bay Road, North Chicago, IL 60064, USA
| | - Janice H. Urban
- Department of Foundational Sciences and Humanities, Physiology and Biophysics, Rosalind Franklin University of Medicine and Science, 3333 Green Bay Road, North Chicago, IL 60064, USA.,Center for Neurobiology of Stress Resilience and Psychiatric Disorders, Rosalind Franklin University of Medicine and Science, 3333 Green Bay Road, North Chicago, IL 60064, USA
| | - J. Amiel Rosenkranz
- Department of Foundational Sciences and Humanities, Cellular and Molecular Pharmacology, Rosalind Franklin University of Medicine and Science, 3333 Green Bay Road, North Chicago, IL 60064, USA.,Center for Neurobiology of Stress Resilience and Psychiatric Disorders, Rosalind Franklin University of Medicine and Science, 3333 Green Bay Road, North Chicago, IL 60064, USA.,Corresponding Author: J. Amiel Rosenkranz, Ph.D., Center for Neurobiology of Stress Resilience and Psychiatric Disorders, Rosalind Franklin University of Medicine and Science, 3333 Green Bay Road, North Chicago, IL 60064, USA., Telephone: 847-578-8680; Fax: 847-578-3268,
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153
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O'Leary H, Vanderlinden L, Southard L, Castano A, Saba LM, Benke TA. Transcriptome analysis of rat dorsal hippocampal CA1 after an early life seizure induced by kainic acid. Epilepsy Res 2020; 161:106283. [PMID: 32062370 DOI: 10.1016/j.eplepsyres.2020.106283] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 01/17/2020] [Accepted: 01/29/2020] [Indexed: 12/13/2022]
Abstract
Seizures that occur during early development are associated with adverse neurodevelopmental outcomes. Causation and mechanisms are currently under investigation. Induction of an early life seizure by kainic acid (KA) in immature rats on post-natal day (P) 7 results in behavioral changes in the adult rat that reflect social and intellectual deficits without overt cellular damage. Our previous work also demonstrated increased expression of CA1 hippocampal long-term potentiation (LTP) and reduced desensitization of α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid-type ionotropic glutamate receptors (AMPA-R) one week following a kainic acid induced seizure (KA-ELS). Here we used RNA sequencing (RNAseq) of mRNA from dorsal hippocampal CA1 to probe changes in mRNA levels one week following KA-ELS as a means to investigate the mechanisms for these functional changes. Ingenuity pathway analysis (IPA) confirmed our previous results by predicting an up-regulation of the synaptic LTP pathway. Differential gene expression results revealed significant differences in 7 gene isoforms. Additional assessments included AMPA-R splice variants and adenosine deaminase acting on RNA 2 (ADAR2) editing sites as a means to determine the mechanism for reduced AMPA-R desensitization. Splice variant analysis demonstrated that KA-ELS result in a small, but significant decrease in the "flop" isoform of Gria3, and editing site analysis revealed significant changes in the editing of a kainate receptor subunit, Grik2, and a serotonin receptor, Htr2c. While these specific changes may not account for altered AMPA-R desensitization, the differences indicate that KA-ELS alters gene expression in the hippocampal CA1 one week after the insult.
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Affiliation(s)
- Heather O'Leary
- Department of Pediatrics, University of Colorado, School of Medicine, 80045, United States.
| | - Lauren Vanderlinden
- Department of Biostatistics and Informatics, Colorado School of Public Health, 80045, United States.
| | - Lara Southard
- Department of Psychology, Colorado State University, Fort Collins, 80523, United States.
| | - Anna Castano
- Department of Pediatrics, University of Colorado, School of Medicine, 80045, United States.
| | - Laura M Saba
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, 80045, United States.
| | - Tim A Benke
- Department of Pediatrics, University of Colorado, School of Medicine, 80045, United States; Department of Neurology, University of Colorado, School of Medicine, 80045, United States; Department of Pharmacology, University of Colorado, School of Medicine, 80045, United States; Department of Otolaryngology, University of Colorado, School of Medicine, 80045, United States; Neuroscience Graduate Program, University of Colorado, School of Medicine, 80045, United States.
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154
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Anderson RM, Johnson SB, Lingg RT, Hinz DC, Romig-Martin SA, Radley JJ. Evidence for Similar Prefrontal Structural and Functional Alterations in Male and Female Rats Following Chronic Stress or Glucocorticoid Exposure. Cereb Cortex 2020; 30:353-370. [PMID: 31184364 PMCID: PMC7029687 DOI: 10.1093/cercor/bhz092] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 04/01/2019] [Accepted: 04/08/2019] [Indexed: 12/28/2022] Open
Abstract
Previous work of ours and others has documented regressive changes in neuronal architecture and function in the medial prefrontal cortex (mPFC) of male rats following chronic stress. As recent focus has shifted toward understanding whether chronic stress effects on mPFC are sexually dimorphic, here we undertake a comprehensive analysis to address this issue. First, we show that chronic variable stress (14-day daily exposure to different challenges) resulted in a comparable degree of adrenocortical hyperactivity, working memory impairment, and dendritic spine loss in mPFC pyramidal neurons in both sexes. Next, exposure of female rats to 21-day regimen of corticosterone resulted in a similar pattern of mPFC dendritic spine attrition and increase in spine volume. Finally, we examined the effects of another widely used regimen, chronic restraint stress (CRS, 21-day of daily 6-h restraint), on dendritic spine changes in mPFC in both sexes. CRS resulted in response decrements in adrenocortical output (habituation), and induced a pattern of consistent, but less widespread, dendritic spine loss similar to the foregoing challenges. Our data suggest that chronic stress or glucocorticoid exposure induces a relatively undifferentiated pattern of structural and functional alterations in mPFC in both males and females.
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Affiliation(s)
- Rachel M Anderson
- Department of Psychological and Brain Sciences, Program in Neuroscience, Iowa Neuroscience Institute, University of Iowa, Iowa City, IA, USA
| | - Shane B Johnson
- Department of Psychological and Brain Sciences, Program in Neuroscience, Iowa Neuroscience Institute, University of Iowa, Iowa City, IA, USA
| | - Ryan T Lingg
- Department of Psychological and Brain Sciences, Program in Neuroscience, Iowa Neuroscience Institute, University of Iowa, Iowa City, IA, USA
| | - Dalton C Hinz
- Department of Psychological and Brain Sciences, Program in Neuroscience, Iowa Neuroscience Institute, University of Iowa, Iowa City, IA, USA
| | - Sara A Romig-Martin
- Department of Psychological and Brain Sciences, Program in Neuroscience, Iowa Neuroscience Institute, University of Iowa, Iowa City, IA, USA
| | - Jason J Radley
- Department of Psychological and Brain Sciences, Program in Neuroscience, Iowa Neuroscience Institute, University of Iowa, Iowa City, IA, USA
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155
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Ketamine disinhibits dendrites and enhances calcium signals in prefrontal dendritic spines. Nat Commun 2020; 11:72. [PMID: 31911591 PMCID: PMC6946708 DOI: 10.1038/s41467-019-13809-8] [Citation(s) in RCA: 114] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 11/22/2019] [Indexed: 02/07/2023] Open
Abstract
A subanesthetic dose of ketamine causes acute psychotomimetic symptoms and sustained antidepressant effects. In prefrontal cortex, the prevailing disinhibition hypothesis posits that N-methyl-d-aspartate receptor (NMDAR) antagonists such as ketamine act preferentially on GABAergic neurons. However, cortical interneurons are heterogeneous. In particular, somatostatin-expressing (SST) interneurons selectively inhibit dendrites and regulate synaptic inputs, yet their response to systemic NMDAR antagonism is unknown. Here, we report that ketamine acutely suppresses the activity of SST interneurons in the medial prefrontal cortex of the awake mouse. The deficient dendritic inhibition leads to greater synaptically evoked calcium transients in the apical dendritic spines of pyramidal neurons. By manipulating NMDAR signaling via GluN2B knockdown, we show that ketamine’s actions on the dendritic inhibitory mechanism has ramifications for frontal cortex-dependent behaviors and cortico-cortical connectivity. Collectively, these results demonstrate dendritic disinhibition and elevated calcium levels in dendritic spines as important local-circuit alterations driven by the administration of subanesthetic ketamine. The authors show that a subanesthetic dose of ketamine markedly elevate calcium signals in apical dendritic spines in the mouse prefrontal cortex. This effect is driven by a local-circuit mechanism that involves the suppression of somatostatin interneurons leading to dendritic disinhibition.
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156
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Bidirectional Optogenetically-Induced Plasticity of Evoked Responses in the Rat Medial Prefrontal Cortex Can Impair or Enhance Cognitive Set-Shifting. eNeuro 2020; 7:ENEURO.0363-19.2019. [PMID: 31852759 PMCID: PMC6946542 DOI: 10.1523/eneuro.0363-19.2019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 11/21/2019] [Accepted: 12/10/2019] [Indexed: 12/20/2022] Open
Abstract
Chronic stress compromises cognition, including executive function mediated in the medial prefrontal cortex (mPFC). To investigate mechanisms underlying these processes, we use chronic unpredictable stress (CUS), which reduces activity in the mPFC and impairs cognitive set-shifting, a measure of cognitive flexibility in laboratory rats. It has been shown that CUS attenuates the local electrical field potential response evoked in the mPFC by stimulation of the ascending excitatory afferent from the mediodorsal thalamus (MDT). Thus, in this study, to investigate the role that such changes in afferent-evoked responsivity of the mPFC might play in the cognitive deficits induced by CUS, we used optogenetics to directly induce plastic changes in the thalamic-mPFC afferent pathway. Glutamatergic neurons in the MDT were virally-induced to express the ChETA variant of channelrhodopsin. Then, to first validate the optogenetic induction of plasticity, long-term depression (LTD) or long-term potentiation (LTP) were induced by laser stimulation of ChETA-expressing terminals in the mPFC of anesthetized rats. In subsequent experiments, induction of opto-LTD in awake animals produced set-shifting deficits similar to those induced by CUS. By contrast, inducing opto-LTP in rats that had received prior CUS treatment corrected the stress-induced deficit in set-shifting. These results suggest that stress-induced plasticity in the thalamic-mPFC pathway is sufficient to produce stress-induced cognitive deficits, and may represent a novel target for effective therapeutic intervention to correct cognitive impairment in stress-related psychiatric disorders.
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157
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Adolescent stress increases depression-like behaviors and alters the excitatory-inhibitory balance in aged mice. Chin Med J (Engl) 2020; 132:1689-1699. [PMID: 31268909 PMCID: PMC6759106 DOI: 10.1097/cm9.0000000000000313] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Background: Depression affects approximately 5% of elderly people and its etiology might be related to chronic stress exposure during neurodevelopmental periods. In this study, we examined the effects of adolescent chronic social stress in aged mice on depressive behaviors and the excitatory-inhibitory (E/I) balance in stress-sensitive regions of the brain. Methods: Sixty-four adolescent, male C57BL/6 mice were randomly assigned to either the 7-week (from post-natal days 29 to 77) social instability stress (stress group, n = 32) or normal housing conditions (control group, n = 32). At 15 months of age, 16 mice were randomly selected from each group for a series of behavioral tests, including two depression-related tasks (the sucrose preference test and the tail suspension test). Three days following the last behavioral test, eight mice were randomly selected from each group for immunohistochemical analyses to measure the cell density of parvalbumin (PV+)- and calretinin (CR+)-positive gamma-aminobutyric-acid (GABA)ergic inhibitory inter-neurons, and the expression levels of vesicular transporters of glutamate-1 (VGluT1) and vesicular GABA transporter (VGAT) in three stress-sensitive regions of the brain (the medial pre-frontal cortex [mPFC], hippocampus, and amygdala). Results: Behaviorally, compared with the control group, adolescent chronic stress increased depression-like behaviors as shown in decreased sucrose preference (54.96 ± 1.97% vs. 43.11 ± 2.85%, t(22) = 3.417, P = 0.003) and reduced latency to immobility in the tail suspension test (92.77 ± 25.08 s vs. 33.14 ± 5.95 s, t(25) = 2.394, P = 0.025), but did not affect anxiety-like behaviors and pre-pulse inhibition. At the neurobiologic level, adolescent stress down-regulated PV+, not CR+, inter-neuron density in the mPFC (F(1, 39) = 19.30, P < 0.001), and hippocampus (F(1, 42) = 5.823, P = 0.020) and altered the CR+, not PV+, inter-neuron density in the amygdala (F(1, 28) = 23.16, P < 0.001). The VGluT1/VGAT ratio was decreased in all three regions (all F > 10.09, all P < 0.004), which suggests stress-induced hypoexcitability in these regions. Conclusions: Chronic stress during adolescence increased depression-like behaviors in aged mice, which may be associated with the E/I imbalance in stress-sensitive brain regions.
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158
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Chakraborty S, Tripathi SJ, Srikumar B, Raju T, Shankaranarayana Rao B. N-acetyl cysteine ameliorates depression-induced cognitive deficits by restoring the volumes of hippocampal subfields and associated neurochemical changes. Neurochem Int 2020; 132:104605. [DOI: 10.1016/j.neuint.2019.104605] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 11/11/2019] [Accepted: 11/15/2019] [Indexed: 12/14/2022]
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159
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Kinlein SA, Karatsoreos IN. The hypothalamic-pituitary-adrenal axis as a substrate for stress resilience: Interactions with the circadian clock. Front Neuroendocrinol 2020; 56:100819. [PMID: 31863788 PMCID: PMC7643247 DOI: 10.1016/j.yfrne.2019.100819] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 10/29/2019] [Accepted: 12/17/2019] [Indexed: 12/22/2022]
Abstract
Stress, primarily processed via the hypothalamic-pituitary-adrenal (HPA) axis, engages biological pathways throughout the brain and body which promote adaptation and survival to changing environmental demands. Adaptation to environmental challenges is compromised when these pathways are no longer functioning optimally. The physiological and behavioral mechanisms through which HPA axis function influences stress adaptation and resilience are not fully elucidated. Our understanding of stress biology and disease must take into account the complex interactions between the endocrine system, neural circuits, and behavioral coping strategies. In addition, further consideration must be taken concerning influences of other aspects of physiology, including the circadian clock which is critical for regulation of daily changes in HPA activity. While adding a layer of complexity, it also offers targets for intervention. Understanding the role of HPA function in mediating these diverse biological responses will lead to important insights about how to bolster successful stress adaptation and promote stress resilience.
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Affiliation(s)
- Scott A Kinlein
- Department of Integrative Physiology and Neuroscience, Washington State University, Pullman, WA 99164, United States
| | - Ilia N Karatsoreos
- Department of Integrative Physiology and Neuroscience, Washington State University, Pullman, WA 99164, United States; Department of Psychological and Brain Sciences, University of Massachusetts, Amherst, MA 01003, United States.
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160
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Zhou XT, Bao WD, Liu D, Zhu LQ. Targeting the Neuronal Activity of Prefrontal Cortex: New Directions for the Therapy of Depression. Curr Neuropharmacol 2020; 18:332-346. [PMID: 31686631 PMCID: PMC7327942 DOI: 10.2174/1570159x17666191101124017] [Citation(s) in RCA: 6] [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: 07/22/2019] [Revised: 09/24/2019] [Accepted: 10/31/2019] [Indexed: 01/05/2023] Open
Abstract
Depression is one of the prevalent psychiatric illnesses with a comprehensive performance such as low self-esteem, lack of motivation, anhedonia, poor appetite, low energy, and uncomfortableness without a specific cause. So far, the cause of depression is not very clear, but it is certain that many aspects of biological psychological and social environment are involved in the pathogenesis of depression. Recently, the prefrontal cortex (PFC) has been indicated to be a pivotal brain region in the pathogenesis of depression. And increasing evidence showed that the abnormal activity of the PFC neurons is linked with depressive symptoms. Unveiling the molecular and cellular, as well as the circuit properties of the PFC neurons will help to find out how abnormalities in PFC neuronal activity are associated with depressive disorders. In addition, concerning many antidepressant drugs, in this review, we concluded the effect of several antidepressants on PFC neuronal activity to better understand its association with depression.
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Affiliation(s)
| | | | | | - Ling-Qiang Zhu
- Address correspondence to this author at the Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China; Tel: 862783692625; Fax: 862783692608; E-mail:
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161
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Moench KM, Breach MR, Wellman CL. Prior stress followed by a novel stress challenge results in sex-specific deficits in behavioral flexibility and changes in gene expression in rat medial prefrontal cortex. Horm Behav 2020; 117:104615. [PMID: 31634476 PMCID: PMC6980662 DOI: 10.1016/j.yhbeh.2019.104615] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 10/08/2019] [Accepted: 10/10/2019] [Indexed: 12/19/2022]
Abstract
Chronic stress leads to sex-specific changes in the structure and function of rat medial prefrontal cortex (mPFC). Little is known about whether these effects persist following the cessation of chronic stress, or how these initial effects may impact responses to future stressors. Here we examined attentional set-shifting in male and female rats following chronic restraint stress, a post-chronic stress rest period, and an acute novel stress challenge. Chronic stress resulted in a reversible impairment in extradimensional set-shifting in males, but had no effect on attentional set-shifting in females. Surprisingly, chronically stressed female, but not male, rats had impaired extradimensional set-shifting following a novel stress challenge. Alterations in the balance of excitation and inhibition of mPFC have been implicated in behavioral deficits following chronic stress. Thus, in a separate group of rats, we examined changes in the expression of genes related to glutamatergic (NR1, NR2A, NR2B, GluR1) and GABAergic (Gad67, parvalbumin, somatostatin) neurotransmission in mPFC after acute and chronic stress, rest, and their combination. Stress significantly altered the expression of NR1, GluR1, Gad67, and parvalbumin. Notably, the pattern of stress effects on NR1, Gad67, and parvalbumin expression differed between males and females. In males, these genes were upregulated following the post-chronic stress rest period, while minimal changes were found in females. In contrast, both males and females had greater GluR1 expression following a rest period. These findings suggest that chronic stress leads to sex-specific stress adaptation mechanisms that may contribute to sex differences in response to subsequent stress exposure.
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Affiliation(s)
- Kelly M Moench
- Department of Psychological & Brain Sciences, Indiana University, Bloomington, IN, USA; Program in Neuroscience, Indiana University, Bloomington, IN, USA; Center for the Integrative Study of Animal Behavior, Bloomington, IN, USA; Indiana University, Bloomington, IN, USA
| | - Michaela R Breach
- Department of Psychological & Brain Sciences, Indiana University, Bloomington, IN, USA
| | - Cara L Wellman
- Department of Psychological & Brain Sciences, Indiana University, Bloomington, IN, USA; Program in Neuroscience, Indiana University, Bloomington, IN, USA; Center for the Integrative Study of Animal Behavior, Bloomington, IN, USA; Indiana University, Bloomington, IN, USA.
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162
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Wang QS, Li K, Gao LN, Zhang Y, Lin KM, Cui YL. Intranasal delivery of berberine via in situ thermoresponsive hydrogels with non-invasive therapy exhibits better antidepressant-like effects. Biomater Sci 2020; 8:2853-2865. [DOI: 10.1039/c9bm02006c] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Intranasal delivery of thermoresponsive hydrogels can improve the bioavailability of berberine in the brain, so as to improve the antidepressant effect.
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Affiliation(s)
- Qiang-Song Wang
- Tianjin Key Laboratory of Biomedical Materials
- Institute of Biomedical Engineering
- Chinese Academy of Medical Science & Peking Union Medical College
- Tianjin 300192
- PR China
| | - Kefeng Li
- School of Medicine
- University of California
- San Diego (UCSD)
- San Diego
- USA
| | - Li-Na Gao
- Tianjin State Key Laboratory of Modern Chinese Medicine
- Research Center of Traditional Chinese Medicine
- Tianjin University of Traditional Chinese Medicine
- Tianjin
- PR China
| | - Ye Zhang
- Tianjin State Key Laboratory of Modern Chinese Medicine
- Research Center of Traditional Chinese Medicine
- Tianjin University of Traditional Chinese Medicine
- Tianjin
- PR China
| | - Ke-Ming Lin
- Tianjin State Key Laboratory of Modern Chinese Medicine
- Research Center of Traditional Chinese Medicine
- Tianjin University of Traditional Chinese Medicine
- Tianjin
- PR China
| | - Yuan-Lu Cui
- Tianjin State Key Laboratory of Modern Chinese Medicine
- Research Center of Traditional Chinese Medicine
- Tianjin University of Traditional Chinese Medicine
- Tianjin
- PR China
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163
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Wang L, He Z, Zhu Z, Yuan W, Cai W, Li L, Zhang J, Hou W, Yang Y, Zhang X, Guo Q, Wang X, Lian Z, Tai F. The serotonin system in the hippocampus CA3 involves in effects of CSDS on social recognition in adult female mandarin voles (Microtus mandarinus). Prog Neuropsychopharmacol Biol Psychiatry 2019; 95:109704. [PMID: 31330217 DOI: 10.1016/j.pnpbp.2019.109704] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 06/28/2019] [Accepted: 07/17/2019] [Indexed: 12/27/2022]
Abstract
Chronic social defeat stress (CSDS) exacerbated the development of stress-related psychiatric disorders, and the social recognition dysfunction is the core feature of many psychiatric disorders. However, the effects of CSDS on female social recognition and the underlying neural mechanisms remain unclear. Using highly aggressive adult female mandarin voles (Microtus mandarinus) as animal model, the aim of this work is to investigate the effects of CSDS on social recognition in adult female rodents and the neurobiological mechanisms underlying these effects. Our results indicate the CSDS disrupted the normal social recognition in adult female voles. Meanwhile, defeated voles exhibited increased neural activity in the DG, CA1 and CA3 of the hippocampus. Furthermore, CSDS reduced levels of serotonin (5-HT) and serotonin 1A receptors (5-HT1AR) in the CA3. We also discovered that microinjection of 8-OH-DPAT into the CA3 effectively reversed the social recognition deficits induced by CSDS, and an infusion of WAY-100635 into the CA3 of control female voles impaired social recognition. Moreover, targeted activation of the 5-HT neuron projection from the DRN to CA3 by long-term administration of CNO significantly prevented the CSDS induced social recognition deficits. Taken together, our study demonstrated that CSDS induced social recognition deficits in adult female voles, and these effects were mediated by the action of 5-HT on the 5-HT1AR in the hippocampus CA3. The projection from the DRN to CA3 may be involved in social recognition deficits induced by CSDS.
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Affiliation(s)
- Limin Wang
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Zhixiong He
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Zhenxiang Zhu
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Wei Yuan
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Wenqi Cai
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Laifu Li
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Jing Zhang
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Wenjuan Hou
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Yang Yang
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Xueni Zhang
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Qianqian Guo
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Xia Wang
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Zhenmin Lian
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Fadao Tai
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China.
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164
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Effects of stress on the structure and function of the medial prefrontal cortex: Insights from animal models. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2019; 150:129-153. [PMID: 32204829 DOI: 10.1016/bs.irn.2019.11.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Stress alters both cognitive and emotional function, and increases risk for a variety of psychological disorders, such as depression and posttraumatic stress disorder. The prefrontal cortex is critical for executive function and emotion regulation, is a target for stress hormones, and is implicated in many stress-influenced psychological disorders. Therefore, understanding how stress-induced changes in the structure and function of the prefrontal cortex are related to stress-induced changes in behavior may elucidate some of the mechanisms contributing to stress-sensitive disorders. This review focuses on data from rodent models to describe the effects of chronic stress on behaviors mediated by the medial prefrontal cortex, the effects of chronic stress on the morphology and physiology of the medial prefrontal cortex, mechanisms that may mediate these effects, and evidence for sex differences in the effects of stress on the prefrontal cortex. Understanding how stress influences prefrontal cortex and behaviors mediated by it, as well as sex differences in this effect, will elucidate potential avenues for novel interventions for stress-sensitive disorders characterized by deficits in executive function and emotion regulation.
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165
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Joffe ME, Santiago CI, Oliver KH, Maksymetz J, Harris NA, Engers JL, Lindsley CW, Winder DG, Conn PJ. mGlu 2 and mGlu 3 Negative Allosteric Modulators Divergently Enhance Thalamocortical Transmission and Exert Rapid Antidepressant-like Effects. Neuron 2019; 105:46-59.e3. [PMID: 31735403 DOI: 10.1016/j.neuron.2019.09.044] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 08/14/2019] [Accepted: 09/25/2019] [Indexed: 12/23/2022]
Abstract
Non-selective antagonists of metabotropic glutamate receptor subtypes 2 (mGlu2) and 3 (mGlu3) exert rapid antidepressant-like effects by enhancing prefrontal cortex (PFC) glutamate transmission; however, the receptor subtype contributions and underlying mechanisms remain unclear. Here, we leveraged newly developed negative allosteric modulators (NAMs), transgenic mice, and viral-assisted optogenetics to test the hypothesis that selective inhibition of mGlu2 or mGlu3 potentiates PFC excitatory transmission and confers antidepressant efficacy in preclinical models. We found that systemic treatment with an mGlu2 or mGlu3 NAM rapidly activated biophysically unique PFC pyramidal cell ensembles. Mechanistic studies revealed that mGlu2 and mGlu3 NAMs enhance thalamocortical transmission and inhibit long-term depression by mechanistically distinct presynaptic and postsynaptic actions. Consistent with these actions, systemic treatment with either NAM decreased passive coping and reversed anhedonia in two independent chronic stress models, suggesting that both mGlu2 and mGlu3 NAMs induce antidepressant-like effects through related but divergent mechanisms of action.
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Affiliation(s)
- Max E Joffe
- Department of Pharmacology, Vanderbilt University, Nashville, TN 37232, USA; Vanderbilt Center for Neuroscience Drug Discovery, Nashville, TN 37232, USA; Vanderbilt Center for Addiction Research, Nashville, TN 37232, USA.
| | - Chiaki I Santiago
- Vanderbilt Center for Neuroscience Drug Discovery, Nashville, TN 37232, USA; Vanderbilt University, Nashville, TN 37232, USA
| | - Kendra H Oliver
- Department of Pharmacology, Vanderbilt University, Nashville, TN 37232, USA
| | - James Maksymetz
- Department of Pharmacology, Vanderbilt University, Nashville, TN 37232, USA; Vanderbilt Center for Neuroscience Drug Discovery, Nashville, TN 37232, USA
| | - Nicholas A Harris
- Vanderbilt Center for Addiction Research, Nashville, TN 37232, USA; Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN 37232, USA
| | - Julie L Engers
- Vanderbilt Center for Neuroscience Drug Discovery, Nashville, TN 37232, USA
| | - Craig W Lindsley
- Department of Pharmacology, Vanderbilt University, Nashville, TN 37232, USA; Vanderbilt Center for Neuroscience Drug Discovery, Nashville, TN 37232, USA; Vanderbilt Center for Addiction Research, Nashville, TN 37232, USA; Department of Chemistry, Vanderbilt University, Nashville, TN 37232, USA
| | - Danny G Winder
- Department of Pharmacology, Vanderbilt University, Nashville, TN 37232, USA; Vanderbilt Center for Addiction Research, Nashville, TN 37232, USA; Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN 37232, USA
| | - P Jeffrey Conn
- Department of Pharmacology, Vanderbilt University, Nashville, TN 37232, USA; Vanderbilt Center for Neuroscience Drug Discovery, Nashville, TN 37232, USA; Vanderbilt Center for Addiction Research, Nashville, TN 37232, USA.
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166
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Metabolic effects induced by chronic stress in the amygdala of diabetic rats: A study based on ex vivo 1H NMR spectroscopy. Brain Res 2019; 1723:146377. [DOI: 10.1016/j.brainres.2019.146377] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 07/18/2019] [Accepted: 08/09/2019] [Indexed: 02/02/2023]
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167
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Abstract
OBJECTIVE In the context of the current opioid epidemic, there has been a renewed interest in the use of ketamine as an analgesic agent. METHODS We reviewed ketamine analgesia. RESULTS Ketamine is well-known as an antagonist for N-methyl-D-aspartate receptors. In addition, it can regulate the function of opioid receptors and sodium channels. Ketamine also increases signaling through α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors. These myriad of molecular and cellular mechanisms are responsible for a number of pharmacological functions including pain relief and mood regulation. Clinically, a number of studies have investigated the role of ketamine in the setting of acute and chronic pain, and there is evidence that ketamine can provide analgesia in a variety of pain syndromes. DISCUSSION In this review, we examined basic mechanisms of ketamine and its current clinical use and potential novel use in pain management.
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168
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Holz A, Mülsch F, Schwarz MK, Hollmann M, Döbrössy MD, Coenen VA, Bartos M, Normann C, Biber K, van Calker D, Serchov T. Enhanced mGlu5 Signaling in Excitatory Neurons Promotes Rapid Antidepressant Effects via AMPA Receptor Activation. Neuron 2019; 104:338-352.e7. [DOI: 10.1016/j.neuron.2019.07.011] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 05/14/2019] [Accepted: 07/12/2019] [Indexed: 12/14/2022]
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169
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Glucocorticoid receptor antagonism prevents microglia-mediated neuronal remodeling and behavioral despair following chronic unpredictable stress. Brain Behav Immun 2019; 81:329-340. [PMID: 31255679 DOI: 10.1016/j.bbi.2019.06.030] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 06/19/2019] [Accepted: 06/22/2019] [Indexed: 02/08/2023] Open
Abstract
Synaptic deficits and neuronal dystrophy in the prefrontal cortex (PFC) are linked to behavioral and cognitive symptoms in depressed individuals. Preclinical studies indicate that chronic stress causes synaptic deficits on pyramidal neurons in the PFC that contribute to behavioral and cognitive impairments. Our recent work shows that chronic stress provokes microglia-mediated neuronal remodeling via neuronal colony stimulating factor (CSF)-1 signaling, leading to synaptic deficits and depressive-like behaviors. Other reports indicate that elevated corticosterone causes pyramidal neuron atrophy and microglia activation in the medial PFC, implicating glucocorticoid signaling in microglia-mediated neuronal remodeling following chronic stress. In this study, male mice were exposed to chronic unpredictable stress (CUS) and received daily administration of glucocorticoid receptor antagonist RU486 (25 mg/kg, i.p.). As expected, CUS exposure caused adrenal hypertrophy and elevated plasma corticosterone levels. Glucocorticoid receptor blockade prevented behavioral despair and cognitive impairments following CUS. Moreover, RU486 administration diminished CUS-induced CSF1 signaling in the PFC and reduced markers of phagocytosis on purified microglia. Confocal imaging in Thy1-GFP(M) mice showed that CUS increased microglia-mediated neuronal remodeling, and RU486 administration attenuated microglial engulfment of neuronal elements and prevented dendritic spine density deficits on pyramidal neurons following CUS. These results demonstrate that chronic stress-induced glucocorticoid signaling promotes CSF1 signaling and microglia-mediated neuronal remodeling in the medial PFC, which contributes to development of behavioral despair and cognitive impairments. This study presents primary evidence that neuroendocrine responses engage neuron-microglia interactions in the PFC; further implicating microglia in stress-induced neuronal remodeling, PFC dysfunction, and associated behavioral consequences.
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170
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Sullivan L, Shaffer H, Hill C, Del Arco A. Time-dependent changes in cognitive flexibility performance during intermittent social stress: Relevance for motivation and reward-seeking behavior. Behav Brain Res 2019; 370:111972. [PMID: 31128165 DOI: 10.1016/j.bbr.2019.111972] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 05/06/2019] [Accepted: 05/21/2019] [Indexed: 12/21/2022]
Abstract
Repeated exposure to stress produces cognitive impairments that can lead to psychiatric disorders. How and when these cognitive impairments occur during repeated exposure to stress is not well understood. The present study investigates the time course effects of the exposure to intermittent episodes of social stress on cognitive flexibility performance. Male rats were trained to perform a cognitive flexibility (set-shifting) task. Then they were submitted to intermittent social defeat stress, which consisted of exposing animals to social defeat once every three days for ten days (four stress episodes). Set-shifting performance was evaluated before and in between social stress episodes, and up to ten days after the end of the stress protocol. Plasma levels of corticosterone after tail-pinch were also measured after the last set-shifting session. Intermittent exposure to social stress did not impair cognitive flexibility but produced short-and long-term changes in set-shifting performance. After the third social defeat episode, stressed animals required significantly more time to respond to cues (instrumental action) and to poke in the food-trough when no food pellet was delivered. These effects were reversed ten days after stress and suggest a decrease in motivation to pursue rewards. In contrast, stressed animals responded more accurately to light cues that predicted rewards. This effect, which emerged ten days after stress, suggests an increase in the reactivity to salient cues in the long-term. These time-dependent behavioral changes might help to understand the transition from social stress to stress-related disorders including drug abuse.
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Affiliation(s)
- Lauren Sullivan
- HSERM, School of Applied Sciences, University of Mississippi, Oxford, MS, USA
| | - Hannah Shaffer
- HSERM, School of Applied Sciences, University of Mississippi, Oxford, MS, USA
| | - Christopher Hill
- HSERM, School of Applied Sciences, University of Mississippi, Oxford, MS, USA
| | - Alberto Del Arco
- HSERM, School of Applied Sciences, University of Mississippi, Oxford, MS, USA; Department of Neurobiology and Anatomical Sciences, School of Medicine, University of Mississippi Medical Center, Jackson, MS, USA; Department of Biomolecular Sciences, School of Pharmacy, University of Mississippi, Oxford, MS, USA.
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171
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Martin JA, Werner CT, Mitra S, Zhong P, Wang ZJ, Gobira PH, Stewart AF, Zhang J, Erias K, Siemian JN, Hagarty D, Mueller LE, Neve RL, Li JX, Chandra R, Dietz KC, Lobo MK, Gancarz AM, Yan Z, Dietz DM. A novel role for the actin-binding protein drebrin in regulating opiate addiction. Nat Commun 2019; 10:4140. [PMID: 31515501 PMCID: PMC6742638 DOI: 10.1038/s41467-019-12122-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 08/22/2019] [Indexed: 12/14/2022] Open
Abstract
Persistent transcriptional and morphological events in the nucleus accumbens (NAc) and other brain reward regions contribute to the long-lasting behavioral adaptations that characterize drug addiction. Opiate exposure reduces the density of dendritic spines on medium spiny neurons of the NAc; however, the underlying transcriptional and cellular events mediating this remain unknown. We show that heroin self-administration negatively regulates the actin-binding protein drebrin in the NAc. Using virus-mediated gene transfer, we show that drebrin overexpression in the NAc is sufficient to decrease drug seeking and increase dendritic spine density, whereas drebrin knockdown potentiates these effects. We demonstrate that drebrin is transcriptionally repressed by the histone modifier HDAC2, which is relieved by pharmacological inhibition of histone deacetylases. Importantly, we demonstrate that heroin-induced adaptations occur only in the D1+ subset of medium spiny neurons. These findings establish an essential role for drebrin, and upstream transcriptional regulator HDAC2, in opiate-induced plasticity in the NAc. The underlying transcriptional and cellular events mediating the reduction of dendritic spines on medium spiny neurons of the nucleus accumbens (NAc) remains unknown. Here, authors demonstrate that heroin self-administration negatively regulates the actin-binding protein drebrin in the NAc, which is shown to be transcriptionally repressed by the histone modifier HDAC2, and that overexpression of drebrin is sufficient to decrease drug seeking and increase dendritic spine density
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Affiliation(s)
- Jennifer A Martin
- Department of Pharmacology and Toxicology, Program in Neuroscience, Research Institute on Addictions, The State University of New York at Buffalo, Buffalo, NY, 14214, USA
| | - Craig T Werner
- Department of Pharmacology and Toxicology, Program in Neuroscience, Research Institute on Addictions, The State University of New York at Buffalo, Buffalo, NY, 14214, USA
| | - Swarup Mitra
- Department of Pharmacology and Toxicology, Program in Neuroscience, Research Institute on Addictions, The State University of New York at Buffalo, Buffalo, NY, 14214, USA
| | - Ping Zhong
- Department of Physiology and Biophysics, The State University of New York at Buffalo, Buffalo, NY, 14214, USA
| | - Zi-Jun Wang
- Department of Pharmacology and Toxicology, Program in Neuroscience, Research Institute on Addictions, The State University of New York at Buffalo, Buffalo, NY, 14214, USA
| | - Pedro H Gobira
- Department of Pharmacology and Toxicology, Program in Neuroscience, Research Institute on Addictions, The State University of New York at Buffalo, Buffalo, NY, 14214, USA.,Department of Physics and Chemistry, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Andrew F Stewart
- Department of Pharmacology and Toxicology, Program in Neuroscience, Research Institute on Addictions, The State University of New York at Buffalo, Buffalo, NY, 14214, USA
| | - Jay Zhang
- Department of Pharmacology and Toxicology, Program in Neuroscience, Research Institute on Addictions, The State University of New York at Buffalo, Buffalo, NY, 14214, USA
| | - Kyra Erias
- Department of Pharmacology and Toxicology, Program in Neuroscience, Research Institute on Addictions, The State University of New York at Buffalo, Buffalo, NY, 14214, USA
| | - Justin N Siemian
- Department of Pharmacology and Toxicology, Program in Neuroscience, Research Institute on Addictions, The State University of New York at Buffalo, Buffalo, NY, 14214, USA
| | - Devin Hagarty
- Department of Psychology, California State University Bakersfield, Bakersfield, CA, 93311, USA
| | - Lauren E Mueller
- Department of Pharmacology and Toxicology, Program in Neuroscience, Research Institute on Addictions, The State University of New York at Buffalo, Buffalo, NY, 14214, USA
| | - Rachael L Neve
- Gene Delivery Technology Core, Massachusetts General Hospital, Cambridge, MA, 02139, USA
| | - Jun-Xu Li
- Department of Pharmacology and Toxicology, Program in Neuroscience, Research Institute on Addictions, The State University of New York at Buffalo, Buffalo, NY, 14214, USA
| | - Ramesh Chandra
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Karen C Dietz
- Department of Pharmacology and Toxicology, Program in Neuroscience, Research Institute on Addictions, The State University of New York at Buffalo, Buffalo, NY, 14214, USA
| | - Mary Kay Lobo
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Amy M Gancarz
- Department of Psychology, California State University Bakersfield, Bakersfield, CA, 93311, USA
| | - Zhen Yan
- Department of Physiology and Biophysics, The State University of New York at Buffalo, Buffalo, NY, 14214, USA
| | - David M Dietz
- Department of Pharmacology and Toxicology, Program in Neuroscience, Research Institute on Addictions, The State University of New York at Buffalo, Buffalo, NY, 14214, USA. .,Department of Psychology, The State University of New York at Buffalo, Buffalo, NY, 14214, USA.
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172
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Esquivel-Rendón E, Vargas-Mireles J, Cuevas-Olguín R, Miranda-Morales M, Acosta-Mares P, García-Oscos F, Pineda JC, Salgado H, Rose-John S, Atzori M. Interleukin 6 Dependent Synaptic Plasticity in a Social Defeat-Susceptible Prefrontal Cortex Circuit. Neuroscience 2019; 414:280-296. [DOI: 10.1016/j.neuroscience.2019.07.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 06/08/2019] [Accepted: 07/01/2019] [Indexed: 12/29/2022]
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173
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Wang M, Ramasamy VS, Samidurai M, Jo J. Acute restraint stress reverses impaired LTP in the hippocampal CA1 region in mouse models of Alzheimer's disease. Sci Rep 2019; 9:10955. [PMID: 31358853 PMCID: PMC6662902 DOI: 10.1038/s41598-019-47452-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 07/17/2019] [Indexed: 11/13/2022] Open
Abstract
Acute stress facilitates long-term potentiation (LTP) in the mouse hippocampus by modulating glucocorticoid receptors and ion channels. Here, we analysed whether this occurs in mouse models of Alzheimer’s disease (AD) with impaired LTP induction. We found that a brief 30 min restraint stress protocol reversed the impaired LTP assessed with field excitatory postsynaptic potential recordings at cornu ammonis 3-1 (CA3-CA1) synapses in both Tg2576 and 5XFAD mice. This effect was accompanied by increased phosphorylation and surface expression of glutamate A1 (GluA1) -containing α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors (AMPARs). Moreover, enhanced LTP induction and GluA1 phosphorylation were sustained up to 4 h after the stress. Treatment with 200 nM dexamethasone produced similar effects in the hippocampi of these mice, which supports the glucocorticoid receptor-mediated mechanism in these models. Collectively, our results demonstrated an alleviation of impaired LTP and synaptic plasticity in the hippocampal CA1 region following acute stress in the AD mouse models.
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Affiliation(s)
- Ming Wang
- NeuroMedical Convergence Lab, Biomedical Research Institute, Chonnam National University Hospital, Jebong-ro, Gwangju, 501-757, Republic of Korea.,Department of Biomedical Sciences, BK21 PLUS Center for Creative Biomedical Scientists at Chonnam National University, Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju, 501-757, South Korea
| | - Vijay Sankar Ramasamy
- NeuroMedical Convergence Lab, Biomedical Research Institute, Chonnam National University Hospital, Jebong-ro, Gwangju, 501-757, Republic of Korea.,Department of Biomedical Sciences, BK21 PLUS Center for Creative Biomedical Scientists at Chonnam National University, Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju, 501-757, South Korea
| | - Manikandan Samidurai
- NeuroMedical Convergence Lab, Biomedical Research Institute, Chonnam National University Hospital, Jebong-ro, Gwangju, 501-757, Republic of Korea.,Department of Biomedical Sciences, BK21 PLUS Center for Creative Biomedical Scientists at Chonnam National University, Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju, 501-757, South Korea
| | - Jihoon Jo
- NeuroMedical Convergence Lab, Biomedical Research Institute, Chonnam National University Hospital, Jebong-ro, Gwangju, 501-757, Republic of Korea. .,Department of Biomedical Sciences, BK21 PLUS Center for Creative Biomedical Scientists at Chonnam National University, Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju, 501-757, South Korea. .,Department of Neurology, Chonnam National University Medical School, Gwangju, 501-757, Republic of Korea.
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174
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Bertilsson J, Niehorster DC, Fredriksson PJ, Dahl M, Granér S, Fredriksson O, Mårtensson JM, Magnusson M, Fransson PA, Nyström M. Stress Levels Escalate When Repeatedly Performing Tasks Involving Threats. Front Psychol 2019; 10:1562. [PMID: 31333556 PMCID: PMC6621421 DOI: 10.3389/fpsyg.2019.01562] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 06/20/2019] [Indexed: 01/01/2023] Open
Abstract
Police work may include performing repeated tasks under the influence of psychological stress, which can affect perceptual, cognitive and motor performance. However, it is largely unknown how repeatedly performing stressful tasks physically affect police officers in terms of heart rate and pupil diameter properties. Psychological stress is commonly assessed by monitoring the changes in these biomarkers. Heart rate and pupil diameter was measured in 12 male police officers when performing a sequence of four stressful tasks, each lasting between 20 and 130 s. The participants were first placed in a dimly illuminated anteroom before allowed to enter a brightly lit room where a scenario was played out. After each task was performed, the participants returned to the anteroom for about 30 s before performing the next sequential task. Performing a repeated sequence of stressful tasks caused a significant increase in heart rate (p = 0.005). The heart rate started to increase already before entering the scenario room and was significantly larger just after starting the task than just before starting the task (p < 0.001). This pattern was more marked during the first tasks (p < 0.001). Issuance of a verbal “abort” command which terminated the tasks led to a significant increase of heart rate (p = 0.002), especially when performing the first tasks (p = 0.002). The pupil diameter changed significantly during the repeated tasks during all phases but in a complex pattern where the pupil diameter reached a minimum during task 2 followed by an increase during tasks 3 and 4 (p ≤ 0.020). During the initial tasks, the pupil size (p = 0.014) increased significantly. The results suggest that being repeatedly exposed to stressful tasks can produce in itself an escalation of psychological stress, this even prior to being exposed to the task. However, the characteristics of both the heart rate and pupil diameter were complex, thus, the findings highlight the importance of studying the effects and dynamics of different stress-generating factors. Monitoring heart rate was found useful to screen for stress responses, and thus, to be a vehicle for indication if and when rotation of deployed personnel is necessary to avoid sustained high stress exposures.
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Affiliation(s)
- Johan Bertilsson
- Police Region South, Swedish Police Authority, Malmö, Sweden.,Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Diederick C Niehorster
- Lund University Humanities Lab, Lund, Sweden.,Department of Psychology, Lund University, Lund, Sweden.,Lund University Cognitive Science, Lund University, Lund, Sweden
| | | | - Mats Dahl
- Department of Psychology, Lund University, Lund, Sweden
| | - Simon Granér
- Department of Psychology, Lund University, Lund, Sweden
| | - Ola Fredriksson
- Police Region South, Swedish Police Authority, Malmö, Sweden
| | | | - Måns Magnusson
- Department of Clinical Sciences, Lund University, Lund, Sweden
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175
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Stadin M, Nordin M, Broström A, Magnusson Hanson LL, Westerlund H, Fransson EI. Repeated exposure to high ICT demands at work, and development of suboptimal self-rated health: findings from a 4-year follow-up of the SLOSH study. Int Arch Occup Environ Health 2019; 92:717-728. [PMID: 30684000 PMCID: PMC6556157 DOI: 10.1007/s00420-019-01407-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 01/14/2019] [Indexed: 10/31/2022]
Abstract
PURPOSE The knowledge about the association between Information and Communication Technology (ICT) demands at work and self-rated health (SRH) is insufficient. The aim of this study was to examine the association between repeated exposure to high ICT demands at work, and risk of suboptimal SRH, and to determine modifications by sex or socioeconomic position (SEP). METHODS A prospective design was used, including repeated measurement of ICT demands at work, measured 2 years apart. SRH was measured at baseline and at follow-up after 4 years. The data were derived from the Swedish Longitudinal Occupational Survey of Health (SLOSH), including 4468 gainfully employees (1941 men, 2527 women) with good SRH at baseline. RESULTS In the total study sample, repeated exposure to high ICT demands at work was associated with suboptimal SRH at follow-up (OR 1.34 [CI 1.06-1.70]), adjusted for age, sex, SEP, health behaviours, BMI, job strain and social support. An interaction between ICT demands and sex was observed (p = 0.010). The risk was only present in men (OR 1.53 [CI 1.09-2.16]), and not in women (OR 1.17 [CI 0.85-1.62]). The risk of suboptimal SRH after consistently high ICT demands at work was most elevated in participants with high SEP (OR 1.68 [CI 1.02-2.79]), adjusted for age, sex, health behaviours, BMI and job strain. However, no significant interaction between ICT demands and SEP regarding SRH was observed. CONCLUSION Repeated exposure to high ICT demands at work was associated with suboptimal SRH at follow-up, and the association was modified by sex.
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Affiliation(s)
- Magdalena Stadin
- School of Health and Welfare, Jönköping University, P.O. Box 1026, 551 11, Jönköping, Sweden.
| | - Maria Nordin
- Stress Research Institute, Stockholm University, Stockholm, Sweden
- Department of Psychology, Umeå University, Umeå, Sweden
| | - Anders Broström
- School of Health and Welfare, Jönköping University, P.O. Box 1026, 551 11, Jönköping, Sweden
- Department of Clinical Neurophysiology, Linköping University Hospital, Linköping, Sweden
| | | | - Hugo Westerlund
- Stress Research Institute, Stockholm University, Stockholm, Sweden
| | - Eleonor I Fransson
- School of Health and Welfare, Jönköping University, P.O. Box 1026, 551 11, Jönköping, Sweden
- Stress Research Institute, Stockholm University, Stockholm, Sweden
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176
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Iguchi R, Tanaka S, Okabe S. Neonatal social isolation increases the proportion of the immature spines in the layer 2/3 pyramidal neurons of the somatosensory cortex. Neurosci Res 2019; 154:27-34. [PMID: 31226269 DOI: 10.1016/j.neures.2019.05.004] [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: 01/20/2019] [Revised: 05/17/2019] [Accepted: 05/20/2019] [Indexed: 11/29/2022]
Abstract
Social isolation during the juvenile period is postulated to leave specific sequelae, such as attention deficits and emotion recognition. Miswiring of the cortical neuronal circuit during postnatal development may underlie such behavioral impairments, but the details of the circuit-level impairment associated with social isolation have not yet been clarified. In this study, we evaluated the possibility that environmental factors may induce alternation in spine characteristics and dynamics. We isolated mice from the mother and siblings from postnatal day 7 to 11 for 6 h per day. Both dynamics and structural properties of spines in the layer 2/3 pyramidal neurons of the somatosensory cortex were measured at postnatal 3 weeks by in vivo two-photon microscopy. We found decrease in the ratio of PSD-95-positive dendritic spines in the mice after social isolation. These mice did not show alteration in spine dynamics. Those results suggest that the neonatal social isolation results in less mature spines, with normal rate of their turnover, which is distinct from spine phenotype seen in multiple models of autism spectrum disorders.
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Affiliation(s)
- Risa Iguchi
- Department of Cellular Neurobiology Graduate School of Medicine, University of Tokyo, Tokyo, 113-0033 Japan
| | - Shinji Tanaka
- Department of Cellular Neurobiology Graduate School of Medicine, University of Tokyo, Tokyo, 113-0033 Japan
| | - Shigeo Okabe
- Department of Cellular Neurobiology Graduate School of Medicine, University of Tokyo, Tokyo, 113-0033 Japan.
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177
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Qin L, Ma K, Yan Z. Chemogenetic Activation of Prefrontal Cortex in Shank3-Deficient Mice Ameliorates Social Deficits, NMDAR Hypofunction, and Sgk2 Downregulation. iScience 2019; 17:24-35. [PMID: 31247448 PMCID: PMC6599088 DOI: 10.1016/j.isci.2019.06.014] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 02/21/2019] [Accepted: 06/06/2019] [Indexed: 12/15/2022] Open
Abstract
Haploinsufficiency of the SHANK3 gene is causally linked to autism spectrum disorders (ASDs) in human genetic studies. Here we found that chemogenetic activation of pyramidal neurons in the prefrontal cortex (PFC) of Shank3-deficient mice with the hM3D (Gq) DREADD restored social preference behaviors and elevated glutamatergic synaptic function in PFC. Moreover, the expression of Sgk2 (serum- and glucocorticoid-inducible kinase 2), a member of the Sgk family, which plays a key role in regulating the membrane trafficking of glutamate receptors, was diminished by Shank3 deficiency and rescued by Gq DREADD activation of PFC. Blocking Sgk function in Shank3-deficient mice prevented Gq DREADD from rescuing social and synaptic deficits, whereas blocking Sgk function in wild-type mice led to the attenuation of PFC glutamatergic signaling and the induction of autism-like social deficits. These results have provided a potential circuit intervention and molecular target for autism treatment.
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Affiliation(s)
- Luye Qin
- Department of Physiology and Biophysics, State University of New York at Buffalo, School of Medicine and Biomedical Sciences, Buffalo, NY 14214, USA
| | - Kaijie Ma
- Department of Physiology and Biophysics, State University of New York at Buffalo, School of Medicine and Biomedical Sciences, Buffalo, NY 14214, USA
| | - Zhen Yan
- Department of Physiology and Biophysics, State University of New York at Buffalo, School of Medicine and Biomedical Sciences, Buffalo, NY 14214, USA.
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178
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Persistence of learning-induced synapses depends on neurotrophic priming of glucocorticoid receptors. Proc Natl Acad Sci U S A 2019; 116:13097-13106. [PMID: 31182610 PMCID: PMC6601006 DOI: 10.1073/pnas.1903203116] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Signal transduction upon activation of receptor tyrosine kinases by neurotrophins and nuclear receptors by glucocorticoids is essential for homeostasis. Phosphorylation (PO4) is one way these receptors communicate with one another to support homeostatic reactions in learning and memory. Using a newly developed glucocorticoid receptor (GR)-PO4–deficient knock-in mouse, we show that consolidation of learning-induced neuroplasticity depends on both GR-PO4 and neurotrophic signaling. Cross-talk between these pathways affects experience-dependent neuroplasticity and behavior, extending previous implications of neurotrophic priming of glucocorticoid response for adaptive plasticity to chronic stress and antidepressant response. Therefore, a disruption of cross-talk between these pathways by, for example, the misalignment of circadian glucocorticoid release and experience-dependent neurotrophic signaling may contribute to the pathophysiology of stress-related disorders. Stress can either promote or impair learning and memory. Such opposing effects depend on whether synapses persist or decay after learning. Maintenance of new synapses formed at the time of learning upon neuronal network activation depends on the stress hormone-activated glucocorticoid receptor (GR) and neurotrophic factor release. Whether and how concurrent GR and neurotrophin signaling integrate to modulate synaptic plasticity and learning is not fully understood. Here, we show that deletion of the neurotrophin brain-derived neurotrophic factor (BDNF)–dependent GR-phosphorylation (PO4) sites impairs long-term memory retention and maintenance of newly formed postsynaptic dendritic spines in the mouse cortex after motor skills training. Chronic stress and the BDNF polymorphism Val66Met disrupt the BDNF-dependent GR-PO4 pathway necessary for preserving training-induced spines and previously acquired memories. Conversely, enrichment living promotes spine formation but fails to salvage training-related spines in mice lacking BDNF-dependent GR-PO4 sites, suggesting it is essential for spine consolidation and memory retention. Mechanistically, spine maturation and persistence in the motor cortex depend on synaptic mobilization of the glutamate receptor subunit A1 (GluA1) mediated by GR-PO4. Together, these findings indicate that regulation of GR-PO4 via activity-dependent BDNF signaling is important for the formation and maintenance of learning-dependent synapses. They also define a signaling mechanism underlying these effects.
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179
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Joffe ME, Santiago CI, Engers JL, Lindsley CW, Conn PJ. Metabotropic glutamate receptor subtype 3 gates acute stress-induced dysregulation of amygdalo-cortical function. Mol Psychiatry 2019; 24:916-927. [PMID: 29269844 PMCID: PMC6013320 DOI: 10.1038/s41380-017-0015-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 10/08/2017] [Accepted: 11/01/2017] [Indexed: 11/09/2022]
Abstract
Stress can precipitate or worsen symptoms of many psychiatric disorders by dysregulating glutamatergic function within the prefrontal cortex (PFC). Previous studies suggest that antagonists of group II metabotropic glutamate (mGlu) receptors (mGlu2 and mGlu3) reduce stress-induced anhedonia through actions in the PFC, but the mechanisms by which these receptors act are not known. We now report that activation of mGlu3 induces long-term depression (LTD) of excitatory transmission in the PFC at inputs from the basolateral amygdala. Our data suggest mGlu3-LTD is mediated by postsynaptic AMPAR internalization in PFC pyramidal cells, and we observed a profound impairment in mGlu3-LTD following a single, 20-min restraint stress exposure. Finally, blocking mGlu3 activation in vivo prevented the stress-induced maladaptive changes to amydalo-cortical physiology and motivated behavior. These data demonstrate that mGlu3 mediates stress-induced physiological and behavioral impairments and further support the potential for mGlu3 modulation as a treatment for stress-related psychiatric disorders.
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Affiliation(s)
- Max E. Joffe
- Department of Pharmacology, Vanderbilt University, Nashville, TN, 37232, USA,Vanderbilt Center for Neuroscience Drug Discovery, Nashville, TN, 37232, USA
| | - Chiaki I. Santiago
- Vanderbilt Center for Neuroscience Drug Discovery, Nashville, TN, 37232, USA,Vanderbilt University, Nashville, TN, 37232, USA
| | - Julie L. Engers
- Vanderbilt Center for Neuroscience Drug Discovery, Nashville, TN, 37232, USA
| | - Craig W. Lindsley
- Department of Pharmacology, Vanderbilt University, Nashville, TN, 37232, USA,Vanderbilt Center for Neuroscience Drug Discovery, Nashville, TN, 37232, USA,Department of Chemistry, Vanderbilt University, Nashville, TN, 37232, USA
| | - P. Jeffrey Conn
- Department of Pharmacology, Vanderbilt University, Nashville, TN, 37232, USA,Vanderbilt Center for Neuroscience Drug Discovery, Nashville, TN, 37232, USA,Correspondence to: P. Jeffrey Conn, Ph.D., Lee E. Limbird Professor of Pharmacology, Director, Vanderbilt Center for Neuroscience Drug Discovery, Vanderbilt University Medical Center, 1205 Light Hall Nashville, TN 37232-0697, Tel. (615) 936-2478, Fax. (615) 343-3088,
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180
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Moradi-Kor N, Ghanbari A, Rashidipour H, Yousefi B, Bandegi AR, Rashidy-Pour A. Beneficial effects of Spirulina platensis, voluntary exercise and environmental enrichment against adolescent stress induced deficits in cognitive functions, hippocampal BDNF and morphological remolding in adult female rats. Horm Behav 2019; 112:20-31. [PMID: 30917909 DOI: 10.1016/j.yhbeh.2019.03.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 03/16/2019] [Accepted: 03/22/2019] [Indexed: 11/21/2022]
Abstract
Chronic exposure to stress during adolescent period has been demonstrated to impair cognitive functions and the dendritic morphology of pyramidal neurons in the rat hippocampal CA3 area. The present study investigated the combined protective effects of Spirulina platensis (SP), a supplement made from blue-green algae with neuroprotective properties, voluntary exercise (EX) and environmental enrichment (EE) against cognitive deficits, alternations in hippocampal BDNF levels, and abnormal neuronal remodeling in adult female rats (PND 60) induced by exposure to chronic restraint stress during adolescent period (PND 30-40). Rats were exposed to restraint stress (2 h/day for 10 days, PND 30-40). Then, the animals were subjected to treatment with SP (200 mg/kg/day), EX, EE and the combined treatments (SP + EX, and SP + EE) between PND 41 and 55 of age. Following the interventions, spatial learning and memory, passive avoidance performance, hippocampal dendritic morphology and BDNF levels were assessed. Results showed that plasma corticosterone levels increased at PND 40 and remained elevated at PND 55 and 70 in the stressed rats. Stressed rats showed deficits in spatial learning and memory and passive avoidance performance, decreased BDNF levels in the hippocampus, and reduced apical dendritic length and branch points of the CA3 pyramidal neurons. These deficits were alleviated by the SP, EX and EE, and the combined treatments, which accompanied with a decline in serum corticosterone in stressed animals. Some treatments even enhanced cognitive functions, and BDNF levels and neuroanatomical remodeling in the hippocampus of non-stressed animals. Our findings provide important evidences that physical activity, exposure to EE, and the SP treatment during adolescent period can protect against adolescent stress induced behavioral, biochemical and neuroanatomical impairments in adulthood.
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MESH Headings
- Animals
- Animals, Newborn
- Avoidance Learning/drug effects
- Avoidance Learning/physiology
- Brain-Derived Neurotrophic Factor/metabolism
- Cell Extracts/pharmacology
- Cognition/drug effects
- Cognition/physiology
- Cognition Disorders/etiology
- Cognition Disorders/pathology
- Cognition Disorders/physiopathology
- Cognition Disorders/prevention & control
- Conditioning, Psychological/drug effects
- Conditioning, Psychological/physiology
- Female
- Hippocampus/drug effects
- Hippocampus/metabolism
- Hippocampus/pathology
- Hippocampus/physiopathology
- Memory/drug effects
- Memory/physiology
- Neuronal Plasticity/drug effects
- Physical Conditioning, Animal/physiology
- Rats
- Rats, Wistar
- Restraint, Physical/physiology
- Restraint, Physical/psychology
- Sexual Maturation/drug effects
- Sexual Maturation/physiology
- Social Environment
- Spatial Learning/drug effects
- Spirulina/chemistry
- Stress, Psychological/complications
- Stress, Psychological/metabolism
- Stress, Psychological/pathology
- Stress, Psychological/psychology
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Affiliation(s)
- Nasroallah Moradi-Kor
- Student Research Committee, Semnan University of Medical Sciences, Semnan, Iran; Laboratory of Learning and Memory, Research Center of Physiology, Semnan University of Medical Sciences, Semnan, Iran
| | - Ali Ghanbari
- Laboratory of Learning and Memory, Research Center of Physiology, Semnan University of Medical Sciences, Semnan, Iran
| | - Hadi Rashidipour
- School of Veterinary Medicine, Islamic Azad University, Garmsar Branch, Garmsar, Iran
| | - Behpour Yousefi
- Department of Anatomical Sciences, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Ahmad Reza Bandegi
- Laboratory of Endocrine Research, Research Center of Physiology, Semnan University of Medical Sciences, Semnan, Iran
| | - Ali Rashidy-Pour
- Laboratory of Learning and Memory, Research Center of Physiology, Semnan University of Medical Sciences, Semnan, Iran; Department of Physiology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran.
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181
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Lüscher B, Möhler H. Brexanolone, a neurosteroid antidepressant, vindicates the GABAergic deficit hypothesis of depression and may foster resilience. F1000Res 2019; 8. [PMID: 31275559 PMCID: PMC6544078 DOI: 10.12688/f1000research.18758.1] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/22/2019] [Indexed: 12/18/2022] Open
Abstract
The GABAergic deficit hypothesis of depression states that a deficit of GABAergic transmission in defined neural circuits is causal for depression. Conversely, an enhancement of GABA transmission, including that triggered by selective serotonin reuptake inhibitors or ketamine, has antidepressant effects. Brexanolone, an intravenous formulation of the endogenous neurosteroid allopregnanolone, showed clinically significant antidepressant activity in postpartum depression. By allosterically enhancing GABA
A receptor function, the antidepressant activity of allopregnanolone is attributed to an increase in GABAergic inhibition. In addition, allopregnanolone may stabilize normal mood by decreasing the activity of stress-responsive dentate granule cells and thereby sustain resilience behavior. Therefore, allopregnanolone may augment and extend its antidepressant activity by fostering resilience. The recent structural resolution of the neurosteroid binding domain of GABA
A receptors will expedite the development of more selective ligands as a potential new class of central nervous system drugs.
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Affiliation(s)
- Bernhard Lüscher
- Department of Biology and Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA, 16802, USA.,Center for Molecular Investigation of Neurological Disorders, The Huck Institutes for the Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Hanns Möhler
- Institute of Pharmacology and Neuroscience Center, University of Zurich, Zurich, 8057, Switzerland.,Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology (ETH), Zurich, 8057, Switzerland
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182
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Van Dyke AM, Francis TC, Chen H, Bailey AM, Thompson SM. RETRACTED: Chronic fluoxetine treatment in vivo enhances excitatory synaptic transmission in the hippocampus. Neuropharmacology 2019; 150:38-45. [PMID: 30851310 PMCID: PMC6475886 DOI: 10.1016/j.neuropharm.2019.03.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 02/07/2019] [Accepted: 03/02/2019] [Indexed: 12/17/2022]
Abstract
This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/our-business/policies/article-withdrawal). This article has been retracted at the request of the Authors. After publication, Scott M. Thompson found significant concerns about the data and duly notified The University of Maryland. The University of Maryland conducted an internal investigation which confirmed that the article was compromised. Namely in Figure 2B, the Investigation Committee determined that the western blots used to create the figure were not the ones used for the quantification and concluded that the figure was falsified to fit the hypothesis. In Figure 2C and 2D, the Investigation Committee determined that the densitometry data (pCaMKII, pS831, CamKII and GluA1) used to create the histogram were falsified to fit the hypothesis.
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Affiliation(s)
- Adam M Van Dyke
- Department of Physiology, University of Maryland School of Medicine, 655 West Baltimore Street, Baltimore, MD, 21201, USA; Training Programs in Neuroscience, University of Maryland School of Medicine, 655 West Baltimore Street, Baltimore, MD, 21201, USA; Membrane Biology, University of Maryland School of Medicine, 655 West Baltimore Street, Baltimore, MD, 21201, USA
| | - T Chase Francis
- Department of Physiology, University of Maryland School of Medicine, 655 West Baltimore Street, Baltimore, MD, 21201, USA; Training Programs in Neuroscience, University of Maryland School of Medicine, 655 West Baltimore Street, Baltimore, MD, 21201, USA
| | - Haiwen Chen
- Department of Physiology, University of Maryland School of Medicine, 655 West Baltimore Street, Baltimore, MD, 21201, USA; Training Programs in Neuroscience, University of Maryland School of Medicine, 655 West Baltimore Street, Baltimore, MD, 21201, USA; Membrane Biology, University of Maryland School of Medicine, 655 West Baltimore Street, Baltimore, MD, 21201, USA; Medical Scientist Training Program, University of Maryland School of Medicine, 655 West Baltimore Street, Baltimore, MD, 21201, USA
| | - Aileen M Bailey
- Department of Psychology, Saint Mary's College of Maryland, St. Mary's City, MD, USA
| | - Scott M Thompson
- Department of Physiology, University of Maryland School of Medicine, 655 West Baltimore Street, Baltimore, MD, 21201, USA.
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183
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Moda-Sava RN, Murdock MH, Parekh PK, Fetcho RN, Huang BS, Huynh TN, Witztum J, Shaver DC, Rosenthal DL, Alway EJ, Lopez K, Meng Y, Nellissen L, Grosenick L, Milner TA, Deisseroth K, Bito H, Kasai H, Liston C. Sustained rescue of prefrontal circuit dysfunction by antidepressant-induced spine formation. SCIENCE (NEW YORK, N.Y.) 2019; 364:364/6436/eaat8078. [PMID: 30975859 DOI: 10.1126/science.aat8078] [Citation(s) in RCA: 332] [Impact Index Per Article: 66.4] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 02/18/2019] [Indexed: 12/11/2022]
Abstract
The neurobiological mechanisms underlying the induction and remission of depressive episodes over time are not well understood. Through repeated longitudinal imaging of medial prefrontal microcircuits in the living brain, we found that prefrontal spinogenesis plays a critical role in sustaining specific antidepressant behavioral effects and maintaining long-term behavioral remission. Depression-related behavior was associated with targeted, branch-specific elimination of postsynaptic dendritic spines on prefrontal projection neurons. Antidepressant-dose ketamine reversed these effects by selectively rescuing eliminated spines and restoring coordinated activity in multicellular ensembles that predict motivated escape behavior. Prefrontal spinogenesis was required for the long-term maintenance of antidepressant effects on motivated escape behavior but not for their initial induction.
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Affiliation(s)
- R N Moda-Sava
- Brain and Mind Research Institute, Department of Psychiatry, and Sackler Institute for Developmental Psychobiology, Weill Cornell Medicine, New York, NY 10021, USA
| | - M H Murdock
- Brain and Mind Research Institute, Department of Psychiatry, and Sackler Institute for Developmental Psychobiology, Weill Cornell Medicine, New York, NY 10021, USA
| | - P K Parekh
- Brain and Mind Research Institute, Department of Psychiatry, and Sackler Institute for Developmental Psychobiology, Weill Cornell Medicine, New York, NY 10021, USA
| | - R N Fetcho
- Brain and Mind Research Institute, Department of Psychiatry, and Sackler Institute for Developmental Psychobiology, Weill Cornell Medicine, New York, NY 10021, USA
| | - B S Huang
- Brain and Mind Research Institute, Department of Psychiatry, and Sackler Institute for Developmental Psychobiology, Weill Cornell Medicine, New York, NY 10021, USA
| | - T N Huynh
- Brain and Mind Research Institute, Department of Psychiatry, and Sackler Institute for Developmental Psychobiology, Weill Cornell Medicine, New York, NY 10021, USA
| | - J Witztum
- Brain and Mind Research Institute, Department of Psychiatry, and Sackler Institute for Developmental Psychobiology, Weill Cornell Medicine, New York, NY 10021, USA
| | - D C Shaver
- Brain and Mind Research Institute, Department of Psychiatry, and Sackler Institute for Developmental Psychobiology, Weill Cornell Medicine, New York, NY 10021, USA
| | - D L Rosenthal
- Brain and Mind Research Institute, Department of Psychiatry, and Sackler Institute for Developmental Psychobiology, Weill Cornell Medicine, New York, NY 10021, USA
| | - E J Alway
- Brain and Mind Research Institute, Department of Psychiatry, and Sackler Institute for Developmental Psychobiology, Weill Cornell Medicine, New York, NY 10021, USA
| | - K Lopez
- Brain and Mind Research Institute, Department of Psychiatry, and Sackler Institute for Developmental Psychobiology, Weill Cornell Medicine, New York, NY 10021, USA
| | - Y Meng
- Brain and Mind Research Institute, Department of Psychiatry, and Sackler Institute for Developmental Psychobiology, Weill Cornell Medicine, New York, NY 10021, USA
| | - L Nellissen
- Brain and Mind Research Institute, Department of Psychiatry, and Sackler Institute for Developmental Psychobiology, Weill Cornell Medicine, New York, NY 10021, USA
| | - L Grosenick
- Brain and Mind Research Institute, Department of Psychiatry, and Sackler Institute for Developmental Psychobiology, Weill Cornell Medicine, New York, NY 10021, USA.,Departments of Bioengineering and of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA 94305, USA
| | - T A Milner
- Brain and Mind Research Institute, Department of Psychiatry, and Sackler Institute for Developmental Psychobiology, Weill Cornell Medicine, New York, NY 10021, USA
| | - K Deisseroth
- Departments of Bioengineering and of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA 94305, USA
| | - H Bito
- Department of Neurochemistry, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - H Kasai
- Laboratory of Structural Physiology, Center for Disease Biology and Integrative Medicine, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan.,International Research Center for Neurointelligence (WPI-IRCN), UTIAS, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - C Liston
- Brain and Mind Research Institute, Department of Psychiatry, and Sackler Institute for Developmental Psychobiology, Weill Cornell Medicine, New York, NY 10021, USA.
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184
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Yamamuro K, Yoshino H, Ogawa Y, Makinodan M, Toritsuka M, Yamashita M, Corfas G, Kishimoto T. Social Isolation During the Critical Period Reduces Synaptic and Intrinsic Excitability of a Subtype of Pyramidal Cell in Mouse Prefrontal Cortex. Cereb Cortex 2019; 28:998-1010. [PMID: 28158488 DOI: 10.1093/cercor/bhx010] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Indexed: 12/11/2022] Open
Abstract
Juvenile social experience is crucial for the functional development of forebrain regions, especially the prefrontal cortex (PFC). We previously reported that social isolation for 2 weeks after weaning induces prefrontal cortex dysfunction and hypomyelination. However, the effect of social isolation on physiological properties of PFC neuronal circuit remained unknown. Since hypomyelination due to isolation is prominent in deep-layer of medial PFC (mPFC), we focused on 2 types of Layer-5 pyramidal cells in the mPFC: prominent h-current (PH) cells and nonprominent h-current (non-PH) cells. We found that a 2-week social isolation after weaning leads to a specific deterioration in action potential properties and reduction in excitatory synaptic inputs in PH cells. The effects of social isolation on PH cells, which involve reduction in functional glutamatergic synapses and α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid/N-methyl-d-aspartate charge ratio, are specific to the 2 weeks after weaning and to the mPFC. We conclude that juvenile social experience plays crucial roles in the functional development in a subtype of Layer-5 pyramidal cells in the mPFC. Since these neurons project to subcortical structures, a deficit in social experience during the critical period may result in immature neural circuitry between mPFC and subcortical targets.
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Affiliation(s)
- Kazuhiko Yamamuro
- Department of Psychiatry, Nara Medical University, Kashihara, Nara 634-8522, Japan
| | - Hiroki Yoshino
- Department of Psychiatry, Nara Medical University, Kashihara, Nara 634-8522, Japan
| | - Yoichi Ogawa
- Department of Physiology I, Nara Medical University, Kashihara, Nara 634-8522, Japan
| | - Manabu Makinodan
- Department of Psychiatry, Nara Medical University, Kashihara, Nara 634-8522, Japan
| | - Michihiro Toritsuka
- Department of Psychiatry, Nara Medical University, Kashihara, Nara 634-8522, Japan
| | - Masayuki Yamashita
- Center for Medical Science, International University of Health and Welfare, Ohtawara, Tochigi 324-8501, Japan
| | - Gabriel Corfas
- Department of Otolaryngology-Head and Neck Surgery, Kresge Hearing Research Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Toshifumi Kishimoto
- Department of Psychiatry, Nara Medical University, Kashihara, Nara 634-8522, Japan
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185
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Dominguez G, Henkous N, Prevot T, David V, Guillou JL, Belzung C, Mons N, Béracochéa D. Sustained corticosterone rise in the prefrontal cortex is a key factor for chronic stress-induced working memory deficits in mice. Neurobiol Stress 2019; 10:100161. [PMID: 31309134 PMCID: PMC6607320 DOI: 10.1016/j.ynstr.2019.100161] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 04/01/2019] [Accepted: 04/01/2019] [Indexed: 11/25/2022] Open
Abstract
Exposure to prolonged, unpredictable stress leads to glucocorticoids-mediated long-lasting neuroendocrine abnormalities associated with emotional and cognitive impairments. Excessive levels of serum glucocorticoids (cortisol in humans, corticosterone in rodents) contribute notably to deficits in working memory (WM), a task which heavily relies on functional interactions between the medial prefrontal cortex (PFC) and the dorsal hippocampus (dHPC). However, it is unknown whether stress-induced increases in plasma corticosterone mirror corticosterone levels in specific brain regions critical for WM. After a 6 week-UCMS exposure, C57BL/6 J male mice exhibited increased anxiety- and depressive-like behaviors when measured one week later and displayed WM impairments timely associated with increased plasma corticosterone response. In chronically stressed mice, basal phosphorylated/activated CREB (pCREB) was markedly increased in the PFC and the CA1 area of the dHPC and WM testing did not elicit any further increase in pCREB in the two regions. Using microdialysis samples from freely-moving mice, we found that WM testing co-occurred with a rapid and sustained increase in corticosterone response in the PFC while there was a late, non-significant rise of corticosterone in the dHPC. The results also show that non-stressed mice injected with corticosterone (2 mg/kg i.p.) before WM testing displayed behavioral and molecular alterations similar to those observed in stressed animals while a pre-WM testing metyrapone injection (35 mg/kg i.p.), a corticosterone synthesis inhibitor, prevented the effects of UCMS exposure. Overall, the abnormal regional increase of corticosterone concentrations mainly in the PFC emerges as a key factor of enduring WM dysfunctions in UCMS-treated animals.
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Affiliation(s)
- Gaelle Dominguez
- Université de Bordeaux, CNRS UMR 5287, 33615, Pessac, France.,Université François Rabelais, Inserm U930, Parc Grandmont, 37200, Tours, France
| | - Nadia Henkous
- Université de Bordeaux, CNRS UMR 5287, 33615, Pessac, France
| | - Thomas Prevot
- Université de Bordeaux, CNRS UMR 5287, 33615, Pessac, France
| | - Vincent David
- Université de Bordeaux, CNRS UMR 5287, 33615, Pessac, France
| | | | - Catherine Belzung
- Université François Rabelais, Inserm U930, Parc Grandmont, 37200, Tours, France
| | - Nicole Mons
- Université de Bordeaux, CNRS UMR 5287, 33615, Pessac, France
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186
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Tornese P, Sala N, Bonini D, Bonifacino T, La Via L, Milanese M, Treccani G, Seguini M, Ieraci A, Mingardi J, Nyengaard JR, Calza S, Bonanno G, Wegener G, Barbon A, Popoli M, Musazzi L. Chronic mild stress induces anhedonic behavior and changes in glutamate release, BDNF trafficking and dendrite morphology only in stress vulnerable rats. The rapid restorative action of ketamine. Neurobiol Stress 2019; 10:100160. [PMID: 31193464 PMCID: PMC6535630 DOI: 10.1016/j.ynstr.2019.100160] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 03/28/2019] [Accepted: 03/28/2019] [Indexed: 12/18/2022] Open
Abstract
Depression is a debilitating mental disease, characterized by persistent low mood and anhedonia. Stress represents a major environmental risk factor for depression; the complex interaction of stress with genetic factors results in different individual vulnerability or resilience to the disorder. Dysfunctions of the glutamate system have a primary role in depression. Clinical neuroimaging studies have consistently reported alterations in volume and connectivity of cortico-limbic areas, where glutamate neurons and synapses predominate. This is confirmed by preclinical studies in rodents, showing that repeated stress induces morphological and functional maladaptive changes in the same brain regions altered in humans. Confirming the key role of glutamatergic transmission in depression, compelling evidence has shown that the non-competitive NMDA receptor antagonist, ketamine, induces, at sub-anesthetic dose, rapid and sustained antidepressant response in both humans and rodents. We show here that the Chronic Mild Stress model of depression induces, only in stress-vulnerable rats, depressed-like anhedonic behavior, together with impairment of glutamate/GABA presynaptic release, BDNF mRNA trafficking in dendrites and dendritic morphology in hippocampus. Moreover, we show that a single administration of ketamine restores, in 24 h, normal behavior and most of the cellular/molecular maladaptive changes in vulnerable rats. Interestingly, ketamine treatment did not restore BDNF mRNA levels reduced by chronic stress but rescued dendritic trafficking of BDNF mRNA. The present results are consistent with a mechanism of ketamine involving rapid restoration of synaptic homeostasis, through re-equilibration of glutamate/GABA release and dendritic BDNF for synaptic translation and reversal of synaptic and circuitry impairment. Chronic mild stress (CMS) induces anhedonic behavior and maladaptive changes in the hippocampus (HPC) of vulnerable rats. CMS reduces basal and evoked release of glutamate in the HPC of vulnerable rats. SCMS reduces evoked release of GABA in the HPC of vulnerable rats. CMS reduces expression of BDNF mRNA and trafficking along dendrites in the HPC of vulnerable rats. CMS reduces length of apical dendrites in CA3 pyramidal neurons of vulnerable rats. Ketamine injection (10 mg/kg) restores in 24h anhedonic behavior and most maladaptive changes, except BDNF expression. The present results suggest that the antidepressant mechanism of ketamine involves restoration of synaptic homeostasis.
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Affiliation(s)
- Paolo Tornese
- Laboratory of Neuropsychopharmacology and Functional Neurogenomics, Dipartimento di Scienze Farmacologiche e Biomolecolari and Center of Excellence for Neurodegenerative Diseases, Università degli Studi di Milano, 20133, Milan, Italy
| | - Nathalie Sala
- Laboratory of Neuropsychopharmacology and Functional Neurogenomics, Dipartimento di Scienze Farmacologiche e Biomolecolari and Center of Excellence for Neurodegenerative Diseases, Università degli Studi di Milano, 20133, Milan, Italy
| | - Daniela Bonini
- Division of Biology and Genetics, Department of Molecular and Translational Medicine, University of Brescia, 25123, Brescia, Italy
| | - Tiziana Bonifacino
- Department of Pharmacy, Unit of Pharmacology and Toxicology and Center of Excellence for Biomedical Research, University of Genoa, 16148, Genova, Italy
| | - Luca La Via
- Division of Biology and Genetics, Department of Molecular and Translational Medicine, University of Brescia, 25123, Brescia, Italy
| | - Marco Milanese
- Department of Pharmacy, Unit of Pharmacology and Toxicology and Center of Excellence for Biomedical Research, University of Genoa, 16148, Genova, Italy
| | - Giulia Treccani
- Translational Neuropsychiatry Unit, Department of Clinical Medicine, Aarhus University, 8240, Risskov, Denmark
| | - Mara Seguini
- Laboratory of Neuropsychopharmacology and Functional Neurogenomics, Dipartimento di Scienze Farmacologiche e Biomolecolari and Center of Excellence for Neurodegenerative Diseases, Università degli Studi di Milano, 20133, Milan, Italy
| | - Alessandro Ieraci
- Laboratory of Neuropsychopharmacology and Functional Neurogenomics, Dipartimento di Scienze Farmacologiche e Biomolecolari and Center of Excellence for Neurodegenerative Diseases, Università degli Studi di Milano, 20133, Milan, Italy
| | - Jessica Mingardi
- Division of Biology and Genetics, Department of Molecular and Translational Medicine, University of Brescia, 25123, Brescia, Italy
| | - Jens R Nyengaard
- Core Centre for Molecular Morphology, Section for Stereology and Microscopy, Department of Clinical Medicine, Centre for Stochastic Geometry and Advanced Bioimaging, Aarhus University, 8000, Aarhus, Denmark
| | - Stefano Calza
- Unit of Biostatistics and Biomathematics, Department of Molecular and Translational Medicine, University of Brescia, 25123, Brescia, Italy
| | - Giambattista Bonanno
- Department of Pharmacy, Unit of Pharmacology and Toxicology and Center of Excellence for Biomedical Research, University of Genoa, 16148, Genova, Italy
| | - Gregers Wegener
- Translational Neuropsychiatry Unit, Department of Clinical Medicine, Aarhus University, 8240, Risskov, Denmark.,Pharmaceutical Research Centre of Excellence, School of Pharmacy, North-West University, 2520, Potchefstroom, South Africa
| | - Alessandro Barbon
- Division of Biology and Genetics, Department of Molecular and Translational Medicine, University of Brescia, 25123, Brescia, Italy
| | - Maurizio Popoli
- Laboratory of Neuropsychopharmacology and Functional Neurogenomics, Dipartimento di Scienze Farmacologiche e Biomolecolari and Center of Excellence for Neurodegenerative Diseases, Università degli Studi di Milano, 20133, Milan, Italy
| | - Laura Musazzi
- Laboratory of Neuropsychopharmacology and Functional Neurogenomics, Dipartimento di Scienze Farmacologiche e Biomolecolari and Center of Excellence for Neurodegenerative Diseases, Università degli Studi di Milano, 20133, Milan, Italy
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187
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Gobin C, Shallcross J, Schwendt M. Neurobiological substrates of persistent working memory deficits and cocaine-seeking in the prelimbic cortex of rats with a history of extended access to cocaine self-administration. Neurobiol Learn Mem 2019; 161:92-105. [PMID: 30946882 DOI: 10.1016/j.nlm.2019.03.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 02/21/2019] [Accepted: 03/26/2019] [Indexed: 01/16/2023]
Abstract
Cocaine use disorder (CUD) is associated with prefrontal cortex dysfunction and cognitive deficits that may contribute to persistent relapse susceptibility. As the relationship between cognitive deficits, cortical abnormalities and drug seeking is poorly understood, development of relevant animal models is of high clinical importance. Here, we used an animal model to characterize working memory and reversal learning in rats with a history of extended access cocaine self-administration and prolonged abstinence. We also investigated immediate and long-term functional changes within the prelimbic cortex (PrL) in relation to cognitive performance and drug-seeking. Adult male rats underwent 6 days of short-access (1 h/day) followed by 12 days of long-access (6 h/day) cocaine self-administration, or received passive saline infusions. Next, rats were tested in delayed match-to-sample (DMS) and (non)match-to-sample (NMS) tasks, and finally in a single context + cue relapse test on day 90 of abstinence. We found that a history of chronic cocaine self-administration impaired working memory, though sparing reversal learning, and that the components of these cognitive measures correlated with later drug-seeking. Further, we found that dysregulated metabolic activity and mGlu5 receptor signaling in the PrL of cocaine rats correlated with past working memory performance and/or drug-seeking, as indicated by the analysis of cytochrome oxidase reactivity, mGlu5 and Homer 1b/c protein expression, as well as Arc mRNA expression in mGlu5-positive cells. These findings advocate for a persistent post-cocaine PrL dysfunction, rooted in ineffective compensatory changes and manifested as impaired working memory performance and hyperreactivity to cocaine cues. Considering the possible interplay between the neural correlates underlying post-cocaine cognitive deficits and drug-seeking, cognitive function should be evaluated and considered when developing neurobiologically-based treatments of cocaine relapse.
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Affiliation(s)
- Christina Gobin
- Psychology Department, University of Florida, Gainesville, FL 32611, USA; Center for Addiction Research and Education (CARE) at University of Florida, USA
| | - John Shallcross
- Psychology Department, University of Florida, Gainesville, FL 32611, USA; Center for Addiction Research and Education (CARE) at University of Florida, USA
| | - Marek Schwendt
- Psychology Department, University of Florida, Gainesville, FL 32611, USA; Center for Addiction Research and Education (CARE) at University of Florida, USA.
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188
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Jiang C, Lin WJ, Labonté B, Tamminga CA, Turecki G, Nestler EJ, Russo SJ, Salton SR. VGF and its C-terminal peptide TLQP-62 in ventromedial prefrontal cortex regulate depression-related behaviors and the response to ketamine. Neuropsychopharmacology 2019; 44:971-981. [PMID: 30504797 PMCID: PMC6462025 DOI: 10.1038/s41386-018-0277-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 11/10/2018] [Indexed: 02/06/2023]
Abstract
Patients with major depressive disorder (MDD) often have structural and functional deficits in the ventromedial prefrontal cortex (vmPFC), but the underlying molecular pathways are incompletely understood. The neuropeptide precursor VGF (non-acronymic) plays a critical role in depression and antidepressant efficacy in hippocampus and nucleus accumbens, however its function in vmPFC has not been investigated. Here, we show that VGF levels were reduced in Brodmann area 25 (a portion of human vmPFC) of MDD patients and in mouse vmPFC following chronic restraint stress (CRS), and were increased by ketamine in mouse vmPFC. VGF overexpression in vmPFC prevented behavioral deficits induced by CRS, and VGF knockdown in vmPFC increased susceptibility to subchronic variable stress (SCVS) and reduced ketamine's antidepressant efficacy. Acute intra-vmPFC TLQP-62 infusion induced behavioral phenotypes that mimic those produced by antidepressant drug treatment. These antidepressant-like effects were sustained for 7 days and were abolished by local Bdnf gene ablation, or pretreatment with xestospongin C, an inhibitor of IP3-mediated Ca2+ release, or SKF96365, an inhibitor of store-operated and TRPC channel-mediated Ca2+ entry. In conclusion, VGF in the vmPFC regulates susceptibility to stress and the antidepressant response to ketamine. TLQP-62 infusion produces sustained antidepressant responses that require BDNF expression and calcium mobilization in vmPFC.
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Affiliation(s)
- Cheng Jiang
- 0000 0001 0670 2351grid.59734.3cDepartment of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY 10029 USA
| | - Wei-Jye Lin
- 0000 0001 0670 2351grid.59734.3cDepartment of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY 10029 USA ,0000 0001 2360 039Xgrid.12981.33RNA Biomedical Institute, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangdong, 510120 Guangzhou, China ,0000 0001 2360 039Xgrid.12981.33Guangdong Province Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-sen University, 74 Zhongshan 2nd Road, Guangdong, Guangzhou, China
| | - Benoit Labonté
- 0000 0001 0670 2351grid.59734.3cDepartment of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY 10029 USA ,0000 0004 1936 8390grid.23856.3aDepartment of Neuroscience and Psychiatry, Faculty of Medicine, Laval University, 2601 Chemin de la Canardière, Québec, QC G1J 2G3 Canada
| | - Carol A. Tamminga
- 0000 0000 9482 7121grid.267313.2Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX 75235 USA
| | - Gustavo Turecki
- 0000 0004 1936 8649grid.14709.3bDepartment of Psychiatry, McGill University, Montréal, Québec, Canada
| | - Eric J. Nestler
- 0000 0001 0670 2351grid.59734.3cDepartment of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY 10029 USA ,0000 0001 0670 2351grid.59734.3cFriedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029 USA
| | - Scott J. Russo
- 0000 0001 0670 2351grid.59734.3cDepartment of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY 10029 USA ,0000 0001 0670 2351grid.59734.3cFriedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029 USA
| | - Stephen R. Salton
- 0000 0001 0670 2351grid.59734.3cDepartment of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY 10029 USA ,0000 0001 0670 2351grid.59734.3cFriedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029 USA ,0000 0001 0670 2351grid.59734.3cDepartment of Geriatrics, Icahn School of Medicine at Mount Sinai, New York, NY 10029 USA
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189
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Wang L, Holland L, Fong R, Khokhar S, Fox AP, Xie Z. A pilot study showing that repeated exposure to stress produces alterations in subsequent responses to anesthetics in rats. PLoS One 2019; 14:e0214093. [PMID: 30908509 PMCID: PMC6433219 DOI: 10.1371/journal.pone.0214093] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 03/06/2019] [Indexed: 12/11/2022] Open
Abstract
The repeated use of a drug frequently leads to alterations in the response to that drug. We undertook this study to determine whether multiple exposures to the general anesthetic produced alterations in subsequent exposures to this anesthetic. For this study, adult male rats were anesthetized with 2.5% isoflurane for one hour. The rats were divided into 4 groups of 8 rats each. Groups 1-3 were transported between their homeroom and the anesthesia testing room and were handled in an identical manner weekly for a period of 12 weeks, but were anesthetized on different schedules. Group 1 was anesthetized weekly for 12 weeks, Group 2 on either a 3 or 4 week schedule and Group 3 was anesthetized a single time, at the end of the 12 week period. To receive anesthesia multiple times, animals were transported from their homeroom to the anesthesia location and handled repeatedly. We took into consideration of the frequency of anesthesia exposure and the stress involved. Rats in groups 2 and 3 were placed in the anesthesia chamber, with O2 but with no anesthetic, every week when they were not scheduled to receive anesthesia. In Group 4, rats were not transported or handled in any way and stayed in the home room for a period of 12 weeks. Rats in this group were anesthetized once, at the very end of the study. Recovery of the rat's righting reflex was used to assess the acceleration of recovery time from general anesthesia. Group 1 rats showed dramatically faster emergence from anesthesia after several rounds of anesthesia. Surprisingly, Groups 2 and 3 rats, treated in an identical manner as Group 1, but which were anesthetized on different schedules, also exhibited more rapid emergence from anesthesia, when compared to Group 4 rats, which were never handled or transported prior to a single anesthesia. These results suggest that the stress of transportation and handling altered responsiveness to anesthesia. Our results show that responsiveness to anesthetic agents can change over time outside of the normal developmental changes taking place in rats as they age.
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Affiliation(s)
- Lingzhi Wang
- Department of Anesthesia and Critical Care, The University of Chicago, Chicago, Illinois, United States of America
- Department of Anesthesia, the Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, P. R. China
| | - Lindsay Holland
- University of Michigan, College of Medicine, Ann Arbor, Michigan, United States of America
| | - Robert Fong
- Department of Anesthesia and Critical Care, The University of Chicago, Chicago, Illinois, United States of America
| | - Suhail Khokhar
- University of Illinois at Chicago, College of Medicine, Chicago, Illinois, United States of America
| | - Aaron P. Fox
- Department of Neurobiology, Pharmacology and Physiology, The University of Chicago, Chicago, Illinois, United States of America
| | - Zheng Xie
- Department of Anesthesia and Critical Care, The University of Chicago, Chicago, Illinois, United States of America
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190
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Leem YH, Park JS, Chang H, Park J, Kim HS. Exercise Prevents Memory Consolidation Defects Via Enhancing Prolactin Responsiveness of CA1 Neurons in Mice Under Chronic Stress. Mol Neurobiol 2019; 56:6609-6625. [DOI: 10.1007/s12035-019-1560-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 03/13/2019] [Indexed: 12/21/2022]
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191
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Zimmermann KS, Richardson R, Baker KD. Maturational Changes in Prefrontal and Amygdala Circuits in Adolescence: Implications for Understanding Fear Inhibition during a Vulnerable Period of Development. Brain Sci 2019; 9:E65. [PMID: 30889864 PMCID: PMC6468701 DOI: 10.3390/brainsci9030065] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 03/13/2019] [Accepted: 03/14/2019] [Indexed: 12/24/2022] Open
Abstract
Anxiety disorders that develop in adolescence represent a significant burden and are particularly challenging to treat, due in no small part to the high occurrence of relapse in this age group following exposure therapy. This pattern of persistent fear is preserved across species; relative to those younger and older, adolescents consistently show poorer extinction, a key process underpinning exposure therapy. This suggests that the neural processes underlying fear extinction are temporarily but profoundly compromised during adolescence. The formation, retrieval, and modification of fear- and extinction-associated memories are regulated by a forebrain network consisting of the prefrontal cortex (PFC), the amygdala, and the hippocampus. These regions undergo robust maturational changes in early life, with unique alterations in structure and function occurring throughout adolescence. In this review, we focus primarily on two of these regions-the PFC and the amygdala-and discuss how changes in plasticity, synaptic transmission, inhibition/excitation, and connectivity (including modulation by hippocampal afferents to the PFC) may contribute to transient deficits in extinction retention. We end with a brief consideration of how exposure to stress during this adolescent window of vulnerability can permanently disrupt neurodevelopment, leading to lasting impairments in pathways of emotional regulation.
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Affiliation(s)
- Kelsey S Zimmermann
- School of Psychology, University of New South Wales (UNSW), Sydney, NSW 2052, Australia.
| | - Rick Richardson
- School of Psychology, University of New South Wales (UNSW), Sydney, NSW 2052, Australia.
| | - Kathryn D Baker
- School of Psychology, University of New South Wales (UNSW), Sydney, NSW 2052, Australia.
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192
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The Impact of Stress and Major Depressive Disorder on Hippocampal and Medial Prefrontal Cortex Morphology. Biol Psychiatry 2019; 85:443-453. [PMID: 30470559 PMCID: PMC6380948 DOI: 10.1016/j.biopsych.2018.09.031] [Citation(s) in RCA: 273] [Impact Index Per Article: 54.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 07/25/2018] [Accepted: 09/10/2018] [Indexed: 02/07/2023]
Abstract
Volumetric reductions in the hippocampus and medial prefrontal cortex (mPFC) are among the most well-documented neural abnormalities in major depressive disorder (MDD). Hippocampal and mPFC structural reductions have been specifically tied to MDD illness progression markers, including greater number of major depressive episodes (MDEs), longer illness duration, and nonremission/treatment resistance. Chronic stress plays a critical role in the development of hippocampal and mPFC deficits, with some studies suggesting that these deficits occur irrespective of MDE occurrence. However, preclinical and human research also points to other stress-mediated neurotoxic processes, including enhanced inflammation and neurotransmitter disturbances, which may require the presence of an MDE and contribute to further brain structural decline as the illness advances. Specifically, hypothalamic-pituitary-adrenal axis dysfunction, enhanced inflammation and oxidative stress, and neurotransmitter abnormalities (e.g., serotonin, glutamate, gamma-aminobutyric acid) likely interact to facilitate illness progression in MDD. Congruent with stress sensitization models of MDD, with each consecutive MDE it may take lower levels of stress to trigger these neurotoxic pathways, leading to more pronounced brain volumetric reductions. Given that stress and MDD have overlapping and distinct influences on neurobiological pathways implicated in hippocampal and mPFC structural decline, further work is needed to clarify which precise mechanisms ultimately contribute to MDD development and maintenance.
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193
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Paredes D, Morilak DA. A Rodent Model of Exposure Therapy: The Use of Fear Extinction as a Therapeutic Intervention for PTSD. Front Behav Neurosci 2019; 13:46. [PMID: 30914932 PMCID: PMC6421316 DOI: 10.3389/fnbeh.2019.00046] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 02/21/2019] [Indexed: 12/28/2022] Open
Abstract
The symptoms of post-traumatic stress disorder (PTSD) include cognitive impairment related to medial prefrontal cortical dysfunction. Indeed, a deficit of cognitive flexibility, i.e., an inability to modify previously learned thoughts and behaviors based on changes in the environment, may underlie many of the other symptoms of PTSD, such as changes in mood, hyper-arousal, intrusive thoughts, exaggerated and over-generalized fear, and avoidance behavior. Cognitive-behavioral therapies target the cognitive dysfunction observed in PTSD patients, training them to recalibrate stress-related perceptions, interpretations and responses. Preclinically, the extinction of conditioned fear bears resemblance to one form of cognitive therapy, exposure therapy, whereby an individual learns, through repeated exposure to a fear-provoking stimulus in a safe environment, that the stimulus no longer signals imminent threat, and their fear response is suppressed. In this review article, we highlight recent findings from our lab using fear extinction as a preclinical model of exposure therapy in rodents exposed to chronic unpredictable stress (CUS). We specifically focus on the therapeutic effects of extinction on stress-compromised set-shifting as a measure of cognitive flexibility, and active vs. passive coping behavior as a measure of avoidance. Finally, we discuss mechanisms involving activity and plasticity in the medial prefrontal cortex (mPFC) necessary for the therapeutic effects of extinction on cognitive flexibility and active coping.
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Affiliation(s)
- Denisse Paredes
- Department of Pharmacology and Center for Biomedical Neuroscience, University of Texas Health Science Center, San Antonio, San Antonio, TX, United States
| | - David A Morilak
- Department of Pharmacology and Center for Biomedical Neuroscience, University of Texas Health Science Center, San Antonio, San Antonio, TX, United States.,South Texas Veterans Health Care System (STVHCS), San Antonio, TX, United States
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194
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Chronic unpredictable stress promotes cell-specific plasticity in prefrontal cortex D1 and D2 pyramidal neurons. Neurobiol Stress 2019; 10:100152. [PMID: 30937357 PMCID: PMC6430618 DOI: 10.1016/j.ynstr.2019.100152] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 03/04/2019] [Accepted: 03/04/2019] [Indexed: 11/24/2022] Open
Abstract
Exposure to unpredictable environmental stress is widely recognized as a major determinant for risk and severity in neuropsychiatric disorders such as major depressive disorder, anxiety, schizophrenia, and PTSD. The ability of ostensibly unrelated disorders to give rise to seemingly similar psychiatric phenotypes highlights a need to identify circuit-level concepts that could unify diverse factors under a common pathophysiology. Although difficult to disentangle a causative effect of stress from other factors on medial prefrontal cortex (PFC) dysfunction, a wealth of data from humans and rodents demonstrates that the PFC is a key target of stress. The present study sought to identify a model of chronic unpredictable stress (CUS) which induces affective behaviors in C57BL6J mice and once established, measure stress-related alterations in intrinsic excitability and synaptic regulation of mPFC layer 5/6 pyramidal neurons. Adult male mice received 2 weeks of 'less intense' stress or 2 or 4 weeks of 'more intense' CUS followed by sucrose preference for assessment of anhedonia, elevated plus maze for assessment of anxiety and forced swim test for assessment of depressive-like behaviors. Our findings indicate that more intense CUS exposure results in increased anhedonia, anxiety, and depressive behaviors, while the less intense stress results in no measured behavioral phenotypes. Once a behavioral model was established, mice were euthanized approximately 21 days post-stress for whole-cell patch clamp recordings from layer 5/6 pyramidal neurons in the prelimbic (PrL) and infralimbic (IL) cortices. No significant differences were initially observed in intrinsic cell excitability in either region. However, post-hoc analysis and subsequent confirmation using transgenic mice expressing tdtomato or eGFP under control of dopamine D1-or D2-type receptor showed that D1-expressing pyramidal neurons (D1-PYR) in the PrL exhibit reduced thresholds to fire an action potential (increased excitability) but impaired firing capacity at more depolarized potentials, whereas D2-expressing pyramidal neurons (D2-PYR) showed an overall reduction in excitability and spike firing frequency. Examination of synaptic transmission showed that D1-and D2-PYR exhibit differences in basal excitatory and inhibitory signaling under naïve conditions. In CUS mice, D1-PYR showed increased frequency of both miniature excitatory and inhibitory postsynaptic currents, whereas D2-PYR only showed a reduction in excitatory currents. These findings demonstrate that D1-and D2-PYR subpopulations differentially undergo stress-induced intrinsic and synaptic plasticity that may have functional implications for stress-related pathology, and that these adaptations may reflect unique differences in basal properties regulating output of these cells.
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195
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Zheng Y, Liu A, Wang ZJ, Cao Q, Wang W, Lin L, Ma K, Zhang F, Wei J, Matas E, Cheng J, Chen GJ, Wang X, Yan Z. Inhibition of EHMT1/2 rescues synaptic and cognitive functions for Alzheimer's disease. Brain 2019; 142:787-807. [PMID: 30668640 PMCID: PMC6391616 DOI: 10.1093/brain/awy354] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 11/01/2018] [Accepted: 11/22/2018] [Indexed: 12/18/2022] Open
Abstract
Epigenetic dysregulation, which leads to the alteration of gene expression in the brain, is suggested as one of the key pathophysiological bases of ageing and neurodegeneration. Here we found that, in the late-stage familial Alzheimer's disease (FAD) mouse model, repressive histone H3 dimethylation at lysine 9 (H3K9me2) and euchromatic histone methyltransferases EHMT1 and EHMT2 were significantly elevated in the prefrontal cortex, a key cognitive region affected in Alzheimer's disease. Elevated levels of H3K9me2 were also detected in the prefrontal cortex region of post-mortem tissues from human patients with Alzheimer's disease. Concomitantly, H3K9me2 at glutamate receptors was increased in prefrontal cortex of aged FAD mice, which was linked to the diminished transcription, expression and function of AMPA and NMDA receptors. Treatment of FAD mice with specific EHMT1/2 inhibitors reversed histone hyper-methylation and led to the recovery of glutamate receptor expression and excitatory synaptic function in prefrontal cortex and hippocampus. Chromatin immunoprecipitation-sequencing (ChIP-seq) data indicated that FAD mice exhibited genome-wide increase of H3K9me2 enrichment at genes involved in neuronal signalling (including glutamate receptors), which was reversed by EHMT1/2 inhibition. Moreover, the impaired recognition memory, working memory, and spatial memory in aged FAD mice were rescued by the treatment with EHMT1/2 inhibitors. These results suggest that disrupted epigenetic regulation of glutamate receptor transcription underlies the synaptic and cognitive deficits in Alzheimer's disease, and targeting histone methylation enzymes may represent a novel therapeutic strategy for this prevalent neurodegenerative disorder.
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Affiliation(s)
- Yan Zheng
- Department of Physiology and Biophysics, School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, USA
- Department of Physiology, Key Laboratory for Neurodegenerative Disorders of the Ministry of Education, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, P.R.China
| | - Aiyi Liu
- Department of Physiology and Biophysics, School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, USA
- Department of Neurology, the First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, Chongqing, P.R.China
| | - Zi-Jun Wang
- Department of Physiology and Biophysics, School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, USA
- VA Western New York Healthcare System, Buffalo, NY, USA
| | - Qing Cao
- Department of Physiology and Biophysics, School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, USA
| | - Wei Wang
- Department of Physiology and Biophysics, School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, USA
| | - Lin Lin
- Department of Physiology and Biophysics, School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, USA
| | - Kaijie Ma
- Department of Physiology and Biophysics, School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, USA
- VA Western New York Healthcare System, Buffalo, NY, USA
| | - Freddy Zhang
- Department of Physiology and Biophysics, School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, USA
| | - Jing Wei
- Department of Physiology and Biophysics, School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, USA
- VA Western New York Healthcare System, Buffalo, NY, USA
| | - Emmanuel Matas
- Department of Physiology and Biophysics, School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, USA
| | - Jia Cheng
- Department of Physiology and Biophysics, School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, USA
| | - Guo-Jun Chen
- Department of Neurology, the First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Neurology, Chongqing, P.R.China
| | - Xiaomin Wang
- Department of Physiology, Key Laboratory for Neurodegenerative Disorders of the Ministry of Education, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, P.R.China
| | - Zhen Yan
- Department of Physiology and Biophysics, School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, USA
- VA Western New York Healthcare System, Buffalo, NY, USA
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196
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Chronic histamine 3 receptor antagonism alleviates depression like conditions in mice via modulation of brain-derived neurotrophic factor and hypothalamus-pituitary adrenal axis. Psychoneuroendocrinology 2019; 101:128-137. [PMID: 30458370 DOI: 10.1016/j.psyneuen.2018.11.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 11/02/2018] [Accepted: 11/05/2018] [Indexed: 02/08/2023]
Abstract
The last two decades of research has established histamine (HA) as a neurotransmitter. Since H3R antagonists are known to modulate several neurotransmitters besides HA, H3R antagonists have shown potential for the treatment of different central nervous system disorders, including depression. However, molecular mechanisms underlying the beneficial effects of H3R antagonism in depression are not clear, yet. In the present study, we investigated the antidepressant potential of ciproxifan, a selective H3R antagonist, in chronic unpredictable stress (CUS) model of depression in C57BL/6 J mice. We observed that chronic treatment of CUS mice with ciproxifan (3 mg/kg i.p.; for three weeks) alleviates depression-like symptoms such as helplessness measured by forced swim and tail suspension test (FST and TST), anhedonia measured by sucrose preference test (SPT) and social deficit measured in social behavior test. Chronic ciproxifan treatment restored CUS induced BDNF expression in the prefrontal cortex (PFC) and hippocampus. We also observed that ciproxifan modulates CUS induced NUCB2/nesfatin-1 and CRH expression in the hypothalamus and plasma corticosterone. We also determined the direct effect of HA on BDNF expression in neurons by western blotting and immunocytochemistry, and found that HA significantly induced BDNF expression, which was blocked by the H4R selective antagonist, but not by other HA receptor selective antagonists. Furthermore, ciproxifan significantly modulated NMDA glutamate receptor subunits NR2B and NR2A. Thus, these results suggest that increased HA signaling in the brain produces antidepressant-like effects in mice and modulates BDNF expression and HPA-axis.
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197
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Crowley NA, Magee SN, Feng M, Jefferson SJ, Morris CJ, Dao NC, Brockway DF, Luscher B. Ketamine normalizes binge drinking-induced defects in glutamatergic synaptic transmission and ethanol drinking behavior in female but not male mice. Neuropharmacology 2019; 149:35-44. [PMID: 30731135 DOI: 10.1016/j.neuropharm.2019.02.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 01/30/2019] [Accepted: 02/02/2019] [Indexed: 01/06/2023]
Abstract
Ketamine is a fast acting experimental antidepressant with significant therapeutic potential for emotional disorders such as major depressive disorder and alcohol use disorders. Of particular interest is binge alcohol use, which during intermittent withdrawal from drinking involves depressive-like symptoms reminiscent of major depressive disorder. Binge drinking has been successfully modeled in mice with the Drinking in the Dark (DID) paradigm, which involves daily access to 20% ethanol, for a limited duration and selectively during the dark phase of the circadian light cycle. Here we demonstrate that DID exposure reduces the cell surface expression of NMDA- and AMPA-type glutamate receptors in the prelimbic cortex (PLC) of female but not male mice, along with reduced activity of the mammalian target of rapamycin (mTOR) signaling pathway. Pretreatment with an acute subanesthetic dose of ketamine suppresses binge-like ethanol consumption in female but not male mice. Lastly, DID-exposure reduces spontaneous glutamatergic synaptic transmission in the PLC of both sexes, but synaptic transmission is rescued by ketamine selectively in female mice. Thus, ketamine may have therapeutic potential as an ethanol binge suppressing agent selectively in female subjects.
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Affiliation(s)
- Nicole A Crowley
- Department of Biology, Pennsylvania State University, University Park, PA, 16802, USA; Center for Molecular Investigation of Neurological Disorders (CMIND), The Huck Institutes for the Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Sarah N Magee
- Department of Biology, Pennsylvania State University, University Park, PA, 16802, USA
| | - Mengyang Feng
- Department of Biology, Pennsylvania State University, University Park, PA, 16802, USA; Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA, 16802, USA; Center for Molecular Investigation of Neurological Disorders (CMIND), The Huck Institutes for the Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Sarah J Jefferson
- Department of Biology, Pennsylvania State University, University Park, PA, 16802, USA; Center for Molecular Investigation of Neurological Disorders (CMIND), The Huck Institutes for the Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Christian J Morris
- Department of Biology, Pennsylvania State University, University Park, PA, 16802, USA; Center for Molecular Investigation of Neurological Disorders (CMIND), The Huck Institutes for the Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Nigel C Dao
- Center for Molecular Investigation of Neurological Disorders (CMIND), The Huck Institutes for the Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA; Department of Biobehavioral Health, Pennsylvania State University, University Park, PA, 16802, USA
| | - Dakota F Brockway
- Department of Biology, Pennsylvania State University, University Park, PA, 16802, USA; Center for Molecular Investigation of Neurological Disorders (CMIND), The Huck Institutes for the Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Bernhard Luscher
- Department of Biology, Pennsylvania State University, University Park, PA, 16802, USA; Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA, 16802, USA; Center for Molecular Investigation of Neurological Disorders (CMIND), The Huck Institutes for the Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA.
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198
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Orlandi C, Sutton LP, Muntean BS, Song C, Martemyanov KA. Homeostatic cAMP regulation by the RGS7 complex controls depression-related behaviors. Neuropsychopharmacology 2019; 44:642-653. [PMID: 30546127 PMCID: PMC6333837 DOI: 10.1038/s41386-018-0238-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 09/25/2018] [Accepted: 10/02/2018] [Indexed: 01/27/2023]
Abstract
Affective disorders arise from abnormal responses of the brain to prolonged exposure to challenging environmental stimuli. Recent work identified the orphan receptor GPR158 as a molecular link between chronic stress and depression. Here we reveal a non-canonical mechanism by which GPR158 exerts its effects on stress-induced depression by the complex formation with Regulator of G protein Signaling 7 (RGS7). Chronic stress promotes membrane recruitment of RGS7 via GPR158 in the medial prefrontal cortex (mPFC). The resultant complex suppresses homeostatic regulation of cAMP by inhibitory GPCRs in the region. Accordingly, RGS7 loss in mice induces an antidepressant-like phenotype and resiliency to stress, whereas its restoration within the mPFC is sufficient to rescue this phenotype in a GPR158-dependent way. These findings mechanistically link the unusual orphan receptor-RGS complex to a major stress mediator, the cAMP system and suggest new avenues for pharmacological interventions in affective disorders.
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Affiliation(s)
- Cesare Orlandi
- 0000000122199231grid.214007.0Department of Neuroscience, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL 33458 USA
| | - Laurie P. Sutton
- 0000000122199231grid.214007.0Department of Neuroscience, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL 33458 USA
| | - Brian S. Muntean
- 0000000122199231grid.214007.0Department of Neuroscience, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL 33458 USA
| | - Chenghui Song
- 0000000122199231grid.214007.0Department of Neuroscience, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL 33458 USA
| | - Kirill A. Martemyanov
- 0000000122199231grid.214007.0Department of Neuroscience, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL 33458 USA
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199
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Taslimi Z, Komaki A, Sarihi A, Haghparast A. Effect of acute and chronic restraint stress on electrical activity of prefrontal cortex neurons in the reinstatement of extinguished methamphetamine-induced conditioned place preference: An electrophysiological study. Brain Res Bull 2019; 146:237-243. [PMID: 30660715 DOI: 10.1016/j.brainresbull.2019.01.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 01/09/2019] [Accepted: 01/12/2019] [Indexed: 12/29/2022]
Abstract
Increased vulnerability to drug abuse has been observed after exposure to stress and the prefrontal cortex (PFC) plays a major role in the control of the stress response and reward pathway. The current study was conducted to clarify the effects of acute and chronic restraint stress on PFC neural activity during the reinstatement of methamphetamine (METH)-induced conditioned place preference (CPP) in rats. Following the establishment of CPP (METH 0.5 mg/kg; s.c. for 3 days) and the extinction phase, male Wistar rats were divided into threshold (0.25 mg/kg; s.c.) and sub-threshold (0.125 mg/kg; s.c.) METH-treated super groups to induce reinstatement. Each super group contained control (non-stressed), acute restraint stress (ARS) and chronic restraint stress (CRS) groups. in vivo single unit recordings were performed on the urethane-anesthetized rats in these groups. After baseline recordings (10-min period) of the neurons in the PFC, their firing activity was recorded for 50 min during the reinstatement phase after injection of METH. The results showed that the threshold dose, but not the sub-threshold dose, of METH significantly increased PFC neural activity in the non-stressed animals. The sub-threshold dose of METH notably changed this activity in both the ARS and CRS groups. These changes in the excited neurons after the sub-threshold dose in the ARS and CRS groups were significantly higher than those in the non-stressed group. It appears that the PFC is implicated in the associated reward pathway and stress functions. METH affected the firing rate of PFC neurons and stress amplified the effect of METH on changes in the neuronal firing rate in the PFC.
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Affiliation(s)
- Zahra Taslimi
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Alireza Komaki
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Abdolrahman Sarihi
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Abbas Haghparast
- Neuroscience Research Center, School of Medicine, Shahid Beheshti University of Medical Sciences, 19615-1178, Tehran, Iran.
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200
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Sillivan SE, Jones ME, Jamieson S, Rumbaugh G, Miller CA. Bioinformatic analysis of long-lasting transcriptional and translational changes in the basolateral amygdala following acute stress. PLoS One 2019; 14:e0209846. [PMID: 30629705 PMCID: PMC6328204 DOI: 10.1371/journal.pone.0209846] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 12/12/2018] [Indexed: 12/18/2022] Open
Abstract
Stress profoundly impacts the brain and increases the risk of developing a psychiatric disorder. The brain’s response to stress is mediated by a number of pathways that affect gene expression and protein function throughout the cell. Understanding how stress achieves such dramatic effects on the brain requires an understanding of the brain’s stress response pathways. The majority of studies focused on molecular changes have employed repeated or chronic stress paradigms to assess the long-term consequences of stress and have not taken an integrative genomic and/or proteomic approach. Here, we determined the lasting impact of a single stressful event (restraint) on the broad molecular profile of the basolateral amygdala complex (BLC), a key brain region mediating emotion, memory and stress. Molecular profiling performed thirty days post-restraint consisted of small RNA sequencing, RNA sequencing and quantitative mass spectrometry and identified long-lasting changes in microRNA (miRNA), messenger RNA (mRNA) and proteins. Alignment of the three datasets further delineated the regulation of stress-specific pathways which were validated by qPCR and Western Blot analysis. From this analysis, mir-29a-5p was identified as a putative regulator of stress-induced adaptations in the BLC. Further, a number of predicted mir-29a-5p targets are regulated at the mRNA and protein level. The concerted and long-lasting disruption of multiple molecular pathways in the amygdala by a single stress event is expected to be sufficient to alter behavioral responses to a wide array of future experiences, including exposure to additional stressors.
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Affiliation(s)
- Stephanie E. Sillivan
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida, United States of America
- Department of Neuroscience, The Scripps Research Institute, Jupiter, Florida, United States of America
- Department of Anatomy and Cell Biology, Temple University, Philadelphia, Pennsylvania, United States of America
| | - Meghan E. Jones
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida, United States of America
- Department of Neuroscience, The Scripps Research Institute, Jupiter, Florida, United States of America
| | - Sarah Jamieson
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida, United States of America
- Department of Neuroscience, The Scripps Research Institute, Jupiter, Florida, United States of America
| | - Gavin Rumbaugh
- Department of Neuroscience, The Scripps Research Institute, Jupiter, Florida, United States of America
| | - Courtney A. Miller
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida, United States of America
- Department of Neuroscience, The Scripps Research Institute, Jupiter, Florida, United States of America
- * E-mail:
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