1
|
Tomé DF, Zhang Y, Aida T, Mosto O, Lu Y, Chen M, Sadeh S, Roy DS, Clopath C. Dynamic and selective engrams emerge with memory consolidation. Nat Neurosci 2024; 27:561-572. [PMID: 38243089 PMCID: PMC10917686 DOI: 10.1038/s41593-023-01551-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 12/12/2023] [Indexed: 01/21/2024]
Abstract
Episodic memories are encoded by experience-activated neuronal ensembles that remain necessary and sufficient for recall. However, the temporal evolution of memory engrams after initial encoding is unclear. In this study, we employed computational and experimental approaches to examine how the neural composition and selectivity of engrams change with memory consolidation. Our spiking neural network model yielded testable predictions: memories transition from unselective to selective as neurons drop out of and drop into engrams; inhibitory activity during recall is essential for memory selectivity; and inhibitory synaptic plasticity during memory consolidation is critical for engrams to become selective. Using activity-dependent labeling, longitudinal calcium imaging and a combination of optogenetic and chemogenetic manipulations in mouse dentate gyrus, we conducted contextual fear conditioning experiments that supported our model's predictions. Our results reveal that memory engrams are dynamic and that changes in engram composition mediated by inhibitory plasticity are crucial for the emergence of memory selectivity.
Collapse
Affiliation(s)
- Douglas Feitosa Tomé
- Department of Bioengineering, Imperial College London, London, UK.
- Institute of Science and Technology Austria, Klosterneuburg, Austria.
| | - Ying Zhang
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA, USA.
- Center for Life Sciences & IDG/McGovern Institute for Brain Research, School of Life Sciences, Tsinghua University, Beijing, China.
| | - Tomomi Aida
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Olivia Mosto
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Yifeng Lu
- Center for Life Sciences & IDG/McGovern Institute for Brain Research, School of Life Sciences, Tsinghua University, Beijing, China
| | - Mandy Chen
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Sadra Sadeh
- Department of Bioengineering, Imperial College London, London, UK
- Department of Brain Sciences, Imperial College London, London, UK
| | - Dheeraj S Roy
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA.
- Department of Physiology and Biophysics, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, USA.
| | - Claudia Clopath
- Department of Bioengineering, Imperial College London, London, UK.
| |
Collapse
|
2
|
Halcomb CJ, Philipp TR, Dhillon PS, Cox JH, Aguilar-Alvarez R, Vanderhoof SO, Jasnow AM. Sex divergent behavioral responses in platform-mediated avoidance and glucocorticoid receptor blockade. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.26.559122. [PMID: 37808636 PMCID: PMC10557728 DOI: 10.1101/2023.09.26.559122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Women are more likely than men to develop anxiety or stress-related disorders. A core behavioral symptom of all anxiety disorders is avoidance of fear or anxiety eliciting cues. Recent rodent models of avoidance show reliable reproduction of this behavioral phenomenon in response to learned aversive associations. Here, a modified version of platform-mediated avoidance that lacked an appetitive task was utilized to investigate the learning and extinction of avoidance in male and female C57BL6/J mice. Here, we found a robust sex difference in the acquisition and extinction of platform-mediated avoidance. Across three experiments, 63.7% of female mice acquired avoidance according to our criterion, whereas 83.8% of males acquired it successfully. Of those females that acquired avoidance, they displayed persistent avoidance after extinction compared to males. Given their role in regulating stress responses and habitual behaviors, we investigated if glucocorticoid receptors (GR) mediated avoidance learning in males and females. Here we found that a subcutaneous injection (25mg/kg) of the GR antagonist, RU486 (mifepristone), significantly reduced persistent avoidance in females but did not further reduce avoidance in males after extinction. These data suggest that GR activation during avoidance learning may contribute to persistent avoidance in females that is resistant to extinction.
Collapse
|
3
|
Çalışkan G, Demiray YE, Stork O. Comparison of three common inbred mouse strains reveals substantial differences in hippocampal GABAergic interneuron populations and in vitro network oscillations. Eur J Neurosci 2023; 58:3383-3401. [PMID: 37550182 DOI: 10.1111/ejn.16112] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 07/03/2023] [Accepted: 07/06/2023] [Indexed: 08/09/2023]
Abstract
A major challenge in neuroscience is to pinpoint neurobiological correlates of specific cognitive and neuropsychiatric traits. At the mesoscopic level, promising candidates for establishing such connections are brain oscillations that can be robustly recorded as local field potentials with varying frequencies in the hippocampus in vivo and in vitro. Inbred mouse strains show natural variation in hippocampal synaptic plasticity (e.g. long-term potentiation), a cellular correlate of learning and memory. However, their diversity in expression of different types of hippocampal network oscillations has not been fully explored. Here, we investigated hippocampal network oscillations in three widely used inbred mouse strains: C57BL/6J (B6J), C57BL/6NCrl (B6N) and 129S2/SvPasCrl (129) with the aim to identify common oscillatory characteristics in inbred mouse strains that show aberrant emotional/cognitive behaviour (B6N and 129) and compare them to "control" B6J strain. First, we detected higher gamma oscillation power in the hippocampal CA3 of both B6N and 129 strains. Second, higher incidence of hippocampal sharp wave-ripple (SPW-R) transients was evident in these strains. Third, we observed prominent differences in the densities of distinct interneuron types and CA3 associative network activity, which are indispensable for sustainment of mesoscopic network oscillations. Together, these results add further evidence to profound physiological differences among inbred mouse strains commonly used in neuroscience research.
Collapse
Affiliation(s)
- Gürsel Çalışkan
- Research Group "Synapto-Oscillopathies", Institute of Biology, Otto-von-Guericke-University, Magdeburg, Germany
- Department of Genetics and Molecular Neurobiology, Institute of Biology, Otto-von-Guericke-University, Magdeburg, Germany
- Center for Behavioral Brain Sciences (CBBS), Magdeburg, Germany
| | - Yunus E Demiray
- Department of Genetics and Molecular Neurobiology, Institute of Biology, Otto-von-Guericke-University, Magdeburg, Germany
| | - Oliver Stork
- Department of Genetics and Molecular Neurobiology, Institute of Biology, Otto-von-Guericke-University, Magdeburg, Germany
- Center for Behavioral Brain Sciences (CBBS), Magdeburg, Germany
- Center for Intervention and Research on Adaptive and Maladaptive Brain Circuits Underlying MentalHealth (C-I-R-C), Jena-Magdeburg-Halle, Germany
- German Center for Mental Health (DZPG), Site Jena-Magdeburg-Halle, Jena-Magdeburg-Halle, Germany
| |
Collapse
|
4
|
Antonoudiou P, Stone B, Colmers PLW, Evans-Strong A, Walton N, Maguire J. Influence of chronic stress on network states governing valence processing: Potential relevance to the risk for psychiatric illnesses. J Neuroendocrinol 2023; 35:e13274. [PMID: 37186481 PMCID: PMC11025365 DOI: 10.1111/jne.13274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 03/23/2023] [Accepted: 03/29/2023] [Indexed: 05/17/2023]
Abstract
Stress is a major risk factor for psychiatric illnesses and understanding the mechanisms through which stress disrupts behavioral states is imperative to understanding the underlying pathophysiology of mood disorders. Both chronic stress and early life stress alter valence processing, the process of assigning value to sensory inputs and experiences (positive or negative), which determines subsequent behavior and is essential for emotional processing and ultimately survival. Stress disrupts valence processing in both humans and preclinical models, favoring negative valence processing and impairing positive valence processing. Valence assignment involves neural computations performed in emotional processing hubs, including the amygdala, prefrontal cortex, and ventral hippocampus, which can be influenced by neuroendocrine mediators. Oscillations within and between these regions are critical for the neural computations necessary to perform valence processing functions. Major advances in the field have demonstrated a role for oscillatory states in valence processing under physiological conditions and emerging studies are exploring how these network states are altered under pathophysiological conditions and impacted by neuroendocrine factors. The current review highlights what is currently known regarding the impact of stress and the role of neuroendocrine mediators on network states and valence processing. Further, we propose a model in which chronic stress alters information routing through emotional processing hubs, resulting in a facilitation of negative valence processing and a suppression of positive valence processing.
Collapse
Affiliation(s)
| | - Bradly Stone
- Tufts University School of Medicine, Boston, Massachusetts, USA
| | | | | | - Najah Walton
- Tufts University School of Medicine, Boston, Massachusetts, USA
| | - Jamie Maguire
- Tufts University School of Medicine, Boston, Massachusetts, USA
| |
Collapse
|
5
|
FKBP51 in the Oval Bed Nucleus of the Stria Terminalis Regulates Anxiety-Like Behavior. eNeuro 2021; 8:ENEURO.0425-21.2021. [PMID: 34872938 PMCID: PMC8687485 DOI: 10.1523/eneuro.0425-21.2021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/11/2021] [Accepted: 11/15/2021] [Indexed: 12/22/2022] Open
Abstract
The cochaperone FKBP51, encoded by the Fkbp5 gene, has been identified as central risk factor for anxiety-related disorders and stress system dysregulation. In the brain, the oval bed nucleus of the stria terminalis (ovBNST) has been implicated in stress-induced anxiety. However, the role of Fkbp5 in the ovBNST and its impact on anxiety-like behavior have remained unknown. Here, we show in mice that Fkbp5 in the ovBNST is reactive to acute stress and coexpressed with the stress-regulated neuropeptides Tac2 and Crh Subsequently, results obtained from viral-mediated manipulation indicate that Fkbp5 overexpression (OE) in the ovBNST results in an anxiolytic-like tendency regarding behavior and endocrinology, whereas a Fkbp5 knock-out (KO) exposed a clear anxiogenic phenotype, indicating that native ovBNST expression and regulation is necessary for normal anxiety-related behavior. Notably, our data suggests that a stress-induced increase of Fkbp5 in the ovBNST may in fact have a protective role, leading to a transient decrease in anxiety and suppression of a future stress-induced hypothalamic-pituitary-adrenal (HPA) axis activation. Together, our findings provide a first insight into the previously unknown relationship and effects of Fkbp5 and the ovBNST on anxiety-like behavior and HPA axis functioning.
Collapse
|
6
|
Wang KY, Wu JW, Cheng JK, Chen CC, Wong WY, Averkin RG, Tamás G, Nakazawa K, Lien CC. Elevation of hilar mossy cell activity suppresses hippocampal excitability and avoidance behavior. Cell Rep 2021; 36:109702. [PMID: 34525354 DOI: 10.1016/j.celrep.2021.109702] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 07/09/2021] [Accepted: 08/20/2021] [Indexed: 12/30/2022] Open
Abstract
Modulation of hippocampal dentate gyrus (DG) excitability regulates anxiety. In the DG, glutamatergic mossy cells (MCs) receive the excitatory drive from principal granule cells (GCs) and mediate the feedback excitation and inhibition of GCs. However, the circuit mechanism by which MCs regulate anxiety-related information routing through hippocampal circuits remains unclear. Moreover, the correlation between MC activity and anxiety states is unclear. In this study, we first demonstrate, by means of calcium fiber photometry, that MC activity in the ventral hippocampus (vHPC) of mice increases while they explore anxiogenic environments. Next, juxtacellular recordings reveal that optogenetic activation of MCs preferentially recruits GABAergic neurons, thereby suppressing GCs and ventral CA1 neurons. Finally, chemogenetic excitation of MCs in the vHPC reduces avoidance behaviors in both healthy and anxious mice. These results not only indicate an anxiolytic role of MCs but also suggest that MCs may be a potential therapeutic target for anxiety disorders.
Collapse
Affiliation(s)
- Kai-Yi Wang
- Institute of Neuroscience, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan
| | - Jei-Wei Wu
- Institute of Neuroscience, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan
| | - Jen-Kun Cheng
- Department of Medicine, Mackay Medical College, New Taipei 252, Taiwan; Department of Anesthesiology, Mackay Memorial Hospital, Taipei 104, Taiwan
| | | | - Wai-Yi Wong
- Institute of Neuroscience, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan
| | - Robert G Averkin
- ELKH-SZTE Research Group for Cortical Microcircuits, Department of Physiology, Anatomy and Neuroscience, University of Szeged, Közép fasor 52, Szeged 6726, Hungary
| | - Gábor Tamás
- ELKH-SZTE Research Group for Cortical Microcircuits, Department of Physiology, Anatomy and Neuroscience, University of Szeged, Közép fasor 52, Szeged 6726, Hungary
| | - Kazu Nakazawa
- Department of Neuroscience, Southern Research, Birmingham, AL 35205, USA; Department of Neurobiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Cheng-Chang Lien
- Institute of Neuroscience, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan; Brain Research Center, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan.
| |
Collapse
|
7
|
Madencioglu DA, Çalışkan G, Yuanxiang P, Rehberg K, Demiray YE, Kul E, Engler A, Hayani H, Bergado-Acosta JR, Kummer A, Müller I, Song I, Dityatev A, Kähne T, Kreutz MR, Stork O. Transgenic modeling of Ndr2 gene amplification reveals disturbance of hippocampus circuitry and function. iScience 2021; 24:102868. [PMID: 34381982 PMCID: PMC8340122 DOI: 10.1016/j.isci.2021.102868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 05/19/2021] [Accepted: 07/14/2021] [Indexed: 11/18/2022] Open
Abstract
Duplications and deletions of short chromosomal fragments are increasingly recognized as the cause for rare neurodevelopmental conditions and disorders. The NDR2 gene encodes a protein kinase important for neuronal development and is part of a microduplication region on chromosome 12 that is associated with intellectual disabilities, autism, and epilepsy. We developed a conditional transgenic mouse with increased Ndr2 expression in postmigratory forebrain neurons to study the consequences of an increased gene dosage of this Hippo pathway kinase on brain circuitry and cognitive functions. Our analysis reveals reduced terminal fields and synaptic transmission of hippocampal mossy fibers, altered hippocampal network activity, and deficits in mossy fiber-dependent behaviors. Reduced doublecortin expression and protein interactome analysis indicate that transgenic Ndr2 disturbs the maturation of granule cells in the dentate gyrus. Together, our data suggest that increased expression of Ndr2 may critically contribute to the development of intellectual disabilities upon gene amplification.
Collapse
Affiliation(s)
- Deniz A. Madencioglu
- Department of Genetics and Molecular Neurobiology, Institute of Biology, Otto-von-Guericke-University, 39120 Magdeburg, Germany
| | - Gürsel Çalışkan
- Department of Genetics and Molecular Neurobiology, Institute of Biology, Otto-von-Guericke-University, 39120 Magdeburg, Germany
- Center for Behavioral Brain Sciences, 39102Magdeburg, Germany
| | - Pingan Yuanxiang
- Research Group Neuroplasticity, Leibniz Institute for Neurobiology, 39112Magdeburg, Germany
| | - Kati Rehberg
- Department of Genetics and Molecular Neurobiology, Institute of Biology, Otto-von-Guericke-University, 39120 Magdeburg, Germany
| | - Yunus E. Demiray
- Department of Genetics and Molecular Neurobiology, Institute of Biology, Otto-von-Guericke-University, 39120 Magdeburg, Germany
| | - Emre Kul
- Department of Genetics and Molecular Neurobiology, Institute of Biology, Otto-von-Guericke-University, 39120 Magdeburg, Germany
| | - Alexander Engler
- Institute of Experimental Internal Medicine, Otto-von-Guericke-University, 39120Magdeburg, Germany
| | - Hussam Hayani
- Molecular Neuroplasticity Group, German Center for Neurodegenerative Diseases, 39120Magdeburg, Germany
| | - Jorge R. Bergado-Acosta
- Department of Genetics and Molecular Neurobiology, Institute of Biology, Otto-von-Guericke-University, 39120 Magdeburg, Germany
- Center for Behavioral Brain Sciences, 39102Magdeburg, Germany
| | - Anne Kummer
- Department of Genetics and Molecular Neurobiology, Institute of Biology, Otto-von-Guericke-University, 39120 Magdeburg, Germany
| | - Iris Müller
- Department of Genetics and Molecular Neurobiology, Institute of Biology, Otto-von-Guericke-University, 39120 Magdeburg, Germany
- Center for Behavioral Brain Sciences, 39102Magdeburg, Germany
| | - Inseon Song
- Molecular Neuroplasticity Group, German Center for Neurodegenerative Diseases, 39120Magdeburg, Germany
| | - Alexander Dityatev
- Molecular Neuroplasticity Group, German Center for Neurodegenerative Diseases, 39120Magdeburg, Germany
- Center for Behavioral Brain Sciences, 39102Magdeburg, Germany
- Medical Faculty, Otto-von-Guericke-University, 39120Magdeburg, Germany
| | - Thilo Kähne
- Institute of Experimental Internal Medicine, Otto-von-Guericke-University, 39120Magdeburg, Germany
- Center for Behavioral Brain Sciences, 39102Magdeburg, Germany
| | - Michael R. Kreutz
- Research Group Neuroplasticity, Leibniz Institute for Neurobiology, 39112Magdeburg, Germany
- Leibniz Group 'Dendritic Organelles and Synaptic Function', University Medical Center Hamburg-Eppendorf, Center for Molecular Neurobiology, ZMNH, 20251Hamburg, Germany
- Center for Behavioral Brain Sciences, 39102Magdeburg, Germany
| | - Oliver Stork
- Department of Genetics and Molecular Neurobiology, Institute of Biology, Otto-von-Guericke-University, 39120 Magdeburg, Germany
- Center for Behavioral Brain Sciences, 39102Magdeburg, Germany
| |
Collapse
|
8
|
Meknatkhah S, Mousavi MS, Sharif Dashti P, Azizzadeh Pormehr L, Riazi GH. The brain 3β-HSD up-regulation in response to deteriorating effects of background emotional stress: an animal model of multiple sclerosis. Metab Brain Dis 2021; 36:1253-1258. [PMID: 33721183 DOI: 10.1007/s11011-021-00708-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 02/24/2021] [Indexed: 02/07/2023]
Abstract
The brain 3β-hydroxysteroid dehydrogenase (3β-HSD), is the enzyme that catalyzes the biosynthesis of a neuroprotective factor, progesterone. The regulation of 3β-HSD in response to stress exposure in the cuprizone-induced model of Multiple Sclerosis was investigated and the reaction related to the demyelination extremity. 32 female Wistar rats divided into four groups (i.e., control group (Cont), non-stress cuprizone treated (N-CPZ), physical stress- cuprizone treated (P-CPZ) and emotional stress- cuprizone treated (E-CPZ). A witness foot-shock model used to induce background stress for 5 days. An elevated-plus maze applied to validate the stress induction. Followed by 6 weeks of cuprizone treatment, the Y-maze test performed to confirm brain demyelination. 3β-HSD gene expression as an indicator of progesterone synthesis examined. At the behavioral level, both stressed groups reflected more impaired spatial memory compared to the N-CPZ group (p < 0.01), with more severe results in the E-CPZ group (p < 0.01). The results of mRNA expression of 3β-HSD illustrated significant elevation in all cuprizone treated groups (p < 0.001) with a higher up-regulation (p < 0.001) in the E-CPZ group. Background stress -particularly emotional type- exacerbates the demyelination caused by cuprizone treatment. The brain up-regulates the 3β-HSD gene expression as a protective response relative to the myelin degradation extent.
Collapse
Affiliation(s)
- Sogol Meknatkhah
- Laboratory of Neuro-Organic Chemistry, Institute of Biochemistry and Biophysics (IBB), University of Tehran, Tehran, Iran
| | - Monireh-Sadat Mousavi
- Laboratory of Neuro-Organic Chemistry, Institute of Biochemistry and Biophysics (IBB), University of Tehran, Tehran, Iran
| | - Pouya Sharif Dashti
- Department of Chemical Engineering, Faculty of Engineering, University of Tehran, Tehran, Iran
| | - Leila Azizzadeh Pormehr
- Laboratory of Neuro-Organic Chemistry, Institute of Biochemistry and Biophysics (IBB), University of Tehran, Tehran, Iran
| | - Gholam Hossein Riazi
- Laboratory of Neuro-Organic Chemistry, Institute of Biochemistry and Biophysics (IBB), University of Tehran, Tehran, Iran.
| |
Collapse
|
9
|
The advent of fear conditioning as an animal model of post-traumatic stress disorder: Learning from the past to shape the future of PTSD research. Neuron 2021; 109:2380-2397. [PMID: 34146470 DOI: 10.1016/j.neuron.2021.05.017] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 03/23/2021] [Accepted: 05/11/2021] [Indexed: 01/06/2023]
Abstract
Translational research on post-traumatic stress disorder (PTSD) has produced limited improvements in clinical practice. Fear conditioning (FC) is one of the dominant animal models of PTSD. In fact, FC is used in many different ways to model PTSD. The variety of FC-based models is ill defined, creating confusion and conceptual vagueness, which in turn impedes translation into the clinic. This article takes a historical and conceptual approach to provide a comprehensive picture of current research and help reorient the research focus. This work historically reviews the variety of models that have emerged from the initial association of PTSD with FC, highlighting conceptual pitfalls that have limited the translation of animal research into clinical advances. We then provide some guidance on how future translational research could benefit from conceptual and technological improvements to translate basic findings in patients. This objective will require transdisciplinary approaches and should involve physicians, engineers, philosophers, and neuroscientists.
Collapse
|
10
|
Rafiq S, Batool Z, Liaquat L, Haider S. Blockade of muscarinic receptors impairs reconsolidation of older fear memory by decreasing cholinergic neurotransmission: A study in rat model of PTSD. Life Sci 2020; 256:118014. [DOI: 10.1016/j.lfs.2020.118014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 06/21/2020] [Accepted: 06/22/2020] [Indexed: 12/25/2022]
|
11
|
Lesion of the dorsal hippocampus alters the time-course evolution of corticosterone rise in the ventral hippocampus after stress. Neuroreport 2020; 30:707-712. [PMID: 31095108 DOI: 10.1097/wnr.0000000000001263] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
We previously showed that an acute stress-induced an early corticosterone rise in the dorsal hippocampus (dHPC) and a delayed one in the ventral hippocampus (vHPC). Congruently, we hypothesized that the dHPC may influence the time-course evolution of poststress glucocorticoid rise in the vHPC. To probe this issue, we performed ibotenic acid lesions of the dHPC and measured by microdialysis the time-course evolution of corticosterone rise in the vHPC after an acute stress delivery. In nonstress condition, we showed that the dHPC lesion induced a significant increase of corticosterone both in plasma and in the vHPC. In addition, an acute stress (electric footshocks) induced a faster and more sustained corticosterone rise in the vHPC of dHPC-lesioned animals, as compared to sham-operated ones. This study provides new found evidence to the effect that the dHPC lesion alters the time-course evolution of corticosterone rise within the vHPC after stress.
Collapse
|
12
|
Murthy S, Gould E. How Early Life Adversity Influences Defensive Circuitry. Trends Neurosci 2020; 43:200-212. [PMID: 32209452 DOI: 10.1016/j.tins.2020.02.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 01/29/2020] [Accepted: 02/04/2020] [Indexed: 12/12/2022]
Abstract
Childhood maltreatment increases the likelihood of developing anxiety disorders in humans. Early life adversity (ELA) paradigms in rodents produce lasting increases in avoidant and inhibitory responses to both immediate and nonspecific threats, collectively referred to as defensive behaviors. This approach provides an opportunity to thoroughly investigate the underlying mechanisms, an effort that is currently under way. In this review, we consider the growing literature indicating that ELA alters the rhythmic firing of neurons in brain regions associated with defensive behavior, as well as potential neuronal, glial, and extracellular matrix contributions to functional changes in this circuitry. We also consider how ELA studies in rodents may inform us about both susceptible and resilient outcomes in humans.
Collapse
Affiliation(s)
- Sahana Murthy
- Princeton Neuroscience Institute, Princeton University, Princeton, NJ 08544, USA
| | - Elizabeth Gould
- Princeton Neuroscience Institute, Princeton University, Princeton, NJ 08544, USA.
| |
Collapse
|
13
|
Li Y, Lu X, Nie J, Hu P, Ge F, Yuan TF, Guan X. MicroRNA134 of Ventral Hippocampus Is Involved in Cocaine Extinction-Induced Anxiety-like and Depression-like Behaviors in Mice. MOLECULAR THERAPY. NUCLEIC ACIDS 2020; 19:937-950. [PMID: 32004865 PMCID: PMC6994828 DOI: 10.1016/j.omtn.2019.12.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 12/24/2019] [Accepted: 12/24/2019] [Indexed: 12/16/2022]
Abstract
We previously found that cocaine abuse could increase microRNA134 (miR134) levels in the hippocampus; yet the roles of miR134 in cocaine-related abnormal psychiatric outcomes remain unknown. In this study, using the cocaine-induced conditioned place preference (CPP) mice model, we found that mice exhibit enhanced anxiety-like and depression-like behaviors during the cocaine extinction (CE) period of CPP, accompanied by obviously increased miR134 levels and decreased levels of 19 genes that are associated with synaptic plasticity, glia activity, and neurochemical microenvironments, in the ventral hippocampus (vHP). Knockdown of miR134 in vHP in vivo reversed the changes in 15 of 19 potential gene targets of miR134 and rescued the abnormal anxiety-like and depression-like behavioral outcomes in CE mice. In parallel, knockdown of miR134 reversed CE-induced changes in dendritic spines and synaptic proteins and increased the field excitatory postsynaptic potential (fEPSP) of CA1 pyramidal neurons in the vHP of CE mice. In addition, knockdown of miR134 suppressed the CE-enhanced microglia activity, inflammatory, apoptotic, and oxidative stress statuses in the vHP. With the data taken together, miR134 may be involved in cocaine-associated psychiatric problems, potentially via regulating the expressions of its gene targets that are related to synaptic plasticity and neurochemical microenvironments.
Collapse
Affiliation(s)
- Yuehan Li
- Department of Human Anatomy and Histoembryology, Nanjing University of Chinese Medicine, Nanjing, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xue Lu
- Department of Human Anatomy and Histoembryology, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jiaxun Nie
- Department of Human Anatomy and Histoembryology, Nanjing University of Chinese Medicine, Nanjing, China
| | - Panpan Hu
- Department of Human Anatomy, Nanjing Medical University, Nanjing, China
| | - Feifei Ge
- Department of Human Anatomy and Histoembryology, Nanjing University of Chinese Medicine, Nanjing, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China.
| | - Ti-Fei Yuan
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiaotong University, Shanghai, China.
| | - Xiaowei Guan
- Department of Human Anatomy and Histoembryology, Nanjing University of Chinese Medicine, Nanjing, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China.
| |
Collapse
|
14
|
Inhibition of Drp1 after traumatic brain injury provides brain protection and improves behavioral performance in rats. Chem Biol Interact 2019; 304:173-185. [DOI: 10.1016/j.cbi.2019.03.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Accepted: 03/13/2019] [Indexed: 12/31/2022]
|
15
|
Zhang Y, Ouyang K, Lipina TV, Wang H, Zhou Q. Conditioned stimulus presentations alter anxiety level in fear-conditioned mice. Mol Brain 2019; 12:28. [PMID: 30925893 PMCID: PMC6441152 DOI: 10.1186/s13041-019-0445-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 03/13/2019] [Indexed: 11/26/2022] Open
Abstract
It is generally believed that fear is rapidly triggered by a distinct cue while anxiety onset is less precise and not associated with a distinct cue. Although it has been claimed that both processes can be measured with certain independence of each other, it is unclear how exactly they differ. In this study, we measured anxiety in mice that received discriminative fear conditioning using behavioral, heart rate and calcium (Ca2+) responses in the ventral hippocampal CA1 (vCA1) neurons. We found that the occurrence of fear significantly interfered with anxiety measurements under various conditions. Diazepam reduced basal anxiety level but had no effect during the presentation of conditioned stimulus (CS). Injection of an inhibitory peptide of PKMzeta (ZIP) into the basolateral amygdala almost entirely abolished CS-triggered fear expression and reduced anxiety to basal level. Heart rate measures suggested a small reduction in anxiety during CS-. Calcium responses in the lateral hypothalamus-projecting vCA1 neurons showed a steady decay during CS suggesting a reduced anxiety. Thus, under our experimental conditions, CS presentations likely reduce anxiety level in the fear-conditioned mice.
Collapse
Affiliation(s)
- Yujie Zhang
- State key laboratory of chemical oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Kunfu Ouyang
- State key laboratory of chemical oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Tatiana V Lipina
- Federal State Budgetary Scientific Institution, Scientific Research Institute of Physiology and Basic Medicine, Novosibirsk, Russia.,University of Toronto, Department of Pharmacology & Toxicology, Toronto, Ontario, Canada
| | - Hong Wang
- State key laboratory of chemical oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Qiang Zhou
- State key laboratory of chemical oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China.
| |
Collapse
|
16
|
Çalışkan G, Stork O. Hippocampal network oscillations at the interplay between innate anxiety and learned fear. Psychopharmacology (Berl) 2019; 236:321-338. [PMID: 30417233 DOI: 10.1007/s00213-018-5109-z] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 11/05/2018] [Indexed: 12/14/2022]
Abstract
The hippocampus plays a central role as a hub for episodic memory and as an integrator of multimodal sensory information in time and space. Thereby, it critically determines contextual setting and specificity of episodic memories. It is also a key site for the control of innate anxiety states and involved in psychiatric diseases with heightened anxiety and generalized fear memory such as post-traumatic stress disorder (PTSD). Expression of both innate "unlearned" anxiety and "learned" fear requires contextual processing and engagement of a brain-wide network including the hippocampus together with the amygdala and medial prefrontal cortex. Strikingly, the hippocampus is also the site of emergence of oscillatory rhythms that coordinate information processing and filtering in this network. Here, we review data on how the hippocampal network oscillations and their coordination with amygdalar and prefrontal oscillations are engaged in innate threat evaluation. We further explore how such innate oscillatory communication might have an impact on contextualization and specificity of "learned" fear. We illustrate the partial overlap of fear and anxiety networks that are built by the hippocampus in conjunction with amygdala and prefrontal cortex. We further propose that (mal)-adaptive interplay via (dis)-balanced oscillatory communication between the anxiety network and the fear network may determine the strength of fear memories and their resistance to extinction.
Collapse
Affiliation(s)
- Gürsel Çalışkan
- Department of Genetics & Molecular Neurobiology, Institute of Biology, Otto-von-Guericke-University Magdeburg, Leipziger Str. 44, 39120, Magdeburg, Germany. .,Center for Behavioral Brain Sciences, Universitätsplatz 2, 39106, Magdeburg, Germany.
| | - Oliver Stork
- Department of Genetics & Molecular Neurobiology, Institute of Biology, Otto-von-Guericke-University Magdeburg, Leipziger Str. 44, 39120, Magdeburg, Germany.,Center for Behavioral Brain Sciences, Universitätsplatz 2, 39106, Magdeburg, Germany
| |
Collapse
|
17
|
Lalonde R, Strazielle C. Neuroanatomical pathways underlying the effects of hypothalamo-hypophysial-adrenal hormones on exploratory activity. Rev Neurosci 2018; 28:617-648. [PMID: 28609296 DOI: 10.1515/revneuro-2016-0075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 02/16/2017] [Indexed: 12/25/2022]
Abstract
When injected via the intracerebroventricular route, corticosterone-releasing hormone (CRH) reduced exploration in the elevated plus-maze, the center region of the open-field, and the large chamber in the defensive withdrawal test. The anxiogenic action of CRH in the elevated plus-maze also occurred when infused in the basolateral amygdala, ventral hippocampus, lateral septum, bed nucleus of the stria terminalis, nucleus accumbens, periaqueductal grey, and medial frontal cortex. The anxiogenic action of CRH in the defensive withdrawal test was reproduced when injected in the locus coeruleus, while the amygdala, hippocampus, lateral septum, nucleus accumbens, and lateral globus pallidus contribute to center zone exploration in the open-field. In addition to elevated plus-maze and open-field tests, the amygdala appears as a target region for CRH-mediated anxiety in the elevated T-maze. Thus, the amygdala is the principal brain region identified with these three tests, and further research must identify the neural circuits underlying this form of anxiety.
Collapse
Affiliation(s)
| | - Catherine Strazielle
- , Laboratoire 'Stress, Immunité, Pathogènes' EA 7300 and Service de Microscopie Electronique, Faculté de Médecine
| |
Collapse
|
18
|
Mikhaylova M, Bär J, van Bommel B, Schätzle P, YuanXiang P, Raman R, Hradsky J, Konietzny A, Loktionov EY, Reddy PP, Lopez-Rojas J, Spilker C, Kobler O, Raza SA, Stork O, Hoogenraad CC, Kreutz MR. Caldendrin Directly Couples Postsynaptic Calcium Signals to Actin Remodeling in Dendritic Spines. Neuron 2018; 97:1110-1125.e14. [PMID: 29478916 DOI: 10.1016/j.neuron.2018.01.046] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 12/18/2017] [Accepted: 01/26/2018] [Indexed: 11/19/2022]
Abstract
Compartmentalization of calcium-dependent plasticity allows for rapid actin remodeling in dendritic spines. However, molecular mechanisms for the spatio-temporal regulation of filamentous actin (F-actin) dynamics by spinous Ca2+-transients are still poorly defined. We show that the postsynaptic Ca2+ sensor caldendrin orchestrates nano-domain actin dynamics that are essential for actin remodeling in the early phase of long-term potentiation (LTP). Steep elevation in spinous [Ca2+]i disrupts an intramolecular interaction of caldendrin and allows cortactin binding. The fast on and slow off rate of this interaction keeps cortactin in an active conformation, and protects F-actin at the spine base against cofilin-induced severing. Caldendrin gene knockout results in higher synaptic actin turnover, altered nanoscale organization of spinous F-actin, defects in structural spine plasticity, LTP, and hippocampus-dependent learning. Collectively, the data indicate that caldendrin-cortactin directly couple [Ca2+]i to preserve a minimal F-actin pool that is required for actin remodeling in the early phase of LTP.
Collapse
Affiliation(s)
- Marina Mikhaylova
- Emmy Noether Group "Neuronal Protein Transport," Center for Molecular Neurobiology, ZMNH, University Medical Center Hamburg-Eppendorf, Hamburg 20251, Germany; RG Neuroplasticity, Leibniz-Institute for Neurobiology, Magdeburg 39118, Germany; Cell Biology, Faculty of Science, Utrecht University, Utrecht 3584 CH, the Netherlands.
| | - Julia Bär
- Emmy Noether Group "Neuronal Protein Transport," Center for Molecular Neurobiology, ZMNH, University Medical Center Hamburg-Eppendorf, Hamburg 20251, Germany; RG Neuroplasticity, Leibniz-Institute for Neurobiology, Magdeburg 39118, Germany
| | - Bas van Bommel
- Emmy Noether Group "Neuronal Protein Transport," Center for Molecular Neurobiology, ZMNH, University Medical Center Hamburg-Eppendorf, Hamburg 20251, Germany
| | - Philipp Schätzle
- Cell Biology, Faculty of Science, Utrecht University, Utrecht 3584 CH, the Netherlands
| | - PingAn YuanXiang
- RG Neuroplasticity, Leibniz-Institute for Neurobiology, Magdeburg 39118, Germany
| | - Rajeev Raman
- RG Neuroplasticity, Leibniz-Institute for Neurobiology, Magdeburg 39118, Germany
| | - Johannes Hradsky
- RG Neuroplasticity, Leibniz-Institute for Neurobiology, Magdeburg 39118, Germany
| | - Anja Konietzny
- Emmy Noether Group "Neuronal Protein Transport," Center for Molecular Neurobiology, ZMNH, University Medical Center Hamburg-Eppendorf, Hamburg 20251, Germany
| | - Egor Y Loktionov
- State Lab for Photon Energetics, Bauman Moscow State University, Moscow 105005, Russia
| | | | - Jeffrey Lopez-Rojas
- RG Neuroplasticity, Leibniz-Institute for Neurobiology, Magdeburg 39118, Germany
| | - Christina Spilker
- RG Neuroplasticity, Leibniz-Institute for Neurobiology, Magdeburg 39118, Germany
| | - Oliver Kobler
- Combinatorial Neuroimaging Core Facility (CNI), Leibniz Institute for Neurobiology, Magdeburg 39118, Germany
| | - Syed Ahsan Raza
- Institute of Biology, Otto von Guericke University, Magdeburg 39120, Germany
| | - Oliver Stork
- Institute of Biology, Otto von Guericke University, Magdeburg 39120, Germany
| | - Casper C Hoogenraad
- Cell Biology, Faculty of Science, Utrecht University, Utrecht 3584 CH, the Netherlands
| | - Michael R Kreutz
- RG Neuroplasticity, Leibniz-Institute for Neurobiology, Magdeburg 39118, Germany; Leibniz Group "Dendritic Organelles and Synaptic Function," Center for Molecular Neurobiology, ZMNH, University Medical Center Hamburg-Eppendorf, Hamburg 20251, Germany.
| |
Collapse
|
19
|
Berkecz R, Tömösi F, Körmöczi T, Szegedi V, Horváth J, Janáky T. Comprehensive phospholipid and sphingomyelin profiling of different brain regions in mouse model of anxiety disorder using online two-dimensional (HILIC/RP)-LC/MS method. J Pharm Biomed Anal 2018; 149:308-317. [DOI: 10.1016/j.jpba.2017.10.043] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 10/29/2017] [Accepted: 10/30/2017] [Indexed: 11/25/2022]
|
20
|
HIPP neurons in the dentate gyrus mediate the cholinergic modulation of background context memory salience. Nat Commun 2017; 8:189. [PMID: 28775269 PMCID: PMC5543060 DOI: 10.1038/s41467-017-00205-3] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Accepted: 06/11/2017] [Indexed: 12/24/2022] Open
Abstract
Cholinergic neuromodulation in the hippocampus controls the salience of background context memory acquired in the presence of elemental stimuli predicting an aversive reinforcement. With pharmacogenetic inhibition we here demonstrate that hilar perforant path-associated (HIPP) cells of the dentate gyrus mediate the devaluation of background context memory during Pavlovian fear conditioning. The salience adjustment is sensitive to reduction of hilar neuropeptide Y (NPY) expression via dominant negative CREB expression in HIPP cells and to acute blockage of NPY-Y1 receptors in the dentate gyrus during conditioning. We show that NPY transmission and HIPP cell activity contribute to inhibitory effects of acetylcholine in the dentate gyrus and that M1 muscarinic receptors mediate the cholinergic activation of HIPP cells as well as their control of background context salience. Our data provide evidence for a peptidergic local circuit in the dentate gyrus that mediates the cholinergic encoding of background context salience during fear memory acquisition. Intra-hippocampal circuits are essential for associating a background context with behaviorally salient stimuli and involve cholinergic modulation at SST+ interneurons. Here the authors show that the salience of the background context memory is modulated through muscarinic activation of NPY+ hilar perforant path associated interneurons and NPY signaling in the dentate gyrus.
Collapse
|
21
|
Nie L, Wei G, Peng S, Qu Z, Yang Y, Yang Q, Huang X, Liu J, Zhuang Z, Yang X. Melatonin ameliorates anxiety and depression-like behaviors and modulates proteomic changes in triple transgenic mice of Alzheimer's disease. Biofactors 2017; 43:593-611. [PMID: 28608594 DOI: 10.1002/biof.1369] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 04/06/2017] [Accepted: 05/01/2017] [Indexed: 12/12/2022]
Abstract
Alzheimer's disease (AD) is a devastating neurodegenerative disease accompanied by neuropsychiatric symptoms, such as anxiety and depression. The levels of melatonin decrease in brains of AD patients. The potential effect of melatonin on anxiety and depression behaviors in AD and the underlying mechanisms remain unclear. In this study, we treated 10-month-old triple transgenic mice of AD (3xTg-AD) with melatonin (10 mg/kg body weight/day) for 1 month and explored the effects of melatonin on anxiety and depression-like behaviors in 3xTg-AD mice and the protein expression of hippocampal tissues. The behavioral test showed that melatonin ameliorated anxiety and depression-like behaviors of 3xTg-AD mice as measured by open field test, elevated plus maze test, forced swimming test, and tail suspension test. By carrying out two-dimensional fluorescence difference gel electrophoresis (2D-DIGE) coupled with mass spectrometry, we revealed a total of 46 differentially expressed proteins in hippocampus between the wild-type (WT) mice and non-treated 3xTg-AD mice. A total of 21 differentially expressed proteins were revealed in hippocampus between melatonin-treated and non-treated 3xTg-AD mice. Among these differentially expressed proteins, glutathione S-transferase P 1 (GSTP1) (an anxiety-associated protein) and complexin-1 (CPLX1) (a depression-associated protein) were significantly down-regulated in hippocampus of 3xTg-AD mice compared with the WT mice. The expression of these two proteins was modulated by melatonin treatment. Our study suggested that melatonin could be used as a potential candidate drug to improve the neuropsychiatric behaviors in AD via modulating the expression of the proteins (i.e. GSTP1 and CPLX1) involved in anxiety and depression behaviors. © 2017 BioFactors, 43(4):593-611, 2017.
Collapse
Affiliation(s)
- Lulin Nie
- College of Chemistry, Xiangtan University, Xiangtan, 411105, China
- Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Gang Wei
- Thyroid & Breast Surgery Department, Hubei Maternal & Children Hospital, Wuhan, 430070, China
| | - Shengming Peng
- College of Chemistry, Xiangtan University, Xiangtan, 411105, China
| | - Zhongsen Qu
- Department of Neurology, Shanghai Jiaotong University Affiliated the Sixth Hospital, Shanghai, 200233, China
| | - Ying Yang
- Department of Pathophysiology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430070, China
| | - Qian Yang
- Department of cell biology and Anatomy, LSU Health Sciences Center, New Orleans, LA, 70112
| | - Xinfeng Huang
- Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Jianjun Liu
- Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Zhixiong Zhuang
- Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Xifei Yang
- Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| |
Collapse
|
22
|
Circadian Rhythms in Fear Conditioning: An Overview of Behavioral, Brain System, and Molecular Interactions. Neural Plast 2017; 2017:3750307. [PMID: 28698810 PMCID: PMC5494081 DOI: 10.1155/2017/3750307] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 04/28/2017] [Accepted: 05/14/2017] [Indexed: 12/17/2022] Open
Abstract
The formation of fear memories is a powerful and highly evolutionary conserved mechanism that serves the behavioral adaptation to environmental threats. Accordingly, classical fear conditioning paradigms have been employed to investigate fundamental molecular processes of memory formation. Evidence suggests that a circadian regulation mechanism allows for a timestamping of such fear memories and controlling memory salience during both their acquisition and their modification after retrieval. These mechanisms include an expression of molecular clocks in neurons of the amygdala, hippocampus, and medial prefrontal cortex and their tight interaction with the intracellular signaling pathways that mediate neural plasticity and information storage. The cellular activities are coordinated across different brain regions and neural circuits through the release of glucocorticoids and neuromodulators such as acetylcholine, which integrate circadian and memory-related activation. Disturbance of this interplay by circadian phase shifts or traumatic experience appears to be an important factor in the development of stress-related psychopathology, considering these circadian components are of critical importance for optimizing therapeutic approaches to these disorders.
Collapse
|
23
|
Albrecht A, Müller I, Ardi Z, Çalışkan G, Gruber D, Ivens S, Segal M, Behr J, Heinemann U, Stork O, Richter-Levin G. Neurobiological consequences of juvenile stress: A GABAergic perspective on risk and resilience. Neurosci Biobehav Rev 2017; 74:21-43. [PMID: 28088535 DOI: 10.1016/j.neubiorev.2017.01.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 12/20/2016] [Accepted: 01/06/2017] [Indexed: 01/18/2023]
Abstract
ALBRECHT, A., MÜLLER, I., ARDI, Z., ÇALIŞKAN, G., GRUBER, D., IVENS, S., SEGAL, M., BEHR, J., HEINEMANN, U., STORK, O., and RICHTER-LEVIN, G. Neurobiological consequences of juvenile stress: A GABAergic perspective on risk and resilience. NEUROSCI BIOBEHAV REV XXX-XXX, 2016.- Childhood adversity is among the most potent risk factors for developing mood and anxiety disorders later in life. Therefore, understanding how stress during childhood shapes and rewires the brain may optimize preventive and therapeutic strategies for these disorders. To this end, animal models of stress exposure in rodents during their post-weaning and pre-pubertal life phase have been developed. Such 'juvenile stress' has a long-lasting impact on mood and anxiety-like behavior and on stress coping in adulthood, accompanied by alterations of the GABAergic system within core regions for the stress processing such as the amygdala, prefrontal cortex and hippocampus. While many regionally diverse molecular and electrophysiological changes are observed, not all of them correlate with juvenile stress-induced behavioral disturbances. It rather seems that certain juvenile stress-induced alterations reflect the system's attempts to maintain homeostasis and thus promote stress resilience. Analysis tools such as individual behavioral profiling may allow the association of behavioral and neurobiological alterations more clearly and the dissection of alterations related to the pathology from those related to resilience.
Collapse
Affiliation(s)
- Anne Albrecht
- Sagol Department of Neurobiology, University of Haifa, 199 Aba-Hushi Avenue, 3498838 Haifa, Israel; The Institute for the Study of Affective Neuroscience (ISAN), 199 Aba-Hushi Avenue, 3498838 Haifa, Israel; Department of Genetics & Molecular Neurobiology, Institute of Biology, Otto-von-Guericke-University Magdeburg, Leipziger Str. 44, 39120 Magdeburg, Germany.
| | - Iris Müller
- Department of Genetics & Molecular Neurobiology, Institute of Biology, Otto-von-Guericke-University Magdeburg, Leipziger Str. 44, 39120 Magdeburg, Germany
| | - Ziv Ardi
- Sagol Department of Neurobiology, University of Haifa, 199 Aba-Hushi Avenue, 3498838 Haifa, Israel
| | - Gürsel Çalışkan
- Department of Genetics & Molecular Neurobiology, Institute of Biology, Otto-von-Guericke-University Magdeburg, Leipziger Str. 44, 39120 Magdeburg, Germany; Neuroscience Research Center, Charité University Hospital Berlin, Hufelandweg 14, 10117 Berlin, Germany
| | - David Gruber
- Neuroscience Research Center, Charité University Hospital Berlin, Hufelandweg 14, 10117 Berlin, Germany
| | - Sebastian Ivens
- Neuroscience Research Center, Charité University Hospital Berlin, Hufelandweg 14, 10117 Berlin, Germany
| | - Menahem Segal
- Department of Neurobiology, The Weizmann Institute, Herzl St 234, 7610001 Rehovot, Israel
| | - Joachim Behr
- Research Department of Experimental and Molecular Psychiatry, Department of Psychiatry and Psychotherapy, Charité University Hospital Berlin, Garystraße 5, 14195 Berlin, Germany; Department of Psychiatry, Psychotherapy and Psychosomatic, Brandenburg Medical School - Campus Neuruppin, Fehrbelliner Straße 38, 16816 Neuruppin, Germany
| | - Uwe Heinemann
- Neuroscience Research Center, Charité University Hospital Berlin, Hufelandweg 14, 10117 Berlin, Germany
| | - Oliver Stork
- Department of Genetics & Molecular Neurobiology, Institute of Biology, Otto-von-Guericke-University Magdeburg, Leipziger Str. 44, 39120 Magdeburg, Germany; Center for Behavioral Brain Sciences, Universitätsplatz 2, 39106 Magdeburg, Germany
| | - Gal Richter-Levin
- Sagol Department of Neurobiology, University of Haifa, 199 Aba-Hushi Avenue, 3498838 Haifa, Israel; The Institute for the Study of Affective Neuroscience (ISAN), 199 Aba-Hushi Avenue, 3498838 Haifa, Israel; Department of Psychology, University of Haifa, 199 Aba-Hushi Avenue, 3498838 Haifa, Israel
| |
Collapse
|
24
|
Huang NQ, Jin H, Zhou SY, Shi JS, Jin F. TLR4 is a link between diabetes and Alzheimer's disease. Behav Brain Res 2016; 316:234-244. [PMID: 27591966 DOI: 10.1016/j.bbr.2016.08.047] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 08/23/2016] [Accepted: 08/24/2016] [Indexed: 01/30/2023]
Abstract
Recently, more and more studies have shown that there is an essential link between diabetes mellitus (DM) and Alzheimer's disease (AD). In addition, innate immunity plays an important role in the occurrence and development of DM and AD, which increase the risk of developing type 2 diabetes (T2D) and AD. Although the pathogenesis of those diseases is still a matter of debate, the important role of Toll-like receptor 4 (TLR4) in the two diseases has been receiving much attention at present. TLR4 and insulin resistance do have close ties, and chronic TLR4 activation may contribute to the insulin resistance. Aside from this, TLR4-mediated chronic inflammation also causes many DM complications such as diabetic nephropathy, diabetic retinopathy and diabetic neuropathy and has a profound impact on the internal environment of the body and brain's microenvironment. In parallel, TLR4 is widely distributed in the brain and also has an important role in the central nervous system (CNS) via regulation of neuroinflammation. The cerebrum under the circumstances of insulin resistance may lead to mitochondrial dysfunction in neurons. Interestingly, in the initial stage, the activation of TLR4 has a useful scavenging effect on amyloid beta (Aβ), but chronic long-term activation leads to Aβ deposition in the brain. Therefore we speculate that the TLR4 signaling pathway may be a potential link between DM and AD.
Collapse
Affiliation(s)
- Nan-Qu Huang
- Department of Pharmacology and the Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical College, Guizhou, China
| | - Hai Jin
- Institute of Digestive Diseases of Affiliated Hospital, Zunyi Medical College, Guizhou, China
| | - Shao-Yu Zhou
- Department of Pharmacology and the Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical College, Guizhou, China; Department of Environmental Health, Indiana University, Bloomington, Indiana, United States
| | - Jing-Shan Shi
- Department of Pharmacology and the Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical College, Guizhou, China
| | - Feng Jin
- Department of Pharmacology and the Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical College, Guizhou, China.
| |
Collapse
|
25
|
Çaliskan G, Müller I, Semtner M, Winkelmann A, Raza AS, Hollnagel JO, Rösler A, Heinemann U, Stork O, Meier JC. Identification of Parvalbumin Interneurons as Cellular Substrate of Fear Memory Persistence. Cereb Cortex 2016; 26:2325-2340. [PMID: 26908632 PMCID: PMC4830301 DOI: 10.1093/cercor/bhw001] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Parvalbumin-positive (PV) basket cells provide perisomatic inhibition in the cortex and hippocampus and control generation of memory-related network activity patterns, such as sharp wave ripples (SPW-R). Deterioration of this class of fast-spiking interneurons has been observed in neuropsychiatric disorders and evidence from animal models suggests their involvement in the acquisition and extinction of fear memories. Here, we used mice with neuron type-targeted expression of the presynaptic gain-of-function glycine receptor RNA variant GlyR α3L185L to genetically enhance the network activity of PV interneurons. These mice showed reduced extinction of contextual fear memory but normal auditory cued fear memory. They furthermore displayed increase of SPW-R activity in area CA3 and CA1 and facilitated propagation of this particular network activity pattern, as determined in ventral hippocampal slice preparations. Individual freezing levels during extinction and SPW-R propagation were correlated across genotypes. The same was true for parvalbumin immunoreactivity in the ventral hippocampus, which was generally augmented in the GlyR mutant mice and correlated with individual freezing levels. Together, these results identify PV interneurons as critical cellular substrate of fear memory persistence and associated SPW-R activity in the hippocampus. Our findings may be relevant for the identification and characterization of physiological correlates for posttraumatic stress and anxiety disorders.
Collapse
Affiliation(s)
- Gürsel Çaliskan
- Institute for Neurophysiology, Charité Universitätsmedizin Berlin, Berlin 14195, Germany.,Institute of Biology, Department of Genetics and Molecular Neurobiology, Otto-von-Guericke-University, Magdeburg 39120, Germany
| | - Iris Müller
- Institute of Biology, Department of Genetics and Molecular Neurobiology, Otto-von-Guericke-University, Magdeburg39120, Germany
| | - Marcus Semtner
- Division Cell Physiology, Zoological Institute, Braunschweig38106, Germany
| | - Aline Winkelmann
- Division Cell Physiology, Zoological Institute, Braunschweig 38106, Germany.,RNA editing and Hyperexcitability Disorders Helmholtz Group, Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin 13125, Germany
| | - Ahsan S Raza
- Institute of Biology, Department of Genetics and Molecular Neurobiology, Otto-von-Guericke-University, Magdeburg39120, Germany
| | - Jan O Hollnagel
- Institute for Neurophysiology, Charité Universitätsmedizin Berlin, Berlin 14195, Germany.,Institute of Physiology and Pathophysiology, University of Heidelberg, Heidelberg 69120, Germany
| | - Anton Rösler
- Institute for Neurophysiology, Charité Universitätsmedizin Berlin, Berlin14195, Germany
| | - Uwe Heinemann
- Institute for Neurophysiology, Charité Universitätsmedizin Berlin, Berlin14195, Germany
| | - Oliver Stork
- Institute of Biology, Department of Genetics and Molecular Neurobiology, Otto-von-Guericke-University, Magdeburg 39120, Germany.,Center for Behavioral Brain Sciences, Magdeburg, Germany
| | - Jochen C Meier
- Division Cell Physiology, Zoological Institute, Braunschweig 38106, Germany.,RNA editing and Hyperexcitability Disorders Helmholtz Group, Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin 13125, Germany
| |
Collapse
|
26
|
Zhu W, Mao Z, Zhu C, Li M, Cao C, Guan Y, Yuan J, Xie G, Guan X. Adolescent exposure to cocaine increases anxiety-like behavior and induces morphologic and neurochemical changes in the hippocampus of adult rats. Neuroscience 2015; 313:174-83. [PMID: 26621120 DOI: 10.1016/j.neuroscience.2015.11.041] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 10/24/2015] [Accepted: 11/18/2015] [Indexed: 10/22/2022]
Abstract
Repeated exposure to cocaine during adolescence may affect both physical and psychological conditions in the brain, and increase the risk of psychiatric disorders and addiction behaviors in adulthood. Adolescence represents a critical development period for the hippocampus. Moreover, different regions of the hippocampus are involved in different functions. Dorsal hippocampus (dHP) has been implicated in learning and memory, whereas ventral hippocampus (vHP) plays an important role in emotional processing. In this study, the rats that were exposed to cocaine during adolescence (postnatal days, P28-P42) showed higher anxiety-like behavior in the elevated plus maze test in adulthood (P80), but displayed normal spatial learning and memory in the Morris water maze test. Furthermore, repeated exposure to cocaine during adolescence lead to alterations in morphology of pyramidal neurons, activities of astrocytes, and levels of proteins that involved in synaptic transmission, apoptosis, inflammation and addiction in both dHP and vHP of adult rats. These findings suggest that repeated exposure to cocaine during adolescence in rats may elicit morphologic and neurochemical changes in the hippocampus when the animals reach adulthood. These changes may contribute to the increased susceptibility for psychiatric disorders and addiction seen in adults.
Collapse
Affiliation(s)
- W Zhu
- Department of Human Anatomy, Nanjing Medical University, Nanjing, China
| | - Z Mao
- Department of Human Anatomy, Nanjing Medical University, Nanjing, China
| | - C Zhu
- Department of Pharmacology, Nanjing Medical University, Nanjing, China
| | - M Li
- Department of Human Anatomy, Nanjing Medical University, Nanjing, China
| | - C Cao
- Department of Pharmacology, Nanjing Medical University, Nanjing, China
| | - Y Guan
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - J Yuan
- Department of Pharmacology, Nanjing Medical University, Nanjing, China
| | - G Xie
- Department of Human Anatomy, Nanjing Medical University, Nanjing, China
| | - X Guan
- Department of Human Anatomy, Nanjing Medical University, Nanjing, China.
| |
Collapse
|
27
|
5-HT receptor-mediated modulation of granule cell inhibition after juvenile stress recovers after a second exposure to adult stress. Neuroscience 2015; 293:67-79. [DOI: 10.1016/j.neuroscience.2015.02.050] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 01/30/2015] [Accepted: 02/27/2015] [Indexed: 01/08/2023]
|
28
|
Park HJ, Lee S, Jung JW, Kim BC, Ryu JH, Kim DH. Glucocorticoid- and long-term stress-induced aberrant synaptic plasticity are mediated by activation of the glucocorticoid receptor. Arch Pharm Res 2015; 38:1204-12. [DOI: 10.1007/s12272-015-0548-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Accepted: 01/01/2015] [Indexed: 01/05/2023]
|
29
|
Çalışkan G, Albrecht A, Hollnagel JO, Rösler A, Richter-Levin G, Heinemann U, Stork O. Long-term changes in the CA3 associative network of fear-conditioned mice. Stress 2015; 18:188-97. [PMID: 25556979 DOI: 10.3109/10253890.2015.1004628] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The CA3 associative network plays a critical role in the generation of network activity patterns related to emotional state and fear memory. We investigated long-term changes in the corticosterone (CORT)-sensitive function of this network following fear conditioning and fear memory reactivation. In acute slice preparations from mice trained in either condition, the ratio of orthodromic population spike (PS) to antidromic PS was reduced compared to unconditioned animals, indicating a decrease in efficacy of neuronal coupling within the associative CA3 network. However, spontaneous sharp wave-ripples (SW-R), which are thought to arise from this network, remained unaltered. Following CORT application, we observed an increase in orthodromic PS and a normalization to control levels of their ratio to antidromic PS, while SW-R increased in slices of fear conditioned and fear reactivated mice, but not in slices of unconditioned controls. Together with our previous observations of altered hippocampal gamma activity under these learning paradigms, these data suggest that fear conditioning and fear reactivation lastingly alters the CORT-sensitive configuration of different network activity patterns generated by the CA3 associational network. Observed changes in the mRNA expression of receptors for glutamate, GABA and cannabinoids in the stratum pyramidale of area CA3 may provide a molecular mechanism for these adaptive changes.
Collapse
MESH Headings
- Animals
- Anti-Inflammatory Agents/pharmacology
- CA3 Region, Hippocampal/drug effects
- CA3 Region, Hippocampal/metabolism
- CA3 Region, Hippocampal/physiology
- Conditioning, Psychological/physiology
- Corticosterone/pharmacology
- Emotions
- Fear
- Hippocampus/drug effects
- Hippocampus/physiology
- Male
- Memory/physiology
- Mice
- Multiplex Polymerase Chain Reaction
- Nerve Tissue Proteins/genetics
- Neural Pathways/physiology
- Neurons/drug effects
- Neurons/physiology
- Patch-Clamp Techniques
- RNA, Messenger/drug effects
- RNA, Messenger/metabolism
- Receptor, Cannabinoid, CB1/genetics
- Receptors, AMPA/genetics
- Receptors, GABA-A/genetics
- Receptors, N-Methyl-D-Aspartate/genetics
Collapse
Affiliation(s)
- Gürsel Çalışkan
- Department of Genetics & Molecular Neurobiology, Institute of Biology, Otto-von-Guericke-University Magdeburg , Magdeburg , Germany
| | | | | | | | | | | | | |
Collapse
|
30
|
Abyar F, Farrokhpour H. Symmetry adapted cluster–configuration interaction calculation of the photoelectron spectra of famous biological active steroids. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2014.07.040] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
31
|
Daviu N, Andero R, Armario A, Nadal R. Sex differences in the behavioural and hypothalamic-pituitary-adrenal response to contextual fear conditioning in rats. Horm Behav 2014; 66:713-23. [PMID: 25311689 DOI: 10.1016/j.yhbeh.2014.09.015] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Revised: 08/02/2014] [Accepted: 09/30/2014] [Indexed: 12/17/2022]
Abstract
In recent years, special attention is being paid to sex differences in susceptibility to disease. In this regard, there is evidence that male rats present higher levels of both cued and contextual fear conditioning than females. However, little is known about the concomitant hypothalamic-pituitary-adrenal (HPA) axis response to those situations which are critical in emotional memories. Here, we studied the behavioural and HPA responses of male and female Wistar rats to context fear conditioning using electric footshock as the aversive stimulus. Fear-conditioned rats showed a much greater ACTH and corticosterone response than those merely exposed to the fear conditioning chamber without receiving shocks. Moreover, males presented higher levels of freezing whereas HPA axis response was greater in females. Accordingly, during the fear extinction tests, female rats consistently showed less freezing and higher extinction rate, but greater HPA activation than males. Exposure to an open-field resulted in lower activity/exploration in fear-conditioned males, but not in females, suggesting greater conditioned cognitive generalization in males than females. It can be concluded that important sex differences in fear conditioning are observed in both freezing and HPA activation, but the two sets of variables are affected in the opposite direction: enhanced behavioural impact in males, but enhanced HPA responsiveness in females. Thus, the role of sex differences on fear-related stimuli may depend on the variables chosen to evaluate it, the greater responsiveness of the HPA axis in females perhaps being an important factor to be further explored.
Collapse
Affiliation(s)
- Núria Daviu
- Institut de Neurociències and Red de Transtornos Adictivos (RTA), Universitat Autònoma de Barcelona, Cerdanyola del Vallès 08193, Spain; Animal Physiology (School of Biosciences), Universitat Autònoma de Barcelona, Cerdanyola del Vallès 08193, Spain
| | - Raül Andero
- Institut de Neurociències and Red de Transtornos Adictivos (RTA), Universitat Autònoma de Barcelona, Cerdanyola del Vallès 08193, Spain; Animal Physiology (School of Biosciences), Universitat Autònoma de Barcelona, Cerdanyola del Vallès 08193, Spain
| | - Antonio Armario
- Institut de Neurociències and Red de Transtornos Adictivos (RTA), Universitat Autònoma de Barcelona, Cerdanyola del Vallès 08193, Spain; Animal Physiology (School of Biosciences), Universitat Autònoma de Barcelona, Cerdanyola del Vallès 08193, Spain.
| | - Roser Nadal
- Institut de Neurociències and Red de Transtornos Adictivos (RTA), Universitat Autònoma de Barcelona, Cerdanyola del Vallès 08193, Spain; Psychobiology (School of Psychology), Universitat Autònoma de Barcelona, Cerdanyola del Vallès 08193, Spain.
| |
Collapse
|
32
|
Çalışkan G, Schulz SB, Gruber D, Behr J, Heinemann U, Gerevich Z. Corticosterone and corticotropin-releasing factor acutely facilitate gamma oscillations in the hippocampus in vitro. Eur J Neurosci 2014; 41:31-44. [PMID: 25306895 DOI: 10.1111/ejn.12750] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2014] [Revised: 09/06/2014] [Accepted: 09/09/2014] [Indexed: 12/21/2022]
Abstract
Stressful experiences do not only cause peripheral changes in stress hormone levels, but also affect central structures such as the hippocampus, implicated in spatial orientation, stress evaluation, and learning and memory. It has been suggested that formation of memory traces is dependent on hippocampal gamma oscillations observed during alert behaviour and rapid eye movement sleep. Furthermore, during quiescent behaviour, sharp wave-ripple (SW-R) activity emerges. These events provide a temporal window during which reactivation of memory ensembles occur. We hypothesized that stress-responsive modulators, such as corticosterone (CORT), corticotropin-releasing factor (CRF) and the neurosteroid 3α, 21-dihydroxy-5α-pregnan-20-one (THDOC) are able to modulate gamma oscillations and SW-Rs. Using in vitro hippocampal slices, we studied acute and subacute (2 h) impact of these agents on gamma oscillations in area cornu ammonis 3 of the ventral hippocampus induced by acetylcholine (10 μm) combined with physostigmine (2 μm). CORT increased the gamma oscillations in a dose-dependent fashion. This effect was mediated by glucocorticoid receptors. Likewise, CRF augmented gamma oscillations via CRF type 1 receptor. Lastly, THDOC was found to diminish cholinergic gamma oscillations in a dose-dependent manner. Neither CORT, CRF nor THDOC modulated gamma power when pre-applied for 1 h, 2 h before the induction of gamma oscillations. Interestingly, stress-related neuromodulators had rather mild effects on spontaneous SW-R compared with their effects on gamma oscillations. These data suggest that the alteration of hippocampal gamma oscillation strength in vitro by stress-related agents is an acute process, permitting fast adaptation to new attention-requiring situations in vivo.
Collapse
Affiliation(s)
- Gürsel Çalışkan
- Institute of Neurophysiology, Charité Universitätsmedizin Berlin, Charitéplatz 1, D-10117, Berlin, Germany
| | | | | | | | | | | |
Collapse
|
33
|
Müller I, Obata K, Richter-Levin G, Stork O. GAD65 haplodeficiency conveys resilience in animal models of stress-induced psychopathology. Front Behav Neurosci 2014; 8:265. [PMID: 25147515 PMCID: PMC4124590 DOI: 10.3389/fnbeh.2014.00265] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Accepted: 07/17/2014] [Indexed: 12/19/2022] Open
Abstract
GABAergic mechanisms are critically involved in the control of fear and anxiety, but their role in the development of stress-induced psychopathologies, including post-traumatic stress disorder (PTSD) and mood disorders is not sufficiently understood. We studied these functions in two established mouse models of risk factors for stress-induced psychopathologies employing variable juvenile stress and/or social isolation. A battery of emotional tests in adulthood revealed the induction of contextually generalized fear, anxiety, hyperarousal and depression-like symptoms in these paradigms. These reflect the multitude and complexity of stress effects in human PTSD patients. With factor analysis we were able to identify parameters that reflect these different behavioral domains in stressed animals and thus provide a basis for an integrated scoring of affectedness more closely resembling the clinical situation than isolated parameters. To test the applicability of these models to genetic approaches we further tested the role of GABA using heterozygous mice with targeted mutation of the GABA synthesizing enzyme GAD65 [GAD65(+/−) mice], which show a delayed postnatal increase in tissue GABA content in limbic and cortical brain areas. Unexpectedly, GAD65(+/−) mice did not show changes in exploratory activity regardless of the stressor type and were after the variable juvenile stress procedure protected from the development of contextual generalization in an auditory fear conditioning experiment. Our data demonstrate the complex nature of behavioral alterations in rodent models of stress-related psychopathologies and suggest that GAD65 haplodeficiency, likely through its effect on the postnatal maturation of GABAergic transmission, conveys resilience to some of these stress-induced effects.
Collapse
Affiliation(s)
- Iris Müller
- Department of Genetics and Molecular Neurobiology, Institute of Biology, Otto-von-Guericke University Magdeburg, Germany
| | - Kunihiko Obata
- National Institute for Physiological Sciences Okazaki, Aichi, Japan
| | - Gal Richter-Levin
- Department of Neurobiology and Ethology and Department of Psychology, Institute for the Study of Affective Neuroscience, University of Haifa Haifa, Israel
| | - Oliver Stork
- Department of Genetics and Molecular Neurobiology, Institute of Biology, Otto-von-Guericke University Magdeburg, Germany ; Center for Behavioural Brain Sciences Magdeburg, Germany
| |
Collapse
|
34
|
Ago Y, Tanaka T, Ota Y, Kitamoto M, Imoto E, Takuma K, Matsuda T. Social crowding in the night-time reduces an anxiety-like behavior and increases social interaction in adolescent mice. Behav Brain Res 2014; 270:37-46. [DOI: 10.1016/j.bbr.2014.04.047] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 04/25/2014] [Accepted: 04/28/2014] [Indexed: 11/30/2022]
|
35
|
Greenberg A, Ward-Flanagan R, Dickson CT, Treit D. ANI inactivation: Unconditioned anxiolytic effects of anisomycin in the ventral hippocampus. Hippocampus 2014; 24:1308-16. [DOI: 10.1002/hipo.22312] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/29/2014] [Indexed: 12/22/2022]
Affiliation(s)
| | | | - Clayton T. Dickson
- Centre for Neuroscience; University of Alberta; Edmonton Alberta
- Department of Psychology; University of Alberta; Edmonton Alberta
- Department of Physiology; University of Alberta; Edmonton Alberta
| | - Dallas Treit
- Centre for Neuroscience; University of Alberta; Edmonton Alberta
- Department of Psychology; University of Alberta; Edmonton Alberta
| |
Collapse
|
36
|
High-dose corticosterone after fear conditioning selectively suppresses fear renewal by reducing anxiety-like response. Pharmacol Biochem Behav 2014; 124:188-95. [PMID: 24933336 DOI: 10.1016/j.pbb.2014.06.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2014] [Revised: 05/22/2014] [Accepted: 06/07/2014] [Indexed: 11/21/2022]
Abstract
Exposure therapy is widely used to treat anxiety disorders, including posttraumatic stress disorder (PTSD). However, preventing the return of fear is still a major challenge after this behavioral treatment. An increasing number of studies suggest that high-dose glucocorticoid treatment immediately after trauma can alleviate the symptoms of PTSD in humans. Unknown is whether high-dose glucocorticoid treatment following fear conditioning suppresses the return of fear. In the present study, a typical fear renewal paradigm (AAB) was used, in which the fear response to an auditory cue can be restored in a novel context (context B) when both training and extinction occur in the same context (context A). We trained rats for auditory fear conditioning and administered corticosterone (CORT; 5 and 25mg/kg, i.p.) or vehicle with different delays (1 and 24h). Forty-eight hours after drug injection, extinction was conducted with no drug in the training context, followed by a test of tone-induced freezing behavior in the same (AAA) or a shifted (AAB) context. Both immediate and delayed administration of high-dose CORT after fear conditioning reduced fear renewal. To examine the anxiolytic effect of CORT, independent rats were trained for cued or contextual fear conditioning, followed by an injection of CORT (5 and 25mg/kg, i.p.) or vehicle at a 1 or 24h delay. One week later, anxiety-like behavior was assessed in the elevated plus maze (EPM) before and after fear expression. We found that high-dose CORT decreased anxiety-like behavior without changing tone- or context-induced freezing. These findings indicate that a single high-dose CORT administration given after fear conditioning may selectively suppress fear renewal by reducing anxiety-like behavior and not by altering the consolidation, retrieval, or extinction of fear memory.
Collapse
|
37
|
Albrecht A, Thiere M, Bergado-Acosta JR, Poranzke J, Müller B, Stork O. Circadian modulation of anxiety: a role for somatostatin in the amygdala. PLoS One 2013; 8:e84668. [PMID: 24376834 PMCID: PMC3869835 DOI: 10.1371/journal.pone.0084668] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Accepted: 11/18/2013] [Indexed: 12/30/2022] Open
Abstract
Pharmacological evidence suggests that the neuropeptide somatostatin (SST) exerts anxiolytic action via the amygdala, but findings concerning the putative role of endogenous SST in the regulation of emotional responses are contradictory. We hypothesized that an endogenous regulation of SST expression over the course of the day may determine its function and tested both SST gene expression and the behavior of SST knock out (SST-/-) mice in different aversive tests in relation to circadian rhythm. In an open field and a light/dark avoidance test, SST-/- mice showed significant hyperactivity and anxiety-like behavior during the second, but not during the first half of the active phase, failing to show the circadian modulation of behavior that was evident in their wild type littermates. Behavioral differences occurred independently of changes of intrinsically motivated activity in the home cage. A circadian regulation of SST mRNA and protein expression that was evident in the basolateral complex of the amygdala of wild type mice may provide a neuronal substrate for the observed behavior. However, fear memory towards auditory cue or the conditioning context displayed neither a time- nor genotype-dependent modulation. Together this indicates that SST, in a circadian manner and putatively via its regulation of expression in the amygdala, modulates behavior responding to mildly aversive conditions in mice.
Collapse
Affiliation(s)
- Anne Albrecht
- Department of Genetics & Molecular Neurobiology, Institute of Biology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
- * E-mail:
| | - Marlen Thiere
- Department of Genetics & Molecular Neurobiology, Institute of Biology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Jorge Ricardo Bergado-Acosta
- Department of Genetics & Molecular Neurobiology, Institute of Biology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Janine Poranzke
- Department of Genetics & Molecular Neurobiology, Institute of Biology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Bettina Müller
- Department of Genetics & Molecular Neurobiology, Institute of Biology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
- Center for Behavioural Brain Science, Magdeburg, Germany
| | - Oliver Stork
- Department of Genetics & Molecular Neurobiology, Institute of Biology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
- Center for Behavioural Brain Science, Magdeburg, Germany
| |
Collapse
|
38
|
Headley DB, Paré D. In sync: gamma oscillations and emotional memory. Front Behav Neurosci 2013; 7:170. [PMID: 24319416 PMCID: PMC3836200 DOI: 10.3389/fnbeh.2013.00170] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Accepted: 11/03/2013] [Indexed: 11/26/2022] Open
Abstract
Emotional experiences leave vivid memories that can last a lifetime. The emotional facilitation of memory has been attributed to the engagement of diffusely projecting neuromodulatory systems that enhance the consolidation of synaptic plasticity in regions activated by the experience. This process requires the propagation of signals between brain regions, and for those signals to induce long-lasting synaptic plasticity. Both of these demands are met by gamma oscillations, which reflect synchronous population activity on a fast timescale (35-120 Hz). Regions known to participate in the formation of emotional memories, such as the basolateral amygdala, also promote gamma-band activation throughout cortical and subcortical circuits. Recent studies have demonstrated that gamma oscillations are enhanced during emotional situations, coherent between regions engaged by salient stimuli, and predict subsequent memory for cues associated with aversive stimuli. Furthermore, neutral stimuli that come to predict emotional events develop enhanced gamma oscillations, reflecting altered processing in the brain, which may underpin how past emotional experiences color future learning and memory.
Collapse
Affiliation(s)
- Drew B. Headley
- Center for Molecular and Behavioral Neuroscience, Rutgers, The State University of New JerseyNewark, NJ, USA
| | | |
Collapse
|
39
|
Schmidt M, Abraham W, Maroun M, Stork O, Richter-Levin G. Stress-induced metaplasticity: From synapses to behavior. Neuroscience 2013; 250:112-20. [DOI: 10.1016/j.neuroscience.2013.06.059] [Citation(s) in RCA: 95] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Revised: 06/26/2013] [Accepted: 06/26/2013] [Indexed: 01/29/2023]
|
40
|
Daulatzai MA. Neurotoxic Saboteurs: Straws that Break the Hippo’s (Hippocampus) Back Drive Cognitive Impairment and Alzheimer’s Disease. Neurotox Res 2013; 24:407-59. [DOI: 10.1007/s12640-013-9407-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Revised: 06/06/2013] [Accepted: 06/17/2013] [Indexed: 12/29/2022]
|