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Escobedo A, Holloway SA, Votoupal M, Cone AL, Skelton H, Legaria AA, Ndiokho I, Floyd T, Kravitz AV, Bruchas MR, Norris AJ. Glutamatergic supramammillary nucleus neurons respond to threatening stressors and promote active coping. eLife 2024; 12:RP90972. [PMID: 38829200 PMCID: PMC11147510 DOI: 10.7554/elife.90972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024] Open
Abstract
Threat-response neural circuits are conserved across species and play roles in normal behavior and psychiatric diseases. Maladaptive changes in these neural circuits contribute to stress, mood, and anxiety disorders. Active coping in response to stressors is a psychosocial factor associated with resilience against stress-induced mood and anxiety disorders. The neural circuitry underlying active coping is poorly understood, but the functioning of these circuits could be key for overcoming anxiety and related disorders. The supramammillary nucleus (SuM) has been suggested to be engaged by threat. SuM has many projections and a poorly understood diversity of neural populations. In studies using mice, we identified a unique population of glutamatergic SuM neurons (SuMVGLUT2+::POA) based on projection to the preoptic area of the hypothalamus (POA) and found SuMVGLUT2+::POA neurons have extensive arborizations. SuMVGLUT2+::POA neurons project to brain areas that mediate features of the stress and threat responses including the paraventricular nucleus thalamus (PVT), periaqueductal gray (PAG), and habenula (Hb). Thus, SuMVGLUT2+::POA neurons are positioned as a hub, connecting to areas implicated in regulating stress responses. Here we report SuMVGLUT2+::POA neurons are recruited by diverse threatening stressors, and recruitment correlated with active coping behaviors. We found that selective photoactivation of the SuMVGLUT2+::POA population drove aversion but not anxiety like behaviors. Activation of SuMVGLUT2+::POA neurons in the absence of acute stressors evoked active coping like behaviors and drove instrumental behavior. Also, activation of SuMVGLUT2+::POA neurons was sufficient to convert passive coping strategies to active behaviors during acute stress. In contrast, we found activation of GABAergic (VGAT+) SuM neurons (SuMVGAT+) neurons did not alter drive aversion or active coping, but termination of photostimulation was followed by increased mobility in the forced swim test. These findings establish a new node in stress response circuitry that has projections to many brain areas and evokes flexible active coping behaviors.
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Affiliation(s)
- Abraham Escobedo
- Department of Anesthesiology, Washington University in St. LouisSt. LouisUnited States
| | - Salli-Ann Holloway
- Department of Anesthesiology, Washington University in St. LouisSt. LouisUnited States
| | - Megan Votoupal
- Department of Medicine, Northwestern University Feinberg School of MedicineChicagoUnited States
| | - Aaron L Cone
- Department of Anesthesiology, Washington University in St. LouisSt. LouisUnited States
| | - Hannah Skelton
- Department of Anesthesiology, Washington University in St. LouisSt. LouisUnited States
| | - Alex A Legaria
- Department of Neuroscience, Washington University in St. LouisSt. LouisUnited States
- Department of Psychiatry, Washington University in St. LouisSt. LouisUnited States
| | - Imeh Ndiokho
- Medical College of WisconsinMilwaukeeUnited States
| | - Tasheia Floyd
- Department of Obstetrics and Gynecology, Washington University in St. LouisSt. LouisUnited States
| | - Alexxai V Kravitz
- Department of Anesthesiology, Washington University in St. LouisSt. LouisUnited States
- Department of Neuroscience, Washington University in St. LouisSt. LouisUnited States
- Department of Psychiatry, Washington University in St. LouisSt. LouisUnited States
| | - Michael R Bruchas
- Center for Neurobiology of Addiction, Pain, and Emotion University of WashingtonSeattleUnited States
- Department of Anesthesiology and Pain Medicine University of WashingtonSeattleUnited States
- Department of Pharmacology University of WashingtonSeattleUnited States
- Department of Bioengineering University of WashingtonSeattleUnited States
| | - Aaron J Norris
- Department of Anesthesiology, Washington University in St. LouisSt. LouisUnited States
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Froula JM, Rose JJ, Krook-Magnuson C, Krook-Magnuson E. Distinct functional classes of CA1 hippocampal interneurons are modulated by cerebellar stimulation in a coordinated manner. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.14.594213. [PMID: 38798335 PMCID: PMC11118308 DOI: 10.1101/2024.05.14.594213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
There is mounting evidence that the cerebellum impacts hippocampal functioning, but the impact of the cerebellum on hippocampal interneurons remains obscure. Using miniscopes in freely behaving animals, we find optogenetic stimulation of Purkinje cells alters the calcium activity of a large percentage of CA1 interneurons. This includes both increases and decreases in activity. Remarkably, this bidirectional impact occurs in a coordinated fashion, in line with interneurons' functional properties. Specifically, CA1 interneurons activated by cerebellar stimulation are commonly locomotion-active, while those inhibited by cerebellar stimulation are commonly rest-active interneurons. We additionally find that subsets of CA1 interneurons show altered activity during object investigations, suggesting a role in the processing of objects in space. Importantly, these neurons also show coordinated modulation by cerebellar stimulation: CA1 interneurons that are activated by cerebellar stimulation are more likely to be activated, rather than inhibited, during object investigations, while interneurons that show decreased activity during cerebellar stimulation show the opposite profile. Therefore, CA1 interneurons play a role in object processing and in cerebellar impacts on the hippocampus, providing insight into previously noted altered CA1 processing of objects in space with cerebellar stimulation. We examined two different stimulation locations (IV/V Vermis; Simplex) and two different stimulation approaches (7Hz or a single 1s light pulse) - in all cases, the cerebellum induces similar coordinated CA1 interneuron changes congruent with an explorative state. Overall, our data show that the cerebellum impacts CA1 interneurons in a bidirectional and coordinated fashion, positioning them to play an important role in cerebello-hippocampal communication. Significance Statement Acute manipulation of the cerebellum can affect the activity of cells in CA1, and perturbing normal cerebellar functioning can affect hippocampal-dependent spatial processing, including the processing of objects in space. Despite the importance of interneurons on the local hippocampal circuit, it was unknown how cerebellar activation impacts CA1 inhibitory neurons. We find that stimulating the cerebellum robustly affects multiple populations of CA1 interneurons in a bidirectional, coordinated manner, according to their functional profiles during behavior, including locomotion and object investigations. Our work also provides support for a role of CA1 interneurons in spatial processing of objects, with populations of interneurons showing altered activity during object investigations.
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Mocellin P, Barnstedt O, Luxem K, Kaneko H, Vieweg S, Henschke JU, Dalügge D, Fuhrmann F, Karpova A, Pakan JMP, Kreutz MR, Mikulovic S, Remy S. A septal-ventral tegmental area circuit drives exploratory behavior. Neuron 2024; 112:1020-1032.e7. [PMID: 38266645 DOI: 10.1016/j.neuron.2023.12.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 11/10/2023] [Accepted: 12/20/2023] [Indexed: 01/26/2024]
Abstract
To survive, animals need to balance their exploratory drive with their need for safety. Subcortical circuits play an important role in initiating and modulating movement based on external demands and the internal state of the animal; however, how motivation and onset of locomotion are regulated remain largely unresolved. Here, we show that a glutamatergic pathway from the medial septum and diagonal band of Broca (MSDB) to the ventral tegmental area (VTA) controls exploratory locomotor behavior in mice. Using a self-supervised machine learning approach, we found an overrepresentation of exploratory actions, such as sniffing, whisking, and rearing, when this projection is optogenetically activated. Mechanistically, this role relies on glutamatergic MSDB projections that monosynaptically target a subset of both glutamatergic and dopaminergic VTA neurons. Taken together, we identified a glutamatergic basal forebrain to midbrain circuit that initiates locomotor activity and contributes to the expression of exploration-associated behavior.
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Affiliation(s)
- Petra Mocellin
- Leibniz Institute for Neurobiology (LIN), Magdeburg 39118, Germany; International Max Planck Research School for Brain and Behavior (IMPRS), Bonn 53175, Germany.
| | - Oliver Barnstedt
- Leibniz Institute for Neurobiology (LIN), Magdeburg 39118, Germany
| | - Kevin Luxem
- Leibniz Institute for Neurobiology (LIN), Magdeburg 39118, Germany
| | - Hiroshi Kaneko
- Leibniz Institute for Neurobiology (LIN), Magdeburg 39118, Germany
| | - Silvia Vieweg
- Leibniz Institute for Neurobiology (LIN), Magdeburg 39118, Germany
| | - Julia U Henschke
- Leibniz Institute for Neurobiology (LIN), Magdeburg 39118, Germany
| | - Dennis Dalügge
- Leibniz Institute for Neurobiology (LIN), Magdeburg 39118, Germany; International Max Planck Research School for Brain and Behavior (IMPRS), Bonn 53175, Germany
| | - Falko Fuhrmann
- Leibniz Institute for Neurobiology (LIN), Magdeburg 39118, Germany
| | - Anna Karpova
- Leibniz Institute for Neurobiology (LIN), Magdeburg 39118, Germany; Center for Behavioral Brain Sciences (CBBS), Magdeburg 39106, Germany
| | - Janelle M P Pakan
- Leibniz Institute for Neurobiology (LIN), Magdeburg 39118, Germany; German Center for Neurodegenerative Diseases (DZNE), Magdeburg 39120, Germany; Center for Behavioral Brain Sciences (CBBS), Magdeburg 39106, Germany
| | - Michael R Kreutz
- Leibniz Institute for Neurobiology (LIN), Magdeburg 39118, Germany; German Center for Neurodegenerative Diseases (DZNE), Magdeburg 39120, Germany; Center for Behavioral Brain Sciences (CBBS), Magdeburg 39106, Germany; German Center for Mental Health (DZPG), Magdeburg 39106, Germany
| | - Sanja Mikulovic
- Leibniz Institute for Neurobiology (LIN), Magdeburg 39118, Germany; Center for Behavioral Brain Sciences (CBBS), Magdeburg 39106, Germany; German Center for Mental Health (DZPG), Magdeburg 39106, Germany
| | - Stefan Remy
- Leibniz Institute for Neurobiology (LIN), Magdeburg 39118, Germany; German Center for Neurodegenerative Diseases (DZNE), Magdeburg 39120, Germany; Center for Behavioral Brain Sciences (CBBS), Magdeburg 39106, Germany; German Center for Mental Health (DZPG), Magdeburg 39106, Germany.
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Thirtamara Rajamani K, Barbier M, Lefevre A, Niblo K, Cordero N, Netser S, Grinevich V, Wagner S, Harony-Nicolas H. Oxytocin activity in the paraventricular and supramammillary nuclei of the hypothalamus is essential for social recognition memory in rats. Mol Psychiatry 2024; 29:412-424. [PMID: 38052983 PMCID: PMC11116117 DOI: 10.1038/s41380-023-02336-0] [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: 01/26/2023] [Revised: 11/09/2023] [Accepted: 11/17/2023] [Indexed: 12/07/2023]
Abstract
Oxytocin plays an important role in modulating social recognition memory. However, the direct implication of oxytocin neurons of the paraventricular nucleus of the hypothalamus (PVH) and their downstream hypothalamic targets in regulating short- and long-term forms of social recognition memory has not been fully investigated. In this study, we employed a chemogenetic approach to target the activity of PVH oxytocin neurons in male rats and found that specific silencing of this neuronal population led to an impairment in short- and long-term social recognition memory. We combined viral-mediated fluorescent labeling of oxytocin neurons with immunohistochemical techniques and identified the supramammillary nucleus (SuM) of the hypothalamus as a target of PVH oxytocinergic axonal projections in rats. We used multiplex fluorescence in situ hybridization to label oxytocin receptors in the SuM and determined that they are predominantly expressed in glutamatergic neurons, including those that project to the CA2 region of the hippocampus. Finally, we used a highly selective oxytocin receptor antagonist in the SuM to examine the involvement of oxytocin signaling in modulating short- and long-term social recognition memory and found that it is necessary for the formation of both. This study discovered a previously undescribed role for the SuM in regulating social recognition memory via oxytocin signaling and reinforced the specific role of PVH oxytocin neurons in regulating this form of memory.
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Affiliation(s)
- Keerthi Thirtamara Rajamani
- Department of Psychiatry and Seaver Autism Center for Research and Treatment at the Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Seaver Autism Center for Research and Treatment at the Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Robert Appel Alzheimer's Disease Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Marie Barbier
- Department of Psychiatry and Seaver Autism Center for Research and Treatment at the Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Seaver Autism Center for Research and Treatment at the Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Arthur Lefevre
- Department of Neuropeptide Research in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
- Cortical Systems and Behavior Laboratory, University of California San Diego, San Diego, CA, USA
| | - Kristi Niblo
- Department of Psychiatry and Seaver Autism Center for Research and Treatment at the Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Seaver Autism Center for Research and Treatment at the Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Nicholas Cordero
- CUNY School of Medicine, The City College of New York, 160 Convent Avenue, New York, NY, USA
| | - Shai Netser
- Sagol Department of Neurobiology, University of Haifa, Haifa, Israel
| | - Valery Grinevich
- Department of Neuropeptide Research in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Shlomo Wagner
- Sagol Department of Neurobiology, University of Haifa, Haifa, Israel
| | - Hala Harony-Nicolas
- Department of Psychiatry and Seaver Autism Center for Research and Treatment at the Icahn School of Medicine at Mount Sinai, New York, NY, USA.
- Seaver Autism Center for Research and Treatment at the Icahn School of Medicine at Mount Sinai, New York, NY, USA.
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
- Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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Ibrahim KM, Massaly N, Yoon HJ, Sandoval R, Widman AJ, Heuermann RJ, Williams S, Post W, Pathiranage S, Lintz T, Zec A, Park A, Yu W, Kash TL, Gereau RW, Morón JA. Dorsal hippocampus to nucleus accumbens projections drive reinforcement via activation of accumbal dynorphin neurons. Nat Commun 2024; 15:750. [PMID: 38286800 PMCID: PMC10825206 DOI: 10.1038/s41467-024-44836-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 01/04/2024] [Indexed: 01/31/2024] Open
Abstract
The hippocampus is pivotal in integrating emotional processing, learning, memory, and reward-related behaviors. The dorsal hippocampus (dHPC) is particularly crucial for episodic, spatial, and associative memory, and has been shown to be necessary for context- and cue-associated reward behaviors. The nucleus accumbens (NAc), a central structure in the mesolimbic reward pathway, integrates the salience of aversive and rewarding stimuli. Despite extensive research on dHPC→NAc direct projections, their sufficiency in driving reinforcement and reward-related behavior remains to be determined. Our study establishes that activating excitatory neurons in the dHPC is sufficient to induce reinforcing behaviors through its direct projections to the dorso-medial subregion of the NAc shell (dmNAcSh). Notably, dynorphin-containing neurons specifically contribute to dHPC-driven reinforcing behavior, even though both dmNAcSh dynorphin- and enkephalin-containing neurons are activated with dHPC stimulation. Our findings unveil a pathway governing reinforcement, advancing our understanding of the hippocampal circuity's role in reward-seeking behaviors.
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Affiliation(s)
- Khairunisa Mohamad Ibrahim
- Department of Anesthesiology, Washington University Pain Center, St. Louis, MO, 63110, USA
- Washington University in St. Louis, School of Medicine, St. Louis, MO, 63110, USA
| | - Nicolas Massaly
- Department of Anesthesiology, Washington University Pain Center, St. Louis, MO, 63110, USA
- Washington University in St. Louis, School of Medicine, St. Louis, MO, 63110, USA
- Department of Anesthesiology and Perioperative Medicine, University of California, Los Angeles, CA, 90095, USA
| | - Hye-Jean Yoon
- Department of Anesthesiology, Washington University Pain Center, St. Louis, MO, 63110, USA
- Washington University in St. Louis, School of Medicine, St. Louis, MO, 63110, USA
| | - Rossana Sandoval
- Department of Anesthesiology, Washington University Pain Center, St. Louis, MO, 63110, USA
- Washington University in St. Louis, School of Medicine, St. Louis, MO, 63110, USA
| | - Allie J Widman
- Department of Anesthesiology, Washington University Pain Center, St. Louis, MO, 63110, USA
- Washington University in St. Louis, School of Medicine, St. Louis, MO, 63110, USA
| | - Robert J Heuermann
- Department of Anesthesiology, Washington University Pain Center, St. Louis, MO, 63110, USA
- Washington University in St. Louis, School of Medicine, St. Louis, MO, 63110, USA
- Department of Neurology, Washington University Pain Center, St. Louis, MO, 63110, USA
| | - Sidney Williams
- Department of Anesthesiology, Washington University Pain Center, St. Louis, MO, 63110, USA
- Washington University in St. Louis, School of Medicine, St. Louis, MO, 63110, USA
| | - William Post
- Department of Anesthesiology, Washington University Pain Center, St. Louis, MO, 63110, USA
- Washington University in St. Louis, School of Medicine, St. Louis, MO, 63110, USA
| | - Sulan Pathiranage
- Department of Anesthesiology, Washington University Pain Center, St. Louis, MO, 63110, USA
- Washington University in St. Louis, School of Medicine, St. Louis, MO, 63110, USA
| | - Tania Lintz
- Department of Anesthesiology, Washington University Pain Center, St. Louis, MO, 63110, USA
- Washington University in St. Louis, School of Medicine, St. Louis, MO, 63110, USA
| | - Azra Zec
- Department of Anesthesiology, Washington University Pain Center, St. Louis, MO, 63110, USA
- Washington University in St. Louis, School of Medicine, St. Louis, MO, 63110, USA
| | - Ashley Park
- Department of Anesthesiology, Washington University Pain Center, St. Louis, MO, 63110, USA
- Washington University in St. Louis, School of Medicine, St. Louis, MO, 63110, USA
| | - Waylin Yu
- Bowles Center for Alcohol Studies, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, 27599, USA
- Department of Pharmacology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, 27599, USA
| | - Thomas L Kash
- Bowles Center for Alcohol Studies, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, 27599, USA
- Department of Pharmacology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, 27599, USA
| | - Robert W Gereau
- Department of Anesthesiology, Washington University Pain Center, St. Louis, MO, 63110, USA
- Washington University in St. Louis, School of Medicine, St. Louis, MO, 63110, USA
- Department of Neuroscience, Washington University in St. Louis, St. Louis, MO, 63110, USA
| | - Jose A Morón
- Department of Anesthesiology, Washington University Pain Center, St. Louis, MO, 63110, USA.
- Washington University in St. Louis, School of Medicine, St. Louis, MO, 63110, USA.
- Department of Neuroscience, Washington University in St. Louis, St. Louis, MO, 63110, USA.
- Department of Psychiatry, Washington University in St. Louis, St. Louis, MO, 63110, USA.
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Zhang Y, Tsai TH, Ezrokhi M, Stoelzel C, Cincotta AH. Tyrosine Hydroxylase Knockdown at the Hypothalamic Supramammillary Nucleus Area Induces Obesity and Glucose Intolerance. Neuroendocrinology 2023; 114:483-510. [PMID: 38128505 PMCID: PMC11098027 DOI: 10.1159/000535944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 12/14/2023] [Indexed: 12/23/2023]
Abstract
INTRODUCTION The supramammillary nucleus (SuMN) exerts influences on a wide range of brain functions including feeding and feeding-independent fuel metabolism. However, which specific neuronal type(s) within the SuMN manifest this influence has not been delineated. This study investigated the effect of SuMN tyrosine hydroxylase (TH) (rate-limiting enzyme in dopamine synthesis) knockdown (THx) on peripheral fuel metabolism. METHODS SuMN-THx was accomplished using a virus-mediated shRNA to locally knockdown TH gene expression at the SuMN. The impact of SuMN-THx was examined over 35-72 days in rats least prone to developing metabolic syndrome (MS) - female Sprague-Dawley rats resistant to the obesogenic effect of high fat diet (HFDr) and fed regular chow (RC) - upon body weight/fat, feeding, glucose tolerance, and insulin sensitivity. The influence of HFD, gender, and long-term response of SuMN-THx was subsequently investigated in female HFDr rats fed HFD, male HFDr rats fed RC, and female HFD-sensitive rats fed RC over 1 year, respectively. RESULTS SuMN-THx induced obesity and glucose intolerance, elevated plasma leptin and triglycerides, increased hepatic mRNA levels of gluconeogenic, lipogenic, and pro-inflammatory genes, reduced white adipose fatty acid oxidation rate, and altered plasma corticosterone level and hepatic circadian gene expression. Moreover, SuMN-THx increased feeding during the natural resting/fasting period and altered ghrelin feeding response suggesting ghrelin resistance. This MS-inducing effect was enhanced by HFD feeding, similarly observed in male rats and persisted over 1 year. DISCUSSION/CONCLUSION SuMN-THx induced long-term, gender-nonspecific, multiple pathophysiological changes leading to MS suggesting SuMN dopaminergic circuits communicating with other brain metabolism and behavior control centers modulate peripheral fuel metabolism.
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Liang M, Jian T, Tao J, Wang X, Wang R, Jin W, Chen Q, Yao J, Zhao Z, Yang X, Xiao J, Yang Z, Liao X, Chen X, Wang L, Qin H. Hypothalamic supramammillary neurons that project to the medial septum modulate wakefulness in mice. Commun Biol 2023; 6:1255. [PMID: 38087004 PMCID: PMC10716381 DOI: 10.1038/s42003-023-05637-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
The hypothalamic supramammillary nucleus (SuM) plays a crucial role in controlling wakefulness, but the downstream target regions participating in this control process remain unknown. Here, using circuit-specific fiber photometry and single-neuron electrophysiology together with electroencephalogram, electromyogram and behavioral recordings, we find that approximately half of SuM neurons that project to the medial septum (MS) are wake-active. Optogenetic stimulation of axonal terminals of SuM-MS projection induces a rapid and reliable transition to wakefulness from non-rapid-eye movement or rapid-eye movement sleep, and chemogenetic activation of SuMMS projecting neurons significantly increases wakefulness time and prolongs latency to sleep. Consistently, chemogenetically inhibiting these neurons significantly reduces wakefulness time and latency to sleep. Therefore, these results identify the MS as a functional downstream target of SuM and provide evidence for the modulation of wakefulness by this hypothalamic-septal projection.
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Affiliation(s)
- Mengru Liang
- Department of Anatomy, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, China
| | - Tingliang Jian
- Brain Research Center and State Key Laboratory of Trauma, Burns, and Combined Injury, Third Military Medical University, Chongqing, 400038, China
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China
| | - Jie Tao
- Advanced Institute for Brain and Intelligence, School of Medicine, Guangxi University, Nanning, 530004, China
| | - Xia Wang
- Center for Neurointelligence, School of Medicine, Chongqing University, Chongqing, 400044, China
| | - Rui Wang
- Brain Research Center and State Key Laboratory of Trauma, Burns, and Combined Injury, Third Military Medical University, Chongqing, 400038, China
| | - Wenjun Jin
- Brain Research Center and State Key Laboratory of Trauma, Burns, and Combined Injury, Third Military Medical University, Chongqing, 400038, China
| | - Qianwei Chen
- Brain Research Center and State Key Laboratory of Trauma, Burns, and Combined Injury, Third Military Medical University, Chongqing, 400038, China
| | - Jiwei Yao
- Center for Neurointelligence, School of Medicine, Chongqing University, Chongqing, 400044, China
| | - Zhikai Zhao
- Center for Neurointelligence, School of Medicine, Chongqing University, Chongqing, 400044, China
| | - Xinyu Yang
- Center for Neurointelligence, School of Medicine, Chongqing University, Chongqing, 400044, China
| | - Jingyu Xiao
- Department of Anesthesiology, Chongqing University Cancer Hospital, Chongqing, 400030, China
| | - Zhiqi Yang
- Brain Research Center and State Key Laboratory of Trauma, Burns, and Combined Injury, Third Military Medical University, Chongqing, 400038, China
| | - Xiang Liao
- Center for Neurointelligence, School of Medicine, Chongqing University, Chongqing, 400044, China
| | - Xiaowei Chen
- Brain Research Center and State Key Laboratory of Trauma, Burns, and Combined Injury, Third Military Medical University, Chongqing, 400038, China.
- Chongqing Institute for Brain and Intelligence, Guangyang Bay Laboratory, Chongqing, 400064, China.
| | - Liecheng Wang
- Department of Anatomy, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, China.
| | - Han Qin
- Center for Neurointelligence, School of Medicine, Chongqing University, Chongqing, 400044, China.
- Chongqing Institute for Brain and Intelligence, Guangyang Bay Laboratory, Chongqing, 400064, China.
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Kesner AJ, Mozaffarilegha M, Thirtamara Rajamani K, Arima Y, Harony-Nicolas H, Hashimotodani Y, Ito HT, Song J, Ikemoto S. Hypothalamic Supramammillary Control of Cognition and Motivation. J Neurosci 2023; 43:7538-7546. [PMID: 37940587 PMCID: PMC10634554 DOI: 10.1523/jneurosci.1320-23.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/07/2023] [Accepted: 08/21/2023] [Indexed: 11/10/2023] Open
Abstract
The supramammillary nucleus (SuM) is a small region in the ventromedial posterior hypothalamus. The SuM has been relatively understudied with much of the prior focus being on its connection with septo-hippocampal circuitry. Thus, most studies conducted until the 21st century examined its role in hippocampal processes, such as theta rhythm and learning/memory. In recent years, the SuM has been "rediscovered" as a crucial hub for several behavioral and cognitive processes, including reward-seeking, exploration, and social memory. Additionally, it has been shown to play significant roles in hippocampal plasticity and adult neurogenesis. This review highlights findings from recent studies using cutting-edge systems neuroscience tools that have shed light on these fascinating roles for the SuM.
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Affiliation(s)
- Andrew J Kesner
- Unit on Motivation and Arousal, Laboratory for Integrative Neuroscience, National Institute on Alcohol Abuse and Alcoholism, Intramural Research Program, National Institutes of Health, Bethesda, Maryland 20892
| | | | - Keerthi Thirtamara Rajamani
- Appel Alzheimer's Disease Research Institute, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, New York 10021
| | - Yosuke Arima
- Neurocircuitry of Motivation Section, Behavioral Neuroscience Research Branch, Intramural Research Program, National Institute on Drug Abuse, National Institutes of Health, Baltimore, Maryland 21224
- Center on Compulsive Behaviors, Intramural Research Program, National Institutes of Health, Bethesda, Maryland 20894
| | - Hala Harony-Nicolas
- Department of Psychiatry, Department of Neuroscience, Seaver Autism Center for Research and Treatment, Friedman Brain Institute, Mindich Child Health and Development Institute at the Icahn School of Medicine at Mount Sinai, New York, New York 10029
| | - Yuki Hashimotodani
- Graduate School of Brain Science, Doshisha University, Kyotanabe, Kyoto Japan 610-0394
| | - Hiroshi T Ito
- Max Planck Institute for Brain Research, Frankfurt am Main, Germany 60438
| | - Juan Song
- Department of Pharmacology, University of North Carolina, Chapel Hill, North Carolina 27599
- Neuroscience Center, University of North Carolina, Chapel Hill, North Carolina 27599
| | - Satoshi Ikemoto
- Neurocircuitry of Motivation Section, Behavioral Neuroscience Research Branch, Intramural Research Program, National Institute on Drug Abuse, National Institutes of Health, Baltimore, Maryland 21224
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9
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Xie Y, Reid CM, Granados AA, Garcia MT, Dale-Huang F, Hanson SM, Mancia W, Liu J, Adam M, Mosto O, Pisco AO, Alvarez-Buylla A, Harwell CC. Developmental origin and local signals cooperate to determine septal astrocyte identity. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.08.561428. [PMID: 37873089 PMCID: PMC10592657 DOI: 10.1101/2023.10.08.561428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
Astrocyte specification during development is influenced by both intrinsic and extrinsic factors, but the precise contribution of each remains poorly understood. Here we show that septal astrocytes from Nkx2.1 and Zic4 expressing progenitor zones are allocated into non-overlapping domains of the medial (MS) and lateral septal nuclei (LS) respectively. Astrocytes in these areas exhibit distinctive molecular and morphological features tailored to the unique cellular and synaptic circuit environment of each nucleus. Using single-nucleus (sn) RNA sequencing, we trace the developmental trajectories of cells in the septum and find that neurons and astrocytes undergo region and developmental stage-specific local cell-cell interactions. We show that expression of the classic morphogens Sonic hedgehog (Shh) and Fibroblast growth factors (Fgfs) by MS and LS neurons respectively, functions to promote the molecular specification of local astrocytes in each region. Finally, using heterotopic cell transplantation, we show that both morphological and molecular specifications of septal astrocytes are highly dependent on the local microenvironment, regardless of developmental origins. Our data highlights the complex interplay between intrinsic and extrinsic factors shaping astrocyte identities and illustrates the importance of the local environment in determining astrocyte functional specialization.
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Affiliation(s)
- Yajun Xie
- Department of Neurology, University of California, San Francisco, CA
- Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, San Francisco, CA
| | - Christopher M. Reid
- Department of Neurology, University of California, San Francisco, CA
- Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, San Francisco, CA
- Department of Neurobiology, Harvard Medical School, Boston, MA
- Ph.D. Program in Neuroscience, Harvard University, Boston, MA
| | | | - Miguel Turrero Garcia
- Department of Neurology, University of California, San Francisco, CA
- Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, San Francisco, CA
| | - Fiona Dale-Huang
- Department of Neurology, University of California, San Francisco, CA
- Department of Neurological Surgery, University of California, San Francisco, CA
| | - Sarah M. Hanson
- Department of Neurology, University of California, San Francisco, CA
- Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, San Francisco, CA
| | - Walter Mancia
- Department of Neurology, University of California, San Francisco, CA
- Department of Neurological Surgery, University of California, San Francisco, CA
| | - Jonathan Liu
- Chan Zuckerberg Biohub San Francisco, San Francisco, CA
| | - Manal Adam
- Department of Neurology, University of California, San Francisco, CA
- Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, San Francisco, CA
| | - Olivia Mosto
- Department of Neurobiology, Harvard Medical School, Boston, MA
| | | | - Arturo Alvarez-Buylla
- Department of Neurology, University of California, San Francisco, CA
- Department of Neurological Surgery, University of California, San Francisco, CA
| | - Corey C. Harwell
- Department of Neurology, University of California, San Francisco, CA
- Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, San Francisco, CA
- Chan Zuckerberg Biohub San Francisco, San Francisco, CA
- Lead contact
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10
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Ngoc KH, Kecskés A, Kepe E, Nabi L, Keeble J, Borbély É, Helyes Z. Expression of the Transient Receptor Potential Vanilloid 1 ion channel in the supramammillary nucleus and the antidepressant effects of its antagonist AMG9810 in mice. Eur Neuropsychopharmacol 2023; 73:96-107. [PMID: 37156112 DOI: 10.1016/j.euroneuro.2023.04.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 04/19/2023] [Accepted: 04/24/2023] [Indexed: 05/10/2023]
Abstract
The Transient Receptor Potential Vanilloid 1 (TRPV1) non-selective cation channel predominantly expressed in primary sensory neurons of the dorsal root and trigeminal ganglia mediates pain and neurogenic inflammation. TRPV1 mRNA and immunoreactivity were described in the central nervous system (CNS), but its precise expression pattern and function have not been clarified. Here we investigated Trpv1 mRNA expression in the mouse brain using ultrasensitive RNAScope in situ hybridization. The role of TRPV1 in anxiety, depression-like behaviors and memory functions was investigated by TRPV1-deficient mice and pharmacological antagonism by AMG9810. Trpv1 mRNA is selectively expressed in the supramammillary nucleus (SuM) co-localized with Vglut2 mRNA, but not with tyrosine hydroxylase immunopositivity demonstrating its presence in glutamatergic, but not dopaminergic neurons. TRPV1-deleted mice exhibited significantly reduced anxiety in the Light-Dark box and depression-like behaviors in the Forced Swim Test, but their performance in the Elevated Plus Maze as well as their spontaneous locomotor activity, memory and learning function in the Radial Arm Maze, Y-maze and Novel Object Recognition test were not different from WTs. AMG9810 (intraperitoneal injection 50 mg/kg) induced anti-depressant, but not anxiolytic effects. It is concluded that TRPV1 in the SuM might have functional relevance in mood regulation and TRPV1 antagonism could be a novel perspective for anti-depressant drugs.
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Affiliation(s)
- Khai Huynh Ngoc
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, Pécs, Hungary; Faculty of Sciences, University of Pécs, Pécs, Hungary
| | - Angéla Kecskés
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, Pécs, Hungary
| | - Eszter Kepe
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, Pécs, Hungary
| | - Liza Nabi
- King's College London, Institute of Pharmaceutical Science, London, United Kingdom
| | - Julie Keeble
- King's College London, Centre for Human & Applied Physiological Sciences, London, United Kingdom
| | - Éva Borbély
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, Pécs, Hungary; National Laboratory for Drug Research and Development, Budapest, Hungary.
| | - Zsuzsanna Helyes
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, Pécs, Hungary; Eötvös Loránd Research Network, Chronic Pain Research Group, University of Pécs, Hungary; National Laboratory for Drug Research and Development, Budapest, Hungary; PharmInVivo Ltd, Pécs, Hungary.
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11
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Kim S, Nam Y, Kim HS, Jung H, Jeon SG, Hong SB, Moon M. Alteration of Neural Pathways and Its Implications in Alzheimer’s Disease. Biomedicines 2022; 10:biomedicines10040845. [PMID: 35453595 PMCID: PMC9025507 DOI: 10.3390/biomedicines10040845] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/29/2022] [Accepted: 03/31/2022] [Indexed: 02/01/2023] Open
Abstract
Alzheimer’s disease (AD) is a neurodegenerative disease accompanied by cognitive and behavioral symptoms. These AD-related manifestations result from the alteration of neural circuitry by aggregated forms of amyloid-β (Aβ) and hyperphosphorylated tau, which are neurotoxic. From a neuroscience perspective, identifying neural circuits that integrate various inputs and outputs to determine behaviors can provide insight into the principles of behavior. Therefore, it is crucial to understand the alterations in the neural circuits associated with AD-related behavioral and psychological symptoms. Interestingly, it is well known that the alteration of neural circuitry is prominent in the brains of patients with AD. Here, we selected specific regions in the AD brain that are associated with AD-related behavioral and psychological symptoms, and reviewed studies of healthy and altered efferent pathways to the target regions. Moreover, we propose that specific neural circuits that are altered in the AD brain can be potential targets for AD treatment. Furthermore, we provide therapeutic implications for targeting neuronal circuits through various therapeutic approaches and the appropriate timing of treatment for AD.
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Affiliation(s)
- Sujin Kim
- Department of Biochemistry, College of Medicine, Konyang University, 158, Gwanjeodong-ro, Seo-gu, Daejeon 35365, Korea; (S.K.); (Y.N.); (H.s.K.); (H.J.); (S.G.J.); (S.B.H.)
- Research Institute for Dementia Science, Konyang University, 158, Gwanjeodong-ro, Seo-gu, Daejeon 35365, Korea
| | - Yunkwon Nam
- Department of Biochemistry, College of Medicine, Konyang University, 158, Gwanjeodong-ro, Seo-gu, Daejeon 35365, Korea; (S.K.); (Y.N.); (H.s.K.); (H.J.); (S.G.J.); (S.B.H.)
| | - Hyeon soo Kim
- Department of Biochemistry, College of Medicine, Konyang University, 158, Gwanjeodong-ro, Seo-gu, Daejeon 35365, Korea; (S.K.); (Y.N.); (H.s.K.); (H.J.); (S.G.J.); (S.B.H.)
| | - Haram Jung
- Department of Biochemistry, College of Medicine, Konyang University, 158, Gwanjeodong-ro, Seo-gu, Daejeon 35365, Korea; (S.K.); (Y.N.); (H.s.K.); (H.J.); (S.G.J.); (S.B.H.)
| | - Seong Gak Jeon
- Department of Biochemistry, College of Medicine, Konyang University, 158, Gwanjeodong-ro, Seo-gu, Daejeon 35365, Korea; (S.K.); (Y.N.); (H.s.K.); (H.J.); (S.G.J.); (S.B.H.)
| | - Sang Bum Hong
- Department of Biochemistry, College of Medicine, Konyang University, 158, Gwanjeodong-ro, Seo-gu, Daejeon 35365, Korea; (S.K.); (Y.N.); (H.s.K.); (H.J.); (S.G.J.); (S.B.H.)
| | - Minho Moon
- Department of Biochemistry, College of Medicine, Konyang University, 158, Gwanjeodong-ro, Seo-gu, Daejeon 35365, Korea; (S.K.); (Y.N.); (H.s.K.); (H.J.); (S.G.J.); (S.B.H.)
- Research Institute for Dementia Science, Konyang University, 158, Gwanjeodong-ro, Seo-gu, Daejeon 35365, Korea
- Correspondence:
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12
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Seeking motivation and reward: roles of dopamine, hippocampus and supramammillo-septal pathway. Prog Neurobiol 2022; 212:102252. [PMID: 35227866 PMCID: PMC8961455 DOI: 10.1016/j.pneurobio.2022.102252] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 02/09/2022] [Accepted: 02/23/2022] [Indexed: 01/07/2023]
Abstract
Reinforcement learning and goal-seeking behavior are thought to be mediated by midbrain dopamine neurons. However, little is known about neural substrates of curiosity and exploratory behavior, which occur in the absence of clear goal or reward. This is despite behavioral scientists having long suggested that curiosity and exploratory behaviors are regulated by an innate drive. We refer to such behavior as information-seeking behavior and propose 1) key neural substrates and 2) the concept of environment prediction error as a framework to understand information-seeking processes. The cognitive aspect of information-seeking behavior, including the perception of salience and uncertainty, involves, in part, the pathways from the posterior hypothalamic supramammillary region to the hippocampal formation. The vigor of such behavior is modulated by the following: supramammillary glutamatergic neurons; their projections to medial septal glutamatergic neurons; and the projections of medial septal glutamatergic neurons to ventral tegmental dopaminergic neurons. Phasic responses of dopaminergic neurons are characterized as signaling potentially important stimuli rather than rewards. This paper describes how novel stimuli and uncertainty trigger seeking motivation and how these neural substrates modulate information-seeking behavior.
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13
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Pennington ZT, Diego KS, Francisco TR, LaBanca AR, Lamsifer SI, Liobimova O, Shuman T, Cai DJ. ezTrack-A Step-by-Step Guide to Behavior Tracking. Curr Protoc 2021; 1:e255. [PMID: 34610215 DOI: 10.1002/cpz1.255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Tracking animal behavior by video is one of the most common tasks in neuroscience. Previously, we have validated ezTrack, a free, flexible, and easy-to-use software for the analysis of animal behavior. ezTrack's Location Tracking Module can be used for the positional analysis of an individual animal and is applicable to a wide range of behavioral tasks. Separately, ezTrack's Freeze Analysis Module is designed for the analysis of defensive freezing behavior. ezTrack supports a range of desirable tools, including options for cropping and masking portions of the field of view, defining regions of interest, producing summary data for specified portions of time, algorithms to remove the influence of electrophysiology cables and other tethers, batch processing of multiple videos, and video down-sampling. Moreover, ezTrack produces a range of interactive plots and visualizations to promote users' confidence in their results. In this protocols paper, we provide step-by-step instructions for the use of ezTrack, from tips for recording behavior to instructions for using the software for video analysis. © 2021 Wiley Periodicals LLC. Basic Protocol 1: Software environment installation Basic Protocol 2: Using the Location Tracking Module Basic Protocol 3: Using the Freeze Analysis Module.
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Affiliation(s)
- Zachary T Pennington
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Keziah S Diego
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Taylor R Francisco
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Alexa R LaBanca
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Sophia I Lamsifer
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Olga Liobimova
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Tristan Shuman
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Denise J Cai
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York
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14
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Mocellin P, Mikulovic S. The Role of the Medial Septum-Associated Networks in Controlling Locomotion and Motivation to Move. Front Neural Circuits 2021; 15:699798. [PMID: 34366795 PMCID: PMC8340000 DOI: 10.3389/fncir.2021.699798] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Accepted: 06/28/2021] [Indexed: 12/29/2022] Open
Abstract
The Medial Septum and diagonal Band of Broca (MSDB) was initially studied for its role in locomotion. However, the last several decades were focussed on its intriguing function in theta rhythm generation. Early studies relied on electrical stimulation, lesions and pharmacological manipulation, and reported an inconclusive picture regarding the role of the MSDB circuits. Recent studies using more specific methodologies have started to elucidate the differential role of the MSDB's specific cell populations in controlling both theta rhythm and behaviour. In particular, a novel theory is emerging showing that different MSDB's cell populations project to different brain regions and control distinct aspects of behaviour. While the majority of these behaviours involve movement, increasing evidence suggests that MSDB-related networks govern the motivational aspect of actions, rather than locomotion per se. Here, we review the literature that links MSDB, theta activity, and locomotion and propose open questions, future directions, and methods that could be employed to elucidate the diverse roles of the MSDB-associated networks.
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Affiliation(s)
- Petra Mocellin
- Department of Cellular Neuroscience, Leibniz Institute for Neurobiology, Magdeburg, Germany
- International Max Planck Research School for Brain and Behavior, Bonn, Germany
| | - Sanja Mikulovic
- Research Group Cognition and Emotion, Leibniz Institute for Neurobiology, Magdeburg, Germany
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