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Molas S, Freels TG, Zhao-Shea R, Lee T, Gimenez-Gomez P, Barbini M, Martin GE, Tapper AR. Dopamine control of social novelty preference is constrained by an interpeduncular-tegmentum circuit. Nat Commun 2024; 15:2891. [PMID: 38570514 PMCID: PMC10991551 DOI: 10.1038/s41467-024-47255-y] [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: 04/17/2023] [Accepted: 03/20/2024] [Indexed: 04/05/2024] Open
Abstract
Animals are inherently motivated to explore social novelty cues over familiar ones, resulting in a novelty preference (NP), although the behavioral and circuit bases underlying NP are unclear. Combining calcium and neurotransmitter sensors with fiber photometry and optogenetics in mice, we find that mesolimbic dopamine (DA) neurotransmission is strongly and predominantly activated by social novelty controlling bout length of interaction during NP, a response significantly reduced by familiarity. In contrast, interpeduncular nucleus (IPN) GABAergic neurons that project to the lateral dorsal tegmentum (LDTg) were inhibited by social novelty but activated during terminations with familiar social stimuli. Inhibition of this pathway during NP increased interaction and bout length with familiar social stimuli, while activation reduced interaction and bout length with novel social stimuli via decreasing DA neurotransmission. These data indicate interest towards novel social stimuli is encoded by mesolimbic DA which is dynamically regulated by an IPN→LDTg circuit to control NP.
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Affiliation(s)
- Susanna Molas
- Department of Neurobiology, Brudnick Neuropsychiatric Research Institute University of Massachusetts Chan Medical School 364 Plantation St, LRB, Worcester, 01605, MA, USA.
- Institute for Behavioral Genetics, University of Colorado Boulder 1480 30th St, Boulder, 80303, CO, USA.
- Department of Psychology and Neuroscience, University of Colorado Boulder 1905 Colorado Ave, Boulder, 80309, CO, USA.
| | - Timothy G Freels
- Department of Neurobiology, Brudnick Neuropsychiatric Research Institute University of Massachusetts Chan Medical School 364 Plantation St, LRB, Worcester, 01605, MA, USA
| | - Rubing Zhao-Shea
- Department of Neurobiology, Brudnick Neuropsychiatric Research Institute University of Massachusetts Chan Medical School 364 Plantation St, LRB, Worcester, 01605, MA, USA
| | - Timothy Lee
- Department of Neurobiology, Brudnick Neuropsychiatric Research Institute University of Massachusetts Chan Medical School 364 Plantation St, LRB, Worcester, 01605, MA, USA
| | - Pablo Gimenez-Gomez
- Department of Neurobiology, Brudnick Neuropsychiatric Research Institute University of Massachusetts Chan Medical School 364 Plantation St, LRB, Worcester, 01605, MA, USA
| | - Melanie Barbini
- Department of Neurobiology, Brudnick Neuropsychiatric Research Institute University of Massachusetts Chan Medical School 364 Plantation St, LRB, Worcester, 01605, MA, USA
| | - Gilles E Martin
- Department of Neurobiology, Brudnick Neuropsychiatric Research Institute University of Massachusetts Chan Medical School 364 Plantation St, LRB, Worcester, 01605, MA, USA
| | - Andrew R Tapper
- Department of Neurobiology, Brudnick Neuropsychiatric Research Institute University of Massachusetts Chan Medical School 364 Plantation St, LRB, Worcester, 01605, MA, USA.
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2
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Koppensteiner P, Bhandari P, Önal C, Borges-Merjane C, Le Monnier E, Roy U, Nakamura Y, Sadakata T, Sanbo M, Hirabayashi M, Rhee J, Brose N, Jonas P, Shigemoto R. GABA B receptors induce phasic release from medial habenula terminals through activity-dependent recruitment of release-ready vesicles. Proc Natl Acad Sci U S A 2024; 121:e2301449121. [PMID: 38346189 PMCID: PMC10895368 DOI: 10.1073/pnas.2301449121] [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: 01/26/2023] [Accepted: 01/03/2024] [Indexed: 02/15/2024] Open
Abstract
GABAB receptor (GBR) activation inhibits neurotransmitter release in axon terminals in the brain, except in medial habenula (MHb) terminals, which show robust potentiation. However, mechanisms underlying this enigmatic potentiation remain elusive. Here, we report that GBR activation on MHb terminals induces an activity-dependent transition from a facilitating, tonic to a depressing, phasic neurotransmitter release mode. This transition is accompanied by a 4.1-fold increase in readily releasable vesicle pool (RRP) size and a 3.5-fold increase of docked synaptic vesicles (SVs) at the presynaptic active zone (AZ). Strikingly, the depressing phasic release exhibits looser coupling distance than the tonic release. Furthermore, the tonic and phasic release are selectively affected by deletion of synaptoporin (SPO) and Ca2+-dependent activator protein for secretion 2 (CAPS2), respectively. SPO modulates augmentation, the short-term plasticity associated with tonic release, and CAPS2 retains the increased RRP for initial responses in phasic response trains. The cytosolic protein CAPS2 showed a SV-associated distribution similar to the vesicular transmembrane protein SPO, and they were colocalized in the same terminals. We developed the "Flash and Freeze-fracture" method, and revealed the release of SPO-associated vesicles in both tonic and phasic modes and activity-dependent recruitment of CAPS2 to the AZ during phasic release, which lasted several minutes. Overall, these results indicate that GBR activation translocates CAPS2 to the AZ along with the fusion of CAPS2-associated SVs, contributing to persistency of the RRP increase. Thus, we identified structural and molecular mechanisms underlying tonic and phasic neurotransmitter release and their transition by GBR activation in MHb terminals.
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Affiliation(s)
| | - Pradeep Bhandari
- Institute of Science and Technology Austria, Klosterneuburg3400, Austria
| | - Cihan Önal
- Institute of Science and Technology Austria, Klosterneuburg3400, Austria
| | | | - Elodie Le Monnier
- Institute of Science and Technology Austria, Klosterneuburg3400, Austria
| | - Utsa Roy
- Institute of Science and Technology Austria, Klosterneuburg3400, Austria
| | - Yukihiro Nakamura
- Department of Pharmacology, Jikei University School of Medicine, Nishishinbashi, Minato-ku, Tokyo105-8461, Japan
| | - Tetsushi Sadakata
- Advanced Scientific Research Leaders Development Unit, Gunma University Graduate School of Medicine, Maebashi, Gunma371-8511, Japan
| | - Makoto Sanbo
- Section of Mammalian Transgenesis, National Institute for Physiological Sciences, Okazaki444-8585, Japan
| | - Masumi Hirabayashi
- Section of Mammalian Transgenesis, National Institute for Physiological Sciences, Okazaki444-8585, Japan
| | - JeongSeop Rhee
- Department of Molecular Neurobiology, Max Planck Institute for Multidisciplinary Sciences, Göttingen37077, Germany
| | - Nils Brose
- Department of Molecular Neurobiology, Max Planck Institute for Multidisciplinary Sciences, Göttingen37077, Germany
| | - Peter Jonas
- Institute of Science and Technology Austria, Klosterneuburg3400, Austria
| | - Ryuichi Shigemoto
- Institute of Science and Technology Austria, Klosterneuburg3400, Austria
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3
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Gotti C, Clementi F, Zoli M. Auxiliary protein and chaperone regulation of neuronal nicotinic receptor subtype expression and function. Pharmacol Res 2024; 200:107067. [PMID: 38218358 DOI: 10.1016/j.phrs.2024.107067] [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: 12/16/2023] [Revised: 01/06/2024] [Accepted: 01/08/2024] [Indexed: 01/15/2024]
Abstract
Neuronal nicotinic acetylcholine receptors (nAChRs) are a family of pentameric, ligand-gated ion channels that are located on the surface of neurons and non-neuronal cells and have multiple physiological and pathophysiological functions. In order to reach the cell surface, many nAChR subtypes require the help of chaperone and/or auxiliary/accessory proteins for their assembly, trafficking, pharmacological modulation, and normal functioning in vivo. The use of powerful genome-wide cDNA screening has led to the identification and characterisation of the molecules and mechanisms that participate in the assembly and trafficking of receptor subtypes, including chaperone and auxiliary or accessory proteins. The aim of this review is to describe the latest findings concerning nAChR chaperones and auxiliary proteins and pharmacological chaperones, and how some of them control receptor biogenesis or regulate channel activation and pharmacology. Some auxiliary proteins are subtype selective, some regulate various subtypes, and some not only modulate nAChRs but also target other receptors and signalling pathways. We also discuss how changes in auxiliary proteins may be involved in nAChR dysfunctions.
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Affiliation(s)
- Cecilia Gotti
- CNR, Institute of Neuroscience, Milan, Italy; NeuroMi Milan Center for Neuroscience, University of Milano-Bicocca, Italy.
| | - Francesco Clementi
- CNR, Institute of Neuroscience, Milan, Italy; Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, Milan, Italy
| | - Michele Zoli
- Department of Biomedical, Metabolic and Neural Sciences, Center for Neuroscience and Neurotechnology (CfNN), University of Modena and Reggio Emilia, Modena, Italy
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4
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Muenstermann C, Clemens KJ. Epigenetic mechanisms of nicotine dependence. Neurosci Biobehav Rev 2024; 156:105505. [PMID: 38070842 DOI: 10.1016/j.neubiorev.2023.105505] [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: 08/31/2023] [Revised: 11/09/2023] [Accepted: 12/04/2023] [Indexed: 12/18/2023]
Abstract
Smoking continues to be a leading cause of preventable disease and death worldwide. Nicotine dependence generates a lifelong propensity towards cravings and relapse, presenting an ongoing challenge for the development of treatments. Accumulating evidence supports a role for epigenetics in the development and maintenance of addiction to many drugs of abuse, however, the involvement of epigenetics in nicotine dependence is less clear. Here we review evidence that nicotine interacts with epigenetic mechanisms to enable the maintenance of nicotine-seeking across time. Research across species suggests that nicotine increases permissive histone acetylation, decreases repressive histone methylation, and modulates levels of DNA methylation and noncoding RNA expression throughout the brain. These changes are linked to the promoter regions of genes critical for learning and memory, reward processing and addiction. Pharmacological manipulation of enzymes that catalyze core epigenetic modifications regulate nicotine reward and associative learning, demonstrating a functional role of epigenetic modifications in nicotine dependence. These findings are consistent with nicotine promoting an overall permissive chromatin state at genes important for learning, memory and reward. By exploring these links through next-generation sequencing technologies, epigenetics provides a promising avenue for future interventions to treat nicotine dependence.
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Affiliation(s)
| | - Kelly J Clemens
- School of Psychology, University of New South Wales, Sydney, Australia.
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5
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Klenowski PM, Zhao-Shea R, Freels TG, Molas S, Zinter M, M’Angale P, Xiao C, Martinez-Núñez L, Thomson T, Tapper AR. A neuronal coping mechanism linking stress-induced anxiety to motivation for reward. SCIENCE ADVANCES 2023; 9:eadh9620. [PMID: 38055830 PMCID: PMC10699782 DOI: 10.1126/sciadv.adh9620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 11/07/2023] [Indexed: 12/08/2023]
Abstract
Stress coping involves innate and active motivational behaviors that reduce anxiety under stressful situations. However, the neuronal bases directly linking stress, anxiety, and motivation are largely unknown. Here, we show that acute stressors activate mouse GABAergic neurons in the interpeduncular nucleus (IPN). Stress-coping behavior including self-grooming and reward behavior including sucrose consumption inherently reduced IPN GABAergic neuron activity. Optogenetic silencing of IPN GABAergic neuron activation during acute stress episodes mimicked coping strategies and alleviated anxiety-like behavior. In a mouse model of stress-enhanced motivation for sucrose seeking, photoinhibition of IPN GABAergic neurons reduced stress-induced motivation for sucrose, whereas photoactivation of IPN GABAergic neurons or excitatory inputs from medial habenula potentiated sucrose seeking. Single-cell sequencing, fiber photometry, and optogenetic experiments revealed that stress-activated IPN GABAergic neurons that drive motivated sucrose seeking express somatostatin. Together, these data suggest that stress induces innate behaviors and motivates reward seeking to oppose IPN neuronal activation as an anxiolytic stress-coping mechanism.
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Affiliation(s)
- Paul M. Klenowski
- Brudnick Neuropsychiatric Research Institute, Department of Neurobiology, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
- Department of Neurobiology, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Rubing Zhao-Shea
- Brudnick Neuropsychiatric Research Institute, Department of Neurobiology, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
- Department of Neurobiology, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Timothy G. Freels
- Brudnick Neuropsychiatric Research Institute, Department of Neurobiology, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
- Department of Neurobiology, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Susanna Molas
- Brudnick Neuropsychiatric Research Institute, Department of Neurobiology, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
- Department of Neurobiology, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Max Zinter
- Brudnick Neuropsychiatric Research Institute, Department of Neurobiology, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
- Department of Neurobiology, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Peter M’Angale
- Department of Neurobiology, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Cong Xiao
- Department of Neurobiology, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Leonora Martinez-Núñez
- Department of Biochemistry and Molecular Biotechnology, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Travis Thomson
- Department of Neurobiology, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Andrew R. Tapper
- Brudnick Neuropsychiatric Research Institute, Department of Neurobiology, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
- Department of Neurobiology, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
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6
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Chung L, Jing M, Li Y, Tapper AR. Feed-forward Activation of Habenula Cholinergic Neurons by Local Acetylcholine. Neuroscience 2023; 529:172-182. [PMID: 37572877 PMCID: PMC10840387 DOI: 10.1016/j.neuroscience.2023.07.030] [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: 01/31/2023] [Revised: 07/10/2023] [Accepted: 07/27/2023] [Indexed: 08/14/2023]
Abstract
While the functional and behavioral role of the medial habenula (MHb) is still emerging, recent data indicate an involvement of this nuclei in regulating mood, aversion, and addiction. Unique to the MHb is a large cluster of cholinergic neurons that project to the interpeduncular nucleus and densely express acetylcholine receptors (AChRs) suggesting that the activity of these cholinergic neurons may be regulated by ACh itself. Whether endogenous ACh from within the habenula regulates cholinergic neuron activity has not been demonstrated. Supporting a role for ACh in modulating MHb activity, acetylcholinesterase inhibitors increased the firing rate of MHb cholinergic neurons in mouse habenula slices, an effect blocked by AChR antagonists and mediated by ACh which was detected via expressing fluorescent ACh sensors in MHb in vivo. To test if cholinergic afferents innervate MHb cholinergic neurons, we used anterograde and retrograde viral tracing to identify cholinergic inputs. Surprisingly, tracing experiments failed to detect cholinergic inputs into the MHb, including from the septum, suggesting that MHb cholinergic neurons may release ACh within the MHb to drive cholinergic activity. To test this hypothesis, we expressed channelrhodopsin in a portion of MHb cholinergic neurons while recording from non-opsin-expressing neurons. Light pulses progressively increased activity of MHb cholinergic neurons indicating feed-forward activation driven by MHb ACh release. These data indicate MHb cholinergic neurons may utilize a unique feed-forward mechanism to synchronize and increase activity by releasing local ACh.
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Affiliation(s)
- Leeyup Chung
- Brudnick Neuropsychiatric Research Institute, Dept. of Neurobiology, University of Massachusetts Medical School, Worcester, MA 01605, USA
| | - Miao Jing
- State Key Laboratory of Membrane Biology, Peking University School of Life Sciences, PKU-IDG/McGovern Institute for Brain Research, 100871 Beijing, China; Chinese Institute for Brain Research, 102206 Beijing, China
| | - Yulong Li
- State Key Laboratory of Membrane Biology, Peking University School of Life Sciences, PKU-IDG/McGovern Institute for Brain Research, 100871 Beijing, China; Chinese Institute for Brain Research, 102206 Beijing, China
| | - Andrew R Tapper
- Brudnick Neuropsychiatric Research Institute, Dept. of Neurobiology, University of Massachusetts Medical School, Worcester, MA 01605, USA.
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7
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Tian ZR, Sharma A, Muresanu DF, Sharma S, Feng L, Zhang Z, Li C, Buzoianu AD, Lafuente JV, Nozari A, Sjöqvisst PO, Wiklund L, Sharma HS. Nicotine neurotoxicity exacerbation following engineered Ag and Cu (50-60 nm) nanoparticles intoxication. Neuroprotection with nanowired delivery of antioxidant compound H-290/51 together with serotonin 5-HT3 receptor antagonist ondansetron. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2023; 172:189-233. [PMID: 37833012 DOI: 10.1016/bs.irn.2023.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2023]
Abstract
Nicotine abuse is frequent worldwide leading to about 8 millions people die every year due to tobacco related diseases. Military personnel often use nicotine smoking that is about 12.8% higher than civilian populations. Nicotine smoking triggers oxidative stress and are linked to several neurodegenerative diseases such as Alzheimer's disease. Nicotine neurotoxicity induces significant depression and oxidative stress in the brain leading to neurovascular damages and brain pathology. Thus, details of nicotine neurotoxicity and factors influencing them require additional investigations. In this review, effects of engineered nanoparticles from metals Ag and Cu (50-60 nm) on nicotine neurotoxicity are discussed with regard to nicotine smoking. Military personnel often work in the environment where chances of nanoparticles exposure are quite common. In our earlier studies, we have shown that nanoparticles alone induces breakdown of the blood-brain barrier (BBB) and exacerbates brain pathology in animal models. In present investigation, nicotine exposure in with Ag or Cu nanoparticles intoxicated group exacerbated BBB breakdown, induce oxidative stress and aggravate brain pathology. Treatment with nanowired H-290/51 a potent chain-breaking antioxidant together with nanowired ondansetron, a potent 5-HT3 receptor antagonist significantly reduced oxidative stress, BBB breakdown and brain pathology in nicotine exposure associated with Ag or Cu nanoparticles intoxication. The functional significance of this findings and possible mechanisms of nicotine neurotoxicity are discussed based on current literature.
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Affiliation(s)
- Z Ryan Tian
- Dept. Chemistry & Biochemistry, University of Arkansas, Fayetteville, AR, United States
| | - Aruna Sharma
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Dept. of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden.
| | - Dafin F Muresanu
- Dept. Clinical Neurosciences, University of Medicine & Pharmacy, Cluj-Napoca, Romania; ''RoNeuro'' Institute for Neurological Research and Diagnostic, Mircea Eliade Street, Cluj-Napoca, Romania
| | - Suraj Sharma
- Blekinge Institute of Technology, BTH, Karlskrona, Sweden
| | - Lianyuan Feng
- Blekinge Institute of Technology, BTH, Karlskrona, Sweden
| | - Zhiqiang Zhang
- Department of Neurology, Bethune International Peace Hospital, Zhongshan Road (West), Shijiazhuang, Hebei Province, P.R. China
| | - Cong Li
- Department of Neurology, Bethune International Peace Hospital, Zhongshan Road (West), Shijiazhuang, Hebei Province, P.R. China
| | - Anca D Buzoianu
- The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Dade road No.111, Yuexiu District, Guangzhou, P.R. China; Department of Neurosurgery, Chinese Medicine Hospital of Guangdong Province, Guangzhou University of Chinese Medicine, Dade road No.111, Yuexiu District, Guangzhou, P.R. China
| | - José Vicente Lafuente
- Department of Clinical Pharmacology and Toxicology, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Ala Nozari
- Department of Anesthesiology, Boston University, Albany str, Boston, MA, USA
| | - Per-Ove Sjöqvisst
- Division of Cardiology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Lars Wiklund
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Dept. of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden
| | - Hari Shanker Sharma
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Dept. of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden; LaNCE, Dept. Neuroscience, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain.
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8
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Carrette LLG, Kimbrough A, Davoudian PA, Kwan AC, Collazo A, George O. Hyperconnectivity of Two Separate Long-Range Cholinergic Systems Contributes to the Reorganization of the Brain Functional Connectivity during Nicotine Withdrawal in Male Mice. eNeuro 2023; 10:ENEURO.0019-23.2023. [PMID: 37295945 PMCID: PMC10306126 DOI: 10.1523/eneuro.0019-23.2023] [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: 12/19/2022] [Revised: 04/13/2023] [Accepted: 04/25/2023] [Indexed: 06/12/2023] Open
Abstract
Chronic nicotine results in dependence with withdrawal symptoms on discontinuation of use, through desensitization of nicotinic acetylcholine receptors and altered cholinergic neurotransmission. Nicotine withdrawal is associated with increased whole-brain functional connectivity and decreased network modularity; however, the role of cholinergic neurons in those changes is unknown. To identify the contribution of nicotinic receptors and cholinergic regions to changes in the functional network, we analyzed the contribution of the main cholinergic regions to brain-wide activation of the immediate early-gene Fos during withdrawal in male mice and correlated these changes with the expression of nicotinic receptor mRNA throughout the brain. We show that the main functional connectivity modules included the main long-range cholinergic regions, which were highly synchronized with the rest of the brain. However, despite this hyperconnectivity, they were organized into two anticorrelated networks that were separated into basal forebrain-projecting and brainstem-thalamic-projecting cholinergic regions, validating a long-standing hypothesis of the organization of the brain cholinergic systems. Moreover, baseline (without nicotine) expression of Chrna2, Chrna3, Chrna10, and Chrnd mRNA of each brain region correlated with withdrawal-induced changes in Fos expression. Finally, by mining the Allen Brain mRNA expression database, we were able to identify 1755 gene candidates and three pathways (Sox2-Oct4-Nanog, JAK-STAT, and MeCP2-GABA) that may contribute to nicotine withdrawal-induced Fos expression. These results identify the dual contribution of the basal forebrain and brainstem-thalamic cholinergic systems to whole-brain functional connectivity during withdrawal; and identify nicotinic receptors and novel cellular pathways that may be critical for the transition to nicotine dependence.
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Affiliation(s)
| | - Adam Kimbrough
- Department of Psychiatry, UC San Diego, California 92093
| | - Pasha A Davoudian
- Medical Scientist Training Program, Yale University School of Medicine, New Haven, Connecticut 06511
- Interdepartmental Neuroscience Program, Yale University School of Medicine, New Haven, Connecticut 06511
| | - Alex C Kwan
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York 14853
| | - Andres Collazo
- Beckman Institute, California Institute of Technology, Pasadena, California 91125
| | - Olivier George
- Department of Psychiatry, UC San Diego, California 92093
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9
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Yang C, Gong Z, Zhang X, Miao S, Li B, Xie W, Wang T, Han X, Wang L, Dong Z, Yu S. Neuropeptide Y in the medial habenula alleviates migraine-like behaviors through the Y1 receptor. J Headache Pain 2023; 24:61. [PMID: 37231359 DOI: 10.1186/s10194-023-01596-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 05/15/2023] [Indexed: 05/27/2023] Open
Abstract
BACKGROUND Migraine is a highly disabling health burden with multiple symptoms; however, it remains undertreated because of an inadequate understanding of its neural mechanisms. Neuropeptide Y (NPY) has been demonstrated to be involved in the modulation of pain and emotion, and may play a role in migraine pathophysiology. Changes in NPY levels have been found in patients with migraine, but whether and how these changes contribute to migraine is unknown. Therefore, the purpose of this study was to investigate the role of NPY in migraine-like phenotypes. METHODS Here, we used intraperitoneal injection of glyceryl trinitrate (GTN, 10 mg/kg) as a migraine mouse model, which was verified by light-aversive test, von Frey test, and elevated plus maze test. We then performed whole-brain imaging with NPY-GFP mice to explore the critical regions where NPY was changed by GTN treatment. Next, we microinjected NPY into the medial habenula (MHb), and further infused Y1 or Y2 receptor agonists into the MHb, respectively, to detect the effects of NPY in GTN-induced migraine-like behaviors. RESULTS GTN effectively triggered allodynia, photophobia, and anxiety-like behaviors in mice. After that, we found a decreased level of GFP+ cells in the MHb of GTN-treated mice. Microinjection of NPY attenuated GTN-induced allodynia and anxiety without affecting photophobia. Furthermore, we found that activation of Y1-but not Y2-receptors attenuated GTN-induced allodynia and anxiety. CONCLUSIONS Taken together, our data support that the NPY signaling in the MHb produces analgesic and anxiolytic effects through the Y1 receptor. These findings may provide new insights into novel therapeutic targets for the treatment of migraine.
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Affiliation(s)
- Chunxiao Yang
- School of Medicine, Nankai University, Tianjin, 300071, China
- Department of Neurology, the First Medical Center, Chinese PLA General Hospital, Fuxing Road 28, Haidian District, Beijing, 100853, China
| | - Zihua Gong
- Department of Neurology, the First Medical Center, Chinese PLA General Hospital, Fuxing Road 28, Haidian District, Beijing, 100853, China
- Medical School of Chinese PLA, Beijing, 100853, China
- Department of Medical Oncology, 980th Hospital of PLA Joint Logistical Support Force (Bethune International Peace Hospital), Shijiazhuang, Hebei, 050082, China
| | - Xiaochen Zhang
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, 300072, China
| | - Shuai Miao
- Department of Neurology, the First Medical Center, Chinese PLA General Hospital, Fuxing Road 28, Haidian District, Beijing, 100853, China
- Medical School of Chinese PLA, Beijing, 100853, China
| | - Bozhi Li
- Department of Neurology, the First Medical Center, Chinese PLA General Hospital, Fuxing Road 28, Haidian District, Beijing, 100853, China
| | - Wei Xie
- Department of Neurology, the First Medical Center, Chinese PLA General Hospital, Fuxing Road 28, Haidian District, Beijing, 100853, China
- Medical School of Chinese PLA, Beijing, 100853, China
| | - Tao Wang
- Department of Neurology, the First Medical Center, Chinese PLA General Hospital, Fuxing Road 28, Haidian District, Beijing, 100853, China
- Medical School of Chinese PLA, Beijing, 100853, China
| | - Xun Han
- Department of Neurology, the First Medical Center, Chinese PLA General Hospital, Fuxing Road 28, Haidian District, Beijing, 100853, China
| | - Liang Wang
- Institute of Neuroscience, Zhejiang University School of Medicine, Hangzhou, 310058, Zhejiang, China
| | - Zhao Dong
- School of Medicine, Nankai University, Tianjin, 300071, China
- Department of Neurology, the First Medical Center, Chinese PLA General Hospital, Fuxing Road 28, Haidian District, Beijing, 100853, China
- Medical School of Chinese PLA, Beijing, 100853, China
| | - Shengyuan Yu
- School of Medicine, Nankai University, Tianjin, 300071, China.
- Department of Neurology, the First Medical Center, Chinese PLA General Hospital, Fuxing Road 28, Haidian District, Beijing, 100853, China.
- Medical School of Chinese PLA, Beijing, 100853, China.
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10
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Ables JL, Park K, Ibañez-Tallon I. Understanding the habenula: A major node in circuits regulating emotion and motivation. Pharmacol Res 2023; 190:106734. [PMID: 36933754 PMCID: PMC11081310 DOI: 10.1016/j.phrs.2023.106734] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 03/04/2023] [Accepted: 03/14/2023] [Indexed: 03/18/2023]
Abstract
Over the last decade, the understanding of the habenula has rapidly advanced from being an understudied brain area with the Latin name 'habena" meaning "little rein", to being considered a "major rein" in the control of key monoaminergic brain centers. This ancient brain structure is a strategic node in the information flow from fronto-limbic brain areas to brainstem nuclei. As such, it plays a crucial role in regulating emotional, motivational, and cognitive behaviors and has been implicated in several neuropsychiatric disorders, including depression and addiction. This review will summarize recent findings on the medial (MHb) and lateral (LHb) habenula, their topographical projections, cell types, and functions. Additionally, we will discuss contemporary efforts that have uncovered novel molecular pathways and synaptic mechanisms with a focus on MHb-Interpeduncular nucleus (IPN) synapses. Finally, we will explore the potential interplay between the habenula's cholinergic and non-cholinergic components in coordinating related emotional and motivational behaviors, raising the possibility that these two pathways work together to provide balanced roles in reward prediction and aversion, rather than functioning independently.
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Affiliation(s)
- Jessica L Ables
- Psychiatry Department, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Kwanghoon Park
- The Laboratory of Molecular Biology, The Rockefeller University, New York, NY, USA
| | - Inés Ibañez-Tallon
- The Laboratory of Molecular Biology, The Rockefeller University, New York, NY, USA.
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11
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Carrette LL, Kimbrough A, Davoudian PA, Kwan AC, Collazo A, George O. Hyperconnectivity of two separate long-range cholinergic systems contributes to the reorganization of the brain functional connectivity during nicotine withdrawal in male mice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.29.534836. [PMID: 37034602 PMCID: PMC10081261 DOI: 10.1101/2023.03.29.534836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
Chronic nicotine results in dependence with withdrawal symptoms upon discontinuation of use, through desensitization of nicotinic acetylcholine receptors and altered cholinergic neurotransmission. Nicotine withdrawal is associated with increased whole-brain functional connectivity and decreased network modularity, however, the role of cholinergic neurons in those changes is unknown. To identify the contribution of nicotinic receptors and cholinergic regions to changes in the functional network, we analyzed the contribution of the main cholinergic regions to brain-wide activation of the immediate early-gene FOS during withdrawal in male mice and correlated these changes with the expression of nicotinic receptor mRNA throughout the brain. We show that the main functional connectivity modules included the main long-range cholinergic regions, which were highly synchronized with the rest of the brain. However, despite this hyperconnectivity they were organized into two anticorrelated networks that were separated into basal forebrain projecting and brainstem-thalamic projecting cholinergic regions, validating a long-standing hypothesis of the organization of the brain cholinergic systems. Moreover, baseline (without nicotine) expression of Chrna2 , Chrna3 , Chrna10 , and Chrnd mRNA of each brain region correlated with withdrawal-induced changes in FOS expression. Finally, by mining the Allen Brain mRNA expression database, we were able to identify 1755 gene candidates and three pathways (Sox2-Oct4-Nanog, JAK-STAT, and MeCP2-GABA) that may contribute to nicotine withdrawal-induced FOS expression. These results identify the dual contribution of the basal forebrain and brainstem-thalamic cholinergic systems to whole-brain functional connectivity during withdrawal; and identify nicotinic receptors and novel cellular pathways that may be critical for the transition to nicotine dependence. Significance Statement Discontinuation of nicotine use in dependent users is associated with increased whole-brain activation and functional connectivity and leads to withdrawal symptoms. Here we investigated the contribution of the nicotinic cholinergic receptors and main cholinergic projecting brain areas in the whole-brain changes associated with withdrawal. This not only allowed us to visualize and confirm the previously described duality of the cholinergic brain system using this novel methodology, but also identify nicotinic receptors together with 1751 other genes that contribute, and could thus be targets for treatments against, nicotine withdrawal and dependence.
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Affiliation(s)
| | - Adam Kimbrough
- Department of Psychiatry, UC San Diego, La Jolla, CA, 92032, United States
| | - Pasha A. Davoudian
- Medical Scientist Training Program, Yale University School of Medicine, New Haven, CT, 06511, United States
- Interdepartmental Neuroscience Program, Yale University School of Medicine, New Haven, CT, 06511, United States
| | - Alex C. Kwan
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, 14853, United States
| | - Andres Collazo
- Beckman Institute, CalTech, Pasadena, CA, 91125, United States
| | - Olivier George
- Department of Psychiatry, UC San Diego, La Jolla, CA, 92032, United States
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12
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Specific Inhibition of Interpeduncular Nucleus GABAergic Neurons Alleviates Anxiety-Like Behaviors in Male Mice after Prolonged Abstinence from Methamphetamine. J Neurosci 2023; 43:803-811. [PMID: 36564185 PMCID: PMC9899084 DOI: 10.1523/jneurosci.1767-22.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 12/12/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022] Open
Abstract
Anxiety is one of the most common withdrawal symptoms of methamphetamine (METH) abuse, which further drives relapse to drugs. Interpeduncular nucleus (IPN) has been implicated in anxiety-like behaviors and addiction, yet its role in METH-abstinence-induced anxiety remains unknown. Here, we found that prolonged abstinence from METH enhanced anxiety-like behaviors in male mice, accompanied by more excited IPN GABAergic neurons, as indicated by the increased c-fos expression and the enhanced neuronal excitability by electrophysiological recording in the GABAergic neurons. Using the designer receptors exclusively activated by designer drugs method, specific inhibition of IPN GABAergic neurons rescued the aberrant neuronal excitation of IPN GABAergic neurons and efficiently reduced anxiety-like behaviors, whereas it did not induce depression-like behaviors in male mice after prolonged abstinence from METH. These findings reveal that IPN GABAergic neurons should be a promising brain target to alleviate late withdrawal symptoms from METH with few side effects.SIGNIFICANCE STATEMENT Prolonged abstinence from METH triggers IPN GABAergic neurons and ultimately increases anxiety in male mice. Suppressing IPN GABAergic neurons rescues METH abstinence-induced aberrant neuronal excitation of IPN GABAergic neurons and efficiently reduces anxiety in mice.
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13
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Molas S, Zhao-Shea R, Freels TG, Tapper AR. Viral Tracing Confirms Paranigral Ventral Tegmental Area Dopaminergic Inputs to the Interpeduncular Nucleus Where Dopamine Release Encodes Motivated Exploration. eNeuro 2023; 10:ENEURO.0282-22.2022. [PMID: 36599671 PMCID: PMC9840383 DOI: 10.1523/eneuro.0282-22.2022] [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: 07/12/2022] [Revised: 12/07/2022] [Accepted: 12/20/2022] [Indexed: 01/05/2023] Open
Abstract
Midbrain dopaminergic (DAergic) neurons of the ventral tegmental area (VTA) are engaged by rewarding stimuli and encode reward prediction error to update goal-directed learning. However, recent data indicate that VTA DAergic neurons are functionally heterogeneous with emerging roles in aversive signaling, salience, and novelty, based in part on anatomic location and projection, highlighting a need to functionally characterize the repertoire of VTA DAergic efferents in motivated behavior. Previous work identifying a mesointerpeduncular circuit consisting of VTA DAergic neurons projecting to the interpeduncular nucleus (IPN), a midbrain area implicated in aversion, anxiety-like behavior, and familiarity, has recently come into question. To verify the existence of this circuit, we combined presynaptic targeted and retrograde viral tracing in the dopamine transporter-Cre mouse line. Consistent with previous reports, synaptic tracing revealed that axon terminals from the VTA innervate the caudal IPN; whereas, retrograde tracing revealed DAergic VTA neurons, predominantly in the paranigral region, project to the nucleus accumbens shell, as well as the IPN. To test whether functional DAergic neurotransmission exists in the IPN, we expressed the genetically encoded DA sensor, dLight 1.2, in the IPN of C57BL/6J mice and measured IPN DA signals in vivo during social and anxiety-like behavior using fiber photometry. We observed an increase in IPN DA signal during social investigation of a novel but not familiar conspecific and during exploration of the anxiogenic open arms of the elevated plus maze. Together, these data confirm VTA DAergic neuron projections to the IPN and implicate this circuit in encoding motivated exploration.
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Affiliation(s)
- Susanna Molas
- Department of Neurobiology, Brudnick Neuropsychiatric Research Institute, University of Massachusetts Chan Medical School, Worcester, Massachusetts 01605
| | - Rubing Zhao-Shea
- Department of Neurobiology, Brudnick Neuropsychiatric Research Institute, University of Massachusetts Chan Medical School, Worcester, Massachusetts 01605
| | - Timothy G Freels
- Department of Neurobiology, Brudnick Neuropsychiatric Research Institute, University of Massachusetts Chan Medical School, Worcester, Massachusetts 01605
| | - Andrew R Tapper
- Department of Neurobiology, Brudnick Neuropsychiatric Research Institute, University of Massachusetts Chan Medical School, Worcester, Massachusetts 01605
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14
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Zhang H, Liu S, Qin Q, Xu Z, Qu Y, Wang Y, Wang J, Du Z, Yuan S, Hong S, Chang Z, He W, Yan X, Lang Y, Tang R, Wang Y, Zhu L, Jiang X. Genetic and Pharmacological Inhibition of Astrocytic Mysm1 Alleviates Depressive-Like Disorders by Promoting ATP Production. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 10:e2204463. [PMID: 36414403 PMCID: PMC9811473 DOI: 10.1002/advs.202204463] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 10/16/2022] [Indexed: 05/03/2023]
Abstract
Major depressive disorder (MDD) is a leading cause of disability worldwide. A comprehensive understanding of the molecular mechanisms of this disorder is critical for the therapy of MDD. In this study, it is observed that deubiquitinase Mysm1 is induced in the brain tissues from patients with major depression and from mice with depressive behaviors. The genetic silencing of astrocytic Mysm1 induced an antidepressant-like effect and alleviated the osteoporosis of depressive mice. Furthermore, it is found that Mysm1 knockdown led to increased ATP production and the activation of p53 and AMP-activated protein kinase (AMPK). Pifithrin α (PFT α) and Compound C, antagonists of p53 and AMPK, respectively, repressed ATP production and reversed the antidepressant effect of Mysm1 knockdown. Moreover, the pharmacological inhibition of astrocytic Mysm1 by aspirin relieved depressive-like behaviors in mice. The study reveals, for the first time, the important function of Mysm1 in the brain, highlighting astrocytic Mysm1 as a potential risk factor for depression and as a valuable target for drug discovery to treat depression.
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Affiliation(s)
- Heyang Zhang
- Beijing Institute of Basic Medical Sciences27 Taiping Road, Haidian DistrictBeijing100850China
| | - Shuirong Liu
- Beijing Institute of Basic Medical Sciences27 Taiping Road, Haidian DistrictBeijing100850China
| | - Qiaozhen Qin
- Beijing Institute of Basic Medical Sciences27 Taiping Road, Haidian DistrictBeijing100850China
- Faculty of Environmental and Life SciencesBeijing University of TechnologyBeijing100124China
| | - Zhenhua Xu
- Beijing Institute of Basic Medical Sciences27 Taiping Road, Haidian DistrictBeijing100850China
| | - Yannv Qu
- Department of GeriatricsPeking University Shenzhen HospitalShenzhenGuangzhou518036China
| | - Yadi Wang
- Beijing Institute of Basic Medical Sciences27 Taiping Road, Haidian DistrictBeijing100850China
| | - Jianing Wang
- Beijing Institute of Basic Medical Sciences27 Taiping Road, Haidian DistrictBeijing100850China
| | - Zhangzhen Du
- Beijing Institute of Basic Medical Sciences27 Taiping Road, Haidian DistrictBeijing100850China
| | - Shanshan Yuan
- Beijing Institute of Basic Medical Sciences27 Taiping Road, Haidian DistrictBeijing100850China
| | - Shunming Hong
- Beijing Institute of Basic Medical Sciences27 Taiping Road, Haidian DistrictBeijing100850China
| | - Zhilin Chang
- China National Clinical Research Center for Neurological DiseasesJing‐Jin Center for NeuroinflammationBeijing Tiantan HospitalCapital Medical UniversityBeijing100050China
| | - Wenyan He
- China National Clinical Research Center for Neurological DiseasesJing‐Jin Center for NeuroinflammationBeijing Tiantan HospitalCapital Medical UniversityBeijing100050China
| | - Xinlong Yan
- Faculty of Environmental and Life SciencesBeijing University of TechnologyBeijing100124China
| | - Yiran Lang
- Beijing Innovation Center for Intelligent Robots and SystemsBeijing Institute of TechnologyBeijing100081China
| | - Rongyu Tang
- Beijing Innovation Center for Intelligent Robots and SystemsBeijing Institute of TechnologyBeijing100081China
| | - Yan Wang
- Beijing Institute of Basic Medical Sciences27 Taiping Road, Haidian DistrictBeijing100850China
- Anhui Medical UniversityHefeiAnhui230032China
| | - Lingling Zhu
- Beijing Institute of Basic Medical Sciences27 Taiping Road, Haidian DistrictBeijing100850China
- Anhui Medical UniversityHefeiAnhui230032China
- Co‐innovation Center of NeuroregenerationNantong UniversityNantong226019China
| | - Xiaoxia Jiang
- Beijing Institute of Basic Medical Sciences27 Taiping Road, Haidian DistrictBeijing100850China
- Anhui Medical UniversityHefeiAnhui230032China
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15
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Olszewski NA, Tetteh-Quarshie S, Henderson BJ. Understanding the Impact of Flavors on Vaping and Nicotine Addiction-Related Behaviors. Curr Behav Neurosci Rep 2022. [DOI: 10.1007/s40473-022-00253-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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16
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Jia S, Guo X, Chen Z, Li S, Liu XA. The roles of the circadian hormone melatonin in drug addiction. Pharmacol Res 2022; 183:106371. [PMID: 35907435 DOI: 10.1016/j.phrs.2022.106371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/19/2022] [Accepted: 07/26/2022] [Indexed: 10/16/2022]
Abstract
Given the devastating social and health consequences of drug addiction and the limitations of current treatments, a new strategy is needed. Circadian system disruptions are frequently associated with drug addiction. Correcting abnormal circadian rhythms and improving sleep quality may thus be beneficial in the treatment of patients with drug addiction. Melatonin, an essential circadian hormone that modulates the biological clock, has anti-inflammatory, analgesic, anti-depressive, and neuroprotective effects via gut microbiota regulation and epigenetic modifications. It has attracted scientists' attention as a potential solution to drug abuse. This review summarized scientific evidence on the roles of melatonin in substance use disorders at the cellular, circuitry, and system levels, and discussed its potential applications as an intervention strategy for drug addiction.
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Affiliation(s)
- Shuhui Jia
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China; University of Chinese Academy of Sciences, Beijing, China
| | - Xuantong Guo
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China; University of Chinese Academy of Sciences, Beijing, China
| | - Zuxin Chen
- Shenzhen Key Laboratory of Drug Addiction, Shenzhen Neher Neural Plasticity Laboratory, The Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China; University of Chinese Academy of Sciences, Beijing, China.
| | - Shupeng Li
- State Key Laboratory of Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Xin-An Liu
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China; University of Chinese Academy of Sciences, Beijing, China.
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17
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Antunes GF, Pinheiro Campos AC, de Assis DV, Gouveia FV, de Jesus Seno MD, Pagano RL, Ruiz Martinez RC. Habenula activation patterns in a preclinical model of neuropathic pain accompanied by depressive-like behaviour. PLoS One 2022; 17:e0271295. [PMID: 35819957 PMCID: PMC9275703 DOI: 10.1371/journal.pone.0271295] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 06/27/2022] [Indexed: 12/02/2022] Open
Abstract
Pain and depression are complex disorders that frequently co-occur, resulting in diminished quality of life. The habenula is an epithalamic structure considered to play a pivotal role in the neurocircuitry of both pain and depression. The habenula can be divided into two major areas, the lateral and medial habenula, that can be further subdivided, resulting in 6 main subregions. Here, we investigated habenula activation patterns in a rat model of neuropathic pain with accompanying depressive-like behaviour. Wistar rats received active surgery for the development of neuropathic pain (chronic constriction injury of the sciatic nerve; CCI), sham surgery (surgical control), or no surgery (behavioural control). All animals were evaluated for mechanical nociceptive threshold using the paw pressure test and depressive-like behaviour using the forced swimming test, followed by evaluation of the immunoreactivity to cFos—a marker of neuronal activity—in the habenula and subregions. The Open Field Test was used to evaluate locomotor activity. Animals with peripheral neuropathy (CCI) showed decreased mechanical nociceptive threshold and increased depressive-like behaviour compared to control groups. The CCI group presented decreased cFos immunoreactivity in the total habenula, total lateral habenula and lateral habenula subregions, compared to controls. No difference was found in cFos immunoreactivity in the total medial habenula, however when evaluating the subregions of the medial habenula, we observed distinct activation patterns, with increase cFos immunoreactivity in the superior subregion and decrease in the central subregion. Taken together, our data suggest an involvement of the habenula in neuropathic pain and accompanying depressive-like behaviour.
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Affiliation(s)
| | | | | | - Flavia Venetucci Gouveia
- Division of Neuroscience, Hospital Sírio-Libanês, São Paulo, Brazil
- Neuroscience and Mental Health, Hospital for Sick Children Research Institute, Toronto, Canada
- * E-mail: (RCRM); (FVG)
| | | | | | - Raquel Chacon Ruiz Martinez
- Division of Neuroscience, Hospital Sírio-Libanês, São Paulo, Brazil
- LIM/23, Institute of Psychiatry, University of Sao Paulo School of Medicine, São Paulo, Brazil
- * E-mail: (RCRM); (FVG)
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18
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Mu R, Tang S, Han X, Wang H, Yuan D, Zhao J, Long Y, Hong H. A cholinergic medial septum input to medial habenula mediates generalization formation and extinction of visual aversion. Cell Rep 2022; 39:110882. [PMID: 35649349 DOI: 10.1016/j.celrep.2022.110882] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 12/07/2021] [Accepted: 05/06/2022] [Indexed: 12/28/2022] Open
Abstract
Generalization of visual aversion is a critical function of the brain that supports survival, but the underlying neurobiological mechanisms are unclear. We establish a rapid generalization procedure for inducing visual aversion by dynamic stripe images. By using fiber photometry, apoptosis, chemogenetic and optogenetic techniques, and behavioral tests, we find that decreased cholinergic neurons' activity in the medial septum (MS) leads to generalization loss of visual aversion. Strikingly, we identify a projection from MS cholinergic neurons to the medial habenula (MHb) and find that inhibition of the MS→MHb cholinergic circuit disrupts aversion-generalization formation while its continuous activation disrupts subsequent extinction. Further studies show that MS→MHb cholinergic projections modulate the generalization of visual aversion possibly via M1 muscarinic acetylcholine receptors (mAChRs) of downstream neurons coreleasing glutamate and acetylcholine. These findings reveal that the MS→MHb cholinergic circuit is a critical node in aversion-generalization formation and extinction and potentially provides insight into the pathogenesis of affective disorders.
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Affiliation(s)
- Ronghao Mu
- Department of Pharmacology, Key Laboratory of Neuropsychiatric Diseases, China Pharmaceutical University, Nanjing 211198, China
| | - Susu Tang
- Department of Pharmacology, Key Laboratory of Neuropsychiatric Diseases, China Pharmaceutical University, Nanjing 211198, China
| | - Xiaomeng Han
- Department of Pharmacology, Key Laboratory of Neuropsychiatric Diseases, China Pharmaceutical University, Nanjing 211198, China
| | - Hao Wang
- Department of Pharmacology, Key Laboratory of Neuropsychiatric Diseases, China Pharmaceutical University, Nanjing 211198, China
| | - Danhua Yuan
- Department of Pharmacology, Key Laboratory of Neuropsychiatric Diseases, China Pharmaceutical University, Nanjing 211198, China
| | - Jiajia Zhao
- Department of Pharmacology, Key Laboratory of Neuropsychiatric Diseases, China Pharmaceutical University, Nanjing 211198, China
| | - Yan Long
- Department of Pharmacology, Key Laboratory of Neuropsychiatric Diseases, China Pharmaceutical University, Nanjing 211198, China.
| | - Hao Hong
- Department of Pharmacology, Key Laboratory of Neuropsychiatric Diseases, China Pharmaceutical University, Nanjing 211198, China.
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19
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Hong SW, Teesdale-Spittle P, Page R, Ellenbroek B, Truman P. Biologically Active Compounds Present in Tobacco Smoke: Potential Interactions Between Smoking and Mental Health. Front Neurosci 2022; 16:885489. [PMID: 35557609 PMCID: PMC9087043 DOI: 10.3389/fnins.2022.885489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 03/28/2022] [Indexed: 12/01/2022] Open
Abstract
Tobacco dependence remains one of the major preventable causes of premature morbidity and mortality worldwide. There are well over 8,000 compounds present in tobacco and tobacco smoke, but we do not know what effect, if any, many of them have on smokers. Major interest has been on nicotine, as well as on toxic and carcinogenic effects and several major and minor components of tobacco smoke responsible for the negative health effects of smoking have been elucidated. Smokers themselves report a variety of positive effects from smoking, including effects on depression, anxiety and mental acuity. Smoking has also been shown to have protective effects in Parkinson’s Disease. Are the subjective reports of a positive effect of smoking due to nicotine, of some other components of tobacco smoke, or are they a manifestation of the relief from nicotine withdrawal symptoms that smoking provides? This mini-review summarises what is currently known about the components of tobacco smoke with potential to have positive effects on smokers.
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Affiliation(s)
- Sa Weon Hong
- School of Health Sciences, Massey University, Wellington, New Zealand
| | - Paul Teesdale-Spittle
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand
| | - Rachel Page
- School of Health Sciences, Massey University, Wellington, New Zealand
| | - Bart Ellenbroek
- Department of Psychology, Victoria University of Wellington, Wellington, New Zealand
| | - Penelope Truman
- School of Health Sciences, Massey University, Wellington, New Zealand
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20
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Song JG, Kwon O, Hwang EM, Kim HW, Park JY. Conditional deletion of TMEM16A in cholinergic neurons of the medial habenula induces anhedonic-like behavior in mice. Behav Brain Res 2022; 426:113841. [DOI: 10.1016/j.bbr.2022.113841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 02/17/2022] [Accepted: 03/10/2022] [Indexed: 11/02/2022]
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21
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Abstract
Nectins are immunoglobulin-like cell adhesion molecules constituting a family with four members, nectin-1, nectin-2, nectin-3, and nectin-4. In the brain, nectin-2 as well as nectin-1 and nectin-3 are expressed whereas nectin-4 is hardly expressed. In the nervous system, physiological functions of nectin-1 and nectin-3, such as synapse formation, mossy fiber trajectory regulation, interneurite affinity, contextual fear memory formation, and stress-related mental disorders, have been revealed. Nectin-2 is ubiquitously expressed in non-neuronal tissues and various nectin-2 functions in non-nervous systems have been extensively investigated, but nectin-2 functions in the brain have not been revealed until recently. Recent findings have revealed that nectin-2 is expressed in the specific areas of the brain and plays important roles, such as homeostasis of astrocytes and neurons and the formation of synapses. Moreover, a single nucleotide polymorphism in the human NECTIN2 gene is associated with Alzheimer's disease. We here summarize recent progress in our understanding of nectin-2 functions in the brain.
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22
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Mulcahy MJ, Huard SM, Paulo JA, Wang JH, McKinney S, Marks MJ, Henderson BJ, Lester HA. Protein profiling in the habenula after chronic (-)-menthol exposure in mice. J Neurochem 2021; 158:1345-1358. [PMID: 34407206 DOI: 10.1111/jnc.15495] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 07/10/2021] [Accepted: 08/11/2021] [Indexed: 11/30/2022]
Abstract
The identification of proteins that are altered following nicotine/tobacco exposure can facilitate and positively impact the investigation of related diseases. In this report, we investigated the effects of chronic (-)-menthol exposure in 14 murine brain regions for changes in total β2 subunit protein levels and changes in epibatidine binding levels using immunoblotting and radioligand binding assays. We identified the habenula as a region of interest due to the region's marked decreases in β2 subunit and nAChR levels in response to chronic (-)-menthol alone. Thus, we further examined the habenula, a brain region associated with both the reward and withdrawal components of addiction, for additional protein level alterations using mass spectrometry. A total of 552 proteins with altered levels were identified after chronic (-)-menthol exposure. Enriched in the proteins with altered levels after (-)-menthol exposure were proteins associated with signaling, immune systems, RNA regulation, and protein transport. The continuation and expansion of the brain region-specific protein profiling in response to (-)-menthol will provide a better understanding of how this common flavorant in tobacco and e-liquid products may affect addiction and general health.
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Affiliation(s)
- Matthew J Mulcahy
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, California, USA
| | - Stephanie M Huard
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, California, USA
| | - Joao A Paulo
- Department of Cell Biology, Harvard Medical School, Boston, Massachusetts, USA
| | - Jonathan H Wang
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, California, USA
| | - Sheri McKinney
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, California, USA
| | - Michael J Marks
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, California, USA
| | - Brandon J Henderson
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia, USA
| | - Henry A Lester
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, California, USA
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23
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Nguyen C, Mondoloni S, Le Borgne T, Centeno I, Come M, Jehl J, Solié C, Reynolds LM, Durand-de Cuttoli R, Tolu S, Valverde S, Didienne S, Hannesse B, Fiancette JF, Pons S, Maskos U, Deroche-Gamonet V, Dalkara D, Hardelin JP, Mourot A, Marti F, Faure P. Nicotine inhibits the VTA-to-amygdala dopamine pathway to promote anxiety. Neuron 2021; 109:2604-2615.e9. [PMID: 34242565 DOI: 10.1016/j.neuron.2021.06.013] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 03/27/2021] [Accepted: 06/09/2021] [Indexed: 11/28/2022]
Abstract
Nicotine stimulates dopamine (DA) neurons of the ventral tegmental area (VTA) to establish and maintain reinforcement. Nicotine also induces anxiety through an as yet unknown circuitry. We found that nicotine injection drives opposite functional responses of two distinct populations of VTA DA neurons with anatomically segregated projections: it activates neurons that project to the nucleus accumbens (NAc), whereas it inhibits neurons that project to the amygdala nuclei (Amg). We further show that nicotine mediates anxiety-like behavior by acting on β2-subunit-containing nicotinic acetylcholine receptors of the VTA. Finally, using optogenetics, we bidirectionally manipulate the VTA-NAc and VTA-Amg pathways to dissociate their contributions to anxiety-like behavior. We show that inhibition of VTA-Amg DA neurons mediates anxiety-like behavior, while their activation prevents the anxiogenic effects of nicotine. These distinct subpopulations of VTA DA neurons with opposite responses to nicotine may differentially drive the anxiogenic and the reinforcing effects of nicotine.
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Affiliation(s)
- Claire Nguyen
- ESPCI, Laboratoire de plasticité du cerveau UMR8249, 10 rue Vauquelin, 75005 Paris, France; Sorbonne Université, Inserm, UMR8246 CNRS, Neuroscience Paris Seine - IBPS, 75005 Paris, France
| | - Sarah Mondoloni
- Sorbonne Université, Inserm, UMR8246 CNRS, Neuroscience Paris Seine - IBPS, 75005 Paris, France
| | - Tinaïg Le Borgne
- ESPCI, Laboratoire de plasticité du cerveau UMR8249, 10 rue Vauquelin, 75005 Paris, France; Sorbonne Université, Inserm, UMR8246 CNRS, Neuroscience Paris Seine - IBPS, 75005 Paris, France
| | - Ines Centeno
- Sorbonne Université, Inserm, UMR8246 CNRS, Neuroscience Paris Seine - IBPS, 75005 Paris, France
| | - Maxime Come
- ESPCI, Laboratoire de plasticité du cerveau UMR8249, 10 rue Vauquelin, 75005 Paris, France; Sorbonne Université, Inserm, UMR8246 CNRS, Neuroscience Paris Seine - IBPS, 75005 Paris, France
| | - Joachim Jehl
- ESPCI, Laboratoire de plasticité du cerveau UMR8249, 10 rue Vauquelin, 75005 Paris, France; Sorbonne Université, Inserm, UMR8246 CNRS, Neuroscience Paris Seine - IBPS, 75005 Paris, France
| | - Clément Solié
- ESPCI, Laboratoire de plasticité du cerveau UMR8249, 10 rue Vauquelin, 75005 Paris, France; Sorbonne Université, Inserm, UMR8246 CNRS, Neuroscience Paris Seine - IBPS, 75005 Paris, France
| | - Lauren M Reynolds
- ESPCI, Laboratoire de plasticité du cerveau UMR8249, 10 rue Vauquelin, 75005 Paris, France; Sorbonne Université, Inserm, UMR8246 CNRS, Neuroscience Paris Seine - IBPS, 75005 Paris, France
| | | | - Stefania Tolu
- Sorbonne Université, Inserm, UMR8246 CNRS, Neuroscience Paris Seine - IBPS, 75005 Paris, France
| | - Sébastien Valverde
- Sorbonne Université, Inserm, UMR8246 CNRS, Neuroscience Paris Seine - IBPS, 75005 Paris, France
| | - Steve Didienne
- ESPCI, Laboratoire de plasticité du cerveau UMR8249, 10 rue Vauquelin, 75005 Paris, France; Sorbonne Université, Inserm, UMR8246 CNRS, Neuroscience Paris Seine - IBPS, 75005 Paris, France
| | - Bernadette Hannesse
- Sorbonne Université, Inserm, UMR8246 CNRS, Neuroscience Paris Seine - IBPS, 75005 Paris, France
| | - Jean-François Fiancette
- Neurocentre Magendie, Inserm U1215, Université de Bordeaux, 146 rue Léo Saignat, 33077 Bordeaux, France
| | - Stéphanie Pons
- Institut Pasteur, Unité Neurobiologie intégrative des systèmes cholinergiques, Département de neuroscience, 75724 Paris Cedex, France
| | - Uwe Maskos
- Institut Pasteur, Unité Neurobiologie intégrative des systèmes cholinergiques, Département de neuroscience, 75724 Paris Cedex, France
| | - Véronique Deroche-Gamonet
- Neurocentre Magendie, Inserm U1215, Université de Bordeaux, 146 rue Léo Saignat, 33077 Bordeaux, France
| | - Deniz Dalkara
- Sorbonne Université, Inserm, CNRS, Institut de la Vision, Paris, France
| | - Jean-Pierre Hardelin
- ESPCI, Laboratoire de plasticité du cerveau UMR8249, 10 rue Vauquelin, 75005 Paris, France; Sorbonne Université, Inserm, UMR8246 CNRS, Neuroscience Paris Seine - IBPS, 75005 Paris, France
| | - Alexandre Mourot
- ESPCI, Laboratoire de plasticité du cerveau UMR8249, 10 rue Vauquelin, 75005 Paris, France; Sorbonne Université, Inserm, UMR8246 CNRS, Neuroscience Paris Seine - IBPS, 75005 Paris, France
| | - Fabio Marti
- ESPCI, Laboratoire de plasticité du cerveau UMR8249, 10 rue Vauquelin, 75005 Paris, France; Sorbonne Université, Inserm, UMR8246 CNRS, Neuroscience Paris Seine - IBPS, 75005 Paris, France.
| | - Philippe Faure
- ESPCI, Laboratoire de plasticité du cerveau UMR8249, 10 rue Vauquelin, 75005 Paris, France; Sorbonne Université, Inserm, UMR8246 CNRS, Neuroscience Paris Seine - IBPS, 75005 Paris, France.
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24
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Vickstrom CR, Liu X, Liu S, Hu MM, Mu L, Hu Y, Yu H, Love SL, Hillard CJ, Liu QS. Role of endocannabinoid signaling in a septohabenular pathway in the regulation of anxiety- and depressive-like behavior. Mol Psychiatry 2021; 26:3178-3191. [PMID: 33093652 PMCID: PMC8060365 DOI: 10.1038/s41380-020-00905-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 09/17/2020] [Accepted: 10/01/2020] [Indexed: 12/21/2022]
Abstract
Enhancing endocannabinoid signaling produces anxiolytic- and antidepressant-like effects, but the neural circuits involved remain poorly understood. The medial habenula (MHb) is a phylogenetically-conserved epithalamic structure that is a powerful modulator of anxiety- and depressive-like behavior. Here, we show that a robust endocannabinoid signaling system modulates synaptic transmission between the MHb and its sole identified GABA input, the medial septum and nucleus of the diagonal band (MSDB). With RNAscope in situ hybridization, we demonstrate that key enzymes that synthesize or degrade the endocannabinoids 2-arachidonylglycerol (2-AG) or anandamide are expressed in the MHb and MSDB, and that cannabinoid receptor 1 (CB1) is expressed in the MSDB. Electrophysiological recordings in MHb neurons revealed that endogenously-released 2-AG retrogradely depresses GABA input from the MSDB. This endocannabinoid-mediated depolarization-induced suppression of inhibition (DSI) was limited by monoacylglycerol lipase (MAGL) but not by fatty acid amide hydrolase. Anatomic and optogenetic circuit mapping indicated that MSDB GABA neurons monosynaptically project to cholinergic neurons of the ventral MHb. To test the behavioral significance of this MSDB-MHb endocannabinoid signaling, we induced MSDB-specific knockout of CB1 or MAGL via injection of virally-delivered Cre recombinase into the MSDB of Cnr1loxP/loxP or MgllloxP/loxP mice. Relative to control mice, MSDB-specific knockout of CB1 or MAGL bidirectionally modulated 2-AG signaling in the ventral MHb and led to opposing effects on anxiety- and depressive-like behavior. Thus, depression of synaptic GABA release in the MSDB-ventral MHb pathway may represent a potential mechanism whereby endocannabinoids exert anxiolytic and antidepressant-like effects.
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Affiliation(s)
- Casey R Vickstrom
- Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, WI, 53226, USA.
| | - Xiaojie Liu
- Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, WI, 53226, USA
| | - Shuai Liu
- Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, WI, 53226, USA
| | - Meng-Ming Hu
- Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, WI, 53226, USA
| | - Lianwei Mu
- Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, WI, 53226, USA
| | - Ying Hu
- Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, WI, 53226, USA
| | - Hao Yu
- Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, WI, 53226, USA
| | - Santidra L Love
- Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, WI, 53226, USA
| | - Cecilia J Hillard
- Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, WI, 53226, USA
| | - Qing-Song Liu
- Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, WI, 53226, USA.
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25
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D'Angelo C, Costantini E, Salvador N, Marchioni M, Di Nicola M, Greig NH, Reale M. nAChRs gene expression and neuroinflammation in APPswe/PS1dE9 transgenic mouse. Sci Rep 2021; 11:9711. [PMID: 33958667 PMCID: PMC8102527 DOI: 10.1038/s41598-021-89139-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 04/21/2021] [Indexed: 11/16/2022] Open
Abstract
An evaluation of the APPswe/PS1dE9 transgenic AD mouse, presenting with the toxic Aβ1-42 deposition found in human AD, allowed us to characterize time-dependent changes in inflammatory and cholinergic markers present in AD. Astrogliosis was observed in cortex and hippocampus, with cellular loss occurring in the same areas in which Aβ plaques were present. In this setting, we found early significantly elevated levels of IL-1β and TNFα gene expression; with the hippocampus showing the highest IL-1β expression. To investigate the cholinergic anti-inflammatory pathway, the expression of nicotinic receptors (nAChRs) and cholinesterase enzymes also was evaluated. The anti-inflammatory nAChRα7, α4, and β2 were particularly increased at 6 months of age in the hippocampus, potentially as a strategy to counteract Aβ deposition and the ensuing inflammatory state. A time-dependent subunit switch to the α3β4 type occurred. Whether α3, β4 subunits have a pro-inflammatory or an inhibitory effect on ACh stimulation remains speculative. Aβ1-42 deposition, neuronal loss and increased astrocytes were detected, and a time-dependent change in components of the cholinergic anti-inflammatory pathway were observed. A greater understanding of time-dependent Aβ/nAChRs interactions may aid in defining new therapeutic strategies and novel molecular targets.
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Affiliation(s)
- Chiara D'Angelo
- Department of Medical, Oral and Biotechnological Sciences, University "G. D'Annunzio", Via dei Vestini 31, 66100, Chieti, Italy
| | - Erica Costantini
- Department of Medical, Oral and Biotechnological Sciences, University "G. D'Annunzio", Via dei Vestini 31, 66100, Chieti, Italy
| | - Nieves Salvador
- Department of Molecular, Cellular and Developmental Neurobiology, Instituto Cajal-CSIC, Madrid, Spain
| | - Michele Marchioni
- Department of Medical, Oral and Biotechnological Sciences, University "G. D'Annunzio", Via dei Vestini 31, 66100, Chieti, Italy
| | - Marta Di Nicola
- Department of Medical, Oral and Biotechnological Sciences, University "G. D'Annunzio", Via dei Vestini 31, 66100, Chieti, Italy
| | - Nigel H Greig
- Drug Design and Development Section, Translational Gerontology Branch, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224, USA
| | - Marcella Reale
- Department of Medical, Oral and Biotechnological Sciences, University "G. D'Annunzio", Via dei Vestini 31, 66100, Chieti, Italy.
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26
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Bhandari P, Vandael D, Fernández-Fernández D, Fritzius T, Kleindienst D, Önal C, Montanaro J, Gassmann M, Jonas P, Kulik A, Bettler B, Shigemoto R, Koppensteiner P. GABA B receptor auxiliary subunits modulate Cav2.3-mediated release from medial habenula terminals. eLife 2021; 10:68274. [PMID: 33913808 PMCID: PMC8121548 DOI: 10.7554/elife.68274] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 04/28/2021] [Indexed: 12/20/2022] Open
Abstract
The synaptic connection from medial habenula (MHb) to interpeduncular nucleus (IPN) is critical for emotion-related behaviors and uniquely expresses R-type Ca2+ channels (Cav2.3) and auxiliary GABAB receptor (GBR) subunits, the K+-channel tetramerization domain-containing proteins (KCTDs). Activation of GBRs facilitates or inhibits transmitter release from MHb terminals depending on the IPN subnucleus, but the role of KCTDs is unknown. We therefore examined the localization and function of Cav2.3, GBRs, and KCTDs in this pathway in mice. We show in heterologous cells that KCTD8 and KCTD12b directly bind to Cav2.3 and that KCTD8 potentiates Cav2.3 currents in the absence of GBRs. In the rostral IPN, KCTD8, KCTD12b, and Cav2.3 co-localize at the presynaptic active zone. Genetic deletion indicated a bidirectional modulation of Cav2.3-mediated release by these KCTDs with a compensatory increase of KCTD8 in the active zone in KCTD12b-deficient mice. The interaction of Cav2.3 with KCTDs therefore scales synaptic strength independent of GBR activation.
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Affiliation(s)
- Pradeep Bhandari
- Institute of Science and Technology Austria (IST Austria), Klosterneuburg, Austria
| | - David Vandael
- Institute of Science and Technology Austria (IST Austria), Klosterneuburg, Austria
| | | | | | - David Kleindienst
- Institute of Science and Technology Austria (IST Austria), Klosterneuburg, Austria
| | - Cihan Önal
- Institute of Science and Technology Austria (IST Austria), Klosterneuburg, Austria
| | - Jacqueline Montanaro
- Institute of Science and Technology Austria (IST Austria), Klosterneuburg, Austria
| | - Martin Gassmann
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Peter Jonas
- Institute of Science and Technology Austria (IST Austria), Klosterneuburg, Austria
| | - Akos Kulik
- Institute of Physiology II, Faculty of Medicine, Freiburg, Germany.,BIOSS Centre for Biological Signalling Studies, University of Freiburg, Freiburg, Germany
| | - Bernhard Bettler
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Ryuichi Shigemoto
- Institute of Science and Technology Austria (IST Austria), Klosterneuburg, Austria
| | - Peter Koppensteiner
- Institute of Science and Technology Austria (IST Austria), Klosterneuburg, Austria
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27
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Female rats display greater nicotine withdrawal-induced cellular activation of a central portion of the interpeduncular nucleus versus males: A study of Fos immunoreactivity within provisionally assigned interpeduncular subnuclei. Drug Alcohol Depend 2021; 221:108640. [PMID: 33640680 PMCID: PMC8043600 DOI: 10.1016/j.drugalcdep.2021.108640] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 01/31/2021] [Accepted: 02/02/2021] [Indexed: 01/05/2023]
Abstract
BACKGROUND The interpeduncular nucleus (>1840) (IPN) has been shown to modulate the behavioral effects of nicotine withdrawal in male rodents. To date, the contribution of this brain structure to sex differences in withdrawal is largely unexplored. METHODS This study compared neuronal activation, as reported by observable Fos expression in the IPN of nicotine-dependent female and male rats experiencing withdrawal. We provisionally localized the Fos-expressing cells to certain IPN subnuclei within Swanson's standardized brain atlas (2018). Adult female and male rats were prepared with a pump that delivered nicotine (3.2 mg/kg/day; base) continuously. Controls received a sham surgery. Fourteen days later, the rats received administration of saline or the nicotinic receptor antagonist, mecamylamine (3.0 mg/kg; salt), and physical signs and anxiety-like behavior were assessed. The rats were then euthanized and brain sections containing the IPN were processed for Fos immunofluorescence to infer the possible IPN subnuclei displaying differential activation between sexes. RESULTS Both female and male rats displayed withdrawal-induced Fos expression within the IPN. Compared to males, female rats displayed greater numbers of withdrawal-induced Fos-positive cells within a circumscribed portion of the IPN that may fall within the cytoarchitectural boundaries of the central subnucleus (>1840) (IPNc). The withdrawal-induced activation of the IPN was correlated with negative affective states in females, but not males. CONCLUSION These data suggest that a centrally located group of IPN cells, presumably situated partly or completely within the IPNc, play a role in modulating sex differences in negative affective states produced by withdrawal.
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28
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Carcoba LM, Uribe KP, Ortegon S, Mendez IA, DeBiasi M, O'Dell LE. Amino acid systems in the interpeduncular nucleus are altered in a sex-dependent manner during nicotine withdrawal. J Neurosci Res 2021; 100:1573-1584. [PMID: 33751631 PMCID: PMC8455708 DOI: 10.1002/jnr.24826] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 02/27/2021] [Indexed: 11/10/2022]
Abstract
Prior work in male rodents established that the medial habenula-interpeduncular nucleus (MHb-IPN) pathway modulates nicotine withdrawal. Specifically, withdrawal severity has been closely associated with inhibitory tone in the IPN via interneurons that release γ-aminobutyric acid (GABA). Inhibitory tone in the IPN is regulated by projections from the MHb that co-release glutamate and acetylcholine. Within the IPN, inhibitory tone is also regulated via corticotropin-releasing factor type 1 (CRF1) receptors that control GABA release from local interneurons. This study extends previous work by comparing sex differences in GABA, glutamate, as well serotonin levels in the IPN during precipitated nicotine withdrawal. Sex differences in withdrawal-induced neurochemical effects were also compared following systemic administration of a CRF1 receptor antagonist. The results revealed that there were no group differences in serotonin levels in the IPN. A major finding was that females displayed a larger withdrawal-induced increases in GABA levels in the IPN than males. Also, withdrawal increased IPN glutamate levels in a similar manner in females and males. Blockade of CRF1 receptors produced a larger suppression of the withdrawal-induced increases in GABA levels in the IPN of females versus males, an effect that was likely related to the robust increase in glutamate following administration of the CRF1 receptor antagonist in females. These data suggest that amino acid systems in the IPN modulate sex differences in the behavioral effects of nicotine withdrawal. Furthermore, our data imply that medications that target stress-induced activation of the IPN may reduce withdrawal severity, particularly in females.
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Affiliation(s)
- Luis M Carcoba
- Department of Psychology, The University of Texas at El Paso, El Paso, TX, USA
| | - Kevin P Uribe
- Department of Psychology, The University of Texas at El Paso, El Paso, TX, USA
| | - Sebastian Ortegon
- Department of Psychology, The University of Texas at El Paso, El Paso, TX, USA
| | - Ian A Mendez
- School of Pharmacy, The University of Texas at El Paso, El Paso, TX, USA
| | - Mariella DeBiasi
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Laura E O'Dell
- Department of Psychology, The University of Texas at El Paso, El Paso, TX, USA
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29
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Yoo H, Yang SH, Kim JY, Yang E, Park HS, Lee SJ, Rhyu IJ, Turecki G, Lee HW, Kim H. Down-regulation of habenular calcium-dependent secretion activator 2 induces despair-like behavior. Sci Rep 2021; 11:3700. [PMID: 33580180 PMCID: PMC7881199 DOI: 10.1038/s41598-021-83310-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 01/29/2021] [Indexed: 01/07/2023] Open
Abstract
Calcium-dependent secretion activator 2 (CAPS2) regulates the trafficking and exocytosis of neuropeptide-containing dense-core vesicles (DCVs). CAPS2 is prominently expressed in the medial habenula (MHb), which is related to depressive behavior; however, how MHb neurons cause depressive symptoms and the role of CAPS2 remains unclear. We hypothesized that dysfunction of MHb CAPS neurons might cause defects in neuropeptide secretion and the activity of monoaminergic centers, resulting in depressive-like behaviors. In this study, we examined (1) CAPS2 expression in the habenula of depression animal models and major depressive disorder patients and (2) the effects of down-regulation of MHb CAPS2 on the animal behaviors, synaptic transmission in the interpeduncular nucleus (IPN), and neuronal activity of monoamine centers. Habenular CAPS2 expression was decreased in the rat chronic restraint stress model, mouse learned helplessness model, and showed tendency to decrease in depression patients who died by suicide. Knockdown of CAPS2 in the mouse habenula evoked despair-like behavior and a reduction of the release of DCVs in the IPN. Neuronal activity of IPN and monoaminergic centers was also reduced. These results implicate MHb CAPS2 as playing a pivotal role in depressive behavior through the regulation of neuropeptide secretion of the MHb-IPN pathway and the activity of monoaminergic centers.
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Affiliation(s)
- Hyeijung Yoo
- Department of Anatomy, College of Medicine, Korea University, Seoul, 02841, Korea
- Department of Biomedical Sciences, Brain Korea 21 FOUR, College of Medicine, Korea University, Seoul, 02841, Korea
| | - Soo Hyun Yang
- Department of Anatomy, College of Medicine, Korea University, Seoul, 02841, Korea
- Department of Biomedical Sciences, Brain Korea 21 FOUR, College of Medicine, Korea University, Seoul, 02841, Korea
| | - Jin Yong Kim
- Department of Anatomy, College of Medicine, Korea University, Seoul, 02841, Korea
| | - Esther Yang
- Department of Anatomy, College of Medicine, Korea University, Seoul, 02841, Korea
- Department of Biomedical Sciences, Brain Korea 21 FOUR, College of Medicine, Korea University, Seoul, 02841, Korea
| | - Hyung Sun Park
- Department of Anatomy, College of Medicine, Korea University, Seoul, 02841, Korea
| | - Se Jeong Lee
- Department of Anatomy, College of Medicine, Korea University, Seoul, 02841, Korea
| | - Im Joo Rhyu
- Department of Anatomy, College of Medicine, Korea University, Seoul, 02841, Korea
- Department of Biomedical Sciences, Brain Korea 21 FOUR, College of Medicine, Korea University, Seoul, 02841, Korea
| | - Gustavo Turecki
- Department of Psychiatry, McGill University, Douglas, Mental Health University Institute, Montreal, QC, H4H 1R3, Canada
| | - Hyun Woo Lee
- Department of Anatomy, College of Medicine, Korea University, Seoul, 02841, Korea.
- Department of Biomedical Sciences, Brain Korea 21 FOUR, College of Medicine, Korea University, Seoul, 02841, Korea.
| | - Hyun Kim
- Department of Anatomy, College of Medicine, Korea University, Seoul, 02841, Korea.
- Department of Biomedical Sciences, Brain Korea 21 FOUR, College of Medicine, Korea University, Seoul, 02841, Korea.
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30
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Scholze P, Huck S. The α5 Nicotinic Acetylcholine Receptor Subunit Differentially Modulates α4β2 * and α3β4 * Receptors. Front Synaptic Neurosci 2020; 12:607959. [PMID: 33343327 PMCID: PMC7744819 DOI: 10.3389/fnsyn.2020.607959] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 11/11/2020] [Indexed: 11/30/2022] Open
Abstract
Nicotine, the principal reinforcing compound in tobacco, acts in the brain by activating neuronal nicotinic acetylcholine receptors (nAChRs). This review summarizes our current knowledge regarding how the α5 accessory nAChR subunit, encoded by the CHRNA5 gene, differentially modulates α4β2* and α3β4* receptors at the cellular level. Genome-wide association studies have linked a gene cluster in chromosomal region 15q25 to increased susceptibility to nicotine addiction, lung cancer, chronic obstructive pulmonary disease, and peripheral arterial disease. Interestingly, this gene cluster contains a non-synonymous single-nucleotide polymorphism (SNP) in the human CHRNA5 gene, causing an aspartic acid (D) to asparagine (N) substitution at amino acid position 398 in the α5 nAChR subunit. Although other SNPs have been associated with tobacco smoking behavior, efforts have focused predominantly on the D398 and N398 variants in the α5 subunit. In recent years, significant progress has been made toward understanding the role that the α5 nAChR subunit—and the role of the D398 and N398 variants—plays on nAChR function at the cellular level. These insights stem primarily from a wide range of experimental models, including receptors expressed heterologously in Xenopus oocytes, various cell lines, and neurons derived from human induced pluripotent stem cells (iPSCs), as well as endogenous receptors in genetically engineered mice and—more recently—rats. Despite providing a wealth of available data, however, these studies have yielded conflicting results, and our understanding of the modulatory role that the α5 subunit plays remains incomplete. Here, we review these reports and the various techniques used for expression and analysis in order to examine how the α5 subunit modulates key functions in α4β2* and α3β4* receptors, including receptor trafficking, sensitivity, efficacy, and desensitization. In addition, we highlight the strikingly different role that the α5 subunit plays in Ca2+ signaling between α4β2* and α3β4* receptors, and we discuss whether the N398 α5 subunit variant can partially replace the D398 variant.
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Affiliation(s)
- Petra Scholze
- Department of Pathobiology of the Nervous System, Center for Brain Research, Medical University of Vienna, Vienna, Austria
| | - Sigismund Huck
- Department of Pathobiology of the Nervous System, Center for Brain Research, Medical University of Vienna, Vienna, Austria
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31
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DeGroot SR, Zhao-Shea R, Chung L, Klenowski PM, Sun F, Molas S, Gardner PD, Li Y, Tapper AR. Midbrain Dopamine Controls Anxiety-like Behavior by Engaging Unique Interpeduncular Nucleus Microcircuitry. Biol Psychiatry 2020; 88:855-866. [PMID: 32800629 PMCID: PMC8043246 DOI: 10.1016/j.biopsych.2020.06.018] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 06/15/2020] [Accepted: 06/16/2020] [Indexed: 01/06/2023]
Abstract
BACKGROUND Dopamine (DA) is hypothesized to modulate anxiety-like behavior, although the precise role of DA in anxiety behaviors and the complete anxiety network in the brain have yet to be elucidated. Recent data indicate that dopaminergic projections from the ventral tegmental area (VTA) innervate the interpeduncular nucleus (IPN), but how the IPN responds to DA and what role this circuit plays in anxiety-like behavior are unknown. METHODS We expressed a genetically encoded G protein-coupled receptor activation-based DA sensor in mouse midbrain to detect DA in IPN slices using fluorescence imaging combined with pharmacology. Next, we selectively inhibited or activated VTA→IPN DAergic inputs via optogenetics during anxiety-like behavior. We used a biophysical approach to characterize DA effects on neural IPN circuits. Site-directed pharmacology was used to test if DA receptors in the IPN can regulate anxiety-like behavior. RESULTS DA was detected in mouse IPN slices. Silencing/activating VTA→IPN DAergic inputs oppositely modulated anxiety-like behavior. Two neuronal populations in the ventral IPN (vIPN) responded to DA via D1 receptors (D1Rs). vIPN neurons were controlled by a small population of D1R neurons in the caudal IPN that directly respond to VTA DAergic terminal stimulation and innervate the vIPN. IPN infusion of a D1R agonist and antagonist bidirectionally controlled anxiety-like behavior. CONCLUSIONS VTA DA engages D1R-expressing neurons in the caudal IPN that innervate vIPN, thereby amplifying the VTA DA signal to modulate anxiety-like behavior. These data identify a DAergic circuit that mediates anxiety-like behavior through unique IPN microcircuitry.
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Affiliation(s)
- Steven R. DeGroot
- Brudnick Neuropsychiatric Research Institute, Dept, of Neurobiology, University of Massachusetts Medical School, Worcester, MA, 01605, USA,Graduate Program in Neuroscience, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - Rubing Zhao-Shea
- Brudnick Neuropsychiatric Research Institute, Dept, of Neurobiology, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - Leeyup Chung
- Brudnick Neuropsychiatric Research Institute, Dept, of Neurobiology, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - Paul M. Klenowski
- Brudnick Neuropsychiatric Research Institute, Dept, of Neurobiology, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - Fangmiao Sun
- State Key Laboratory of Membrane Biology, Peking University School of Life Sciences, 100871 Beijing, China,PKU-IDG/McGovern Institute for Brain Research, 100871 Beijing, China
| | - Susanna Molas
- Brudnick Neuropsychiatric Research Institute, Dept, of Neurobiology, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - Paul D. Gardner
- Brudnick Neuropsychiatric Research Institute, Dept, of Neurobiology, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - Yulong Li
- State Key Laboratory of Membrane Biology, Peking University School of Life Sciences, 100871 Beijing, China,PKU-IDG/McGovern Institute for Brain Research, 100871 Beijing, China,Peking-Tsinghua Center for Life Sciences, 100871 Beijing, China
| | - Andrew R. Tapper
- Brudnick Neuropsychiatric Research Institute, Dept, of Neurobiology, University of Massachusetts Medical School, Worcester, MA, 01605, USA,Lead Contact, Correspondence to:
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32
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Midbrain circuits of novelty processing. Neurobiol Learn Mem 2020; 176:107323. [PMID: 33053429 DOI: 10.1016/j.nlm.2020.107323] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 09/22/2020] [Accepted: 10/02/2020] [Indexed: 12/22/2022]
Abstract
Novelty triggers an increase in orienting behavior that is critical to evaluate the potential salience of unknown events. As novelty becomes familiar upon repeated encounters, this increase in response rapidly habituates as a form of behavioral adaptation underlying goal-directed behaviors. Many neurodevelopmental, psychiatric and neurodegenerative disorders are associated with abnormal responses to novelty and/or familiarity, although the neuronal circuits and cellular/molecular mechanisms underlying these natural behaviors in the healthy brain are largely unknown, as is the maladaptive processes that occur to induce impairment of novelty signaling in diseased brains. In rodents, the development of cutting-edge tools that allow for measurements of real time activity dynamics in selectively identified neuronal ensembles by gene expression signatures is beginning to provide advances in understanding the neural bases of the novelty response. Accumulating evidence indicate that midbrain circuits, the majority of which linked to dopamine transmission, promote exploratory assessments and guide approach/avoidance behaviors to different types of novelty via specific projection sites. The present review article focuses on midbrain circuit analysis relevant to novelty processing and habituation with familiarity.
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Rehman NU, Esmaeilpour K, Joushi S, Abbas M, Al-Rashida M, Rauf K, Masoumi-Ardakani Y. Effect of 4-Fluoro-N-(4-sulfamoylbenzyl) Benzene Sulfonamide on cognitive deficits and hippocampal plasticity during nicotine withdrawal in rats. Biomed Pharmacother 2020; 131:110783. [PMID: 33152941 DOI: 10.1016/j.biopha.2020.110783] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/03/2020] [Accepted: 09/17/2020] [Indexed: 12/11/2022] Open
Abstract
Withdrawal from chronic nicotine has damaging effects on a variety of learning and memory tasks. Various Sulfonamides that act as carbonic anhydrase inhibitors have documented role in modulation of various cognitive, learning, and memory processing. We investigated the effects of 4-Fluoro-N-(4-sulfamoylbenzyl) Benzene Sulfonamide (4-FBS) on nicotine withdrawal impairments in rats using Morris water maze (MWM), Novel object recognition, Passive avoidance, and open field tasks. Also, Brain-derived neurotrophic factor (BDNF) profiling and in vivo field potential recording were assessed. Rats were exposed to saline or chronic nicotine 3.8 mg/kg subcutaneously for 14 days in four divided doses, spontaneous nicotine withdrawal was induced by quitting nicotine for 72 h (hrs). Animals received 4-FBS at 20, 40, and 60 mg/kg after 72 h of withdrawal in various behavioral and electrophysiological paradigms. Nicotine withdrawal causes a deficit in learning and long-term memory in the MWM task. No significant difference was found in novel object recognition tasks among all groups while in passive avoidance task nicotine withdrawal resulted in a deficit of hippocampus-dependent fear learning. Anxiety like behavior was observed during nicotine withdrawal. Plasma BDNF level was reduced during nicotine withdrawal as compared to the saline group reflecting mild cognitive impairment, stress, and depression. Withdrawal from chronic nicotine altered hippocampal plasticity, caused suppression of long-term potentiation (LTP) in the CA1 area of the hippocampus. Our results showed that 4-FBS at 40 and 60 mg/kg significantly prevented nicotine withdrawal-induced cognitive deficits in behavioral as well as electrophysiological studies. 4-FBS at 60 mg/kg upsurge nicotine withdrawal-induced decrease in plasma BDNF. We conclude that 4-FBS at 40 and 60 mg /kg effectively prevented chronic nicotine withdrawal-induced impairment in long term potentiation and cognitive performance.
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Affiliation(s)
- Naeem Ur Rehman
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran; Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, Pakistan
| | - Khadijeh Esmaeilpour
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran.
| | - Sara Joushi
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Muzaffar Abbas
- Department of Pharmacy, Capital University of Science and Technology (CUST), Islamabad, Pakistan
| | - Mariya Al-Rashida
- Department of Chemistry, Forman Christian College (A Chartered University), Ferozepur Road, Lahore, 54600, Pakistan
| | - Khalid Rauf
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, Pakistan.
| | - Yaser Masoumi-Ardakani
- Physiology Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
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34
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T-Type Calcium Channels Contribute to Burst Firing in a Subpopulation of Medial Habenula Neurons. eNeuro 2020; 7:ENEURO.0201-20.2020. [PMID: 32719103 PMCID: PMC7433892 DOI: 10.1523/eneuro.0201-20.2020] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 07/03/2020] [Accepted: 07/06/2020] [Indexed: 11/24/2022] Open
Abstract
Action potential (AP) burst firing caused by the activation of low-voltage-activated T-type Ca2+ channels is a unique mode of neuronal firing. T-type channels have been implicated in diverse physiological and pathophysiological processes, including epilepsy, autism, and mood regulation, but the brain structures involved remain incompletely understood. The medial habenula (MHb) is an epithalamic structure implicated in anxiety-like and withdrawal behavior. Previous studies have shown that MHb neurons fire tonic APs at a frequency of ∼2–10 Hz or display depolarized low-amplitude membrane oscillations. Here, we report in C57BL/6J mice that a subpopulation of MHb neurons are capable of firing transient, high-frequency AP bursts mediated by T-type channels. Burst firing was observed following rebounding from hyperpolarizing current injections or during depolarization from hyperpolarized membrane potentials in ∼20% of MHb neurons. It was rarely observed at baseline but could be evoked in MHb neurons displaying different initial activity states. Further, we show that T-type channel mRNA, in particular Cav3.1, is expressed in the MHb in both cholinergic and substance P-ergic neurons. Pharmacological Cav3 antagonism blocked both burst firing and evoked Ca2+ currents in MHb neurons. Additionally, we observed high-frequency AP doublet firing at sustained depolarized membrane potentials that was independent of T-type channels. Thus, there is a greater diversity of AP firing patterns in MHb neurons than previously identified, including T-type channel-mediated burst firing, which may uniquely contribute to behaviors with relevance to neuropsychiatric disease.
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35
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Parajuli LK, Wako K, Maruo S, Kakuta S, Koike M. Unique synaptic topography of crest-type synapses in the interpeduncular nucleus. Biochem Biophys Res Commun 2020; 530:130-135. [PMID: 32828274 DOI: 10.1016/j.bbrc.2020.06.046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 06/10/2020] [Indexed: 12/21/2022]
Abstract
Neurons in the central nervous system display a great diversity of synaptic architecture. While much of our knowledge on the excitatory synapse morphology derives from the prototypical asymmetric synapses, little has been studied about the atypical crest-type synapse that exists in the restricted brain regions. Here, we used focused ion beam scanning electron microscopy (FIB/SEM) to image a neuropil volume of interpeduncular nucleus (IPN) and manually reconstructed several dendrites to obtain an insight about the topography and quantitative features of crest synapses. Three-dimensional reconstruction showed numerous U-shaped structures protruding from the IPN dendrites. On either faces of the U-shaped structure, a pair of crest synapses are aligned in parallel such that there exists a positive correlation between the postsynaptic density (PSD) area of synapses that participate in pair formation. Interestingly, mitochondria are excluded from the site of crest synapses. Several presynaptic axons run through the hollow, cylindrical space of the U-shape grooves such that the plasma membrane of the axon and the dendrite are organized in a tight opposition without any intervening glial membrane. Unlike the peculiar dendritic morphology, IPN neurons possess typical somatic morphology with an oval, centrally located nucleus. In conclusion, our data reveals a hitherto unknown unique topographical feature of crest synapses in the IPN.
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Affiliation(s)
- Laxmi Kumar Parajuli
- Department of Cell Biology and Neuroscience, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan.
| | - Ken Wako
- Department of Cell Biology and Neuroscience, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Suiki Maruo
- Department of Cell Biology and Neuroscience, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Soichiro Kakuta
- Department of Cellular and Molecular Neuropathology, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan; Laboratory of Morphology and Image Analysis, Research Support Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Masato Koike
- Department of Cell Biology and Neuroscience, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan; Advanced Research Institute for Health Science, Juntendo University, Tokyo, 113-8421, Japan.
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36
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Xu Y, Cao K, Guo B, Xiang J, Dong YT, Qi XL, Yu WF, Xiao Y, Guan ZZ. Lowered levels of nicotinic acetylcholine receptors and elevated apoptosis in the hippocampus of brains from patients with type 2 diabetes mellitus and db/db mice. Aging (Albany NY) 2020; 12:14205-14218. [PMID: 32701482 PMCID: PMC7425467 DOI: 10.18632/aging.103435] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 05/25/2020] [Indexed: 02/05/2023]
Abstract
Cognitive impairment caused by diabetes has been gradually recognized. Generally, nicotinic acetylcholine receptors (nAChRs) play an important role in the pathogenesis in dementia disorders including Alzheimer's disease (AD). However, the expression of nAChRs in the brains of type 2 diabetes mellitus (T2DM) is unexplored. This study explored the alterations of nAChRs in the postmortem brains of patients with T2DM and brains of db/db mice. Morris water maze test was used to appraise the ability of spatial learning and memory; Western blotting and RT-qPCR were performed to determine the expressions of target protein and mRNA, respectively; TUNEL was used to detect the apoptosis of neurons. We found that the protein levels of nAChR α7 and α4 subunits were significantly decreased and the apoptosis rates in neurons elevated in the hippocampus of T2DM patients and db/db mice as comparison to controls. Furthermore, the db/db mice exhibited the impaired cognition, the elevated level of pro-apoptotic protein and the reduced level of anti-apoptotic and synaptic proteins. This study shows the lowered level of nAChR α7 and α4 subunits and the elevated apoptosis in the hippocampus of T2DM patients and db/db mice, which might help explain the impaired cognition in T2DM.
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Affiliation(s)
- Yi Xu
- Departments of Pathology at Guizhou Medical University and the Affiliated Hospital of Guizhou Medical University, Guiyang 550004, P. R. of China.,Key Laboratory of Endemic and Ethnic Diseases, Guizhou Medical University of the Ministry of Education, Guiyang 550004, P. R. of China
| | - Kun Cao
- Key Laboratory of Endemic and Ethnic Diseases, Guizhou Medical University of the Ministry of Education, Guiyang 550004, P. R. of China
| | - Bing Guo
- Department of Pathophysiology, Guizhou Medical University, Guiyang 550004, P. R. of China
| | - Jie Xiang
- Departments of Pathology at Guizhou Medical University and the Affiliated Hospital of Guizhou Medical University, Guiyang 550004, P. R. of China.,Key Laboratory of Endemic and Ethnic Diseases, Guizhou Medical University of the Ministry of Education, Guiyang 550004, P. R. of China
| | - Yang-Ting Dong
- Key Laboratory of Endemic and Ethnic Diseases, Guizhou Medical University of the Ministry of Education, Guiyang 550004, P. R. of China.,Provincial Key Laboratory of Medical Molecular Biology, Guiyang 550004, P. R. of China
| | - Xiao-Lan Qi
- Key Laboratory of Endemic and Ethnic Diseases, Guizhou Medical University of the Ministry of Education, Guiyang 550004, P. R. of China.,Provincial Key Laboratory of Medical Molecular Biology, Guiyang 550004, P. R. of China
| | - Wen-Feng Yu
- Key Laboratory of Endemic and Ethnic Diseases, Guizhou Medical University of the Ministry of Education, Guiyang 550004, P. R. of China.,Provincial Key Laboratory of Medical Molecular Biology, Guiyang 550004, P. R. of China
| | - Yan Xiao
- Key Laboratory of Endemic and Ethnic Diseases, Guizhou Medical University of the Ministry of Education, Guiyang 550004, P. R. of China.,Provincial Key Laboratory of Medical Molecular Biology, Guiyang 550004, P. R. of China
| | - Zhi-Zhong Guan
- Departments of Pathology at Guizhou Medical University and the Affiliated Hospital of Guizhou Medical University, Guiyang 550004, P. R. of China.,Key Laboratory of Endemic and Ethnic Diseases, Guizhou Medical University of the Ministry of Education, Guiyang 550004, P. R. of China.,Provincial Key Laboratory of Medical Molecular Biology, Guiyang 550004, P. R. of China
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37
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Shiotani H, Miyata M, Kameyama T, Mandai K, Yamasaki M, Watanabe M, Mizutani K, Takai Y. Nectin‐2α is localized at cholinergic neuron dendrites and regulates synapse formation in the medial habenula. J Comp Neurol 2020; 529:450-477. [DOI: 10.1002/cne.24958] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 05/08/2020] [Accepted: 05/14/2020] [Indexed: 11/09/2022]
Affiliation(s)
- Hajime Shiotani
- Division of Pathogenetic Signaling, Department of Biochemistry and Molecular Biology Kobe University Graduate School of Medicine Kobe Japan
| | - Muneaki Miyata
- Division of Pathogenetic Signaling, Department of Biochemistry and Molecular Biology Kobe University Graduate School of Medicine Kobe Japan
| | - Takeshi Kameyama
- Division of Pathogenetic Signaling, Department of Biochemistry and Molecular Biology Kobe University Graduate School of Medicine Kobe Japan
| | - Kenji Mandai
- Division of Pathogenetic Signaling, Department of Biochemistry and Molecular Biology Kobe University Graduate School of Medicine Kobe Japan
- Department of Molecular and Cellular Neurobiology Kitasato University Graduate School of Medical Sciences Sagamihara Japan
- Department of Biochemistry Kitasato University School of Medicine Sagamihara Japan
| | - Miwako Yamasaki
- Department of Anatomy, Faculty of Medicine Hokkaido University Sapporo Japan
| | - Masahiko Watanabe
- Department of Anatomy, Faculty of Medicine Hokkaido University Sapporo Japan
| | - Kiyohito Mizutani
- Division of Pathogenetic Signaling, Department of Biochemistry and Molecular Biology Kobe University Graduate School of Medicine Kobe Japan
| | - Yoshimi Takai
- Division of Pathogenetic Signaling, Department of Biochemistry and Molecular Biology Kobe University Graduate School of Medicine Kobe Japan
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38
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Glover LR, Postle AF, Holmes A. Touchscreen-based assessment of risky-choice in mice. Behav Brain Res 2020; 393:112748. [PMID: 32531231 DOI: 10.1016/j.bbr.2020.112748] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 05/15/2020] [Accepted: 05/30/2020] [Indexed: 01/29/2023]
Abstract
Addictions are characterized by choices made to satisfy the addiction despite the risk it could produce an adverse consequence. Here, we developed a murine version of a 'risky decision-making' task (RDT), in which mice could respond on a touchscreen panel to obtain either a large milkshake reward associated with varying probability of footshock, or a smaller amount of the same reward that was never punished. Results showed that (the following font is incorrectly smaller/subscripted) mice shifted choice from the large to small reward stimulus as shock probability increased. Immunohistochemical analysis revealed more Fos-positive cells in prelimbic cortex (PL) and basal amygdala (BA) after RDT testing, and a strong anti-correlation between infralimbic cortex (IL) activity and choice of the large reward stimulus under likely (75-100 % probability) punishment. These findings establish an assay for risky choice in mice and provide preliminary insight into the underlying neural substrates.
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Affiliation(s)
- Lucas R Glover
- Laboratory of Behavioral and Genomic Neuroscience, National Institute on Alcohol Abuse and Alcoholism, NIH, Bethesda, MD, USA.
| | - Abagail F Postle
- Laboratory of Behavioral and Genomic Neuroscience, National Institute on Alcohol Abuse and Alcoholism, NIH, Bethesda, MD, USA
| | - Andrew Holmes
- Laboratory of Behavioral and Genomic Neuroscience, National Institute on Alcohol Abuse and Alcoholism, NIH, Bethesda, MD, USA.
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39
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Garey L, Olofsson H, Garza T, Shepherd JM, Smit T, Zvolensky MJ. The Role of Anxiety in Smoking Onset, Severity, and Cessation-Related Outcomes: a Review of Recent Literature. Curr Psychiatry Rep 2020; 22:38. [PMID: 32506166 DOI: 10.1007/s11920-020-01160-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE OF REVIEW Anxiety is one of the most common mental health conditions globally and co-occurs with smoking at a markedly high rate. The present review offers a narrative overview of the most recent research on the role of anxiety in smoking onset, maintenance, and cessation-related outcomes. Additionally, given the rise in electronic cigarette use, we review the emerging literature on the influence of anxiety on e-cigarette use. RECENT FINDINGS Evidence across studies varied as to the role of anxiety or anxiety symptoms in smoking behavior. The most consistent findings suggested that those with anxiety are more likely to be a smoker, supporting a high rate of co-occurrence across these conditions. Less consistent evidence was observed for the association between anxiety and onset, indicators of severity, and cessation outcomes. Although there is robust evidence for an association between smoking and anxiety, there were considerable discrepancies for the precise role of anxiety in smoking onset, severity, and cessation outcomes. Future work utilizing more sophisticated methodologies is needed to identify causal relations as well as putative moderators and mediators of the anxiety-smoking relation.
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Affiliation(s)
- Lorra Garey
- Department of Psychology, University of Houston, Room 126 Heyne Building, Houston, TX, 77204, USA.
| | - Hannah Olofsson
- Department of Psychology, University of Houston, Room 126 Heyne Building, Houston, TX, 77204, USA
| | - Tatyana Garza
- Department of Psychology, University of Houston, Room 126 Heyne Building, Houston, TX, 77204, USA
| | - Justin M Shepherd
- Department of Psychology, University of Houston, Room 126 Heyne Building, Houston, TX, 77204, USA
| | - Tanya Smit
- Department of Psychology, University of Houston, Room 126 Heyne Building, Houston, TX, 77204, USA
| | - Michael J Zvolensky
- Department of Psychology, University of Houston, Room 126 Heyne Building, Houston, TX, 77204, USA.,Department of Behavioral Science, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.,HEALTH Institute, University of Houston, Houston, TX, 77204, USA
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40
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Otsu Y, Darcq E, Pietrajtis K, Mátyás F, Schwartz E, Bessaih T, Abi Gerges S, Rousseau CV, Grand T, Dieudonné S, Paoletti P, Acsády L, Agulhon C, Kieffer BL, Diana MA. Control of aversion by glycine-gated GluN1/GluN3A NMDA receptors in the adult medial habenula. Science 2020; 366:250-254. [PMID: 31601771 DOI: 10.1126/science.aax1522] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 09/17/2019] [Indexed: 01/05/2023]
Abstract
The unconventional N-methyl-d-aspartate (NMDA) receptor subunits GluN3A and GluN3B can, when associated with the other glycine-binding subunit GluN1, generate excitatory conductances purely activated by glycine. However, functional GluN1/GluN3 receptors have not been identified in native adult tissues. We discovered that GluN1/GluN3A receptors are operational in neurons of the mouse adult medial habenula (MHb), an epithalamic area controlling aversive physiological states. In the absence of glycinergic neuronal specializations in the MHb, glial cells tuned neuronal activity via GluN1/GluN3A receptors. Reducing GluN1/GluN3A receptor levels in the MHb prevented place-aversion conditioning. Our study extends the physiological and behavioral implications of glycine by demonstrating its control of negatively valued emotional associations via excitatory glycinergic NMDA receptors.
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Affiliation(s)
- Y Otsu
- Institut de Biologie de l'École Normale Supérieure (IBENS), INSERM U1024, CNRS UMR8197, École Normale Supérieure, Université PSL, 75005 Paris, France
| | - E Darcq
- Department of Psychiatry, School of Medicine, Douglas Hospital Research Center, McGill University, Montreal, QC H4H 1R3, Canada
| | - K Pietrajtis
- Sorbonne Université, CNRS, INSERM, Neurosciences Paris Seine - Institut de Biologie Paris Seine (NPS-IBPS), 75005 Paris, France
| | - F Mátyás
- Laboratory of Thalamus Research, Institute of Experimental Medicine, Hungarian Academy of Sciences, 1083 Budapest, Hungary.,Research Centre for Natural Sciences Institute of Cognitive Neuroscience and Psychology, 1117 Budapest, Hungary.,Department of Anatomy and Histology, University of Veterinary Medicine, 1078 Budapest, Hungary
| | - E Schwartz
- Sorbonne Université, CNRS, INSERM, Neurosciences Paris Seine - Institut de Biologie Paris Seine (NPS-IBPS), 75005 Paris, France
| | - T Bessaih
- Sorbonne Université, CNRS, INSERM, Neurosciences Paris Seine - Institut de Biologie Paris Seine (NPS-IBPS), 75005 Paris, France
| | - S Abi Gerges
- Sorbonne Université, CNRS, INSERM, Neurosciences Paris Seine - Institut de Biologie Paris Seine (NPS-IBPS), 75005 Paris, France
| | - C V Rousseau
- Institut de Biologie de l'École Normale Supérieure (IBENS), INSERM U1024, CNRS UMR8197, École Normale Supérieure, Université PSL, 75005 Paris, France
| | - T Grand
- Institut de Biologie de l'École Normale Supérieure (IBENS), INSERM U1024, CNRS UMR8197, École Normale Supérieure, Université PSL, 75005 Paris, France
| | - S Dieudonné
- Institut de Biologie de l'École Normale Supérieure (IBENS), INSERM U1024, CNRS UMR8197, École Normale Supérieure, Université PSL, 75005 Paris, France
| | - P Paoletti
- Institut de Biologie de l'École Normale Supérieure (IBENS), INSERM U1024, CNRS UMR8197, École Normale Supérieure, Université PSL, 75005 Paris, France
| | - L Acsády
- Laboratory of Thalamus Research, Institute of Experimental Medicine, Hungarian Academy of Sciences, 1083 Budapest, Hungary
| | - C Agulhon
- Integrative Neuroscience and Cognition Center, CNRS UMR8002, Glia-Glia and Glia-Neuron Interactions Group, Paris Descartes University, 75006 Paris, France
| | - B L Kieffer
- Department of Psychiatry, School of Medicine, Douglas Hospital Research Center, McGill University, Montreal, QC H4H 1R3, Canada
| | - M A Diana
- Sorbonne Université, CNRS, INSERM, Neurosciences Paris Seine - Institut de Biologie Paris Seine (NPS-IBPS), 75005 Paris, France.
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41
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Simpson S, Shankar K, Kimbrough A, George O. Role of corticotropin-releasing factor in alcohol and nicotine addiction. Brain Res 2020; 1740:146850. [PMID: 32330519 DOI: 10.1016/j.brainres.2020.146850] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 03/31/2020] [Accepted: 04/20/2020] [Indexed: 12/11/2022]
Abstract
The two most prevalent substance use disorders involve alcohol and nicotine, which are often co-abused. Robust preclinical and translational evidence indicates that individuals initiate drug use for the acute rewarding effects of the substance. The development of negative emotional states is key for the transition from recreational use to substance use disorders as subjects seek the substance to obtain relief from the negative emotional states of acute withdrawal and protracted abstinence. The neuropeptide corticotropin-releasing factor (CRF) is a major regulator of the brain stress system and key in the development of negative affective states. The present review examines the role of CRF in preclinical models of alcohol and nicotine abuse and explores links between CRF and anxiety-like, dysphoria-like, and other negative affective states. Finally, the present review discusses preclinical models of nicotine and alcohol use with regard to the CRF system, advances in molecular and genetic manipulations of CRF, and the importance of examining both males and females in this field of research.
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Affiliation(s)
- Sierra Simpson
- Department of Psychiatry, University of California, San Diego, School of Medicine, La Jolla, CA 92093, United States; Department of Neuroscience, Scripps Research, La Jolla, CA 92037, United States
| | - Kokila Shankar
- Department of Psychiatry, University of California, San Diego, School of Medicine, La Jolla, CA 92093, United States; Department of Neuroscience, Scripps Research, La Jolla, CA 92037, United States
| | - Adam Kimbrough
- Department of Psychiatry, University of California, San Diego, School of Medicine, La Jolla, CA 92093, United States
| | - Olivier George
- Department of Psychiatry, University of California, San Diego, School of Medicine, La Jolla, CA 92093, United States.
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Isoliquiritigenin Attenuates Anxiety-Like Behavior and Locomotor Sensitization in Rats after Repeated Exposure to Nicotine. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:9692321. [PMID: 32256666 PMCID: PMC7102418 DOI: 10.1155/2020/9692321] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 02/21/2020] [Indexed: 11/18/2022]
Abstract
As important components of positive and negative reinforcement, locomotor sensitization and withdrawal anxiety following repeated exposure to nicotine (NIC) constitute crucial risk factors for relapse to NIC use after abstinence. Glycyrrhiza radix (G. radix), an important tonic used in traditional Oriental medicine, has not only anxiolytic effects but also reduces NIC-induced locomotor sensitization. Isoliquiritigenin (ISL), a bioactive ingredient of G. radix, also exhibits neuropharmacological effects, including anxiolytic action. Previously, we reported that ISL suppressed cocaine-induced extracellular dopamine release in the nucleus accumbens shell (NaccSh) and attenuated methamphetamine-induced neurotoxicity. The present study was performed to evaluate the effects of ISL on both NIC withdrawal anxiety and locomotor sensitization. Adult male rats received subcutaneous administration of NIC hydrogen tartrate (0.4 mg/kg, twice a day) for 7 days followed by 4 days of withdrawal. During the period of NIC withdrawal, the rats received four intragastric treatments with ISL (3, 10, or 30 mg/kg/day). All three doses of ISL significantly inhibited NIC withdrawal-induced anxiety-like behaviors in the elevated plus maze (EPM) test, but only the 10 mg/kg/day and 30 mg/kg/day ISL doses attenuated locomotor sensitization induced by a challenge dose of NIC. Intracerebroventricular ISL also inhibited both NIC-induced withdrawal anxiety and locomotor sensitization, but intra-NaccSh injection of ISL blocked only NIC locomotor sensitization, which was abolished by post-ISL infusion of tert-butyl hydroperoxide (an oxidant) or N-methyl-d-aspartate (NMDA) into the NaccSh. Moreover, there was increased protein expression of phosphorylated Erk1/2 in the NIC-sensitized NaccSh, which was suppressed by ISL. Taken together, these results suggest that ISL can inhibit repeated NIC-induced withdrawal anxiety and locomotor sensitization, and the latter is mediated by antagonizing accumbal reactive oxygen species and NMDA receptor signaling.
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The habenular G-protein-coupled receptor 151 regulates synaptic plasticity and nicotine intake. Proc Natl Acad Sci U S A 2020; 117:5502-5509. [PMID: 32098843 DOI: 10.1073/pnas.1916132117] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
The habenula, an ancient small brain area in the epithalamus, densely expresses nicotinic acetylcholine receptors and is critical for nicotine intake and aversion. As such, identification of strategies to manipulate habenular activity may yield approaches to treat nicotine addiction. Here we show that GPR151, an orphan G-protein-coupled receptor (GPCR) highly enriched in the habenula of humans and rodents, is expressed at presynaptic membranes and synaptic vesicles and associates with synaptic components controlling vesicle release and ion transport. Deletion of Gpr151 inhibits evoked neurotransmission but enhances spontaneous miniature synaptic currents and eliminates short-term plasticity induced by nicotine. We find that GPR151 couples to the G-alpha inhibitory protein Gαo1 to reduce cyclic adenosine monophosphate (cAMP) levels in mice and in GPR151-expressing cell lines that are amenable to ligand screens. Gpr151- knockout (KO) mice show diminished behavioral responses to nicotine and self-administer greater quantities of the drug, phenotypes rescued by viral reexpression of Gpr151 in the habenula. These data identify GPR151 as a critical modulator of habenular function that controls nicotine addiction vulnerability.
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Integrated miRNA-/mRNA-Seq of the Habenulo-Interpeduncular Circuit During Acute Nicotine Withdrawal. Sci Rep 2020; 10:813. [PMID: 31965003 PMCID: PMC6972841 DOI: 10.1038/s41598-020-57907-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 01/08/2020] [Indexed: 01/28/2023] Open
Abstract
Tobacco use is the leading preventable cause of mortality in the world. The limited number of smoking cessation aids currently available are minimally effective, highlighting the need for novel therapeutic interventions. We describe a genome-wide approach to identify potential candidates for such interventions. Next-generation sequencing was performed using RNA isolated from the habenulo-interpeduncular circuit of male mice withdrawn from chronic nicotine treatment. This circuit plays a central role in the nicotine withdrawal response. Differentially expressed miRNAs and mRNAs were validated using RT-qPCR. Many of the differentially expressed mRNAs are predicted targets of reciprocally expressed miRNAs. We illustrate the utility of the dataset by demonstrating that knockdown in the interpeduncular nucleus of a differentially expressed mRNA, that encoding profilin 2, is sufficient to induce anxiety-related behavior. Importantly, profilin 2 knockdown in the ventral tegmental area did not affect anxiety behavior. Our data reveal wide-spread changes in gene expression within the habenulo-interpeduncular circuit during nicotine withdrawal. This dataset should prove to be a valuable resource leading to the identification of substrates for the design of innovative smoking cessation aids.
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TrkB hyperactivity contributes to brain dysconnectivity, epileptogenesis, and anxiety in zebrafish model of Tuberous Sclerosis Complex. Proc Natl Acad Sci U S A 2020; 117:2170-2179. [PMID: 31932427 PMCID: PMC6995026 DOI: 10.1073/pnas.1910834117] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Tuberous Sclerosis Complex (TSC) is a rare genetic disease that manifests with early symptoms, including cortical malformations, childhood epilepsy, and TSC-associated neuropsychiatric disorders (TANDs). Cortical malformations arise during embryonic development and have been linked to childhood epilepsy before, but the underlying mechanisms of this relationship remain insufficiently understood. Zebrafish have emerged as a convenient model to study elementary neurodevelopment; however, without in-depth functional analysis, the Tsc2-deficient zebrafish line cannot be used for studies of TANDs or new drug screening. In this study, we found that the lack of Tsc2 in zebrafish resulted in heterotopias and hyperactivation of the mTorC1 pathway in pallial regions, which are homologous to the mammalian cortex. We observed commissural thinning that was responsible for brain dysconnectivity, recapitulating TSC pathology in human patients. The lack of Tsc2 also delayed axonal development and caused aberrant tract fasciculation, corresponding to the abnormal expression of genes involved in axon navigation. The mutants underwent epileptogenesis that resulted in nonmotor seizures and exhibited increased anxiety-like behavior. We further mapped discrete parameters of locomotor activity to epilepsy-like and anxiety-like behaviors, which were rescued by reducing tyrosine receptor kinase B (TrkB) signaling. Moreover, in contrast to treatment with vigabatrin and rapamycin, TrkB inhibition rescued brain dysconnectivity and anxiety-like behavior. These data reveal that commissural thinning results in the aberrant regulation of anxiety, providing a mechanistic link between brain anatomy and human TANDs. Our findings also implicate TrkB signaling in the complex pathology of TSC and reveal a therapeutic target.
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Metzger M, Souza R, Lima LB, Bueno D, Gonçalves L, Sego C, Donato J, Shammah-Lagnado SJ. Habenular connections with the dopaminergic and serotonergic system and their role in stress-related psychiatric disorders. Eur J Neurosci 2019; 53:65-88. [PMID: 31833616 DOI: 10.1111/ejn.14647] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/28/2019] [Accepted: 12/09/2019] [Indexed: 12/19/2022]
Abstract
The habenula (Hb) is a phylogenetically old epithalamic structure differentiated into two nuclear complexes, the medial (MHb) and lateral habenula (LHb). After decades of search for a great unifying function, interest in the Hb resurged when it was demonstrated that LHb plays a major role in the encoding of aversive stimuli ranging from noxious stimuli to the loss of predicted rewards. Consistent with a role as an anti-reward center, aberrant LHb activity has now been identified as a key factor in the pathogenesis of major depressive disorder. Moreover, both MHb and LHb emerged as new players in the reward circuitry by primarily mediating the aversive properties of distinct drugs of abuse. Anatomically, the Hb serves as a bridge that links basal forebrain structures with monoaminergic nuclei in the mid- and hindbrain. So far, research on Hb has focused on the role of the LHb in regulating midbrain dopamine release. However, LHb/MHb are also interconnected with the dorsal (DR) and median (MnR) raphe nucleus. Hence, it is conceivable that some of the habenular functions are at least partly mediated by the complex network that links MHb/LHb with pontomesencephalic monoaminergic nuclei. Here, we summarize research about the topography and transmitter phenotype of the reciprocal connections between the LHb and ventral tegmental area-nigra complex, as well as those between the LHb and DR/MnR. Indirect MHb outputs via interpeduncular nucleus to state-setting neuromodulatory networks will also be commented. Finally, we discuss the role of specific LHb-VTA and LHb/MHb-raphe circuits in anxiety and depression.
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Affiliation(s)
- Martin Metzger
- Department of Physiology & Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Rudieri Souza
- Department of Physiology & Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Leandro B Lima
- Department of Physiology & Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Debora Bueno
- Department of Physiology & Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Luciano Gonçalves
- Department of Human Anatomy, Federal University of the Triângulo Mineiro, Uberaba, Brazil
| | - Chemutai Sego
- Department of Physiology & Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Jose Donato
- Department of Physiology & Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Sara J Shammah-Lagnado
- Department of Physiology & Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
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Pre-Exposure to Nicotine with Nocturnal Abstinence Induces Epigenetic Changes that Potentiate Nicotine Preference. Mol Neurobiol 2019; 57:1828-1846. [DOI: 10.1007/s12035-019-01843-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 11/22/2019] [Indexed: 12/26/2022]
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Mathis V, Kenny PJ. From controlled to compulsive drug-taking: The role of the habenula in addiction. Neurosci Biobehav Rev 2019; 106:102-111. [PMID: 29936111 PMCID: PMC9871871 DOI: 10.1016/j.neubiorev.2018.06.018] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 05/15/2018] [Accepted: 06/20/2018] [Indexed: 01/27/2023]
Abstract
Addiction is now recognized as a neurobiological and cognitive brain disorder and is generally viewed as a switch from recreational or voluntary to compulsive substance use despite aversive consequences. The habenula, composed of medial (MHb) and lateral (LHb) domains, has been implicated in regulating behavioral flexibility and anxiety-related behaviors and is considered a core component of the brain "anti-reward" system. These functions position the habenula to influence voluntary behaviors. Consistent with this view, emerging evidence points to alterations in habenula activity as important factors to contributing the loss of control over the use of drugs of abuse and the emergence of compulsive drug seeking behaviors. In this review, we will discuss the general functions of the MHb and LHb and describe how these functional properties allow this brain region to promote or suppress volitional behaviors. Then, we highlight mechanisms by which drugs of abuse may alter habenular activity, precipitating the emergence of addiction-relevant behavioral abnormalities.
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Affiliation(s)
- Victor Mathis
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York 10029-6574, USA.
| | - Paul J Kenny
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York 10029-6574, USA.
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Flannery JS, Riedel MC, Poudel R, Laird AR, Ross TJ, Salmeron BJ, Stein EA, Sutherland MT. Habenular and striatal activity during performance feedback are differentially linked with state-like and trait-like aspects of tobacco use disorder. SCIENCE ADVANCES 2019; 5:eaax2084. [PMID: 31633021 PMCID: PMC6785263 DOI: 10.1126/sciadv.aax2084] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 09/14/2019] [Indexed: 05/15/2023]
Abstract
The habenula, an epithalamic nucleus involved in reward and aversive processing, may contribute to negative reinforcement mechanisms maintaining nicotine use. We used a performance feedback task that differentially activates the striatum and habenula and administered nicotine and varenicline (versus placebos) to overnight-abstinent smokers and nonsmokers to delineate feedback-related functional brain alterations both as a function of smoking trait (smokers versus nonsmokers) and drug administration state (drug versus placebo). Smokers showed less striatal responsivity to positive feedback, an alteration not mitigated by drug administration, but rather correlated with trait-level addiction severity. Conversely, nicotine administration reduced habenula activity following both positive and negative feedback among abstinent smokers, but not nonsmokers, and increased habenula activity among smokers correlated with elevated state-level tobacco cravings. These outcomes highlight a dissociation between neurobiological processes linked with the dependence severity trait and the nicotine withdrawal state. Interventions simultaneously targeting both aspects may improve currently poor cessation outcomes.
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Affiliation(s)
| | - Michael C. Riedel
- Department of Physics, Florida International University, Miami, FL, USA
| | - Ranjita Poudel
- Department of Psychology, Florida International University, Miami, FL, USA
| | - Angela R. Laird
- Department of Physics, Florida International University, Miami, FL, USA
| | - Thomas J. Ross
- Neuroimaging Research Branch, National Institute on Drug Abuse–Intramural Research Program, NIH/DHHS, Baltimore, MD, USA
| | - Betty Jo Salmeron
- Neuroimaging Research Branch, National Institute on Drug Abuse–Intramural Research Program, NIH/DHHS, Baltimore, MD, USA
| | - Elliot A. Stein
- Neuroimaging Research Branch, National Institute on Drug Abuse–Intramural Research Program, NIH/DHHS, Baltimore, MD, USA
| | - Matthew T. Sutherland
- Department of Psychology, Florida International University, Miami, FL, USA
- Corresponding author.
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Correa VL, Flores RJ, Carcoba LM, Arreguin MC, O'Dell LE. Sex differences in cholinergic systems in the interpeduncular nucleus following nicotine exposure and withdrawal. Neuropharmacology 2019; 158:107714. [PMID: 31325431 DOI: 10.1016/j.neuropharm.2019.107714] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 07/01/2019] [Accepted: 07/15/2019] [Indexed: 12/27/2022]
Abstract
The medial habenula-interpeduncular nucleus (MHb-IPN) pathway modulates negative affective states produced by nicotine withdrawal. Sex differences in the contribution of acetylcholine (ACh) systems in this pathway have not been explored. Thus, this study assessed ACh levels and gene expression of α- and β-containing nicotinic acetylcholine receptor (nAChR) subunits in the IPN of female and male rats following nicotine treatment and withdrawal. Rats were prepared with a pump that delivered nicotine for 14 days, and naïve controls received a sham surgery. In Study 1, rats were prepared with a probe in the IPN, and ACh levels were measured following saline and then mecamylamine administration. In Study 2, separate groups of naïve control or nicotine-treated rats received saline or mecamylamine and physical signs and anxiety-like behavior were assessed using elevated plus maze (EPM) procedures. The IPN was then dissected and mRNA levels were assessed using RT-qPCR methods. Nicotine treatment increased ACh levels to a larger extent in females than males. Nicotine withdrawal produced a similar increase in physical signs; however, females displayed greater anxiety-like behavior than males. In females, gene expression of α5 increased following nicotine treatment and withdrawal. In males, α7 increased following nicotine treatment and α2 and α3 increased during nicotine withdrawal. Both females and males displayed an increase in β3 and β4 during nicotine withdrawal. In females, anxiety-like behavior was correlated with α4, α5, and β2 gene expression in the IPN. These results suggest that sex differences in withdrawal are modulated via cholinergic systems in the IPN.
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Affiliation(s)
- Victor L Correa
- Department of Psychology, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX, USA
| | - Rodolfo J Flores
- Department of Psychology, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX, USA
| | - Luis M Carcoba
- Department of Psychology, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX, USA
| | - Montserrat C Arreguin
- Department of Psychology, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX, USA
| | - Laura E O'Dell
- Department of Psychology, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX, USA.
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