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Rademacher K, Doric Z, Haddad D, Mamaligas A, Liao SC, Creed RB, Kano K, Chatterton Z, Fu Y, Garcia JH, Vance V, Sei Y, Kreitzer A, Halliday GM, Nelson AB, Margolis EB, Nakamura K. Chronic hyperactivation of midbrain dopamine neurons causes preferential dopamine neuron degeneration. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.05.588321. [PMID: 38645054 PMCID: PMC11030348 DOI: 10.1101/2024.04.05.588321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
Parkinson's disease (PD) is characterized by the death of substantia nigra (SNc) dopamine (DA) neurons, but the pathophysiological mechanisms that precede and drive their death remain unknown. The activity of DA neurons is likely altered in PD, but we understand little about if or how chronic changes in activity may contribute to degeneration. To address this question, we developed a chemogenetic (DREADD) mouse model to chronically increase DA neuron activity, and confirmed this increase using ex vivo electrophysiology. Chronic hyperactivation of DA neurons resulted in prolonged increases in locomotor activity during the light cycle and decreases during the dark cycle, consistent with chronic changes in DA release and circadian disturbances. We also observed early, preferential degeneration of SNc projections, recapitulating the PD hallmarks of selective vulnerability of SNc axons and the comparative resilience of ventral tegmental area axons. This was followed by eventual loss of midbrain DA neurons. Continuous DREADD activation resulted in a sustained increase in baseline calcium levels, supporting an important role for increased calcium in the neurodegeneration process. Finally, spatial transcriptomics from DREADD mice examining midbrain DA neurons and striatal targets, and cross-validation with human patient samples, provided insights into potential mechanisms of hyperactivity-induced toxicity and PD. Our results thus reveal the preferential vulnerability of SNc DA neurons to increased neural activity, and support a potential role for increased neural activity in driving degeneration in PD.
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Affiliation(s)
- Katerina Rademacher
- Gladstone Institute for Neurological Disease, Gladstone Institutes, San Francisco, CA
- Graduate Program in Neuroscience, University of California San Francisco, San Francisco , CA
- Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network, Chevy Chase, MD
| | - Zak Doric
- Gladstone Institute for Neurological Disease, Gladstone Institutes, San Francisco, CA
- Graduate Program in Neuroscience, University of California San Francisco, San Francisco , CA
| | - Dominik Haddad
- Gladstone Institute for Neurological Disease, Gladstone Institutes, San Francisco, CA
| | - Aphroditi Mamaligas
- Gladstone Institute for Neurological Disease, Gladstone Institutes, San Francisco, CA
| | - Szu-Chi Liao
- Gladstone Institute for Neurological Disease, Gladstone Institutes, San Francisco, CA
- Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network, Chevy Chase, MD
- Department of Nutritional Sciences & Toxicology, University of California Berkeley, Berkeley, CA
- Endocrinology Graduate Program, University of California Berkeley, Berkeley, CA
| | - Rose B. Creed
- Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network, Chevy Chase, MD
- UCSF Weill Institute for Neurosciences, Department of Neurology, University of California, San Francisco, CA
| | - Kohei Kano
- Gladstone Institute for Neurological Disease, Gladstone Institutes, San Francisco, CA
- Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network, Chevy Chase, MD
| | - Zac Chatterton
- Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network, Chevy Chase, MD
- Brain and Mind Centre, Faculty of Medicine and Health, School of Medical Sciences, University of Sydney, Sydney, Australia
| | - Yuhong Fu
- Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network, Chevy Chase, MD
- Brain and Mind Centre, Faculty of Medicine and Health, School of Medical Sciences, University of Sydney, Sydney, Australia
| | - Joseph H. Garcia
- Gladstone Institute for Neurological Disease, Gladstone Institutes, San Francisco, CA
- School of Medicine, University of California, San Francisco, California, USA
| | - Victoria Vance
- Gladstone Institute for Neurological Disease, Gladstone Institutes, San Francisco, CA
- Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network, Chevy Chase, MD
- College of Science, Northeastern University, Boston, MA
| | - Yoshitaka Sei
- Gladstone Institute for Neurological Disease, Gladstone Institutes, San Francisco, CA
- Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network, Chevy Chase, MD
| | - Anatol Kreitzer
- Gladstone Institute for Neurological Disease, Gladstone Institutes, San Francisco, CA
- Graduate Program in Neuroscience, University of California San Francisco, San Francisco , CA
- UCSF Department of Physiology, University of California San Francisco, CA
| | - Glenda M Halliday
- Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network, Chevy Chase, MD
- Brain and Mind Centre, Faculty of Medicine and Health, School of Medical Sciences, University of Sydney, Sydney, Australia
| | - Alexandra B. Nelson
- Graduate Program in Neuroscience, University of California San Francisco, San Francisco , CA
- Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network, Chevy Chase, MD
- UCSF Weill Institute for Neurosciences, Department of Neurology, University of California, San Francisco, CA
| | - Elyssa B. Margolis
- Graduate Program in Neuroscience, University of California San Francisco, San Francisco , CA
- UCSF Weill Institute for Neurosciences, Department of Neurology, University of California, San Francisco, CA
| | - Ken Nakamura
- Gladstone Institute for Neurological Disease, Gladstone Institutes, San Francisco, CA
- Graduate Program in Neuroscience, University of California San Francisco, San Francisco , CA
- Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network, Chevy Chase, MD
- UCSF Weill Institute for Neurosciences, Department of Neurology, University of California, San Francisco, CA
- Graduate Program in Biomedical Sciences, University of California San Francisco, San Francisco
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2
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Robinson HL, Nicholson KL, Shelton KL, Hamilton PJ, Banks ML. Comparison of three DREADD agonists acting on Gq-DREADDs in the ventral tegmental area to alter locomotor activity in tyrosine hydroxylase:Cre male and female rats. Behav Brain Res 2023; 455:114674. [PMID: 37722510 PMCID: PMC10918529 DOI: 10.1016/j.bbr.2023.114674] [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: 07/12/2023] [Revised: 09/08/2023] [Accepted: 09/15/2023] [Indexed: 09/20/2023]
Abstract
RATIONALE Despite the increasingly pervasive use of chemogenetic tools in preclinical neuroscience research, the in vivo pharmacology of DREADD agonists remains poorly understood. The pharmacological effects of any ligand acting at receptors, engineered or endogenous, are influenced by numerous factors including potency, time course, and receptor selectivity. Thus, rigorous comparison of the potency and time course of available DREADD ligands may provide an empirical foundation for ligand selection. OBJECTIVES Compare the behavioral pharmacology of three different DREADD ligands clozapine-N-oxide (CNO), compound 21 (C21), and deschloroclozapine (DCZ) in a locomotor activity assay in tyrosine hydroxylase:cre recombinase (TH:Cre) male and female rats. METHODS Locomotor activity in nine adult TH:Cre Sprague-Dawley rats (5 female, 4 male) was monitored for two hours following administration of d-amphetamine (vehicle, 0.1-3.2 mg/kg, IP), DCZ (vehicle, 0.32-320 µg/kg, IP), CNO (vehicle, 0.32-10 mg/kg), and C21 (vehicle, 0.1-3.2 mg/kg, IP). Behavioral sessions were conducted twice per week prior to and starting three weeks after bilateral intra-VTA hM3Dq DREADD virus injection. RESULTS d-Amphetamine significantly increased locomotor activity pre- and post-DREADD virus injection. DCZ, CNO, and C21 did not alter locomotor activity pre-DREADD virus injection. There was no significant effect of DCZ, CNO, and C21 on locomotor activity post-DREADD virus injection; however, large individual differences in both behavioral response and receptor expression were observed. CONCLUSIONS Large individual variability was observed in both DREADD agonist behavioral effects and receptor expression. These results suggest further basic research would facilitate the utility of these chemogenetic tools for behavioral neuroscience research.
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Affiliation(s)
- Hannah L Robinson
- Department of Pharmacology and Toxicology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Katherine L Nicholson
- Department of Pharmacology and Toxicology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Keith L Shelton
- Department of Pharmacology and Toxicology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Peter J Hamilton
- Department of Anatomy and Neurobiology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Matthew L Banks
- Department of Pharmacology and Toxicology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA.
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3
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Suri D, Zanni G, Mahadevia D, Chuhma N, Saha R, Spivack S, Pini N, Stevens GS, Ziolkowski-Blake A, Simpson EH, Balsam P, Rayport S, Ansorge MS. Dopamine transporter blockade during adolescence increases adult dopamine function, impulsivity, and aggression. Mol Psychiatry 2023; 28:3512-3523. [PMID: 37532798 PMCID: PMC10618097 DOI: 10.1038/s41380-023-02194-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 07/11/2023] [Accepted: 07/17/2023] [Indexed: 08/04/2023]
Abstract
Sensitive developmental periods shape neural circuits and enable adaptation. However, they also engender vulnerability to factors that can perturb developmental trajectories. An understanding of sensitive period phenomena and mechanisms separate from sensory system development is still lacking, yet critical to understanding disease etiology and risk. The dopamine system is pivotal in controlling and shaping adolescent behaviors, and it undergoes heightened plasticity during that time, such that interference with dopamine signaling can have long-lasting behavioral consequences. Here we sought to gain mechanistic insight into this dopamine-sensitive period and its impact on behavior. In mice, dopamine transporter (DAT) blockade from postnatal (P) day 22 to 41 increases aggression and sensitivity to amphetamine (AMPH) behavioral stimulation in adulthood. Here, we refined this sensitive window to P32-41 and identified increased firing of dopaminergic neurons in vitro and in vivo as a neural correlate to altered adult behavior. Aggression can result from enhanced impulsivity and cognitive dysfunction, and dopamine regulates working memory and motivated behavior. Hence, we assessed these behavioral domains and found that P32-41 DAT blockade increases impulsivity but has no effect on cognition, working memory, or motivation in adulthood. Lastly, using optogenetics to drive dopamine neurons, we find that increased VTA but not SNc dopaminergic activity mimics the increase in impulsive behavior in the Go/NoGo task observed after adolescent DAT blockade. Together our data provide insight into the developmental origins of aggression and impulsivity that may ultimately improve diagnosis, prevention, and treatment strategies for related neuropsychiatric disorders.
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Affiliation(s)
- Deepika Suri
- Department of Psychiatry, Columbia University, New York, NY, 10032, USA
- Department of Developmental Neuroscience, New York State Psychiatric Institute, New York, NY, 10032, USA
| | - Giulia Zanni
- Department of Psychiatry, Columbia University, New York, NY, 10032, USA
- Department of Developmental Neuroscience, New York State Psychiatric Institute, New York, NY, 10032, USA
| | - Darshini Mahadevia
- Department of Psychiatry, Columbia University, New York, NY, 10032, USA
- Department of Developmental Neuroscience, New York State Psychiatric Institute, New York, NY, 10032, USA
| | - Nao Chuhma
- Department of Psychiatry, Columbia University, New York, NY, 10032, USA
- Department of Molecular Therapeutics, New York State Psychiatric Institute, New York, NY, 10032, USA
| | - Rinki Saha
- Department of Psychiatry, Columbia University, New York, NY, 10032, USA
- Department of Developmental Neuroscience, New York State Psychiatric Institute, New York, NY, 10032, USA
| | - Stephen Spivack
- Department of Psychiatry, Columbia University, New York, NY, 10032, USA
- Department of Developmental Neuroscience, New York State Psychiatric Institute, New York, NY, 10032, USA
| | - Nicolò Pini
- Department of Psychiatry, Columbia University, New York, NY, 10032, USA
- Department of Developmental Neuroscience, New York State Psychiatric Institute, New York, NY, 10032, USA
| | - Gregory S Stevens
- Department of Psychiatry, Columbia University, New York, NY, 10032, USA
- Department of Developmental Neuroscience, New York State Psychiatric Institute, New York, NY, 10032, USA
| | - Annette Ziolkowski-Blake
- Department of Developmental Neuroscience, New York State Psychiatric Institute, New York, NY, 10032, USA
| | - Eleanor H Simpson
- Department of Psychiatry, Columbia University, New York, NY, 10032, USA
- Department of Developmental Neuroscience, New York State Psychiatric Institute, New York, NY, 10032, USA
| | - Peter Balsam
- Department of Psychiatry, Columbia University, New York, NY, 10032, USA
- Department of Developmental Neuroscience, New York State Psychiatric Institute, New York, NY, 10032, USA
- Department of Neuroscience and Behavior, Barnard College, Columbia University, New York, NY, 10032, USA
| | - Stephen Rayport
- Department of Psychiatry, Columbia University, New York, NY, 10032, USA
- Department of Molecular Therapeutics, New York State Psychiatric Institute, New York, NY, 10032, USA
| | - Mark S Ansorge
- Department of Psychiatry, Columbia University, New York, NY, 10032, USA.
- Department of Developmental Neuroscience, New York State Psychiatric Institute, New York, NY, 10032, USA.
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Ye H, Cao T, Shu Q, Chen Y, Lu Y, He Z, Li Z. Blockade of orexin receptor 1 attenuates morphine protracted abstinence-induced anxiety-like behaviors in male mice. Psychoneuroendocrinology 2023; 151:106080. [PMID: 36931057 DOI: 10.1016/j.psyneuen.2023.106080] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 02/18/2023] [Accepted: 03/07/2023] [Indexed: 03/19/2023]
Abstract
One negative emotional state from morphine protracted abstinence is anxiety which can drive craving and relapse risk in opioid addicts. Although the orexinergic system has been reported to be important in mediating emotion processing and addiction, the role of orexinergic system in anxiety from drug protracted abstinence remains elusive. In this study, by using behavioral test, western blot, electrophysiology and virus-mediated regulation of orexin receptor 1 (OX1R), we found that: (1) Intraperitoneal and intra-VTA administration of a selective OX1R antagonist SB334867 alleviated anxiety-like behaviors in open field test (OFT) but not in elevated plus maze test (EPM) in morphine protracted abstinent male mice. (2) OX1R expression in the VTA was upregulated by morphine withdrawal. (3) Virus-mediated knockdown of OX1R in the VTA prevented morphine abstinence-induced anxiety-like behaviors and virus-mediated overexpression of OX1R in the VTA was sufficient to produce anxiety-like behaviors in male mice. (4) The VTA neuronal activity was increased significantly induced by morphine protracted abstinence, which was mediated by OX1R. (5) OX1R was widely distributed in the neuronal soma and processes of dopaminergic and non-dopaminergic neurons in the VTA. The findings revealed that the OX1R mediates morphine abstinence-induced anxiety-like behaviors and the VTA plays a critical role in this effect.
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Affiliation(s)
- Hongming Ye
- College of Basic Medical Science, China Three Gorges University, Yichang, China; Third-grade Pharmacological Laboratory on Traditional Chinese Medicine, State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang, China
| | - Tong Cao
- College of Basic Medical Science, China Three Gorges University, Yichang, China; Third-grade Pharmacological Laboratory on Traditional Chinese Medicine, State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang, China
| | - Qigang Shu
- College of Basic Medical Science, China Three Gorges University, Yichang, China; Third-grade Pharmacological Laboratory on Traditional Chinese Medicine, State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang, China
| | - Yue Chen
- College of Basic Medical Science, China Three Gorges University, Yichang, China; Third-grade Pharmacological Laboratory on Traditional Chinese Medicine, State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang, China
| | - Yongli Lu
- College of Basic Medical Science, China Three Gorges University, Yichang, China; Third-grade Pharmacological Laboratory on Traditional Chinese Medicine, State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang, China
| | - Zhi He
- College of Basic Medical Science, China Three Gorges University, Yichang, China; Third-grade Pharmacological Laboratory on Traditional Chinese Medicine, State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang, China.
| | - Zicheng Li
- College of Basic Medical Science, China Three Gorges University, Yichang, China; Third-grade Pharmacological Laboratory on Traditional Chinese Medicine, State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang, China.
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5
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Wang J, Wang LJ, Wang LM, Liu ZH, Ren HL, Chen XM, Wang JM, Cai HM, Wei LP, Tian HH. A novel aged mouse model of recurrent intracerebral hemorrhage in the bilateral striatum. Neural Regen Res 2023; 18:344-349. [PMID: 35900428 PMCID: PMC9396476 DOI: 10.4103/1673-5374.346459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
The current animal models of stroke primarily model a single intracerebral hemorrhage (ICH) attack, and there is a lack of a reliable model of recurrent ICH. In this study, we established 16-month-old C57BL/6 male mouse models of ICH by injecting collagenase VII-S into the left striatum. Twenty-one days later, we injected collagenase VII-S into the right striatum to simulate recurrent ICH. Our results showed that mice subjected to bilateral striatal hemorrhage had poorer neurological function at the early stage of hemorrhage, delayed recovery in locomotor function, motor coordination, and movement speed, and more obvious emotional and cognitive dysfunction than mice subjected to unilateral striatal hemorrhage. These findings indicate that mouse models of bilateral striatal hemorrhage can well simulate clinically common recurrent ICH. These models should be used as a novel tool for investigating the pathogenesis and treatment targets of recurrent ICH.
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Requie LM, Gómez-Gonzalo M, Speggiorin M, Managò F, Melone M, Congiu M, Chiavegato A, Lia A, Zonta M, Losi G, Henriques VJ, Pugliese A, Pacinelli G, Marsicano G, Papaleo F, Muntoni AL, Conti F, Carmignoto G. Astrocytes mediate long-lasting synaptic regulation of ventral tegmental area dopamine neurons. Nat Neurosci 2022; 25:1639-1650. [PMID: 36396976 DOI: 10.1038/s41593-022-01193-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 10/03/2022] [Indexed: 11/18/2022]
Abstract
The plasticity of glutamatergic transmission in the ventral tegmental area (VTA) represents a fundamental mechanism in the modulation of dopamine neuron burst firing and phasic dopamine release at target regions. These processes encode basic behavioral responses, including locomotor activity, learning and motivated behaviors. Here we describe a hitherto unidentified mechanism of long-term synaptic plasticity in mouse VTA. We found that the burst firing in individual dopamine neurons induces a long-lasting potentiation of excitatory synapses on adjacent dopamine neurons that crucially depends on Ca2+ elevations in astrocytes, mediated by endocannabinoid CB1 and dopamine D2 receptors co-localized at the same astrocytic process, and activation of pre-synaptic metabotropic glutamate receptors. Consistent with these findings, selective in vivo activation of astrocytes increases the burst firing of dopamine neurons in the VTA and induces locomotor hyperactivity. Astrocytes play, therefore, a key role in the modulation of VTA dopamine neuron functional activity.
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Affiliation(s)
- Linda Maria Requie
- Neuroscience Institute, Section of Padova, National Research Council (CNR) and Department of Biomedical Sciences, Università degli Studi di Padova, Padova, Italy
| | - Marta Gómez-Gonzalo
- Neuroscience Institute, Section of Padova, National Research Council (CNR) and Department of Biomedical Sciences, Università degli Studi di Padova, Padova, Italy.
| | - Michele Speggiorin
- Neuroscience Institute, Section of Padova, National Research Council (CNR) and Department of Biomedical Sciences, Università degli Studi di Padova, Padova, Italy
| | - Francesca Managò
- Genetics of Cognition Laboratory, Neuroscience Area, Istituto Italiano di Tecnologia (IIT), Genova, Italy
| | - Marcello Melone
- Department of Experimental and Clinical Medicine, Section of Neuroscience & Cell Biology, Università Politecnica delle Marche, and Center for Neurobiology of Aging, Ancona, Italy
| | - Mauro Congiu
- Department of Biomedical Sciences, Division of Neuroscience and Clinical Pharmacology, Università degli Studi di Cagliari, Cagliari, Italy.,Neuroscience Institute, Section of Cagliari, National Research Council (CNR), Cagliari, Italy
| | - Angela Chiavegato
- Neuroscience Institute, Section of Padova, National Research Council (CNR) and Department of Biomedical Sciences, Università degli Studi di Padova, Padova, Italy
| | - Annamaria Lia
- Neuroscience Institute, Section of Padova, National Research Council (CNR) and Department of Biomedical Sciences, Università degli Studi di Padova, Padova, Italy
| | - Micaela Zonta
- Neuroscience Institute, Section of Padova, National Research Council (CNR) and Department of Biomedical Sciences, Università degli Studi di Padova, Padova, Italy
| | - Gabriele Losi
- Neuroscience Institute, Section of Padova, National Research Council (CNR) and Department of Biomedical Sciences, Università degli Studi di Padova, Padova, Italy.,Nanoscienze Institute, National Research Council (CNR), Modena, Italy
| | - Vanessa Jorge Henriques
- Neuroscience Institute, Section of Padova, National Research Council (CNR) and Department of Biomedical Sciences, Università degli Studi di Padova, Padova, Italy
| | - Arianna Pugliese
- Department of Experimental and Clinical Medicine, Section of Neuroscience & Cell Biology, Università Politecnica delle Marche, and Center for Neurobiology of Aging, Ancona, Italy
| | - Giada Pacinelli
- Genetics of Cognition Laboratory, Neuroscience Area, Istituto Italiano di Tecnologia (IIT), Genova, Italy.,Padova Neuroscience Center (PNC), University of Padova, Padova, Italy
| | - Giovanni Marsicano
- University of Bordeaux and Interdisciplinary Institute for Neuroscience (CNRS), Bordeaux, France
| | - Francesco Papaleo
- Genetics of Cognition Laboratory, Neuroscience Area, Istituto Italiano di Tecnologia (IIT), Genova, Italy
| | - Anna Lisa Muntoni
- Neuroscience Institute, Section of Cagliari, National Research Council (CNR), Cagliari, Italy
| | - Fiorenzo Conti
- Department of Experimental and Clinical Medicine, Section of Neuroscience & Cell Biology, Università Politecnica delle Marche, and Center for Neurobiology of Aging, Ancona, Italy
| | - Giorgio Carmignoto
- Neuroscience Institute, Section of Padova, National Research Council (CNR) and Department of Biomedical Sciences, Università degli Studi di Padova, Padova, Italy.
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Aquaporin-4 deletion attenuates opioid-induced addictive behaviours associated with dopamine levels in nucleus accumbens. Neuropharmacology 2022; 208:108986. [DOI: 10.1016/j.neuropharm.2022.108986] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 01/12/2022] [Accepted: 02/03/2022] [Indexed: 12/21/2022]
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8
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Gordon-Fennell A, Stuber GD. Illuminating subcortical GABAergic and glutamatergic circuits for reward and aversion. Neuropharmacology 2021; 198:108725. [PMID: 34375625 DOI: 10.1016/j.neuropharm.2021.108725] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 07/13/2021] [Accepted: 07/15/2021] [Indexed: 02/07/2023]
Abstract
Reinforcement, reward, and aversion are fundamental processes for guiding appropriate behaviors. Longstanding theories have pointed to dopaminergic neurons of the ventral tegmental area (VTA) and the limbic systems' descending pathways as crucial systems for modulating these behaviors. The application of optogenetic techniques in neurotransmitter- and projection-specific circuits has supported and enhanced many preexisting theories but has also revealed many unexpected results. Here, we review the past decade of optogenetic experiments to study the neural circuitry of reinforcement and reward/aversion with a focus on the mesolimbic dopamine system and brain areas along the medial forebrain bundle (MFB). The cumulation of these studies to date has revealed generalizable findings across molecularly defined cell types in areas of the basal forebrain and anterior hypothalamus. Optogenetic stimulation of GABAergic neurons in these brain regions drives reward and can support positive reinforcement and optogenetic stimulation of glutamatergic neurons in these regions drives aversion. We also review studies of the activity dynamics of neurotransmitter defined populations in these areas which have revealed varied response patterns associated with motivated behaviors.
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Affiliation(s)
- Adam Gordon-Fennell
- Center for the Neurobiology of Addiction, Pain, and Emotion, Department of Anesthesiology and Pain Medicine, Department of Pharmacology, University of Washington, 98195, Seattle, WA, USA
| | - Garret D Stuber
- Center for the Neurobiology of Addiction, Pain, and Emotion, Department of Anesthesiology and Pain Medicine, Department of Pharmacology, University of Washington, 98195, Seattle, WA, USA.
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Bayasgalan T, Stupniki S, Kovács A, Csemer A, Szentesi P, Pocsai K, Dionisio L, Spitzmaul G, Pál B. Alteration of Mesopontine Cholinergic Function by the Lack of KCNQ4 Subunit. Front Cell Neurosci 2021; 15:707789. [PMID: 34381336 PMCID: PMC8352570 DOI: 10.3389/fncel.2021.707789] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 06/28/2021] [Indexed: 11/16/2022] Open
Abstract
The pedunculopontine nucleus (PPN), a structure known as a cholinergic member of the reticular activating system (RAS), is source and target of cholinergic neuromodulation and contributes to the regulation of the sleep–wakefulness cycle. The M-current is a voltage-gated potassium current modulated mainly by cholinergic signaling. KCNQ subunits ensemble into ion channels responsible for the M-current. In the central nervous system, KCNQ4 expression is restricted to certain brainstem structures such as the RAS nuclei. Here, we investigated the presence and functional significance of KCNQ4 in the PPN by behavioral studies and the gene and protein expressions and slice electrophysiology using a mouse model lacking KCNQ4 expression. We found that this mouse has alterations in the adaptation to changes in light–darkness cycles, representing the potential role of KCNQ4 in the regulation of the sleep–wakefulness cycle. As cholinergic neurons from the PPN participate in the regulation of this cycle, we investigated whether the cholinergic PPN might also possess functional KCNQ4 subunits. Although the M-current is an electrophysiological hallmark of cholinergic neurons, only a subpopulation of them had KCNQ4-dependent M-current. Interestingly, the absence of the KCNQ4 subunit altered the expression patterns of the other KCNQ subunits in the PPN. We also determined that, in wild-type animals, the cholinergic inputs of the PPN modulated the M-current, and these in turn can modulate the level of synchronization between neighboring PPN neurons. Taken together, the KCNQ4 subunit is present in a subpopulation of PPN cholinergic neurons, and it may contribute to the regulation of the sleep–wakefulness cycle.
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Affiliation(s)
- T Bayasgalan
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - S Stupniki
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional Del Sur (UNS), Bahía Blanca, Argentina.,Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, Bahía Blanca, Argentina
| | - A Kovács
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - A Csemer
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - P Szentesi
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - K Pocsai
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - L Dionisio
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional Del Sur (UNS), Bahía Blanca, Argentina.,Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, Bahía Blanca, Argentina
| | - G Spitzmaul
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional Del Sur (UNS), Bahía Blanca, Argentina.,Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, Bahía Blanca, Argentina
| | - B Pál
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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10
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Humburg BA, Jordan CJ, Zhang H, Shen H, Han X, Bi G, Hempel B, Galaj E, Baumann MH, Xi Z. Optogenetic brain-stimulation reward: A new procedure to re-evaluate the rewarding versus aversive effects of cannabinoids in dopamine transporter-Cre mice. Addict Biol 2021; 26:e13005. [PMID: 33538103 DOI: 10.1111/adb.13005] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 12/04/2020] [Accepted: 01/09/2021] [Indexed: 12/12/2022]
Abstract
Despite extensive research, the rewarding effects of cannabinoids are still debated. Here, we used a newly established animal procedure called optogenetic intracranial self-stimulation (ICSS) (oICSS) to re-examine the abuse potential of cannabinoids in mice. A specific adeno-associated viral vector carrying a channelrhodopsin gene was microinjected into the ventral tegmental area (VTA) to express light-sensitive channelrhodopsin in dopamine (DA) neurons of transgenic dopamine transporter (DAT)-Cre mice. Optogenetic stimulation of VTA DA neurons was highly reinforcing and produced a classical "sigmoidal"-shaped stimulation-response curve dependent upon the laser pulse frequency. Systemic administration of cocaine dose-dependently enhanced oICSS and shifted stimulation-response curves upward, in a way similar to previously observed effects of cocaine on electrical ICSS. In contrast, Δ9 -tetrahydrocannabinol (Δ9 -THC), but not cannabidiol, dose-dependently decreased oICSS responding and shifted oICSS curves downward. WIN55,212-2 and ACEA, two synthetic cannabinoids often used in laboratory settings, also produced dose-dependent reductions in oICSS. We then examined several new synthetic cannabinoids, which are used recreationally. XLR-11 produced a cocaine-like increase, AM-2201 produced a Δ9 -THC-like reduction, while 5F-AMB had no effect on oICSS responding. Immunohistochemistry and RNAscope in situ hybridization assays indicated that CB1 Rs are expressed mainly in VTA GABA and glutamate neurons, while CB2 Rs are expressed mainly in VTA DA neurons. Together, these findings suggest that most cannabinoids are not reward enhancing, but rather reward attenuating or aversive in mice. Activation of CB1 R and/or CB2 R in different populations of neurons in the brain may underlie the observed actions.
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Affiliation(s)
- Bree A. Humburg
- Addiction Biology Unit, Molecular Targets and Medications Discovery, Intramural Research Program National Institute on Drug Abuse Baltimore Maryland USA
| | - Chloe J. Jordan
- Addiction Biology Unit, Molecular Targets and Medications Discovery, Intramural Research Program National Institute on Drug Abuse Baltimore Maryland USA
| | - Hai‐Ying Zhang
- Addiction Biology Unit, Molecular Targets and Medications Discovery, Intramural Research Program National Institute on Drug Abuse Baltimore Maryland USA
| | - Hui Shen
- Synaptic Plasticity Section, Intramural Research Program National Institute on Drug Abuse Baltimore Maryland USA
| | - Xiao Han
- Addiction Biology Unit, Molecular Targets and Medications Discovery, Intramural Research Program National Institute on Drug Abuse Baltimore Maryland USA
| | - Guo‐Hua Bi
- Addiction Biology Unit, Molecular Targets and Medications Discovery, Intramural Research Program National Institute on Drug Abuse Baltimore Maryland USA
| | - Briana Hempel
- Addiction Biology Unit, Molecular Targets and Medications Discovery, Intramural Research Program National Institute on Drug Abuse Baltimore Maryland USA
| | - Ewa Galaj
- Addiction Biology Unit, Molecular Targets and Medications Discovery, Intramural Research Program National Institute on Drug Abuse Baltimore Maryland USA
| | - Michael H. Baumann
- Designer Drug Research Unit, Intramural Research Program National Institute on Drug Abuse Baltimore Maryland USA
| | - Zheng‐Xiong Xi
- Addiction Biology Unit, Molecular Targets and Medications Discovery, Intramural Research Program National Institute on Drug Abuse Baltimore Maryland USA
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11
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Chen APF, Chen L, Kim TA, Xiong Q. Integrating the Roles of Midbrain Dopamine Circuits in Behavior and Neuropsychiatric Disease. Biomedicines 2021; 9:biomedicines9060647. [PMID: 34200134 PMCID: PMC8228225 DOI: 10.3390/biomedicines9060647] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/01/2021] [Accepted: 06/03/2021] [Indexed: 01/11/2023] Open
Abstract
Dopamine (DA) is a behaviorally and clinically diverse neuromodulator that controls CNS function. DA plays major roles in many behaviors including locomotion, learning, habit formation, perception, and memory processing. Reflecting this, DA dysregulation produces a wide variety of cognitive symptoms seen in neuropsychiatric diseases such as Parkinson’s, Schizophrenia, addiction, and Alzheimer’s disease. Here, we review recent advances in the DA systems neuroscience field and explore the advancing hypothesis that DA’s behavioral function is linked to disease deficits in a neural circuit-dependent manner. We survey different brain areas including the basal ganglia’s dorsomedial/dorsolateral striatum, the ventral striatum, the auditory striatum, and the hippocampus in rodent models. Each of these regions have different reported functions and, correspondingly, DA’s reflecting role in each of these regions also has support for being different. We then focus on DA dysregulation states in Parkinson’s disease, addiction, and Alzheimer’s Disease, emphasizing how these afflictions are linked to different DA pathways. We draw upon ideas such as selective vulnerability and region-dependent physiology. These bodies of work suggest that different channels of DA may be dysregulated in different sets of disease. While these are great advances, the fine and definitive segregation of such pathways in behavior and disease remains to be seen. Future studies will be required to define DA’s necessity and contribution to the functional plasticity of different striatal regions.
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Affiliation(s)
- Allen PF Chen
- Department of Neurobiology and Behavior, Renaissance School of Medicine at Stony Brook University, Stony Brook, NY 11794, USA; (A.P.C.); (L.C.); (T.A.K.)
- Medical Scientist Training Program, Renaissance School of Medicine at Stony Brook University, Stony Brook, NY 11794, USA
| | - Lu Chen
- Department of Neurobiology and Behavior, Renaissance School of Medicine at Stony Brook University, Stony Brook, NY 11794, USA; (A.P.C.); (L.C.); (T.A.K.)
| | - Thomas A. Kim
- Department of Neurobiology and Behavior, Renaissance School of Medicine at Stony Brook University, Stony Brook, NY 11794, USA; (A.P.C.); (L.C.); (T.A.K.)
- Medical Scientist Training Program, Renaissance School of Medicine at Stony Brook University, Stony Brook, NY 11794, USA
| | - Qiaojie Xiong
- Department of Neurobiology and Behavior, Renaissance School of Medicine at Stony Brook University, Stony Brook, NY 11794, USA; (A.P.C.); (L.C.); (T.A.K.)
- Correspondence:
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12
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Zhang J, He ZX, Qu YS, Li LF, Wang LM, Yuan W, Hou WJ, Zhu YQ, Cai WQ, Zhang XN, Guo QQ, An SC, Jia R, Tai FD. Different baseline physical activity predicts susceptibility and resilience to chronic social defeat stress in mice: Involvement of dopamine neurons. Eur Neuropsychopharmacol 2021; 45:15-28. [PMID: 33730683 DOI: 10.1016/j.euroneuro.2021.02.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 02/10/2021] [Accepted: 02/15/2021] [Indexed: 02/07/2023]
Abstract
Physical inactivity, the fourth leading mortality risk factor worldwide, is associated with chronic mental illness. Identifying the mechanisms underlying different levels of baseline physical activity and the effects of these levels on the susceptibility to stress is very important. However, whether different levels of baseline physical activity influence the susceptibility and resilience to chronic social defeat stress (CSDS), and the underlying mechanisms in the brain remain unclear. The present study segregated wild-type mice into low baseline physical activity (LBPA) and high baseline physical activity (HBPA) groups based on short term voluntary wheel running (VWR). LBPA mice showed obvious susceptibility to CSDS, while HBPA mice were resilient to CSDS. In addition, the expression of tyrosine hydroxylase (TH) in the ventral tegmental area (VTA) was lower in LBPA mice than in HBPA mice. Furthermore, activation of TH neurons in the VTA of LBPA mice by chemogenetic methods increased the levels of VWR and resilience to CSDS. In contrast, inhibiting TH neurons in the VTA of HBPA mice lowered the levels of VWR and increased their susceptibility to CSDS. Thus, this study suggests that different baseline physical activities might be mediated by the dopamine system. This system also affects the susceptibility and resilience to CSDS, possibly via alteration of the baseline physical activity. This perspective on the neural control and impacts on VWR may aid the development of strategies to motivate and sustain voluntary physical activity. Furthermore, this can maximize the impacts of regular physical activity toward stress-reduction and health promotion.
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Affiliation(s)
- Jing Zhang
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China; School of Physical Education & Health, Nanning Normal University, Nanning 530100, China
| | - Zhi-Xiong He
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Yi-Shan Qu
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Lai-Fu Li
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Li-Min Wang
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Wei Yuan
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Wen-Juan Hou
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Ying-Qi Zhu
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Wen-Qi Cai
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Xue-Ni Zhang
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Qian-Qian Guo
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Shu-Cheng An
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Rui Jia
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China; Cognition Neuroscience and Learning Division, Key Laboratory of Modern Teaching Technology, Ministry of Education, Shaanxi Normal University, Xi'an 710062, China.
| | - Fa-Dao Tai
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China; Cognition Neuroscience and Learning Division, Key Laboratory of Modern Teaching Technology, Ministry of Education, Shaanxi Normal University, Xi'an 710062, China.
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13
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Impact of Acute and Persistent Excitation of Prelimbic Pyramidal Neurons on Motor Activity and Trace Fear Learning. J Neurosci 2021; 41:960-971. [PMID: 33402420 DOI: 10.1523/jneurosci.2606-20.2020] [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: 10/08/2020] [Revised: 12/11/2020] [Accepted: 12/16/2020] [Indexed: 11/21/2022] Open
Abstract
Drug-induced neuroadaptations in the mPFC have been implicated in addictive behaviors. Repeated cocaine exposure has been shown to increase pyramidal neuron excitability in the prelimbic (PL) region of the mouse mPFC, an adaptation attributable to a suppression of G protein-gated inwardly rectifying K+ (GIRK) channel activity. After establishing that this neuroadaptation is not seen in adjacent GABA neurons, we used viral GIRK channel ablation and complementary chemogenetic approaches to selectively enhance PL pyramidal neuron excitability in adult mice, to evaluate the impact of this form of plasticity on PL-dependent behaviors. GIRK channel ablation decreased somatodendritic GABAB receptor-dependent signaling and rheobase in PL pyramidal neurons. This manipulation also enhanced the motor-stimulatory effect of cocaine but did not impact baseline activity or trace fear learning. In contrast, selective chemogenetic excitation of PL pyramidal neurons, or chemogenetic inhibition of PL GABA neurons, increased baseline and cocaine-induced activity and disrupted trace fear learning. These effects were mirrored in male mice by selective excitation of PL pyramidal neurons projecting to the VTA, but not NAc or BLA. Collectively, these data show that manipulations enhancing the excitability of PL pyramidal neurons, and specifically those projecting to the VTA, recapitulate behavioral hallmarks of repeated cocaine exposure in mice.SIGNIFICANCE STATEMENT Prolonged exposure to drugs of abuse triggers neuroadaptations that promote core features of addiction. Understanding these neuroadaptations and their implications may suggest interventions capable of preventing or treating addiction. While previous work showed that repeated cocaine exposure increased the excitability of pyramidal neurons in the prelimbic cortex (PL), the behavioral implications of this neuroadaptation remained unclear. Here, we used neuron-specific manipulations to evaluate the impact of increased PL pyramidal neuron excitability on PL-dependent behaviors. Acute or persistent excitation of PL pyramidal neurons potentiated cocaine-induced motor activity and disrupted trace fear conditioning, effects replicated by selective excitation of the PL projection to the VTA. Our work suggests that hyperexcitability of this projection drives key behavioral hallmarks of addiction.
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