3
|
Klawonn AM, Wilhelms DB, Lindström SH, Singh AK, Jaarola M, Wess J, Fritz M, Engblom D. Muscarinic M4 Receptors on Cholinergic and Dopamine D1 Receptor-Expressing Neurons Have Opposing Functionality for Positive Reinforcement and Influence Impulsivity. Front Mol Neurosci 2018; 11:139. [PMID: 29740282 PMCID: PMC5928231 DOI: 10.3389/fnmol.2018.00139] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 04/05/2018] [Indexed: 12/02/2022] Open
Abstract
The neurotransmitter acetylcholine has been implicated in reward learning and drug addiction. However, the roles of the various cholinergic receptor subtypes on different neuron populations remain elusive. Here we study the function of muscarinic M4 receptors (M4Rs) in dopamine D1 receptor (D1R) expressing neurons and cholinergic neurons (expressing choline acetyltransferase; ChAT), during various reward-enforced behaviors and in a “waiting”-impulsivity test. We applied cell-type-specific gene deletions targeting M4Rs in D1RCre or ChATCre mice. Mice lacking M4Rs in D1R-neurons displayed greater cocaine seeking and drug-primed reinstatement than their littermate controls in a Pavlovian conditioned place preference (CPP) paradigm. Furthermore, the M4R-D1RCre mice initiated significantly more premature responses (PRs) in the 5-choice-serial-reaction-time-task (5CSRTT) than their littermate controls, indicating impaired waiting impulse control. In contrast, mice lacking M4Rs in cholinergic neurons did not acquire cocaine Pavlovian conditioning. The M4R-ChATCre mice were also unable to learn positive reinforcement to either natural reward or cocaine in an operant runway paradigm. Immediate early gene (IEG) expression (cFos and FosB) induced by repeated cocaine injections was significantly increased in the forebrain of M4R-D1RCre mice, whereas it remained normal in the M4R-ChATCre mice. Our study illustrates that muscarinic M4Rs on specific neural populations, either cholinergic or D1R-expressing, are pivotal for learning processes related to both natural reward and drugs of abuse, with opposing functionality. Furthermore, we found that neurons expressing both M4Rs and D1Rs are important for signaling impulse control.
Collapse
Affiliation(s)
- Anna M Klawonn
- Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden.,Department of Psychiatry and Behavioural Sciences, Stanford University, Stanford, CA, United States
| | - Daniel B Wilhelms
- Department of Medical and Health Science, Linköping University, Linköping, Sweden.,Department of Emergency Medicine, Linköping University Hospital, Linköping, Sweden
| | - Sarah H Lindström
- Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Anand Kumar Singh
- Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden.,Department of Neuroscience, Baylor College of Medicine, Houston, TX, United States
| | - Maarit Jaarola
- Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Jürgen Wess
- Molecular Signaling Section, National Institute of Health, Bethesda, MD, United States
| | - Michael Fritz
- Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden.,Department of Psychiatry and Behavioural Sciences, Stanford University, Stanford, CA, United States
| | - David Engblom
- Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| |
Collapse
|
4
|
Wang Z, Liang S, Yu S, Xie T, Wang B, Wang J, Li Y, Shan B, Cui C. Distinct Roles of Dopamine Receptors in the Lateral Thalamus in a Rat Model of Decisional Impulsivity. Neurosci Bull 2017; 33:413-422. [PMID: 28585114 DOI: 10.1007/s12264-017-0146-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 04/12/2017] [Indexed: 01/02/2023] Open
Abstract
The thalamus and central dopamine signaling have been shown to play important roles in high-level cognitive processes including impulsivity. However, little is known about the role of dopamine receptors in the thalamus in decisional impulsivity. In the present study, rats were tested using a delay discounting task and divided into three groups: high impulsivity (HI), medium impulsivity (MI), and low impulsivity (LI). Subsequent in vivo voxel-based magnetic resonance imaging revealed that the HI rats displayed a markedly reduced density of gray matter in the lateral thalamus compared with the LI rats. In the MI rats, the dopamine D1 receptor antagonist SCH23390 or the D2 receptor antagonist eticlopride was microinjected into the lateral thalamus. SCH23390 significantly decreased their choice of a large, delayed reward and increased their omission of lever presses. In contrast, eticlopride increased the choice of a large, delayed reward but had no effect on the omissions. Together, our results indicate that the lateral thalamus is involved in decisional impulsivity, and dopamine D1 and D2 receptors in the lateral thalamus have distinct effects on decisional impulsive behaviors in rats. These results provide a new insight into the dopamine signaling in the lateral thalamus in decisional impulsivity.
Collapse
Affiliation(s)
- Zhiyan Wang
- Neuroscience Research Institute, Peking University, Beijing, 100191, China.,Department of Neurobiology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China.,Key Laboratory of Neuroscience, The Ministry of Education and Ministry of Public Health, Beijing, 100191, China
| | - Shengxiang Liang
- Division of Nuclear Technology and Applications, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Shuangshuang Yu
- Neuroscience Research Institute, Peking University, Beijing, 100191, China.,Department of Neurobiology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China.,Key Laboratory of Neuroscience, The Ministry of Education and Ministry of Public Health, Beijing, 100191, China
| | - Tong Xie
- Neuroscience Research Institute, Peking University, Beijing, 100191, China.,Department of Neurobiology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China.,Key Laboratory of Neuroscience, The Ministry of Education and Ministry of Public Health, Beijing, 100191, China
| | - Baicheng Wang
- Neuroscience Research Institute, Peking University, Beijing, 100191, China.,Department of Neurobiology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China.,Key Laboratory of Neuroscience, The Ministry of Education and Ministry of Public Health, Beijing, 100191, China
| | - Junkai Wang
- Neuroscience Research Institute, Peking University, Beijing, 100191, China.,Department of Neurobiology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China.,Key Laboratory of Neuroscience, The Ministry of Education and Ministry of Public Health, Beijing, 100191, China
| | - Yijing Li
- Neuroscience Research Institute, Peking University, Beijing, 100191, China.,Department of Neurobiology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China.,Key Laboratory of Neuroscience, The Ministry of Education and Ministry of Public Health, Beijing, 100191, China
| | - Baoci Shan
- Division of Nuclear Technology and Applications, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Cailian Cui
- Neuroscience Research Institute, Peking University, Beijing, 100191, China. .,Department of Neurobiology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China. .,Key Laboratory of Neuroscience, The Ministry of Education and Ministry of Public Health, Beijing, 100191, China.
| |
Collapse
|
5
|
Fobbs WC, Mizumori SJY. A framework for understanding and advancing intertemporal choice research using rodent models. Neurobiol Learn Mem 2017; 139:89-97. [PMID: 28065715 DOI: 10.1016/j.nlm.2017.01.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 01/02/2017] [Accepted: 01/04/2017] [Indexed: 02/04/2023]
Abstract
Intertemporal choices are common and consequential to private and public life. Thus, there is considerable interest in understanding the neural basis of intertemporal decision making. In this minireview, we briefly describe conceptual and psychological perspectives on intertemporal choice and then provide a comprehensive evaluation of the neural structures and signals that comprise the underlying cortico-limbic-striatal circuit. Even though great advances have been made, our understanding of the neurobiology of intertemporal choice is still in its infancy because of the complex and dynamic nature of this form of decision making. We close by briefly discussing recommendations for the future study of intertemporal choice research.
Collapse
Affiliation(s)
- Wambura C Fobbs
- Neuroscience Program, University of Washington, Seattle, WA 98195, United States
| | - Sheri J Y Mizumori
- Neuroscience Program, University of Washington, Seattle, WA 98195, United States; Psychology Department, University of Washington, Seattle, WA 98195, United States.
| |
Collapse
|