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Rivera A, Suárez-Boomgaard D, Miguelez C, Valderrama-Carvajal A, Baufreton J, Shumilov K, Taupignon A, Gago B, Real MÁ. Dopamine D 4 Receptor Is a Regulator of Morphine-Induced Plasticity in the Rat Dorsal Striatum. Cells 2021; 11:31. [PMID: 35011592 PMCID: PMC8750869 DOI: 10.3390/cells11010031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 12/16/2021] [Accepted: 12/21/2021] [Indexed: 02/06/2023] Open
Abstract
Long-term exposition to morphine elicits structural and synaptic plasticity in reward-related regions of the brain, playing a critical role in addiction. However, morphine-induced neuroadaptations in the dorsal striatum have been poorly studied despite its key function in drug-related habit learning. Here, we show that prolonged treatment with morphine triggered the retraction of the dendritic arbor and the loss of dendritic spines in the dorsal striatal projection neurons (MSNs). In an attempt to extend previous findings, we also explored whether the dopamine D4 receptor (D4R) could modulate striatal morphine-induced plasticity. The combined treatment of morphine with the D4R agonist PD168,077 produced an expansion of the MSNs dendritic arbors and restored dendritic spine density. At the electrophysiological level, PD168,077 in combination with morphine altered the electrical properties of the MSNs and decreased their excitability. Finally, results from the sustantia nigra showed that PD168,077 counteracted morphine-induced upregulation of μ opioid receptors (MOR) in striatonigral projections and downregulation of G protein-gated inward rectifier K+ channels (GIRK1 and GIRK2) in dopaminergic cells. The present results highlight the key function of D4R modulating morphine-induced plasticity in the dorsal striatum. Thus, D4R could represent a valuable pharmacological target for the safety use of morphine in pain management.
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Affiliation(s)
- Alicia Rivera
- Facultad de Ciencias, Instituto de Investigación Biomédica, Universidad de Málaga, 29071 Málaga, Spain; (D.S.-B.); (A.V.-C.); (K.S.); (M.Á.R.)
| | - Diana Suárez-Boomgaard
- Facultad de Ciencias, Instituto de Investigación Biomédica, Universidad de Málaga, 29071 Málaga, Spain; (D.S.-B.); (A.V.-C.); (K.S.); (M.Á.R.)
| | - Cristina Miguelez
- Department of Pharmacology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain
| | - Alejandra Valderrama-Carvajal
- Facultad de Ciencias, Instituto de Investigación Biomédica, Universidad de Málaga, 29071 Málaga, Spain; (D.S.-B.); (A.V.-C.); (K.S.); (M.Á.R.)
| | - Jérôme Baufreton
- Institut des Maladies Neurodegeneratives, Université de Bordeaux, UMR 5293, 33000 Bordeaux, France; (J.B.); (A.T.)
- Institut des Maladies Neurodegeneratives, CNRS, UMR 5293, 33000 Bordeaux, France
| | - Kirill Shumilov
- Facultad de Ciencias, Instituto de Investigación Biomédica, Universidad de Málaga, 29071 Málaga, Spain; (D.S.-B.); (A.V.-C.); (K.S.); (M.Á.R.)
- School of Medicine, Washington University in St. Louis, St. Louis, MO 63110, USA
| | - Anne Taupignon
- Institut des Maladies Neurodegeneratives, Université de Bordeaux, UMR 5293, 33000 Bordeaux, France; (J.B.); (A.T.)
- Institut des Maladies Neurodegeneratives, CNRS, UMR 5293, 33000 Bordeaux, France
| | - Belén Gago
- Facultad de Medicina, Instituto de Investigación Biomédica, Universidad de Málaga, 29071 Málaga, Spain;
| | - M. Ángeles Real
- Facultad de Ciencias, Instituto de Investigación Biomédica, Universidad de Málaga, 29071 Málaga, Spain; (D.S.-B.); (A.V.-C.); (K.S.); (M.Á.R.)
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Chai J, Ruan X, Huang J. A Possible Explanation for the Generation of Habit in Navigation: a Striatal Behavioral Learning Model. Cognit Comput 2021. [DOI: 10.1007/s12559-021-09950-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Lerner TN. Interfacing behavioral and neural circuit models for habit formation. J Neurosci Res 2020; 98:1031-1045. [PMID: 31916623 DOI: 10.1002/jnr.24581] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 12/15/2019] [Accepted: 12/18/2019] [Indexed: 12/26/2022]
Abstract
Habits are an important mechanism by which organisms can automate the control of behavior to alleviate cognitive demand. However, transitions to habitual control are risky because they lead to inflexible responding in the face of change. The question of how the brain controls transitions into habit is thus an intriguing one. How do we regulate when our repeated actions become automated? When is it advantageous or disadvantageous to release actions from cognitive control? Decades of research have identified a variety of methods for eliciting habitual responding in animal models. Progress has also been made to understand which brain areas and neural circuits control transitions into habit. Here, I discuss existing research on behavioral and neural circuit models for habit formation (with an emphasis on striatal circuits), and discuss strategies for combining information from different paradigms and levels of analysis to prompt further progress in the field.
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Affiliation(s)
- Talia N Lerner
- Department of Physiology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
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Nadel JA, Pawelko SS, Copes-Finke D, Neidhart M, Howard CD. Lesion of striatal patches disrupts habitual behaviors and increases behavioral variability. PLoS One 2020; 15:e0224715. [PMID: 31914121 PMCID: PMC6948820 DOI: 10.1371/journal.pone.0224715] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 12/21/2019] [Indexed: 12/14/2022] Open
Abstract
Habits are automated behaviors that are insensitive to changes in behavioral outcomes. Habitual responding is thought to be mediated by the striatum, with medial striatum guiding goal-directed action and lateral striatum promoting habits. However, interspersed throughout the striatum are neurochemically differing subcompartments known as patches, which are characterized by distinct molecular profiles relative to the surrounding matrix tissue. These structures have been thoroughly characterized neurochemically and anatomically, but little is known regarding their function. Patches have been shown to be selectively activated during inflexible motor stereotypies elicited by stimulants, suggesting that patches may subserve habitual behaviors. To explore this possibility, we utilized transgenic mice (Sepw1 NP67) preferentially expressing Cre recombinase in striatal patch neurons to target these neurons for ablation with a virus driving Cre-dependent expression of caspase 3. Mice were then trained to press a lever for sucrose rewards on a variable interval schedule to elicit habitual responding. Mice were not impaired on the acquisition of this task, but lesioning striatal patches disrupted behavioral stability across training, and lesioned mice utilized a more goal-directed behavioral strategy during training. Similarly, when mice were forced to omit responses to receive sucrose rewards, habitual responding was impaired in lesioned mice. To rule out effects of lesion on motor behaviors, mice were then tested for impairments in motor learning on a rotarod and locomotion in an open field. We found that patch lesions partially impaired initial performance on the rotarod without modifying locomotor behaviors in open field. This work indicates that patches promote behavioral stability and habitual responding, adding to a growing literature implicating striatal patches in stimulus-response behaviors.
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Affiliation(s)
- Jacob A. Nadel
- Neuroscience Department, Oberlin College, Oberlin, OH, United States of America
- Laboratory for Integrative Neuroscience, National Institute on Alcohol Abuse and Alcoholism, US National Institutes of Health, Rockville, Maryland, United States of America
| | - Sean S. Pawelko
- Neuroscience Department, Oberlin College, Oberlin, OH, United States of America
| | - Della Copes-Finke
- Neuroscience Department, Oberlin College, Oberlin, OH, United States of America
| | - Maya Neidhart
- Neuroscience Department, Oberlin College, Oberlin, OH, United States of America
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Borroto-Escuela DO, Fuxe K. Adenosine heteroreceptor complexes in the basal ganglia are implicated in Parkinson's disease and its treatment. J Neural Transm (Vienna) 2019; 126:455-471. [PMID: 30637481 PMCID: PMC6456481 DOI: 10.1007/s00702-019-01969-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 01/06/2019] [Indexed: 02/08/2023]
Abstract
The adenosine homo, iso and heteroreceptor complexes in the basal ganglia play a highly significant role in modulating the indirect and direct pathways and the striosomal projections to the nigro-striatal DA system. The major adenosine receptor complexes in the striato-pallidal GABA neurons can be the A2AR-D2R and A2AR-D2R-mGluR5 receptor complexes, in which A2AR protomers and mGluR5 protomers can allosterically interact to inhibit D2R protomer signaling. Through a reorganization of these heteroreceptor complexes upon chronic dopaminergic treatment a pathological and prolonged inhibition of D2R receptor protomer signaling can develop with motor inhibition and wearing off of the therapeutic effects of levodopa and dopamine receptor agonists. The direct pathway is enriched in D1R in and around glutamate synapses enhancing the ability of these GABA neurons to be activated and increase motor initiation. The brake on these GABA neurons is in this case exerted by A1R forming A1R-D1R heteroreceptor complexes in which they allosterically inhibit D1R signaling and thereby reduce motor initiation. Upon chronic levodopa treatment a reorganization of the D1R heteroreceptor complexes develops with the formation of putative A1R-D1R-D3 in addition to D1R-D3R complexes in which D3R enhances D1R protomer signaling and may make the A1R protomer brake less effective. Alpha-synuclein monomers-dimers are postulated to form complexes with A2AR homo and heteroprotomers in the plasma membrane enhancing alpha-synuclein aggregation and toxicity. The alpha-synuclein fibrils formed in the A2AR enriched dendritic spines of the striato-pallidal GABA neurons may reach the surrounding DA terminals via extracellular-vesicle-mediated volume transmission involving internalization of the vesicles and their cargo (alpha-synuclein fibrils) into the vulnerable DA terminals, enhancing their degeneration followed by retrograde flow of these fibrils in the DA axons to the vulnerable nigral DA nerve cells.
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Affiliation(s)
- Dasiel O. Borroto-Escuela
- Department of Neuroscience, Karolinska Institutet, Biomedicum, B0851, Solnavägen 9, 17177 Stockholm, Sweden
- Observatorio Cubano de Neurociencias, Grupo Bohío-Estudio, Zayas 50, 62100 Yaguajay, Cuba
| | - Kjell Fuxe
- Department of Neuroscience, Karolinska Institutet, Biomedicum, B0851, Solnavägen 9, 17177 Stockholm, Sweden
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