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Wang P, Bi Y, Li M, Chen J, Wang Z, Wen H, Zhou M, Luo M, Zhang W. Cortico-striatal gamma oscillations are modulated by dopamine D3 receptors in dyskinetic rats. Neural Regen Res 2025; 20:1164-1177. [PMID: 38989954 PMCID: PMC11438323 DOI: 10.4103/nrr.nrr-d-23-01240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 01/16/2024] [Indexed: 07/12/2024] Open
Abstract
JOURNAL/nrgr/04.03/01300535-202504000-00031/figure1/v/2024-07-06T104127Z/r/image-tiff Long-term levodopa administration can lead to the development of levodopa-induced dyskinesia. Gamma oscillations are a widely recognized hallmark of abnormal neural electrical activity in levodopa-induced dyskinesia. Currently, studies have reported increased oscillation power in cases of levodopa-induced dyskinesia. However, little is known about how the other electrophysiological parameters of gamma oscillations are altered in levodopa-induced dyskinesia. Furthermore, the role of the dopamine D3 receptor, which is implicated in levodopa-induced dyskinesia, in movement disorder-related changes in neural oscillations is unclear. We found that the cortico-striatal functional connectivity of beta oscillations was enhanced in a model of Parkinson's disease. Furthermore, levodopa application enhanced cortical gamma oscillations in cortico-striatal projections and cortical gamma aperiodic components, as well as bidirectional primary motor cortex (M1) ↔ dorsolateral striatum gamma flow. Administration of PD128907 (a selective dopamine D3 receptor agonist) induced dyskinesia and excessive gamma oscillations with a bidirectional M1 ↔ dorsolateral striatum flow. However, administration of PG01037 (a selective dopamine D3 receptor antagonist) attenuated dyskinesia, suppressed gamma oscillations and cortical gamma aperiodic components, and decreased gamma causality in the M1 → dorsolateral striatum direction. These findings suggest that the dopamine D3 receptor plays a role in dyskinesia-related oscillatory activity, and that it has potential as a therapeutic target for levodopa-induced dyskinesia.
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Affiliation(s)
- Pengfei Wang
- Neurosurgery Center, Department of Pediatric Neurosurgery, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
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Zamanian MY, Kamran Z, Tavakoli MR, Oghenemaro EF, Abohassan M, Kubaev A, Nathiya D, Kaur P, Zwamel AH, Abdulamer RS. The Role of ΔFosB in the Pathogenesis of Levodopa-Induced Dyskinesia: Mechanisms and Therapeutic Strategies. Mol Neurobiol 2025:10.1007/s12035-025-04720-z. [PMID: 39890697 DOI: 10.1007/s12035-025-04720-z] [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: 09/13/2024] [Accepted: 01/21/2025] [Indexed: 02/03/2025]
Abstract
Levodopa-induced dyskinesia (LID) represents a significant complication associated with the long-term administration of levodopa (L-DOPA) for the treatment of Parkinson's disease (PD). This review examines the critical role of ΔFosB, a transcription factor, in the pathogenesis of LID and explores potential therapeutic interventions. ΔFosB accumulates within the striatum in response to chronic dopaminergic stimulation, thereby driving maladaptive changes that culminate in dyskinesia. Its persistent expression modifies gene transcription, influencing neuronal plasticity and contributing to the sustained presence of dyskinetic movements. This study explains how ΔFosB functions at the molecular level, focusing on its connections with dopamine D1 receptors, the cAMP/PKA signaling pathway, and its regulatory effects on downstream targets such as DARPP-32 and GluA1 AMPA receptor subunits. Additionally, it examines how neuronal nitric oxide synthase (nNOS) affects ΔFosB levels and the development of LID. This review also considers the interactions between ΔFosB and other signaling pathways, such as ERK and mTOR, in the context of LID and striatal plasticity. Emerging therapeutic strategies targeting ΔFosB and its associated pathways include pharmacological interventions like ranitidine, 5-hydroxytryptophan, and carnosic acid. Furthermore, this study addresses the role of JunD, another component of the AP-1 transcription factor complex, in the pathogenesis of LID. Understanding the molecular mechanisms by which ΔFosB contributes to LID offers promising avenues for developing novel treatments that could mitigate dyskinesia and improve the quality of life for PD patients undergoing long-term L-DOPA therapy.
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Affiliation(s)
- Mohammad Yasin Zamanian
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran.
- Department of Physiology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, 6718773654, Iran.
| | - Zahra Kamran
- Department of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Marziye Ranjbar Tavakoli
- Pharmaceutical Sciences and Cosmetic Products Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Enwa Felix Oghenemaro
- Department of Pharmaceutical Microbiology & Biotechnology, Faculty of Pharmacy, Delta State University, Abraka, Nigeria
| | - Mohammad Abohassan
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - Aziz Kubaev
- Department of Maxillofacial Surgery, Samarkand State Medical University, 18 Amir Temur Street, 140100, Samarkand, Uzbekistan
| | - Deepak Nathiya
- Department of Pharmacy Practice, NIMS Institute of Pharmacy, NIMS University Rajasthan, Jaipur, India
| | - Parjinder Kaur
- Chandigarh Pharmacy College, Chandigarh Group of Colleges-Jhanjeri, Mohali, 140307, Punjab, India
| | - Ahmed Hussein Zwamel
- Medical Laboratory Technique College, The Islamic University, Najaf, Iraq
- Medical Laboratory Technique College, The Islamic University of Al Diwaniyah, Al Diwaniyah, Iraq
- Medical Laboratory Technique College, The Islamic University of Babylon, Babylon, Iraq
| | - Resan Shakir Abdulamer
- Department of Medical Laboratories Technology, Al-Nisour University College, Nisour Seq. Karkh, Baghdad, Iraq
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Atudorei M, Del Agua Villa C, Gether U, Cenci MA, Siebner HR, Rickhag M. Bilateral chemogenetic activation of intratelencephalic neurons in motor cortex reduces spontaneous locomotor activity in mice. Neurobiol Dis 2025; 204:106755. [PMID: 39608470 DOI: 10.1016/j.nbd.2024.106755] [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: 10/01/2024] [Revised: 11/25/2024] [Accepted: 11/25/2024] [Indexed: 11/30/2024] Open
Abstract
Intratelencephalic neurons are a crucial class of cortical principal neurons that heavily innervate the striatum and cortical areas bilaterally. Their extensive cortico-cortical and cortico-striatal connectivity enables sensorimotor integration within the telencephalon, but their role in motor control remains poorly understood. Here, we used a chemogenetic approach to explore the role of intratelencephalic neurons in spontaneous locomotor activity. Bilateral chemogenetic activation of intratelencephalic Tlx3+ neurons in the mouse motor cortex reduced spontaneous locomotor activity in the open field, increasing states of freezing and immobility. This anti-motor effect was achieved in separate experiments with either administration of two chemogenetic actuators, clozapine N-oxide and deschloroclozapine. A systemic administration of the dopamine D1 receptor agonist SKF82958 reversed the chemogenetic effect on locomotor activity. Selective chemogenetic stimulation of intratelencephalic neurons was confirmed through post-mortem c-Fos quantification in cortical layer 5 Tlx3+ neurons. The results establish a causal link between the activity level of intratelencephalic neurons in the motor cortex, spontaneous locomotor activity in the open field, and the dopamine system. The findings are compatible with the hypothesis that intratelencephalic neurons regulate spontaneous motor behavior via its bilateral cortico-striatal projections.
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Affiliation(s)
- Mihai Atudorei
- Danish Research Centre for Magnetic Resonance (DRCMR), Department of Radiology and Nuclear Medicine, Copenhagen University Hospital - Amager and Hvidovre, Copenhagen, Denmark
| | - Christian Del Agua Villa
- Danish Research Centre for Magnetic Resonance (DRCMR), Department of Radiology and Nuclear Medicine, Copenhagen University Hospital - Amager and Hvidovre, Copenhagen, Denmark
| | - Ulrik Gether
- Department of Neuroscience, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | | | - Hartwig Roman Siebner
- Danish Research Centre for Magnetic Resonance (DRCMR), Department of Radiology and Nuclear Medicine, Copenhagen University Hospital - Amager and Hvidovre, Copenhagen, Denmark; Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark; Department of Neurology, Copenhagen University Hospital - Bispebjerg, Copenhagen, Denmark.
| | - Mattias Rickhag
- Danish Research Centre for Magnetic Resonance (DRCMR), Department of Radiology and Nuclear Medicine, Copenhagen University Hospital - Amager and Hvidovre, Copenhagen, Denmark; Department of Neuroscience, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
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4
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Del Agua Villa C, Atudorei M, Siebner HR, Rickhag M. Pharmacological targeting of dopamine D1 or D2 receptors evokes a rapid-onset parkinsonian motor phenotype in mice. Eur J Neurosci 2024; 60:7006-7024. [PMID: 39626697 DOI: 10.1111/ejn.16622] [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: 05/15/2024] [Revised: 11/04/2024] [Accepted: 11/15/2024] [Indexed: 12/17/2024]
Abstract
Dopaminergic nigrostriatal denervation in Parkinson's disease (PD) disrupts the functional balance between striatal projecting neurons, leading to aberrant activity in the cortico-basal ganglia circuit and characteristic motor symptoms. While genetic and toxin-based animal models are commonly used to mimic PD pathology and behaviour, they have limitations when combined with circuit manipulation tools. This highlights the need for complementary approaches, particularly when combined with viral-based circuit targeting of specific neuronal subpopulations involved in PD circuit dysfunction. Here, we pursue a pharmacological approach targeting dopamine D1 or D2 receptors to induce dopamine deprivation and to replicate key motor symptoms in PD. We demonstrate a clear dose-dependent induction of parkinsonian motor behaviour by both a dopamine D1 receptor antagonist (SCH23390) and a D2 receptor antagonist (haloperidol). The motor phenotype is evaluated by considering relevant motor metrics in an open-field maze platform. The proposed parkinsonian pharmacological model constitutes an acute, flexible approach, which allows parallel brain circuit manipulations.
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Affiliation(s)
- Christian Del Agua Villa
- Danish Research Centre for Magnetic Resonance (DRCMR), Department of Radiology and Nuclear Medicine, Copenhagen University Hospital - Amager and Hvidovre, Hvidovre, Denmark
| | - Mihai Atudorei
- Danish Research Centre for Magnetic Resonance (DRCMR), Department of Radiology and Nuclear Medicine, Copenhagen University Hospital - Amager and Hvidovre, Hvidovre, Denmark
| | - Hartwig Roman Siebner
- Danish Research Centre for Magnetic Resonance (DRCMR), Department of Radiology and Nuclear Medicine, Copenhagen University Hospital - Amager and Hvidovre, Hvidovre, Denmark
- Department of Neurology, Copenhagen University Hospital Bispebjerg and Frederiksberg, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Mattias Rickhag
- Danish Research Centre for Magnetic Resonance (DRCMR), Department of Radiology and Nuclear Medicine, Copenhagen University Hospital - Amager and Hvidovre, Hvidovre, Denmark
- Molecular Neuropharmacology and Genetics Laboratory, Department of Neuroscience, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Alcacer C, Klaus A, Mendonça M, Abalde SF, Cenci MA, Costa RM. Abnormal hyperactivity of specific striatal ensembles encodes distinct dyskinetic behaviors revealed by high-resolution clustering. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.09.06.611664. [PMID: 39314449 PMCID: PMC11418934 DOI: 10.1101/2024.09.06.611664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 09/25/2024]
Abstract
L-DOPA-induced dyskinesia (LID) is a debilitating complication of dopamine replacement therapy in Parkinson's disease and the most common hyperkinetic disorder of basal ganglia origin. Abnormal activity of striatal D1 and D2 spiny projection neurons (SPNs) is critical for LID, yet the link between SPN activity patterns and specific dyskinetic movements remains unknown. To explore this, we developed a novel method for clustering movements based on high-resolution motion sensors and video recordings. In a mouse model of LID, this method identified two main dyskinesia types and pathological rotations, all absent during normal behavior. Using single-cell resolution imaging, we found that specific sets of both D1 and D2-SPNs were abnormally active during these pathological movements. Under baseline conditions, the same SPN sets were active during behaviors sharing physical features with LID movements. These findings indicate that ensembles of behavior-encoding D1- and D2-SPNs form new combinations of hyperactive neurons mediating specific dyskinetic movements.
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Affiliation(s)
- Cristina Alcacer
- Neurobiology of Action, Champalimaud Research, Champalimaud Center for the Unknown, Lisbon, Portugal
- Basal Ganglia Pathophysiology Unit, Dept. of Experiment Medical Science, Lund University, Sweden
- Systems Biology Department, University of Alcalá, Madrid, Spain; Institute Ramón y Cajal for Health Research (IRYCIS), Madrid, Spain
| | - Andreas Klaus
- Neurobiology of Action, Champalimaud Research, Champalimaud Center for the Unknown, Lisbon, Portugal
| | - Marcelo Mendonça
- Neurobiology of Action, Champalimaud Research, Champalimaud Center for the Unknown, Lisbon, Portugal
- NOVA Medical School|Faculdade de Ciências Médicas, Universidade Nova de Lisboa, Lisbon, Portugal
- Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network, Chevy Chase, MD 20815
| | - Sara F. Abalde
- Neurobiology of Action, Champalimaud Research, Champalimaud Center for the Unknown, Lisbon, Portugal
| | - Maria Angela Cenci
- Basal Ganglia Pathophysiology Unit, Dept. of Experiment Medical Science, Lund University, Sweden
| | - Rui M. Costa
- Neurobiology of Action, Champalimaud Research, Champalimaud Center for the Unknown, Lisbon, Portugal
- Zuckerman Mind Brain Behavior Institute, Department of Neuroscience, Columbia University, New York, NY, USA
- Allen Institute, Seattle, WA, USA
- Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network, Chevy Chase, MD 20815
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6
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Scarduzio M, Eskow Jaunarajs KL, Standaert DG. Striatal cholinergic transmission in an inducible transgenic mouse model of paroxysmal non-kinesiogenic dyskinesia. Neurobiol Dis 2024; 201:106685. [PMID: 39343248 DOI: 10.1016/j.nbd.2024.106685] [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: 08/10/2024] [Revised: 09/16/2024] [Accepted: 09/26/2024] [Indexed: 10/01/2024] Open
Abstract
Altered interaction between striatonigral dopaminergic (DA) inputs and local acetylcholine (ACh) in striatum has long been hypothesized to play a central role in the pathophysiology of dystonia and dyskinesia. Indeed, previous research using several genetic mouse models of human isolated dystonia identified a shared endophenotype with paradoxical excitation of striatal cholinergic interneuron (ChIs) activity in response to activation of dopamine D2 receptors (D2R). These mouse models lack a dystonic motor phenotype, which leaves a critical gap in comprehending the role of DA and ACh transmission in the manifestations of dystonia. To tackle this question, we used a combination of ex vivo slice physiology and in vivo monitoring of striatal ACh dynamics in the inducible, phenotypically penetrant, transgenic mouse model of paroxysmal non-kinesiogenic dyskinesia (PNKD), an animal with both dystonic and dyskinetic features. We found that, similarly to genetic models of isolated dystonia, the PNKD mouse displays D2R-induced paradoxical excitation of ChI firing in ex vivo striatal brain slices. In vivo, caffeine triggers dystonic symptoms while reversing the D2R-mediated excitation of ChIs and desynchronizing ACh release in PNKD mice. In WT littermate controls, caffeine stimulates spontaneous locomotion through a similar but reversed mechanism involving an excitatory switch of the D2R control of ChI activity, associated with enhanced synchronization of ACh release. These observations suggest that the "paradoxical excitation" of cholinergic interneurons described in isolated dystonia models could represent a compensatory or protective mechanism that prevents manifestation of movement abnormalities and that phenotypic dystonia is possible only when this is absent. These findings also suggest that D2Rs may play an important role in synchronizing the ChI network leading to rhythmic ACh release during heightened movement states. Dysfunction of this interaction and corresponding desynchrony of ACh release may contribute to aberrant movements.
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Affiliation(s)
- Mariangela Scarduzio
- Center for Neurodegeneration and Experimental Therapeutics, Birmingham, AL, USA; Department of Neurology, UAB, Birmingham, AL, USA.
| | - Karen L Eskow Jaunarajs
- Center for Neurodegeneration and Experimental Therapeutics, Birmingham, AL, USA; Department of Neurology, UAB, Birmingham, AL, USA
| | - David G Standaert
- Center for Neurodegeneration and Experimental Therapeutics, Birmingham, AL, USA; Department of Neurology, UAB, Birmingham, AL, USA
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7
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Ahmed MR, Zheng C, Dunning JL, Ahmed MS, Ge C, Pair FS, Gurevich VV, Gurevich EV. Arrestin-3-assisted activation of JNK3 mediates dopaminergic behavioral sensitization. Cell Rep Med 2024; 5:101623. [PMID: 38936368 PMCID: PMC11293330 DOI: 10.1016/j.xcrm.2024.101623] [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: 11/08/2023] [Revised: 04/15/2024] [Accepted: 06/05/2024] [Indexed: 06/29/2024]
Abstract
In rodents with unilateral ablation of neurons supplying dopamine to the striatum, chronic treatment with the dopamine precursor L-DOPA induces a progressive increase of behavioral responses, a process known as behavioral sensitization. This sensitization is blunted in arrestin-3 knockout mice. Using virus-mediated gene delivery to the dopamine-depleted striatum of these mice, we find that the restoration of arrestin-3 fully rescues behavioral sensitization, whereas its mutant defective in c-Jun N-terminal kinase (JNK) activation does not. A 25-residue arrestin-3-derived peptide that facilitates JNK3 activation in cells, expressed ubiquitously or selectively in direct pathway striatal neurons, also fully rescues sensitization, whereas an inactive homologous arrestin-2-derived peptide does not. Behavioral rescue is accompanied by the restoration of JNK3 activity, as reflected by JNK-dependent phosphorylation of the transcription factor c-Jun in the dopamine-depleted striatum. Thus, arrestin-3-assisted JNK3 activation in direct pathway neurons is a critical element of the molecular mechanism underlying sensitization upon dopamine depletion and chronic L-DOPA treatment.
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Affiliation(s)
- Mohamed R Ahmed
- Department of Pharmacology, Vanderbilt University, 2200 Pierce Avenue, PRB422, Nashville, TN 37232, USA; University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA 01655, USA; The University of Alabama at Birmingham, SHEL 121, 1825 University Boulevard, Birmingham, AL 35294-2182, USA
| | - Chen Zheng
- Department of Pharmacology, Vanderbilt University, 2200 Pierce Avenue, PRB422, Nashville, TN 37232, USA
| | - Jeffery L Dunning
- Contet Laboratory, Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, USA
| | - Mohamed S Ahmed
- Department of Pharmacology, Vanderbilt University, 2200 Pierce Avenue, PRB422, Nashville, TN 37232, USA
| | - Connie Ge
- University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA 01655, USA
| | - F Sanders Pair
- The University of Alabama at Birmingham, SHEL 121, 1825 University Boulevard, Birmingham, AL 35294-2182, USA
| | - Vsevolod V Gurevich
- Department of Pharmacology, Vanderbilt University, 2200 Pierce Avenue, PRB422, Nashville, TN 37232, USA
| | - Eugenia V Gurevich
- Department of Pharmacology, Vanderbilt University, 2200 Pierce Avenue, PRB422, Nashville, TN 37232, USA.
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Shen C, Shen B, Liu D, Han L, Zou K, Gan L, Ren J, Wu B, Tang Y, Zhao J, Sun Y, Liu F, Yu W, Yao H, Wu J, Wang J. Bidirectional regulation of levodopa-induced dyskinesia by a specific neural ensemble in globus pallidus external segment. Cell Rep Med 2024; 5:101566. [PMID: 38759649 PMCID: PMC11228392 DOI: 10.1016/j.xcrm.2024.101566] [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: 07/10/2023] [Revised: 02/15/2024] [Accepted: 04/19/2024] [Indexed: 05/19/2024]
Abstract
Levodopa-induced dyskinesia (LID) is an intractable motor complication arising in Parkinson's disease with the progression of disease and chronic treatment of levodopa. However, the specific cell assemblies mediating dyskinesia have not been fully elucidated. Here, we utilize the activity-dependent tool to identify three brain regions (globus pallidus external segment [GPe], parafascicular thalamic nucleus, and subthalamic nucleus) that specifically contain dyskinesia-activated ensembles. An intensity-dependent hyperactivity in the dyskinesia-activated subpopulation in GPe (GPeTRAPed in LID) is observed during dyskinesia. Optogenetic inhibition of GPeTRAPed in LID significantly ameliorates LID, whereas reactivation of GPeTRAPed in LID evokes dyskinetic behavior in the levodopa-off state. Simultaneous chemogenetic reactivation of GPeTRAPed in LID and another previously reported ensemble in striatum fully reproduces the dyskinesia induced by high-dose levodopa. Finally, we characterize GPeTRAPed in LID as a subset of prototypic neurons in GPe. These findings provide theoretical foundations for precision medication and modulation of LID in the future.
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Affiliation(s)
- Cong Shen
- Department of Neurology and National Research Center for Aging and Medicine & National Center for Neurological Disorders, State Key Laboratory of Medical Neurobiology, Huashan Hospital, Fudan University, Shanghai, China
| | - Bo Shen
- Department of Neurology and National Research Center for Aging and Medicine & National Center for Neurological Disorders, State Key Laboratory of Medical Neurobiology, Huashan Hospital, Fudan University, Shanghai, China
| | - Dechen Liu
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Brain Cognition and Brain-inspired Intelligence Technology, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China
| | - Linlin Han
- Department of Neurology and National Research Center for Aging and Medicine & National Center for Neurological Disorders, State Key Laboratory of Medical Neurobiology, Huashan Hospital, Fudan University, Shanghai, China
| | - Kexin Zou
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Brain Cognition and Brain-inspired Intelligence Technology, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China
| | - Linhua Gan
- Department of Neurology and National Research Center for Aging and Medicine & National Center for Neurological Disorders, State Key Laboratory of Medical Neurobiology, Huashan Hospital, Fudan University, Shanghai, China
| | - Jingyu Ren
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Brain Cognition and Brain-inspired Intelligence Technology, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China
| | - Bin Wu
- Department of Neurology and National Research Center for Aging and Medicine & National Center for Neurological Disorders, State Key Laboratory of Medical Neurobiology, Huashan Hospital, Fudan University, Shanghai, China
| | - Yilin Tang
- Department of Neurology and National Research Center for Aging and Medicine & National Center for Neurological Disorders, State Key Laboratory of Medical Neurobiology, Huashan Hospital, Fudan University, Shanghai, China
| | - Jue Zhao
- Department of Neurology and National Research Center for Aging and Medicine & National Center for Neurological Disorders, State Key Laboratory of Medical Neurobiology, Huashan Hospital, Fudan University, Shanghai, China
| | - Yimin Sun
- Department of Neurology and National Research Center for Aging and Medicine & National Center for Neurological Disorders, State Key Laboratory of Medical Neurobiology, Huashan Hospital, Fudan University, Shanghai, China
| | - Fengtao Liu
- Department of Neurology and National Research Center for Aging and Medicine & National Center for Neurological Disorders, State Key Laboratory of Medical Neurobiology, Huashan Hospital, Fudan University, Shanghai, China
| | - Wenbo Yu
- Department of Neurology and National Research Center for Aging and Medicine & National Center for Neurological Disorders, State Key Laboratory of Medical Neurobiology, Huashan Hospital, Fudan University, Shanghai, China
| | - Haishan Yao
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Brain Cognition and Brain-inspired Intelligence Technology, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China.
| | - Jianjun Wu
- Department of Neurology and National Research Center for Aging and Medicine & National Center for Neurological Disorders, State Key Laboratory of Medical Neurobiology, Huashan Hospital, Fudan University, Shanghai, China.
| | - Jian Wang
- Department of Neurology and National Research Center for Aging and Medicine & National Center for Neurological Disorders, State Key Laboratory of Medical Neurobiology, Huashan Hospital, Fudan University, Shanghai, China.
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Piotrowski D, Clemensson EKH, Nguyen HP, Mark MD. Phenotypic analysis of ataxia in spinocerebellar ataxia type 6 mice using DeepLabCut. Sci Rep 2024; 14:8571. [PMID: 38609436 PMCID: PMC11014858 DOI: 10.1038/s41598-024-59187-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 04/08/2024] [Indexed: 04/14/2024] Open
Abstract
This study emphasizes the benefits of open-source software such as DeepLabCut (DLC) and R to automate, customize and enhance data analysis of motor behavior. We recorded 2 different spinocerebellar ataxia type 6 mouse models while performing the classic beamwalk test, tracked multiple body parts using the markerless pose-estimation software DLC and analyzed the tracked data using self-written scripts in the programming language R. The beamwalk analysis script (BAS) counts and classifies minor and major hindpaw slips with an 83% accuracy compared to manual scoring. Nose, belly and tail positions relative to the beam, as well as the angle at the tail base relative to the nose and tail tip were determined to characterize motor deficits in greater detail. Our results found distinct ataxic abnormalities such as an increase in major left hindpaw slips and a lower belly and tail position in both SCA6 ataxic mouse models compared to control mice at 18 months of age. Furthermore, a more detailed analysis of various body parts relative to the beam revealed an overall lower body position in the SCA684Q compared to the CT-longQ27PC mouse line at 18 months of age, indicating a more severe ataxic deficit in the SCA684Q group.
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Affiliation(s)
- Dennis Piotrowski
- Behavioral Neuroscience, Faculty for Biology and Biotechnology, Ruhr-University Bochum, ND7/32, Universitätsstr. 150, 44780, Bochum, Germany
| | - Erik K H Clemensson
- Department of Human Genetics, Medical Faculty, Ruhr-University Bochum, Bochum, Germany
| | - Huu Phuc Nguyen
- Department of Human Genetics, Medical Faculty, Ruhr-University Bochum, Bochum, Germany
| | - Melanie D Mark
- Behavioral Neuroscience, Faculty for Biology and Biotechnology, Ruhr-University Bochum, ND7/32, Universitätsstr. 150, 44780, Bochum, Germany.
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10
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Li C, Elabi OF, Fieblinger T, Cenci MA. Structural-functional properties of direct-pathway striatal neurons at early and chronic stages of dopamine denervation. Eur J Neurosci 2024; 59:1227-1241. [PMID: 37876330 DOI: 10.1111/ejn.16166] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 09/22/2023] [Accepted: 09/25/2023] [Indexed: 10/26/2023]
Abstract
The dendritic arbour of striatal projection neurons (SPNs) is the primary anatomical site where dopamine and glutamate inputs to the basal ganglia functionally interact to control movement. These dendritic arbourisations undergo atrophic changes in Parkinson's disease. A reduction in the dendritic complexity of SPNs is found also in animal models with severe striatal dopamine denervation. Using 6-hydroxydopamine (6-OHDA) lesions of the medial forebrain bundle as a model, we set out to compare morphological and electrophysiological properties of SPNs at an early versus a chronic stage of dopaminergic degeneration. Ex vivo recordings were performed in transgenic mice where SPNs forming the direct pathway (dSPNs) express a fluorescent reporter protein. At both the time points studied (5 and 28 days following 6-OHDA lesion), there was a complete loss of dopaminergic fibres through the dorsolateral striatum. A reduction in dSPN dendritic complexity and spine density was manifest at 28, but not 5 days post-lesion. At the late time point, dSPN also exhibited a marked increase in intrinsic excitability (reduced rheobase current, increased input resistance, more evoked action potentials in response to depolarising currents), which was not present at 5 days. The increase in neuronal excitability was accompanied by a marked reduction in inward-rectifying potassium (Kir) currents (which dampen the SPN response to depolarising stimuli). Our results show that dSPNs undergo delayed coordinate changes in dendritic morphology, intrinsic excitability and Kir conductance following dopamine denervation. These changes are predicted to interfere with the dSPN capacity to produce a normal movement-related output.
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Affiliation(s)
- Chang Li
- Basal Ganglia Pathophysiology Unit, Department Experimental Medical Science, Wallenberg Neuroscience Center, Lund University, Lund, Sweden
| | - Osama F Elabi
- Basal Ganglia Pathophysiology Unit, Department Experimental Medical Science, Wallenberg Neuroscience Center, Lund University, Lund, Sweden
| | - Tim Fieblinger
- Basal Ganglia Pathophysiology Unit, Department Experimental Medical Science, Wallenberg Neuroscience Center, Lund University, Lund, Sweden
- Evotec SE, Hamburg, Germany
| | - M Angela Cenci
- Basal Ganglia Pathophysiology Unit, Department Experimental Medical Science, Wallenberg Neuroscience Center, Lund University, Lund, Sweden
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11
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Cenci MA, Kumar A. Cells, pathways, and models in dyskinesia research. Curr Opin Neurobiol 2024; 84:102833. [PMID: 38184982 DOI: 10.1016/j.conb.2023.102833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/01/2023] [Accepted: 12/02/2023] [Indexed: 01/09/2024]
Abstract
L-DOPA-induced dyskinesia (LID) is the most common form of hyperkinetic movement disorder resulting from altered information processing in the cortico-basal ganglia network. We here review recent advances clarifying the altered interplay between striatal output pathways in this movement disorder. We also review studies revealing structural and synaptic changes to the striatal microcircuitry and altered cortico-striatal activity dynamics in LID. We furthermore highlight the recent progress made in understanding the involvement of cerebellar and brain stem nuclei. These recent developments illustrate that dyskinesia research continues to provide key insights into cellular and circuit-level plasticity within the cortico-basal ganglia network and its interconnected brain regions.
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Affiliation(s)
- M Angela Cenci
- Basal Ganglia Pathophysiology Unit, Department Experimental Medical Science, Lund University, Lund, Sweden.
| | - Arvind Kumar
- School of Electrical Engineering and Computer Science, KTH Royal Institute of Technology, Stockholm, Sweden. https://twitter.com/arvin_neuro
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12
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Ahmed MR, Zheng C, Dunning JL, Ahmed MS, Ge C, Sanders Pair F, Gurevich VV, Gurevich EV. Arrestin-3-assisted activation of JNK3 mediates dopaminergic behavioral and signaling plasticity in vivo. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.27.564447. [PMID: 37961199 PMCID: PMC10634923 DOI: 10.1101/2023.10.27.564447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
In rodents with unilateral ablation of the substantia nigra neurons supplying dopamine to the striatum, chronic treatment with the dopamine precursor L-DOPA or dopamine agonists induces a progressive increase of behavioral responses, a process known as behavioral sensitization. The sensitization is blunted in arrestin-3 knockout mice. Using virus-mediated gene delivery to the dopamine-depleted striatum of arrestin-3 knockout mice, we found that the restoration of arrestin-3 fully rescued behavioral sensitization, whereas its mutant defective in JNK activation did not. A 25-residue arrestin-3-derived peptide that facilitates JNK3 activation in cells, expressed ubiquitously or selectively in the direct pathway striatal neurons, fully rescued sensitization, whereas an inactive homologous arrestin-2-derived peptide did not. Behavioral rescue was accompanied by the restoration of JNK3 activity and of JNK-dependent phosphorylation of the transcription factor c-Jun in the dopamine-depleted striatum. Thus, arrestin-3-dependent JNK3 activation in direct pathway neurons is a critical element of the molecular mechanism underlying sensitization.
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Affiliation(s)
- Mohamed R. Ahmed
- Department of Pharmacology, Vanderbilt University, Nashville, TN 37232
| | - Chen Zheng
- Department of Pharmacology, Vanderbilt University, Nashville, TN 37232
| | | | - Mohamed S. Ahmed
- Department of Pharmacology, Vanderbilt University, Nashville, TN 37232
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13
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Sáez M, Keifman E, Alberquilla S, Coll C, Reig R, Murer MG, Moratalla R. D2 dopamine receptors and the striatopallidal pathway modulate L-DOPA-induced dyskinesia in the mouse. Neurobiol Dis 2023; 186:106278. [PMID: 37683958 DOI: 10.1016/j.nbd.2023.106278] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 08/18/2023] [Accepted: 08/31/2023] [Indexed: 09/10/2023] Open
Abstract
L-DOPA-induced dyskinesia (LID) remains a major complication of Parkinson's disease management for which better therapies are necessary. The contribution of the striatonigral direct pathway to LID is widely acknowledged but whether the striatopallidal pathway is involved remains debated. Selective optogenetic stimulation of striatonigral axon terminals induces dyskinesia in mice rendered hemiparkinsonian with the toxin 6-hydroxydopamine (6-OHDA). Here we show that optogenetically-induced dyskinesia is increased by the D2-type dopamine receptor agonist quinpirole. Although the quinpirole effect may be mediated by D2 receptor stimulation in striatopallidal neurons, alternative mechanisms may be responsible as well. To selectively modulate the striatopallidal pathway, we selectively expressed channelrhodopsin-2 (ChR2) in D2 receptor expressing neurons by crossing D2-Cre and ChR2-flox mice. The animals were rendered hemiparkinsonian and implanted with an optic fiber at the ipsilateral external globus pallidus (GPe). Stimulation of ChR2 at striatopallidal axon terminals reduced LID and also general motility during the off L-DOPA state, without modifying the pro-motor effect of low doses of L-DOPA producing mild or no dyskinesia. Overall, the present study shows that D2-type dopamine receptors and the striatopallidal pathway modulate dyskinesia and suggest that targeting striatopallidal axon terminals at the GPe may have therapeutic potential in the management of LID.
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Affiliation(s)
- María Sáez
- Instituto Cajal, Consejo Superior de Investigaciones Científicas, CSIC, Madrid 28002, Spain; Instituto de Neurociencias UMH-CSIC, San Juan de Alicante, Alicante 03550, Spain
| | - Ettel Keifman
- Universidad de Buenos Aires, Facultad de Medicina, Departamento de Ciencias Fisiológicas, Argentina; Universidad de Buenos Aires and CONICET, Instituto de Fisiología y Biofísica Bernardo Houssay (IFIBIO Houssay), 2155 Paraguay St, Buenos Aires 1121, Argentina
| | - Samuel Alberquilla
- Instituto Cajal, Consejo Superior de Investigaciones Científicas, CSIC, Madrid 28002, Spain; CIBERNED, Instituto de Salud Carlos III, Madrid, Spain
| | - Camila Coll
- Universidad de Buenos Aires and CONICET, Instituto de Fisiología y Biofísica Bernardo Houssay (IFIBIO Houssay), 2155 Paraguay St, Buenos Aires 1121, Argentina
| | - Ramón Reig
- Instituto de Neurociencias UMH-CSIC, San Juan de Alicante, Alicante 03550, Spain
| | - Mario Gustavo Murer
- Universidad de Buenos Aires, Facultad de Medicina, Departamento de Ciencias Fisiológicas, Argentina; Universidad de Buenos Aires and CONICET, Instituto de Fisiología y Biofísica Bernardo Houssay (IFIBIO Houssay), 2155 Paraguay St, Buenos Aires 1121, Argentina.
| | - Rosario Moratalla
- Instituto Cajal, Consejo Superior de Investigaciones Científicas, CSIC, Madrid 28002, Spain; CIBERNED, Instituto de Salud Carlos III, Madrid, Spain.
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14
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Hu Y, Ma TC, Alberico SL, Ding Y, Jin L, Kang UJ. Substantia Nigra Pars Reticulata Projections to the Pedunculopontine Nucleus Modulate Dyskinesia. Mov Disord 2023; 38:1850-1860. [PMID: 37461292 PMCID: PMC10932617 DOI: 10.1002/mds.29558] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 06/02/2023] [Accepted: 06/29/2023] [Indexed: 07/21/2023] Open
Abstract
BACKGROUND Long-term use of levodopa for Parkinson's disease (PD) treatment is often hindered by development of motor complications, including levodopa-induced dyskinesia (LID). The substantia nigra pars reticulata (SNr) and globus pallidus internal segment (GPi) are the output nuclei of the basal ganglia. Dysregulation of SNr and GPi activity contributes to PD pathophysiology and LID. OBJECTIVE The objective of this study was to determine whether direct modulation of SNr GABAergic neurons and SNr projections to the pedunculopontine nucleus (PPN) regulates PD symptoms and LID in a mouse model. METHODS We expressed Cre-recombinase activated channelrhodopsin-2 (ChR2) or halorhodopsin adeno-associated virus-2 (AAV2) vectors selectively in SNr GABAergic neurons of Vgat-IRES-Cre mice in a 6-hydroxydopamine model of PD to investigate whether direct optogenetic modulation of SNr neurons or their projections to the PPN regulates PD symptoms and LID expression. The forepaw stepping task, mouse LID rating scale, and open-field locomotion were used to assess akinesia and LID to test the effect of SNr modulation. RESULTS Akinesia was improved by suppressing SNr neuron activity with halorhodopsin. LID was significantly reduced by increasing SNr neuronal activity with ChR2, which did not interfere with the antiakinetic effect of levodopa. Optical stimulation of ChR2 in SNr projections to the PPN recapitulated direct SNr stimulation. CONCLUSIONS Modulation of SNr GABAergic neurons alters akinesia and LID expression in a manner consistent with the rate model of basal ganglia circuitry. Moreover, the projections from SNr to PPN likely mediate the antidyskinetic effect of increasing SNr neuronal activity, identifying a potential novel role for the PPN in LID. © 2023 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Yong Hu
- Department of Neurology, NYU Langone Health, New York, NY 10016, USA
| | - Thong C. Ma
- Department of Neurology, NYU Langone Health, New York, NY 10016, USA
| | | | - Yunmin Ding
- Department of Neurology, NYU Langone Health, New York, NY 10016, USA
| | - Lingjing Jin
- Department of Neurology and Neurological Rehabilitation, Shanghai Yangzhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), School of Medicine, Tongji University, Shanghai 200092, China
| | - Un Jung Kang
- Department of Neurology, NYU Langone Health, New York, NY 10016, USA
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15
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Liu K, Song M, Gao S, Yao L, Zhang L, Feng J, Wang L, Gao R, Wang Y. The Dynamics of Dopamine D 2 Receptor-Expressing Striatal Neurons and the Downstream Circuit Underlying L-Dopa-Induced Dyskinesia in Rats. Neurosci Bull 2023; 39:1411-1425. [PMID: 37022638 PMCID: PMC10465438 DOI: 10.1007/s12264-023-01054-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 12/05/2022] [Indexed: 04/07/2023] Open
Abstract
L-dopa (l-3,4-dihydroxyphenylalanine)-induced dyskinesia (LID) is a debilitating complication of dopamine replacement therapy for Parkinson's disease. The potential contribution of striatal D2 receptor (D2R)-positive neurons and downstream circuits in the pathophysiology of LID remains unclear. In this study, we investigated the role of striatal D2R+ neurons and downstream globus pallidus externa (GPe) neurons in a rat model of LID. Intrastriatal administration of raclopride, a D2R antagonist, significantly inhibited dyskinetic behavior, while intrastriatal administration of pramipexole, a D2-like receptor agonist, yielded aggravation of dyskinesia in LID rats. Fiber photometry revealed the overinhibition of striatal D2R+ neurons and hyperactivity of downstream GPe neurons during the dyskinetic phase of LID rats. In contrast, the striatal D2R+ neurons showed intermittent synchronized overactivity in the decay phase of dyskinesia. Consistent with the above findings, optogenetic activation of striatal D2R+ neurons or their projections in the GPe was adequate to suppress most of the dyskinetic behaviors of LID rats. Our data demonstrate that the aberrant activity of striatal D2R+ neurons and downstream GPe neurons is a decisive mechanism mediating dyskinetic symptoms in LID rats.
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Affiliation(s)
- Kuncheng Liu
- Department of Physiology and Pathophysiology and Institute of Neuroscience, School of Basic Medical Sciences, Xi'an Jiao Tong University Health Science Center, Xi'an, 710061, China
- Department of Clinical Medicine, Xi'an Jiao Tong University Health Science Center, Xi'an, 710061, China
| | - Miaomiao Song
- Department of Physiology and Pathophysiology and Institute of Neuroscience, School of Basic Medical Sciences, Xi'an Jiao Tong University Health Science Center, Xi'an, 710061, China
| | - Shasha Gao
- Department of Physiology and Pathophysiology and Institute of Neuroscience, School of Basic Medical Sciences, Xi'an Jiao Tong University Health Science Center, Xi'an, 710061, China
| | - Lu Yao
- Department of Physiology and Pathophysiology and Institute of Neuroscience, School of Basic Medical Sciences, Xi'an Jiao Tong University Health Science Center, Xi'an, 710061, China
| | - Li Zhang
- Department of Physiology and Pathophysiology and Institute of Neuroscience, School of Basic Medical Sciences, Xi'an Jiao Tong University Health Science Center, Xi'an, 710061, China
| | - Jie Feng
- Department of Physiology and Pathophysiology and Institute of Neuroscience, School of Basic Medical Sciences, Xi'an Jiao Tong University Health Science Center, Xi'an, 710061, China
| | - Ling Wang
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Xi'an Jiao Tong University, Xi'an, 710004, China
| | - Rui Gao
- Department of Medical Imaging and Nuclear Medicine, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an, 710061, China
| | - Yong Wang
- Department of Physiology and Pathophysiology and Institute of Neuroscience, School of Basic Medical Sciences, Xi'an Jiao Tong University Health Science Center, Xi'an, 710061, China.
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16
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Grigoriou S, Espa E, Odin P, Timpka J, von Grothusen G, Jakobsson A, Cenci MA. Comparison of dyskinesia profiles after L-DOPA dose challenges with or without dopamine agonist coadministration. Neuropharmacology 2023:109630. [PMID: 37315840 DOI: 10.1016/j.neuropharm.2023.109630] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 05/22/2023] [Accepted: 06/05/2023] [Indexed: 06/16/2023]
Abstract
Many patients with Parkinson's disease (PD) experiencing l-DOPA-induced dyskinesia (LID) receive adjunct treatment with dopamine agonists, whose functional impact on LID is unknown. We set out to compare temporal and topographic profiles of abnormal involuntary movements (AIMs) after l-DOPA dose challenges including or not the dopamine agonist ropinirole. Twenty-five patients with PD and a history of dyskinesias were sequentially administered either l-DOPA alone (150% of usual morning dose) or an equipotent combination of l-DOPA and ropinirole in random order. Involuntary movements were assessed by two blinded raters prior and every 30 min after drug dosing using the Clinical Dyskinesia Rating Scale (CDRS). A sensor-recording smartphone was secured to the patients' abdomen during the test sessions. The two raters' CDRS scores were highly reliable and concordant with models of hyperkinesia presence and severity trained on accelerometer data. The dyskinesia time curves differed between treatments as the l-DOPA-ropinirole combination resulted in lower peak severity but longer duration of the AIMs compared with l-DOPA alone. At the peak of the AIMs curve (60-120 min), l-DOPA induced a significantly higher total hyperkinesia score, whereas in the end phase (240-270 min), both hyperkinesia and dystonia tended to be more severe after the l-DOPA-ropinirole combination (though reaching statistical significance only for the item, arm dystonia). Our results pave the way for the introduction of a combined l-DOPA-ropinirole challenge test in the early clinical evaluation of antidyskinetic treatments. Furthermore, we propose a machine-learning method to predict CDRS hyperkinesia severity using accelerometer data.
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Affiliation(s)
- Sotirios Grigoriou
- Division of Neurology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden; Department of Neurology, Rehabilitation Medicine, Memory and Geriatrics, Skane University Hospital, Sweden.
| | - Elena Espa
- Basal Ganglia Pathophysiology Unit, Department of Experimental Medical Science, Lund University, Lund, Sweden
| | - Per Odin
- Division of Neurology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden; Department of Neurology, Rehabilitation Medicine, Memory and Geriatrics, Skane University Hospital, Sweden
| | - Jonathan Timpka
- Division of Neurology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden; Department of Neurology, Rehabilitation Medicine, Memory and Geriatrics, Skane University Hospital, Sweden
| | - Gustaf von Grothusen
- Division of Mathematical Statistics, Center for Mathematical Sciences, Lund University, Lund, Sweden
| | - Andreas Jakobsson
- Division of Mathematical Statistics, Center for Mathematical Sciences, Lund University, Lund, Sweden
| | - M Angela Cenci
- Basal Ganglia Pathophysiology Unit, Department of Experimental Medical Science, Lund University, Lund, Sweden
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17
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Corsi S, Scheggi S, Pardu A, Braccagni G, Caruso D, Cioffi L, Diviccaro S, Gentile M, Fanni S, Stancampiano R, Gambarana C, Melcangi RC, Frau R, Carta M. Pregnenolone for the treatment of L-DOPA-induced dyskinesia in Parkinson's disease. Exp Neurol 2023; 363:114370. [PMID: 36878398 DOI: 10.1016/j.expneurol.2023.114370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 02/02/2023] [Accepted: 02/28/2023] [Indexed: 03/08/2023]
Abstract
Growing preclinical and clinical evidence highlights neurosteroid pathway imbalances in Parkinson's Disease (PD) and L-DOPA-induced dyskinesias (LIDs). We recently reported that 5α-reductase (5AR) inhibitors dampen dyskinesias in parkinsonian rats; however, unraveling which specific neurosteroid mediates this effect is critical to optimize a targeted therapy. Among the 5AR-related neurosteroids, striatal pregnenolone has been shown to be increased in response to 5AR blockade and decreased after 6-OHDA lesions in the rat PD model. Moreover, this neurosteroid rescued psychotic-like phenotypes by exerting marked antidopaminergic activity. In light of this evidence, we investigated whether pregnenolone might dampen the appearance of LIDs in parkinsonian drug-naïve rats. We tested 3 escalating doses of pregnenolone (6, 18, 36 mg/kg) in 6-OHDA-lesioned male rats and compared the behavioral, neurochemical, and molecular outcomes with those induced by the 5AR inhibitor dutasteride, as positive control. The results showed that pregnenolone dose-dependently countered LIDs without affecting L-DOPA-induced motor improvements. Post-mortem analyses revealed that pregnenolone significantly prevented the increase of validated striatal markers of dyskinesias, such as phospho-Thr-34 DARPP-32 and phospho-ERK1/2, as well as D1-D3 receptor co-immunoprecipitation in a fashion similar to dutasteride. Moreover, the antidyskinetic effect of pregnenolone was paralleled by reduced striatal levels of BDNF, a well-established factor associated with the development of LIDs. In support of a direct pregnenolone effect, LC/MS-MS analyses revealed that striatal pregnenolone levels strikingly increased after the exogenous administration, with no significant alterations in downstream metabolites. All these data suggest pregnenolone as a key player in the antidyskinetic properties of 5AR inhibitors and highlight this neurosteroid as an interesting novel tool to target LIDs in PD.
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Affiliation(s)
- Sara Corsi
- Department of Biomedical Sciences, University of Cagliari, Cagliari, CA, Italy
| | - Simona Scheggi
- Department of Molecular and Developmental Medicine, University of Siena, Siena, SI, Italy
| | - Alessandra Pardu
- Department of Biomedical Sciences, University of Cagliari, Cagliari, CA, Italy
| | - Giulia Braccagni
- Department of Molecular and Developmental Medicine, University of Siena, Siena, SI, Italy
| | - Donatella Caruso
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milano, MI, Italy
| | - Lucia Cioffi
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milano, MI, Italy
| | - Silvia Diviccaro
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milano, MI, Italy
| | - Mauro Gentile
- Department of Biomedical Sciences, University of Cagliari, Cagliari, CA, Italy
| | - Silvia Fanni
- Department of Biomedical Sciences, University of Cagliari, Cagliari, CA, Italy; Basal Ganglia Pathophysiology Unit, Department Experimental Medical Science, Lund University, Sweden
| | | | - Carla Gambarana
- Department of Molecular and Developmental Medicine, University of Siena, Siena, SI, Italy
| | - Roberto Cosimo Melcangi
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milano, MI, Italy
| | - Roberto Frau
- Department of Biomedical Sciences, University of Cagliari, Cagliari, CA, Italy; "Guy Everett Laboratory", Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy.
| | - Manolo Carta
- Department of Biomedical Sciences, University of Cagliari, Cagliari, CA, Italy.
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18
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Skovgård K, Barrientos SA, Petersson P, Halje P, Cenci MA. Distinctive Effects of D1 and D2 Receptor Agonists on Cortico-Basal Ganglia Oscillations in a Rodent Model of L-DOPA-Induced Dyskinesia. Neurotherapeutics 2023; 20:304-324. [PMID: 36344723 PMCID: PMC10119363 DOI: 10.1007/s13311-022-01309-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/19/2022] [Indexed: 11/09/2022] Open
Abstract
L-DOPA-induced dyskinesia (LID) in Parkinson's disease has been linked to oscillatory neuronal activities in the cortico-basal ganglia network. We set out to examine the pattern of cortico-basal ganglia oscillations induced by selective agonists of D1 and D2 receptors in a rat model of LID. Local field potentials were recorded in freely moving rats using large-scale electrodes targeting three motor cortical regions, dorsomedial and dorsolateral striatum, external globus pallidus, and substantial nigra pars reticulata. Abnormal involuntary movements were elicited by the D1 agonist SKF82958 or the D2 agonist sumanirole, while overall motor activity was quantified using video analysis (DeepLabCut). Both SKF82958 and sumanirole induced dyskinesia, although with significant differences in temporal course, overall severity, and body distribution. The D1 agonist induced prominent narrowband oscillations in the high gamma range (70-110 Hz) in all recorded structures except for the nigra reticulata. Additionally, the D1 agonist induced strong functional connectivity between the recorded structures and the phase analysis revealed that the primary motor cortex (forelimb area) was leading a supplementary motor area and striatum. Following treatment with the D2 agonist, narrowband gamma oscillations were detected only in forelimb motor cortex and dorsolateral striatum, while prominent oscillations in the theta band occurred in the globus pallidus and nigra reticulata. Our results reveal that the dyskinetic effects of D1 and D2 receptor agonists are associated with distinct patterns of cortico-basal ganglia oscillations, suggesting a recruitment of partially distinct networks.
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Affiliation(s)
- Katrine Skovgård
- Basal Ganglia Pathophysiology Unit, Department of Experimental Medical Science, Lund University, BMC A13, 221 84, Lund, Sweden
- The Group for Integrative Neurophysiology and Neurotechnology, Department of Experimental Medical Science, Lund University, Lund, Sweden
| | - Sebastian A Barrientos
- The Group for Integrative Neurophysiology and Neurotechnology, Department of Experimental Medical Science, Lund University, Lund, Sweden
- Department of Integrative Medical Biology, Umeå University, Umeå, Sweden
| | - Per Petersson
- The Group for Integrative Neurophysiology and Neurotechnology, Department of Experimental Medical Science, Lund University, Lund, Sweden
- Department of Integrative Medical Biology, Umeå University, Umeå, Sweden
| | - Pär Halje
- The Group for Integrative Neurophysiology and Neurotechnology, Department of Experimental Medical Science, Lund University, Lund, Sweden
| | - M Angela Cenci
- Basal Ganglia Pathophysiology Unit, Department of Experimental Medical Science, Lund University, BMC A13, 221 84, Lund, Sweden.
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19
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Angela Cenci M, Skovgård K, Odin P. Non-dopaminergic approaches to the treatment of motor complications in Parkinson's disease. Neuropharmacology 2022; 210:109027. [DOI: 10.1016/j.neuropharm.2022.109027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 03/06/2022] [Accepted: 03/09/2022] [Indexed: 12/21/2022]
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