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Zhang F, Liu M, Tuo J, Zhang L, Zhang J, Yu C, Xu Z. Levodopa-induced dyskinesia: interplay between the N-methyl-D-aspartic acid receptor and neuroinflammation. Front Immunol 2023; 14:1253273. [PMID: 37860013 PMCID: PMC10582719 DOI: 10.3389/fimmu.2023.1253273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 09/22/2023] [Indexed: 10/21/2023] Open
Abstract
Parkinson's disease (PD) is a common neurodegenerative disorder of middle-aged and elderly people, clinically characterized by resting tremor, myotonia, reduced movement, and impaired postural balance. Clinically, patients with PD are often administered levodopa (L-DOPA) to improve their symptoms. However, after years of L-DOPA treatment, most patients experience complications of varying severity, including the "on-off phenomenon", decreased efficacy, and levodopa-induced dyskinesia (LID). The development of LID can seriously affect the quality of life of patients, but its pathogenesis is unclear and effective treatments are lacking. Glutamic acid (Glu)-mediated changes in synaptic plasticity play a major role in LID. The N-methyl-D-aspartic acid receptor (NMDAR), an ionotropic glutamate receptor, is closely associated with synaptic plasticity, and neuroinflammation can modulate NMDAR activation or expression; in addition, neuroinflammation may be involved in the development of LID. However, it is not clear whether NMDA receptors are co-regulated with neuroinflammation during LID formation. Here we review how neuroinflammation mediates the development of LID through the regulation of NMDA receptors, and assess whether common anti-inflammatory drugs and NMDA receptor antagonists may be able to mitigate the development of LID through the regulation of central neuroinflammation, thereby providing a new theoretical basis for finding new therapeutic targets for LID.
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Affiliation(s)
- Fanshi Zhang
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Mei Liu
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Jinmei Tuo
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Li Zhang
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Jun Zhang
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Changyin Yu
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Zucai Xu
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- The Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University, Zunyi, China
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2
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Andreska T, Lüningschrör P, Wolf D, McFleder RL, Ayon-Olivas M, Rattka M, Drechsler C, Perschin V, Blum R, Aufmkolk S, Granado N, Moratalla R, Sauer M, Monoranu C, Volkmann J, Ip CW, Stigloher C, Sendtner M. DRD1 signaling modulates TrkB turnover and BDNF sensitivity in direct pathway striatal medium spiny neurons. Cell Rep 2023; 42:112575. [PMID: 37252844 DOI: 10.1016/j.celrep.2023.112575] [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: 05/12/2022] [Revised: 03/09/2023] [Accepted: 05/14/2023] [Indexed: 06/01/2023] Open
Abstract
Disturbed motor control is a hallmark of Parkinson's disease (PD). Cortico-striatal synapses play a central role in motor learning and adaption, and brain-derived neurotrophic factor (BDNF) from cortico-striatal afferents modulates their plasticity via TrkB in striatal medium spiny projection neurons (SPNs). We studied the role of dopamine in modulating the sensitivity of direct pathway SPNs (dSPNs) to BDNF in cultures of fluorescence-activated cell sorting (FACS)-enriched D1-expressing SPNs and 6-hydroxydopamine (6-OHDA)-treated rats. DRD1 activation causes enhanced TrkB translocation to the cell surface and increased sensitivity for BDNF. In contrast, dopamine depletion in cultured dSPN neurons, 6-OHDA-treated rats, and postmortem brain of patients with PD reduces BDNF responsiveness and causes formation of intracellular TrkB clusters. These clusters associate with sortilin related VPS10 domain containing receptor 2 (SORCS-2) in multivesicular-like structures, which apparently protects them from lysosomal degradation. Thus, impaired TrkB processing might contribute to disturbed motor function in PD.
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Affiliation(s)
- Thomas Andreska
- Institute of Clinical Neurobiology, University Hospital Wuerzburg, 97078 Wuerzburg, Germany
| | - Patrick Lüningschrör
- Institute of Clinical Neurobiology, University Hospital Wuerzburg, 97078 Wuerzburg, Germany
| | - Daniel Wolf
- Institute of Clinical Neurobiology, University Hospital Wuerzburg, 97078 Wuerzburg, Germany
| | - Rhonda L McFleder
- Department of Neurology, University Hospital Wuerzburg, 97080 Wuerzburg, Germany
| | - Maurilyn Ayon-Olivas
- Institute of Clinical Neurobiology, University Hospital Wuerzburg, 97078 Wuerzburg, Germany
| | - Marta Rattka
- Department of Neurology, University Hospital Wuerzburg, 97080 Wuerzburg, Germany
| | - Christine Drechsler
- Department of Microbiology, Biocenter, Julius-Maximilians-University Wuerzburg, 97074 Wuerzburg, Germany
| | - Veronika Perschin
- Imaging Core Facility of the Biocenter, Julius-Maximilians-University Wuerzburg, 97074 Wuerzburg, Germany
| | - Robert Blum
- Department of Neurology, University Hospital Wuerzburg, 97080 Wuerzburg, Germany
| | - Sarah Aufmkolk
- Department of Biotechnology and Biophysics, Julius-Maximilians-University Wuerzburg, 97074 Wuerzburg, Germany; Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
| | - Noelia Granado
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain; CIBERNED, Instituto de Salud Carlos III, 28002 Madrid, Spain
| | - Rosario Moratalla
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain; CIBERNED, Instituto de Salud Carlos III, 28002 Madrid, Spain
| | - Markus Sauer
- Department of Biotechnology and Biophysics, Julius-Maximilians-University Wuerzburg, 97074 Wuerzburg, Germany
| | - Camelia Monoranu
- Department for Neuropathology, Julius-Maximilians-University Wuerzburg, 97080 Wuerzburg, Germany
| | - Jens Volkmann
- Department of Neurology, University Hospital Wuerzburg, 97080 Wuerzburg, Germany
| | - Chi Wang Ip
- Department of Neurology, University Hospital Wuerzburg, 97080 Wuerzburg, Germany
| | - Christian Stigloher
- Imaging Core Facility of the Biocenter, Julius-Maximilians-University Wuerzburg, 97074 Wuerzburg, Germany
| | - Michael Sendtner
- Institute of Clinical Neurobiology, University Hospital Wuerzburg, 97078 Wuerzburg, Germany.
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3
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Florio E, Serra M, Lewis RG, Kramár E, Freidberg M, Wood M, Morelli M, Borrelli E. D2R signaling in striatal spiny neurons modulates L-DOPA induced dyskinesia. iScience 2022; 25:105263. [PMID: 36274959 PMCID: PMC9579025 DOI: 10.1016/j.isci.2022.105263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/19/2022] [Accepted: 09/25/2022] [Indexed: 11/07/2022] Open
Abstract
Degeneration of dopaminergic neurons leads to Parkinson’s disease (PD), characterized by reduced levels of striatal dopamine (DA) and impaired voluntary movements. DA replacement is achieved by levodopa treatment which in long-term causes involuntary movements or dyskinesia. Dyskinesia is linked to the pulsatile activation of D1 receptors of the striatal medium spiny neurons (MSNs) forming the direct output pathway (dMSNs). The contribution of DA stimulation of D2R in MSNs of the indirect pathway (iMSNs) is less clear. Using the 6-hydroxydopamine model of PD, here we show that loss of DA-mediated inhibition of these neurons intensifies levodopa-induced dyskinesia (LID) leading to reprogramming of striatal gene expression. We propose that the motor impairments characteristic of PD and of its therapy are critically dependent on D2R-mediated iMSNs activity. D2R signaling not only filters inputs to the striatum but also indirectly regulates dMSNs mediated responses. D2RKO in iMSNs increases L-DOPA-induced dyskinesia (LID) D2R signaling in iMSNs inhibits striatal gene and PD-associated genes Unopposed M1R signaling is responsible for the increased LID in iMSN-D2RKO mice Simultaneous modulation of M1R and M4R signaling on MSNs drastically reduces LID
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Affiliation(s)
- Ermanno Florio
- Department of Microbiology & Molecular Genetics, INSERM U1233, Center for Epigenetics and Metabolism, 308 Sprague Hall, University of California, Irvine, Irvine, CA 92697, USA
| | - Marcello Serra
- Department of Biomedical Sciences, Section of Neuroscience, University of Cagliari, Cittadella Universitaria di Monserrato, 09042 Monserrato (CA), Italy
| | - Robert G. Lewis
- Department of Microbiology & Molecular Genetics, INSERM U1233, Center for Epigenetics and Metabolism, 308 Sprague Hall, University of California, Irvine, Irvine, CA 92697, USA
| | - Enikö Kramár
- Department of Neurobiology and Behavior, University of California, Irvine, 200 Qureshey Research Lab., Irvine, CA 92697, USA
| | - Michael Freidberg
- Department of Chemistry, University of California, Irvine, 1102 Natural Sciences II, Irvine, CA 92697, USA
| | - Marcello Wood
- Department of Neurobiology and Behavior, University of California, Irvine, 200 Qureshey Research Lab., Irvine, CA 92697, USA
| | - Micaela Morelli
- Department of Biomedical Sciences, Section of Neuroscience, University of Cagliari, Cittadella Universitaria di Monserrato, 09042 Monserrato (CA), Italy
| | - Emiliana Borrelli
- Department of Microbiology & Molecular Genetics, INSERM U1233, Center for Epigenetics and Metabolism, 308 Sprague Hall, University of California, Irvine, Irvine, CA 92697, USA,Corresponding author
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4
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Paul SM, Yohn SE, Popiolek M, Miller AC, Felder CC. Muscarinic Acetylcholine Receptor Agonists as Novel Treatments for Schizophrenia. Am J Psychiatry 2022; 179:611-627. [PMID: 35758639 DOI: 10.1176/appi.ajp.21101083] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Schizophrenia remains a challenging disease to treat effectively with current antipsychotic medications due to their limited efficacy across the entire spectrum of core symptoms as well as their often burdensome side-effect profiles and poor tolerability. An unmet need remains for novel, mechanistically unique, and better tolerated therapeutic agents for treating schizophrenia, especially those that treat not only positive symptoms but also the negative and cognitive symptoms of the disease. Almost 25 years ago, the muscarinic acetylcholine receptor (mAChR) agonist xanomeline was reported to reduce psychotic symptoms and improve cognition in patients with Alzheimer's disease. The antipsychotic and procognitive properties of xanomeline were subsequently confirmed in a small study of acutely psychotic patients with chronic schizophrenia. These unexpected clinical findings have prompted considerable efforts across academia and industry to target mAChRs as a new approach to potentially treat schizophrenia and other psychotic disorders. The authors discuss recent advances in mAChR biology and pharmacology and the current understanding of the relative roles of the various mAChR subtypes, their downstream cellular effectors, and key neural circuits mediating the reduction in the core symptoms of schizophrenia in patients treated with xanomeline. They also provide an update on the status of novel mAChR agonists currently in development for potential treatment of schizophrenia and other neuropsychiatric disorders.
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5
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Malave L, Zuelke DR, Uribe-Cano S, Starikov L, Rebholz H, Friedman E, Qin C, Li Q, Bezard E, Kottmann AH. Dopaminergic co-transmission with sonic hedgehog inhibits abnormal involuntary movements in models of Parkinson's disease and L-Dopa induced dyskinesia. Commun Biol 2021; 4:1071. [PMID: 34552196 PMCID: PMC8458306 DOI: 10.1038/s42003-021-02567-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 08/17/2021] [Indexed: 01/06/2023] Open
Abstract
L-Dopa induced dyskinesia (LID) is a debilitating side effect of dopamine replacement therapy for Parkinson’s Disease. The mechanistic underpinnings of LID remain obscure. Here we report that diminished sonic hedgehog (Shh) signaling in the basal ganglia caused by the degeneration of midbrain dopamine neurons facilitates the formation and expression of LID. We find that the pharmacological activation of Smoothened, a downstream effector of Shh, attenuates LID in the neurotoxic 6-OHDA- and genetic aphakia mouse models of Parkinson’s Disease. Employing conditional genetic loss-of-function approaches, we show that reducing Shh secretion from dopamine neurons or Smoothened activity in cholinergic interneurons promotes LID. Conversely, the selective expression of constitutively active Smoothened in cholinergic interneurons is sufficient to render the sensitized aphakia model of Parkinson’s Disease resistant to LID. Furthermore, acute depletion of Shh from dopamine neurons through prolonged optogenetic stimulation in otherwise intact mice and in the absence of L-Dopa produces LID-like involuntary movements. These findings indicate that augmenting Shh signaling in the L-Dopa treated brain may be a promising therapeutic approach for mitigating the dyskinetic side effects of long-term treatment with L-Dopa. Lauren Malave et al. examine the impact of sonic hedgehog signaling in the dorsal striatum in L-Dopa induced dyskinesia (LID) animal models. Their results suggest that increasing sonic hedgehog signaling can reduce the severity of LID and abnormal involuntary movements, suggesting future therapeutic approaches to mitigate dyskinetic comorbidities of long-term treatment with L-Dopa.
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Affiliation(s)
- Lauren Malave
- Department of Molecular, Cellular and Biomedical Sciences, CUNY School of Medicine at City College of New York, City University of New York, New York, NY, USA.,City University of New York Graduate Center, Neuroscience Collaborative, New York, NY, USA.,Department of Psychiatry, Columbia University, New York, NY, USA
| | - Dustin R Zuelke
- Department of Molecular, Cellular and Biomedical Sciences, CUNY School of Medicine at City College of New York, City University of New York, New York, NY, USA.,City University of New York Graduate Center, Molecular, Cellular and Developmental Subprogram, New York, NY, USA
| | - Santiago Uribe-Cano
- Department of Molecular, Cellular and Biomedical Sciences, CUNY School of Medicine at City College of New York, City University of New York, New York, NY, USA.,City University of New York Graduate Center, Neuroscience Collaborative, New York, NY, USA
| | - Lev Starikov
- Department of Molecular, Cellular and Biomedical Sciences, CUNY School of Medicine at City College of New York, City University of New York, New York, NY, USA.,City University of New York Graduate Center, Molecular, Cellular and Developmental Subprogram, New York, NY, USA.,Blue Rock Therapeutics, Inc, New York, NY, USA
| | - Heike Rebholz
- Department of Molecular, Cellular and Biomedical Sciences, CUNY School of Medicine at City College of New York, City University of New York, New York, NY, USA.,GHU Psychiatrie et Neurosciences, Paris, France.,Institut de Psychiatrie et Neurosciences de Paris (IPNP), UMR S1266, INSERM, Universite de Paris, Paris, France.,Center of Neurodegeneration, Danube Private University, Krems, Austria
| | - Eitan Friedman
- Department of Molecular, Cellular and Biomedical Sciences, CUNY School of Medicine at City College of New York, City University of New York, New York, NY, USA.,City University of New York Graduate Center, Neuroscience Collaborative, New York, NY, USA.,City University of New York Graduate Center, Molecular, Cellular and Developmental Subprogram, New York, NY, USA
| | - Chuan Qin
- Institute of Laboratory Animal Sciences, China Academy of Medical Sciences, Beijing, People's Republic of China
| | - Qin Li
- Institute of Laboratory Animal Sciences, China Academy of Medical Sciences, Beijing, People's Republic of China.,Motac Neuroscience, Manchester, UK
| | - Erwan Bezard
- Institute of Laboratory Animal Sciences, China Academy of Medical Sciences, Beijing, People's Republic of China.,Motac Neuroscience, Manchester, UK.,Universite de Bordeaux, Institut des Maladies Neurodégénératives, UMR 5293, Bordeaux, France.,CNRS, Institut des Maladies Neurodégénératives, UMR 5293, Bordeaux, France
| | - Andreas H Kottmann
- Department of Molecular, Cellular and Biomedical Sciences, CUNY School of Medicine at City College of New York, City University of New York, New York, NY, USA. .,City University of New York Graduate Center, Neuroscience Collaborative, New York, NY, USA. .,City University of New York Graduate Center, Molecular, Cellular and Developmental Subprogram, New York, NY, USA.
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6
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Li J, Levin DS, Kim AJ, Pappas SS, Dauer WT. TorsinA restoration in a mouse model identifies a critical therapeutic window for DYT1 dystonia. J Clin Invest 2021; 131:139606. [PMID: 33529159 DOI: 10.1172/jci139606] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 01/27/2021] [Indexed: 12/18/2022] Open
Abstract
In inherited neurodevelopmental diseases, pathogenic processes unique to critical periods during early brain development may preclude the effectiveness of gene modification therapies applied later in life. We explored this question in a mouse model of DYT1 dystonia, a neurodevelopmental disease caused by a loss-of-function mutation in the TOR1A gene encoding torsinA. To define the temporal requirements for torsinA in normal motor function and gene replacement therapy, we developed a mouse line enabling spatiotemporal control of the endogenous torsinA allele. Suppressing torsinA during embryogenesis caused dystonia-mimicking behavioral and neuropathological phenotypes. Suppressing torsinA during adulthood, however, elicited no discernible abnormalities, establishing an essential requirement for torsinA during a developmental critical period. The developing CNS exhibited a parallel "therapeutic critical period" for torsinA repletion. Although restoring torsinA in juvenile DYT1 mice rescued motor phenotypes, there was no benefit from adult torsinA repletion. These data establish a unique requirement for torsinA in the developing nervous system and demonstrate that the critical period genetic insult provokes permanent pathophysiology mechanistically delinked from torsinA function. These findings imply that to be effective, torsinA-based therapeutic strategies must be employed early in the course of DYT1 dystonia.
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Affiliation(s)
- Jay Li
- Medical Scientist Training Program.,Cellular and Molecular Biology Graduate Program
| | - Daniel S Levin
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA
| | | | - Samuel S Pappas
- Peter O'Donnell Jr. Brain Institute.,Department of Neurology
| | - William T Dauer
- Peter O'Donnell Jr. Brain Institute.,Department of Neurology.,Department of Neuroscience, University of Texas Southwestern Medical Center, Dallas, Texas, USA
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7
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Regulation of TrkB cell surface expression-a mechanism for modulation of neuronal responsiveness to brain-derived neurotrophic factor. Cell Tissue Res 2020; 382:5-14. [PMID: 32556728 PMCID: PMC7529634 DOI: 10.1007/s00441-020-03224-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 04/27/2020] [Indexed: 12/27/2022]
Abstract
Neurotrophin signaling via receptor tyrosine kinases is essential for the development and function of the nervous system in vertebrates. TrkB activation and signaling show substantial differences to other receptor tyrosine kinases of the Trk family that mediate the responses to nerve growth factor and neurotrophin-3. Growing evidence suggests that TrkB cell surface expression is highly regulated and determines the sensitivity of neurons to brain-derived neurotrophic factor (BDNF). This translocation of TrkB depends on co-factors and modulators of cAMP levels, N-glycosylation, and receptor transactivation. This process can occur in very short time periods and the resulting rapid modulation of target cell sensitivity to BDNF could represent a mechanism for fine-tuning of synaptic plasticity and communication in complex neuronal networks. This review focuses on those modulatory mechanisms in neurons that regulate responsiveness to BDNF via control of TrkB surface expression.
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8
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Augustin SM, Chancey JH, Lovinger DM. Dual Dopaminergic Regulation of Corticostriatal Plasticity by Cholinergic Interneurons and Indirect Pathway Medium Spiny Neurons. Cell Rep 2019; 24:2883-2893. [PMID: 30208314 DOI: 10.1016/j.celrep.2018.08.042] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 07/05/2018] [Accepted: 08/15/2018] [Indexed: 01/04/2023] Open
Abstract
Endocannabinoid (eCB)-mediated long-term depression (LTD) requires dopamine (DA) D2 receptors (D2Rs) for eCB mobilization. The cellular locus of the D2Rs involved in LTD induction remains highly debated. We directly examined the role in LTD induction of D2Rs expressed by striatal cholinergic interneurons (Chls) and indirect pathway medium spiny neurons (iMSNs) using neuron-specific targeted deletion of D2Rs. Deletion of Chl-D2Rs (Chl-Drd2KO) impaired LTD induction in both subtypes of MSNs. LTD induction was restored in the Chl-Drd2KO mice by an M1-selective muscarinic acetylcholine receptor antagonist. In contrast, after the deletion of iMSN-D2Rs (iMSN-Drd2KO), LTD induction was intact in MSNs. Separate interrogation of direct pathway and iMSNs revealed a deficit in LTD induction only at synapses onto iMSNs that lack D2Rs. LTD induction in iMSNs was restored by D2R agonist application. Our findings suggest that Chl D2Rs strongly modulate LTD induction in MSNs, with iMSN-D2Rs having a weaker, iMSN-specific, modulatory effect.
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Affiliation(s)
- Shana M Augustin
- Laboratory for Integrative Neuroscience, National Institute on Alcohol Abuse and Alcoholism, NIH, Rockville, MD 20852, USA
| | - Jessica H Chancey
- Laboratory for Integrative Neuroscience, National Institute on Alcohol Abuse and Alcoholism, NIH, Rockville, MD 20852, USA
| | - David M Lovinger
- Laboratory for Integrative Neuroscience, National Institute on Alcohol Abuse and Alcoholism, NIH, Rockville, MD 20852, USA.
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9
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Delamarre A, Tison F, Li Q, Galitzky M, Rascol O, Bezard E, Meissner WG. Assessment of plasma creatine kinase as biomarker for levodopa-induced dyskinesia in Parkinson's disease. J Neural Transm (Vienna) 2019; 126:789-793. [PMID: 31098725 DOI: 10.1007/s00702-019-02015-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 05/11/2019] [Indexed: 10/26/2022]
Abstract
We tested in a translational approach the usefulness of plasma creatine kinase (CK) as an objective biomarker for levodopa-induced dyskinesia (LID). Plasma CK levels were measured in five dyskinetic parkinsonian non-human primates (NHP) and in ten PD patients with LID who participated in a treatment trial with simvastatin. Plasma CK levels were increased in dyskinetic NHP and correlated with LID severity while they were not affected by LID severity in PD patients.
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Affiliation(s)
- Anna Delamarre
- Service de Neurologie, Hôpital Pellegrin, CHU de Bordeaux, 33000, Bordeaux, France.,Institut des Maladies Neurodégénératives, Université de Bordeaux, UMR 5293, 146 rue Léo Saignat, 33000, Bordeaux Cedex, France.,CNRS, Institut des Maladies Neurodégénératives, UMR 5293, 33000, Bordeaux, France
| | - François Tison
- Service de Neurologie, Hôpital Pellegrin, CHU de Bordeaux, 33000, Bordeaux, France.,Institut des Maladies Neurodégénératives, Université de Bordeaux, UMR 5293, 146 rue Léo Saignat, 33000, Bordeaux Cedex, France.,CNRS, Institut des Maladies Neurodégénératives, UMR 5293, 33000, Bordeaux, France
| | - Qin Li
- Institute of Laboratory Animal Sciences, China Academy of Medical Sciences, Beijing, China.,Motac Neuroscience, Manchester, UK
| | | | - Olivier Rascol
- CIC Toulouse, Toulouse, France.,Départements de Pharmacologie Clinique et Neurosciences, INSERM CIC9302, CHU de Toulouse, Toulouse, France.,Service de Pharmacologie, Faculté de Médecine, CHU de Toulouse, Université de Toulouse, Toulouse, France
| | - Erwan Bezard
- Service de Neurologie, Hôpital Pellegrin, CHU de Bordeaux, 33000, Bordeaux, France.,Institut des Maladies Neurodégénératives, Université de Bordeaux, UMR 5293, 146 rue Léo Saignat, 33000, Bordeaux Cedex, France.,CNRS, Institut des Maladies Neurodégénératives, UMR 5293, 33000, Bordeaux, France.,Institute of Laboratory Animal Sciences, China Academy of Medical Sciences, Beijing, China.,Motac Neuroscience, Manchester, UK
| | - Wassilios G Meissner
- Service de Neurologie, Hôpital Pellegrin, CHU de Bordeaux, 33000, Bordeaux, France. .,Institut des Maladies Neurodégénératives, Université de Bordeaux, UMR 5293, 146 rue Léo Saignat, 33000, Bordeaux Cedex, France. .,CNRS, Institut des Maladies Neurodégénératives, UMR 5293, 33000, Bordeaux, France. .,Department Medicine, University of Otago, Christchurch, New Zealand. .,New Zealand Brain Research Institute, Christchurch, New Zealand.
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10
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Dopaminergic modulation of striatal function and Parkinson's disease. J Neural Transm (Vienna) 2019; 126:411-422. [PMID: 30937538 DOI: 10.1007/s00702-019-01997-y] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 03/20/2019] [Indexed: 01/24/2023]
Abstract
The striatum is richly innervated by mesencephalic dopaminergic neurons that modulate a diverse array of cellular and synaptic functions that control goal-directed actions and habits. The loss of this innervation has long been thought to be the principal cause of the cardinal motor symptoms of Parkinson's disease (PD). Moreover, chronic, pharmacological overstimulation of striatal dopamine (DA) receptors is generally viewed as the trigger for levodopa-induced dyskinesia (LID) in late-stage PD patients. Here, we discuss recent advances in our understanding of the relationship between the striatum and DA, particularly as it relates to PD and LID. First, it has become clear that chronic perturbations of DA levels in PD and LID bring about cell type-specific, homeostatic changes in spiny projection neurons (SPNs) that tend to normalize striatal activity. Second, perturbations in DA signaling also bring about non-homeostatic aberrations in synaptic plasticity that contribute to disease symptoms. Third, it has become evident that striatal interneurons are major determinants of network activity and behavior in PD and LID. Finally, recent work examining the activity of SPNs in freely moving animals has revealed that the pathophysiology induced by altered DA signaling is not limited to imbalance in the average spiking in direct and indirect pathways, but involves more nuanced disruptions of neuronal ensemble activity.
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11
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Thorn CA, Moon J, Bourbonais CA, Harms J, Edgerton JR, Stark E, Steyn SJ, Butter CR, Lazzaro JT, O’Connor RE, Popiolek M. Striatal, Hippocampal, and Cortical Networks Are Differentially Responsive to the M4- and M1-Muscarinic Acetylcholine Receptor Mediated Effects of Xanomeline. ACS Chem Neurosci 2019; 10:1753-1764. [PMID: 30480428 DOI: 10.1021/acschemneuro.8b00625] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Preclinical and clinical data suggest that muscarinic acetylcholine receptor activation may be therapeutically beneficial for the treatment of schizophrenia and Alzheimer's diseases. This is best exemplified by clinical observations with xanomeline, the efficacy of which is thought to be mediated through co-activation of the M1 and M4 muscarinic acetylcholine receptors (mAChRs). Here we examined the impact of treatment with xanomeline and compared it to the actions of selective M1 and M4 mAChR activators on in vivo intracellular signaling cascades in mice, including 3'-5'-cyclic adenosine monophosphate response element binding protein (CREB) phosphorylation and inositol phosphate-1 (IP1) accumulation in the striatum, hippocampus, and prefrontal cortex. We additionally assessed the effects of xanomeline on hippocampal electrophysiological signatures in rats using ex vivo recordings from CA1 (Cornu Ammonis 1) as well as in vivo hippocampal theta. As expected, xanomeline's effects across these readouts were consistent with activation of both M1 and M4 mAChRs; however, differences were observed across different brain regions, suggesting non-uniform activation of these receptor subtypes in the central nervous system. Interestingly, despite having nearly equal in vitro potency at the M1 and the M4 mAChRs, during in vivo assays xanomeline produced M4-like effects at significantly lower brain exposures than those at which M1-like effects were observed. Our results raise the possibility that clinical efficacy observed with xanomeline was driven, in part, through its non-uniform activation of mAChR subtypes in the central nervous system and, at lower doses, through preferential agonism of the M4 mAChR.
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Affiliation(s)
| | | | | | | | | | | | | | | | - John T. Lazzaro
- Primary Pharmacology Group, Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
| | - Rebecca E. O’Connor
- Primary Pharmacology Group, Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
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12
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Ho H, Both MD, Siniard A, Sharma S, Notwell JH, Wallace M, Leone DP, Nguyen A, Zhao E, Lee H, Zwilling D, Thompson KR, Braithwaite SP, Huentelman M, Portmann T. A Guide to Single-Cell Transcriptomics in Adult Rodent Brain: The Medium Spiny Neuron Transcriptome Revisited. Front Cell Neurosci 2018; 12:159. [PMID: 29970990 PMCID: PMC6018757 DOI: 10.3389/fncel.2018.00159] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 05/22/2018] [Indexed: 01/05/2023] Open
Abstract
Recent advances in single-cell technologies are paving the way to a comprehensive understanding of the cellular complexity in the brain. Protocols for single-cell transcriptomics combine a variety of sophisticated methods for the purpose of isolating the heavily interconnected and heterogeneous neuronal cell types in a relatively intact and healthy state. The emphasis of single-cell transcriptome studies has thus far been on comparing library generation and sequencing techniques that enable measurement of the minute amounts of starting material from a single cell. However, in order for data to be comparable, standardized cell isolation techniques are essential. Here, we analyzed and simplified methods for the different steps critically involved in single-cell isolation from brain. These include enzymatic digestion, tissue trituration, improved methods for efficient fluorescence-activated cell sorting in samples containing high degree of debris from the neuropil, and finally, highly region-specific cellular labeling compatible with use of stereotaxic coordinates. The methods are exemplified using medium spiny neurons (MSN) from dorsomedial striatum, a cell type that is clinically relevant for disorders of the basal ganglia, including psychiatric and neurodegenerative diseases. We present single-cell RNA sequencing (scRNA-Seq) data from D1 and D2 dopamine receptor expressing MSN subtypes. We illustrate the need for single-cell resolution by comparing to available population-based gene expression data of striatal MSN subtypes. Our findings contribute toward standardizing important steps of single-cell isolation from adult brain tissue to increase comparability of data. Furthermore, our data redefine the transcriptome of MSNs at unprecedented resolution by confirming established marker genes, resolving inconsistencies from previous gene expression studies, and identifying novel subtype-specific marker genes in this important cell type.
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Affiliation(s)
- Hanson Ho
- Circuit Therapeutics, Inc., Menlo Park, CA, United States
| | - Matt De Both
- Neurogenomics Division, Translational Genomics Research Institute, Phoenix, AZ, United States
| | - Ashley Siniard
- Neurogenomics Division, Translational Genomics Research Institute, Phoenix, AZ, United States
| | - Sasha Sharma
- Circuit Therapeutics, Inc., Menlo Park, CA, United States
| | | | | | - Dino P Leone
- Circuit Therapeutics, Inc., Menlo Park, CA, United States
| | - Amy Nguyen
- Circuit Therapeutics, Inc., Menlo Park, CA, United States
| | - Eric Zhao
- Circuit Therapeutics, Inc., Menlo Park, CA, United States
| | - Hannah Lee
- Circuit Therapeutics, Inc., Menlo Park, CA, United States
| | | | | | | | - Matthew Huentelman
- Neurogenomics Division, Translational Genomics Research Institute, Phoenix, AZ, United States
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13
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Roeper J. Closing gaps in brain disease-from overlapping genetic architecture to common motifs of synapse dysfunction. Curr Opin Neurobiol 2017; 48:45-51. [PMID: 28968515 DOI: 10.1016/j.conb.2017.09.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 09/11/2017] [Indexed: 10/18/2022]
Abstract
Recent progress in the synaptic pathophysiology of brain diseases is reviewed. To emphasize the emergence of common motifs in synapse dysfunctions across neurodevelopmental, psychiatric and neurological disorders, conventional clinical boundaries are disregarded and a decidedly trans-diagnostic, potentially unifying view of altered synapse function is promoted. Based on the overlapping genetic architecture of brain disorders, which often converges on genes related to synaptic functions, disease-related changes in basic pre-synaptic and post-synaptic communication, neuromodulation-gated changes in Hebbian plasticity, dynamic interactions between Hebbian and homeostatic plasticity, and changes in synaptic maintenance by autophagy and glial-mediated phagocytosis are highlighted.
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Affiliation(s)
- Jochen Roeper
- Institute of Neurophysiology, Goethe University, Frankfurt, Germany.
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14
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Foster DJ, Conn PJ. Allosteric Modulation of GPCRs: New Insights and Potential Utility for Treatment of Schizophrenia and Other CNS Disorders. Neuron 2017; 94:431-446. [PMID: 28472649 DOI: 10.1016/j.neuron.2017.03.016] [Citation(s) in RCA: 159] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 03/02/2017] [Accepted: 03/09/2017] [Indexed: 01/11/2023]
Abstract
G-protein-coupled receptors (GPCRs) play critical roles in regulating brain function. Recent advances have greatly expanded our understanding of these receptors as complex signaling machines that can adopt numerous conformations and modulate multiple downstream signaling pathways. While agonists and antagonists have traditionally been pursued to target GPCRs, allosteric modulators provide several mechanistic advantages, including the ability to distinguish between closely related receptor subtypes. Recently, the discovery of allosteric ligands that confer bias and modulate some, but not all, of a given receptor's downstream signaling pathways can provide pharmacological modulation of brain circuitry with remarkable precision. In addition, allosteric modulators with unprecedented specificity have been developed that can differentiate between subpopulations of a given receptor subtype based on the receptor's dimerization state. These advances are not only providing insight into the biological roles of specific receptor populations, but hold great promise for treating numerous CNS disorders.
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Affiliation(s)
- Daniel J Foster
- Department of Pharmacology, Vanderbilt University, Nashville, TN 37232, USA; Vanderbilt Center for Neuroscience Drug Discovery, Vanderbilt University, Nashville, TN 37232, USA
| | - P Jeffrey Conn
- Department of Pharmacology, Vanderbilt University, Nashville, TN 37232, USA; Vanderbilt Center for Neuroscience Drug Discovery, Vanderbilt University, Nashville, TN 37232, USA.
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15
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Leinartaité L, Svenningsson P. Folding Underlies Bidirectional Role of GPR37/Pael-R in Parkinson Disease. Trends Pharmacol Sci 2017. [PMID: 28629580 DOI: 10.1016/j.tips.2017.05.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Since conformational flexibility, which is required for the function of a protein, comes at the expense of structural stability, many proteins, including G-protein-coupled receptors (GPCRs), are under constant risk of misfolding and aggregation. In this regard GPR37 (also named PAEL-R and ETBR-LP-1) takes a prominent role, particularly in relation to Parkinson disease (PD). GPR37 is a substrate for parkin and accumulates abnormally in autosomal recessive juvenile parkinsonism, contributing to endoplasmic reticulum stress and death of dopaminergic neurons. GPR37 also constitutes a core structure of Lewy bodies, demonstrating a more general involvement in PD pathology. However, if folded and matured properly, GPR37 seems to be neuroprotective. Moreover, GPR37 modulates functionality of the dopamine transporter and the dopamine D2 receptor and stimulates dopamine neurotransmission. Here we review the multiple roles of GPR37 with relevance to potential disease modification and symptomatic therapies of PD and highlight unsolved issues in this field.
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Affiliation(s)
- Lina Leinartaité
- Department of Clinical Neuroscience, Center for Molecular Medicine, Karolinska Institutet, SE-171 76, Stockholm, Sweden.
| | - Per Svenningsson
- Department of Clinical Neuroscience, Center for Molecular Medicine, Karolinska Institutet, SE-171 76, Stockholm, Sweden.
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16
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Alcacer C, Andreoli L, Sebastianutto I, Jakobsson J, Fieblinger T, Cenci MA. Chemogenetic stimulation of striatal projection neurons modulates responses to Parkinson's disease therapy. J Clin Invest 2017; 127:720-734. [PMID: 28112685 DOI: 10.1172/jci90132] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Accepted: 11/22/2016] [Indexed: 01/14/2023] Open
Abstract
Parkinson's disease (PD) patients experience loss of normal motor function (hypokinesia), but can develop uncontrollable movements known as dyskinesia upon treatment with L-DOPA. Poverty or excess of movement in PD has been attributed to overactivity of striatal projection neurons forming either the indirect (iSPNs) or the direct (dSPNs) pathway, respectively. Here, we investigated the two pathways' contribution to different motor features using SPN type-specific chemogenetic stimulation in rodent models of PD (PD mice) and L-DOPA-induced dyskinesia (LID mice). Using the activatory Gq-coupled human M3 muscarinic receptor (hM3Dq), we found that chemogenetic stimulation of dSPNs mimicked, while stimulation of iSPNs abolished the therapeutic action of L-DOPA in PD mice. In LID mice, hM3Dq stimulation of dSPNs exacerbated dyskinetic responses to L-DOPA, while stimulation of iSPNs inhibited these responses. In the absence of L-DOPA, only chemogenetic stimulation of dSPNs mediated through the Gs-coupled modified rat muscarinic M3 receptor (rM3Ds) induced appreciable dyskinesia in PD mice. Combining D2 receptor agonist treatment with rM3Ds-dSPN stimulation reproduced all symptoms of LID. These results demonstrate that dSPNs and iSPNs oppositely modulate both therapeutic and dyskinetic responses to dopamine replacement therapy in PD. We also show that chemogenetic stimulation of different signaling pathways in dSPNs leads to markedly different motor outcomes. Our findings have important implications for the design of effective antiparkinsonian and antidyskinetic drug therapies.
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MESH Headings
- Animals
- Humans
- Levodopa/adverse effects
- Levodopa/pharmacology
- Mice
- Mice, Transgenic
- Neural Pathways/metabolism
- Neural Pathways/pathology
- Neurons/metabolism
- Neurons/pathology
- Parkinson Disease, Secondary/chemically induced
- Parkinson Disease, Secondary/drug therapy
- Parkinson Disease, Secondary/metabolism
- Parkinson Disease, Secondary/pathology
- Rats
- Receptor, Muscarinic M3/agonists
- Receptor, Muscarinic M3/genetics
- Receptor, Muscarinic M3/metabolism
- Receptors, Dopamine D2/agonists
- Receptors, Dopamine D2/genetics
- Receptors, Dopamine D2/metabolism
- Visual Cortex/metabolism
- Visual Cortex/pathology
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