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de Matos LO, de Araujo Lima Reis AL, Lopes Guerra LT, de Oliveira Guarnieri L, Moraes MA, Arabe LB, de Souza RP, Pereira GS, Souza BR. Early postnatal l-Dopa treatment causes behavioral alterations in female vs. male young adult Swiss mice. Neuropharmacology 2020; 170:108047. [DOI: 10.1016/j.neuropharm.2020.108047] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 01/28/2020] [Accepted: 03/08/2020] [Indexed: 01/21/2023]
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de Souza Lima ACM, de Alvarenga KAF, Codo BC, Sacramento EK, Rosa DVF, Souza RP, Romano-Silva MA, Souza BR. Impairment of motor but not anxiety-like behavior caused by the increase of dopamine during development is sustained in zebrafish larvae at later stages. Int J Dev Neurosci 2020; 80:106-122. [PMID: 31990423 DOI: 10.1002/jdn.10009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 01/07/2020] [Indexed: 11/08/2022] Open
Abstract
Many neuropsychiatric disorders are associated with both dopaminergic (DAergic) and developmental hypotheses. Since DAergic receptors are expressed in the developing brain, it is possible that alterations in dopamine (DA) signaling may impair brain development and consequent behavior. In our previous study, using a zebrafish model, we showed that an increase of DA during the 3 to 5 days postfertilization (dpf) developmental window (an important window for GABAergic neuronal differentiation) affects the motor behavior of 5 dpf larvae. In this study, we set out to determine whether these behavioral alterations were sustained in larvae at older stages (7 and 14 dpf). To test this hypothesis, we chronically treated zebrafish larvae from 3 to 5 dpf with DA. After washing the drug, we recorded and analyzed the first 5 and 30 min of the motor behavior of 5, 7, and 14 dpf subjects. We analyzed mobile episodes, distance traveled, time mobile, distance traveled per mobile episode, time in movement per mobile episode, and distance traveled per time mobile. We showed, once again, that an increase of DA during the 3 to 5 dpf developmental window reduces the number of movement episodes initiated by 5 dpf larvae. We also detected a decrease of other motor behavior parameters in 5 dpf DA-treated larvae. We observed that these alterations are sustained in the 7 dpf larvae. However, we did not see these general locomotor alterations in the 14 dpf larvae. Moreover, we detected a decrease of distance traveled and an increase of time of locomotion per episode in the first 5 min of behavioral analyses in 14 dpf DA-treated larvae. To test if the alterations in the first 5 min were due to anxiety-like behavior, we used a light/dark preference paradigm. We recorded 5dpf, 7dpf, and 14dpf larvae for 5 min and analyzed time of freezing, preference for light or dark, number of entries to the dark, percentage of time in the light. We observed that 5dpf larvae treated with DA showed more freezing, less passages to the dark, and more time spent in the light as compared to their control counterparts. But 7dpf and 14dpf larvae did not show these alterations. Taken overall, therefore, our results suggest that DA does play a role in the development of zebrafish motor behavior, and, furthermore, that some behaviors are more sensitive than others to the effects of DAergic imbalances during development.
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Affiliation(s)
| | - Kevin Augusto Farias de Alvarenga
- Laboratório de Neurociências and Centro de Tecnologia em Medicina Molecular, Department of Mental Health, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Beatriz Campos Codo
- Núcleo de Neurociências, Department of Physiology and Biophysics, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Erika Kelmer Sacramento
- Laboratório de Neurociências and Centro de Tecnologia em Medicina Molecular, Department of Mental Health, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Daniela Valadão Freitas Rosa
- Laboratório de Neurociências and Centro de Tecnologia em Medicina Molecular, Department of Mental Health, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Renan Pedra Souza
- Department of Genetics, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Marco Aurélio Romano-Silva
- Laboratório de Neurociências and Centro de Tecnologia em Medicina Molecular, Department of Mental Health, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Bruno Rezende Souza
- Núcleo de Neurociências, Department of Physiology and Biophysics, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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Nakamura TY, Nakao S, Wakabayashi S. Emerging Roles of Neuronal Ca 2+ Sensor-1 in Cardiac and Neuronal Tissues: A Mini Review. Front Mol Neurosci 2019; 12:56. [PMID: 30886571 PMCID: PMC6409499 DOI: 10.3389/fnmol.2019.00056] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 02/15/2019] [Indexed: 11/13/2022] Open
Abstract
The EF-hand calcium (Ca2+)-binding protein, neuronal Ca2+ sensor-1 (NCS-1/frequenin), is predominantly expressed in neuronal tissues and plays a crucial role in neuronal functions, including synaptic transmission and plasticity. NCS-1 has diverse functional roles, as elucidated in the past 15 years, which include the regulation of phosphatidylinositol 4-kinase IIIβ (PI-4K-β) and several ion channels such as voltage-gated K+ and Ca2+ channels, the D2 dopamine receptors, and inositol 1,4,5-trisphosphate receptors (InsP3Rs). Functional analyses demonstrated that NCS-1 enhances exocytosis and neuronal survival after injury, as well as promotes learning and memory in mice. NCS-1 is also expressed in the heart including the Purkinje fibers (PFs) of the conduction system. NCS-1 interacts with KV4 K+ channels together with dipeptidyl peptidase-like protein-6 (DPP-6), and this macromolecule then composes the transient outward current in PFs and contributes to the repolarization of PF action potential, thus being responsible for idiopathic arrhythmia. Moreover, NCS-1 expression was reported to be significantly high at the immature stage and at hypertrophy in adults. That report demonstrated that NCS-1 positively regulates cardiac contraction in immature hearts by increasing intracellular Ca2+ signals through interaction with InsP3Rs. With the related signals, NCS-1 activates nuclear Ca2+ signals, which would be a mechanism underlying hormone-induced cardiac hypertrophy. Furthermore, NCS-1 contributes to stress tolerance in cardiomyocytes by activating mitochondrial detoxification pathways, with a key role in Ca2+-dependent pathways. In this review, we will discuss recent findings supporting the functional significance of NCS-1 in the brain and heart and will address possible underlying molecular mechanisms.
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Affiliation(s)
- Tomoe Y Nakamura
- Department of Molecular Physiology, National Cerebral and Cardiovascular Center Research Institute, Suita, Japan
| | - Shu Nakao
- Department of Molecular Physiology, National Cerebral and Cardiovascular Center Research Institute, Suita, Japan.,Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University, Kusatsu, Japan
| | - Shigeo Wakabayashi
- Department of Molecular Physiology, National Cerebral and Cardiovascular Center Research Institute, Suita, Japan.,Department of Pharmacology, Osaka Medical College, Takatsuki, Japan
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Hernandez G, Mahmoudi S, Cyr M, Diaz J, Blanchet PJ, Lévesque D. Tardive dyskinesia is associated with altered putamen Akt/GSK‐3β signaling in nonhuman primates. Mov Disord 2019; 34:717-726. [DOI: 10.1002/mds.27630] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 12/22/2018] [Accepted: 01/07/2019] [Indexed: 12/19/2022] Open
Affiliation(s)
| | - Souha Mahmoudi
- Faculté de PharmacieUniversité de Montréal Montréal Quebec Canada
| | - Michel Cyr
- Groupe de Recherche en Signalisation Moléculaire, Dép. de Biologie MédicaleUniversité du Québec à Trois‐Rivières Trois‐Rivières Quebec Canada
| | - Jorge Diaz
- INSERM U894, Centre de Psychiatrie et NeurosciencesUniversité Paris Descartes Paris France
| | - Pierre J. Blanchet
- Dép. de Stomatologie, Faculté de Médecine DentaireUniversité de Montréal Montréal Quebec Canada
| | - Daniel Lévesque
- Faculté de PharmacieUniversité de Montréal Montréal Quebec Canada
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de Matos LO, Reis ALDAL, Guerra LTL, Guarnieri LDO, Moraes MA, Aquino NSS, Szawka RE, Pereira GS, Souza BR. l-Dopa treatment during perinatal development leads to different behavioral alterations in female vs. male juvenile Swiss mice. Pharmacol Biochem Behav 2018; 173:1-14. [DOI: 10.1016/j.pbb.2018.08.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 07/25/2018] [Accepted: 08/06/2018] [Indexed: 12/26/2022]
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Boeckel GR, Ehrlich BE. NCS-1 is a regulator of calcium signaling in health and disease. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2018; 1865:1660-1667. [PMID: 29746899 DOI: 10.1016/j.bbamcr.2018.05.005] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 05/02/2018] [Accepted: 05/04/2018] [Indexed: 02/07/2023]
Abstract
Neuronal Calcium Sensor-1 (NCS-1) is a highly conserved calcium binding protein which contributes to the maintenance of intracellular calcium homeostasis and regulation of calcium-dependent signaling pathways. It is involved in a variety of physiological cell functions, including exocytosis, regulation of calcium permeable channels, neuroplasticity and response to neuronal damage. Over the past 30 years, continuing investigation of cellular functions of NCS-1 and associated disease states have highlighted its function in the pathophysiology of several disorders and as a therapeutic target. Among the diseases that were found to be associated with NCS-1 are neurological disorders such as bipolar disease and non-neurological conditions such as breast cancer. Furthermore, alteration of NCS-1 expression is associated with substance abuse disorders and severe side effects of chemotherapeutic agents. The objective of this article is to summarize the current body of evidence describing NCS-1 and its interactions on a molecular and cellular scale, as well as describing macroscopic implications in physiology and medicine. Particular attention is paid to the role of NCS-1 in development and prevention of chemotherapy induced peripheral neuropathy (CIPN).
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Affiliation(s)
- Göran R Boeckel
- Department of Pharmacology, Yale University, New Haven, CT, United States; Institut für Physiologie, Universität zu Lübeck, Ratzeburger Allee 160, D-23562 Lübeck, Germany
| | - Barbara E Ehrlich
- Department of Pharmacology, Yale University, New Haven, CT, United States; Institut für Physiologie, Universität zu Lübeck, Ratzeburger Allee 160, D-23562 Lübeck, Germany.
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Nishi A, Shuto T. Potential for targeting dopamine/DARPP-32 signaling in neuropsychiatric and neurodegenerative disorders. Expert Opin Ther Targets 2017; 21:259-272. [PMID: 28052701 DOI: 10.1080/14728222.2017.1279149] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Alterations in dopamine neurotransmission has been implicated in pathophysiology of neuropsychiatric and neurodegenerative disorders, and DARPP-32 plays a pivotal role in dopamine neurotransmission. DARPP-32 likely influences dopamine-mediated behaviors in animal models of neuropsychiatric and neurodegenerative disorders and therapeutic effects of pharmacological treatment. Areas covered: We will review animal studies on the biochemical and behavioral roles of DARPP-32 in drug addiction, schizophrenia and Parkinson's disease. In general, under physiological and pathophysiological conditions, DARPP-32 in D1 receptor expressing (D1R) -medium spiny neurons (MSNs) promotes dopamine/D1 receptor/PKA signaling, whereas DARPP-32 in D2 receptor expressing (D2R)-MSNs counteracts dopamine/D2 receptor signaling. However, the function of DARPP-32 is differentially regulated in acute and chronic phases of drug addiction; DARPP-32 enhances D1 receptor/PKA signaling in the acute phase, whereas DARPP-32 suppresses D1 receptor/PKA signaling in the chronic phase through homeostatic mechanisms. Therefore, DARPP-32 plays a bidirectional role in dopamine neurotransmission, depending on the cell type and experimental conditions, and is involved in dopamine-related behavioral abnormalities. Expert opinion: DARPP-32 differentially regulates dopamine signaling in D1R- and D2R-MSNs, and a shift of balance between D1R- and D2R-MSN function is associated with behavioral abnormalities. An adjustment of this imbalance is achieved by therapeutic approaches targeting DARPP-32-related signaling molecules.
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Affiliation(s)
- Akinori Nishi
- a Department of Pharmacology , Kurume University School of Medicine , Kurume, Fukuoka , Japan
| | - Takahide Shuto
- a Department of Pharmacology , Kurume University School of Medicine , Kurume, Fukuoka , Japan
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Kedracka-Krok S, Swiderska B, Jankowska U, Skupien-Rabian B, Solich J, Dziedzicka-Wasylewska M. Stathmin reduction and cytoskeleton rearrangement in rat nucleus accumbens in response to clozapine and risperidone treatment - Comparative proteomic study. Neuroscience 2015; 316:63-81. [PMID: 26708747 DOI: 10.1016/j.neuroscience.2015.12.028] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Revised: 12/02/2015] [Accepted: 12/14/2015] [Indexed: 11/17/2022]
Abstract
The complex network of anatomical connections of the nucleus accumbens (NAc) makes it an interface responsible for the selection and integration of cognitive and affective information to modulate appetitive or aversively motivated behaviour. There is evidence for NAc dysfunction in schizophrenia. NAc also seems to be important for antipsychotic drug action, but the biochemical characteristics of drug-induced alterations within NAc remain incompletely characterized. In this study, a comprehensive proteomic analysis was performed to describe the differences in the mechanisms of action of clozapine (CLO) and risperidone (RIS) in the rat NAc. Both antipsychotics influenced the level of microtubule-regulating proteins, i.e., stathmin, and proteins of the collapsin response mediator protein family (CRMPs), and only CLO affected NAD-dependent protein deacetylase sirtuin-2 and septin 6. Both antipsychotics induced changes in levels of other cytoskeleton-related proteins. CLO exclusively up-regulated proteins involved in neuroprotection, such as glutathione synthetase, heat-shock 70-kDa protein 8 and mitochondrial heat-shock protein 75. RIS tuned cell function by changing the pattern of post-translational modifications of some proteins: it down-regulated the phosphorylated forms of stathmin and dopamine and the cyclic AMP-regulated phosphoprotein (DARPP-32) isoform but up-regulated cyclin-dependent kinase 5 (Cdk5). RIS modulated the level and phosphorylation state of synaptic proteins: synapsin-2, synaptotagmin-1 and adaptor-related protein-2 (AP-2) complex.
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Affiliation(s)
- S Kedracka-Krok
- Department of Physical Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland; Department of Structural Biology, Malopolska Centre of Biotechnology, Jagiellonian University, Krakow, Poland.
| | - B Swiderska
- Department of Physical Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - U Jankowska
- Department of Structural Biology, Malopolska Centre of Biotechnology, Jagiellonian University, Krakow, Poland
| | - B Skupien-Rabian
- Department of Physical Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - J Solich
- Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - M Dziedzicka-Wasylewska
- Department of Physical Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland; Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
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Carboni L, Domenici E. Proteome effects of antipsychotic drugs: Learning from preclinical models. Proteomics Clin Appl 2015; 10:430-41. [PMID: 26548651 DOI: 10.1002/prca.201500087] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 10/27/2015] [Accepted: 11/03/2015] [Indexed: 02/02/2023]
Abstract
Proteome-wide expression analyses are performed in the brain of schizophrenia patients to understand the biological basis of the disease and discover molecular paths for new clinical interventions. A major issue with postmortem analysis is the lack of tools to discern molecular modulation related to the disease from dysregulation due to medications. We review available proteome-wide analysis of antipsychotic treatment in rodents, highlighting shared dysregulated pathways that may contribute to an extended view of molecular processes underlying their pharmacological activity. Fourteen proteomic studies conducted with typical and atypical antipsychotic treatments were examined; hypothesis-based approaches are also briefly discussed. Treatment with antipsychotics mainly affects proteins belonging to metabolic pathways involved in energy generation, both in glycolytic and oxidative phosphorylation pathways, suggesting antipsychotics-induced impairments in metabolism. Nevertheless, schizophrenic patients show impaired glucose metabolism and mitochondrial dysfunctions independent of therapy. Other antipsychotics-induced changes shared by different studies implicate cytoskeletal and synaptic function proteins. The mechanism can be related to the reorganization of dendritic spines resulting from neural plasticity events induced by treatments affecting neurotransmitter circuitry. However, metabolic and plasticity pathways activated by antipsychotics can also play an authentic role in the etiopathological basis of schizophrenia.
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Affiliation(s)
- Lucia Carboni
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Enrico Domenici
- Roche Pharmaceutical Research and Early Development, Neuroscience, Ophthalmology and Rare Diseases Discovery & Translational Medicine Area, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, Basel, Switzerland
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10
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Early maternal deprivation-induced modifications in the neurobiological, neurochemical and behavioral profile of adult rats. Behav Brain Res 2013; 244:29-37. [DOI: 10.1016/j.bbr.2013.01.040] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Revised: 01/11/2013] [Accepted: 01/15/2013] [Indexed: 01/14/2023]
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Dason JS, Romero-Pozuelo J, Atwood HL, Ferrús A. Multiple roles for frequenin/NCS-1 in synaptic function and development. Mol Neurobiol 2012; 45:388-402. [PMID: 22396213 DOI: 10.1007/s12035-012-8250-4] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Accepted: 02/20/2012] [Indexed: 11/26/2022]
Abstract
The calcium-binding protein frequenin (Frq), discovered in the fruit fly Drosophila, and its mammalian homologue neuronal calcium sensor 1 (NCS-1) have been reported to affect several aspects of synaptic transmission, including basal levels of neurotransmission and short- and long-term synaptic plasticities. However, discrepant reports leave doubts about the functional roles of these conserved proteins. In this review, we attempt to resolve some of these seemingly contradictory reports. We discuss how stimulation protocols, sources of calcium (voltage-gated channels versus internal stores), and expression patterns (presynaptic versus postsynaptic) of Frq may result in the activation of various protein targets, leading to different synaptic effects. In addition, the potential interactions of Frq's C-terminal and N-terminal domains with other proteins are discussed. Frq also has a role in regulating neurite outgrowth, axonal regeneration, and synaptic development. We examine whether the effects of Frq on neurotransmitter release and neurite outgrowth are distinct or interrelated through homeostatic mechanisms. Learning and memory are affected by manipulations of Frq probably through changes in synaptic transmission and neurite outgrowth, raising the possibility that Frq may be implicated in human pathological conditions, including schizophrenia, bipolar disorder, and X-linked mental retardation.
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Affiliation(s)
- Jeffrey S Dason
- Department of Physiology, University of Toronto, Toronto, ON, Canada, M5S 1A8.
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Measuring Dopamine Synaptic Transmission with Molecular Imaging and Pharmacological Challenges: The State of the Art. MOLECULAR IMAGING IN THE CLINICAL NEUROSCIENCES 2012. [DOI: 10.1007/7657_2012_45] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Kunii Y, Ikemoto K, Wada A, Yang Q, Kusakabe T, Suzuki T, Niwa SI. Detailed DARPP-32 expression profiles in postmortem brains from patients with schizophrenia: an immunohistochemical study. Med Mol Morphol 2011; 44:190-9. [PMID: 22179181 DOI: 10.1007/s00795-010-0524-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2010] [Accepted: 07/05/2010] [Indexed: 12/29/2022]
Abstract
The prevalence of dopamine and cAMP-regulated phosphoprotein 32kD (DARPP-32) is associated with the pathogenesis of schizophrenia. To date, the findings on DARPP-32 cellular expression and distribution in postmortem brains from patients with schizophrenia have been inconsistent. To clarify the detailed cellular expression of DARPP-32 in patients with schizophrenia, we immunohistochemically stained sections from postmortem brains using specific antibodies. We measured the density of immunopositive cells in various brain regions including the prefrontal cortex and compared the data from nine schizophrenia subjects with those of nine age- and sex-matched control subjects. The density of DARPP-32-immunoreactive (IR) neurons was significantly lower in layers II-V of the dorsolateral prefrontal cortex (DLPFC) from subjects with schizophrenia. In contrast, there were no marked differences in DARPP-32 expression in other brain regions. In addition, the density of threonine (Thr34)-phosphorylated DARPP-32-IR neurons was significantly higher in layer V of DLPFC from subjects with schizophrenia. These results suggest that the decrease in DARPP-32 in schizophrenia was more marked in neurons of DLPFC than in other cells or other brain regions, and that this decrease might be partly compensated for by an increase in expression of Thr34-phosphorylated DARPP-32 in DLPFC.
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Affiliation(s)
- Yasuto Kunii
- Department of Neuropsychiatry, Fukushima Medical University School of Medicine, Hikarigaoka, Fukushima, Japan.
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Nishiura K, Kunii Y, Wada A, Matsumoto J, Yang Q, Ikemoto K, Niwa SI. Profiles of DARPP-32 in the insular cortex with schizophrenia: a postmortem brain study. Prog Neuropsychopharmacol Biol Psychiatry 2011; 35:1901-7. [PMID: 21821092 DOI: 10.1016/j.pnpbp.2011.07.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2011] [Revised: 07/18/2011] [Accepted: 07/21/2011] [Indexed: 12/19/2022]
Abstract
In patients with schizophrenia, various physical disorders are sometimes discovered only when they have reached a later and more severe stage. This phenomenon is believed to be caused, at least in part, by an increase in pain threshold. The gamma-aminobutyric acid (GABA)-ergic and glutamatergic systems in the rostral agranular insular cortex (RAIC) are thought to be involved in the regulation of pain threshold. However, no postmortem studies of the cerebral cortex have previously been published. Dopamine and cAMP-regulated phosphoprotein 32 kD (DARPP-32), which is involved in the GABAergic and glutamatergic systems, is considered to be crucial for elucidating the pathogenesis of schizophrenia. Using specific antibodies, we conducted immunohistochemical examinations of the RAIC in 10 subjects from a healthy control group, and 11 subjects from a schizophrenia group. The sex, age, and postmortem interval (PMI) of the schizophrenia group were matched to those of the healthy control group. We revealed that the density of DARPP-32-immunoreactive (IR) neurons in the II and III layers of the RAIC was significantly decreased (p<0.05) in the schizophrenia group compared with the healthy control group. Our findings could partially explain the molecular basis of the pain threshold abnormalities found in patients with schizophrenia.
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Affiliation(s)
- Keisuke Nishiura
- Department of Neuropsychiatry, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima City, Fukushima 960-1295, Japan
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Yger M, Girault JA. DARPP-32, Jack of All Trades… Master of Which? Front Behav Neurosci 2011; 5:56. [PMID: 21927600 PMCID: PMC3168893 DOI: 10.3389/fnbeh.2011.00056] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2011] [Accepted: 08/16/2011] [Indexed: 02/03/2023] Open
Abstract
DARPP-32 (PPP1R1B) was discovered as a substrate of cAMP-dependent protein kinase (PKA) enriched in dopamine-innervated brain areas. It is one of three related, PKA-regulated inhibitors of protein phosphatase-1 (PP1). These inhibitors seem to have appeared in early vertebrate ancestors, possibly Gnathostomes. DARPP-32 has additional important biochemical properties including inhibition of PKA when phosphorylated by Cdk5 and regulation by casein kinases 1 and 2. It is highly enriched in specific neuronal populations, especially striatal medium-size spiny neurons. As PP1 inhibitor DARPP-32 amplifies and/or mediates many actions of PKA at the plasma membrane and in the cytoplasm, with a broad spectrum of potential targets and functions. DARPP-32 also undergoes a continuous and tightly regulated cytonuclear shuttling. This trafficking is controlled by phosphorylation of Ser-97, which is necessary for nuclear export. When phosphorylated on Thr-34 and dephosphorylated on Ser-97, DARPP-32 can inhibit PP1 in the nucleus and modulate signaling pathways involved in the regulation of chromatin response. Recent work with multiple transgenic and knockout mutant mice has allowed the dissection of DARPP-32 function in striato-nigral and striato-pallidal neurons. It is implicated in the action of therapeutic and abused psychoactive drugs, in prefrontal cortex function, and in sexual behavior. However, the contribution of DARPP-32 in human behavior remains poorly understood. Post-mortem studies in humans suggest possible alterations of DARPP-32 levels in schizophrenia and bipolar disorder. Genetic studies have revealed a polymorphism with possible association with psychological and psychopathological traits. In addition, a short isoform of DARPP-32, t-DARPP, plays a role in cancer, indicating additional signaling properties. Thus, DARPP-32 is a non-essential but tightly regulated signaling hub molecule which may improve the general performance of the neuronal circuits in which it is expressed.
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Affiliation(s)
- Marion Yger
- INSERM UMR-S 839Paris, France
- Université Pierre et Marie CurieParis, France
- Institut du Fer à MoulinParis, France
| | - Jean-Antoine Girault
- INSERM UMR-S 839Paris, France
- Université Pierre et Marie CurieParis, France
- Institut du Fer à MoulinParis, France
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Walaas SI, Hemmings HC, Greengard P, Nairn AC. Beyond the dopamine receptor: regulation and roles of serine/threonine protein phosphatases. Front Neuroanat 2011; 5:50. [PMID: 21904525 PMCID: PMC3162284 DOI: 10.3389/fnana.2011.00050] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2011] [Accepted: 07/23/2011] [Indexed: 11/17/2022] Open
Abstract
Dopamine plays an important modulatory role in the central nervous system, helping to control critical aspects of motor function and reward learning. Alteration in normal dopaminergic neurotransmission underlies multiple neurological diseases including schizophrenia, Huntington’s disease, and Parkinson’s disease. Modulation of dopamine-regulated signaling pathways is also important in the addictive actions of most drugs of abuse. Our studies over the last 30 years have focused on the molecular actions of dopamine acting on medium spiny neurons, the predominant neurons of the neostriatum. Striatum-enriched phosphoproteins, particularly dopamine and adenosine 3′:5′-monophosphate-regulated phosphoprotein of 32 kDa (DARPP-32), regulator of calmodulin signaling (RCS), and ARPP-16, mediate pleiotropic actions of dopamine. Notably, each of these proteins, either directly or indirectly, regulates the activity of one of the three major subclasses of serine/threonine protein phosphatases, PP1, PP2B, and PP2A, respectively. For example, phosphorylation of DARPP-32 at Thr34 by protein kinase A results in potent inhibition of PP1, leading to potentiation of dopaminergic signaling at multiple steps from the dopamine receptor to the nucleus. The discovery of DARPP-32 and its emergence as a critical molecular integrator of striatal signaling will be discussed, as will more recent studies that highlight novel roles for RCS and ARPP-16 in dopamine-regulated striatal signaling pathways.
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Affiliation(s)
- Sven Ivar Walaas
- Department of Biochemistry, Institute of Basic Medical Sciences, University of Oslo Oslo, Norway
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17
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Souza BR, Tropepe V. The role of dopaminergic signalling during larval zebrafish brain development: a tool for investigating the developmental basis of neuropsychiatric disorders. Rev Neurosci 2011; 22:107-19. [PMID: 21615265 DOI: 10.1515/rns.2011.012] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Neurodevelopment depends on intrinsic and extrinsic factors that influence the overall pattern of neurogenesis and neural circuit formation, which has a direct impact on behaviour. Defects in dopamine signalling and brain morphology at a relatively early age, and mutations in neurodevelopmental genes are strongly correlated with several neuropsychiatric disorders. This evidence supports the hypothesis of a neurodevelopmental origin of at least some forms of mental illness. Zebrafish (Danio rerio) has emerged as an important vertebrate model system in biomedical research. The ease with which intrinsic and extrinsic factors can be altered during early development, the relatively conserved dopaminergic circuit organisation in the larval brain, and the emergence of simple sensorimotor behaviours very early in development are some of the appealing features that make this organism advantageous for developmental brain and behaviour research. Thus, examining the impact of altered dopamine signalling and disease related genetic aberrations during zebrafish development presents a unique opportunity to holistically analyse the in vivo biochemical, morphological and behavioural significance of altered dopamine signalling during a crucial period of development using a highly tractable vertebrate model organism. Ultimately, this information will shed new light on potential therapeutic targets for the treatment of schizophrenia and perhaps serve as a paradigm for investigating the neurodevelopmental origin of other psychiatric disorders.
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Affiliation(s)
- Bruno Rezende Souza
- Department of Cell and Systems Biology, Centre for the Analysis of Genome Evolution and Function, University of Toronto, Toronto M5S 3G5, ON, Canada
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18
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Dopamine D2 receptor activity modulates Akt signaling and alters GABAergic neuron development and motor behavior in zebrafish larvae. J Neurosci 2011; 31:5512-25. [PMID: 21471388 DOI: 10.1523/jneurosci.5548-10.2011] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
An imbalance in dopamine-mediated neurotransmission is a hallmark physiological feature of neuropsychiatric disorders, such as schizophrenia. Recent evidence demonstrates that dopamine D(2) receptors, which are the main target of antipsychotics, modulate the activity of the protein kinase Akt, which is known to be downregulated in the brain of patients with schizophrenia. Akt has an important role in the regulation of cellular processes that are critical for neurodevelopment, including gene transcription, cell proliferation, and neuronal migration. Thus, it is possible that during brain development, altered Akt-dependent dopamine signaling itself may lead to defects in neural circuit formation. Here, we used a zebrafish model to assess the direct impact of altered dopamine signaling on brain development and larval motor behavior. We demonstrate that D(2) receptor activation acutely suppresses Akt activity by decreasing the level of pAkt(Thr308) in the larval zebrafish brain. This D(2)-dependent reduction in Akt activity negatively regulates larval movement and is distinct from a D(1)-dependent pathway with opposing affects on motor behavior. In addition, we show that D(2)-dependent suppression of Akt activity causes a late onset change in GSK3b activity, a known downstream target of Akt signaling. Finally, altered D(2) receptor signaling, or direct inhibition of Akt activity, causes a significant decrease in the size of the GABAergic neuron population throughout most of the brain. Our observations suggest that D(2) receptor signaling suppresses Akt-GSK3b activity, which regulates GABAergic neuron development and motor behavior.
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Souza BR, Torres KCL, Miranda DM, Motta BS, Caetano FS, Rosa DVF, Souza RP, Giovani A, Carneiro DS, Guimarães MM, Martins-Silva C, Reis HJ, Gomez MV, Jeromin A, Romano-Silva MA. Downregulation of the cAMP/PKA pathway in PC12 cells overexpressing NCS-1. Cell Mol Neurobiol 2010; 31:135-43. [PMID: 20838877 DOI: 10.1007/s10571-010-9562-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2010] [Accepted: 08/28/2010] [Indexed: 10/19/2022]
Abstract
It is well known that dopamine imbalances are associated with many psychiatric disorders and that the dopaminergic receptor D₂ is the main target of antipsychotics. Recently it was shown that levels of two proteins implicated in dopaminergic signaling, Neuronal calcium sensor-1 (NCS-1) and DARPP-32, are altered in the prefrontal cortex (PFC) of both schizophrenic and bipolar disorder patients. NCS-1, which inhibits D₂ internalization, is upregulated in the PFC of both patients. DARPP-32, which is a downstream effector of dopamine signaling, integrates the pathways of several neurotransmitters and is downregulated in the PFC of both patients. Here, we used PC12 cells stably overexpressing NCS-1 (PC12-NCS-1 cells) to address the function of this protein in DARPP-32 signaling pathway in vitro. PC12-NCS-1 cells displayed downregulation of the cAMP/PKA pathway, with decreased levels of cAMP and phosphorylation of CREB at Ser133. We also observed decreased levels of total and phosphorylated DARPP-32 at Thr34. However, these cells did not show alterations in the levels of D₂ and phosphorylation of DARPP-32 at Thr75. These results indicate that NCS-1 modulates PKA/cAMP signaling pathway. Identification of the cellular mechanisms linking NCS-1 and DARPP-32 may help in the understanding the signaling machinery with potential to be turned into targets for the treatment of schizophrenia and other debilitating psychiatric disorders.
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Affiliation(s)
- Bruno R Souza
- Departamento de Saúde Mental, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.
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20
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Souza BR, Torres KCL, Miranda DM, Motta BS, Scotti-Muzzi E, Guimarães MM, Carneiro DS, Rosa DVF, Souza RP, Reis HJ, Jeromin A, Romano-Silva MA. Lack of effects of typical and atypical antipsychotics in DARPP-32 and NCS-1 levels in PC12 cells overexpressing NCS-1. J Negat Results Biomed 2010; 9:4. [PMID: 20565907 PMCID: PMC2912242 DOI: 10.1186/1477-5751-9-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2009] [Accepted: 06/19/2010] [Indexed: 11/29/2022] Open
Abstract
Background Schizophrenia is the major psychiatry disorder, which the exact cause remains unknown. However, it is well known that dopamine-mediated neurotransmission imbalance is associated with this pathology and the main target of antipsychotics is the dopamine receptor D2. Recently, it was described alteration in levels of two dopamine signaling related proteins in schizophrenic prefrontal cortex (PFC): Neuronal Calcium Sensor-1 (NCS-1) and DARPP-32. NCS-1, which is upregulated in PFC of schizophrenics, inhibits D2 internalization. DARPP-32, which is decreased in PFC of schizophrenics, is a key downstream effector in transducing dopamine signaling. We previously demonstrated that antipsychotics do not change levels of both proteins in rat's brain. However, since NCS-1 and DARPP-32 levels are not altered in wild type rats, we treated wild type PC12 cells (PC12 WT) and PC12 cells stably overexpressing NCS-1 (PC12 Clone) with antipsychotics to investigate if NCS-1 upregulation modulates DARPP-32 expression in response to antipsychotics treatment. Results We chronically treated both PC12 WT and PC12 Clone cells with typical (Haloperidol) or atypical (Clozapine and Risperidone) antipsychotics for 14 days. Using western blot technique we observed that there is no change in NCS-1 and DARPP-32 protein levels in both PC12 WT and PC12 Clone cells after typical and atypical antipsychotic treatments. Conclusions Because we observed no alteration in NCS-1 and DARPP-32 levels in both PC12 WT and Clone cells treated with typical or atypical antipsychotics, we suggest that the alteration in levels of both proteins in schizophrenic's PFC is related to psychopathology but not with antipsychotic treatment.
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Affiliation(s)
- Bruno R Souza
- Laboratório de Neurociências, Departamento de Saúde Mental, Faculdade de Medicina, Universidade Federal de Minas Gerais, Av Alfredo Balena 190, Belo Horizonte, MG, Brazil
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21
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Expression of neuronal calcium sensor-1 (NCS-1) is decreased in leukocytes of schizophrenia and bipolar disorder patients. Prog Neuropsychopharmacol Biol Psychiatry 2009; 33:229-34. [PMID: 19091302 DOI: 10.1016/j.pnpbp.2008.11.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2008] [Revised: 11/10/2008] [Accepted: 11/11/2008] [Indexed: 02/07/2023]
Abstract
Schizophrenia (SCZ) and bipolar disorder (BPD) are severe illnesses representing an enormous social, familiar and individual burden that affect 1% of the population world-wide. Several evidences indicate abnormalities of the dopamine system in both SCZ and BPD. Neuronal calcium sensor-1 (NCS-1) is a protein that has many functions in neurotransmission such as inhibition of dopamine D(2) receptor desensitization, regulation of ionic channels and enhancement of exocytosis of neurotransmitters. In addition, NCS-1 protein expression and mRNA levels were found increased in pre-frontal cortex (PFC) of SCZ and BPD patients. NCS-1 expression in neural and neuroendocrine cells is well documented and, recently, it was shown that NCS-1 is also expressed in mast cells and neutrophils. NCS-1 has important functions in mast cells since it stimulates Fc epsilon RI-triggered exocytosis and the release of arachidonic acid metabolites. Then, due to the known close relation between the nervous and immune systems, we sought to investigate the NCS-1 expression in lymphocytes and monocytes (CD4+ T lymphocytes, CD56+ NK cells, CD19+ B lymphocytes and CD14+ monocytes) of SCZ and BPD patients. Using flow cytometry, our results have shown that NCS-1 expression was diminished in CD4+T lymphocytes, CD19+ B lymphocytes and CD14+ monocytes of BPD patients and also decreased in CD4+ T lymphocytes and CD56+ NK cells of SCZ patients. Results suggest that immune cells might be a cellular model for studies with SCZ and BPD patients considering NCS-1 functions. Efforts need to be done to investigate the motive of the decreased percentage of immune cells expressing NCS-1 in patients with SCZ and BPD.
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Pinheiro SVB, Ferreira AJ, Kitten GT, da Silveira KD, da Silva DA, Santos SHS, Gava E, Castro CH, Magalhães JA, da Mota RK, Botelho-Santos GA, Bader M, Alenina N, Santos RAS, Simoes E Silva AC. Genetic deletion of the angiotensin-(1-7) receptor Mas leads to glomerular hyperfiltration and microalbuminuria. Kidney Int 2009; 75:1184-1193. [PMID: 19262461 DOI: 10.1038/ki.2009.61] [Citation(s) in RCA: 115] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Angiotensin-(1-7), an active fragment of both angiotensins I and II, generally opposes the vascular and proliferative actions of angiotensin II. Here we evaluated effects of the angiotensin-(1-7) receptor Mas on renal physiology and morphology using Mas-knockout mice. Compared to the wild-type animals, Mas knockout mice had significant reductions in urine volume and fractional sodium excretion without any significant change in free-water clearance. A significantly higher inulin clearance and microalbuminuria concomitant with a reduced renal blood flow suggest that glomerular hyperfiltration occurs in the knockout mice. Histological analysis found reduced glomerular tuft diameter and increased expression of collagen IV and fibronectin in the both the mesangium and interstitium, along with increased collagen III in the interstitium. These fibrogenic changes and the renal dysfunction of the knockout mice were associated with an upregulation of angiotensin II AT1 receptor and transforming growth factor-beta mRNA. Our study suggests that Mas acts as a critical regulator of renal fibrogenesis by controlling effects transduced through angiotensin II AT1 receptors in the kidney.
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Affiliation(s)
- Sérgio V B Pinheiro
- Pediatric Nephrology Unit, Medicine Faculty, Department of Pediatrics, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Anderson J Ferreira
- Department of Morphology, Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Gregory T Kitten
- Department of Morphology, Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Kátia D da Silveira
- Department of Physiology and Biophysics, Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Deivid A da Silva
- Pediatric Nephrology Unit, Medicine Faculty, Department of Pediatrics, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Sérgio H S Santos
- Department of Physiology and Biophysics, Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Elisandra Gava
- Department of Morphology, Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Carlos H Castro
- Department of Physiology and Biophysics, Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Júnio A Magalhães
- Department of Physiology and Biophysics, Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Renata K da Mota
- Department of Morphology, Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Giancarla A Botelho-Santos
- Department of Physiology and Biophysics, Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Michael Bader
- Max Delbrück Center for Molecular Medicine, Berlin, Germany
| | | | - Robson A S Santos
- Department of Physiology and Biophysics, Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Ana Cristina Simoes E Silva
- Pediatric Nephrology Unit, Medicine Faculty, Department of Pediatrics, Federal University of Minas Gerais, Belo Horizonte, Brazil.
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Souza RP, Soares EC, Rosa DVF, Souza BR, Réus GZ, Barichello T, Gomes KM, Gomez MV, Quevedo J, Romano-Silva MA. Methylphenidate alters NCS-1 expression in rat brain. Neurochem Int 2008; 53:12-6. [PMID: 18514368 DOI: 10.1016/j.neuint.2008.04.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2008] [Accepted: 04/21/2008] [Indexed: 01/25/2023]
Abstract
Methylphenidate has been used as an effective treatment for attention deficit hyperactivity disorder (ADHD). Methylphenidate (MPH) blocks dopamine and norepinephrine transporters causing an increase in extracellular levels. The use of psychomotor stimulants continues to rise due to both the treatment of ADHD and illicit abuse. Methylphenidate sensitization mechanism has still poor knowledge. Neuronal calcium sensor 1 was identified as a dopaminergic receptor interacting protein. When expressed in mammalian cells, neuronal calcium sensor 1 attenuates dopamine-induced D2 receptor internalization by a mechanism that involves a reduction in D2 receptor phosphorylation. Neuronal calcium sensor 1 appears to play a pivotal role in regulating D2 receptor function, it will be important to determine if there are alterations in neuronal calcium sensor 1 in neuropathologies associated with deregulation in dopaminergic signaling. Then, we investigated if methylphenidate could alter neuronal calcium sensor 1 expression in five brain regions (striatum, hippocampus, prefrontal cortex, cortex and cerebellum) in young and adult rats. These regions were chosen because some are located in brain circuits related with attention deficit hyperactivity disorder. Our results showed changes in neuronal calcium sensor 1 expression in hippocampus, prefrontal cortex and cerebellum mainly in adult rats. The demonstration that methylphenidate induces changes in neuronal calcium sensor 1 levels in rat brain may help to understand sensitization mechanisms as well as methylphenidate therapeutic effects to improve attention deficit hyperactivity disorder symptoms.
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Affiliation(s)
- Renan P Souza
- Grupo de Pesquisa em Neuropsiquiatria Clínica e Molecular, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil.
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