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Tendilla-Beltrán H, Garcés-Ramírez L, Martínez-Vásquez E, Nakakawa A, Gómez-Villalobos MDJ, Flores G. Differential Effects of Neonatal Ventral Hippocampus Lesion on Behavior and Corticolimbic Plasticity in Wistar-Kyoto and Spontaneously Hypertensive Rats. Neurochem Res 2024; 49:959-979. [PMID: 38157113 DOI: 10.1007/s11064-023-04074-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/24/2023] [Accepted: 11/21/2023] [Indexed: 01/03/2024]
Abstract
Dysfunction of the corticolimbic system, particularly at the dendritic spine level, is a recognized core mechanism in neurodevelopmental disorders such as schizophrenia. Neonatal ventral hippocampus lesion (NVHL) in Sprague-Dawley rats induces both a schizophrenia-related behavioral phenotype and dendritic spine pathology (reduced total number and mature spines) in corticolimbic areas, which is mitigated by antipsychotics. However, there is limited information on the impact of rat strain on NVHL outcomes and antipsychotic effects. We compared the behavioral performance in the open field, novel object recognition (NORT), and social interaction tests, as well as structural neuroplasticity with the Golgi-Cox stain in Wistar-Kyoto (WKY) and spontaneously hypertensive (SH) male rats with and without NVHL. Additionally, we explored the effect of the atypical antipsychotic risperidone (RISP). WKY rats with NVHL displayed motor hyperactivity without impairments in memory and social behavior, accompanied by dendritic spine pathology in the neurons of the prefrontal cortex (PFC) layer 3 and basolateral amygdala. RISP treatment reduced motor activity and had subtle and selective effects on the neuroplasticity alterations. In SH rats, NVHL increased the time spent in the border area during the open field test, impaired the short-term performance in NORT, and reduced social interaction time, deficits that were corrected after RISP administration. The NVHL caused dendritic spine pathology in the PFC layers 3 and 5 of SH rats, which RISP treatment ameliorated. Our results support the utility of the NVHL model for exploring neuroplasticity mechanisms in schizophrenia and understanding pharmacotherapy.
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Affiliation(s)
- Hiram Tendilla-Beltrán
- Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla (BUAP), 14 Sur 6301, 72570, Puebla, Mexico
| | - Linda Garcés-Ramírez
- Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional (IPN), Mexico City, Mexico
| | - Edwin Martínez-Vásquez
- Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla (BUAP), 14 Sur 6301, 72570, Puebla, Mexico
| | - Andrea Nakakawa
- Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla (BUAP), 14 Sur 6301, 72570, Puebla, Mexico
| | | | - Gonzalo Flores
- Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla (BUAP), 14 Sur 6301, 72570, Puebla, Mexico.
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2
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Zhai S, Cui Q, Simmons DV, Surmeier DJ. Distributed dopaminergic signaling in the basal ganglia and its relationship to motor disability in Parkinson's disease. Curr Opin Neurobiol 2023; 83:102798. [PMID: 37866012 PMCID: PMC10842063 DOI: 10.1016/j.conb.2023.102798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 09/19/2023] [Accepted: 09/20/2023] [Indexed: 10/24/2023]
Abstract
The degeneration of mesencephalic dopaminergic neurons that innervate the basal ganglia is responsible for the cardinal motor symptoms of Parkinson's disease (PD). It has been thought that loss of dopaminergic signaling in one basal ganglia region - the striatum - was solely responsible for the network pathophysiology causing PD motor symptoms. While our understanding of dopamine (DA)'s role in modulating striatal circuitry has deepened in recent years, it also has become clear that it acts in other regions of the basal ganglia to influence movement. Underscoring this point, examination of a new progressive mouse model of PD shows that striatal dopamine DA depletion alone is not sufficient to induce parkinsonism and that restoration of extra-striatal DA signaling attenuates parkinsonian motor deficits once they appear. This review summarizes recent advances in the effort to understand basal ganglia circuitry, its modulation by DA, and how its dysfunction drives PD motor symptoms.
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Affiliation(s)
- Shenyu Zhai
- Department of Neuroscience, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Qiaoling Cui
- Department of Neuroscience, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - DeNard V Simmons
- Department of Neuroscience, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - D James Surmeier
- Department of Neuroscience, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA; Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD 20815, USA.
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Ayon-Olivas M, Wolf D, Andreska T, Granado N, Lüningschrör P, Ip CW, Moratalla R, Sendtner M. Dopaminergic Input Regulates the Sensitivity of Indirect Pathway Striatal Spiny Neurons to Brain-Derived Neurotrophic Factor. BIOLOGY 2023; 12:1360. [PMID: 37887070 PMCID: PMC10604681 DOI: 10.3390/biology12101360] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/13/2023] [Accepted: 10/19/2023] [Indexed: 10/28/2023]
Abstract
Motor dysfunction in Parkinson's disease (PD) is closely linked to the dopaminergic depletion of striatal neurons and altered synaptic plasticity at corticostriatal synapses. Dopamine receptor D1 (DRD1) stimulation is a crucial step in the formation of long-term potentiation (LTP), whereas dopamine receptor D2 (DRD2) stimulation is needed for the formation of long-term depression (LTD) in striatal spiny projection neurons (SPNs). Tropomyosin receptor kinase B (TrkB) and its ligand brain-derived neurotrophic factor (BDNF) are centrally involved in plasticity regulation at the corticostriatal synapses. DRD1 activation enhances TrkB's sensitivity for BDNF in direct pathway spiny projection neurons (dSPNs). In this study, we showed that the activation of DRD2 in cultured striatal indirect pathway spiny projection neurons (iSPNs) and cholinergic interneurons causes the retraction of TrkB from the plasma membrane. This provides an explanation for the opposing synaptic plasticity changes observed upon DRD1 or DRD2 stimulation. In addition, TrkB was found within intracellular structures in dSPNs and iSPNs from Pitx3-/- mice, a genetic model of PD with early onset dopaminergic depletion in the dorsolateral striatum (DLS). This dysregulated BDNF/TrkB signaling might contribute to the pathophysiology of direct and indirect pathway striatal projection neurons in PD.
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Affiliation(s)
- Maurilyn Ayon-Olivas
- Institute of Clinical Neurobiology, University Hospital Wuerzburg, 97078 Wuerzburg, Germany
| | - Daniel Wolf
- Institute of Clinical Neurobiology, University Hospital Wuerzburg, 97078 Wuerzburg, Germany
| | - Thomas Andreska
- Institute of Clinical Neurobiology, University Hospital Wuerzburg, 97078 Wuerzburg, Germany
| | - Noelia Granado
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC), 28002 Madrid, Spain
- CIBERNED, Instituto de Salud Carlos III, 28002 Madrid, Spain
| | - Patrick Lüningschrör
- Institute of Clinical Neurobiology, University Hospital Wuerzburg, 97078 Wuerzburg, Germany
| | - Chi Wang Ip
- Department of Neurology, University Hospital Wuerzburg, 97080 Wuerzburg, Germany
| | - Rosario Moratalla
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC), 28002 Madrid, Spain
- CIBERNED, Instituto de Salud Carlos III, 28002 Madrid, Spain
| | - Michael Sendtner
- Institute of Clinical Neurobiology, University Hospital Wuerzburg, 97078 Wuerzburg, Germany
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Flores-Gómez GD, Apam-Castillejos DJ, Juárez-Díaz I, Fuentes-Medel E, Díaz A, Tendilla-Beltrán H, Flores G. Aripiprazole attenuates the medial prefrontal cortex morphological and biochemical alterations in rats with neonatal ventral hippocampus lesion. J Chem Neuroanat 2023; 132:102316. [PMID: 37481172 DOI: 10.1016/j.jchemneu.2023.102316] [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: 06/11/2023] [Revised: 07/17/2023] [Accepted: 07/19/2023] [Indexed: 07/24/2023]
Abstract
Schizophrenia is a neurodevelopmental disorder characterized by a loss of dendritic spines in the medial prefrontal cortex (mPFC). Multiple subclinical and clinical studies have evidenced the ability of antipsychotics to improve neuroplasticity. In this study, it was evaluated the effect of the atypical antipsychotic aripiprazole (ARI) on the behavioral and mPFC neuronal disturbances of rats with neonatal ventral hippocampus lesion (nVHL), which is a heuristic developmental model relevant to the study of schizophrenia. ARI attenuated open field hyperlocomotion in the rats with nVHL. Also, ARI ameliorated structural neuroplasticity disturbances of the mPFC layer 3 pyramidal cells, but not in the layer 5 neurons. These effects can be associated with the ARI capability of increasing brain-derived neurotrophic factor (BDNF) levels. Moreover, in the animals with nVHL, ARI attenuated the immunoreactivity for some oxidative stress-related molecules such as the nitric oxide synthase 2 (NOS-2), 3-nitrotyrosine (3-NT), and cyclooxygenase 2 (COX-2), as well as the reactive astrogliosis in the mPFC. These results contribute to current knowledge about the neurotrophic, anti-inflammatory, and antioxidant properties of antipsychotics which may be contributing to their clinical effects and envision promising therapeutic targets for the treatment of schizophrenia.
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Affiliation(s)
| | | | - Ismael Juárez-Díaz
- Facultad de Estomatología, Benemérita Universidad Autónoma de Puebla (BUAP), Puebla, Mexico
| | - Estefania Fuentes-Medel
- Facultad de Ciencias Químicas (FCQ), Benemérita Universidad Autónoma de Puebla (BUAP), Puebla, Mexico
| | - Alfonso Díaz
- Facultad de Ciencias Químicas (FCQ), Benemérita Universidad Autónoma de Puebla (BUAP), Puebla, Mexico
| | - Hiram Tendilla-Beltrán
- Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla (BUAP), Puebla, Mexico
| | - Gonzalo Flores
- Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla (BUAP), Puebla, Mexico.
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Sáez M, Keifman E, Alberquilla S, Coll C, Reig R, Murer MG, Moratalla R. D2 dopamine receptors and the striatopallidal pathway modulate L-DOPA-induced dyskinesia in the mouse. Neurobiol Dis 2023; 186:106278. [PMID: 37683958 DOI: 10.1016/j.nbd.2023.106278] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 08/18/2023] [Accepted: 08/31/2023] [Indexed: 09/10/2023] Open
Abstract
L-DOPA-induced dyskinesia (LID) remains a major complication of Parkinson's disease management for which better therapies are necessary. The contribution of the striatonigral direct pathway to LID is widely acknowledged but whether the striatopallidal pathway is involved remains debated. Selective optogenetic stimulation of striatonigral axon terminals induces dyskinesia in mice rendered hemiparkinsonian with the toxin 6-hydroxydopamine (6-OHDA). Here we show that optogenetically-induced dyskinesia is increased by the D2-type dopamine receptor agonist quinpirole. Although the quinpirole effect may be mediated by D2 receptor stimulation in striatopallidal neurons, alternative mechanisms may be responsible as well. To selectively modulate the striatopallidal pathway, we selectively expressed channelrhodopsin-2 (ChR2) in D2 receptor expressing neurons by crossing D2-Cre and ChR2-flox mice. The animals were rendered hemiparkinsonian and implanted with an optic fiber at the ipsilateral external globus pallidus (GPe). Stimulation of ChR2 at striatopallidal axon terminals reduced LID and also general motility during the off L-DOPA state, without modifying the pro-motor effect of low doses of L-DOPA producing mild or no dyskinesia. Overall, the present study shows that D2-type dopamine receptors and the striatopallidal pathway modulate dyskinesia and suggest that targeting striatopallidal axon terminals at the GPe may have therapeutic potential in the management of LID.
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Affiliation(s)
- María Sáez
- Instituto Cajal, Consejo Superior de Investigaciones Científicas, CSIC, Madrid 28002, Spain; Instituto de Neurociencias UMH-CSIC, San Juan de Alicante, Alicante 03550, Spain
| | - Ettel Keifman
- Universidad de Buenos Aires, Facultad de Medicina, Departamento de Ciencias Fisiológicas, Argentina; Universidad de Buenos Aires and CONICET, Instituto de Fisiología y Biofísica Bernardo Houssay (IFIBIO Houssay), 2155 Paraguay St, Buenos Aires 1121, Argentina
| | - Samuel Alberquilla
- Instituto Cajal, Consejo Superior de Investigaciones Científicas, CSIC, Madrid 28002, Spain; CIBERNED, Instituto de Salud Carlos III, Madrid, Spain
| | - Camila Coll
- Universidad de Buenos Aires and CONICET, Instituto de Fisiología y Biofísica Bernardo Houssay (IFIBIO Houssay), 2155 Paraguay St, Buenos Aires 1121, Argentina
| | - Ramón Reig
- Instituto de Neurociencias UMH-CSIC, San Juan de Alicante, Alicante 03550, Spain
| | - Mario Gustavo Murer
- Universidad de Buenos Aires, Facultad de Medicina, Departamento de Ciencias Fisiológicas, Argentina; Universidad de Buenos Aires and CONICET, Instituto de Fisiología y Biofísica Bernardo Houssay (IFIBIO Houssay), 2155 Paraguay St, Buenos Aires 1121, Argentina.
| | - Rosario Moratalla
- Instituto Cajal, Consejo Superior de Investigaciones Científicas, CSIC, Madrid 28002, Spain; CIBERNED, Instituto de Salud Carlos III, Madrid, Spain.
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Surmeier DJ, Zhai S, Cui Q, Simmons DV. Rethinking the network determinants of motor disability in Parkinson's disease. Front Synaptic Neurosci 2023; 15:1186484. [PMID: 37448451 PMCID: PMC10336242 DOI: 10.3389/fnsyn.2023.1186484] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 06/12/2023] [Indexed: 07/15/2023] Open
Abstract
For roughly the last 30 years, the notion that striatal dopamine (DA) depletion was the critical determinant of network pathophysiology underlying the motor symptoms of Parkinson's disease (PD) has dominated the field. While the basal ganglia circuit model underpinning this hypothesis has been of great heuristic value, the hypothesis itself has never been directly tested. Moreover, studies in the last couple of decades have made it clear that the network model underlying this hypothesis fails to incorporate key features of the basal ganglia, including the fact that DA acts throughout the basal ganglia, not just in the striatum. Underscoring this point, recent work using a progressive mouse model of PD has shown that striatal DA depletion alone is not sufficient to induce parkinsonism and that restoration of extra-striatal DA signaling attenuates parkinsonian motor deficits once they appear. Given the broad array of discoveries in the field, it is time for a new model of the network determinants of motor disability in PD.
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Affiliation(s)
- Dalton James Surmeier
- Department of Neuroscience, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Shenyu Zhai
- Department of Neuroscience, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Qiaoling Cui
- Department of Neuroscience, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - DeNard V Simmons
- Department of Neuroscience, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
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Zhong M, Wang Y, Lin G, Liao FF, Zhou FM. Dopamine-independent development and maintenance of mouse striatal medium spiny neuron dendritic spines. Neurobiol Dis 2023; 181:106096. [PMID: 37001611 PMCID: PMC10864017 DOI: 10.1016/j.nbd.2023.106096] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 03/18/2023] [Accepted: 03/20/2023] [Indexed: 03/31/2023] Open
Abstract
Striatal medium spiny neurons (MSNs) and striatal dopamine (DA) innervation are profoundly important for brain function such as motor control and cognition. A widely accepted theory posits that striatal DA loss causes (or leads to) MSN dendritic atrophy. However, examination of the literature indicates that the data from Parkinson's disease (PD) patients and animal PD models were contradictory among studies and hard to interpret. Here we have re-examined the potential effects of DA activity on MSN morphology or lack thereof. We found that in 15-day, 4- and 12-month old Pitx3 null mutant mice that have severe DA denervation in the dorsal striatum while having substantial residual DA innervation in the ventral striatum, MSN dendrites and spine numbers were similar in dorsal and ventral striatum, and also similar to those in normal mice. In 15-day, 4- and 12-month old tyrosine hydroxylase knockout mice that cannot synthesize L-dopa and thus have no endogenous DA in the entire brain, MSN dendrites and spine numbers were also indistinguishable from age-matched wild-type (WT) mice. Furthermore, in adult WT mice, unilateral 6-OHDA lesion at 12 months of age caused an almost complete striatal DA denervation in the lesioned side, but MSN dendrites and spine numbers were similar in the lesioned and control sides. Taken together, our data indicate that in mice, the development and maintenance of MSN dendrites and spines are DA-independent such that DA depletion does not trigger MSN dendritic atrophy; our data also suggest that the reported MSN dendritic atrophy in PD may be a component of neurodegeneration in PD rather than a consequence of DA denervation.
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Affiliation(s)
- Manli Zhong
- College of Life and Health Sciences, Northeastern University, No.195, Chuangxin Road, Hunnan District, Shenyang 110169, China; Department of Pharmacology, Addiction Science and Toxicology, College of Medicine, University of Tennessee, Memphis, TN 38103, USA.
| | - Yuhan Wang
- Department of Pharmacology, Addiction Science and Toxicology, College of Medicine, University of Tennessee, Memphis, TN 38103, USA
| | - Geng Lin
- Teaching Center for Basic Medical Experiments, China Medical University, Shenyang 110122, China; Department of Pharmacology, Addiction Science and Toxicology, College of Medicine, University of Tennessee, Memphis, TN 38103, USA
| | - Francesca-Fang Liao
- Department of Pharmacology, Addiction Science and Toxicology, College of Medicine, University of Tennessee, Memphis, TN 38103, USA
| | - Fu-Ming Zhou
- Department of Pharmacology, Addiction Science and Toxicology, College of Medicine, University of Tennessee, Memphis, TN 38103, USA.
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Basanisi R, Marche K, Combrisson E, Apicella P, Brovelli A. Beta Oscillations in Monkey Striatum Encode Reward Prediction Error Signals. J Neurosci 2023; 43:3339-3352. [PMID: 37015808 PMCID: PMC10162459 DOI: 10.1523/jneurosci.0952-22.2023] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 02/22/2023] [Accepted: 03/17/2023] [Indexed: 04/06/2023] Open
Abstract
Reward prediction error (RPE) signals are crucial for reinforcement learning and decision-making as they quantify the mismatch between predicted and obtained rewards. RPE signals are encoded in the neural activity of multiple brain areas, such as midbrain dopaminergic neurons, prefrontal cortex, and striatum. However, it remains unclear how these signals are expressed through anatomically and functionally distinct subregions of the striatum. In the current study, we examined to which extent RPE signals are represented across different striatal regions. To do so, we recorded local field potentials (LFPs) in sensorimotor, associative, and limbic striatal territories of two male rhesus monkeys performing a free-choice probabilistic learning task. The trial-by-trial evolution of RPE during task performance was estimated using a reinforcement learning model fitted on monkeys' choice behavior. Overall, we found that changes in beta band oscillations (15-35 Hz), after the outcome of the animal's choice, are consistent with RPE encoding. Moreover, we provide evidence that the signals related to RPE are more strongly represented in the ventral (limbic) than dorsal (sensorimotor and associative) part of the striatum. To conclude, our results suggest a relationship between striatal beta oscillations and the evaluation of outcomes based on RPE signals and highlight a major contribution of the ventral striatum to the updating of learning processes.SIGNIFICANCE STATEMENT Reward prediction error (RPE) signals are crucial for reinforcement learning and decision-making as they quantify the mismatch between predicted and obtained rewards. Current models suggest that RPE signals are encoded in the neural activity of multiple brain areas, including the midbrain dopaminergic neurons, prefrontal cortex and striatum. However, it remains elusive whether RPEs recruit anatomically and functionally distinct subregions of the striatum. Our study provides evidence that RPE-related modulations in local field potential (LFP) power are dominant in the striatum. In particular, they are stronger in the rostro-ventral rather than the caudo-dorsal striatum. Our findings contribute to a better understanding of the role of striatal territories in reward-based learning and may be relevant for neuropsychiatric and neurologic diseases that affect striatal circuits.
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Affiliation(s)
- Ruggero Basanisi
- Institut de Neurosciences de la Timone, Aix Marseille Université, Unité Mixte de Recherche 7289 Centre National de la Recherche Scientifique, Marseille 13005, France
| | - Kevin Marche
- Institut de Neurosciences de la Timone, Aix Marseille Université, Unité Mixte de Recherche 7289 Centre National de la Recherche Scientifique, Marseille 13005, France
- Wellcome Center for Integrative Neuroimaging, Department of Experimental Psychology, University of Oxford, Oxford OX3 9DU, United Kingdom
| | - Etienne Combrisson
- Institut de Neurosciences de la Timone, Aix Marseille Université, Unité Mixte de Recherche 7289 Centre National de la Recherche Scientifique, Marseille 13005, France
| | - Paul Apicella
- Institut de Neurosciences de la Timone, Aix Marseille Université, Unité Mixte de Recherche 7289 Centre National de la Recherche Scientifique, Marseille 13005, France
| | - Andrea Brovelli
- Institut de Neurosciences de la Timone, Aix Marseille Université, Unité Mixte de Recherche 7289 Centre National de la Recherche Scientifique, Marseille 13005, France
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Beeson ALS, Meitzen J. Estrous cycle impacts on dendritic spine plasticity in rat nucleus accumbens core and shell and caudate-putamen. J Comp Neurol 2023; 531:759-774. [PMID: 36756791 PMCID: PMC10994586 DOI: 10.1002/cne.25460] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 12/22/2022] [Accepted: 01/17/2023] [Indexed: 02/10/2023]
Abstract
An important factor that can modulate neuron properties is sex-specific hormone fluctuations, including the human menstrual cycle and rat estrous cycle in adult females. Considering the striatal brain regions, the nucleus accumbens (NAc) core, NAc shell, and caudate-putamen (CPu), the estrous cycle has previously been shown to impact relevant behaviors and disorders, neuromodulator action, and medium spiny neuron (MSN) electrophysiology. Whether the estrous cycle impacts MSN dendritic spine attributes has not yet been examined, even though MSN spines and glutamatergic synapse properties are sensitive to exogenously applied estradiol. Thus, we hypothesized that MSN dendritic spine attributes would differ by estrous cycle phase. To test this hypothesis, brains from adult male rats and female rats in diestrus, proestrus AM, proestrus PM, and estrus were processed for Rapid Golgi-Cox staining. MSN dendritic spine density, size, and type were analyzed in the NAc core, NAc shell, and CPu. Overall spine size differed across estrous cycle phases in female NAc core and NAc shell, and spine length differed across estrous cycle phase in NAc shell and CPu. Consistent with previous work, dendritic spine density was increased in the NAc core compared to the NAc shell and CPu, independent of sex and estrous cycle. Spine attributes in all striatal regions did not differ by sex when estrous cycle was disregarded. These results indicate, for the first time, that estrous cycle phase impacts dendritic spine plasticity in striatal regions, providing a neuroanatomical avenue by which sex-specific hormone fluctuations can impact striatal function and disorders.
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Affiliation(s)
- Anna LS Beeson
- Department of Biological Sciences, NC State University, Raleigh, USA
- Graduate Program in Biology, NC State University, Raleigh, USA
| | - John Meitzen
- Department of Biological Sciences, NC State University, Raleigh, USA
- Comparative Medicine Institute, NC State University, Raleigh, USA
- Center for Human Health and the Environment, NC State University, Raleigh, USA
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Wiest C, He S, Duchet B, Pogosyan A, Benjaber M, Denison T, Hasegawa H, Ashkan K, Baig F, Bertaina I, Morgante F, Pereira EA, Torrecillos F, Tan H. Evoked resonant neural activity in subthalamic local field potentials reflects basal ganglia network dynamics. Neurobiol Dis 2023; 178:106019. [PMID: 36706929 PMCID: PMC7614125 DOI: 10.1016/j.nbd.2023.106019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/11/2023] [Accepted: 01/23/2023] [Indexed: 01/25/2023] Open
Abstract
Evoked resonant neural activity (ERNA) is induced by subthalamic deep brain stimulation (DBS) and was recently suggested as a marker of lead placement and contact selection in Parkinson's disease. Yet, its underlying mechanisms and how it is modulated by stimulation parameters are unclear. Here, we recorded local field potentials from 27 Parkinson's disease patients, while leads were externalised to scrutinise the ERNA. First, we show that ERNA in the time series waveform and spectrogram likely represent the same activity, which was contested before. Second, our results show that the ERNA has fast and slow dynamics during stimulation, consistent with the synaptic failure hypothesis. Third, we show that ERNA parameters are modulated by different DBS frequencies, intensities, medication states and stimulation modes (continuous DBS vs. adaptive DBS). These results suggest the ERNA might prove useful as a predictor of the best DBS frequency and lowest effective intensity in addition to contact selection. Changes with levodopa and DBS mode suggest that the ERNA may indicate the state of the cortico-basal ganglia circuit making it a putative biomarker to track clinical state in adaptive DBS.
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Affiliation(s)
- Christoph Wiest
- Medical Research Council Brain Network Dynamics Unit, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Shenghong He
- Medical Research Council Brain Network Dynamics Unit, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Benoit Duchet
- Medical Research Council Brain Network Dynamics Unit, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Alek Pogosyan
- Medical Research Council Brain Network Dynamics Unit, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Moaad Benjaber
- Medical Research Council Brain Network Dynamics Unit, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Timothy Denison
- Medical Research Council Brain Network Dynamics Unit, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Harutomo Hasegawa
- Department of Neurosurgery, King's College Hospital, Denmark Hill, London, UK
| | - Keyoumars Ashkan
- Department of Neurosurgery, King's College Hospital, Denmark Hill, London, UK
| | - Fahd Baig
- Medical Research Council Brain Network Dynamics Unit, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK; Neurosciences Research Centre, Molecular and Clinical Sciences Institute, St. George's, University of London, London, UK
| | - Ilaria Bertaina
- Neurosciences Research Centre, Molecular and Clinical Sciences Institute, St. George's, University of London, London, UK; Neurology Department, Neurocenter of Southern Switzerland, Ente Ospedaliero Cantonale, Lugano, Switzerland
| | - Francesca Morgante
- Neurosciences Research Centre, Molecular and Clinical Sciences Institute, St. George's, University of London, London, UK
| | - Erlick A Pereira
- Neurosciences Research Centre, Molecular and Clinical Sciences Institute, St. George's, University of London, London, UK
| | - Flavie Torrecillos
- Medical Research Council Brain Network Dynamics Unit, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Huiling Tan
- Medical Research Council Brain Network Dynamics Unit, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK.
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Martel AC, Galvan A. Connectivity of the corticostriatal and thalamostriatal systems in normal and parkinsonian states: An update. Neurobiol Dis 2022; 174:105878. [PMID: 36183947 PMCID: PMC9976706 DOI: 10.1016/j.nbd.2022.105878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 09/23/2022] [Accepted: 09/28/2022] [Indexed: 02/06/2023] Open
Abstract
The striatum receives abundant glutamatergic afferents from the cortex and thalamus. These inputs play a major role in the functions of the striatal neurons in normal conditions, and are significantly altered in pathological states, such as Parkinson's disease. This review summarizes the current knowledge of the connectivity of the corticostriatal and thalamostriatal pathways, with emphasis on the most recent advances in the field. We also discuss novel findings regarding structural changes in cortico- and thalamostriatal connections that occur in these connections as a consequence of striatal loss of dopamine in parkinsonism.
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Affiliation(s)
- Anne-Caroline Martel
- Emory National Primate Research Center, Emory University, Atlanta, GA, USA; Udall Center of Excellence for Parkinson's Disease Research, Emory University, Atlanta, GA, USA
| | - Adriana Galvan
- Emory National Primate Research Center, Emory University, Atlanta, GA, USA; Udall Center of Excellence for Parkinson's Disease Research, Emory University, Atlanta, GA, USA; Department of Neurology, School of Medicine, Emory University, Atlanta, GA, USA.
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12
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Consequences of Acute or Chronic Methylphenidate Exposure Using Ex Vivo Neurochemistry and In Vivo Electrophysiology in the Prefrontal Cortex and Striatum of Rats. Int J Mol Sci 2022; 23:ijms23158588. [PMID: 35955717 PMCID: PMC9369023 DOI: 10.3390/ijms23158588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 07/29/2022] [Accepted: 08/01/2022] [Indexed: 01/27/2023] Open
Abstract
Methylphenidate (MPH) is among the main drugs prescribed to treat patients with attention-deficit and hyperactivity disease (ADHD). MPH blocks both the norepinephrine and dopamine reuptake transporters (NET and DAT, respectively). Our study was aimed at further understanding the mechanisms by which MPH could modulate neurotransmitter efflux, using ex vivo radiolabelled neurotransmitter assays isolated from rats. Here, we observed significant dopamine and norepinephrine efflux from the prefrontal cortex (PFC) after MPH (100 µM) exposure. Efflux was mediated by both dopamine and norepinephrine terminals. In the striatum, MPH (100 µM) triggered dopamine efflux through both sodium- and vesicular-dependent mechanisms. Chronic MPH exposure (4 mg/kg/day/animal, voluntary oral intake) for 15 days, followed by a 28-day washout period, increased the firing rate of PFC pyramidal neurons, assessed by in vivo extracellular single-cell electrophysiological recordings, without altering the responses to locally applied NMDA, via micro-iontophoresis. Furthermore, chronic MPH treatment resulted in decreased efficiency of extracellular dopamine to modulate NMDA-induced firing activities of medium spiny neurons in the striatum, together with lower MPH-induced (100 µM) dopamine outflow, suggesting desensitization to both dopamine and MPH in striatal regions. These results indicate that MPH can modulate neurotransmitter efflux in brain regions enriched with dopamine and/or norepinephrine terminals. Further, long-lasting alterations of striatal and prefrontal neurotransmission were observed, even after extensive washout periods. Further studies will be needed to understand the clinical implications of these findings.
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13
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Xin J, Shan W, Li J, Yu H, Zuo Z. Activation of the Lateral Habenula-Ventral Tegmental Area Neural Circuit Contributes to Postoperative Cognitive Dysfunction in Mice. ADVANCED SCIENCE 2022; 9:e2202228. [PMID: 35616407 PMCID: PMC9353455 DOI: 10.1002/advs.202202228] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 05/01/2022] [Indexed: 02/05/2023]
Abstract
Postoperative cognitive dysfunction (POCD) is common and is associated with poor outcome. Neural circuit involvement in POCD is unknown. Lateral habenula (LHb) that regulates coping and depression‐like behaviors after aversive stimuli is activated by surgery in the previous study. Here, surgery activated LHb and ventral tegmental area (VTA) are presented. VTA is known to receive projections from LHb and project to the prefrontal cortex and hippocampus. Direct chemogenetic inhibition of LHb or damaging LHb attenuates surgery‐induced learning and memory impairment, N‐methyl‐d‐aspartate (NMDA) receptor activation, endoplasmic reticulum stress, inflammatory responses and cell injury in the VTA, and activation of rostromedial tegmental nucleus, an intermediate station to connect LHb with VTA. LHb inhibition preserves dendritic spine density in the prefrontal cortex and hippocampus. Retrograde inhibition of LHb via its projections to VTA attenuated surgery‐induced learning and memory dysfunction is observed. Retrograde activation of LHb induced learning and memory dysfunction is observed. Inhibition of NMDA receptors, dopamine synthesis, and endoplasmic reticulum stress in the VTA reduced surgery‐induced learning and memory impairment, inflammatory responses, and cell injury are observed. These results suggest that surgery activates the LHb‐VTA neural circuit, which contributes to POCD and neuropathological changes in the brain. These novel findings represent initial evidence for neural circuit involvement in surgery effects.
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Affiliation(s)
- Juan Xin
- Department of Anesthesiology University of Virginia Charlottesville VA 22908 USA
- Department of Anesthesiology West China Hospital Sichuan University Chengdu Sichuan 610041 China
| | - Weiran Shan
- Department of Anesthesiology University of Virginia Charlottesville VA 22908 USA
| | - Jun Li
- Department of Anesthesiology University of Virginia Charlottesville VA 22908 USA
| | - Hai Yu
- Department of Anesthesiology University of Virginia Charlottesville VA 22908 USA
- Department of Anesthesiology West China Hospital Sichuan University Chengdu Sichuan 610041 China
| | - Zhiyi Zuo
- Department of Anesthesiology University of Virginia Charlottesville VA 22908 USA
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14
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Adaptive changes in striatal projection neurons explain the long duration response and the emergence of dyskinesias in patients with Parkinson's disease. J Neural Transm (Vienna) 2022; 129:497-503. [PMID: 35538324 PMCID: PMC9188504 DOI: 10.1007/s00702-022-02510-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 04/28/2022] [Indexed: 11/06/2022]
Abstract
Neuronal activity in the brain is tightly regulated. During operation in real time, for instance, feedback and feedforward loops limit excessive excitation. In addition, cell autonomous processes ensure that neurons’ average activity is restored to a setpoint in response to chronic perturbations. These processes are summarized as homeostatic plasticity (Turrigiano in Cold Spring Harb Perspect Biol 4:a005736–a005736, 2012). In the basal ganglia, information is mainly transmitted through disinhibition, which already constraints the possible range of neuronal activity. When this tightly adjusted system is challenged by the chronic decline in dopaminergic neurotransmission in Parkinson’s disease (PD), homeostatic plasticity aims to compensate for this perturbation. We here summarize recent experimental work from animals demonstrating that striatal projection neurons adapt excitability and morphology in response to chronic dopamine depletion and substitution. We relate these cellular processes to clinical observations in patients with PD that cannot be explained by the classical model of basal ganglia function. These include the long duration response to dopaminergic medication that takes weeks to develop and days to wear off. Moreover, dyskinesias are considered signs of excessive dopaminergic neurotransmission in Parkinson’s disease, but they are typically more severe on the body side that is more strongly affected by dopamine depletion. We hypothesize that these clinical observations can be explained by homeostatic plasticity in the basal ganglia, suggesting that plastic changes in response to chronic dopamine depletion and substitution need to be incorporated into models of basal ganglia function. In addition, better understanding the molecular mechanism of homeostatic plasticity might offer new treatment options to avoid motor complications in patients with PD.
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15
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Song B, Feldmann JW, Cao S, Feitosa M, Kong Y, Kim W, Schweitzer A, Leblanc P, Schweitzer JS, Kim KS. A Pitx3-deficient developmental mouse model for fine motor, olfactory, and gastrointestinal symptoms of Parkinson's disease. Neurobiol Dis 2022; 170:105777. [PMID: 35636646 PMCID: PMC9425627 DOI: 10.1016/j.nbd.2022.105777] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 05/01/2022] [Accepted: 05/21/2022] [Indexed: 10/26/2022] Open
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16
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Ying L, Zhao J, Ye Y, Liu Y, Xiao B, Xue T, Zhu H, Wu Y, He J, Qin S, Jiang Y, Guo F, Zhang L, Liu N, Zhang L. Regulation of Cdc42 signaling by the dopamine D2 receptor in a mouse model of Parkinson's disease. Aging Cell 2022; 21:e13588. [PMID: 35415964 PMCID: PMC9124300 DOI: 10.1111/acel.13588] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 01/29/2022] [Accepted: 02/26/2022] [Indexed: 12/02/2022] Open
Abstract
Substantial spine loss in striatal medium spiny neurons (MSNs) and abnormal behaviors are common features of Parkinson's disease (PD). The caudate putamen (CPu) mainly contains MSNs expressing dopamine D1 receptor (dMSNs) and dopamine D2 receptor (iMSNs) exerting critical effects on motor and cognition behavior. However, the molecular mechanisms contributing to spine loss and abnormal behaviors in dMSNs and iMSNs under parkinsonian state remain unknown. In the present study, we revealed that Cell division control protein 42 (Cdc42) signaling was significantly decreased in the caudate putamen (CPu) in parkinsonian mice. In addition, overexpression of constitutively active Cdc42 in the CPu reversed spine abnormalities and improved the behavior deficits in parkinsonian mice. Utilizing conditional dopamine D1 receptor (D1R) or D2 receptor (D2R) knockout mice, we found that such a decrease under parkinsonian state was further reduced by conditional knockout of the D2R but not D1R. Moreover, the thin spine loss in iMSNs and deficits in motor coordination and cognition induced by conditional knockout of D2R were reversed by overexpression of constitutively active Cdc42 in the CPu. Additionally, conditional knockout of Cdc42 from D2R‐positive neurons in the CPu was sufficient to induce spine and behavior deficits similar to those observed in parkinsonian mice. Overall, our results indicate that impaired Cdc42 signaling regulated by D2R plays an important role in spine loss and behavioral deficits in PD.
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Affiliation(s)
- Li Ying
- Key Laboratory of Functional Proteomics of Guangdong Province Key Laboratory of Mental Health of the Ministry of Education School of Basic Medical Sciences Pediatric Center of Zhujiang Hospital Center for Orthopaedic Surgery of the Third Affiliated Hospital Southern Medical University Guangzhou China
| | - Jinlan Zhao
- Key Laboratory of Functional Proteomics of Guangdong Province Key Laboratory of Mental Health of the Ministry of Education School of Basic Medical Sciences Pediatric Center of Zhujiang Hospital Center for Orthopaedic Surgery of the Third Affiliated Hospital Southern Medical University Guangzhou China
| | - Yingshan Ye
- Key Laboratory of Functional Proteomics of Guangdong Province Key Laboratory of Mental Health of the Ministry of Education School of Basic Medical Sciences Pediatric Center of Zhujiang Hospital Center for Orthopaedic Surgery of the Third Affiliated Hospital Southern Medical University Guangzhou China
| | - Yutong Liu
- Key Laboratory of Functional Proteomics of Guangdong Province Key Laboratory of Mental Health of the Ministry of Education School of Basic Medical Sciences Pediatric Center of Zhujiang Hospital Center for Orthopaedic Surgery of the Third Affiliated Hospital Southern Medical University Guangzhou China
| | - Bin Xiao
- Key Laboratory of Functional Proteomics of Guangdong Province Key Laboratory of Mental Health of the Ministry of Education School of Basic Medical Sciences Pediatric Center of Zhujiang Hospital Center for Orthopaedic Surgery of the Third Affiliated Hospital Southern Medical University Guangzhou China
| | - Tao Xue
- Key Laboratory of Functional Proteomics of Guangdong Province Key Laboratory of Mental Health of the Ministry of Education School of Basic Medical Sciences Pediatric Center of Zhujiang Hospital Center for Orthopaedic Surgery of the Third Affiliated Hospital Southern Medical University Guangzhou China
| | - Hangfei Zhu
- Key Laboratory of Functional Proteomics of Guangdong Province Key Laboratory of Mental Health of the Ministry of Education School of Basic Medical Sciences Pediatric Center of Zhujiang Hospital Center for Orthopaedic Surgery of the Third Affiliated Hospital Southern Medical University Guangzhou China
| | - Yue Wu
- Key Laboratory of Functional Proteomics of Guangdong Province Key Laboratory of Mental Health of the Ministry of Education School of Basic Medical Sciences Pediatric Center of Zhujiang Hospital Center for Orthopaedic Surgery of the Third Affiliated Hospital Southern Medical University Guangzhou China
| | - Jing He
- Key Laboratory of Functional Proteomics of Guangdong Province Key Laboratory of Mental Health of the Ministry of Education School of Basic Medical Sciences Pediatric Center of Zhujiang Hospital Center for Orthopaedic Surgery of the Third Affiliated Hospital Southern Medical University Guangzhou China
| | - Sifei Qin
- Key Laboratory of Functional Proteomics of Guangdong Province Key Laboratory of Mental Health of the Ministry of Education School of Basic Medical Sciences Pediatric Center of Zhujiang Hospital Center for Orthopaedic Surgery of the Third Affiliated Hospital Southern Medical University Guangzhou China
| | - Yong Jiang
- Key Laboratory of Functional Proteomics of Guangdong Province Key Laboratory of Mental Health of the Ministry of Education School of Basic Medical Sciences Pediatric Center of Zhujiang Hospital Center for Orthopaedic Surgery of the Third Affiliated Hospital Southern Medical University Guangzhou China
| | - Fukun Guo
- Division of Experimental Hematology and Cancer Biology Children's Hospital Research Foundation Cincinnati Ohio USA
| | - Lin Zhang
- Department of Histology and Embryology NMPA Key Laboratory for Safety Evaluation of Cosmetics Key Laboratory of Construction and Detection in Tissue Engineering of Guangdong Province School of Basic Medical Sciences Center for Orthopaedic Surgery of the Third Affiliated Hospital Southern Medical University Guangzhou China
| | - Nuyun Liu
- Laboratory Animal Center Elderly Health Services Research Center Southern Medical University Guangzhou China
| | - Lu Zhang
- Key Laboratory of Functional Proteomics of Guangdong Province Key Laboratory of Mental Health of the Ministry of Education School of Basic Medical Sciences Pediatric Center of Zhujiang Hospital Center for Orthopaedic Surgery of the Third Affiliated Hospital Southern Medical University Guangzhou China
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González-Granillo AE, Gnecco D, Díaz A, Garcés-Ramírez L, de la Cruz F, Juarez I, Morales-Medina JC, Flores G. Curcumin induces cortico-hippocampal neuronal reshaping and memory improvements in aged mice. J Chem Neuroanat 2022; 121:102091. [PMID: 35334275 DOI: 10.1016/j.jchemneu.2022.102091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 03/11/2022] [Accepted: 03/11/2022] [Indexed: 11/28/2022]
Abstract
Aging induces cognitive decline, reduces of synaptic plasticity and increases oxidative reactive species (ROS) in the central nervous system. Traditional medicine has long benefitted from naturally occurring molecules such as curcumin (diferuloymethane). Curcumin is extracted from the plant Curcuma longa and is known for its synaptic and antioxidant-related benefits. In this study, we tested the hypothesis that chronic curcumin treatment reduces cognitive and cellular effects of aging. Curcumin-treated mice showed improved learning and memory using the Morris Water Maze and novel object recognition task. In addition, using the Golgi-Cox stain, curcumin treatment increased spine density in all evaluated regions and increased dendritic arborization in the prefrontal cortex (PFC) layer 3 and CA3 subregion of the hippocampus. Moreover, chronic curcumin exposure increased synaptophysin and actin expression and reduced glial fibrillary acidic protein expression, a marker of astrocytes, in the hippocampus (CA1 and CA3 subregions), while simultaneously reducing the ROS-related molecule, metallothionein 3 expression in the PFC and hippocampus. Collectively, these novel findings suggest that curcumin reduces cognitive, neuronal and astrocytic signs of aging in mice.
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Affiliation(s)
- Aldo Efrain González-Granillo
- Lab. Neuropsiquiatría, Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla, 14 Sur 6301, San Manuel, 72570 Puebla, Mexico; Departamento de Fisiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, Mexico
| | - Dino Gnecco
- Centro de Química, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | - Alfonso Díaz
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | - Linda Garcés-Ramírez
- Departamento de Fisiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, Mexico
| | - Fidel de la Cruz
- Departamento de Fisiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, Mexico
| | - Ismael Juarez
- Laboratorio de Fisiología, Facultad de Estomatología, Benemérita Universidad Autónoma de Puebla, Puebla 72410, Mexico
| | - Julio César Morales-Medina
- Centro de Investigación en Reproducción Animal, CINVESTAV, Universidad Autónoma de Tlaxcala, AP 62, CP 90000 Tlaxcala, Mexico
| | - Gonzalo Flores
- Lab. Neuropsiquiatría, Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla, 14 Sur 6301, San Manuel, 72570 Puebla, Mexico.
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18
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Fernández-Pérez A, Sanz-Magro A, Moratalla R, Vallejo M. Restricting feeding to dark phase fails to entrain circadian activity and energy expenditure oscillations in Pitx3-mutant Aphakia mice. Cell Rep 2022; 38:110241. [PMID: 35021074 DOI: 10.1016/j.celrep.2021.110241] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 11/19/2021] [Accepted: 12/16/2021] [Indexed: 01/01/2023] Open
Abstract
Metabolic homeostasis is under circadian regulation to adapt energy requirements to light-dark cycles. Feeding cycles are regulated by photic stimuli reaching the suprachiasmatic nucleus via retinohypothalamic axons and by nutritional information involving dopaminergic neurotransmission. Previously, we reported that Pitx3-mutant Aphakia mice with altered development of the retinohypothalamic tract and the dopaminergic neurons projecting to the striatum, are resistant to locomotor and metabolic entrainment by time-restricted feeding. In their Matters Arising article, Scarpa et al. (2022) challenge this conclusion using mice from the same strain but following a different experimental paradigm involving calorie restriction. Here, we address their concerns by extending the analyses of our previous data, by identifying important differences in the experimental design between both studies and by presenting additional results on the dopaminergic deficit in the brain of Aphakia mice. This Matters Arising Response article addresses the Matters Arising article by Scarpa et al. (2022), published concurrently in Cell Reports.
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Affiliation(s)
- Antonio Fernández-Pérez
- Instituto de Investigaciones Biomédicas Alberto Sols, Consejo Superior de Investigaciones Científicas /Universidad Autónoma de Madrid, Calle Arturo Duperier 4, 28029 Madrid, Spain; Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas CIBERDEM, Madrid, Spain
| | - Adrián Sanz-Magro
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, and CIBERNED, Instituto de Salud Carlos III, 28002 Madrid, Spain
| | - Rosario Moratalla
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, and CIBERNED, Instituto de Salud Carlos III, 28002 Madrid, Spain
| | - Mario Vallejo
- Instituto de Investigaciones Biomédicas Alberto Sols, Consejo Superior de Investigaciones Científicas /Universidad Autónoma de Madrid, Calle Arturo Duperier 4, 28029 Madrid, Spain; Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas CIBERDEM, Madrid, Spain.
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19
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Allichon MC, Ortiz V, Pousinha P, Andrianarivelo A, Petitbon A, Heck N, Trifilieff P, Barik J, Vanhoutte P. Cell-Type-Specific Adaptions in Striatal Medium-Sized Spiny Neurons and Their Roles in Behavioral Responses to Drugs of Abuse. Front Synaptic Neurosci 2022; 13:799274. [PMID: 34970134 PMCID: PMC8712310 DOI: 10.3389/fnsyn.2021.799274] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 11/26/2021] [Indexed: 12/21/2022] Open
Abstract
Drug addiction is defined as a compulsive pattern of drug-seeking- and taking- behavior, with recurrent episodes of abstinence and relapse, and a loss of control despite negative consequences. Addictive drugs promote reinforcement by increasing dopamine in the mesocorticolimbic system, which alters excitatory glutamate transmission within the reward circuitry, thereby hijacking reward processing. Within the reward circuitry, the striatum is a key target structure of drugs of abuse since it is at the crossroad of converging glutamate inputs from limbic, thalamic and cortical regions, encoding components of drug-associated stimuli and environment, and dopamine that mediates reward prediction error and incentive values. These signals are integrated by medium-sized spiny neurons (MSN), which receive glutamate and dopamine axons converging onto their dendritic spines. MSN primarily form two mostly distinct populations based on the expression of either DA-D1 (D1R) or DA-D2 (D2R) receptors. While a classical view is that the two MSN populations act in parallel, playing antagonistic functional roles, the picture seems much more complex. Herein, we review recent studies, based on the use of cell-type-specific manipulations, demonstrating that dopamine differentially modulates dendritic spine density and synapse formation, as well as glutamate transmission, at specific inputs projecting onto D1R-MSN and D2R-MSN to shape persistent pathological behavioral in response to drugs of abuse. We also discuss the identification of distinct molecular events underlying the detrimental interplay between dopamine and glutamate signaling in D1R-MSN and D2R-MSN and highlight the relevance of such cell-type-specific molecular studies for the development of innovative strategies with potential therapeutic value for addiction. Because drug addiction is highly prevalent in patients with other psychiatric disorders when compared to the general population, we last discuss the hypothesis that shared cellular and molecular adaptations within common circuits could explain the co-occurrence of addiction and depression. We will therefore conclude this review by examining how the nucleus accumbens (NAc) could constitute a key interface between addiction and depression.
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Affiliation(s)
- Marie-Charlotte Allichon
- CNRS, UMR 8246, Neuroscience Paris Seine, Paris, France.,INSERM, UMR-S 1130, Neuroscience Paris Seine, Institute of Biology Paris Seine, Paris, France.,Sorbonne Université, UPMC Université Paris 06, UM CR18, Neuroscience Paris Seine, Paris, France
| | - Vanesa Ortiz
- Université Côte d'Azur, Nice, France.,Institut de Pharmacologie Moléculaire et Cellulaire, CNRS UMR 7275, Valbonne, France
| | - Paula Pousinha
- Université Côte d'Azur, Nice, France.,Institut de Pharmacologie Moléculaire et Cellulaire, CNRS UMR 7275, Valbonne, France
| | - Andry Andrianarivelo
- CNRS, UMR 8246, Neuroscience Paris Seine, Paris, France.,INSERM, UMR-S 1130, Neuroscience Paris Seine, Institute of Biology Paris Seine, Paris, France.,Sorbonne Université, UPMC Université Paris 06, UM CR18, Neuroscience Paris Seine, Paris, France
| | - Anna Petitbon
- Université Bordeaux, INRAE, Bordeaux INP, NutriNeuro, Bordeaux, France
| | - Nicolas Heck
- CNRS, UMR 8246, Neuroscience Paris Seine, Paris, France.,INSERM, UMR-S 1130, Neuroscience Paris Seine, Institute of Biology Paris Seine, Paris, France.,Sorbonne Université, UPMC Université Paris 06, UM CR18, Neuroscience Paris Seine, Paris, France
| | - Pierre Trifilieff
- Université Bordeaux, INRAE, Bordeaux INP, NutriNeuro, Bordeaux, France
| | - Jacques Barik
- Université Côte d'Azur, Nice, France.,Institut de Pharmacologie Moléculaire et Cellulaire, CNRS UMR 7275, Valbonne, France
| | - Peter Vanhoutte
- CNRS, UMR 8246, Neuroscience Paris Seine, Paris, France.,INSERM, UMR-S 1130, Neuroscience Paris Seine, Institute of Biology Paris Seine, Paris, France.,Sorbonne Université, UPMC Université Paris 06, UM CR18, Neuroscience Paris Seine, Paris, France
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20
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Tendilla-Beltrán H, Coatl-Cuaya H, Meneses-Prado S, Vázquez-Roque RA, Brambila E, Tapia-Rodríguez M, Martín-Hernández D, Garcés-Ramírez L, Madrigal JLM, Leza JC, Flores G. Neuroplasticity and inflammatory alterations in the nucleus accumbens are corrected after risperidone treatment in a schizophrenia-related developmental model in rats. Schizophr Res 2021; 235:17-28. [PMID: 34298239 DOI: 10.1016/j.schres.2021.07.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 07/04/2021] [Accepted: 07/11/2021] [Indexed: 12/18/2022]
Abstract
Increased dopaminergic activity in the striatum underlies the neurobiology of psychotic symptoms in schizophrenia (SZ). Beyond the impaired connectivity among the limbic system, the excess of dopamine could lead to inflammation and oxidative/nitrosative stress. It has been suggested that atypical antipsychotic drugs attenuate psychosis not only due to their modulatory activity on the dopaminergic/serotonergic neurotransmission but also due to their anti-inflammatory/antioxidant effects. In such a manner, we assessed the effects of the atypical antipsychotic risperidone (RISP) on the structural neuroplasticity and biochemistry of the striatum in adult rats with neonatal ventral hippocampus lesion (NVHL), which is a developmental SZ-related model. RISP administration (0.25 mg/kg, i.p.) ameliorated the neuronal atrophy and the impairments in the morphology of the dendritic spines in the spiny projection neurons (SPNs) of the ventral striatum (nucleus accumbens: NAcc) in the NVHL rats. Also, RISP treatment normalized the pro-inflammatory pathways and induced the antioxidant activity of the nuclear factor (erythroid-derived 2)-like 2 (Nrf2) in this model. Our results point to the neurotrophic, anti-inflammatory, and antioxidant effects of RISP, together with its canonical antipsychotic mechanism, to enhance striatum function in animals with NVHL.
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Affiliation(s)
- Hiram Tendilla-Beltrán
- Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla (BUAP), Puebla 72570, Mexico; Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional (IPN), CDMX 11340, Mexico; Departamento de Farmacología y Toxicología, Facultad de Medicina, Universidad Complutense de Madrid (UCM), Madrid 28040, Spain; Instituto Universitario de Investigación en Neuroquímica (IUIN), UCM, Spain
| | - Heriberto Coatl-Cuaya
- Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla (BUAP), Puebla 72570, Mexico; Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional (IPN), CDMX 11340, Mexico
| | - Silvia Meneses-Prado
- Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla (BUAP), Puebla 72570, Mexico
| | | | | | - Miguel Tapia-Rodríguez
- Instituto de Investigaciones Biomédicas (IIBO), Universidad Nacional Autónoma de México (UNAM), CDMX 04510, Mexico
| | - David Martín-Hernández
- Servicio de Psiquiatría del Niño y del Adolescente, Instituto de Psiquiatría y Salud Mental, Hospital General Universitario Gregorio Marañón, Facultad de Medicina, Universidad Complutense, IiSGM, CIBERSAM, Madrid, Spain
| | - Linda Garcés-Ramírez
- Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional (IPN), CDMX 11340, Mexico
| | - José L M Madrigal
- Departamento de Farmacología y Toxicología, Facultad de Medicina, Universidad Complutense de Madrid (UCM), Madrid 28040, Spain; Instituto Universitario de Investigación en Neuroquímica (IUIN), UCM, Spain; Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Instituto de Investigación Sanitaria Hospital 12 de Octubre (Imas12), Madrid 28029, Spain
| | - Juan C Leza
- Departamento de Farmacología y Toxicología, Facultad de Medicina, Universidad Complutense de Madrid (UCM), Madrid 28040, Spain; Instituto Universitario de Investigación en Neuroquímica (IUIN), UCM, Spain; Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Instituto de Investigación Sanitaria Hospital 12 de Octubre (Imas12), Madrid 28029, Spain.
| | - Gonzalo Flores
- Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla (BUAP), Puebla 72570, Mexico.
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Orso B, Arnaldi D, Girtler N, Brugnolo A, Doglione E, Mattioli P, Biassoni E, Fancellu R, Massa F, Bauckneht M, Chiola S, Morbelli S, Nobili F, Pardini M. Dopaminergic and Serotonergic Degeneration and Cortical [ 18 F]Fluorodeoxyglucose Positron Emission Tomography in De Novo Parkinson's Disease. Mov Disord 2021; 36:2293-2302. [PMID: 34021923 DOI: 10.1002/mds.28654] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 04/28/2021] [Accepted: 05/02/2021] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Degeneration of the nigrostriatal dopaminergic (DA) and the raphe-thalamic serotonergic (SE) systems is among the earliest changes observed in Parkinson's disease (PD). The consequences of those changes on brain metabolism, especially regarding their impact on the cortex, are poorly understood. OBJECTIVES Using multi-tracer molecular imaging, we assessed in a cohort of drug-naive PD patients the association between cortical metabolism and DA and SE system deafferentation of either striatum or thalamus, and we explored whether this association was mediated by either striatum or thalamus metabolism. METHODS We recruited 96 drug-naive PD patients (aged 71.9 ± 7.5 years) who underwent [123 I]ioflupane single-photon emission computed tomography ([123 I]FP-CIT-SPECT) and brain [18 F]fluorodeoxyglucose positron emission tomography ([18 F]FDG-PET). We used a voxel-wise analysis of [18 F]FDG-PET images to correlate regional metabolism with striatal DA and thalamic SE innervation as assessed using [123 I]FP-CIT-SPECT. RESULTS We found that [123 I]FP-CIT specific to nondisplaceable binding ratio (SBR) and glucose metabolism positively correlated with one another in the deep gray matter (thalamus: P = 0.001, r = 0.541; caudate P = 0.001, r = 0.331; putamen P = 0.001, r = 0.423). We then observed a direct correlation between temporoparietal metabolism and caudate DA innervation, as well as a direct correlation between prefrontal metabolism and thalamus SE innervation. The effect of caudate [123 I]FP-CIT SBR values on temporoparietal metabolism was mediated by caudate metabolic values (percentage mediated: 89%, P-value = 0.008), and the effect of thalamus [123 I]FP-CIT SBR values on prefrontal metabolism was fully mediated by thalamus metabolic values (P < 0.001). CONCLUSIONS These data suggest that the impact of deep gray matter monoaminergic deafferentation on cortical function is mediated by striatal and thalamic metabolism in drug-naive PD. © 2021 International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Beatrice Orso
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy
| | - Dario Arnaldi
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy.,IRCCS Ospedale Policlinico S. Martino, Genoa, Italy
| | - Nicola Girtler
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy.,IRCCS Ospedale Policlinico S. Martino, Genoa, Italy
| | - Andrea Brugnolo
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy.,IRCCS Ospedale Policlinico S. Martino, Genoa, Italy
| | | | - Pietro Mattioli
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy
| | - Erica Biassoni
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy
| | | | - Federico Massa
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy
| | - Matteo Bauckneht
- IRCCS Ospedale Policlinico S. Martino, Genoa, Italy.,Department of Health Science (DISSAL), University of Genoa, Genoa, Italy
| | - Silvia Chiola
- IRCCS Ospedale Policlinico S. Martino, Genoa, Italy.,Humanitas Clinical and Research Center-IRCCS, Rozzano, Italy
| | - Silvia Morbelli
- IRCCS Ospedale Policlinico S. Martino, Genoa, Italy.,Department of Health Science (DISSAL), University of Genoa, Genoa, Italy
| | - Flavio Nobili
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy.,IRCCS Ospedale Policlinico S. Martino, Genoa, Italy
| | - Matteo Pardini
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy.,IRCCS Ospedale Policlinico S. Martino, Genoa, Italy
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22
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Aguilar-Hernández L, Vázquez-Hernández AJ, de-Lima-Mar DF, Vázquez-Roque RA, Tendilla-Beltrán H, Flores G. Memory and dendritic spines loss, and dynamic dendritic spines changes are age-dependent in the rat. J Chem Neuroanat 2020; 110:101858. [PMID: 32950615 DOI: 10.1016/j.jchemneu.2020.101858] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/16/2020] [Accepted: 09/12/2020] [Indexed: 12/12/2022]
Abstract
Brain aging is a widely studied process, but due to its complexity, much of its progress is unknown. There are many studies linking memory loss and reduced interneuronal communication with brain aging. However, only a few studies compare young and old animals. In the present study, in male rats aged 3, 6, and 18 months, we analyzed the locomotor activity and also short and long-term memory using the novel object recognition test (NORT), in addition to evaluating the dendritic length and the number of dendritic spines in the prefrontal cortex (PFC) and in the CA1, CA3 and DG regions of the dorsal hippocampus using Golgi-Cox staining. We also analyzed the types of dendritic spines in the aforementioned regions. 6- and 18-month old animals showed a reduction in locomotor activity, while long-term memory deficit was observed in 18-month old rats. At 18 months old, the dendritic length was reduced in all the studied regions. The dendritic spine number was also reduced in layer 5 of the PFC, and the CA1 and CA3 of the hippocampus. The dynamics of dendritic spines changed with age, with a reduction of the mushroom spines in all the studied regions, with an increase of the stubby spines in all the studied regions except from the CA3 region, that showed a reduction. Our data suggest that age causes changes in behavior, which may be the result of morphological changes at the dendrite level, both in their length and in the dynamics of their spines.
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Affiliation(s)
- Leonardo Aguilar-Hernández
- Laboratorio de Neuropsiquiatría, Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla (BUAP), Puebla, 72570, Mexico; Laboratorio de Fisiología de la Conducta, Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional (IPN), CDMX, 07738, Mexico
| | - Andrea Judith Vázquez-Hernández
- Laboratorio de Neuropsiquiatría, Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla (BUAP), Puebla, 72570, Mexico; Laboratorio de Fisiología de la Conducta, Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional (IPN), CDMX, 07738, Mexico
| | - Diana Frida de-Lima-Mar
- Laboratorio de Neuropsiquiatría, Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla (BUAP), Puebla, 72570, Mexico
| | - Rubén Antonio Vázquez-Roque
- Laboratorio de Neuropsiquiatría, Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla (BUAP), Puebla, 72570, Mexico
| | - Hiram Tendilla-Beltrán
- Laboratorio de Neuropsiquiatría, Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla (BUAP), Puebla, 72570, Mexico; Laboratorio de Fisiología de la Conducta, Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional (IPN), CDMX, 07738, Mexico
| | - Gonzalo Flores
- Laboratorio de Neuropsiquiatría, Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla (BUAP), Puebla, 72570, Mexico.
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23
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Castela I, Hernandez LF. Shedding light on dyskinesias. Eur J Neurosci 2020; 53:2398-2413. [DOI: 10.1111/ejn.14777] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 04/30/2020] [Accepted: 05/01/2020] [Indexed: 01/07/2023]
Affiliation(s)
- Ivan Castela
- HM‐CINAC Hospital Universitario HM Puerta del Sur Fundación de Investigación HM Hospitales Madrid Spain
- Network Center for Biomedical Research in Neurodegenerative Diseases (CIBERNED) Carlos III Health Institute Madrid Spain
| | - Ledia F. Hernandez
- HM‐CINAC Hospital Universitario HM Puerta del Sur Fundación de Investigación HM Hospitales Madrid Spain
- Network Center for Biomedical Research in Neurodegenerative Diseases (CIBERNED) Carlos III Health Institute Madrid Spain
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24
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Suarez LM, Solis O, Sanz-Magro A, Alberquilla S, Moratalla R. Dopamine D1 Receptors Regulate Spines in Striatal Direct-Pathway and Indirect-Pathway Neurons. Mov Disord 2020; 35:1810-1821. [PMID: 32643147 DOI: 10.1002/mds.28174] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 05/21/2020] [Accepted: 05/26/2020] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Dopamine transmission is involved in the maintenance of the structural plasticity of direct-pathway and indirect-pathway striatal projection neurons (d-SPNs and i-SPNs, respectively). The lack of dopamine in Parkinson's disease produces synaptic remodeling in both types of SPNs, reducing the length of the dendritic arbor and spine density and increasing the intrinsic excitability. Meanwhile, the elevation of dopamine levels by levodopa recovers these alterations selectively in i-SPNs. However, little is known about the specific role of the D1 receptor (D1R) in these alterations. METHODS To explore the specific role of D1R in the synaptic remodeling of SPNs, we used knockout D1R mice (D1R-/- ) and wild-type mice crossed with drd2-enhanced green fluorescent protein (eGFP) to identify d-SPNs and i-SPNs. Corticostriatal slices were used for reconstruction of the dendritic arbors after Lucifer yellow intracellular injection and for whole-cell recordings in naïve and parkinsonian mice treated with saline or levodopa. RESULTS The genetic inactivation of D1R reduces the length of the dendritic tree and the spine density in all SPNs, although more so in d-SPNs, which also increases their spiking. In parkinsonian D1R-/- mice, the spine density decreases in i-SPNs, and this spine loss recovers after chronic levodopa. CONCLUSIONS D1R is essential for the maintenance of spine plasticity in d-SPNs but also affects i-SPNs, indicating an important crosstalk between these 2 types of neurons. © 2020 International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Luz M Suarez
- Cajal Institute, Spanish National Research Council (CSIC), Madrid, Spain.,Network Center for Biomedical Research in Neurodegenerative Diseases (CIBERNED), Carlos III Institute of Health (ISCIII), Madrid, Spain
| | - Oscar Solis
- Cajal Institute, Spanish National Research Council (CSIC), Madrid, Spain.,Network Center for Biomedical Research in Neurodegenerative Diseases (CIBERNED), Carlos III Institute of Health (ISCIII), Madrid, Spain
| | - Adrian Sanz-Magro
- Cajal Institute, Spanish National Research Council (CSIC), Madrid, Spain
| | - Samuel Alberquilla
- Cajal Institute, Spanish National Research Council (CSIC), Madrid, Spain.,Network Center for Biomedical Research in Neurodegenerative Diseases (CIBERNED), Carlos III Institute of Health (ISCIII), Madrid, Spain
| | - Rosario Moratalla
- Cajal Institute, Spanish National Research Council (CSIC), Madrid, Spain.,Network Center for Biomedical Research in Neurodegenerative Diseases (CIBERNED), Carlos III Institute of Health (ISCIII), Madrid, Spain
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25
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Carvajal-Flores FN, Díaz A, Flores-Gómez GD, de la Cruz F, Flores G. Phenylbutyrate ameliorates prefrontal cortex, hippocampus, and nucleus accumbens neural atrophy as well as synaptophysin and GFAP stress in aging mice. Synapse 2020; 74:e22177. [PMID: 32531811 DOI: 10.1002/syn.22177] [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: 03/27/2020] [Revised: 06/07/2020] [Accepted: 06/08/2020] [Indexed: 12/26/2022]
Abstract
Recent reports on brain aging suggest that oxidative stress and inflammatory processes contribute to aging. Interestingly, sodium phenylbutyrate (PBA) is an inhibitor of histone deacetylase, which has anti-inflammatory properties. Several reports have suggested the effect of PBA on learning and memory processes, however there are no studies of the effect of this inhibitor of histone deacetylase on aging. Consequently, in the present study, the effect of PBA was studied in 18-month-old mice. The animals were administered PBA for 2 months after locomotor activity treatment and Morris water maze tests were performed. The Golgi-Cox staining technique and immunohistochemistry for glial fibrillary acidic protein (GFAP) and synaptophysin were performed for the morphological procedures. The administration of PBA improves learning and memory according to the Morris water maze test compared to vehicle-treated animals, which had unchanged locomotor activity. Using Golgi-Cox staining, dendritic length and the number of dendritic spines were measured in limbic regions, such as the nucleus accumbens (NAcc), prefrontal cortex (PFC) layer 3, and the CA1 of the dorsal hippocampus. In addition, PBA increased the number of dendritic spines in the PFC, NAcc, and CA1 subregions of the hippocampus with an increase in dendritic length only in the CA1 region. Moreover, PBA reduced the levels of the GFAP and increased the levels of synaptophysin in the studied regions. Thus, PBA can be a useful pharmacological tool to prevent or delay synaptic plasticity damage and cognitive impairment caused by age.
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Affiliation(s)
| | - Alfonso Díaz
- Departamento de Farmacia, Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla (BUAP), Puebla, Mexico
| | - Gabriel D Flores-Gómez
- Departamento de Ciencias de la Salud, Licenciatura en Medicina, Universidad de las Américas Puebla, Cholula, Mexico
| | - Fidel de la Cruz
- Departamento de Fisiología, Escuela Nacional de Ciencias Biológica, Instituto Politécnico Nacional, Ciudad de Mexico, Mexico
| | - Gonzalo Flores
- Laboratorio de Neuropsiquiatría, Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla (BUAP), Puebla, Mexico
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26
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Boccalaro IL, Schwerdel C, Cristiá-Lara L, Fritschy JM, Rubi L. Dopamine depletion induces neuron-specific alterations of GABAergic transmission in the mouse striatum. Eur J Neurosci 2020; 52:3353-3374. [PMID: 32599671 DOI: 10.1111/ejn.14886] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 06/19/2020] [Accepted: 06/22/2020] [Indexed: 11/28/2022]
Abstract
Lack of dopamine (DA) in the striatum and the consequential dysregulation of thalamocortical circuits are major causes of motor impairments in Parkinson's disease. The striatum receives multiple cortical and subcortical afferents. Its role in movement control and motor skills learning is regulated by DA from the nigrostriatal pathway. In Parkinson's disease, DA loss affects striatal network activity and induces a functional imbalance of its output pathways, impairing thalamocortical function. Striatal projection neurons are GABAergic and form two functionally antagonistic pathways: the direct pathway, originating from DA receptor type 1-expressing medium spiny neurons (D1 R-MSN), and the indirect pathway, from D2 R-MSN. Here, we investigated whether DA depletion in mouse striatum also affects GABAergic function. We recorded GABAergic miniature IPSCs (mIPSC) and tonic inhibition from D1 R- and D2 R-MSN and used immunohistochemical labeling to study GABAA R function and subcellular distribution in DA-depleted and control mice. We observed slower decay kinetics and increased tonic inhibition in D1 R-MSN, while D2 R-MSN had increased mIPSC frequency after DA depletion. Perisomatic synapses containing the GABAA R subunits α1 or α2 were not affected, but there was a strong decrease in non-synaptic GABAA Rs containing these subunits, suggesting altered receptor trafficking. To broaden these findings, we also investigated GABAA Rs in GABAergic and cholinergic interneurons and found cell type-specific alterations in receptor distribution, likely reflecting changes in connectivity. Our results reveal that chronic DA depletion alters striatal GABAergic transmission, thereby affecting cellular and circuit activity. These alterations either result from pathological changes or represent a compensatory mechanism to counteract imbalance of output pathways.
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Affiliation(s)
- Ida Luisa Boccalaro
- Institute of Pharmacology and Toxicology, University of Zurich, Zurich, Switzerland
| | - Cornelia Schwerdel
- Institute of Pharmacology and Toxicology, University of Zurich, Zurich, Switzerland
| | | | - Jean-Marc Fritschy
- Institute of Pharmacology and Toxicology, University of Zurich, Zurich, Switzerland.,Neuroscience Center Zurich, University of Zurich and Federal Institute of Technology Zurich, Zurich, Switzerland
| | - Lena Rubi
- Institute of Pharmacology and Toxicology, University of Zurich, Zurich, Switzerland
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27
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Espadas I, Keifman E, Palomo-Garo C, Burgaz S, García C, Fernández-Ruiz J, Moratalla R. Beneficial effects of the phytocannabinoid Δ 9-THCV in L-DOPA-induced dyskinesia in Parkinson's disease. Neurobiol Dis 2020; 141:104892. [PMID: 32387338 DOI: 10.1016/j.nbd.2020.104892] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 04/17/2020] [Accepted: 04/27/2020] [Indexed: 02/07/2023] Open
Abstract
The antioxidant and CB2 receptor agonist properties of Δ9-tetrahydrocannabivarin (Δ9-THCV) afforded neuroprotection in experimental Parkinson's disease (PD), whereas its CB1 receptor antagonist profile at doses lower than 5 mg/kg caused anti-hypokinetic effects. In the present study, we investigated the anti-dyskinetic potential of Δ9-THCV (administered i.p. at 2 mg/kg for two weeks), which had not been investigated before. This objective was investigated after inducing dyskinesia by repeated administration of L-DOPA (i.p. at 10 mg/kg) in a genetic model of dopaminergic deficiency, Pitx3ak mutant mice, which serves as a useful model for testing anti-dyskinetic agents. The daily treatment of these mice with L-DOPA for two weeks progressively increased the time spent in abnormal involuntary movements (AIMs) and elevated their horizontal and vertical activities (as measured in a computer-aided actimeter), signs that reflected the dyskinetic state of these mice. Interestingly, when combined with L-DOPA from the first injection, Δ9-THCV delayed the appearance of all these signs and decreased their intensity, with a reduction in the levels of FosB protein and the histone pAcH3 (measured by immunohistochemistry), which had previously been found to be elevated in the basal ganglia in L-DOPA-induced dyskinesia. In addition to the anti-dyskinetic effects of Δ9-THCV when administered at the onset of L-DOPA treatment, Δ9-THCV was also effective in attenuating the intensity of dyskinesia when administered for three consecutive days once these signs were already present (two weeks after the onset of L-DOPA treatment). In summary, our data support the anti-dyskinetic potential of Δ9-THCV, both to delay the occurrence and to attenuate the magnitude of dyskinetic signs. Although further studies are clearly required to determine the clinical significance of these data in humans, the results nevertheless situate Δ9-THCV in a promising position for developing a cannabinoid-based therapy for patients with PD.
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Affiliation(s)
- Isabel Espadas
- Instituto Cajal-CSIC, Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), ISCIII, Madrid, Spain
| | | | - Cristina Palomo-Garo
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), ISCIII, Madrid, Spain; Instituto Universitario de Investigación en Neuroquímica, Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Universidad Complutense, Madrid, Spain; Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
| | - Sonia Burgaz
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), ISCIII, Madrid, Spain; Instituto Universitario de Investigación en Neuroquímica, Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Universidad Complutense, Madrid, Spain; Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
| | - Concepción García
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), ISCIII, Madrid, Spain; Instituto Universitario de Investigación en Neuroquímica, Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Universidad Complutense, Madrid, Spain; Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
| | - Javier Fernández-Ruiz
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), ISCIII, Madrid, Spain; Instituto Universitario de Investigación en Neuroquímica, Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Universidad Complutense, Madrid, Spain; Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain.
| | - Rosario Moratalla
- Instituto Cajal-CSIC, Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), ISCIII, Madrid, Spain.
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