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Tuduri P, Bouquier N, Girard B, Moutin E, Thouaye M, Perroy J, Bertaso F, Ster J. Modulation of Hippocampal Network Oscillation by PICK1-Dependent Cell Surface Expression of mGlu3 Receptors. J Neurosci 2022; 42:8897-8911. [PMID: 36202617 PMCID: PMC9698693 DOI: 10.1523/jneurosci.0063-22.2022] [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: 01/10/2022] [Revised: 09/27/2022] [Accepted: 09/30/2022] [Indexed: 12/29/2022] Open
Abstract
Metabotropic glutamate receptor Type 3 (mGlu3) controls the sleep/wake architecture, which plays a role in the glutamatergic pathophysiology of schizophrenia. Interestingly, mGlu3 receptor expression is decreased in the brain of schizophrenic patients. However, little is known about the molecular mechanisms regulating mGlu3 receptors at the cell membrane. Subcellular receptor localization is strongly dependent on protein-protein interactions. Here we show that mGlu3 interacts with PICK1 and that this scaffolding protein is important for mGlu3 surface expression and function in hippocampal primary cultures. Disruption of their interaction via an mGlu3 C-terminal mimicking peptide or an inhibitor of the PDZ domain of PICK1 altered the functional expression of mGlu3 receptors in neurons. We next investigated the impact of disrupting the mGlu3-PICK1 interaction on hippocampal theta oscillations in vitro and in vivo in WT male mice. We found a decreased frequency of theta oscillations in organotypic hippocampal slices, similar to what was previously observed in mGlu3 KO mice. In addition, hippocampal theta power was reduced during rapid eye movement sleep, non-rapid eye movement (NREM) sleep, and wake states after intraventricular administration of the mGlu3 C-terminal mimicking peptide. Targeting the mGlu3-PICK1 complex could thus be relevant to the pathophysiology of schizophrenia.SIGNIFICANCE STATEMENT Dysregulation of the glutamatergic system might play a role in the pathophysiology of schizophrenia. Metabotropic glutamate receptors Type 3 (mGlu3) have been proposed as potential targets for schizophrenia. Understanding the molecular mechanisms regulating mGlu3 receptor at the cell membrane is critical toward comprehending how their dysfunction contributes to the pathogenesis of schizophrenia. Here we describe that the binding of the signaling and scaffolding protein PICK1 to mGlu3 receptors is important for their localization and physiological functions. The identification of new proteins that associate specifically to mGlu3 receptors will advance our understanding of the regulatory mechanisms associated with their targeting and function and ultimately might provide new therapeutic strategies to counter these psychiatric conditions.
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Affiliation(s)
- Pola Tuduri
- Institut de Génomique Fonctionnelle, University of Montpellier, Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, Montpellier, 34094, France
| | - Nathalie Bouquier
- Institut de Génomique Fonctionnelle, University of Montpellier, Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, Montpellier, 34094, France
| | - Benoit Girard
- Institut de Génomique Fonctionnelle, University of Montpellier, Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, Montpellier, 34094, France
| | - Enora Moutin
- Institut de Génomique Fonctionnelle, University of Montpellier, Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, Montpellier, 34094, France
| | - Maxime Thouaye
- Institut de Génomique Fonctionnelle, University of Montpellier, Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, Montpellier, 34094, France
| | - Julie Perroy
- Institut de Génomique Fonctionnelle, University of Montpellier, Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, Montpellier, 34094, France
| | - Federica Bertaso
- Institut de Génomique Fonctionnelle, University of Montpellier, Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, Montpellier, 34094, France
| | - Jeanne Ster
- Institut de Génomique Fonctionnelle, University of Montpellier, Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, Montpellier, 34094, France
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Musa A, Khan S, Mujahid M, El-Gaby M. The shallow cognitive map hypothesis: A hippocampal framework for thought disorder in schizophrenia. SCHIZOPHRENIA (HEIDELBERG, GERMANY) 2022; 8:34. [PMID: 35853896 PMCID: PMC9261089 DOI: 10.1038/s41537-022-00247-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 03/11/2022] [Indexed: 12/31/2022]
Abstract
Memories are not formed in isolation. They are associated and organized into relational knowledge structures that allow coherent thought. Failure to express such coherent thought is a key hallmark of Schizophrenia. Here we explore the hypothesis that thought disorder arises from disorganized Hippocampal cognitive maps. In doing so, we combine insights from two key lines of investigation, one concerning the neural signatures of cognitive mapping, and another that seeks to understand lower-level cellular mechanisms of cognition within a dynamical systems framework. Specifically, we propose that multiple distinct pathological pathways converge on the shallowing of Hippocampal attractors, giving rise to disorganized Hippocampal cognitive maps and driving conceptual disorganization. We discuss the available evidence at the computational, behavioural, network, and cellular levels. We also outline testable predictions from this framework, including how it could unify major chemical and psychological theories of schizophrenia and how it can provide a rationale for understanding the aetiology and treatment of the disease.
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Affiliation(s)
- Ayesha Musa
- Green Templeton College, University of Oxford, Oxford, OX2 6HG, UK
| | - Safia Khan
- Green Templeton College, University of Oxford, Oxford, OX2 6HG, UK
| | - Minahil Mujahid
- St Anne's college, University of Oxford, Oxford, OX2 6HS, UK
| | - Mohamady El-Gaby
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, OX1 3SR, UK.
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Pradhan LK, Das SK. The Regulatory Role of Reticulons in Neurodegeneration: Insights Underpinning Therapeutic Potential for Neurodegenerative Diseases. Cell Mol Neurobiol 2021; 41:1157-1174. [PMID: 32504327 DOI: 10.1007/s10571-020-00893-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 05/29/2020] [Indexed: 02/06/2023]
Abstract
In the last few decades, cytoplasmic organellar dysfunction, such as that of the endoplasmic reticulum (ER), has created a new area of research interest towards the development of serious health maladies including neurodegenerative diseases. In this context, the extensively dispersed family of ER-localized proteins, i.e. reticulons (RTNs), is gaining interest because of its regulative control over neural regeneration. As most neurodegenerative diseases are pathologically manifested with the accretion of misfolded proteins with subsequent induction of ER stress, the regulatory role of RTNs in neural dysfunction cannot be ignored. With the limited information available in the literature, delineation of the functional connection between rising consequences of neurodegenerative diseases and RTNs need to be elucidated. In this review, we provide a broad overview on the recently revealed regulatory roles of reticulons in the pathophysiology of several health maladies, with special emphasis on neurodegeneration. Additionally, we have also recapitulated the decisive role of RTN4 in neurite regeneration and highlighted how neurodegeneration and proteinopathies are mechanistically linked with each other through specific RTN paralogues. With the recent findings advocating zebrafish Rtn4b (a mammalian Nogo-A homologue) downregulation following central nervous system (CNS) lesion, RTNs provides new insight into the CNS regeneration. However, there are controversies with respect to the role of Rtn4b in zebrafish CNS regeneration. Given these controversies, the connection between the unique regenerative capabilities of zebrafish CNS by distinct compensatory mechanisms and Rtn4b signalling pathway could shed light on the development of new therapeutic strategies against serious neurodegenerative diseases.
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Affiliation(s)
- Lilesh Kumar Pradhan
- Neurobiology Laboratory, Centre for Biotechnology, Siksha 'O' Anusandhan (Deemed To Be University), Kalinga Nagar, Bhubaneswar, 751003, India
| | - Saroj Kumar Das
- Neurobiology Laboratory, Centre for Biotechnology, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan (Deemed To Be University), Kalinga Nagar, Bhubaneswar, 751003, India.
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Yang J, Li L, Hong S, Zhang D, Zhou Y. Methamphetamine leads to the alterations of microRNA profiles in the nucleus accumbens of rats. PHARMACEUTICAL BIOLOGY 2020; 58:797-805. [PMID: 32893733 PMCID: PMC8641683 DOI: 10.1080/13880209.2020.1803366] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 07/07/2020] [Accepted: 07/26/2020] [Indexed: 06/11/2023]
Abstract
CONTEXT MicroRNA (miRNA) is an important regulator of gene expression. Methamphetamine (METH) induces a variety of alterations in different systems by affecting gene expression, but the effects of METH on miRNA profiles need to be elucidated. OBJECTIVES This study develops a rat model of METH addiction, and analyzes the expression profile alterations of miRNA in nucleus accumbens (NAc) of the METH-addicted rats. MATERIALS AND METHODS Sprague-Dawley rats were administered 10 mg/kg METH or vehicle twice a day for 4 weeks. The addictive behaviour of rats was estimated by CPP test. The pathological changes of brain tissues were then observed by HE and Glee silver staining. The miRNA profile analysis of the NAc of the rats was performed using an Illumina HiSeq™ 2500 sequencing system. RESULTS CPP test indicated that METH significantly prolonged the residence time of the rats in the drug box (from 307 ± 97 to 592 ± 96 s). The pathological staining showed the distorted axons, and fewer polarized neurons in the METH-treated rats. We further identified 40 differential miRNAs (17 up- and 23 down-regulated) and three novel miRNAs (novel 237, 296 and 501) that responded to METH. The bioinformatic analysis for the potential targets of the differential miRNA suggests that the downstream were concentrated in the Wnt signalling pathway, tuberculosis, toxoplasmosis, spliceosome, lysosome, and axon guidance. DISCUSSION AND CONCLUSIONS A number of miRNAs responding to METH were identified in the NAc of rats. These METH-regulated miRNAs provide a new perspective for revealing the molecular mechanisms of METH addiction.
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Affiliation(s)
- Jing Yang
- School of Forensic Medicine, Kunming Medical University, Kunming, Yunnan, China
| | - Lihua Li
- School of Forensic Medicine, Kunming Medical University, Kunming, Yunnan, China
| | - Shijun Hong
- School of Forensic Medicine, Kunming Medical University, Kunming, Yunnan, China
| | - Dongxian Zhang
- School of Forensic Medicine, Kunming Medical University, Kunming, Yunnan, China
| | - Yiqing Zhou
- School of Forensic Medicine, Kunming Medical University, Kunming, Yunnan, China
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Fricke S, Metzdorf K, Ohm M, Haak S, Heine M, Korte M, Zagrebelsky M. Fast Regulation of GABA AR Diffusion Dynamics by Nogo-A Signaling. Cell Rep 2020; 29:671-684.e6. [PMID: 31618635 DOI: 10.1016/j.celrep.2019.09.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 07/02/2019] [Accepted: 09/06/2019] [Indexed: 12/29/2022] Open
Abstract
Precisely controlling the excitatory and inhibitory balance is crucial for the stability and information-processing ability of neuronal networks. However, the molecular mechanisms maintaining this balance during ongoing sensory experiences are largely unclear. We show that Nogo-A signaling reciprocally regulates excitatory and inhibitory transmission. Loss of function for Nogo-A signaling through S1PR2 rapidly increases GABAAR diffusion, thereby decreasing their number at synaptic sites and the amplitude of GABAergic mIPSCs at CA3 hippocampal neurons. This increase in GABAAR diffusion rate is correlated with an increase in Ca2+ influx and requires the calcineurin-mediated dephosphorylation of the γ2 subunit at serine 327. These results suggest that Nogo-A signaling rapidly strengthens inhibitory GABAergic transmission by restricting the diffusion dynamics of GABAARs. Together with the observation that Nogo-A signaling regulates excitatory transmission in an opposite manner, these results suggest a crucial role for Nogo-A signaling in modulating the excitation and inhibition balance to restrict synaptic plasticity.
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Affiliation(s)
- Steffen Fricke
- Zoological Institute, Division of Cellular Neurobiology, TU Braunschweig, Braunschweig 38108, Germany
| | - Kristin Metzdorf
- Zoological Institute, Division of Cellular Neurobiology, TU Braunschweig, Braunschweig 38108, Germany
| | - Melanie Ohm
- Zoological Institute, Division of Cellular Neurobiology, TU Braunschweig, Braunschweig 38108, Germany
| | - Stefan Haak
- Zoological Institute, Division of Cellular Neurobiology, TU Braunschweig, Braunschweig 38108, Germany
| | - Martin Heine
- Molecular Physiology Group, Leibniz Institute of Neurobiology, Magdeburg 39118, Germany; Functional Neurobiology, Institute for Developmental Biology and Neurobiology, Johannes Gutenberg University, Mainz 55128, Germany
| | - Martin Korte
- Zoological Institute, Division of Cellular Neurobiology, TU Braunschweig, Braunschweig 38108, Germany; Helmholtz Centre for Infection Research, AG NIND, Inhoffenstr. 7, Braunschweig 38124, Germany
| | - Marta Zagrebelsky
- Zoological Institute, Division of Cellular Neurobiology, TU Braunschweig, Braunschweig 38108, Germany.
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Affiliation(s)
- Bor Luen Tang
- Department of Biochemistry, Yong Loo Lin School of Medicine; National University of Singapore Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore
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Shahidi SH, Kordi MR, Rajabi H, Malm C, Shah F, Quchan ASK. Exercise modulates the levels of growth inhibitor genes before and after multiple sclerosis. J Neuroimmunol 2020; 341:577172. [DOI: 10.1016/j.jneuroim.2020.577172] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 01/22/2020] [Accepted: 01/28/2020] [Indexed: 01/09/2023]
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Jardim de Queiroz L, Cardoso Y, Jacot-des-Combes C, Bahechar IA, Lucena CA, Rapp Py-Daniel L, Sarmento Soares LM, Nylinder S, Oliveira C, Parente TE, Torrente-Vilara G, Covain R, Buckup P, Montoya-Burgos JI. Evolutionary units delimitation and continental multilocus phylogeny of the hyperdiverse catfish genus Hypostomus. Mol Phylogenet Evol 2019; 145:106711. [PMID: 31857199 DOI: 10.1016/j.ympev.2019.106711] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 10/20/2019] [Accepted: 12/14/2019] [Indexed: 10/25/2022]
Abstract
With 149 currently recognized species, Hypostomus is one of the most species-rich catfish genera in the world, widely distributed over most of the Neotropical region. To clarify the evolutionary history of this genus, we reconstructed a comprehensive phylogeny of Hypostomus based on four nuclear and two mitochondrial markers. A total of 206 specimens collected from the main Neotropical rivers were included in the present study. Combining morphology and a Bayesian multispecies coalescent (MSC) approach, we recovered 85 previously recognized species plus 23 putative new species, organized into 118 'clusters'. We presented the Cluster Credibility (CC) index that provides numerical support for every hypothesis of cluster delimitation, facilitating delimitation decisions. We then examined the correspondence between the morphologically identified species and their inter-specific COI barcode pairwise divergence. The mean COI barcode divergence between morphological sisters species was 1.3 ± 1.2%, and only in 11% of the comparisons the divergence was ≥2%. This indicates that the COI barcode threshold of 2% classically used to delimit fish species would seriously underestimate the number of species in Hypostomus, advocating for a taxon-specific COI-based inter-specific divergence threshold to be used only when approximations of species richness are needed. The phylogeny of the 108 Hypostomus species, together with 35 additional outgroup species, confirms the monophyly of the genus. Four well-supported main lineages were retrieved, hereinafter called super-groups: Hypostomus cochliodon, H. hemiurus, H. auroguttatus, and H. plecostomus super-groups. We present a compilation of diagnostic characters for each super-group. Our phylogeny lays the foundation for future studies on biogeography and on macroevolution to better understand the successful radiation of this Neotropical fish genus.
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Affiliation(s)
- Luiz Jardim de Queiroz
- Department of Genetics and Evolution, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva, Switzerland
| | - Yamila Cardoso
- Laboratorio de Sistemática y Biología Evolutiva, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Paseo del Bosque S/N, B1900FWA, La Plata, Consejo Nacional de Investigaciones Científicas y Técnicas, Argentina
| | - Cécile Jacot-des-Combes
- Department of Genetics and Evolution, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva, Switzerland
| | - Ilham Anne Bahechar
- Department of Genetics and Evolution, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva, Switzerland
| | - Carlos Alberto Lucena
- Museu de Ciências e Tecnologia, Pontifícia Universidade Católica do Rio Grande do Sul, Av. Ipiranga 6681, 90619-900 Porto Alegre, RS, Brazil
| | - Lucia Rapp Py-Daniel
- Coordenação de Biodiversidade, Programa de Coleções Científicas e Biológicas, Instituto Nacional de Pesquisas da Amazônia, Av. André Araújo 2936, 69060-001 Manaus, AM, Brazil
| | - Luisa Maria Sarmento Soares
- Museu de Biologia Professor Mello Leitão, Instituto Nacional da Mata Atlântica, Av. José Ruschi 4, 29650-000 Santa Teresa, ES, Brazil
| | - Stephan Nylinder
- Department of Psychology, University of Gothenburg. Haraldsgatan 1, 413 14 Gothenburg, Sweden
| | - Claudio Oliveira
- Departamento de Morfologia, Instituto de Biociências, Universidade Estadual de São Paulo, Rua Professor Doutor Antonio Celso Wagner Zanin 250, 18618-689 Botucatu, SP, Brazil
| | - Thiago Estevam Parente
- Laboratório de Toxicologia Ambiental, Laboratório de Genética Molecular de Microrganismos, Fundação Oswaldo Cruz, Av. Brasil 4365, 21040-900 Rio de Janeiro, RJ, Brazil
| | - Gislene Torrente-Vilara
- Departamento de Ciências do Mar, Universidade Federal de São Paulo, Av. Doutor Carvalho de Mendonça 144, 11070-100 Santos, SP, Brazil
| | - Raphaël Covain
- Department of Herpertology and Ichthyology, Museum of Natural History of Geneva, Route de Malagnou 1, 1211 Geneva, Switzerland
| | - Paulo Buckup
- Departamento de Vertebrados, Vista Museu Nacional do Rio de Janeiro/Universidade Federal do Rio de Janeiro, Quinta da Boa, 20940-040 Rio de Janeiro, RJ, Brazil
| | - Juan I Montoya-Burgos
- Department of Genetics and Evolution, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva, Switzerland.
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