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García-Magro N, Mesa-Lombardo A, Barros-Zulaica N, Nuñez Á. Impairment of synaptic plasticity in the primary somatosensory cortex in a model of diabetic mice. Front Cell Neurosci 2024; 18:1444395. [PMID: 39139399 PMCID: PMC11319126 DOI: 10.3389/fncel.2024.1444395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Accepted: 07/17/2024] [Indexed: 08/15/2024] Open
Abstract
Type 1 and type 2 diabetic patients experience alterations in the Central Nervous System, leading to cognitive deficits. Cognitive deficits have been also observed in animal models of diabetes such as impaired sensory perception, as well as deficits in working and spatial memory functions. It has been suggested that a reduction of insulin-like growth factor-I (IGF-I) and/or insulin levels may induce these neurological disorders. We have studied synaptic plasticity in the primary somatosensory cortex of young streptozotocin (STZ)-diabetic mice. We focused on the influence of reduced IGF-I brain levels on cortical synaptic plasticity. Unit recordings were conducted in layer 2/3 neurons of the primary somatosensory (S1) cortex in both control and STZ-diabetic mice under isoflurane anesthesia. Synaptic plasticity was induced by repetitive whisker stimulation. Results showed that repetitive stimulation of whiskers (8 Hz induction train) elicited a long-term potentiation (LTP) in layer 2/3 neurons of the S1 cortex of control mice. In contrast, the same induction train elicited a long-term depression (LTD) in STZ-diabetic mice that was dependent on NMDA and metabotropic glutamatergic receptors. The reduction of IGF-I brain levels in diabetes could be responsible of synaptic plasticity impairment, as evidenced by improved response facilitation in STZ-diabetic mice following the application of IGF-I. This hypothesis was further supported by immunochemical techniques, which revealed a reduction in IGF-I receptors in the layer 2/3 of the S1 cortex in STZ-diabetic animals. The observed synaptic plasticity impairments in STZ-diabetic animals were accompanied by decreased performance in a whisker discrimination task, along with reductions in IGF-I, GluR1, and NMDA receptors observed in immunochemical studies. In conclusion, impaired synaptic plasticity in the S1 cortex may stem from reduced IGF-I signaling, leading to decreased intracellular signal pathways and thus, glutamatergic receptor numbers in the cellular membrane.
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Affiliation(s)
- Nuria García-Magro
- Department of Anatomy, Faculty of Health Science, Universidad Francisco de Vitoria, Pozuelo de Alarcón, Madrid, Spain
| | - Alberto Mesa-Lombardo
- Department of Anatomy, Histology and Neuroscience, Medical School, Autónoma University of Madrid, Madrid, Spain
| | - Natali Barros-Zulaica
- Blue Brain Project, Ecole Polytechnique Fédérale de Lausanne, Campus Biotech, Geneva, Switzerland
| | - Ángel Nuñez
- Department of Anatomy, Histology and Neuroscience, Medical School, Autónoma University of Madrid, Madrid, Spain
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2
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Nowacka A, Getz AM, Bessa-Neto D, Choquet D. Activity-dependent diffusion trapping of AMPA receptors as a key step for expression of early LTP. Philos Trans R Soc Lond B Biol Sci 2024; 379:20230220. [PMID: 38853553 PMCID: PMC11343219 DOI: 10.1098/rstb.2023.0220] [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: 02/24/2024] [Revised: 04/10/2024] [Accepted: 04/11/2024] [Indexed: 06/11/2024] Open
Abstract
This review focuses on the activity-dependent diffusion trapping of α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors (AMPARs) as a crucial mechanism for the expression of early long-term potentiation (LTP), a process central to learning and memory. Despite decades of research, the precise mechanisms by which LTP induction leads to an increase in AMPAR responses at synapses have been elusive. We review the different hypotheses that have been put forward to explain the increased AMPAR responsiveness during LTP. We discuss the dynamic nature of AMPAR complexes, including their constant turnover and activity-dependent modifications that affect their synaptic accumulation. We highlight a hypothesis suggesting that AMPARs are diffusively trapped at synapses through activity-dependent interactions with protein-based binding slots in the post-synaptic density (PSD), offering a potential explanation for the increased synaptic strength during LTP. Furthermore, we outline the challenges still to be addressed before we fully understand the functional roles and molecular mechanisms of AMPAR dynamic nanoscale organization in LTP. This article is part of a discussion meeting issue 'Long-term potentiation: 50 years on'.
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Affiliation(s)
- Agata Nowacka
- University of Bordeaux, CNRS, Interdisciplinary Institute for Neuroscience, IINS, UMR 5297, BordeauxF-33000, France
| | - Angela M. Getz
- University of Bordeaux, CNRS, Interdisciplinary Institute for Neuroscience, IINS, UMR 5297, BordeauxF-33000, France
- University of Bordeaux, CNRS, INSERM, Bordeaux Imaging Center, BIC, UMS 3420, US 4, BordeauxF-33000, France
| | - Diogo Bessa-Neto
- University of Bordeaux, CNRS, Interdisciplinary Institute for Neuroscience, IINS, UMR 5297, BordeauxF-33000, France
| | - Daniel Choquet
- University of Bordeaux, CNRS, Interdisciplinary Institute for Neuroscience, IINS, UMR 5297, BordeauxF-33000, France
- University of Bordeaux, CNRS, INSERM, Bordeaux Imaging Center, BIC, UMS 3420, US 4, BordeauxF-33000, France
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3
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Brownstien M, Lazar M, Botvinnik A, Shevakh C, Blakolmer K, Lerer L, Lifschytz T, Lerer B. Striking Long Term Beneficial Effects of Single Dose Psilocybin and Psychedelic Mushroom Extract in the SAPAP3 Rodent Model of OCD-Like Excessive Self-Grooming. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.25.600634. [PMID: 38979304 PMCID: PMC11230258 DOI: 10.1101/2024.06.25.600634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
Obsessive compulsive disorder (OCD) is a highly prevalent disorder that causes serious disability. Available treatments leave 40% or more of people with OCD significantly symptomatic. There is an urgent need for novel therapeutic approaches. Mice that carry a homozygous deletion of the SAPAP3 gene (SAPAP3 KO) manifest a phenotype of excessive self-grooming, tic-like head-body twitches and anxiety. These behaviors closely resemble pathological self-grooming behaviors observed in humans in conditions that overlap with OCD. Following a preliminary report that the tryptaminergic psychedelic, psilocybin, may reduce symptoms in patients with OCD, we undertook a randomized controlled trial of psilocybin in 50 SAPAP3 KO mice (28 male, 22 female). Mice that fulfilled inclusion criteria were randomly assigned to a single intraperitoneal injection of psilocybin (4.4 mg/kg), psychedelic mushroom extract (encompassing the same psilocybin dose) or vehicle control and were evaluated after 2, 4 and 21 days by a rater blind to treatment allocation for grooming characteristics, head-body twitches, anxiety and other behavioral features. Mice treated with vehicle (n=18) manifested a 118.71±95.96 % increase in total self-grooming (the primary outcome measure) over the 21-day observation period. In contrast, total self-grooming decreased by 14.60%±17.90% in mice treated with psilocybin (n=16) and by 19.20±20.05% in mice treated with psychedelic mushroom extract (n=16) (p=.001 for effect of time; p=.0001 for time × treatment interaction). 5 mice were dropped from the vehicle group because they developed skin lesions; 4 from the psilocybin group and none from the psychedelic mushroom extract group. Secondary outcome measures such as head-body twitches and anxiety all showed a significant improvement over 21 days. Notably, in mice that responded to psilocybin (n=12) and psychedelic mushroom extract (n=13), the beneficial effect of a single treatment persisted up to 7 weeks. Mice initially treated with vehicle and non-responsive, showed a clear and lasting therapeutic response when treated with a single dose of psilocybin or psychedelic mushroom extract and followed for a further 3 weeks. While equivalent to psilocybin in overall effect on self-grooming, psychedelic mushroom extract showed superior effects in alleviating head-body twitches and anxiety. These findings strongly justify clinical trials of psilocybin in the treatment of OCD and further studies aimed at elucidating mechanisms that underlie the long-term effects to alleviate excessive self-grooming observed in this study.
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Affiliation(s)
- Michal Brownstien
- Biological Psychiatry Laboratory and Hadassah BrainLabs Center for Psychedelic Research, Hebrew University, Ein Karem, Jerusalem, Israel
| | - Michal Lazar
- Biological Psychiatry Laboratory and Hadassah BrainLabs Center for Psychedelic Research, Hebrew University, Ein Karem, Jerusalem, Israel
| | - Alexander Botvinnik
- Biological Psychiatry Laboratory and Hadassah BrainLabs Center for Psychedelic Research, Hebrew University, Ein Karem, Jerusalem, Israel
| | - Chloe Shevakh
- Biological Psychiatry Laboratory and Hadassah BrainLabs Center for Psychedelic Research, Hebrew University, Ein Karem, Jerusalem, Israel
| | | | - Leonard Lerer
- Parow Entheobiosciences (ParowBio), Chicago, IL, USA
- Back of the Yards Algae Sciences (BYAS), Chicago, IL, USA
| | - Tzuri Lifschytz
- Biological Psychiatry Laboratory and Hadassah BrainLabs Center for Psychedelic Research, Hebrew University, Ein Karem, Jerusalem, Israel
| | - Bernard Lerer
- Biological Psychiatry Laboratory and Hadassah BrainLabs Center for Psychedelic Research, Hebrew University, Ein Karem, Jerusalem, Israel
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4
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Shah FA, Albaqami F, Alattar A, Alshaman R, Zaitone SA, Gabr AM, Abdel-Moneim AMH, dosoky ME, Koh PO. Quercetin attenuated ischemic stroke induced neurodegeneration by modulating glutamatergic and synaptic signaling pathways. Heliyon 2024; 10:e28016. [PMID: 38571617 PMCID: PMC10987936 DOI: 10.1016/j.heliyon.2024.e28016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 03/07/2024] [Accepted: 03/11/2024] [Indexed: 04/05/2024] Open
Abstract
Ischemic strokes originate whenever the circulation to the brain is interrupted, either temporarily or permanently, resulting in a lack of oxygen and other nutrients. This deprivation primarily impacts the cerebral cortex and striatum, resulting in neurodegeneration. Several experimental stroke models have demonstrated that the potent antioxidant quercetin offers protection against stroke-related damage. Multiple pathways have been associated with quercetin's ability to safeguard the brain from ischemic injury. This study examines whether the administration of quercetin alters glutamate NMDA and GluR1 receptor signaling in the cortex and striatum 72 h after transient middle cerebral artery occlusion. The administration of 10 mg/kg of quercetin shielded cortical and striatal neurons from cell death induced by ischemia in adult SD rats. Quercetin reversed the ischemia-induced reduction of NR2a/PSD95, consequently promoting the pro-survival AKT pathway and reducing CRMP2 phosphorylation. Additionally, quercetin decreased the levels of reactive oxygen species and inflammatory pathways while increasing the expression of the postsynaptic protein PSD95. Our results suggest that quercetin may be a promising neuroprotective drug for ischemic stroke therapy as it recovers neuronal damage via multiple pathways.
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Affiliation(s)
- Fawad Ali Shah
- Department of Pharmacology and Toxicology, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, 11942, Saudi Arabia
| | - Faisal Albaqami
- Department of Pharmacology and Toxicology, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, 11942, Saudi Arabia
| | - Abdullah Alattar
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, University of Tabuk, Tabuk, Saudi Arabia
| | - Reem Alshaman
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, University of Tabuk, Tabuk, Saudi Arabia
| | - Sawsan A. Zaitone
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Attia M. Gabr
- Pharmacology and Therapeutics Department, College of Medicine, Qassim University, Qassim, Saudi Arabia
- Department of Clinical Pharmacology, Faculty of Medicine, Suez Canal University, Ismailia, 41522, Egypt
| | - Abdel-Moneim Hafez Abdel-Moneim
- Department of Physiology, College of Medicine, Qassim University, Qassim, Saudi Arabia
- Department of Physiology, Faculty of Medicine, Mansoura University, Egypt
| | - Mohamed El dosoky
- Department of Neuroscience Technology, College of Applied Medical Sciences in Jubail, Imam Abdulrahman Bin Faisal University, Jubail, Saudi Arabia
| | - Phil Ok Koh
- Department of Anatomy and Histology, College of Veterinary Medicine, Research Institute of Life Science, Gyeongsang National University, 501 Jinjudaero, Jinju, 52828, South Korea
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5
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Wang YZ, Castillon CCM, Gebis KK, Bartom ET, d'Azzo A, Contractor A, Savas JN. Notch receptor-ligand binding facilitates extracellular vesicle-mediated neuron-to-neuron communication. Cell Rep 2024; 43:113680. [PMID: 38241148 PMCID: PMC10976296 DOI: 10.1016/j.celrep.2024.113680] [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: 06/15/2023] [Revised: 11/15/2023] [Accepted: 01/01/2024] [Indexed: 01/21/2024] Open
Abstract
Extracellular vesicles (EVs) facilitate intercellular communication by transferring cargo between cells in a variety of tissues. However, how EVs achieve cell-type-specific intercellular communication is still largely unknown. We found that Notch1 and Notch2 proteins are expressed on the surface of neuronal EVs that have been generated in response to neuronal excitatory synaptic activity. Notch ligands bind these EVs on the neuronal plasma membrane, trigger their internalization, activate the Notch signaling pathway, and drive the expression of Notch target genes. The generation of these neuronal EVs requires the endosomal sorting complex required for transport-associated protein Alix. Adult Alix conditional knockout mice have reduced hippocampal Notch signaling activation and glutamatergic synaptic protein expression. Thus, EVs facilitate neuron-to-neuron communication via the Notch receptor-ligand system in the brain.
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Affiliation(s)
- Yi-Zhi Wang
- Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Charlotte C M Castillon
- Department of Neuroscience, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Kamil K Gebis
- Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Elizabeth T Bartom
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Alessandra d'Azzo
- Department of Genetics, St Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Anis Contractor
- Department of Neuroscience, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Jeffrey N Savas
- Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
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6
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Veneruso I, Ranieri A, Falcone N, Tripodi L, Scarano C, La Monica I, Pastore L, Lombardo B, D’Argenio V. The Potential Usefulness of the Expanded Carrier Screening to Identify Hereditary Genetic Diseases: A Case Report from Real-World Data. Genes (Basel) 2023; 14:1651. [PMID: 37628702 PMCID: PMC10454493 DOI: 10.3390/genes14081651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 08/16/2023] [Accepted: 08/17/2023] [Indexed: 08/27/2023] Open
Abstract
Expanded carrier screening (ECS) means a comprehensive genetic analysis to evaluate an individual's carrier status. ECS is becoming more frequently used, thanks to the availability of techniques such as next generation sequencing (NGS) and array comparative genomic hybridization (aCGH), allowing for extensive genome-scale analyses. Here, we report the case of a couple who underwent ECS for a case of autism spectrum disorder in the male partner family. aCGH and whole-exome sequencing (WES) were performed in the couple. aCGH analysis identified in the female partner two deletions involving genes associated to behavioral and neurodevelopment disorders. No clinically relevant alterations were identified in the husband. Interestingly, WES analysis identified in the male partner a pathogenic variant in the LPL gene that is emerging as a novel candidate gene for autism. This case shows that ECS may be useful in clinical contexts, especially when both the partners are analyzed before conception, thus allowing the estimation of their risk to transmit an inherited condition. On the other side, there are several concerns related to possible incidental findings and difficult-to-interpret results. Once these limits are defined by the establishment of specific guidelines, ECS may have a greater diffusion.
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Affiliation(s)
- Iolanda Veneruso
- CEINGE-Biotecnologie Avanzate Franco Salvatore, via G. Salvatore 486, 80145 Naples, Italy
- Department of Molecular Medicine and Medical Biotechnologies, Federico II University, via Sergio Pansini 5, 80131 Naples, Italy
| | - Annaluisa Ranieri
- CEINGE-Biotecnologie Avanzate Franco Salvatore, via G. Salvatore 486, 80145 Naples, Italy
| | - Noemi Falcone
- CEINGE-Biotecnologie Avanzate Franco Salvatore, via G. Salvatore 486, 80145 Naples, Italy
- Department of Molecular Medicine and Medical Biotechnologies, Federico II University, via Sergio Pansini 5, 80131 Naples, Italy
| | - Lorella Tripodi
- CEINGE-Biotecnologie Avanzate Franco Salvatore, via G. Salvatore 486, 80145 Naples, Italy
- Department of Molecular Medicine and Medical Biotechnologies, Federico II University, via Sergio Pansini 5, 80131 Naples, Italy
| | - Carmela Scarano
- CEINGE-Biotecnologie Avanzate Franco Salvatore, via G. Salvatore 486, 80145 Naples, Italy
- Department of Molecular Medicine and Medical Biotechnologies, Federico II University, via Sergio Pansini 5, 80131 Naples, Italy
| | - Ilaria La Monica
- CEINGE-Biotecnologie Avanzate Franco Salvatore, via G. Salvatore 486, 80145 Naples, Italy
| | - Lucio Pastore
- CEINGE-Biotecnologie Avanzate Franco Salvatore, via G. Salvatore 486, 80145 Naples, Italy
- Department of Molecular Medicine and Medical Biotechnologies, Federico II University, via Sergio Pansini 5, 80131 Naples, Italy
| | - Barbara Lombardo
- CEINGE-Biotecnologie Avanzate Franco Salvatore, via G. Salvatore 486, 80145 Naples, Italy
- Department of Molecular Medicine and Medical Biotechnologies, Federico II University, via Sergio Pansini 5, 80131 Naples, Italy
| | - Valeria D’Argenio
- CEINGE-Biotecnologie Avanzate Franco Salvatore, via G. Salvatore 486, 80145 Naples, Italy
- Department of Human Sciences and Quality of Life Promotion, San Raffaele Open University, via di Val Cannuta 247, 00166 Rome, Italy
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7
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Vellucci L, Ciccarelli M, Buonaguro EF, Fornaro M, D’Urso G, De Simone G, Iasevoli F, Barone A, de Bartolomeis A. The Neurobiological Underpinnings of Obsessive-Compulsive Symptoms in Psychosis, Translational Issues for Treatment-Resistant Schizophrenia. Biomolecules 2023; 13:1220. [PMID: 37627285 PMCID: PMC10452784 DOI: 10.3390/biom13081220] [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: 02/28/2023] [Revised: 07/24/2023] [Accepted: 07/31/2023] [Indexed: 08/27/2023] Open
Abstract
Almost 25% of schizophrenia patients suffer from obsessive-compulsive symptoms (OCS) considered a transdiagnostic clinical continuum. The presence of symptoms pertaining to both schizophrenia and obsessive-compulsive disorder (OCD) may complicate pharmacological treatment and could contribute to lack or poor response to the therapy. Despite the clinical relevance, no reviews have been recently published on the possible neurobiological underpinnings of this comorbidity, which is still unclear. An integrative view exploring this topic should take into account the following aspects: (i) the implication for glutamate, dopamine, and serotonin neurotransmission as demonstrated by genetic findings; (ii) the growing neuroimaging evidence of the common brain regions and dysfunctional circuits involved in both diseases; (iii) the pharmacological modulation of dopaminergic, serotoninergic, and glutamatergic systems as current therapeutic strategies in schizophrenia OCS; (iv) the recent discovery of midbrain dopamine neurons and dopamine D1- and D2-like receptors as orchestrating hubs in repetitive and psychotic behaviors; (v) the contribution of N-methyl-D-aspartate receptor subunits to both psychosis and OCD neurobiology. Finally, we discuss the potential role of the postsynaptic density as a structural and functional hub for multiple molecular signaling both in schizophrenia and OCD pathophysiology.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Andrea de Bartolomeis
- Section of Psychiatry, Laboratory of Translational and Molecular Psychiatry and Unit of Treatment-Resistant Psychosis, Department of Neuroscience, Reproductive Sciences and Dentistry University Medical School of Naples “Federico II”, Via Pansini 5, 80131 Naples, Italy
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8
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Opland CK, Bryan MR, Harris B, McGillion-Moore J, Tian X, Chen Y, Itano MS, Diering GH, Meeker RB, Cohen TJ. Activity-dependent tau cleavage by caspase-3 promotes neuronal dysfunction and synaptotoxicity. iScience 2023; 26:106905. [PMID: 37305696 PMCID: PMC10251131 DOI: 10.1016/j.isci.2023.106905] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 03/08/2023] [Accepted: 05/12/2023] [Indexed: 06/13/2023] Open
Abstract
Tau-mediated toxicity is associated with cognitive decline and Alzheimer's disease (AD) progression. In particular, tau post-translational modifications (PTMs) are thought to generate aberrant tau species resulting in neuronal dysfunction. Despite being well characterized in postmortem AD brain, it is unclear how caspase-mediated C-terminal tau cleavage promotes neurodegeneration, as few studies have developed the models to dissect this pathogenic mechanism. Here, we show that proteasome impairment results in cleaved tau accumulation at the post-synaptic density (PSD), a process that is modulated by neuronal activity. Cleaved tau (at residue D421) impairs neuronal firing and causes inefficient initiation of network bursts, consistent with reduced excitatory drive. We propose that reduced neuronal activity, or silencing, is coupled to proteasome dysfunction, which drives cleaved tau accumulation at the PSD and subsequent synaptotoxicity. Our study connects three common themes in the progression of AD: impaired proteostasis, caspase-mediated tau cleavage, and synapse degeneration.
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Affiliation(s)
- Carli K. Opland
- UNC Neuroscience Center, University of North Carolina, Chapel Hill, NC 27599, USA
- Department of Neurology, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Miles R. Bryan
- UNC Neuroscience Center, University of North Carolina, Chapel Hill, NC 27599, USA
- Department of Neurology, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Braxton Harris
- Department of Neurology, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Jake McGillion-Moore
- UNC Neuroscience Center, University of North Carolina, Chapel Hill, NC 27599, USA
- Department of Neurology, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Xu Tian
- UNC Neuroscience Center, University of North Carolina, Chapel Hill, NC 27599, USA
- Department of Neurology, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Youjun Chen
- UNC Neuroscience Center, University of North Carolina, Chapel Hill, NC 27599, USA
- Department of Neurology, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Michelle S. Itano
- UNC Neuroscience Center, University of North Carolina, Chapel Hill, NC 27599, USA
- Department of Cell Biology and Physiology, Carolina Institute for Developmental Disabilities, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Graham H. Diering
- UNC Neuroscience Center, University of North Carolina, Chapel Hill, NC 27599, USA
- Department of Cell Biology and Physiology, Carolina Institute for Developmental Disabilities, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Rick B. Meeker
- Department of Neurology, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Todd J. Cohen
- UNC Neuroscience Center, University of North Carolina, Chapel Hill, NC 27599, USA
- Department of Neurology, University of North Carolina, Chapel Hill, NC 27599, USA
- Department of Cell Biology and Physiology, Carolina Institute for Developmental Disabilities, University of North Carolina, Chapel Hill, NC 27599, USA
- Department of Biochemistry and Biophysics, University of North Carolina, Chapel Hill, NC 27599-7260, USA
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9
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Huang M, Bin NR, Rai J, Ma K, Chow CH, Eide S, Harada H, Xiao J, Feng D, Sun HS, Feng ZP, Gaisano HY, Pessin JE, Monnier PP, Okamoto K, Zhang L, Sugita S. Neuronal SNAP-23 is critical for synaptic plasticity and spatial memory independently of NMDA receptor regulation. iScience 2023; 26:106664. [PMID: 37168570 PMCID: PMC10165271 DOI: 10.1016/j.isci.2023.106664] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 01/30/2023] [Accepted: 04/06/2023] [Indexed: 05/13/2023] Open
Abstract
SNARE-mediated membrane fusion plays a crucial role in presynaptic vesicle exocytosis and also in postsynaptic receptor delivery. The latter is considered particularly important for synaptic plasticity and learning and memory, yet the identity of the key SNARE proteins remains elusive. Here, we investigate the role of neuronal synaptosomal-associated protein-23 (SNAP-23) by analyzing pyramidal-neuron specific SNAP-23 conditional knockout (cKO) mice. Electrophysiological analysis of SNAP-23 deficient neurons using acute hippocampal slices showed normal basal neurotransmission in CA3-CA1 synapses with unchanged AMPA and NMDA currents. Nevertheless, we found theta-burst stimulation-induced long-term potentiation (LTP) was vastly diminished in SNAP-23 cKO slices. Moreover, unlike syntaxin-4 cKO mice where both basal neurotransmission and LTP decrease manifested changes in a broad set of behavioral tasks, deficits of SNAP-23 cKO are more limited to spatial memory. Our data reveal that neuronal SNAP-23 is selectively crucial for synaptic plasticity and spatial memory without affecting basal glutamate receptor function.
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Affiliation(s)
- Mengjia Huang
- Division of Experimental & Translational Neuroscience, Krembil Brain Institute, University Health Network, Toronto, ON M5T 0S8, Canada
- Department of Physiology, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Na-Ryum Bin
- Division of Experimental & Translational Neuroscience, Krembil Brain Institute, University Health Network, Toronto, ON M5T 0S8, Canada
- Department of Physiology, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Jayant Rai
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, ON M5G1X5, Canada
- Department of Molecular Genetics, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Ke Ma
- Division of Experimental & Translational Neuroscience, Krembil Brain Institute, University Health Network, Toronto, ON M5T 0S8, Canada
- Department of Pediatrics, The First Hospital of Jilin University, Changchun 130021, China
| | - Chun Hin Chow
- Division of Experimental & Translational Neuroscience, Krembil Brain Institute, University Health Network, Toronto, ON M5T 0S8, Canada
- Department of Physiology, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Sarah Eide
- Department of Physiology, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Hidekiyo Harada
- Donald K. Johnson Eye Institute, University Health Network, Toronto, ON M5T 0S8, Canada
| | - Jianbing Xiao
- Division of Experimental & Translational Neuroscience, Krembil Brain Institute, University Health Network, Toronto, ON M5T 0S8, Canada
- Department of Physiology, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Department of Anatomy, Harbin Medical University, Harbin 150081, China
| | - Daorong Feng
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Hong-Shuo Sun
- Department of Physiology, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Department of Anatomy, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Zhong-Ping Feng
- Department of Physiology, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Herbert Y. Gaisano
- Department of Physiology, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 2C4, Canada
- Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Jeffrey E. Pessin
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY 10461, USA
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Philippe P. Monnier
- Department of Physiology, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Donald K. Johnson Eye Institute, University Health Network, Toronto, ON M5T 0S8, Canada
- Department of Ophthalmology & Vision Sciences, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Kenichi Okamoto
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, ON M5G1X5, Canada
- Department of Molecular Genetics, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Liang Zhang
- Division of Experimental & Translational Neuroscience, Krembil Brain Institute, University Health Network, Toronto, ON M5T 0S8, Canada
- Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Shuzo Sugita
- Division of Experimental & Translational Neuroscience, Krembil Brain Institute, University Health Network, Toronto, ON M5T 0S8, Canada
- Department of Physiology, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
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10
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Yin C, Harms AC, Hankemeier T, Kindt A, de Lange ECM. Status of Metabolomic Measurement for Insights in Alzheimer's Disease Progression-What Is Missing? Int J Mol Sci 2023; 24:ijms24054960. [PMID: 36902391 PMCID: PMC10003384 DOI: 10.3390/ijms24054960] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/24/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023] Open
Abstract
Alzheimer's disease (AD) is an aging-related neurodegenerative disease, leading to the progressive loss of memory and other cognitive functions. As there is still no cure for AD, the growth in the number of susceptible individuals represents a major emerging threat to public health. Currently, the pathogenesis and etiology of AD remain poorly understood, while no efficient treatments are available to slow down the degenerative effects of AD. Metabolomics allows the study of biochemical alterations in pathological processes which may be involved in AD progression and to discover new therapeutic targets. In this review, we summarized and analyzed the results from studies on metabolomics analysis performed in biological samples of AD subjects and AD animal models. Then this information was analyzed by using MetaboAnalyst to find the disturbed pathways among different sample types in human and animal models at different disease stages. We discuss the underlying biochemical mechanisms involved, and the extent to which they could impact the specific hallmarks of AD. Then we identify gaps and challenges and provide recommendations for future metabolomics approaches to better understand AD pathogenesis.
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Affiliation(s)
- Chunyuan Yin
- Metabolomics and Analytics Centre, Leiden Academic Centre for Drug Research, Leiden University, 2333 CC Leiden, The Netherlands
- Division of Systems Pharmacology and Pharmacy, Leiden Academic Centre for Drug Research, Leiden University, 2333 CC Leiden, The Netherlands
| | - Amy C. Harms
- Metabolomics and Analytics Centre, Leiden Academic Centre for Drug Research, Leiden University, 2333 CC Leiden, The Netherlands
| | - Thomas Hankemeier
- Metabolomics and Analytics Centre, Leiden Academic Centre for Drug Research, Leiden University, 2333 CC Leiden, The Netherlands
| | - Alida Kindt
- Metabolomics and Analytics Centre, Leiden Academic Centre for Drug Research, Leiden University, 2333 CC Leiden, The Netherlands
| | - Elizabeth C. M. de Lange
- Division of Systems Pharmacology and Pharmacy, Leiden Academic Centre for Drug Research, Leiden University, 2333 CC Leiden, The Netherlands
- Correspondence:
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11
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Wang T, Bai Y, Zheng X, Liu X, Xing S, Wang L, Wang H, Feng G, Li C. Sapap4 deficiency leads to postsynaptic defects and abnormal behaviors relevant to hyperkinetic neuropsychiatric disorder in mice. Cereb Cortex 2023; 33:1104-1118. [PMID: 35368073 DOI: 10.1093/cercor/bhac123] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 03/02/2022] [Accepted: 03/03/2022] [Indexed: 11/13/2022] Open
Abstract
Postsynaptic proteins play critical roles in synaptic development, function, and plasticity. Dysfunction of postsynaptic proteins is strongly linked to neurodevelopmental and psychiatric disorders. SAP90/PSD95-associated protein 4 (SAPAP4; also known as DLGAP4) is a key component of the PSD95-SAPAP-SHANK excitatory postsynaptic scaffolding complex, which plays important roles at synapses. However, the exact function of the SAPAP4 protein in the brain is poorly understood. Here, we report that Sapap4 knockout (KO) mice have reduced spine density in the prefrontal cortex and abnormal compositions of key postsynaptic proteins in the postsynaptic density (PSD) including reduced PSD95, GluR1, and GluR2 as well as increased SHANK3. These synaptic defects are accompanied by a cluster of abnormal behaviors including hyperactivity, impulsivity, reduced despair/depression-like behavior, hypersensitivity to low dose of amphetamine, memory deficits, and decreased prepulse inhibition, which are reminiscent of mania. Furthermore, the hyperactivity of Sapap4 KO mice could be partially rescued by valproate, a mood stabilizer used for mania treatment in humans. Together, our findings provide evidence that SAPAP4 plays an important role at synapses and reinforce the view that dysfunction of the postsynaptic scaffolding protein SAPAP4 may contribute to the pathogenesis of hyperkinetic neuropsychiatric disorder.
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Affiliation(s)
- Tianhua Wang
- Key Laboratory of Brain Functional Genomics (STCSM & MOE), School of Psychology and Cognitive Science, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, China
| | - Yunxia Bai
- Key Laboratory of Brain Functional Genomics (STCSM & MOE), School of Psychology and Cognitive Science, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, China
| | - Xianjie Zheng
- Key Laboratory of Brain Functional Genomics (STCSM & MOE), School of Psychology and Cognitive Science, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, China
| | - Xinxia Liu
- Key Laboratory of Brain Functional Genomics (STCSM & MOE), School of Psychology and Cognitive Science, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, China
| | - Shuang Xing
- Key Laboratory of Brain Functional Genomics (STCSM & MOE), School of Psychology and Cognitive Science, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, China
| | - Linbin Wang
- Key Laboratory of Brain Functional Genomics (STCSM & MOE), School of Psychology and Cognitive Science, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, China
| | - Huimin Wang
- Key Laboratory of Brain Functional Genomics (STCSM & MOE), School of Psychology and Cognitive Science, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, China.,NYU-ECNU Institute of Brain and Cognitive Science at NYU Shanghai, 3663 North Zhongshan Road, Shanghai, 200062, China
| | - Guoping Feng
- McGovern Institute for Brain Research, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, 43 Vassar Street, Cambridge, Massachusetts, 02139, USA.,Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, 75 Ames Street, Cambridge, Massachusetts, 02142, USA
| | - Chunxia Li
- Key Laboratory of Brain Functional Genomics (STCSM & MOE), School of Psychology and Cognitive Science, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, China
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12
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Bai Y, Wang H, Li C. SAPAP Scaffold Proteins: From Synaptic Function to Neuropsychiatric Disorders. Cells 2022; 11:cells11233815. [PMID: 36497075 PMCID: PMC9740047 DOI: 10.3390/cells11233815] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 11/24/2022] [Accepted: 11/25/2022] [Indexed: 11/30/2022] Open
Abstract
Excitatory (glutamatergic) synaptic transmission underlies many aspects of brain activity and the genesis of normal human behavior. The postsynaptic scaffolding proteins SAP90/PSD-95-associated proteins (SAPAPs), which are abundant components of the postsynaptic density (PSD) at excitatory synapses, play critical roles in synaptic structure, formation, development, plasticity, and signaling. The convergence of human genetic data with recent in vitro and in vivo animal model data indicates that mutations in the genes encoding SAPAP1-4 are associated with neurological and psychiatric disorders, and that dysfunction of SAPAP scaffolding proteins may contribute to the pathogenesis of various neuropsychiatric disorders, such as schizophrenia, autism spectrum disorders, obsessive compulsive disorders, Alzheimer's disease, and bipolar disorder. Here, we review recent major genetic, epigenetic, molecular, behavioral, electrophysiological, and circuitry studies that have advanced our knowledge by clarifying the roles of SAPAP proteins at the synapses, providing new insights into the mechanistic links to neurodevelopmental and neuropsychiatric disorders.
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Affiliation(s)
- Yunxia Bai
- Key Laboratory of Brain Functional Genomics (STCSM & MOE), Affiliated Mental Health Center (ECNU), School of Psychology and Cognitive Science, East China Normal University, Shanghai 200062, China
- Shanghai Changning Mental Health Center, Shanghai 200335, China
| | - Huimin Wang
- Key Laboratory of Brain Functional Genomics (STCSM & MOE), Affiliated Mental Health Center (ECNU), School of Psychology and Cognitive Science, East China Normal University, Shanghai 200062, China
- Shanghai Changning Mental Health Center, Shanghai 200335, China
- NYU-ECNU Institute of Brain and Cognitive Science at NYU Shanghai, Shanghai 200062, China
| | - Chunxia Li
- Key Laboratory of Brain Functional Genomics (STCSM & MOE), Affiliated Mental Health Center (ECNU), School of Psychology and Cognitive Science, East China Normal University, Shanghai 200062, China
- Shanghai Changning Mental Health Center, Shanghai 200335, China
- Correspondence:
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13
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Yoshida M, Hasegawa S, Taniguchi M, Mouri A, Suzuki C, Yoshimi A, Mamiya T, Ozaki N, Noda Y. Memantine ameliorates the impairment of social behaviors induced by a single social defeat stress as juveniles. Neuropharmacology 2022; 217:109208. [PMID: 35926580 DOI: 10.1016/j.neuropharm.2022.109208] [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: 03/03/2022] [Revised: 07/23/2022] [Accepted: 07/27/2022] [Indexed: 11/15/2022]
Abstract
Clinically, juveniles are more sensitive to stress than adults, and exposure to stress as juveniles prolongs psychiatric symptoms and causes treatment resistance. However, the efficacy of antidepressants for juveniles with psychiatric disorders is unknown. In the present study, we investigated whether the expression or development of impaired social behavior was attenuated by memantine, a NMDA receptor antagonist. In addition, we clarified the molecular mechanisms related to intracellular signal transduction through NMDA receptors and the ameliorating effect of memantine in mice with impaired social behavior. Acute administration of memantine before the social interaction test, but not before exposure to social defeat stress, attenuated social behavioral impairment. A single social defeat stress increased the phosphorylation of NMDA receptor subunit GluN2A and extracellular-signal-related kinase 1/2 (ERK1/2). Memantine inhibited the increase of phosphorylated GluN2A and ERK1/2 resulting from social interaction behavior. In both GluN2A deficient and pharmacological blockaded mice, social behavioral impairment was not observed in the social interaction test through regulation of ERK1/2 phosphorylation. These findings suggest that memantine ameliorates social behavioral impairment in mice exposed to a single social defeat stress as juveniles by regulating the NMDA receptor and subsequent ERK1/2 signaling activation. Memantine may constitute a novel therapeutic drug for stress-related psychiatric disorders in juveniles with adverse juvenile experiences.
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Affiliation(s)
- Mikio Yoshida
- Division of Clinical Sciences and Neuropsychopharmacology, Meijo University Faculty and Graduate School of Pharmacy, Nagoya, Japan
| | - Sho Hasegawa
- Division of Clinical Sciences and Neuropsychopharmacology, Meijo University Faculty and Graduate School of Pharmacy, Nagoya, Japan
| | - Masayuki Taniguchi
- Division of Clinical Sciences and Neuropsychopharmacology, Meijo University Faculty and Graduate School of Pharmacy, Nagoya, Japan
| | - Akihiro Mouri
- Division of Clinical Sciences and Neuropsychopharmacology, Meijo University Faculty and Graduate School of Pharmacy, Nagoya, Japan
| | - Chiharu Suzuki
- Division of Clinical Sciences and Neuropsychopharmacology, Meijo University Faculty and Graduate School of Pharmacy, Nagoya, Japan
| | - Akira Yoshimi
- Division of Clinical Sciences and Neuropsychopharmacology, Meijo University Faculty and Graduate School of Pharmacy, Nagoya, Japan
| | - Takayoshi Mamiya
- Department of Chemical Pharmacology, Graduate School of Pharmacy, Meijo University, Nagoya, Japan
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yukihiro Noda
- Division of Clinical Sciences and Neuropsychopharmacology, Meijo University Faculty and Graduate School of Pharmacy, Nagoya, Japan.
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14
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Chen B, Qin G, Xiao J, Deng X, Lin A, Liu H. Transient neuroinflammation following surgery contributes to long-lasting cognitive decline in elderly rats via dysfunction of synaptic NMDA receptor. J Neuroinflammation 2022; 19:181. [PMID: 35831873 PMCID: PMC9281167 DOI: 10.1186/s12974-022-02528-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 06/12/2022] [Indexed: 11/27/2022] Open
Abstract
Background Perioperative neurocognitive disorders (PNDs) are considered the most common postoperative complication in geriatric patients. However, its pathogenesis is not fully understood. Surgery-triggered neuroinflammation is a major contributor to the development of PNDs. Neuroinflammation can influence N-methyl-D-aspartate receptor (NMDAR) expression or function which is closely associated with cognition. We, therefore, hypothesized that the persistent changes in NMDAR expression or function induced by transient neuroinflammation after surgery were involved in the development of PNDs. Methods Eighteen-month-old male Sprague–Dawley rats were subjected to abdominal surgery with sevoflurane anesthesia to establish the PNDs animal model. Then, we determined the transient neuroinflammation by detecting the protein levels of proinflammatory cytokines and microglia activation using ELISA, western blot, immunohistochemistry, and microglial morphological analysis from postoperative days 1–20. Persistent changes in NMDAR expression were determined by detecting the protein levels of NMDAR subunits from postoperative days 1–59. Subsequently, the dysfunction of synaptic NMDAR was evaluated by detecting the structural plasticity of dendritic spine using Golgi staining. Pull-down assay and western blot were used to detect the protein levels of Rac1-GTP, phosphor-cofilin, and Arp3, which contribute to the regulation of the structural plasticity of dendritic spine. Finally, glycyrrhizin, an anti-inflammatory agent, was administered to further explore the role of synaptic NMDAR dysfunction induced by transient neuroinflammation in the neuropathogenesis of PNDs. Results We showed that transient neuroinflammation induced by surgery caused sustained downregulation of synaptic NR2A and NR2B subunits in the dorsal hippocampus and led to a selective long-term spatial memory deficit. Meanwhile, the detrimental effect of neuroinflammation on the function of synaptic NMDARs was shown by the impaired structural plasticity of dendritic spines and decreased activity of the Rac1 signaling pathways during learning. Furthermore, anti-inflammatory treatment reversed the downregulation and hypofunction of synaptic NR2A and NR2B and subsequently rescued the long-term spatial memory deficit. Conclusions Our results identify sustained synaptic NR2A and NR2B downregulation and hypofunction induced by transient neuroinflammation following surgery as important contributors to the development of PNDs in elderly rats. Supplementary Information The online version contains supplementary material available at 10.1186/s12974-022-02528-5.
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Affiliation(s)
- Bo Chen
- Department of Anesthesiology, Chongqing University Cancer Hospital, Chongqing, 400030, People's Republic of China
| | - Guangcheng Qin
- Laboratory Research Center, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Jingyu Xiao
- Department of Anesthesiology, Chongqing University Cancer Hospital, Chongqing, 400030, People's Republic of China
| | - Xiaoyuan Deng
- Department of Anesthesiology, Chongqing University Cancer Hospital, Chongqing, 400030, People's Republic of China
| | - Aolei Lin
- Department of Neurology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Hongliang Liu
- Department of Anesthesiology, Chongqing University Cancer Hospital, Chongqing, 400030, People's Republic of China.
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15
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SAPAP3 regulates epileptic seizures involving GluN2A in post-synaptic densities. Cell Death Dis 2022; 13:437. [PMID: 35513389 PMCID: PMC9072407 DOI: 10.1038/s41419-022-04876-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 04/15/2022] [Accepted: 04/21/2022] [Indexed: 12/14/2022]
Abstract
Aberrantly synchronized neuronal discharges in the brain lead to epilepsy, a devastating neurological disease whose pathogenesis and mechanism are unclear. SAPAP3, a cytoskeletal protein expressed at high levels in the postsynaptic density (PSD) of excitatory synapses, has been well studied in the striatum, but the role of SAPAP3 in epilepsy remains elusive. In this study, we sought to investigate the molecular, cellular, electrophysiological and behavioral consequences of SAPAP3 perturbations in the mouse hippocampus. We identified a significant increase in the SAPAP3 levels in patients with temporal lobe epilepsy (TLE) and in mouse models of epilepsy. In addition, behavioral studies showed that the downregulation of SAPAP3 by shRNA decreased the seizure severity and that the overexpression of SAPAP3 by recombinant SAPAP3 yielded the opposite effect. Moreover, SAPAP3 affected action potentials (APs), miniature excitatory postsynaptic currents (mEPSCs) and N-methyl-D-aspartate receptor (NMDAR)-mediated currents in the CA1 region, which indicated that SAPAP3 plays an important role in excitatory synaptic transmission. Additionally, the levels of the GluN2A protein, which is involved in synaptic function, were perturbed in the hippocampal PSD, and this perturbation was accompanied by ultrastructural morphological changes. These results revealed a previously unknown function of SAPAP3 in epileptogenesis and showed that SAPAP3 may represent a novel target for the treatment of epilepsy.
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16
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Glycoproteins of Capsosiphon fulvescens modulate synaptic clustering of PSD95 and prevent social isolation-induced cognitive decline in aged male rats. J Nutr Biochem 2022; 107:109054. [DOI: 10.1016/j.jnutbio.2022.109054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 03/27/2022] [Accepted: 04/06/2022] [Indexed: 11/18/2022]
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17
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Yang XK, Zhang FL, Wu WT, Tang Y, Yan J, Liu YL, Amatore C, Huang WH. Quantitative Nano-amperometric Measurement of Intravesicular Glutamate Content and its Sub-Quantal Release by Living Neurons. Angew Chem Int Ed Engl 2021; 60:15803-15808. [PMID: 33929780 DOI: 10.1002/anie.202100882] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Indexed: 11/10/2022]
Abstract
Quantitative measurements of intravesicular glutamate (Glu) and of transient exocytotic release contents directly from individual living neurons are highly desired for understanding the mechanisms (full or sub-quantal release?) of synaptic transmission and plasticity. However, this could not be achieved so far due to the lack of adequate experimental strategies relying on selective and sensitive Glu nanosensors. Herein, we introduce a novel electrochemical Glu nanobiosensor based on a single SiC nanowire that can selectively measure in real-time Glu fluxes released via exocytosis by large Glu vesicles (ca. 125 nm diameter) present in single hippocampal axonal varicosities as well as their intravesicular content before exocytosis. These measurements revealed a sub-quantal release mode in living hippocampal neurons, viz., only ca. one third to one half of intravesicular Glu molecules are released by individual vesicles during exocytotic events. Importantly, this fraction remained practically the same when hippocampal neurons were pretreated with L-Glu-precursor L-glutamine, while it significantly increased after zinc treatment, although in both cases the intravesicular contents were drastically affected.
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Affiliation(s)
- Xiao-Ke Yang
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Fu-Li Zhang
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Wen-Tao Wu
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Yun Tang
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Jing Yan
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Yan-Ling Liu
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Christian Amatore
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
- PASTEUR, Départment de Chimie, École Normale Supérieure, PSL Research University, Sorbonne University, UPMC Univ. Paris 06, CNRS, 24 rue Lhomond, 75005, Paris, France
| | - Wei-Hua Huang
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
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18
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Yang X, Zhang F, Wu W, Tang Y, Yan J, Liu Y, Amatore C, Huang W. Quantitative Nano‐amperometric Measurement of Intravesicular Glutamate Content and its Sub‐Quantal Release by Living Neurons. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100882] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Xiao‐Ke Yang
- Sauvage Center for Molecular Sciences College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Fu‐Li Zhang
- Sauvage Center for Molecular Sciences College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Wen‐Tao Wu
- Sauvage Center for Molecular Sciences College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Yun Tang
- Sauvage Center for Molecular Sciences College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Jing Yan
- Sauvage Center for Molecular Sciences College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Yan‐Ling Liu
- Sauvage Center for Molecular Sciences College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
| | - Christian Amatore
- State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
- PASTEUR, Départment de Chimie École Normale Supérieure PSL Research University Sorbonne University UPMC Univ. Paris 06 CNRS 24 rue Lhomond 75005 Paris France
| | - Wei‐Hua Huang
- Sauvage Center for Molecular Sciences College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China
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19
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Bellia F, Vismara M, Annunzi E, Cifani C, Benatti B, Dell'Osso B, D'Addario C. Genetic and epigenetic architecture of Obsessive-Compulsive Disorder: In search of possible diagnostic and prognostic biomarkers. J Psychiatr Res 2021; 137:554-571. [PMID: 33213890 DOI: 10.1016/j.jpsychires.2020.10.040] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 10/25/2020] [Accepted: 10/28/2020] [Indexed: 02/07/2023]
Abstract
Obsessive-Compulsive Disorder (OCD) is a prevalent and severe clinical condition whose hallmarks are excessive, unwanted thoughts (obsessions) and repetitive behaviors (compulsions). The onset of symptoms generally occurs during pre-adult life and typically affects subjects in different aspects of their life's, compromising social and professional relationships. Although robust evidence suggests a genetic component in the etiopathogenesis of OCD, the causes of the disorder are still not completely understood. It is thus of relevance to take into account how genes interact with environmental risk factors, thought to be mediated by epigenetic mechanisms. We here provide an overview of genetic and epigenetic mechanisms of OCD, focusing on the modulation of key central nervous system genes, in the attempt to suggest possible disease biomarkers.
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Affiliation(s)
- Fabio Bellia
- Faculty of Bioscience, University of Teramo, Teramo, Italy
| | - Matteo Vismara
- Department of Biomedical and Clinical Sciences Luigi Sacco, University of Milan, Milano, Italy
| | - Eugenia Annunzi
- Faculty of Bioscience, University of Teramo, Teramo, Italy; Department of Neuroscience, Imaging and Clinical Sciences, Gabriele D'Annunzio University, Chieti, Italy
| | - Carlo Cifani
- School of Pharmacy, University of Camerino, Camerino, Italy
| | - Beatrice Benatti
- Department of Biomedical and Clinical Sciences Luigi Sacco, University of Milan, Milano, Italy; CRC "Aldo Ravelli", University of Milan, Milano, Italy
| | - Bernardo Dell'Osso
- Department of Biomedical and Clinical Sciences Luigi Sacco, University of Milan, Milano, Italy; CRC "Aldo Ravelli", University of Milan, Milano, Italy; Department of Psychiatry and Behavioral Sciences, Stanford University, CA, USA.
| | - Claudio D'Addario
- Faculty of Bioscience, University of Teramo, Teramo, Italy; Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.
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20
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Chiola S, Napan KL, Wang Y, Lazarenko RM, Armstrong CJ, Cui J, Shcheglovitov A. Defective AMPA-mediated synaptic transmission and morphology in human neurons with hemizygous SHANK3 deletion engrafted in mouse prefrontal cortex. Mol Psychiatry 2021; 26:4670-4686. [PMID: 33558651 PMCID: PMC8349370 DOI: 10.1038/s41380-021-01023-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 12/18/2020] [Accepted: 01/08/2021] [Indexed: 01/12/2023]
Abstract
Genetic abnormalities in synaptic proteins are common in individuals with autism; however, our understanding of the cellular and molecular mechanisms disrupted by these abnormalities is limited. SHANK3 is a postsynaptic scaffolding protein of excitatory synapses that has been found mutated or deleted in most patients with 22q13 deletion syndrome and about 2% of individuals with idiopathic autism and intellectual disability. Here, we generated CRISPR/Cas9-engineered human pluripotent stem cells (PSCs) with complete hemizygous SHANK3 deletion (SHANK3+/-), which is the most common genetic abnormality in patients, and investigated the synaptic and morphological properties of SHANK3-deficient PSC-derived cortical neurons engrafted in the mouse prefrontal cortex. We show that human PSC-derived neurons integrate into the mouse cortex by acquiring appropriate cortical layer identities and by receiving and sending anatomical projections from/to multiple different brain regions. We also demonstrate that SHANK3-deficient human neurons have reduced AMPA-, but not NMDA- or GABA-mediated synaptic transmission and exhibit impaired dendritic arbors and spines, as compared to isogenic control neurons co-engrafted in the same brain region. Together, this study reveals specific synaptic and morphological deficits caused by SHANK3 hemizygosity in human cortical neurons at different developmental stages under physiological conditions and validates the use of co-engrafted control and mutant human neurons as a new platform for studying connectivity deficits in genetic neurodevelopmental disorders associated with autism.
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Affiliation(s)
- Simone Chiola
- grid.223827.e0000 0001 2193 0096Departments of Neurobiology, University of Utah, Salt Lake City, UT USA
| | - Kandy L. Napan
- grid.223827.e0000 0001 2193 0096Departments of Neurobiology, University of Utah, Salt Lake City, UT USA
| | - Yueqi Wang
- grid.223827.e0000 0001 2193 0096Departments of Neurobiology, University of Utah, Salt Lake City, UT USA ,grid.223827.e0000 0001 2193 0096Neuroscience Graduate Program, University of Utah, Salt Lake City, UT USA
| | - Roman M. Lazarenko
- grid.152326.10000 0001 2264 7217Departments of Pharmacology, Vanderbilt University, Nashville, TN USA
| | - Celeste J. Armstrong
- grid.223827.e0000 0001 2193 0096Departments of Neurobiology, University of Utah, Salt Lake City, UT USA
| | - Jun Cui
- grid.41891.350000 0001 2156 6108Department of Cell Biology and Neurosciences, Montana State University, Bozeman, MT USA
| | - Aleksandr Shcheglovitov
- Departments of Neurobiology, University of Utah, Salt Lake City, UT, USA. .,Neuroscience Graduate Program, University of Utah, Salt Lake City, UT, USA. .,Department of Biomedical Engineering, University of Utah, Salt Lake City, UT, USA. .,Department of Adult Psychiatry, University of Utah, Salt Lake City, UT, USA.
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Huang J, Shen C, Ye R, Shi Y, Li W. The Effect of Early Maternal Separation Combined With Adolescent Chronic Unpredictable Mild Stress on Behavior and Synaptic Plasticity in Adult Female Rats. Front Psychiatry 2021; 12:539299. [PMID: 33746787 PMCID: PMC7973020 DOI: 10.3389/fpsyt.2021.539299] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 02/05/2021] [Indexed: 12/28/2022] Open
Abstract
Our aims were to evaluate the depression model of early maternal separation (MS) combined with adolescent chronic unpredictable mild stress (CUMS) in female adult SD rats to observe the behavior and the expressions of synaptic proteins in rats and to provide a reference for the screening of antidepressant drug activity. In our study, MS and CUMS were conducted to establish a dual stress model on female rats. Behavioral tests, including the sucrose preference test, open field test, and zero maze test, were used to detect depression-like and anxiety-like behavior of animals. Nissl staining was used to detect the number of neuronal cells in the hippocampus CA1 and DG regions of rats from each group. Synaptophysin (SYN), postsynaptic density-95 (PSD-95), and growth-associated protein-43 (GAP-43) expressions in the hippocampus were detected by western blot. Expression of the hippocampus SYN protein was further detected by immunohistochemistry. Rats in the MS+CUMS group presented more serious depression-like and anxiety-like behavior than in the MS group. Also, few Nissl bodies in the hippocampus CA1 and DG regions, less percentage of SYN-positive cells, and downregulated expressions of SYN, PSD-95, and GAP43 were found in the hippocampus of rats in MS+CUMS group. In conclusion, adult female rats that underwent MS and CUMS performed more critical depression-like and anxiety-like behaviors, and this process may be resulted from synaptic plasticity impairment.
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Affiliation(s)
- Jiawen Huang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China.,Institute of Clinical Pharmacology, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Chongkun Shen
- School of Fundamental Medical Science, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ran Ye
- Heyuan People's Hospital, Heyuan, China.,School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yafei Shi
- School of Fundamental Medical Science, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Weirong Li
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China.,Institute of Clinical Pharmacology, Guangzhou University of Chinese Medicine, Guangzhou, China
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22
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Astrocyte-secreted IL-33 mediates homeostatic synaptic plasticity in the adult hippocampus. Proc Natl Acad Sci U S A 2020; 118:2020810118. [PMID: 33443211 PMCID: PMC7817131 DOI: 10.1073/pnas.2020810118] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Synaptic plasticity in the hippocampus is important for learning and memory formation. In particular, homeostatic synaptic plasticity enables neurons to restore their activity levels in response to chronic neuronal activity changes. While astrocytes modulate synaptic functions via the secretion of factors, the underlying molecular mechanisms remain unclear. Here, we show that suppression of hippocampal neuronal activity increases cytokine IL-33 release from astrocytes in the CA1 region. Activation of IL-33 and its neuronal ST2 receptor complex promotes functional excitatory synapse formation. Moreover, IL-33/ST2 signaling is important for the neuronal activity blockade-induced increase of CA1 excitatory synapses in vivo and spatial memory formation. This study suggests that astrocyte-secreted IL-33 acts as a negative feedback control signal to regulate hippocampal homeostatic synaptic plasticity. Hippocampal synaptic plasticity is important for learning and memory formation. Homeostatic synaptic plasticity is a specific form of synaptic plasticity that is induced upon prolonged changes in neuronal activity to maintain network homeostasis. While astrocytes are important regulators of synaptic transmission and plasticity, it is largely unclear how they interact with neurons to regulate synaptic plasticity at the circuit level. Here, we show that neuronal activity blockade selectively increases the expression and secretion of IL-33 (interleukin-33) by astrocytes in the hippocampal cornu ammonis 1 (CA1) subregion. This IL-33 stimulates an increase in excitatory synapses and neurotransmission through the activation of neuronal IL-33 receptor complex and synaptic recruitment of the scaffold protein PSD-95. We found that acute administration of tetrodotoxin in hippocampal slices or inhibition of hippocampal CA1 excitatory neurons by optogenetic manipulation increases IL-33 expression in CA1 astrocytes. Furthermore, IL-33 administration in vivo promotes the formation of functional excitatory synapses in hippocampal CA1 neurons, whereas conditional knockout of IL-33 in CA1 astrocytes decreases the number of excitatory synapses therein. Importantly, blockade of IL-33 and its receptor signaling in vivo by intracerebroventricular administration of its decoy receptor inhibits homeostatic synaptic plasticity in CA1 pyramidal neurons and impairs spatial memory formation in mice. These results collectively reveal an important role of astrocytic IL-33 in mediating the negative-feedback signaling mechanism in homeostatic synaptic plasticity, providing insights into how astrocytes maintain hippocampal network homeostasis.
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23
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Niu M, Zheng N, Wang Z, Gao Y, Luo X, Chen Z, Fu X, Wang Y, Wang T, Liu M, Yao T, Yao P, Meng J, Zhou Y, Ge Y, Wang Z, Ma Q, Xu H, Zhang YW. RAB39B Deficiency Impairs Learning and Memory Partially Through Compromising Autophagy. Front Cell Dev Biol 2020; 8:598622. [PMID: 33364235 PMCID: PMC7753041 DOI: 10.3389/fcell.2020.598622] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 11/16/2020] [Indexed: 12/14/2022] Open
Abstract
RAB39B is located on the X chromosome and encodes the RAB39B protein that belongs to the RAB family. Mutations in RAB39B are known to be associated with X-linked intellectual disability (XLID), Parkinson’s disease, and autism. However, the patho/physiological functions of RAB39B remain largely unknown. In the present study, we established Rab39b knockout (KO) mice, which exhibited overall normal birth rate and morphologies as wild type mice. However, Rab39b deficiency led to reduced anxiety and impaired learning and memory in 2 months old mice. Deletion of Rab39b resulted in impairments of synaptic structures and functions, with reductions in NMDA receptors in the postsynaptic density (PSD). RAB39B deficiency also compromised autophagic flux at basal level, which could be overridden by rapamycin-induced autophagy activation. Further, treatment with rapamycin partially rescued impaired memory and synaptic plasticity in Rab39b KO mice, without affecting the PSD distribution of NMDA receptors. Together, these results suggest that RAB39B plays an important role in regulating both autophagy and synapse formation, and that targeting autophagy may have potential for treating XLID caused by RAB39B loss-of-function mutations.
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Affiliation(s)
- Mengxi Niu
- Department of Neurology, The First Affiliated Hospital of Xiamen University, Xiamen, China.,Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, Institute of Neuroscience, School of Medicine, Xiamen University, Xiamen, China
| | - Naizhen Zheng
- Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, Institute of Neuroscience, School of Medicine, Xiamen University, Xiamen, China
| | - Zijie Wang
- Department of Neurosurgery, Xiang'an Hospital of Xiamen University, Xiamen, China
| | - Yue Gao
- Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, Institute of Neuroscience, School of Medicine, Xiamen University, Xiamen, China
| | - Xianghua Luo
- Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, Institute of Neuroscience, School of Medicine, Xiamen University, Xiamen, China
| | - Zhicai Chen
- Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, Institute of Neuroscience, School of Medicine, Xiamen University, Xiamen, China
| | - Xing Fu
- Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, Institute of Neuroscience, School of Medicine, Xiamen University, Xiamen, China
| | - Yanyan Wang
- Department of Neurology, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Ting Wang
- Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, Institute of Neuroscience, School of Medicine, Xiamen University, Xiamen, China
| | - Manqing Liu
- Department of Neurology, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Tingting Yao
- Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, Institute of Neuroscience, School of Medicine, Xiamen University, Xiamen, China
| | - Peijie Yao
- Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, Institute of Neuroscience, School of Medicine, Xiamen University, Xiamen, China
| | - Jian Meng
- Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, Institute of Neuroscience, School of Medicine, Xiamen University, Xiamen, China
| | - Yunqiang Zhou
- Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, Institute of Neuroscience, School of Medicine, Xiamen University, Xiamen, China
| | - Yunlong Ge
- Department of Neurosurgery, Xiang'an Hospital of Xiamen University, Xiamen, China
| | - Zhanxiang Wang
- Department of Neurosurgery, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Qilin Ma
- Department of Neurology, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Huaxi Xu
- Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, Institute of Neuroscience, School of Medicine, Xiamen University, Xiamen, China
| | - Yun-Wu Zhang
- Department of Neurology, The First Affiliated Hospital of Xiamen University, Xiamen, China.,Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, Institute of Neuroscience, School of Medicine, Xiamen University, Xiamen, China
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24
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Sun DS, Zhong G, Cao HX, Hu Y, Hong XY, Li T, Li X, Liu Q, Wang Q, Ke D, Liu GP, Ma RH, Luo DJ. Repeated Restraint Stress Led to Cognitive Dysfunction by NMDA Receptor-Mediated Hippocampal CA3 Dendritic Spine Impairments in Juvenile Sprague-Dawley Rats. Front Mol Neurosci 2020; 13:552787. [PMID: 33192290 PMCID: PMC7604534 DOI: 10.3389/fnmol.2020.552787] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 08/19/2020] [Indexed: 11/13/2022] Open
Abstract
Although numerous studies have indicated that chronic stress causes cognitive dysfunction with the impairment of synaptic structures and functions, the relationship between cognitive deficits induced by repeated restraint stress and the level of NMDA receptors in the subregion of the hippocampus has been relatively unknown until now. In this study, 3-week-old male Sprague-Dawley rats were exposed to repeated restraint stress for seven consecutive days, their cognitive functions were evaluated through behavioral tests, and then they were sacrificed for electrophysiological, morphological, and biochemical assays. Chronic repeated restraint stress led to cognitive and electrophysiological impairments, with a reduced density of dendritic spines. We also found that the protein level of NMDA receptors only increased in the hippocampal CA3 region. Nevertheless, repeated restraint stress-induced cognitive and synaptic dysfunction were effectively reversed by Ro25-6981, an inhibitor of the GluN2B receptor. These findings suggest that repeated restraint stress-induced synaptic and cognitive deficits are probably mediated through NMDA receptors.
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Affiliation(s)
- Dong-Sheng Sun
- Institute of Anesthesiology & Pain (IAP), Department of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Gang Zhong
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hong-Xia Cao
- Department of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yu Hu
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiao-Yue Hong
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ting Li
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiao Li
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qian Liu
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qun Wang
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Dan Ke
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Gong-Ping Liu
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Rong-Hong Ma
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Dan-Ju Luo
- Department of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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25
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Dolgacheva LP, Tuleukhanov ST, Zinchenko VP. Participation of Ca2+-Permeable AMPA Receptors in Synaptic Plasticity. BIOCHEMISTRY MOSCOW SUPPLEMENT SERIES A-MEMBRANE AND CELL BIOLOGY 2020. [DOI: 10.1134/s1990747820030046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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26
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CPG15/Neuritin Mimics Experience in Selecting Excitatory Synapses for Stabilization by Facilitating PSD95 Recruitment. Cell Rep 2020; 28:1584-1595.e5. [PMID: 31390571 PMCID: PMC6740334 DOI: 10.1016/j.celrep.2019.07.012] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 06/11/2019] [Accepted: 07/02/2019] [Indexed: 11/24/2022] Open
Abstract
A key feature of brain plasticity is the experience-dependent selection of optimal connections· implemented by a set of activity-regulated genes that dynamically adjust synapse strength and number. The activity-regulated gene cpg15/neuritin has been previously implicated in stabilization and maturation of excitatory synapses. Here· we combine two-photon microscopy with genetic and sensory manipulations to dissect excitatory synapse formation in vivo and examine the role of activity and CPG15 in dendritic spine formation, PSD95 recruitment, and synapse stabilization. We find that neither visual experience nor CPG15 is required for spine formation. However, PSD95 recruitment to nascent spines and their subsequent stabilization requires both. Further, cell-autonomous CPG15 expression is sufficient to replace experience in facilitating PSD95 recruitment and spine stabilization. CPG15 directly interacts with α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptors on immature dendritic spines, suggesting a signaling mode for this small extracellular molecule acting as an experience-dependent “selector” for spine stabilization and synapse maturation. Experience plays a key role in formation and continuous optimization of brain circuits. Subramanian et al. show that the molecule CPG15/neuritin can replace experience in selecting which nascent contacts between neurons are retained, facilitating the recruitment of proteins that promote synapse maturation and stabilization.
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27
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Chou VT, Johnson SA, Van Vactor D. Synapse development and maturation at the drosophila neuromuscular junction. Neural Dev 2020; 15:11. [PMID: 32741370 PMCID: PMC7397595 DOI: 10.1186/s13064-020-00147-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 07/14/2020] [Indexed: 12/12/2022] Open
Abstract
Synapses are the sites of neuron-to-neuron communication and form the basis of the neural circuits that underlie all animal cognition and behavior. Chemical synapses are specialized asymmetric junctions between a presynaptic neuron and a postsynaptic target that form through a series of diverse cellular and subcellular events under the control of complex signaling networks. Once established, the synapse facilitates neurotransmission by mediating the organization and fusion of synaptic vesicles and must also retain the ability to undergo plastic changes. In recent years, synaptic genes have been implicated in a wide array of neurodevelopmental disorders; the individual and societal burdens imposed by these disorders, as well as the lack of effective therapies, motivates continued work on fundamental synapse biology. The properties and functions of the nervous system are remarkably conserved across animal phyla, and many insights into the synapses of the vertebrate central nervous system have been derived from studies of invertebrate models. A prominent model synapse is the Drosophila melanogaster larval neuromuscular junction, which bears striking similarities to the glutamatergic synapses of the vertebrate brain and spine; further advantages include the simplicity and experimental versatility of the fly, as well as its century-long history as a model organism. Here, we survey findings on the major events in synaptogenesis, including target specification, morphogenesis, and the assembly and maturation of synaptic specializations, with a emphasis on work conducted at the Drosophila neuromuscular junction.
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Affiliation(s)
- Vivian T Chou
- Department of Cell Biology and Program in Neuroscience, Blavatnik Institute, Harvard Medical School, Boston, MA, 02115, USA
| | - Seth A Johnson
- Department of Cell Biology and Program in Neuroscience, Blavatnik Institute, Harvard Medical School, Boston, MA, 02115, USA.
| | - David Van Vactor
- Department of Cell Biology and Program in Neuroscience, Blavatnik Institute, Harvard Medical School, Boston, MA, 02115, USA.
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28
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Delint-Ramirez I, Segev A, Pavuluri A, Self DW, Kourrich S. Cocaine-Induced Synaptic Redistribution of NMDARs in Striatal Neurons Alters NMDAR-Dependent Signal Transduction. Front Neurosci 2020; 14:698. [PMID: 32760242 PMCID: PMC7371985 DOI: 10.3389/fnins.2020.00698] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 06/09/2020] [Indexed: 11/25/2022] Open
Abstract
The consequence of repeated cocaine exposure and prolonged abstinence on glutamate receptor expression in the nucleus accumbens has been extensively studied. However, the early effects of cocaine on NMDAR signaling remain unknown. NMDAR signaling depends on the subunit composition, subcellular localization, and the interaction with proteins at the postsynaptic density (PSD), where NMDARs and other proteins form supercomplexes that are responsible for the signaling pathways activated by NMDAR-induced Ca2+ influx. Here, we investigated the effect of cocaine on NMDAR subunit composition and subcellular localization after both intraperitoneal non-contingent cocaine and response-contingent intravenous cocaine self-administration in mice. We found that repeated cocaine exposure, regardless of the route or contingency of drug administration, decreases NMDAR interactions with the PSD and synaptic lipid rafts in the accumbens shell and dorsal striatum. We provide evidence that cocaine triggers an early redistribution of NMDARs from synaptic to extrasynaptic sites, and that this adaptation has implications in the activation of downstream signaling pathways. Thus, consistent with a loss of NMDAR function, cocaine-induced ERK phosphorylation is attenuated. Because early NMDAR activity contributes to the initiation of lasting addiction-relevant neuroadaptations, these data may hold clues into cellular mechanisms responsible for the development of cocaine addiction.
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Affiliation(s)
- Ilse Delint-Ramirez
- Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Amir Segev
- Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Asha Pavuluri
- Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - David W Self
- Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Saïd Kourrich
- Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, United States.,Département des Sciences Biologiques-CERMO-FC, Université du Québec à Montréal, Montreal, QC, Canada
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29
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Currò D, Navarra P, Samengo I, Martire M. P2X7 receptors exert a permissive effect on the activation of presynaptic AMPA receptors in rat trigeminal caudal nucleus glutamatergic nerve terminals. J Headache Pain 2020; 21:83. [PMID: 32615921 PMCID: PMC7330953 DOI: 10.1186/s10194-020-01153-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 06/29/2020] [Indexed: 12/12/2022] Open
Abstract
Background Purine receptors play roles in peripheral and central sensitization and are associated with migraine headache. We investigated the possibility that ATP plays a permissive role in the activation of AMPA receptors thus inducing Glu release from nerve terminals isolated from the rat trigeminal caudal nucleus (TCN). Methods Nerve endings isolated from the rat TCN were loaded with [3H]D-aspartic acid ([3H]D-ASP), layered into thermostated superfusion chambers, and perfused continuously with physiological medium, alone or with various test drugs. Radioactivity was measured to assess [3H]D-ASP release under different experimental conditions. Results Synaptosomal [3H]D-ASP spontaneous release was stimulated by ATP and to an even greater extent by the ATP analogue benzoylbenzoylATP (BzATP). The stimulation of [3H]D-ASP basal release by the purinergic agonists was prevented by the selective P2X7 receptor antagonist A438079. AMPA had no effect on basal [3H]D-ASP release, but the release observed when synaptosomes were exposed to AMPA plus a purinoceptor agonist exceeded that observed with ATP or BzATP alone. The selective AMPA receptor antagonist NBQX blocked this “excess” release. Co-exposure to AMPA and BzATP, each at a concentration with no release-stimulating effects, evoked a significant increase in [3H]D-ASP basal release, which was prevented by exposure to a selective AMPA antagonist. Conclusions P2X7 receptors expressed on glutamatergic nerve terminals in the rat TCN can mediate Glu release directly and indirectly by facilitating the activation of presynaptic AMPA receptors. The high level of glial ATP that occurs during chronic pain states can promote widespread release of Glu as well as can increase the function of AMPA receptors. In this manner, ATP contributes to the AMPA receptor activation involved in the onset and maintenance of the central sensitization associated with chronic pain.
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Affiliation(s)
- Diego Currò
- Institute of Pharmacology, School of Medicine, Università Cattolica del Sacro Cuore, Largo Francesco Vito, 1, 00168, Rome, Italy
| | - Pierluigi Navarra
- Institute of Pharmacology, School of Medicine, Università Cattolica del Sacro Cuore, Largo Francesco Vito, 1, 00168, Rome, Italy
| | - Irene Samengo
- Institute of Pharmacology, School of Medicine, Università Cattolica del Sacro Cuore, Largo Francesco Vito, 1, 00168, Rome, Italy
| | - Maria Martire
- Institute of Pharmacology, School of Medicine, Università Cattolica del Sacro Cuore, Largo Francesco Vito, 1, 00168, Rome, Italy.
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30
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Regulation of TrkB cell surface expression-a mechanism for modulation of neuronal responsiveness to brain-derived neurotrophic factor. Cell Tissue Res 2020; 382:5-14. [PMID: 32556728 PMCID: PMC7529634 DOI: 10.1007/s00441-020-03224-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 04/27/2020] [Indexed: 12/27/2022]
Abstract
Neurotrophin signaling via receptor tyrosine kinases is essential for the development and function of the nervous system in vertebrates. TrkB activation and signaling show substantial differences to other receptor tyrosine kinases of the Trk family that mediate the responses to nerve growth factor and neurotrophin-3. Growing evidence suggests that TrkB cell surface expression is highly regulated and determines the sensitivity of neurons to brain-derived neurotrophic factor (BDNF). This translocation of TrkB depends on co-factors and modulators of cAMP levels, N-glycosylation, and receptor transactivation. This process can occur in very short time periods and the resulting rapid modulation of target cell sensitivity to BDNF could represent a mechanism for fine-tuning of synaptic plasticity and communication in complex neuronal networks. This review focuses on those modulatory mechanisms in neurons that regulate responsiveness to BDNF via control of TrkB surface expression.
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Abstract
In this issue of Neuron, Fossati et al. (2019) report a new constellation of players regulating inhibitory synaptogenesis. They show that GluD1, through a non-canonical ionotropic-independent mechanism, controls GABAergic synapse formation via trans-synaptic interactions mediated by extracellular cerebellin-4. They identify ARHGEF12 and PPP1R12A as GluD1 intracellular interactors and downstream effectors.
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Affiliation(s)
- Katherine L Villa
- Picower Institute for Learning and Memory, Departments of Biology and Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Elly Nedivi
- Picower Institute for Learning and Memory, Departments of Biology and Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
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32
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Yoo T, Kim SG, Yang SH, Kim H, Kim E, Kim SY. A DLG2 deficiency in mice leads to reduced sociability and increased repetitive behavior accompanied by aberrant synaptic transmission in the dorsal striatum. Mol Autism 2020; 11:19. [PMID: 32164788 PMCID: PMC7069029 DOI: 10.1186/s13229-020-00324-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 03/02/2020] [Indexed: 02/08/2023] Open
Abstract
Background DLG2, also known as postsynaptic density protein-93 (PSD-93) or chapsyn-110, is an excitatory postsynaptic scaffolding protein that interacts with synaptic surface receptors and signaling molecules. A recent study has demonstrated that mutations in the DLG2 promoter region are significantly associated with autism spectrum disorder (ASD). Although DLG2 is well known as a schizophrenia-susceptibility gene, the mechanisms that link DLG2 gene disruption with ASD-like behaviors remain unclear. Methods Mice lacking exon 14 of the Dlg2 gene (Dlg2–/– mice) were used to investigate whether Dlg2 deletion leads to ASD-like behavioral abnormalities. To this end, we performed a battery of behavioral tests assessing locomotion, anxiety, sociability, and repetitive behaviors. In situ hybridization was performed to determine expression levels of Dlg2 mRNA in different mouse brain regions during embryonic and postnatal brain development. We also measured excitatory and inhibitory synaptic currents to determine the impacts of Dlg2 deletion on synaptic transmission in the dorsolateral striatum. Results Dlg2–/– mice showed hypoactivity in a novel environment. They also exhibited decreased social approach, but normal social novelty recognition, compared with wild-type animals. In addition, Dlg2–/– mice displayed strong self-grooming, both in home cages and novel environments. Dlg2 mRNA levels in the striatum were heightened until postnatal day 7 in mice, implying potential roles of DLG2 in the development of striatal connectivity. In addition, the frequency of excitatory, but not inhibitory, spontaneous postsynaptic currents in the Dlg2–/– dorsolateral striatum was significantly reduced. Conclusion These results suggest that homozygous Dlg2 deletion in mice leads to ASD-like behavioral phenotypes, including social deficits and increased repetitive behaviors, as well as reductions in excitatory synaptic input onto dorsolateral spiny projection neurons, implying that the dorsal striatum is one of the brain regions vulnerable to the developmental dysregulation of DLG2.
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Affiliation(s)
- Taesun Yoo
- Department of Biological Sciences, Korea Advanced Institute for Science and Technology (KAIST), Daejeon, 34141, Korea
| | - Sun-Gyun Kim
- Center for Synaptic Brain Dysfunctions, Institute for Basic Science (IBS), Daejeon, 34141, Korea
| | - Soo Hyun Yang
- Department of Anatomy, College of Medicine, Korea University, Seoul, 02841, Korea
| | - Hyun Kim
- Department of Anatomy, College of Medicine, Korea University, Seoul, 02841, Korea
| | - Eunjoon Kim
- Department of Biological Sciences, Korea Advanced Institute for Science and Technology (KAIST), Daejeon, 34141, Korea.,Center for Synaptic Brain Dysfunctions, Institute for Basic Science (IBS), Daejeon, 34141, Korea
| | - Soo Young Kim
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Korea.
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Lupori L, Sagona G, Fuchs C, Mazziotti R, Stefanov A, Putignano E, Napoli D, Strettoi E, Ciani E, Pizzorusso T. Site-specific abnormalities in the visual system of a mouse model of CDKL5 deficiency disorder. Hum Mol Genet 2020; 28:2851-2861. [PMID: 31108505 PMCID: PMC6736061 DOI: 10.1093/hmg/ddz102] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 05/10/2019] [Accepted: 05/13/2019] [Indexed: 12/12/2022] Open
Abstract
CDKL5 deficiency disorder (CDD) is a neurodevelopmental disorder characterized by a severe global developmental delay and early-onset seizures. Notably, patients show distinctive visual abnormalities often clinically diagnosed as cortical visual impairment. However, the involvement of cerebral cortical dysfunctions in the origin of the symptoms is poorly understood. CDD mouse models also display visual deficits, and cortical visual responses can be used as a robust biomarker in CDKL5 mutant mice. A deeper understanding of the circuits underlying the described visual deficits is essential for directing preclinical research and translational approaches. Here, we addressed this question in two ways: first, we performed an in-depth morphological analysis of the visual pathway, from the retina to the primary visual cortex (V1), of CDKL5 null mice. We found that the lack of CDKL5 produced no alteration in the organization of retinal circuits. Conversely, CDKL5 mutants showed reduced density and altered morphology of spines and decreased excitatory synapse marker PSD95 in the dorsal lateral geniculate nucleus and in V1. An increase in the inhibitory marker VGAT was selectively present in V1. Second, using a conditional CDKL5 knockout model, we showed that selective cortical deletion of CDKL5 from excitatory cells is sufficient to produce abnormalities of visual cortical responses, demonstrating that the normal function of cortical circuits is dependent on CDKL5. Intriguingly, these deficits were associated with morphological alterations of V1 excitatory and inhibitory synaptic contacts. In summary, this work proposes cortical circuit structure and function as a critically important target for studying CDD.
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Affiliation(s)
- Leonardo Lupori
- BIO@SNS Laboratory, Scuola Normale Superiore, Via Moruzzi 1, Pisa 56124, Italy.,Institute of Neuroscience, National Research Council, Via Moruzzi 1, Pisa 56124, Italy
| | - Giulia Sagona
- Institute of Neuroscience, National Research Council, Via Moruzzi 1, Pisa 56124, Italy.,Department of Neuroscience, Psychology, Drug Research and Child Health NEUROFARBA University of Florence, Area San Salvi-Pad. 26, Florence 50135, Italy.,Department of Developmental Neuroscience, IRCCS Stella Maris Foundation, Pisa 56128, Italy
| | - Claudia Fuchs
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna 40126, Italy
| | - Raffaele Mazziotti
- Institute of Neuroscience, National Research Council, Via Moruzzi 1, Pisa 56124, Italy.,Department of Neuroscience, Psychology, Drug Research and Child Health NEUROFARBA University of Florence, Area San Salvi-Pad. 26, Florence 50135, Italy
| | - Antonia Stefanov
- Institute of Neuroscience, National Research Council, Via Moruzzi 1, Pisa 56124, Italy
| | - Elena Putignano
- Institute of Neuroscience, National Research Council, Via Moruzzi 1, Pisa 56124, Italy
| | - Debora Napoli
- BIO@SNS Laboratory, Scuola Normale Superiore, Via Moruzzi 1, Pisa 56124, Italy.,Institute of Neuroscience, National Research Council, Via Moruzzi 1, Pisa 56124, Italy
| | - Enrica Strettoi
- Institute of Neuroscience, National Research Council, Via Moruzzi 1, Pisa 56124, Italy
| | - Elisabetta Ciani
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna 40126, Italy
| | - Tommaso Pizzorusso
- BIO@SNS Laboratory, Scuola Normale Superiore, Via Moruzzi 1, Pisa 56124, Italy.,Institute of Neuroscience, National Research Council, Via Moruzzi 1, Pisa 56124, Italy.,Department of Neuroscience, Psychology, Drug Research and Child Health NEUROFARBA University of Florence, Area San Salvi-Pad. 26, Florence 50135, Italy
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34
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Vincenzi M, Mercurio FA, Leone M. Sam Domains in Multiple Diseases. Curr Med Chem 2020; 27:450-476. [PMID: 30306850 DOI: 10.2174/0929867325666181009114445] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Revised: 07/26/2018] [Accepted: 08/27/2018] [Indexed: 12/13/2022]
Abstract
BACKGROUND The sterile alpha motif (Sam) domain is a small helical protein module, able to undergo homo- and hetero-oligomerization, as well as polymerization, thus forming different types of protein architectures. A few Sam domains are involved in pathological processes and consequently, they represent valuable targets for the development of new potential therapeutic routes. This study intends to collect state-of-the-art knowledge on the different modes by which Sam domains can favor disease onset and progression. METHODS This review was build up by searching throughout the literature, for: a) the structural properties of Sam domains, b) interactions mediated by a Sam module, c) presence of a Sam domain in proteins relevant for a specific disease. RESULTS Sam domains appear crucial in many diseases including cancer, renal disorders, cataracts. Often pathologies are linked to mutations directly positioned in the Sam domains that alter their stability and/or affect interactions that are crucial for proper protein functions. In only a few diseases, the Sam motif plays a kind of "side role" and cooperates to the pathological event by enhancing the action of a different protein domain. CONCLUSION Considering the many roles of the Sam domain into a significant variety of diseases, more efforts and novel drug discovery campaigns need to be engaged to find out small molecules and/or peptides targeting Sam domains. Such compounds may represent the pillars on which to build novel therapeutic strategies to cure different pathologies.
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Affiliation(s)
- Marian Vincenzi
- Institute of Biostructures and Bioimaging, National Research Council (CNR), Via Mezzocannone 16, 80134 Naples, Italy
| | - Flavia Anna Mercurio
- Institute of Biostructures and Bioimaging, National Research Council (CNR), Via Mezzocannone 16, 80134 Naples, Italy.,Cirpeb, InterUniversity Research Centre on Bioactive Peptides, University of Naples "Federico II", Via Mezzocannone, 16, 80134 Naples, Italy
| | - Marilisa Leone
- Institute of Biostructures and Bioimaging, National Research Council (CNR), Via Mezzocannone 16, 80134 Naples, Italy.,Cirpeb, InterUniversity Research Centre on Bioactive Peptides, University of Naples "Federico II", Via Mezzocannone, 16, 80134 Naples, Italy
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35
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Zhang P, Chen JS, Li QY, Sheng LX, Gao YX, Lu BZ, Zhu WB, Zhan XY, Li Y, Yuan ZB, Xu G, Qiu BT, Yan M, Guo CX, Wang YQ, Huang YJ, Zhang JX, Liu FY, Tang ZW, Lin SZ, Cooper DN, Yang HM, Wang J, Gao YQ, Yin W, Zhang GJ, Yan GM. Neuroprotectants attenuate hypobaric hypoxia-induced brain injuries in cynomolgus monkeys. Zool Res 2020; 41:3-19. [PMID: 31840949 PMCID: PMC6956719 DOI: 10.24272/j.issn.2095-8137.2020.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Hypobaric hypoxia (HH) exposure can cause serious brain injury as well as life-threatening cerebral edema in severe cases. Previous studies on the mechanisms of HH-induced brain injury have been conducted primarily using non-primate animal models that are genetically distant to humans, thus hindering the development of disease treatment. Here, we report that cynomolgus monkeys (Macacafascicularis) exposed to acute HH developed human-like HH syndrome involving severe brain injury and abnormal behavior. Transcriptome profiling of white blood cells and brain tissue from monkeys exposed to increasing altitude revealed the central role of the HIF-1 and other novel signaling pathways, such as the vitamin D receptor (VDR) signaling pathway, in co-regulating HH-induced inflammation processes. We also observed profound transcriptomic alterations in brains after exposure to acute HH, including the activation of angiogenesis and impairment of aerobic respiration and protein folding processes, which likely underlie the pathological effects of HH-induced brain injury. Administration of progesterone (PROG) and steroid neuroprotectant 5α-androst-3β,5,6β-triol (TRIOL) significantly attenuated brain injuries and rescued the transcriptomic changes induced by acute HH. Functional investigation of the affected genes suggested that these two neuroprotectants protect the brain by targeting different pathways, with PROG enhancing erythropoiesis and TRIOL suppressing glutamate-induced excitotoxicity. Thus, this study advances our understanding of the pathology induced by acute HH and provides potential compounds for the development of neuroprotectant drugs for therapeutic treatment.
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Affiliation(s)
- Pei Zhang
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China.,BGI-Shenzhen, Shenzhen, Guangdong 518083, China.,Section for Ecology and Evolution, Department of Biology, University of Copenhagen, Copenhagen DK-2100, Denmark
| | - Jie-Si Chen
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong 510080, China
| | - Qi-Ye Li
- BGI-Shenzhen, Shenzhen, Guangdong 518083, China
| | - Long-Xiang Sheng
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong 510080, China
| | - Yi-Xing Gao
- Institute of Medicine and Hygienic Equipment for High Altitude Region, College of High Altitude Military Medicine, Third Military Medical University, Chongqing 400038, China.,Key Laboratory of High Altitude Medicine of People's Liberation Army, Chongqing 400038, China.,Key Laboratory of High Altitude Environmental Medicine, Third Military Medical University, Ministry of Education, Chongqing 400038, China
| | - Bing-Zheng Lu
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong 510080, China
| | - Wen-Bo Zhu
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong 510080, China
| | | | - Yuan Li
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong 510080, China
| | - Zhi-Bing Yuan
- Institute of Medicine and Hygienic Equipment for High Altitude Region, College of High Altitude Military Medicine, Third Military Medical University, Chongqing 400038, China.,Key Laboratory of High Altitude Medicine of People's Liberation Army, Chongqing 400038, China.,Key Laboratory of High Altitude Environmental Medicine, Third Military Medical University, Ministry of Education, Chongqing 400038, China
| | - Gang Xu
- Institute of Medicine and Hygienic Equipment for High Altitude Region, College of High Altitude Military Medicine, Third Military Medical University, Chongqing 400038, China.,Key Laboratory of High Altitude Medicine of People's Liberation Army, Chongqing 400038, China.,Key Laboratory of High Altitude Environmental Medicine, Third Military Medical University, Ministry of Education, Chongqing 400038, China
| | - Bi-Tao Qiu
- Section for Ecology and Evolution, Department of Biology, University of Copenhagen, Copenhagen DK-2100, Denmark
| | - Min Yan
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong 510080, China
| | | | - You-Qiong Wang
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong 510080, China
| | - Yi-Jun Huang
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong 510080, China
| | - Jing-Xia Zhang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China
| | - Fu-Yu Liu
- Institute of Medicine and Hygienic Equipment for High Altitude Region, College of High Altitude Military Medicine, Third Military Medical University, Chongqing 400038, China.,Key Laboratory of High Altitude Medicine of People's Liberation Army, Chongqing 400038, China.,Key Laboratory of High Altitude Environmental Medicine, Third Military Medical University, Ministry of Education, Chongqing 400038, China
| | - Zhong-Wei Tang
- Institute of Medicine and Hygienic Equipment for High Altitude Region, College of High Altitude Military Medicine, Third Military Medical University, Chongqing 400038, China.,Key Laboratory of High Altitude Medicine of People's Liberation Army, Chongqing 400038, China.,Key Laboratory of High Altitude Environmental Medicine, Third Military Medical University, Ministry of Education, Chongqing 400038, China
| | - Sui-Zhen Lin
- Guangzhou Cellprotek Pharmaceutical Co. Ltd., Guangzhou, Guangdong 510663, China
| | - David N. Cooper
- Institute of Medical Genetics, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK
| | - Huan-Ming Yang
- BGI-Shenzhen, Shenzhen, Guangdong 518083, China.,James D. Watson Institute of Genome Sciences, Hangzhou, Zhejiang 310058, China
| | - Jian Wang
- BGI-Shenzhen, Shenzhen, Guangdong 518083, China.,James D. Watson Institute of Genome Sciences, Hangzhou, Zhejiang 310058, China
| | - Yu-Qi Gao
- Institute of Medicine and Hygienic Equipment for High Altitude Region, College of High Altitude Military Medicine, Third Military Medical University, Chongqing 400038, China.,Key Laboratory of High Altitude Medicine of People's Liberation Army, Chongqing 400038, China.,Key Laboratory of High Altitude Environmental Medicine, Third Military Medical University, Ministry of Education, Chongqing 400038, China. E-mail:
| | - Wei Yin
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong 510080, China. E-mail:
| | - Guo-Jie Zhang
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China.,Section for Ecology and Evolution, Department of Biology, University of Copenhagen, Copenhagen DK-2100, Denmark.,Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, Kunming, Yunnan 650223, China.,China National Genebank, BGI-Shenzhen, Shenzhen, Guangdong 518120, China. E-mail:
| | - Guang-Mei Yan
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong 510080, China. E-mail:
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Linking Nanoscale Dynamics of AMPA Receptor Organization to Plasticity of Excitatory Synapses and Learning. J Neurosci 2019; 38:9318-9329. [PMID: 30381423 DOI: 10.1523/jneurosci.2119-18.2018] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 09/21/2018] [Accepted: 09/21/2018] [Indexed: 11/21/2022] Open
Abstract
The spatiotemporal organization of neurotransmitter receptors in the postsynaptic membrane is a fundamental determinant of synaptic transmission and thus of information processing by the brain. The ionotropic AMPA subtype of glutamate receptors (AMPARs) mediate fast excitatory synaptic transmission in the CNS. The number of AMPARs located en face presynaptic glutamate release sites sets the efficacy of synaptic transmission. Understanding how this number is set and regulated has been the topic of intense research in the last two decades. We showed that AMPARs are not stable in the synapse as initially thought. They continuously enter and exit the postsynaptic density by lateral diffusion, and they exchange between the neuronal surface and intracellular compartments by endocytosis and exocytosis at extrasynaptic sites. Regulation of these various trafficking pathways has emerged as a key mechanism for activity-dependent plasticity of synaptic transmission, a process important for learning and memory. I here present my view of these findings. In particular, the advent of super-resolution microscopy and single-molecule tracking has helped to uncover the intricacy of AMPARs' dynamic organization at the nanoscale. In addition, AMPAR surface diffusion is highly regulated by a variety of factors, including neuronal activity, stress hormones, and neurodegeneration, suggesting that AMPAR diffusion-trapping may play a central role in synapse function. Using innovative tools to understand further the link between receptor dynamics and synapse plasticity is now unveiling new molecular mechanisms of learning. Modifying AMPAR dynamics may emerge as a new target to correct synapse dysfunction in the diseased brain.
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37
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A Single Session of Aerobic Exercise Mediates Plasticity-Related Phosphorylation in both the Rat Motor Cortex and Hippocampus. Neuroscience 2019; 412:160-174. [PMID: 31181370 DOI: 10.1016/j.neuroscience.2019.05.051] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 05/23/2019] [Accepted: 05/24/2019] [Indexed: 12/23/2022]
Abstract
A single session of aerobic exercise may offer one means to "prime" motor regions to be more receptive to the acquisition of a motor skill; however, the mechanisms whereby this priming may occur are not clear. One possible explanation may be related to the post-translational modification of plasticity-related receptors and their associated intracellular signaling molecules, given that these proteins are integral to the development of synaptic plasticity. In particular, phosphorylation governs the biophysical properties (e.g., Ca2+ conductance) and the migratory patterns (i.e., trafficking) of plasticity-related receptors by altering the relative density of specific receptor subunits at synapses. We hypothesized that a single session of exercise would alter the subunit phosphorylation of plasticity-related receptors (AMPA receptors, NMDA receptors) and signaling molecules (PKA, CaMKII) in a manner that would serve to prime motor cortex. Young, male Sprague-Dawley rats (n = 24) were assigned to either exercise (Moderate, Exhaustion), or non-exercising (Sedentary) groups. Immediately following a single session of treadmill exercise, whole tissue homogenates were prepared from both the motor cortex and hippocampus. We observed a robust (1.2-2.0× greater than sedentary) increase in tyrosine phosphorylation of AMPA (GluA1,2) and NMDA (GluN2A,B) receptor subunits, and a clear indication that exercise preferentially affects pPKA over pCaMKII. The changes were found, specifically, following moderate, but not maximal, acute aerobic exercise in both motor cortex and hippocampus. Given the requirement for these proteins during the early phases of plasticity induction, the possibility exists that exercise-induced priming may occur by altering the phosphorylation of plasticity-related proteins.
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38
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Hasegawa S, Yoshimi A, Mouri A, Uchida Y, Hida H, Mishina M, Yamada K, Ozaki N, Nabeshima T, Noda Y. Acute administration of ketamine attenuates the impairment of social behaviors induced by social defeat stress exposure as juveniles via activation of α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptors. Neuropharmacology 2019; 148:107-116. [DOI: 10.1016/j.neuropharm.2018.12.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 12/05/2018] [Accepted: 12/18/2018] [Indexed: 12/11/2022]
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39
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Shah FA, Liu G, Al Kury LT, Zeb A, Abbas M, Li T, Yang X, Liu F, Jiang Y, Li S, Koh PO. Melatonin Protects MCAO-Induced Neuronal Loss via NR2A Mediated Prosurvival Pathways. Front Pharmacol 2019; 10:297. [PMID: 31024297 PMCID: PMC6461025 DOI: 10.3389/fphar.2019.00297] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 03/11/2019] [Indexed: 12/27/2022] Open
Abstract
Stroke is the significant cause of human mortality and sufferings depending upon race and demographic location. Melatonin is a potent antioxidant that exerts protective effects in differential experimental stroke models. Several mechanisms have been previously suggested for the neuroprotective effects of melatonin in ischemic brain injury. The aim of this study is to investigate whether melatonin treatment affects the glutamate N-methyl-D-aspartate (NMDA) and alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid (AMPA) receptor signaling in cerebral cortex and striatum 24 h after permanent middle cerebral artery occlusion (MCAO). Melatonin (5 mg/kg) attenuated ischemia-induced down regulation of NMDA receptor 2 (NR2a), postsynaptic density-95 (PSD95) and increases NR2a/PSD95 complex association, which further activates the pro-survival PI3K/Akt/GSK3β pathway with mitigated collapsin response mediator protein 2 (CRMP2) phosphorylation. Furthermore, melatonin increases the expression of γ-enolase, a neurotrophic factor in ischemic cortex and striatum, and preserve the expression of presynaptic (synaptophysin and SNAP25) and postsynaptic (p-GluR1845) protein. Our study demonstrated a novel neuroprotective mechanism for melatonin in ischemic brain injury which could be a promising neuroprotective agent for the treatment of ischemic stroke.
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Affiliation(s)
- Fawad Ali Shah
- State Key Laboratory of Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China.,Riphah Institute of Pharmaceutical Sciences, Riphah International University Islamabad, Islamabad, Pakistan
| | - Gongping Liu
- Key Laboratory of Ministry of Education of China and Hubei Province for Neurological Disorders, Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Lina T Al Kury
- College of Natural and Health Sciences, Zayed University, Abu Dhabi, United Arab Emirates
| | - Alam Zeb
- Riphah Institute of Pharmaceutical Sciences, Riphah International University Islamabad, Islamabad, Pakistan
| | - Muzaffar Abbas
- Department of Pharmacy, Capital University of Science and Technology, Islamabad, Pakistan
| | - Tao Li
- Department of Forensic Medicine, School of Medicine, Xi'an Jiaotong University, Xi'an, China
| | - Xifei Yang
- Centre for Addiction and Mental Health, Campbell Research Institute, Toronto, ON, Canada
| | - Fang Liu
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada.,Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Yuhua Jiang
- Cancer Centre, The Second Hospital of Shandong University, Jinan, China
| | - Shupeng Li
- State Key Laboratory of Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada.,Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Center for Disease Control and Prevention, Shenzhen, China
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40
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Jeon J, Oh MA, Cho W, Yoon SH, Kim JY, Chung TD. Robust Induced Presynapse on Artificial Substrates as a Neural Interfacing Method. ACS APPLIED MATERIALS & INTERFACES 2019; 11:7764-7773. [PMID: 30707832 DOI: 10.1021/acsami.8b20405] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Over the recent years, the development of neural interface systems has stuck to using electrical cues to stimulate neurons and read out neural signals, although neurons relay signals via chemical release and recognition at synapses. In addition, conventional neural interfaces are vulnerable to cell migration and glial encapsulation due to the absence of connection anchoring the neuron into the device unlike synapses, which are firmly sustained by protein bonding. To close this discrepancy, we conducted an intensive investigation into the induced synapse interface by employing engineered synaptic proteins from a neural interface perspective. The strong potential of induced synaptic differentiation as an emerging neural interfacing technique is demonstrated by exploring its structural features, chemical release kinetics, robustness, and scalability to the brain tissue. We show that the exocytosis kinetics of induced synapses is similar to that of endogenous synapses. Moreover, induced synapses show remarkable stability, despite cell migration and growth. The synapse-inducing technique has broad applications to cultured hippocampal and cortex tissues and suggests a promising method to integrate neural circuits with digital elements.
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Affiliation(s)
- Joohee Jeon
- Department of Chemistry , Seoul National University , Seoul 08826 , Republic of Korea
| | - Min-Ah Oh
- Department of Chemistry , Seoul National University , Seoul 08826 , Republic of Korea
| | - Wonkyung Cho
- Department of Chemistry , Seoul National University , Seoul 08826 , Republic of Korea
| | - Sun-Heui Yoon
- Department of Chemistry , Seoul National University , Seoul 08826 , Republic of Korea
| | - Ji Yong Kim
- Department of Chemistry , Seoul National University , Seoul 08826 , Republic of Korea
| | - Taek Dong Chung
- Department of Chemistry , Seoul National University , Seoul 08826 , Republic of Korea
- Advanced Institutes of Convergence Technology , Suwon-Si , Gyeonggi-do 16229 , Republic of Korea
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41
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Lazo-Gomez R, Velázquez GDLLG, Mireles-Jacobo D, Sotomayor-Sobrino MA. Mechanisms of neurobehavioral abnormalities in multiple sclerosis: Contributions from neural and immune components. Clin Neurophysiol Pract 2019; 4:39-46. [PMID: 30911699 PMCID: PMC6416523 DOI: 10.1016/j.cnp.2019.01.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 12/21/2018] [Accepted: 01/10/2019] [Indexed: 12/14/2022] Open
Abstract
Multiple sclerosis-related neurobehavioral abnormalities are one of the main components of disability in this disease. The same pathological processes that explain demyelination periods and neurodegeneration also allow the comprehension of neurobehavioral abnormalities. Inflammation in the central nervous system caused by cells of the immune system, especially lymphocytes, and by resident cells, such as astrocytes and microglia, directly modulate neurotransmission and synaptic physiology, resulting in behavioral changes (such as sickness behavior) and amplifying the degenerative mechanisms that occur in multiple sclerosis. In addition, neuronal death caused by glutamate-mediated excitotoxicity, alterations in GABAergic, serotonergic, and dopaminergic neurotransmission, and the mechanisms of axon damage are of foremost importance to explain the reduction in brain volume and the associated cognitive decline. Neuroinflammation and neurodegeneration are not isolated phenomena and various instances of interaction between them have been described. This presents attractive targets for the development of therapeutic strategies for this neglected component of multiple sclerosis related disability.
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Affiliation(s)
- Rafael Lazo-Gomez
- Neuroscience franchise, Novartis Pharma México, Calzada de Tlalpan 1779, San Diego Churubusco, 04120 Coyoacán, CDMX, Mexico
| | | | - Diego Mireles-Jacobo
- Neuroscience franchise, Novartis Pharma México, Calzada de Tlalpan 1779, San Diego Churubusco, 04120 Coyoacán, CDMX, Mexico
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42
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Trazzi S, De Franceschi M, Fuchs C, Bastianini S, Viggiano R, Lupori L, Mazziotti R, Medici G, Lo Martire V, Ren E, Rimondini R, Zoccoli G, Bartesaghi R, Pizzorusso T, Ciani E. CDKL5 protein substitution therapy rescues neurological phenotypes of a mouse model of CDKL5 disorder. Hum Mol Genet 2019; 27:1572-1592. [PMID: 29474534 DOI: 10.1093/hmg/ddy064] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Accepted: 02/17/2018] [Indexed: 11/13/2022] Open
Abstract
Cyclin-dependent kinase like-5 (CDKL5) disorder is a rare neurodevelopmental disease caused by mutations in the CDKL5 gene. The consequent misexpression of the CDKL5 protein in the nervous system leads to a severe phenotype characterized by intellectual disability, motor impairment, visual deficits and early-onset epilepsy. No therapy is available for CDKL5 disorder. It has been reported that a protein transduction domain (TAT) is able to deliver macromolecules into cells and even into the brain when fused to a given protein. We demonstrate that TAT-CDKL5 fusion protein is efficiently internalized by target cells and retains CDKL5 activity. Intracerebroventricular infusion of TAT-CDKL5 restored hippocampal development, hippocampus-dependent memory and breathing pattern in Cdkl5-null mice. Notably, systemically administered TAT-CDKL5 protein passed the blood-brain-barrier, reached the CNS, and rescued various neuroanatomical and behavioral defects, including breathing pattern and visual responses. Our results suggest that CDKL5 protein therapy may be an effective clinical tool for the treatment of CDKL5 disorder.
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Affiliation(s)
- Stefania Trazzi
- 1Department of Biomedical and Neuromotor Sciences, University of Bologna, 40126 Bologna, Italy
| | - Marianna De Franceschi
- 1Department of Biomedical and Neuromotor Sciences, University of Bologna, 40126 Bologna, Italy
| | - Claudia Fuchs
- 1Department of Biomedical and Neuromotor Sciences, University of Bologna, 40126 Bologna, Italy
| | - Stefano Bastianini
- 1Department of Biomedical and Neuromotor Sciences, University of Bologna, 40126 Bologna, Italy
| | - Rocchina Viggiano
- 1Department of Biomedical and Neuromotor Sciences, University of Bologna, 40126 Bologna, Italy
| | - Leonardo Lupori
- BIO@SNS lab, Scuola Normale Superiore di Pisa, 56125 Pisa, Italy
| | | | - Giorgio Medici
- 1Department of Biomedical and Neuromotor Sciences, University of Bologna, 40126 Bologna, Italy
| | - Viviana Lo Martire
- 1Department of Biomedical and Neuromotor Sciences, University of Bologna, 40126 Bologna, Italy
| | - Elisa Ren
- 1Department of Biomedical and Neuromotor Sciences, University of Bologna, 40126 Bologna, Italy
| | - Roberto Rimondini
- Department of Medical and Clinical Sciences, University of Bologna, 40126 Bologna, Italy
| | - Giovanna Zoccoli
- 1Department of Biomedical and Neuromotor Sciences, University of Bologna, 40126 Bologna, Italy
| | - Renata Bartesaghi
- 1Department of Biomedical and Neuromotor Sciences, University of Bologna, 40126 Bologna, Italy
| | - Tommaso Pizzorusso
- BIO@SNS lab, Scuola Normale Superiore di Pisa, 56125 Pisa, Italy.,NEUROFARBA Department, University of Florence, 50139 Florence, Italy.,Institute of Neuroscience, CNR, 56125 Pisa, Italy
| | - Elisabetta Ciani
- 1Department of Biomedical and Neuromotor Sciences, University of Bologna, 40126 Bologna, Italy
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Koffler J, Zhu W, Qu X, Platoshyn O, Dulin JN, Brock J, Graham L, Lu P, Sakamoto J, Marsala M, Chen S, Tuszynski MH. Biomimetic 3D-printed scaffolds for spinal cord injury repair. Nat Med 2019; 25:263-269. [PMID: 30643285 DOI: 10.1038/s41591-018-0296-z] [Citation(s) in RCA: 343] [Impact Index Per Article: 68.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Accepted: 11/08/2018] [Indexed: 12/22/2022]
Abstract
Current methods for bioprinting functional tissue lack appropriate biofabrication techniques to build complex 3D microarchitectures essential for guiding cell growth and promoting tissue maturation1. 3D printing of central nervous system (CNS) structures has not been accomplished, possibly owing to the complexity of CNS architecture. Here, we report the use of a microscale continuous projection printing method (μCPP) to create a complex CNS structure for regenerative medicine applications in the spinal cord. μCPP can print 3D biomimetic hydrogel scaffolds tailored to the dimensions of the rodent spinal cord in 1.6 s and is scalable to human spinal cord sizes and lesion geometries. We tested the ability of µCPP 3D-printed scaffolds loaded with neural progenitor cells (NPCs) to support axon regeneration and form new 'neural relays' across sites of complete spinal cord injury in vivo in rodents1,2. We find that injured host axons regenerate into 3D biomimetic scaffolds and synapse onto NPCs implanted into the device and that implanted NPCs in turn extend axons out of the scaffold and into the host spinal cord below the injury to restore synaptic transmission and significantly improve functional outcomes. Thus, 3D biomimetic scaffolds offer a means of enhancing CNS regeneration through precision medicine.
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Affiliation(s)
- Jacob Koffler
- Department of Neuroscience, University of California San Diego, La Jolla, CA, USA.
| | - Wei Zhu
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA
| | - Xin Qu
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA
| | - Oleksandr Platoshyn
- Department of Anesthesiology, University of California San Diego, La Jolla, CA, USA
| | - Jennifer N Dulin
- Department of Neuroscience, University of California San Diego, La Jolla, CA, USA
| | - John Brock
- Department of Neuroscience, University of California San Diego, La Jolla, CA, USA
| | - Lori Graham
- Department of Neuroscience, University of California San Diego, La Jolla, CA, USA
| | - Paul Lu
- Department of Neuroscience, University of California San Diego, La Jolla, CA, USA
| | - Jeff Sakamoto
- Mechanical Engineering Department, University of Michigan, Ann Arbor, MI, USA
| | - Martin Marsala
- Department of Anesthesiology, University of California San Diego, La Jolla, CA, USA
| | - Shaochen Chen
- Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA.
| | - Mark H Tuszynski
- Department of Neuroscience, University of California San Diego, La Jolla, CA, USA. .,Veterans Affairs Medical Center, San Diego, CA, USA.
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Wood J, LaPalombara Z, Ahmari SE. Monoamine abnormalities in the SAPAP3 knockout model of obsessive-compulsive disorder-related behaviour. Philos Trans R Soc Lond B Biol Sci 2019; 373:rstb.2017.0023. [PMID: 29352023 DOI: 10.1098/rstb.2017.0023] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/14/2017] [Indexed: 01/05/2023] Open
Abstract
Obsessive-compulsive disorder (OCD) is a leading cause of illness-related disability, but the neural mechanisms underlying OCD symptoms are unclear. One potential mechanism of OCD pathology is monoamine dysregulation. Because of the difficulty of studying monoamine signalling in patients, animal models offer a viable alternative to understanding this aspect of OCD pathophysiology. We used HPLC to characterize post-mortem monoamine levels in lateral orbitofrontal cortex (OFC), medial OFC, medial prefrontal cortex and dorsal and ventral striatum of SAPAP-3 knockout (KO) mice, a well-validated model of compulsive-like behaviours in OCD. As predicted from previous studies, excessive grooming was significantly increased in SAPAP-3 KO mice. Overall levels of the serotonin metabolite 5-hydroxyindoleacetic acid (HIAA) and the ratio of 5HIAA/serotonin (serotonin turnover) were increased in all cortical and striatal regions examined. In addition, dihydroxyphenylacetic acid/dopamine ratio was increased in lateral OFC, and HVA/dopamine ratio was increased in lateral and medial OFC. No baseline differences in serotonin or dopamine tissue content were observed. These data provide evidence of monoaminergic dysregulation in a translational model of OCD symptoms and are consistent with aberrant cortical and striatal serotonin and dopamine release/metabolism in SAPAP-3 KO mice. These results are guiding ongoing experiments using circuit and cell-type specific manipulations of dopamine and serotonin to determine the contributions of these monoaminergic systems to compulsive behaviours, and serve here as a touchstone for an expanded discussion of these techniques for precise circuit dissection.This article is part of the discussion meeting issue 'Of mice and mental health: facilitating dialogue between basic and clinical neuroscientists'.
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Affiliation(s)
- Jesse Wood
- Department of Psychiatry, Translational Neuroscience Program, University of Pittsburgh, 450 Technology Drive, Room 227, Pittsburgh, PA 15219, USA.,Center for Neuroscience Program and Center for the Neural Basis of Cognition, University of Pittsburgh, 450 Technology Drive, Room 227, Pittsburgh, PA 15219, USA
| | - Zoe LaPalombara
- Department of Psychiatry, Translational Neuroscience Program, University of Pittsburgh, 450 Technology Drive, Room 227, Pittsburgh, PA 15219, USA.,Center for Neuroscience Program and Center for the Neural Basis of Cognition, University of Pittsburgh, 450 Technology Drive, Room 227, Pittsburgh, PA 15219, USA
| | - Susanne E Ahmari
- Department of Psychiatry, Translational Neuroscience Program, University of Pittsburgh, 450 Technology Drive, Room 227, Pittsburgh, PA 15219, USA .,Center for Neuroscience Program and Center for the Neural Basis of Cognition, University of Pittsburgh, 450 Technology Drive, Room 227, Pittsburgh, PA 15219, USA
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Abstract
Gangliosides comprise a varied family of glycosphingolipid structures bearing one or more sialic acid residues. They are found in all mammalian tissues but are most abundant in the brain, where they represent the quantitatively major class of sialoglycans. As prominent molecular determinants on cell surfaces, they function as molecular-recognition partners for diverse glycan-binding proteins ranging from bacterial toxins to endogenous cell-cell adhesion molecules. Gangliosides also regulate the activity of plasma membrane proteins, including protein tyrosine kinases, by lateral association in the same membranes in which they reside. Their roles in molecular recognition and membrane protein regulation implicate gangliosides in human physiology and pathology, including infectious diseases, diabetes, cancer, and neurodegeneration. The varied structures and biosynthetic pathways of gangliosides are presented here, along with representative examples of their biological functions in health and disease.
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Long noncoding RNA GM12371 acts as a transcriptional regulator of synapse function. Proc Natl Acad Sci U S A 2018; 115:E10197-E10205. [PMID: 30297415 PMCID: PMC6205475 DOI: 10.1073/pnas.1722587115] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Neuronal functions of long noncoding RNAs (lncRNAs) are poorly understood. Here we describe identification and function of lncRNA GM12371 in regulating synaptic transmission, synapse density, and dendritic arborization in primary hippocampal neurons. GM12371 expression is regulated by cAMP signaling and is critical for the activity regulated synaptic transmission. Importantly, GM12371 is associated with transcriptionally active chromatin and regulates expression of several genes involved in neuronal growth and development. Taken together, these results suggest that GM12371 acts as a transcriptional regulator of synapse function. Despite the growing evidence suggesting that long noncoding RNAs (lncRNAs) are critical regulators of several biological processes, their functions in the nervous system remain elusive. We have identified an lncRNA, GM12371, in hippocampal neurons that is enriched in the nucleus and necessary for synaptic communication, synapse density, synapse morphology, and dendritic tree complexity. Mechanistically, GM12371 regulates the expression of several genes involved in neuronal development and differentiation, as well as expression of specific lncRNAs and their cognate mRNA targets. Furthermore, we find that cAMP-PKA signaling up-regulates the expression of GM12371 and that its expression is essential for the activity-dependent changes in synaptic transmission in hippocampal neurons. Taken together, our data establish a key role for GM12371 in regulating synapse function.
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Liu M, Shi R, Hwang H, Han KS, Wong MH, Ren X, Lewis LD, Brown EN, Xu W. SAP102 regulates synaptic AMPAR function through a CNIH-2-dependent mechanism. J Neurophysiol 2018; 120:1578-1586. [PMID: 30067114 PMCID: PMC6230800 DOI: 10.1152/jn.00731.2017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 07/13/2018] [Accepted: 07/16/2018] [Indexed: 11/22/2022] Open
Abstract
The postsynaptic density (PSD)-95-like, disk-large (DLG) membrane-associated guanylate kinase (PSD/DLG-MAGUK) family of proteins scaffold α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPAR) complexes to the postsynaptic compartment and are postulated to orchestrate activity-dependent modulation of synaptic AMPAR functions. SAP102 is a key member of this family, present from early development, before PSD-95 and PSD-93, and throughout life. Here we investigate the role of SAP102 in synaptic transmission using a cell-restricted molecular replacement strategy, where SAP102 is expressed against the background of acute knockdown of endogenous PSD-95. We show that SAP102 rescues the decrease of AMPAR-mediated evoked excitatory postsynaptic currents (AMPAR eEPSCs) and AMPAR miniature EPSC (AMPAR mEPSC) frequency caused by acute knockdown of PSD-95. Further analysis of the mini events revealed that PSD-95-to-SAP102 replacement but not direct manipulation of PSD-95 increases the AMPAR mEPSC decay time. SAP102-mediated rescue of AMPAR eEPSCs requires AMPAR auxiliary subunit cornichon-2, whereas cornichon-2 knockdown did not affect PSD-95-mediated regulation of AMPAR eEPSC. Combining these observations, our data elucidate that PSD-95 and SAP102 differentially influence basic synaptic properties and synaptic current kinetics potentially via different AMPAR auxiliary subunits. NEW & NOTEWORTHY Synaptic scaffold proteins postsynaptic density (PSD)-95-like, disk-large (DLG) membrane-associated guanylate kinase (PSD-MAGUKs) regulate synaptic α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPAR) function. However, the functional diversity among different PSD-MAGUKs remains to be categorized. We show that distinct from PSD-95, SAP102 increase the AMPAR synaptic current decay time, and the effect of SAP102 on synaptic AMPAR function requires the AMPAR auxiliary subunit cornichon-2. Our data suggest that PSD-MAGUKs target and modulate different AMPAR complexes to exert specific experience-dependent modification of the excitatory circuit.
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Affiliation(s)
- Mingna Liu
- Picower Institute for Learning and Memory, Massachusetts Institute of Technology , Cambridge, Massachusetts
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology , Cambridge, Massachusetts
| | - Rebecca Shi
- Picower Institute for Learning and Memory, Massachusetts Institute of Technology , Cambridge, Massachusetts
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology , Cambridge, Massachusetts
- Department of Biology, Massachusetts Institute of Technology , Cambridge, Massachusetts
| | - Hongik Hwang
- Picower Institute for Learning and Memory, Massachusetts Institute of Technology , Cambridge, Massachusetts
- Department of Chemistry, Massachusetts Institute of Technology , Cambridge, Massachusetts
| | - Kyung Seok Han
- Picower Institute for Learning and Memory, Massachusetts Institute of Technology , Cambridge, Massachusetts
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology , Cambridge, Massachusetts
| | - Man Ho Wong
- Picower Institute for Learning and Memory, Massachusetts Institute of Technology , Cambridge, Massachusetts
| | - Xiaobai Ren
- Picower Institute for Learning and Memory, Massachusetts Institute of Technology , Cambridge, Massachusetts
| | - Laura D Lewis
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology , Cambridge, Massachusetts
- MIT-Harvard Division of Health Science and Technology, Massachusetts Institute of Technology , Cambridge, Massachusetts
| | - Emery N Brown
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology , Cambridge, Massachusetts
- MIT-Harvard Division of Health Science and Technology, Massachusetts Institute of Technology , Cambridge, Massachusetts
| | - Weifeng Xu
- Picower Institute for Learning and Memory, Massachusetts Institute of Technology , Cambridge, Massachusetts
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology , Cambridge, Massachusetts
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Moretto E, Passafaro M. Recent Findings on AMPA Receptor Recycling. Front Cell Neurosci 2018; 12:286. [PMID: 30233324 PMCID: PMC6129582 DOI: 10.3389/fncel.2018.00286] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 08/10/2018] [Indexed: 02/04/2023] Open
Abstract
α-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors (AMPA-Rs) are tetrameric protein complexes that mediate most of the fast-excitatory transmission in response to the neurotransmitter glutamate in neurons. The abundance of AMPA-Rs at the surface of excitatory synapses establishes the strength of the response to glutamate. It is thus evident that neurons need to tightly regulate this feature, particularly in the context of all synaptic plasticity events, which are considered the biological correlates of higher cognitive functions such as learning and memory. AMPA-R levels at the synapse are regulated by insertion of newly synthesized receptors, lateral diffusion on the plasma membrane and endosomal cycling. The latter is likely the most important especially for synaptic plasticity. This process starts with the endocytosis of the receptor from the cell surface and is followed by either degradation, if the receptor is directed to the lysosomal compartment, or reinsertion at the cell surface through a specialized endosomal compartment called recycling endosomes. Although the basic steps of this process have been discovered, the details and participation of additional regulatory proteins are still being discovered. In this review article, we describe the most recent findings shedding light on this crucial mechanism of synaptic regulation.
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Affiliation(s)
- Edoardo Moretto
- Institute of Neuroscience, Consiglio Nazionale delle Ricerche (CNR), Milan, Italy
| | - Maria Passafaro
- Institute of Neuroscience, Consiglio Nazionale delle Ricerche (CNR), Milan, Italy
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Soler J, Fañanás L, Parellada M, Krebs MO, Rouleau GA, Fatjó-Vilas M. Genetic variability in scaffolding proteins and risk for schizophrenia and autism-spectrum disorders: a systematic review. J Psychiatry Neurosci 2018; 43:223-244. [PMID: 29947605 PMCID: PMC6019351 DOI: 10.1503/jpn.170066] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 10/18/2017] [Accepted: 11/13/2017] [Indexed: 12/13/2022] Open
Abstract
Scaffolding proteins represent an evolutionary solution to controlling the specificity of information transfer in intracellular networks. They are highly concentrated in complexes located in specific subcellular locations. One of these complexes is the postsynaptic density of the excitatory synapses. There, scaffolding proteins regulate various processes related to synaptic plasticity, such as glutamate receptor trafficking and signalling, and dendritic structure and function. Most scaffolding proteins can be grouped into 4 main families: discs large (DLG), discs-large-associated protein (DLGAP), Shank and Homer. Owing to the importance of scaffolding proteins in postsynaptic density architecture, it is not surprising that variants in the genes that code for these proteins have been associated with neuropsychiatric diagnoses, including schizophrenia and autism-spectrum disorders. Such evidence, together with the clinical, neurobiological and genetic overlap described between schizophrenia and autism-spectrum disorders, suggest that alteration of scaffolding protein dynamics could be part of the pathophysiology of both. However, despite the potential importance of scaffolding proteins in these psychiatric conditions, no systematic review has integrated the genetic and molecular data from studies conducted in the last decade. This review has the following goals: to systematically analyze the literature in which common and/or rare genetic variants (single nucleotide polymorphisms, single nucleotide variants and copy number variants) in the scaffolding family genes are associated with the risk for either schizophrenia or autism-spectrum disorders; to explore the implications of the reported genetic variants for gene expression and/or protein function; and to discuss the relationship of these genetic variants to the shared genetic, clinical and cognitive traits of schizophrenia and autism-spectrum disorders.
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Affiliation(s)
- Jordi Soler
- From the Secció Zoologia i Antropologia Biològica, Dept Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Universitat de Barcelona, Institut de Biomedicina de la Universitat de Barcelona (IBUB), Spain (Soler, Fañanás, Fatjó-Vilas); the Instituto de Salud Carlos III, Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain (Soler, Fañanás, Parellada, Fatjó-Vilas); Servicio de Psiquiatría del Niño y del Adolescente, Hospital General Universitario Gregorio Marañón, Madrid, Spain, Instituto de Investigación Sanitaria del Hospital Gregorio Marañón (IiSGM), Departamento de Psiquiatría, Facultad de Medicina, Universidad Complutense, Madrid, Spain (Parellada); the Centre Hospitalier Sainte-Anne, Service Hospitalo-Universitaire, Faculté de Médecine Paris Descartes, Paris, France (Krebs); the Université Paris Descartes, Inserm Centre de Psychiatrie et Neurosciences, Laboratoire de Physiopathologie des Maladies Psychiatriques, Paris, France (Krebs); the CNRS, GDR 3557, Institut de Psychiatrie, Paris, France (Krebs); the Montreal Neurological Institute and Hospital, Department of Neurology and Neurosurgery, McGill University, Montreal, QC (Rouleau); and the FIDMAG Germanes Hospitalàries Research Foundation, Barcelona, Spain (Fatjó-Vilas)
| | - Lourdes Fañanás
- From the Secció Zoologia i Antropologia Biològica, Dept Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Universitat de Barcelona, Institut de Biomedicina de la Universitat de Barcelona (IBUB), Spain (Soler, Fañanás, Fatjó-Vilas); the Instituto de Salud Carlos III, Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain (Soler, Fañanás, Parellada, Fatjó-Vilas); Servicio de Psiquiatría del Niño y del Adolescente, Hospital General Universitario Gregorio Marañón, Madrid, Spain, Instituto de Investigación Sanitaria del Hospital Gregorio Marañón (IiSGM), Departamento de Psiquiatría, Facultad de Medicina, Universidad Complutense, Madrid, Spain (Parellada); the Centre Hospitalier Sainte-Anne, Service Hospitalo-Universitaire, Faculté de Médecine Paris Descartes, Paris, France (Krebs); the Université Paris Descartes, Inserm Centre de Psychiatrie et Neurosciences, Laboratoire de Physiopathologie des Maladies Psychiatriques, Paris, France (Krebs); the CNRS, GDR 3557, Institut de Psychiatrie, Paris, France (Krebs); the Montreal Neurological Institute and Hospital, Department of Neurology and Neurosurgery, McGill University, Montreal, QC (Rouleau); and the FIDMAG Germanes Hospitalàries Research Foundation, Barcelona, Spain (Fatjó-Vilas)
| | - Mara Parellada
- From the Secció Zoologia i Antropologia Biològica, Dept Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Universitat de Barcelona, Institut de Biomedicina de la Universitat de Barcelona (IBUB), Spain (Soler, Fañanás, Fatjó-Vilas); the Instituto de Salud Carlos III, Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain (Soler, Fañanás, Parellada, Fatjó-Vilas); Servicio de Psiquiatría del Niño y del Adolescente, Hospital General Universitario Gregorio Marañón, Madrid, Spain, Instituto de Investigación Sanitaria del Hospital Gregorio Marañón (IiSGM), Departamento de Psiquiatría, Facultad de Medicina, Universidad Complutense, Madrid, Spain (Parellada); the Centre Hospitalier Sainte-Anne, Service Hospitalo-Universitaire, Faculté de Médecine Paris Descartes, Paris, France (Krebs); the Université Paris Descartes, Inserm Centre de Psychiatrie et Neurosciences, Laboratoire de Physiopathologie des Maladies Psychiatriques, Paris, France (Krebs); the CNRS, GDR 3557, Institut de Psychiatrie, Paris, France (Krebs); the Montreal Neurological Institute and Hospital, Department of Neurology and Neurosurgery, McGill University, Montreal, QC (Rouleau); and the FIDMAG Germanes Hospitalàries Research Foundation, Barcelona, Spain (Fatjó-Vilas)
| | - Marie-Odile Krebs
- From the Secció Zoologia i Antropologia Biològica, Dept Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Universitat de Barcelona, Institut de Biomedicina de la Universitat de Barcelona (IBUB), Spain (Soler, Fañanás, Fatjó-Vilas); the Instituto de Salud Carlos III, Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain (Soler, Fañanás, Parellada, Fatjó-Vilas); Servicio de Psiquiatría del Niño y del Adolescente, Hospital General Universitario Gregorio Marañón, Madrid, Spain, Instituto de Investigación Sanitaria del Hospital Gregorio Marañón (IiSGM), Departamento de Psiquiatría, Facultad de Medicina, Universidad Complutense, Madrid, Spain (Parellada); the Centre Hospitalier Sainte-Anne, Service Hospitalo-Universitaire, Faculté de Médecine Paris Descartes, Paris, France (Krebs); the Université Paris Descartes, Inserm Centre de Psychiatrie et Neurosciences, Laboratoire de Physiopathologie des Maladies Psychiatriques, Paris, France (Krebs); the CNRS, GDR 3557, Institut de Psychiatrie, Paris, France (Krebs); the Montreal Neurological Institute and Hospital, Department of Neurology and Neurosurgery, McGill University, Montreal, QC (Rouleau); and the FIDMAG Germanes Hospitalàries Research Foundation, Barcelona, Spain (Fatjó-Vilas)
| | - Guy A Rouleau
- From the Secció Zoologia i Antropologia Biològica, Dept Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Universitat de Barcelona, Institut de Biomedicina de la Universitat de Barcelona (IBUB), Spain (Soler, Fañanás, Fatjó-Vilas); the Instituto de Salud Carlos III, Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain (Soler, Fañanás, Parellada, Fatjó-Vilas); Servicio de Psiquiatría del Niño y del Adolescente, Hospital General Universitario Gregorio Marañón, Madrid, Spain, Instituto de Investigación Sanitaria del Hospital Gregorio Marañón (IiSGM), Departamento de Psiquiatría, Facultad de Medicina, Universidad Complutense, Madrid, Spain (Parellada); the Centre Hospitalier Sainte-Anne, Service Hospitalo-Universitaire, Faculté de Médecine Paris Descartes, Paris, France (Krebs); the Université Paris Descartes, Inserm Centre de Psychiatrie et Neurosciences, Laboratoire de Physiopathologie des Maladies Psychiatriques, Paris, France (Krebs); the CNRS, GDR 3557, Institut de Psychiatrie, Paris, France (Krebs); the Montreal Neurological Institute and Hospital, Department of Neurology and Neurosurgery, McGill University, Montreal, QC (Rouleau); and the FIDMAG Germanes Hospitalàries Research Foundation, Barcelona, Spain (Fatjó-Vilas)
| | - Mar Fatjó-Vilas
- From the Secció Zoologia i Antropologia Biològica, Dept Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Universitat de Barcelona, Institut de Biomedicina de la Universitat de Barcelona (IBUB), Spain (Soler, Fañanás, Fatjó-Vilas); the Instituto de Salud Carlos III, Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain (Soler, Fañanás, Parellada, Fatjó-Vilas); Servicio de Psiquiatría del Niño y del Adolescente, Hospital General Universitario Gregorio Marañón, Madrid, Spain, Instituto de Investigación Sanitaria del Hospital Gregorio Marañón (IiSGM), Departamento de Psiquiatría, Facultad de Medicina, Universidad Complutense, Madrid, Spain (Parellada); the Centre Hospitalier Sainte-Anne, Service Hospitalo-Universitaire, Faculté de Médecine Paris Descartes, Paris, France (Krebs); the Université Paris Descartes, Inserm Centre de Psychiatrie et Neurosciences, Laboratoire de Physiopathologie des Maladies Psychiatriques, Paris, France (Krebs); the CNRS, GDR 3557, Institut de Psychiatrie, Paris, France (Krebs); the Montreal Neurological Institute and Hospital, Department of Neurology and Neurosurgery, McGill University, Montreal, QC (Rouleau); and the FIDMAG Germanes Hospitalàries Research Foundation, Barcelona, Spain (Fatjó-Vilas)
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50
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Bai Y, Qiu S, Li Y, Li Y, Zhong W, Shi M, Zhu X, Jiang H, Yu Y, Cheng Y, Liu Y. Genetic association between SHANK2 polymorphisms and susceptibility to autism spectrum disorder. IUBMB Life 2018; 70:763-776. [PMID: 29934968 DOI: 10.1002/iub.1876] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 05/01/2018] [Indexed: 11/10/2022]
Abstract
Autism spectrum disorder (ASD), as one of early-onset neurodevelopmental disorders, is characterized by the following symptoms, including repetitive and stereotyped behaviors, impairments in social interaction, and dysfunctions in communication. ASD afflicts ∼1.5% of children aged 8 years in America and ∼4.5‰ of children aged 0-6 years in China. Existing studies suggest that SH3 and multiple ankyrin repeat domains protein 2 (SHANK2) is implicated in ASD. However, associations between SNPs in SHANK2 introns and ASD risk have been less investigated. In this study, on the basis of case-control study (226 cases and 239 controls), we selected nine SNPs (rs76717360, rs11236697, rs74336682, rs77950809, rs17428526, rs35459123, rs75357229, rs61887413, and rs77716438) in SHANK2 introns to investigate genetic associations between SHANK2 polymorphisms and susceptibility to ASD using improved multiple ligase detection reaction (iMLDR). We identified that the polymorphism of rs76717360 was associated with risk of ASD in Chinese population; the haplotype of rs11236697 C (T) or rs74336682 G (A) increased ASD risk; and haplotypes with ≥ five SNPs containing rs11236697 and rs74336682 were associated with risk of ASD. Our results indicate SHANK2 is a susceptibility gene for ASD in Chinese children. © 2018 IUBMB Life, 70(8):763-776, 2018.
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Affiliation(s)
- Ye Bai
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, Jilin, China
| | - Shuang Qiu
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, Jilin, China
| | - Yan Li
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, Jilin, China
| | - Yong Li
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, Jilin, China
| | - Weijing Zhong
- Chunguang Rehabilitation Hospital, Changchun, Jilin, China
| | - Meijuan Shi
- Chunguang Rehabilitation Hospital, Changchun, Jilin, China
| | - Xiaojuan Zhu
- The Key Laboratory of Molecular Epigenetics of Ministry of Education, Institute of Cytology and Genetics, Northeast Normal University, Changchun, Jilin, China
| | - Huiyi Jiang
- The Second Department of Pediatrics, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Yaqin Yu
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, Jilin, China
| | - Yi Cheng
- The Cardiovascular Center, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Yawen Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, Jilin, China
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