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Selles MC, Oliveira MM. The Oxytocin Puzzle: Unlocking Alzheimer's Disease. J Alzheimers Dis 2024; 97:1101-1104. [PMID: 38189754 DOI: 10.3233/jad-231127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
Alzheimer's disease is a multi-factorial disease that disrupts many aspects of human behavior. In this comment, we highlight the work by Koulousakis et al. published in a recent issue of the Journal of Alzheimer's Disease. In this study, the authors tested the therapeutic potential of the neuropeptide oxytocin in a pre-clinical model of Alzheimer's disease and found positive behavioral outcomes on memory assessments. We discuss these findings in the context of oxytocin research in the field of Alzheimer's disease and the literature regarding oxytocin-based therapeutics, including administration protocols and potential underlying cellular and molecular mechanisms.
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Affiliation(s)
- Maria Clara Selles
- Neuroscience Institute, New York University School of Medicine, New York, NY, USA
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Selles MC, Fortuna JT, de Faria YP, Siqueira LD, Lima-Filho R, Longo BM, Froemke RC, Chao MV, Ferreira ST. Oxytocin attenuates microglial activation and restores social and non-social memory in APP/PS1 Alzheimer model mice. iScience 2023; 26:106545. [PMID: 37128547 PMCID: PMC10148027 DOI: 10.1016/j.isci.2023.106545] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 03/02/2023] [Accepted: 03/24/2023] [Indexed: 04/03/2023] Open
Abstract
Alzheimer's disease (AD) is characterized by neurodegeneration, memory loss, and social withdrawal. Brain inflammation has emerged as a key pathogenic mechanism in AD. We hypothesized that oxytocin, a pro-social hypothalamic neuropeptide with anti-inflammatory properties, could have therapeutic actions in AD. Here, we investigated oxytocin expression in experimental models of AD, and evaluated the therapeutic potential of treatment with oxytocin. Amyloid-β peptide oligomers (AβOs) reduced oxytocin expression in vitro and in vivo, and treatment with oxytocin prevented microglial activation induced by AβOs in purified microglial cultures. Treatment of aged APP/PS1 mice, a mouse model of AD, with intranasal oxytocin attenuated microglial activation and favored deposition of Aβ in dense core plaques, a potentially neuroprotective mechanism. Remarkably, treatment with oxytocin alleviated social and non-social memory impairments in aged APP/PS1 mice. Our findings point to oxytocin as a potential therapeutic target to reduce brain inflammation and correct memory deficits in AD.
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Affiliation(s)
- Maria Clara Selles
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
- Skirball Institute for Biomolecular Medicine, New York University Grossman School of Medicine, New York, NY, USA
| | - Juliana T.S. Fortuna
- Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Yasmin P.R. de Faria
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Luciana Domett Siqueira
- Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ricardo Lima-Filho
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Beatriz M. Longo
- Laboratório de Neurofisiologia, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - Robert C. Froemke
- Skirball Institute for Biomolecular Medicine, New York University Grossman School of Medicine, New York, NY, USA
- Neuroscience Institute and Department of Otolaryngology, New York University Grossman School of Medicine, New York, NY, USA
- Corresponding author
| | - Moses V. Chao
- Skirball Institute for Biomolecular Medicine, New York University Grossman School of Medicine, New York, NY, USA
- Corresponding author
| | - Sergio T. Ferreira
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
- D’Or Institute for Research and Education, Rio de Janeiro, Rio de Janeiro, Brazil
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
- Corresponding author
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Selles MC, Fortuna JTS, Cercato MC, Santos LE, Domett L, Bitencourt ALB, Carraro MF, Souza AS, Janickova H, Azevedo CV, Campos HC, de Souza JM, Alves-Leon S, Prado VF, Prado MAM, Epstein AL, Salvetti A, Longo BM, Arancio O, Klein WL, Sebollela A, De Felice FG, Jerusalinsky DA, Ferreira ST. AAV-mediated neuronal expression of an scFv antibody selective for Aβ oligomers protects synapses and rescues memory in Alzheimer models. Mol Ther 2023; 31:409-419. [PMID: 36369741 PMCID: PMC9931599 DOI: 10.1016/j.ymthe.2022.11.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 10/25/2022] [Accepted: 11/08/2022] [Indexed: 11/13/2022] Open
Abstract
The accumulation of soluble oligomers of the amyloid-β peptide (AβOs) in the brain has been implicated in synapse failure and memory impairment in Alzheimer's disease. Here, we initially show that treatment with NUsc1, a single-chain variable-fragment antibody (scFv) that selectively targets a subpopulation of AβOs and shows minimal reactivity to Aβ monomers and fibrils, prevents the inhibition of long-term potentiation in hippocampal slices and memory impairment induced by AβOs in mice. As a therapeutic approach for intracerebral antibody delivery, we developed an adeno-associated virus vector to drive neuronal expression of NUsc1 (AAV-NUsc1) within the brain. Transduction by AAV-NUsc1 induced NUsc1 expression and secretion in adult human brain slices and inhibited AβO binding to neurons and AβO-induced loss of dendritic spines in primary rat hippocampal cultures. Treatment of mice with AAV-NUsc1 prevented memory impairment induced by AβOs and, remarkably, reversed memory deficits in aged APPswe/PS1ΔE9 Alzheimer's disease model mice. These results support the feasibility of immunotherapy using viral vector-mediated gene delivery of NUsc1 or other AβO-specific single-chain antibodies as a potential therapeutic approach in Alzheimer's disease.
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Affiliation(s)
- Maria Clara Selles
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; Skirball Institute for Biomolecular Medicine, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Juliana T S Fortuna
- Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro 21941-590, Brazil
| | - Magali C Cercato
- Laboratorio de Neuroplasticidad y Neurotoxinas, Instituto de Biología Celular y Neurociencia "Profesor Eduardo De Robertis," Universidad de Buenos Aires/CONICET, Buenos Aires 1121, Argentina
| | - Luis Eduardo Santos
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
| | - Luciana Domett
- Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro 21941-590, Brazil
| | - Andre L B Bitencourt
- Department of Biochemistry and Immunology, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto 14049-900, Brazil
| | - Mariane Favero Carraro
- Department of Biochemistry and Immunology, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto 14049-900, Brazil
| | - Amanda S Souza
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
| | - Helena Janickova
- Department of Physiology & Pharmacology and Department of Anatomy & Cell Biology, Robarts Research Institute, The University of Western Ontario, London, ON N6A 5K8, Canada
| | - Caroline Vieira Azevedo
- Laboratório de Neurofisiologia, Departamento de Fisiologia, Universidade Federal de São Paulo, São Paulo 05508-000, Brazil
| | - Henrique Correia Campos
- Laboratório de Neurofisiologia, Departamento de Fisiologia, Universidade Federal de São Paulo, São Paulo 05508-000, Brazil
| | - Jorge M de Souza
- Division of Neurosurgery and Division of Neurology/Epilepsy Program, Clementino Fraga Filho University Hospital, Rio de Janeiro 21941-617, Brazil
| | - Soniza Alves-Leon
- Division of Neurosurgery and Division of Neurology/Epilepsy Program, Clementino Fraga Filho University Hospital, Rio de Janeiro 21941-617, Brazil
| | - Vania F Prado
- Department of Physiology & Pharmacology and Department of Anatomy & Cell Biology, Robarts Research Institute, The University of Western Ontario, London, ON N6A 5K8, Canada
| | - Marco A M Prado
- Department of Physiology & Pharmacology and Department of Anatomy & Cell Biology, Robarts Research Institute, The University of Western Ontario, London, ON N6A 5K8, Canada
| | - Alberto L Epstein
- UMR INSERM U1179-UVSQ, Université de Versailles Saint Quentin en Yvelines, 78180 Montigny-le-Bretonneux, France
| | - Anna Salvetti
- CIRI - Centre International de Recherche en Infectiologie, University of Lyon, Université Claude Bernard Lyon 1, INSERM, U1111, CNRS, UMR5308, ENS Lyon, 69007 Lyon, France
| | - Beatriz Monteiro Longo
- Laboratório de Neurofisiologia, Departamento de Fisiologia, Universidade Federal de São Paulo, São Paulo 05508-000, Brazil
| | - Ottavio Arancio
- Department of Pathology and Cell Biology and Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Columbia University, New York, NY 10032, USA
| | - William L Klein
- Department of Neurobiology, Northwestern University, Evanston, IL 60201, USA
| | - Adriano Sebollela
- Department of Biochemistry and Immunology, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto 14049-900, Brazil
| | - Fernanda G De Felice
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; Centre for Neuroscience Studies, Department of Molecular and Biomedical Sciences & Department of Psychiatry, Queen's University, Kingston, ON K7L 3N6, Canada; D'Or Institute for Research and Education, Rio de Janeiro 22281-100, Brazil
| | - Diana A Jerusalinsky
- Laboratorio de Neuroplasticidad y Neurotoxinas, Instituto de Biología Celular y Neurociencia "Profesor Eduardo De Robertis," Universidad de Buenos Aires/CONICET, Buenos Aires 1121, Argentina
| | - Sergio T Ferreira
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; D'Or Institute for Research and Education, Rio de Janeiro 22281-100, Brazil; Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro 21941-170, Brazil.
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4
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Selles MC, Fortuna J, Cercato MC, Santos LE, Domett L, Bitencourt AL, Souza AS, Janickova H, Souza JM, Alves‐Leon S, Prado V, Prado MA, Epstein A, Salvetti A, Sebollela A, Arancio O, Klein WL, De Felice FG, Jerusalinsky DA, Ferreira ST. Neuronal expression of a single‐chain variable fragment antibody against Aβ oligomers protects synapses and rescues memory in Alzheimer models. Alzheimers Dement 2020. [DOI: 10.1002/alz.041530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | | | | | - Luis E Santos
- Federal University of Rio de Janeiro Rio de Janeiro Brazil
| | - Luciana Domett
- Federal University of Rio de Janeiro Rio de Janeiro Brazil
| | | | | | | | - Jorge M. Souza
- Clementino Fraga Filho University Hospital Rio de Janeiro Brazil
| | | | - Vania Prado
- Western University Robarts Research Institute London ON Canada
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Selles MC, Fortuna JTS, Zappa-Villar MF, de Faria YPR, Souza AS, Suemoto CK, Leite REP, Rodriguez RD, Grinberg LT, Reggiani PC, Ferreira ST. Adenovirus-Mediated Transduction of Insulin-Like Growth Factor 1 Protects Hippocampal Neurons from the Toxicity of Aβ Oligomers and Prevents Memory Loss in an Alzheimer Mouse Model. Mol Neurobiol 2019; 57:1473-1483. [PMID: 31760608 DOI: 10.1007/s12035-019-01827-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 10/30/2019] [Indexed: 01/28/2023]
Abstract
Alzheimer's disease (AD) is the main cause of dementia in the elderly. Although activation of brain insulin signaling has been shown to be neuroprotective, to preserve memory in AD models, and appears beneficial in patients, the role of insulin-like growth factor 1 (IGF1) remains incompletely understood. We found reduced active/inactive IGF1 ratio and increased IGF1R expression in postmortem hippocampal tissue from AD patients, suggesting impaired brain IGF1 signaling in AD. Active/inactive IGF-1 ratio was also reduced in the brains of mouse models of AD. We next investigated the possible protective role of IGF1 in AD models. We used a recombinant adenoviral vector, RAd-IGF1, to drive the expression of IGF1 in primary hippocampal neuronal cultures prior to exposure to AβOs, toxins that accumulate in AD brains and have been implicated in early synapse dysfunction and memory impairment. Cultures transduced with RAd-IGF1 showed decreased binding of AβOs to neurons and were protected against AβO-induced neuronal oxidative stress and loss of dendritic spines. Significantly, in vivo transduction with RAd-IGF1 blocked memory impairment caused by intracerebroventricular (i.c.v.) infusion of AβOs in mice. Our results demonstrate altered active IGF1 and IGF1R levels in AD hippocampi, and suggest that boosting brain expression of IGF1 may comprise an approach to prevent neuronal damage and memory loss in AD.
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Affiliation(s)
- Maria Clara Selles
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Juliana T S Fortuna
- Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Maria F Zappa-Villar
- Institute of Biochemical Research (INIBIOLP) - National Scientific and Technical Research Council (CONICET) - School of Medical Sciences, National University of La Plata (UNLP), La Plata, Argentina
| | - Yasmin P R de Faria
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Amanda S Souza
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Claudia K Suemoto
- Discipline of Geriatrics, University of São Paulo Medical School, Sao Paulo, Brazil.,LIM-22, Department of Pathology, University of São Paulo Medical School, Sao Paulo, Brazil
| | - Renata E P Leite
- Discipline of Geriatrics, University of São Paulo Medical School, Sao Paulo, Brazil.,LIM-22, Department of Pathology, University of São Paulo Medical School, Sao Paulo, Brazil
| | - Roberta D Rodriguez
- LIM-22, Department of Pathology, University of São Paulo Medical School, Sao Paulo, Brazil.,Department of Neurology, University of São Paulo Medical School, Sao Paulo, Brazil
| | - Lea T Grinberg
- LIM-22, Department of Pathology, University of São Paulo Medical School, Sao Paulo, Brazil.,Department of Neurology, Memory and Aging Center, University of California San Francisco, San Francisco, CA, USA
| | - Paula C Reggiani
- Institute of Biochemical Research (INIBIOLP) - National Scientific and Technical Research Council (CONICET) - School of Medical Sciences, National University of La Plata (UNLP), La Plata, Argentina
| | - Sergio T Ferreira
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil. .,Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho 373, Room C-31, Cidade Universitária, Rio de Janeiro, RJ, 21941-590, Brazil.
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Roig-Puiggros S, Vigouroux RJ, Beckman D, Bocai NI, Chiou B, Davimes J, Gomez G, Grassi S, Hoque A, Karikari TK, Kiffer F, Lopez M, Lunghi G, Mazengenya P, Meier S, Olguín-Albuerne M, Oliveira MM, Paraíso-Luna J, Pradhan J, Radiske A, Ramos-Hryb AB, Ribeiro MC, Schellino R, Selles MC, Singh S, Theotokis P, Chédotal A. Construction and reconstruction of brain circuits: normal and pathological axon guidance. J Neurochem 2019; 153:10-32. [PMID: 31630412 DOI: 10.1111/jnc.14900] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 10/14/2019] [Accepted: 10/17/2019] [Indexed: 02/06/2023]
Abstract
Perception of our environment entirely depends on the close interaction between the central and peripheral nervous system. In order to communicate each other, both systems must develop in parallel and in coordination. During development, axonal projections from the CNS as well as the PNS must extend over large distances to reach their appropriate target cells. To do so, they read and follow a series of axon guidance molecules. Interestingly, while these molecules play critical roles in guiding developing axons, they have also been shown to be critical in other major neurodevelopmental processes, such as the migration of cortical progenitors. Currently, a major hurdle for brain repair after injury or neurodegeneration is the absence of axonal regeneration in the mammalian CNS. By contrasts, PNS axons can regenerate. Many hypotheses have been put forward to explain this paradox but recent studies suggest that hacking neurodevelopmental mechanisms may be the key to promote CNS regeneration. Here we provide a seminar report written by trainees attending the second Flagship school held in Alpbach, Austria in September 2018 organized by the International Society for Neurochemistry (ISN) together with the Journal of Neurochemistry (JCN). This advanced school has brought together leaders in the fields of neurodevelopment and regeneration in order to discuss major keystones and future challenges in these respective fields.
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Affiliation(s)
| | - Robin J Vigouroux
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France
| | - Danielle Beckman
- California National Primate Research Center, UC Davis, Davis, California, USA
| | - Nadia I Bocai
- Laboratory of Amyloidosis and Neurodegeneration, Fundación Instituto Leloir, Buenos Aires, Argentina.,Instituto de Investigaciones Bioquímicas de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Brian Chiou
- Department of Pediatrics, University of California - San Francisco, San Francisco, California, USA
| | - Joshua Davimes
- Faculty of Health Sciences School of Anatomical Sciences, University of the Witwatersrand, Parktown Johannesburg, South Africa
| | - Gimena Gomez
- Laboratorio de Parkinson Experimental, Instituto de Investigaciones Farmacológicas (ININFA-CONICET-UBA), Ciudad Autónoma de Buenos Aires, Argentina
| | - Sara Grassi
- Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, Italy
| | - Ashfaqul Hoque
- Metabolic Signalling Laboratory, St Vincent's Institute of Medical Research, Fitzroy, Victoria, Australia
| | - Thomas K Karikari
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden.,School of Life Sciences, University of Warwick, Coventry, UK.,Midlands Integrative Biosciences Training Partnership, University of Warwick, Coventry, UK
| | - Frederico Kiffer
- Division of Radiation Health, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA.,Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA.,Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Mary Lopez
- Institute for Stroke and Dementia Research, LMU Munich, Munich, Germany
| | - Giulia Lunghi
- Department of Medical Biotechnology and Translational Medicin, University of Milano, Segrate, Italy
| | - Pedzisai Mazengenya
- School of Anatomical Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Sonja Meier
- Queensland Brain Institute, The University of Queensland, St Lucia, Queensland, Australia
| | - Mauricio Olguín-Albuerne
- División de Neurociencias, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Mauricio M Oliveira
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Juan Paraíso-Luna
- Ramón y Cajal Institute of Health Research (IRYCIS), Department of Biochemistry and Molecular Biology and University Research Institute in Neurochemistry (IUIN), Complutense University, Madrid, Spain.,Network Center for Biomedical Research in Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Jonu Pradhan
- Faculty of Medicine, School of Biomedical Sciences, The University of Queensland, Brisbane, Queensland, Australia
| | - Andressa Radiske
- Memory Research Laboratory, Brain Institute, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Ana Belén Ramos-Hryb
- Instituto de Biología y Medicina Experimental (IBYME)-CONICET, Buenos Aires, Argentina.,Grupo de Neurociencia de Sistemas, Instituto de Fisiología y Biofísica (IFIBIO) Bernardo Houssay, Universidad de Buenos Aires, CONICET, Buenos Aires, Argentina
| | - Mayara C Ribeiro
- Department of Biology, Program in Neuroscience, Syracuse University, Syracuse, New York, USA
| | - Roberta Schellino
- Neuroscience Department "Rita Levi-Montalcini" and Neuroscience Institute Cavalieri Ottolenghi, University of Torino, Torino, Italy
| | - Maria Clara Selles
- Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Shripriya Singh
- System Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research, Lucknow, India
| | - Paschalis Theotokis
- Department of Neurology, Laboratory of Experimental Neurology and Neuroimmunology, AHEPA University Hospital, Thessaloniki, Macedonia, Greece
| | - Alain Chédotal
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France
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7
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Mendes ND, Fernandes A, Almeida GM, Santos LE, Selles MC, Lyra E Silva NM, Machado CM, Horta-Júnior JAC, Louzada PR, De Felice FG, Alves-Leon S, Marcondes J, Assirati JA, Matias CM, Klein WL, Garcia-Cairasco N, Ferreira ST, Neder L, Sebollela A. Free-floating adult human brain-derived slice cultures as a model to study the neuronal impact of Alzheimer's disease-associated Aβ oligomers. J Neurosci Methods 2018; 307:203-209. [PMID: 29859877 DOI: 10.1016/j.jneumeth.2018.05.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 05/25/2018] [Accepted: 05/28/2018] [Indexed: 11/16/2022]
Abstract
BACKGROUND Slice cultures have been prepared from several organs. With respect to the brain, advantages of slice cultures over dissociated cell cultures include maintenance of the cytoarchitecture and neuronal connectivity. Slice cultures from adult human brain have been reported and constitute a promising method to study neurological diseases. Despite this potential, few studies have characterized in detail cell survival and function along time in short-term, free-floating cultures. NEW METHOD We used tissue from adult human brain cortex from patients undergoing temporal lobectomy to prepare 200 μm-thick slices. Along the period in culture, we evaluated neuronal survival, histological modifications, and neurotransmitter release. The toxicity of Alzheimer's-associated Aβ oligomers (AβOs) to cultured slices was also analyzed. RESULTS Neurons in human brain slices remain viable and neurochemically active for at least four days in vitro, which allowed detection of binding of AβOs. We further found that slices exposed to AβOs presented elevated levels of hyperphosphorylated Tau, a hallmark of Alzheimer's disease. COMPARISON WITH EXISTING METHOD(S) Although slice cultures from adult human brain have been previously prepared, this is the first report to analyze cell viability and neuronal activity in short-term free-floating cultures as a function of days in vitro. CONCLUSIONS Once surgical tissue is available, the current protocol is easy to perform and produces functional slices from adult human brain. These slice cultures may represent a preferred model for translational studies of neurodegenerative disorders when long term culturing in not required, as in investigations on AβO neurotoxicity.
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Affiliation(s)
- Niele D Mendes
- Dept. Biochemistry and Immunology, Ribeirao Preto Medical School, University of Sao Paulo, SP, Brazil; Dept. Pathology and Forensic Medicine, Ribeirao Preto Medical School, University of Sao Paulo, SP, Brazil
| | - Artur Fernandes
- Dept. Biochemistry and Immunology, Ribeirao Preto Medical School, University of Sao Paulo, SP, Brazil; Dept. Physiology, Ribeirão Preto Medical School, University of São Paulo, SP, Brazil
| | - Glaucia M Almeida
- Dept. Biochemistry and Immunology, Ribeirao Preto Medical School, University of Sao Paulo, SP, Brazil
| | - Luis E Santos
- Institute of Medical Biochemistry, Federal University of Rio de Janeiro, RJ, Brazil
| | - Maria Clara Selles
- Institute of Medical Biochemistry, Federal University of Rio de Janeiro, RJ, Brazil
| | - N M Lyra E Silva
- Institute of Medical Biochemistry, Federal University of Rio de Janeiro, RJ, Brazil
| | - Carla M Machado
- Department of Anatomy, Institute of Biosciences, São Paulo State University, SP, Brazil
| | - José A C Horta-Júnior
- Department of Anatomy, Institute of Biosciences, São Paulo State University, SP, Brazil
| | - Paulo R Louzada
- Institute of Biomedical Sciences, Federal University of Rio de Janeiro, RJ, Brazil
| | - Fernanda G De Felice
- Institute of Medical Biochemistry, Federal University of Rio de Janeiro, RJ, Brazil; Centre for Neuroscience Studies, Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON, Canada
| | - Soniza Alves-Leon
- Hospital Universitário Clementino Fraga Filho, Federal University of Rio de Janeiro, RJ, Brazil
| | - Jorge Marcondes
- Hospital Universitário Clementino Fraga Filho, Federal University of Rio de Janeiro, RJ, Brazil
| | - João Alberto Assirati
- Ribeirão Preto Medical School Clinical Hospital, University of São Paulo, SP, Brazil
| | - Caio M Matias
- Ribeirão Preto Medical School Clinical Hospital, University of São Paulo, SP, Brazil
| | - William L Klein
- Department of Neurobiology, Northwestern University, IL, USA
| | | | - Sergio T Ferreira
- Institute of Medical Biochemistry, Federal University of Rio de Janeiro, RJ, Brazil; Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, RJ, Brazil
| | - Luciano Neder
- Dept. Pathology and Forensic Medicine, Ribeirao Preto Medical School, University of Sao Paulo, SP, Brazil; Barretos Cancer Hospital, Barretos, SP, Brazil
| | - Adriano Sebollela
- Dept. Biochemistry and Immunology, Ribeirao Preto Medical School, University of Sao Paulo, SP, Brazil.
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