1
|
Ibrahim MJ, Baiju V, Sen S, Chandran PP, Ashraf GM, Haque S, Ahmad F. Utilities of Isolated Nerve Terminals in Ex Vivo Analyses of Protein Translation in (Patho)physiological Brain States: Focus on Alzheimer's Disease. Mol Neurobiol 2024; 61:91-103. [PMID: 37582987 DOI: 10.1007/s12035-023-03562-x] [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: 06/05/2023] [Accepted: 08/07/2023] [Indexed: 08/17/2023]
Abstract
Synapses are the cellular substrates of higher-order brain functions, and their dysfunction is an early and primary pathogenic mechanism across several neurological disorders. In particular, Alzheimer's disease (AD) is categorized by prodromal structural and functional synaptic deficits, prior to the advent of classical behavioral and pathological features. Recent research has shown that the development, maintenance, and plasticity of synapses depend on localized protein translation. Synaptosomes and synaptoneurosomes are biochemically isolated synaptic terminal preparations which have long been used to examine a variety of synaptic processes ex vivo in both healthy and pathological conditions. These ex vivo preparations preserve the mRNA species and the protein translational machinery. Hence, they are excellent in organello tools for the study of alterations in mRNA levels and protein translation in neuropathologies. Evaluation of synapse-specific basal and activity-driven de novo protein translation activity can be conveniently performed in synaptosomal/synaptoneurosomal preparations from both rodent and human brain tissue samples. This review gives a quick overview of the methods for isolating synaptosomes and synaptoneurosomes before discussing the studies that have utilized these preparations to study localized synapse-specific protein translation in (patho)physiological situations, with an emphasis on AD. While the review is not an exhaustive accumulation of all the studies evaluating synaptic protein translation using the synaptosomal model, the aim is to assemble the most relevant studies that have done so. The hope is to provide a suitable research platform to aid neuroscientists to utilize the synaptosomal/synaptoneurosomal models to evaluate the molecular mechanisms of synaptic dysfunction within the specific confines of mRNA localization and protein translation research.
Collapse
Affiliation(s)
- Mohammad Jasim Ibrahim
- Department of Biotechnology, Vellore Institute of Technology, Vellore, Tamil Nadu, India, 632014
| | - Viswanath Baiju
- Department of Biotechnology, Vellore Institute of Technology, Vellore, Tamil Nadu, India, 632014
| | - Shivam Sen
- Department of Biotechnology, Vellore Institute of Technology, Vellore, Tamil Nadu, India, 632014
| | - Pranav Prathapa Chandran
- Department of Biotechnology, Vellore Institute of Technology, Vellore, Tamil Nadu, India, 632014
| | - Ghulam Md Ashraf
- University of Sharjah, College of Health Sciences, and Research Institute for Medical and Health Sciences, Department of Medical Laboratory Sciences, University City, 27272, Sharjah, United Arab Emirates.
| | - Shafiul Haque
- Research and Scientific Studies Unit, College of Nursing and Allied Health Sciences, Jazan University, 45142, Jazan, Saudi Arabia
- Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Beirut, Lebanon
- Centre of Medical and Bio-Allied Health Sciences Research, Ajman University, Ajman, United Arab Emirates
| | - Faraz Ahmad
- Department of Biotechnology, Vellore Institute of Technology, Vellore, Tamil Nadu, India, 632014.
| |
Collapse
|
2
|
Cavaliere G, Catapano A, Trinchese G, Cimmino F, Penna E, Pizzella A, Cristiano C, Lama A, Crispino M, Mollica MP. Butyrate Improves Neuroinflammation and Mitochondrial Impairment in Cerebral Cortex and Synaptic Fraction in an Animal Model of Diet-Induced Obesity. Antioxidants (Basel) 2022; 12:antiox12010004. [PMID: 36670866 PMCID: PMC9854835 DOI: 10.3390/antiox12010004] [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: 11/20/2022] [Revised: 12/08/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
Neurodegenerative diseases (NDDs) are characterized by cognitive impairment and behavioural abnormalities. The incidence of NDDs in recent years has increased globally and the pathological mechanism is not fully understood. To date, plentiful evidence has showed that metabolic alterations associated with obesity and related issues such as neuroinflammation, oxidative stress and mitochondrial dysfunction may represent an important risk factor, linking obesity and NDDs. Numerous studies have indicated a correlation between diet and brain activities. In this context, a key role is played by mitochondria located in the synaptic fraction; indeed, it has been shown that high-fat diets cause their dysfunction, affecting synaptic plasticity. In this scenario, the use of natural molecules that improve brain mitochondrial function represents an important therapeutic approach to treat NDDs. Recently, it was demonstrated that butyrate, a short-chain fatty acid is capable of counteracting obesity in an animal model, modulating mitochondrial function. The aim of this study has been to evaluate the effects of butyrate on neuroinflammatory state, oxidative stress and mitochondrial dysfunction in the brain cortex and in the synaptic fraction of a mouse model of diet-induced obesity. Our data have shown that butyrate partially reverts neuroinflammation and oxidative stress in the brain cortex and synaptic area, improving mitochondrial function and efficiency.
Collapse
Affiliation(s)
- Gina Cavaliere
- Department of Pharmaceutical Sciences, University of Perugia, 06126 Perugia, Italy
- Centro Servizi Metrologici e Tecnologici Avanzati (CeSMA), Complesso Universitario di Monte Sant’Angelo, Via Cinthia 21, 80126 Naples, Italy
| | - Angela Catapano
- Centro Servizi Metrologici e Tecnologici Avanzati (CeSMA), Complesso Universitario di Monte Sant’Angelo, Via Cinthia 21, 80126 Naples, Italy
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - Giovanna Trinchese
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - Fabiano Cimmino
- Centro Servizi Metrologici e Tecnologici Avanzati (CeSMA), Complesso Universitario di Monte Sant’Angelo, Via Cinthia 21, 80126 Naples, Italy
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - Eduardo Penna
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - Amelia Pizzella
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - Claudia Cristiano
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | - Adriano Lama
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | - Marianna Crispino
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - Maria Pina Mollica
- Centro Servizi Metrologici e Tecnologici Avanzati (CeSMA), Complesso Universitario di Monte Sant’Angelo, Via Cinthia 21, 80126 Naples, Italy
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
- Task Force on Microbiome Studies, University of Naples Federico II, 80138 Naples, Italy
- Correspondence: ; Tel.: +39-081-679-990
| |
Collapse
|
3
|
Garrick JM, Dao K, Costa LG, Marsillach J, Furlong CE. Examining the role of paraoxonase 2 in the dopaminergic system of the mouse brain. BMC Neurosci 2022; 23:52. [PMID: 36056313 PMCID: PMC9438175 DOI: 10.1186/s12868-022-00738-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 08/24/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Paraoxonase 2 (PON2) is an intracellular antioxidant enzyme located at the inner mitochondrial membrane. Previous studies have found PON2 to be an important antioxidant in a variety of cellular systems, such as the cardiovascular and renal system. Recent work has also suggested that PON2 plays an important role in the central nervous system (CNS), as decreased PON2 expression in the CNS leads to higher oxidative stress and subsequent cell toxicity. However, the precise role of PON2 in the CNS is still largely unknown, and what role it may play in specific regions of the brain remains unexamined. Dopamine metabolism generates considerable oxidative stress and antioxidant function is critical to the survival of dopaminergic neurons, providing a potential mechanism for PON2 in the dopaminergic system. METHODS In this study, we investigated the role of PON2 in the dopaminergic system of the mouse brain by comparing transcript and protein expression of dopaminergic-related genes in wildtype (WT) and PON2 deficient (PON2-def) mouse striatum, and exposing WT cultured primary neurons to dopamine receptor agonists. RESULTS We found alterations in multiple key dopaminergic genes at the transcript level, however many of these changes were not observed at the protein level. In cultured neurons, PON2 mRNA and protein were increased upon exposure to quinpirole, a dopamine receptor 2/3 (DRD2/3) agonist, but not fenoldopam, a dopamine receptor 1/5 (DRD1/5) agonist, suggesting a receptor-specific role in dopamine signaling. CONCLUSIONS Our findings suggest PON2 deficiency significantly impacts the dopaminergic system at the transcript level and may play a role in mitigating oxidative stress in this system further downstream through dopamine receptor signaling.
Collapse
Affiliation(s)
- Jacqueline M Garrick
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA.
| | - Khoi Dao
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA
| | - Lucio G Costa
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Judit Marsillach
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA
| | - Clement E Furlong
- Departments of Medicine (Div. Medical Genetics) and of Genome Sciences, University of Washington, Seattle, USA
| |
Collapse
|
4
|
Hobson BD, Kong L, Angelo MF, Lieberman OJ, Mosharov EV, Herzog E, Sulzer D, Sims PA. Subcellular and regional localization of mRNA translation in midbrain dopamine neurons. Cell Rep 2022; 38:110208. [PMID: 35021090 PMCID: PMC8844886 DOI: 10.1016/j.celrep.2021.110208] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 10/25/2021] [Accepted: 12/13/2021] [Indexed: 12/12/2022] Open
Abstract
Midbrain dopaminergic (mDA) neurons exhibit extensive dendritic and axonal arborizations, but local protein synthesis is not characterized in these neurons. Here, we investigate messenger RNA (mRNA) localization and translation in mDA neuronal axons and dendrites, both of which release dopamine (DA). Using highly sensitive ribosome-bound RNA sequencing and imaging approaches, we find no evidence for mRNA translation in mDA axons. In contrast, mDA neuronal dendrites in the substantia nigra pars reticulata (SNr) contain ribosomes and mRNAs encoding the major components of DA synthesis, release, and reuptake machinery. Surprisingly, we also observe dendritic localization of mRNAs encoding synaptic vesicle-related proteins, including those involved in exocytic fusion. Our results are consistent with a role for local translation in the regulation of DA release from dendrites, but not from axons. Our translatome data define a molecular signature of sparse mDA neurons in the SNr, including the enrichment of Atp2a3/SERCA3, an atypical ER calcium pump.
Collapse
Affiliation(s)
- Benjamin D Hobson
- Department of Systems Biology, Columbia University Irving Medical Center, New York 10032, NY, USA; Medical Scientist Training Program, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Psychiatry, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Linghao Kong
- Department of Systems Biology, Columbia University Irving Medical Center, New York 10032, NY, USA
| | - Maria Florencia Angelo
- Interdisciplinary Institute for Neuroscience, Université de Bordeaux, Bordeaux, France; Interdisciplinary Institute for Neuroscience, CNRS UMR 5297, Bordeaux, France
| | - Ori J Lieberman
- Medical Scientist Training Program, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Psychiatry, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Eugene V Mosharov
- Department of Psychiatry, Columbia University Irving Medical Center, New York, NY 10032, USA; Division of Molecular Therapeutics, New York State Psychiatric Institute, New York, NY 10032, USA
| | - Etienne Herzog
- Interdisciplinary Institute for Neuroscience, Université de Bordeaux, Bordeaux, France; Interdisciplinary Institute for Neuroscience, CNRS UMR 5297, Bordeaux, France.
| | - David Sulzer
- Department of Neurology, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Psychiatry, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Pharmacology, Columbia University Irving Medical Center, New York, NY 10032, USA; Division of Molecular Therapeutics, New York State Psychiatric Institute, New York, NY 10032, USA; Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA.
| | - Peter A Sims
- Department of Systems Biology, Columbia University Irving Medical Center, New York 10032, NY, USA; Department of Biochemistry & Molecular Biophysics, Columbia University Irving Medical Center, New York, NY 10032, USA; Sulzberger Columbia Genome Center, Columbia University Irving Medical Center, New York, NY 10032, USA; Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA.
| |
Collapse
|
5
|
The glutamatergic synapse: a complex machinery for information processing. Cogn Neurodyn 2021; 15:757-781. [PMID: 34603541 DOI: 10.1007/s11571-021-09679-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 03/04/2021] [Accepted: 04/16/2021] [Indexed: 10/21/2022] Open
Abstract
Being the most abundant synaptic type, the glutamatergic synapse is responsible for the larger part of the brain's information processing. Despite the conceptual simplicity of the basic mechanism of synaptic transmission, the glutamatergic synapse shows a large variation in the response to the presynaptic release of the neurotransmitter. This variability is observed not only among different synapses but also in the same single synapse. The synaptic response variability is due to several mechanisms of control of the information transferred among the neurons and suggests that the glutamatergic synapse is not a simple bridge for the transfer of information but plays an important role in its elaboration and management. The control of the synaptic information is operated at pre, post, and extrasynaptic sites in a sort of cooperation between the pre and postsynaptic neurons which also involves the activity of other neurons. The interaction between the different mechanisms of control is extremely complicated and its complete functionality is far from being fully understood. The present review, although not exhaustively, is intended to outline the most important of these mechanisms and their complexity, the understanding of which will be among the most intriguing challenges of future neuroscience.
Collapse
|
6
|
Di Paolo A, Garat J, Eastman G, Farias J, Dajas-Bailador F, Smircich P, Sotelo-Silveira JR. Functional Genomics of Axons and Synapses to Understand Neurodegenerative Diseases. Front Cell Neurosci 2021; 15:686722. [PMID: 34248504 PMCID: PMC8267896 DOI: 10.3389/fncel.2021.686722] [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] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Accepted: 06/02/2021] [Indexed: 01/02/2023] Open
Abstract
Functional genomics studies through transcriptomics, translatomics and proteomics have become increasingly important tools to understand the molecular basis of biological systems in the last decade. In most cases, when these approaches are applied to the nervous system, they are centered in cell bodies or somatodendritic compartments, as these are easier to isolate and, at least in vitro, contain most of the mRNA and proteins present in all neuronal compartments. However, key functional processes and many neuronal disorders are initiated by changes occurring far away from cell bodies, particularly in axons (axopathologies) and synapses (synaptopathies). Both neuronal compartments contain specific RNAs and proteins, which are known to vary depending on their anatomical distribution, developmental stage and function, and thus form the complex network of molecular pathways required for neuron connectivity. Modifications in these components due to metabolic, environmental, and/or genetic issues could trigger or exacerbate a neuronal disease. For this reason, detailed profiling and functional understanding of the precise changes in these compartments may thus yield new insights into the still intractable molecular basis of most neuronal disorders. In the case of synaptic dysfunctions or synaptopathies, they contribute to dozens of diseases in the human brain including neurodevelopmental (i.e., autism, Down syndrome, and epilepsy) as well as neurodegenerative disorders (i.e., Alzheimer's and Parkinson's diseases). Histological, biochemical, cellular, and general molecular biology techniques have been key in understanding these pathologies. Now, the growing number of omics approaches can add significant extra information at a high and wide resolution level and, used effectively, can lead to novel and insightful interpretations of the biological processes at play. This review describes current approaches that use transcriptomics, translatomics and proteomic related methods to analyze the axon and presynaptic elements, focusing on the relationship that axon and synapses have with neurodegenerative diseases.
Collapse
Affiliation(s)
- Andres Di Paolo
- Departamento de Genómica, Instituto de Investigaciones Biológicas Clemente Estable (IIBCE), Montevideo, Uruguay
- Departamento de Proteínas y Ácidos Nucleicos, Instituto de Investigaciones Biológicas Clemente Estable (IIBCE), Montevideo, Uruguay
| | - Joaquin Garat
- Departamento de Genómica, Instituto de Investigaciones Biológicas Clemente Estable (IIBCE), Montevideo, Uruguay
| | - Guillermo Eastman
- Departamento de Genómica, Instituto de Investigaciones Biológicas Clemente Estable (IIBCE), Montevideo, Uruguay
| | - Joaquina Farias
- Departamento de Genómica, Instituto de Investigaciones Biológicas Clemente Estable (IIBCE), Montevideo, Uruguay
- Polo de Desarrollo Universitario “Espacio de Biología Vegetal del Noreste”, Centro Universitario Regional Noreste, Universidad de la República (UdelaR), Tacuarembó, Uruguay
| | - Federico Dajas-Bailador
- School of Life Sciences, Medical School Building, University of Nottingham, Nottingham, United Kingdom
| | - Pablo Smircich
- Departamento de Genómica, Instituto de Investigaciones Biológicas Clemente Estable (IIBCE), Montevideo, Uruguay
- Laboratorio de Interacciones Moleculares, Facultad de Ciencias, Universidad de la República (UdelaR), Montevideo, Uruguay
| | - José Roberto Sotelo-Silveira
- Departamento de Genómica, Instituto de Investigaciones Biológicas Clemente Estable (IIBCE), Montevideo, Uruguay
- Departamento de Biología Celular y Molecular, Facultad de Ciencias, Universidad de la República (UdelaR), Montevideo, Uruguay
| |
Collapse
|
7
|
Perrone-Capano C, Volpicelli F, Penna E, Chun JT, Crispino M. Presynaptic protein synthesis and brain plasticity: From physiology to neuropathology. Prog Neurobiol 2021; 202:102051. [PMID: 33845165 DOI: 10.1016/j.pneurobio.2021.102051] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 03/14/2021] [Accepted: 04/07/2021] [Indexed: 12/12/2022]
Abstract
To form and maintain extremely intricate and functional neural circuitry, mammalian neurons are typically endowed with highly arborized dendrites and a long axon. The synapses that link neurons to neurons or to other cells are numerous and often too remote for the cell body to make and deliver new proteins to the right place in time. Moreover, synapses undergo continuous activity-dependent changes in their number and strength, establishing the basis of neural plasticity. The innate dilemma is then how a highly complex neuron provides new proteins for its cytoplasmic periphery and individual synapses to support synaptic plasticity. Here, we review a growing body of evidence that local protein synthesis in discrete sites of the axon and presynaptic terminals plays crucial roles in synaptic plasticity, and that deregulation of this local translation system is implicated in various pathologies of the nervous system.
Collapse
Affiliation(s)
- Carla Perrone-Capano
- Department of Pharmacy, University of Naples Federico II, Naples, Italy; Institute of Genetics and Biophysics "Adriano Buzzati Traverso", CNR, Naples, Italy.
| | | | - Eduardo Penna
- Department of Biology, University of Naples Federico II, Naples, Italy.
| | - Jong Tai Chun
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Naples, Italy.
| | - Marianna Crispino
- Department of Biology, University of Naples Federico II, Naples, Italy.
| |
Collapse
|
8
|
Pereyra M, de Landeta AB, Dalto JF, Katche C, Medina JH. AMPA Receptor Expression Requirement During Long-Term Memory Retrieval and Its Association with mTORC1 Signaling. Mol Neurobiol 2021; 58:1711-1722. [PMID: 33244735 DOI: 10.1007/s12035-020-02215-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 11/16/2020] [Indexed: 12/13/2022]
Abstract
Recently, it was reported that mechanistic/mammalian target of rapamycin complex 1 (mTORC1) activity during memory retrieval is required for normal expression of aversive and non-aversive long-term memories. Here we used inhibitory-avoidance task to evaluate the potential mechanisms by which mTORC1 signaling pathway participates in memory retrieval. First, we studied the role of GluA-subunit trafficking during memory recall and its relationship with mTORC1 pathway. We found that pretest intrahippocampal infusion of GluR23ɣ, a peptide that selectively blocks GluA2-containing AMPA receptor (AMPAR) endocytosis, prevented the amnesia induced by the inhibition of mTORC1 during retrieval. Additionally, we found that GluA1 levels decreased and GluA2 levels increased at the hippocampal postsynaptic density subcellular fraction of rapamycin-infused animals during memory retrieval. GluA2 levels remained intact while GluA1 decreased at the synaptic plasma membrane fraction. Then, we evaluated the requirement of AMPAR subunit expression during memory retrieval. Intrahippocampal infusion of GluA1 or GluA2 antisense oligonucleotides (ASO) 3 h before testing impaired memory retention. The memory impairment induced by GluA2 ASO before retrieval was reverted by GluA23ɣ infusion 1 h before testing. However, AMPAR endocytosis blockade was not sufficient to compensate GluA1 synthesis inhibition. Our work indicates that de novo GluA1 and GluA2 AMPAR subunit expression is required for memory retrieval with potential different roles for each subunit and suggests that mTORC1 might regulate AMPAR trafficking during retrieval. Our present results highlight the role of mTORC1 as a key determinant of memory retrieval that impacts the recruitment of different AMPAR subunits.
Collapse
Affiliation(s)
- Magdalena Pereyra
- Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
- Instituto de Biología Celular y Neurociencia "Dr. Eduardo De Robertis" (IBCN), CONICET-Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Ana Belén de Landeta
- Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
- Instituto de Biología Celular y Neurociencia "Dr. Eduardo De Robertis" (IBCN), CONICET-Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Juliana Fátima Dalto
- Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
- Instituto de Biología Celular y Neurociencia "Dr. Eduardo De Robertis" (IBCN), CONICET-Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Cynthia Katche
- Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
- Instituto de Biología Celular y Neurociencia "Dr. Eduardo De Robertis" (IBCN), CONICET-Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Jorge H Medina
- Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina.
- Instituto de Biología Celular y Neurociencia "Dr. Eduardo De Robertis" (IBCN), CONICET-Universidad de Buenos Aires, Buenos Aires, Argentina.
| |
Collapse
|
9
|
Mollica MP, Trinchese G, Cimmino F, Penna E, Cavaliere G, Tudisco R, Musco N, Manca C, Catapano A, Monda M, Bergamo P, Banni S, Infascelli F, Lombardi P, Crispino M. Milk Fatty Acid Profiles in Different Animal Species: Focus on the Potential Effect of Selected PUFAs on Metabolism and Brain Functions. Nutrients 2021; 13:1111. [PMID: 33800688 PMCID: PMC8066999 DOI: 10.3390/nu13041111] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/16/2021] [Accepted: 03/24/2021] [Indexed: 12/13/2022] Open
Abstract
Milk contains several important nutrients that are beneficial for human health. This review considers the nutritional qualities of essential fatty acids (FAs), especially omega-3 (ω-3) and omega-6 (ω-6) polyunsaturated fatty acids (PUFAs) present in milk from ruminant and non-ruminant species. In particular, the impact of milk fatty acids on metabolism is discussed, including its effects on the central nervous system. In addition, we presented data indicating how animal feeding-the main way to modify milk fat composition-may have a potential impact on human health, and how rearing and feeding systems strongly affect milk quality within the same animal species. Finally, we have presented the results of in vivo studies aimed at supporting the beneficial effects of milk FA intake in animal models, and the factors limiting their transferability to humans were discussed.
Collapse
Affiliation(s)
- Maria P. Mollica
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (M.P.M.); (G.T.); (F.C.); (E.P.); (G.C.); (A.C.); (M.C.)
- BAT Center—Interuniversity Center for Studies on Bioinspired Agro-Environmental Technology, University of Naples ‘Federico II’, 80055 Naples, Italy
| | - Giovanna Trinchese
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (M.P.M.); (G.T.); (F.C.); (E.P.); (G.C.); (A.C.); (M.C.)
- BAT Center—Interuniversity Center for Studies on Bioinspired Agro-Environmental Technology, University of Naples ‘Federico II’, 80055 Naples, Italy
| | - Fabiano Cimmino
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (M.P.M.); (G.T.); (F.C.); (E.P.); (G.C.); (A.C.); (M.C.)
| | - Eduardo Penna
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (M.P.M.); (G.T.); (F.C.); (E.P.); (G.C.); (A.C.); (M.C.)
| | - Gina Cavaliere
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (M.P.M.); (G.T.); (F.C.); (E.P.); (G.C.); (A.C.); (M.C.)
| | - Raffaella Tudisco
- Department of Veterinary Medicine and Animal Production, University of Napoli Federico II, 80100 Naples, Italy; (R.T.); (N.M.); (F.I.); (P.L.)
| | - Nadia Musco
- Department of Veterinary Medicine and Animal Production, University of Napoli Federico II, 80100 Naples, Italy; (R.T.); (N.M.); (F.I.); (P.L.)
| | - Claudia Manca
- Department of Biomedical Sciences, University of Cagliari, Monserrato, 09042 Cagliari, Italy; (C.M.); (S.B.)
| | - Angela Catapano
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (M.P.M.); (G.T.); (F.C.); (E.P.); (G.C.); (A.C.); (M.C.)
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | - Marcellino Monda
- Department of Experimental Medicine, Section of Human Physiology and Unit of Dietetics and Sports Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy;
| | - Paolo Bergamo
- Institute of Food Sciences, National Research Council, 83100 Avellino, Italy
| | - Sebastiano Banni
- Department of Biomedical Sciences, University of Cagliari, Monserrato, 09042 Cagliari, Italy; (C.M.); (S.B.)
| | - Federico Infascelli
- Department of Veterinary Medicine and Animal Production, University of Napoli Federico II, 80100 Naples, Italy; (R.T.); (N.M.); (F.I.); (P.L.)
| | - Pietro Lombardi
- Department of Veterinary Medicine and Animal Production, University of Napoli Federico II, 80100 Naples, Italy; (R.T.); (N.M.); (F.I.); (P.L.)
| | - Marianna Crispino
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (M.P.M.); (G.T.); (F.C.); (E.P.); (G.C.); (A.C.); (M.C.)
| |
Collapse
|
10
|
Zhang Y, Li C, Qin Y, Cepparulo P, Millman M, Chopp M, Kemper A, Szalad A, Lu X, Wang L, Zhang ZG. Small extracellular vesicles ameliorate peripheral neuropathy and enhance chemotherapy of oxaliplatin on ovarian cancer. J Extracell Vesicles 2021; 10:e12073. [PMID: 33728031 PMCID: PMC7931803 DOI: 10.1002/jev2.12073] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 01/07/2021] [Accepted: 02/13/2021] [Indexed: 12/17/2022] Open
Abstract
There are no effective treatments for chemotherapy induced peripheral neuropathy (CIPN). Small extracellular vesicles (sEVs) facilitate intercellular communication and mediate nerve function and tumour progression. We found that the treatment of mice bearing ovarian tumour with sEVs derived from cerebral endothelial cells (CEC-sEVs) in combination with a chemo-drug, oxaliplatin, robustly reduced oxaliplatin-induced CIPN by decreasing oxaliplatin-damaged myelination and nerve fibres of the sciatic nerve and significantly amplified chemotherapy of oxaliplatin by reducing tumour size. The combination therapy substantially increased a set of sEV cargo-enriched miRNAs, but significantly reduced oxaliplatin-increased proteins in the sciatic nerve and tumour tissues. Bioinformatics analysis revealed the altered miRNAs and proteins formed two distinct networks that regulate neuropathy and tumour growth, respectively. Intravenously administered CEC-sEVs were internalized by axons of the sciatic nerve and cancer cells. Reduction of CEC-sEV cargo miRNAs abolished the effects of CEC-sEVs on oxaliplatin-inhibited axonal growth and on amplification of the anti-cancer effect in ovarian cancer cells, suggesting that alterations in the networks of miRNAs and proteins in recipient cells contribute to the therapeutic effect of CEC-sEVs on CIPN. Together, the present study demonstrates that CEC-sEVs suppressed CIPN and enhanced chemotherapy of oxaliplatin in the mouse bearing ovarian tumour.
Collapse
Affiliation(s)
- Yi Zhang
- Department of NeurologyHenry Ford Health SystemDetroitMichiganUSA
| | - Chao Li
- Department of NeurologyHenry Ford Health SystemDetroitMichiganUSA
| | - Yi Qin
- Department of NeurologyHenry Ford Health SystemDetroitMichiganUSA
| | | | | | - Michael Chopp
- Department of NeurologyHenry Ford Health SystemDetroitMichiganUSA
- Department of PhysicsOakland UniversityRochesterMichiganUSA
| | - Amy Kemper
- Department of PathologyHenry Ford Health SystemDetroitMichiganUSA
| | - Alexandra Szalad
- Department of NeurologyHenry Ford Health SystemDetroitMichiganUSA
| | - Xuerong Lu
- Department of NeurologyHenry Ford Health SystemDetroitMichiganUSA
| | - Lei Wang
- Department of NeurologyHenry Ford Health SystemDetroitMichiganUSA
| | - Zheng Gang Zhang
- Department of NeurologyHenry Ford Health SystemDetroitMichiganUSA
| |
Collapse
|
11
|
Di Giaimo R, Penna E, Pizzella A, Cirillo R, Perrone-Capano C, Crispino M. Cross Talk at the Cytoskeleton-Plasma Membrane Interface: Impact on Neuronal Morphology and Functions. Int J Mol Sci 2020; 21:ijms21239133. [PMID: 33266269 PMCID: PMC7730950 DOI: 10.3390/ijms21239133] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 11/18/2020] [Accepted: 11/29/2020] [Indexed: 12/13/2022] Open
Abstract
The cytoskeleton and its associated proteins present at the plasma membrane not only determine the cell shape but also modulate important aspects of cell physiology such as intracellular transport including secretory and endocytic pathways. Continuous remodeling of the cell structure and intense communication with extracellular environment heavily depend on interactions between cytoskeletal elements and plasma membrane. This review focuses on the plasma membrane-cytoskeleton interface in neurons, with a special emphasis on the axon and nerve endings. We discuss the interaction between the cytoskeleton and membrane mainly in two emerging topics of neurobiology: (i) production and release of extracellular vesicles and (ii) local synthesis of new proteins at the synapses upon signaling cues. Both of these events contribute to synaptic plasticity. Our review provides new insights into the physiological and pathological significance of the cytoskeleton-membrane interface in the nervous system.
Collapse
Affiliation(s)
- Rossella Di Giaimo
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (E.P.); (A.P.); (R.C.)
- Correspondence: (R.D.G.); (M.C.)
| | - Eduardo Penna
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (E.P.); (A.P.); (R.C.)
| | - Amelia Pizzella
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (E.P.); (A.P.); (R.C.)
| | - Raffaella Cirillo
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (E.P.); (A.P.); (R.C.)
| | - Carla Perrone-Capano
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy;
- Institute of Genetics and Biophysics “Adriano Buzzati Traverso”, National Research Council (CNR), 80131 Naples, Italy
| | - Marianna Crispino
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (E.P.); (A.P.); (R.C.)
- Correspondence: (R.D.G.); (M.C.)
| |
Collapse
|
12
|
Penna E, Pizzella A, Cimmino F, Trinchese G, Cavaliere G, Catapano A, Allocca I, Chun JT, Campanozzi A, Messina G, Precenzano F, Lanzara V, Messina A, Monda V, Monda M, Perrone-Capano C, Mollica MP, Crispino M. Neurodevelopmental Disorders: Effect of High-Fat Diet on Synaptic Plasticity and Mitochondrial Functions. Brain Sci 2020; 10:brainsci10110805. [PMID: 33142719 PMCID: PMC7694125 DOI: 10.3390/brainsci10110805] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 10/28/2020] [Accepted: 10/29/2020] [Indexed: 02/07/2023] Open
Abstract
Neurodevelopmental disorders (NDDs) include diverse neuropathologies characterized by abnormal brain development leading to impaired cognition, communication and social skills. A common feature of NDDs is defective synaptic plasticity, but the underlying molecular mechanisms are only partially known. Several studies have indicated that people’s lifestyles such as diet pattern and physical exercise have significant influence on synaptic plasticity of the brain. Indeed, it has been reported that a high-fat diet (HFD, with 30–50% fat content), which leads to systemic low-grade inflammation, has also a detrimental effect on synaptic efficiency. Interestingly, metabolic alterations associated with obesity in pregnant woman may represent a risk factor for NDDs in the offspring. In this review, we have discussed the potential molecular mechanisms linking the HFD-induced metabolic dysfunctions to altered synaptic plasticity underlying NDDs, with a special emphasis on the roles played by synaptic protein synthesis and mitochondrial functions.
Collapse
Affiliation(s)
- Eduardo Penna
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (E.P.); (A.P.); (F.C.); (G.T.); (G.C.); (A.C.); (I.A.); (M.C.)
| | - Amelia Pizzella
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (E.P.); (A.P.); (F.C.); (G.T.); (G.C.); (A.C.); (I.A.); (M.C.)
| | - Fabiano Cimmino
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (E.P.); (A.P.); (F.C.); (G.T.); (G.C.); (A.C.); (I.A.); (M.C.)
| | - Giovanna Trinchese
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (E.P.); (A.P.); (F.C.); (G.T.); (G.C.); (A.C.); (I.A.); (M.C.)
| | - Gina Cavaliere
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (E.P.); (A.P.); (F.C.); (G.T.); (G.C.); (A.C.); (I.A.); (M.C.)
| | - Angela Catapano
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (E.P.); (A.P.); (F.C.); (G.T.); (G.C.); (A.C.); (I.A.); (M.C.)
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy;
| | - Ivana Allocca
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (E.P.); (A.P.); (F.C.); (G.T.); (G.C.); (A.C.); (I.A.); (M.C.)
| | - Jong Tai Chun
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, 80121 Naples, Italy;
| | - Angelo Campanozzi
- Department of Medical and Surgical Sciences, University of Foggia, 71122 Foggia, Italy;
| | - Giovanni Messina
- Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy;
| | - Francesco Precenzano
- Department of Mental Health, Physical and Preventive Medicine, Clinic of Child and Adolescent Neuropsychiatry, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (F.P.); (V.L.)
| | - Valentina Lanzara
- Department of Mental Health, Physical and Preventive Medicine, Clinic of Child and Adolescent Neuropsychiatry, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (F.P.); (V.L.)
| | - Antonietta Messina
- Department of Experimental Medicine, Section of Human Physiology and Unit of Dietetics and Sports Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (A.M.); (M.M.)
| | - Vincenzo Monda
- Department of Experimental Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 81100 Caserta, Italy;
| | - Marcellino Monda
- Department of Experimental Medicine, Section of Human Physiology and Unit of Dietetics and Sports Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (A.M.); (M.M.)
| | - Carla Perrone-Capano
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy;
- Institute of Genetics and Biophysics “Adriano Buzzati Traverso”, CNR, 80131 Naples, Italy
| | - Maria Pina Mollica
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (E.P.); (A.P.); (F.C.); (G.T.); (G.C.); (A.C.); (I.A.); (M.C.)
- Correspondence: ; Tel.: +39-081-679990; Fax: +39-081-679233
| | - Marianna Crispino
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (E.P.); (A.P.); (F.C.); (G.T.); (G.C.); (A.C.); (I.A.); (M.C.)
| |
Collapse
|
13
|
Interplay between Peripheral and Central Inflammation in Obesity-Promoted Disorders: The Impact on Synaptic Mitochondrial Functions. Int J Mol Sci 2020; 21:ijms21175964. [PMID: 32825115 PMCID: PMC7504224 DOI: 10.3390/ijms21175964] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 08/12/2020] [Accepted: 08/17/2020] [Indexed: 12/14/2022] Open
Abstract
The metabolic dysfunctions induced by high fat diet (HFD) consumption are not limited to organs involved in energy metabolism but cause also a chronic low-grade systemic inflammation that affects the whole body including the central nervous system. The brain has been considered for a long time to be protected from systemic inflammation by the blood–brain barrier, but more recent data indicated an association between obesity and neurodegeneration. Moreover, obesity-related consequences, such as insulin and leptin resistance, mitochondrial dysfunction and reactive oxygen species (ROS) production, may anticipate and accelerate the physiological aging processes characterized by systemic inflammation and higher susceptibility to neurological disorders. Here, we discussed the link between obesity-related metabolic dysfunctions and neuroinflammation, with particular attention to molecules regulating the interplay between energetic impairment and altered synaptic plasticity, for instance AMP-activated protein kinase (AMPK) and Brain-derived neurotrophic factor (BDNF). The effects of HFD-induced neuroinflammation on neuronal plasticity may be mediated by altered brain mitochondrial functions. Since mitochondria play a key role in synaptic areas, providing energy to support synaptic plasticity and controlling ROS production, the negative effects of HFD may be more pronounced in synapses. In conclusion, it will be emphasized how HFD-induced metabolic alterations, systemic inflammation, oxidative stress, neuroinflammation and impaired brain plasticity are tightly interconnected processes, implicated in the pathogenesis of neurological diseases.
Collapse
|
14
|
Role of the Serotonin Receptor 7 in Brain Plasticity: From Development to Disease. Int J Mol Sci 2020; 21:ijms21020505. [PMID: 31941109 PMCID: PMC7013427 DOI: 10.3390/ijms21020505] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 01/08/2020] [Accepted: 01/10/2020] [Indexed: 12/18/2022] Open
Abstract
Our knowledge on the plastic functions of the serotonin (5-HT) receptor subtype 7 (5-HT7R) in the brain physiology and pathology have advanced considerably in recent years. A wealth of data show that 5-HT7R is a key player in the establishment and remodeling of neuronal cytoarchitecture during development and in the mature brain, and its dysfunction is linked to neuropsychiatric and neurodevelopmental diseases. The involvement of this receptor in synaptic plasticity is further demonstrated by data showing that its activation allows the rescue of long-term potentiation (LTP) and long-term depression (LTD) deficits in various animal models of neurodevelopmental diseases. In addition, it is becoming clear that the 5-HT7R is involved in inflammatory intestinal diseases, modulates the function of immune cells, and is likely to play a role in the gut-brain axis. In this review, we will mainly focus on recent findings on this receptor’s role in the structural and synaptic plasticity of the mammalian brain, although we will also illustrate novel aspects highlighted in gastrointestinal (GI) tract and immune system.
Collapse
|
15
|
Hafner AS, Donlin-Asp PG, Leitch B, Herzog E, Schuman EM. Local protein synthesis is a ubiquitous feature of neuronal pre- and postsynaptic compartments. Science 2019; 364:364/6441/eaau3644. [PMID: 31097639 DOI: 10.1126/science.aau3644] [Citation(s) in RCA: 224] [Impact Index Per Article: 44.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Revised: 01/16/2019] [Accepted: 04/02/2019] [Indexed: 12/11/2022]
Abstract
There is ample evidence for localization of messenger RNAs (mRNAs) and protein synthesis in neuronal dendrites; however, demonstrations of these processes in presynaptic terminals are limited. We used expansion microscopy to resolve pre- and postsynaptic compartments in rodent neurons. Most presynaptic terminals in the hippocampus and forebrain contained mRNA and ribosomes. We sorted fluorescently labeled mouse brain synaptosomes and then sequenced hundreds of mRNA species present within excitatory boutons. After brief metabolic labeling, >30% of all presynaptic terminals exhibited a signal, providing evidence for ongoing protein synthesis. We tested different classic plasticity paradigms and observed distinct patterns of rapid pre- and/or postsynaptic translation. Thus, presynaptic terminals are translationally competent, and local protein synthesis is differentially recruited to drive compartment-specific phenotypes that underlie different forms of plasticity.
Collapse
Affiliation(s)
| | | | - Beulah Leitch
- Department of Anatomy, School of Biomedical Sciences and the Brain Health Research Centre, University of Otago, Dunedin, New Zealand
| | - Etienne Herzog
- Interdisciplinary Institute for Neuroscience, University of Bordeaux, UMR 5297, F-33000, Bordeaux, France.,Interdisciplinary Institute for Neuroscience, CNRS, UMR 5297, F-33000, Bordeaux, France
| | - Erin M Schuman
- Max Planck Institute for Brain Research, Frankfurt, Germany.
| |
Collapse
|
16
|
Cefaliello C, Penna E, Barbato C, Di Ruberto G, Mollica MP, Trinchese G, Cigliano L, Borsello T, Chun JT, Giuditta A, Perrone-Capano C, Miniaci MC, Crispino M. Deregulated Local Protein Synthesis in the Brain Synaptosomes of a Mouse Model for Alzheimer's Disease. Mol Neurobiol 2019; 57:1529-1541. [PMID: 31784883 DOI: 10.1007/s12035-019-01835-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 11/12/2019] [Indexed: 12/27/2022]
Abstract
While protein synthesis in neurons is largely attributed to cell body and dendrites, the capability of synaptic regions to synthesize new proteins independently of the cell body has been widely demonstrated as an advantageous mechanism subserving synaptic plasticity. Thus, the contribution that local protein synthesis at synapses makes to physiology and pathology of brain plasticity may be more prevalent than initially thought. In this study, we tested if local protein synthesis at synapses is deregulated in the brains of TgCRND8 mice, an animal model for Alzheimer's disease (AD) overexpressing mutant human amyloid precursor protein (APP). To this end, we used synaptosomes as a model system to study the functionality of the synaptic regions in mouse brains. Our results showed that, while TgCRND8 mice exhibit early signs of brain inflammation and deficits in learning, the electrophoretic profile of newly synthesized proteins in their synaptosomes was subtly different from that of the control mice. Interestingly, APP itself was, in part, locally synthesized in the synaptosomes, underscoring the potential importance of local translation at synapses. More importantly, after the contextual fear conditioning, de novo synthesis of some individual proteins was significantly enhanced in the synaptosomes of control animals, but the TgCRND8 mice failed to display such synaptic modulation by training. Taken together, our results demonstrate that synaptic synthesis of proteins is impaired in the brain of a mouse model for AD, and raise the possibility that this deregulation may contribute to the early progression of the pathology.
Collapse
Affiliation(s)
- Carolina Cefaliello
- Department of Biology, University of Naples Federico II, Naples, Italy.,current address: Department of Neurology, University of Massachusetts Medical School, Worcester, MA, USA
| | - Eduardo Penna
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Carmela Barbato
- Department of Biology, University of Naples Federico II, Naples, Italy
| | | | | | | | - Luisa Cigliano
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Tiziana Borsello
- Department of Pharmacological and Biomolecular Sciences, Milan University, Milan, Italy.,Department of Neuroscience, Mario Negri Institute for Pharmacological Research-IRCCS, Milan, Italy
| | | | - Antonio Giuditta
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Carla Perrone-Capano
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Naples, Italy.,Institute of Genetics and Biophysics "Adriano Buzzati Traverso," CNR, Naples, Italy
| | - Maria Concetta Miniaci
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Naples, Italy.
| | - Marianna Crispino
- Department of Biology, University of Naples Federico II, Naples, Italy.
| |
Collapse
|
17
|
Cavaliere G, Trinchese G, Penna E, Cimmino F, Pirozzi C, Lama A, Annunziata C, Catapano A, Mattace Raso G, Meli R, Monda M, Messina G, Zammit C, Crispino M, Mollica MP. High-Fat Diet Induces Neuroinflammation and Mitochondrial Impairment in Mice Cerebral Cortex and Synaptic Fraction. Front Cell Neurosci 2019; 13:509. [PMID: 31798417 PMCID: PMC6861522 DOI: 10.3389/fncel.2019.00509] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 10/29/2019] [Indexed: 12/12/2022] Open
Abstract
Brain mitochondrial dysfunction is involved in the development of neurological and neurodegenerative diseases. Mitochondria specifically located at synapses play a key role in providing energy to support synaptic functions and plasticity, thus their defects may lead to synaptic failure, which is a common hallmark of neurodegenerative diseases. High-Fat Diet (HFD) consumption increases brain oxidative stress and impairs brain mitochondrial functions, although the underlying mechanisms are not completely understood. The aim of our study is to analyze neuroinflammation and mitochondrial dysfunctions in brain cortex and synaptosomal fraction isolated from a mouse model of diet-induced obesity. Male C57Bl/6 mice were divided into two groups fed a standard diet or HFD for 18 weeks. At the end of the treatment, inflammation (detected by ELISA), antioxidant state (measured by enzymatic activity), mitochondrial functions and efficiency (detected by oxidative capacity and Seahorse analysis), and brain-derived neurotrophic factor (BDNF) pathway (analyzed by western blot) were determined in brain cortex and synaptosomal fraction. In HFD animals, we observed an increase in inflammatory parameters and oxidative stress and a decrease in mitochondrial oxidative capacity both in the brain cortex and synaptosomal fraction. These alterations parallel with modulation of BDNF, a brain key signaling molecule that is linking synaptic plasticity and energy metabolism. Neuroinflammation HFD-dependent negatively affects BDNF pathway and mitochondrial activity in the brain cortex. The effect is even more pronounced in the synaptic region, where the impaired energy supply may have a negative impact on neuronal plasticity.
Collapse
Affiliation(s)
- Gina Cavaliere
- Department of Biology, University of Naples Federico II, Naples, Italy
| | | | - Eduardo Penna
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Fabiano Cimmino
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Claudio Pirozzi
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Adriano Lama
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Chiara Annunziata
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Angela Catapano
- Department of Biology, University of Naples Federico II, Naples, Italy.,Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | | | - Rosaria Meli
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Marcellino Monda
- Unit of Dietetics and Sports Medicine, Section of Human Physiology, Department of Experimental Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Giovanni Messina
- Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Christian Zammit
- Department of Anatomy, Faculty of Medicine and Surgery, University of Malta, Msida, Malta
| | - Marianna Crispino
- Department of Biology, University of Naples Federico II, Naples, Italy
| | | |
Collapse
|
18
|
Penna E, Cerciello A, Chambery A, Russo R, Cernilogar FM, Pedone EM, Perrone-Capano C, Cappello S, Di Giaimo R, Crispino M. Cystatin B Involvement in Synapse Physiology of Rodent Brains and Human Cerebral Organoids. Front Mol Neurosci 2019; 12:195. [PMID: 31467503 PMCID: PMC6707391 DOI: 10.3389/fnmol.2019.00195] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Accepted: 07/29/2019] [Indexed: 12/12/2022] Open
Abstract
Cystatin B (CSTB) is a ubiquitous protein belonging to a superfamily of protease inhibitors. CSTB may play a critical role in brain physiology because its mutations cause progressive myoclonic epilepsy-1A (EPM1A), the most common form of progressive myoclonic epilepsy. However, the molecular mechanisms underlying the role of CSTB in the central nervous system (CNS) are largely unknown. To investigate the possible involvement of CSTB in the synaptic plasticity, we analyzed its expression in synaptosomes as a model system in studying the physiology of the synaptic regions of the CNS. We found that CSTB is not only present in the synaptosomes isolated from rat and mouse brain cortex, but also secreted into the medium in a depolarization-controlled manner. In addition, using biorthogonal noncanonical amino acid tagging (BONCAT) procedure, we demonstrated, for the first time, that CSTB is locally synthesized in the synaptosomes. The synaptic localization of CSTB was confirmed in a human 3D model of cortical development, namely cerebral organoids. Altogether, these results suggest that CSTB may play a role in the brain plasticity and open a new perspective in studying the involvement of CSTB deregulation in neurodegenerative and neuropsychiatric diseases.
Collapse
Affiliation(s)
- Eduardo Penna
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Angela Cerciello
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Angela Chambery
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Caserta, Italy
| | - Rosita Russo
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Caserta, Italy
| | - Filippo M Cernilogar
- Division of Molecular Biology, Biomedical Center, Faculty of Medicine, LMU, Munich, Germany
| | - Emilia Maria Pedone
- Institute of Biostructures and Bioimaging, National Research Council (CNR), Naples, Italy
| | - Carla Perrone-Capano
- Department of Pharmacy, University of Naples Federico II, Naples, Italy.,Institute of Genetics and Biophysics "Adriano Buzzati Traverso", National Research Council (CNR), Naples, Italy
| | - Silvia Cappello
- Department of Developmental Neurobiology, Max Planck Institute of Psychiatry, Munich, Germany
| | - Rossella Di Giaimo
- Department of Biology, University of Naples Federico II, Naples, Italy.,Department of Developmental Neurobiology, Max Planck Institute of Psychiatry, Munich, Germany
| | - Marianna Crispino
- Department of Biology, University of Naples Federico II, Naples, Italy
| |
Collapse
|
19
|
The microRNA-29a Modulates Serotonin 5-HT7 Receptor Expression and Its Effects on Hippocampal Neuronal Morphology. Mol Neurobiol 2019; 56:8617-8627. [PMID: 31292861 DOI: 10.1007/s12035-019-01690-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 06/25/2019] [Indexed: 12/21/2022]
Abstract
miRNAs are master regulators of gene expression in diverse biological processes, including the modulation of neuronal cytoarchitecture. The identification of their physiological target genes remains one of the outstanding challenges. Recently, it has been demonstrated that the activation of serotonin receptor 7 (5-HT7R) plays a key role in regulating the neuronal structure, synaptogenesis, and synaptic plasticity during embryonic and early postnatal development of the central nervous system (CNS). In order to identify putative miRNAs targeting the 3'UTR of 5-HT7R mouse transcript, we used a computational prediction tool and detected the miR-29 family members as the only candidates. Thus, since miR-29a is more expressed than other members in the brain, we investigated its possible involvement in the regulation of neuronal morphology mediated by 5-HT7R. By luciferase assay, we show that miR-29a can act as a post-transcriptional regulator of 5-HT7R mRNA. Indeed, it downregulates 5-HT7R gene expression in cultured hippocampal neurons, while the expression of other serotonin receptors is not affected. From a functional point of view, miR-29a overexpression in hippocampal primary cultures impairs the 5HT7R-dependent neurite elongation and remodeling through the inhibition of the ERK intracellular signaling pathway. In vivo, the upregulation of miR-29a in the developing hippocampus parallels with the downregulation of 5-HT7R expression, supporting the hypothesis that this miRNA is a physiological modulator of 5-HT7R expression in the CNS.
Collapse
|
20
|
Anokhin PK, Razumkina EV, Shamakina IY. A Comparison of mRNA Expression of Dopamine Receptors, Tyrosine Hydroxylase, and Dopamine Transporter in the Mesolimbic System of Rats with Different Levels of Alcohol Consumption. NEUROCHEM J+ 2019. [DOI: 10.1134/s1819712419010033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
21
|
Prisco M, Casalino J, Cefaliello C, Giuditta A. Brain Metabolic DNA Is Reverse Transcribed in Cytoplasm: Evidence by Immunofluorescence Analysis. Mol Neurobiol 2019; 56:6770-6776. [PMID: 30919215 DOI: 10.1007/s12035-019-1569-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 03/18/2019] [Indexed: 10/27/2022]
Abstract
In a previous study (Mol Neurobiol 55:7476-7486, 2017), newly synthesized brain metabolic DNA (BMD) from rat subcellular fractions has been shown to behave as a DNA-RNA hybrid when analyzed in cesium gradients at early [3H] thymidine incorporation times but to assume the double-stranded configuration at later times. Conversely, BMD from purified nuclei displayed the dsDNA configuration even at early incorporation times. The results were interpreted to support the BMD origin by reverse transcription in the cytoplasm and its later acquisition of the double-stranded configuration before the partial transfer to the nuclei. This interpretation has now been confirmed by immunofluorescence analyses of newly synthesized BrdU-labeled BMD from the mouse brain that demonstrates its cytoplasmic localization and colocalization with DNA-RNA hybrids. In addition, BrdU-labeled BMD has been shown to colocalize with astroglial anti-GFAP antibodies and with presynaptic anti-synaptophysin antibodies.
Collapse
Affiliation(s)
- Marina Prisco
- Biology Department, University of Naples Federico II, Complesso Universitario Monte Sant'Angelo, Via Cinthia, 80126, Naples, Italy
| | - Joyce Casalino
- Biology Department, University of Naples Federico II, Complesso Universitario Monte Sant'Angelo, Via Cinthia, 80126, Naples, Italy
| | - Carolina Cefaliello
- Department of Neurology, University of Massachusetts Medical School, Albert Sherman Center 6-1008, 368 Plantation St., Worcester, MA, 01605, USA
| | - Antonio Giuditta
- Accademia di Scienze Fisiche e Matematiche, Via Mezzocannone 8, 80134, Naples, Italy.
| |
Collapse
|
22
|
Detection of single mRNAs in individual cells of the auditory system. Hear Res 2018; 367:88-96. [PMID: 30071403 DOI: 10.1016/j.heares.2018.07.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 05/23/2018] [Accepted: 07/16/2018] [Indexed: 01/17/2023]
Abstract
Gene expression analysis is essential for understanding the rich repertoire of cellular functions. With the development of sensitive molecular tools such as single-cell RNA sequencing, extensive gene expression data can be obtained and analyzed from various tissues. Single-molecule fluorescence in situ hybridization (smFISH) has emerged as a powerful complementary tool for single-cell genomics studies because of its ability to map and quantify the spatial distributions of single mRNAs at the subcellular level in their native tissue. Here, we present a detailed method to study the copy numbers and spatial localizations of single mRNAs in the cochlea and inferior colliculus. First, we demonstrate that smFISH can be performed successfully in adult cochlear tissue after decalcification. Second, we show that the smFISH signals can be detected with high specificity. Third, we adapt an automated transcript analysis pipeline to quantify and identify single mRNAs in a cell-specific manner. Lastly, we show that our method can be used to study possible correlations between transcriptional and translational activities of single genes. Thus, we have developed a detailed smFISH protocol that can be used to study the expression of single mRNAs in specific cell types of the peripheral and central auditory systems.
Collapse
|
23
|
Cefaliello C, Prisco M, Crispino M, Giuditta A. DNA in Squid Synaptosomes. Mol Neurobiol 2018; 56:56-60. [PMID: 29675577 DOI: 10.1007/s12035-018-1071-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Accepted: 04/09/2018] [Indexed: 11/26/2022]
Abstract
The synthesis of brain metabolic DNA (BMD) is modulated by learning and circadian oscillations and is not involved in cell division or DNA repair. Data from rats have highlighted its prevalent association with the mitochondrial fraction and its lack of identity with mtDNA. These features suggested that BMD could be localized in synaptosomes that are the major contaminants of brain mitochondrial fractions. The hypothesis has been examined by immunochemical analyses of the large synaptosomes of squid optic lobes that are readily prepared and identified. Optic lobe slices were incubated with 5-bromo-2-deoxyuridine (BrdU) and the isolated synaptosomal fraction was exposed to the green fluorescent anti-BrdU antibody. This procedure revealed that newly synthesized BrdU-labeled BMD is present in a significant percent of the large synaptosomes derived from the nerve terminals of retinal photoreceptor neurons and in synaptosomal bodies of smaller size. Synaptosomal BMD synthesis was strongly inhibited by actinomycin D. In addition, treatment of the synaptosomal fraction with Hoechst 33258, a blue fluorescent dye specific for dsDNA, indicated that native DNA was present in all synaptosomes. The possible role of synaptic BMD is briefly discussed.
Collapse
Affiliation(s)
- Carolina Cefaliello
- Department of Biology, University of Naples Federico II, Via Cinthia, 80126, Naples, Italy
- Department of Neurology, University of Massachusetts Medical School, Albert Sherman Center 6-1008, 368 Plantation St., Worcester, MA, 01605, USA
| | - Marina Prisco
- Department of Biology, University of Naples Federico II, Via Cinthia, 80126, Naples, Italy
| | - Marianna Crispino
- Department of Biology, University of Naples Federico II, Via Cinthia, 80126, Naples, Italy
| | - Antonio Giuditta
- Department of Biology, University of Naples Federico II, Via Cinthia, 80126, Naples, Italy.
- Accademia di Scienze Fisiche e Matematiche, Via Mezzocannone 8, 80134, Naples, Italy.
| |
Collapse
|
24
|
Abstract
Brain metabolic DNA (BMD) is not involved in cell division or DNA repair but is modulated by memory acquisition, sleep processing, and circadian oscillations. Using routine methods of subcellular fractionation, newly synthesized BMD from male rats is shown to be localized in crude nuclear, mitochondrial, and microsomal fractions and in two fractions of purified nuclei. Sub-fractionation of the mitochondrial fraction indicates the prevalent localization of BMD in free mitochondria and to a lesser degree in synaptosomes and myelin. Cesium density profiles of homogenate, subcellular fractions, and purified nuclei obtained after incorporation periods from 30 min to 4 h indicate that BMD synthesis takes place by reverse transcription in cytoplasmic organelles. Following the acquisition of the double-stranded structure, BMD is transferred to nuclei. Kinetic analyses lasting several weeks highlight the massive BMD turnover in subcellular fractions and purified nuclei and its dependence on age. Data are in agreement with the role of BMD as a temporary information store of cell responses of potential use in comparable forthcoming experiences.
Collapse
|
25
|
Younts TJ, Monday HR, Dudok B, Klein ME, Jordan BA, Katona I, Castillo PE. Presynaptic Protein Synthesis Is Required for Long-Term Plasticity of GABA Release. Neuron 2017; 92:479-492. [PMID: 27764673 DOI: 10.1016/j.neuron.2016.09.040] [Citation(s) in RCA: 133] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 07/29/2016] [Accepted: 09/20/2016] [Indexed: 12/16/2022]
Abstract
Long-term changes of neurotransmitter release are critical for proper brain function. However, the molecular mechanisms underlying these changes are poorly understood. While protein synthesis is crucial for the consolidation of postsynaptic plasticity, whether and how protein synthesis regulates presynaptic plasticity in the mature mammalian brain remain unclear. Here, using paired whole-cell recordings in rodent hippocampal slices, we report that presynaptic protein synthesis is required for long-term, but not short-term, plasticity of GABA release from type 1 cannabinoid receptor (CB1)-expressing axons. This long-term depression of inhibitory transmission (iLTD) involves cap-dependent protein synthesis in presynaptic interneuron axons, but not somata. Translation is required during the induction, but not maintenance, of iLTD. Mechanistically, CB1 activation enhances protein synthesis via the mTOR pathway. Furthermore, using super-resolution STORM microscopy, we revealed eukaryotic ribosomes in CB1-expressing axon terminals. These findings suggest that presynaptic local protein synthesis controls neurotransmitter release during long-term plasticity in the mature mammalian brain.
Collapse
Affiliation(s)
- Thomas J Younts
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, New York, NY 10461, USA.
| | - Hannah R Monday
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, New York, NY 10461, USA
| | - Barna Dudok
- Momentum Laboratory of Molecular Neurobiology, Institute of Experimental Medicine, Hungarian Academy of Sciences, Budapest 1051, Hungary; School of Ph.D. Studies, Semmelweis University, Budapest 1085, Hungary
| | - Matthew E Klein
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, New York, NY 10461, USA
| | - Bryen A Jordan
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, New York, NY 10461, USA; Department of Psychiatry and Behavioral Sciences, Albert Einstein College of Medicine, New York, NY 10461, USA
| | - István Katona
- Momentum Laboratory of Molecular Neurobiology, Institute of Experimental Medicine, Hungarian Academy of Sciences, Budapest 1051, Hungary
| | - Pablo E Castillo
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, New York, NY 10461, USA.
| |
Collapse
|
26
|
Squid Giant Axons Synthesize NF Proteins. Mol Neurobiol 2017; 55:3079-3084. [DOI: 10.1007/s12035-017-0561-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 04/12/2017] [Indexed: 10/19/2022]
|
27
|
Rangaraju V, Tom Dieck S, Schuman EM. Local translation in neuronal compartments: how local is local? EMBO Rep 2017; 18:693-711. [PMID: 28404606 DOI: 10.15252/embr.201744045] [Citation(s) in RCA: 110] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 03/15/2017] [Accepted: 03/15/2017] [Indexed: 12/18/2022] Open
Abstract
Efficient neuronal function depends on the continued modulation of the local neuronal proteome. Local protein synthesis plays a central role in tuning the neuronal proteome at specific neuronal regions. Various aspects of translation such as the localization of translational machinery, spatial spread of the newly translated proteins, and their site of action are carried out in specialized neuronal subcompartments to result in a localized functional outcome. In this review, we focus on the various aspects of these local translation compartments such as size, biochemical and organelle composition, structural boundaries, and temporal dynamics. We also discuss the apparent absence of definitive components of translation in these local compartments and the emerging state-of-the-art tools that could help dissecting these conundrums in greater detail in the future.
Collapse
Affiliation(s)
- Vidhya Rangaraju
- Max Planck Institute for Brain Research, Frankfurt am Main, Germany
| | | | - Erin M Schuman
- Max Planck Institute for Brain Research, Frankfurt am Main, Germany
| |
Collapse
|
28
|
Haglerød C, Hussain S, Nakamura Y, Xia J, Haug FMS, Ottersen OP, Henley JM, Davanger S. Presynaptic PICK1 facilitates trafficking of AMPA-receptors between active zone and synaptic vesicle pool. Neuroscience 2017; 344:102-112. [PMID: 28057533 DOI: 10.1016/j.neuroscience.2016.12.042] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 12/09/2016] [Accepted: 12/22/2016] [Indexed: 11/30/2022]
Abstract
Previous studies have indicated that presynaptic α-amino-3-hydroxy-5-methyl-4-isoxazole propionate receptors (AMPARs) contribute to the regulation of neurotransmitter release. In hippocampal synapses, the presynaptic surface expression of several AMPAR subunits, including GluA2, is regulated in a ligand-dependent manner. However, the molecular mechanisms underlying the presynaptic trafficking of AMPARs are still unknown. Here, using bright-field immunocytochemistry, western blots, and quantitative immunogold electron microscopy of the hippocampal CA1 area from intact adult rat brain, we demonstrate the association of AMPA receptors with the presynaptic active zone and with small presynaptic vesicles, in Schaffer collateral synapses in CA1 of the hippocampus. Furthermore, we show that GluA2 and protein interacting with C kinase 1 (PICK1) are colocalized at presynaptic vesicles. Similar to postsynaptic mechanisms, overexpression of either PICK1 or pep2m, which inhibit the N-ethylmaleimide sensitive fusion protein (NSF)-GluA2 interaction, decreases the concentration of GluA2 in the presynaptic active zone membrane. These data suggest that the interacting proteins PICK1 and NSF act as regulators of presynaptic GluA2-containing AMPAR trafficking between the active zone and a vesicle pool that may provide the basis of presynaptic components of synaptic plasticity.
Collapse
Affiliation(s)
- C Haglerød
- Institute of Basic Medical Sciences, Division of Anatomy, University of Oslo, Oslo, Norway
| | - S Hussain
- Institute of Basic Medical Sciences, Division of Anatomy, University of Oslo, Oslo, Norway
| | - Y Nakamura
- School of Biochemistry, Centre for Synaptic Plasticity, Biomedical Sciences Building, University of Bristol, Bristol BS8 1TD, UK
| | - J Xia
- Division of Life Science, Division of Biomedical Engineering and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - F-M S Haug
- Institute of Basic Medical Sciences, Division of Anatomy, University of Oslo, Oslo, Norway
| | - O P Ottersen
- Institute of Basic Medical Sciences, Division of Anatomy, University of Oslo, Oslo, Norway
| | - J M Henley
- School of Biochemistry, Centre for Synaptic Plasticity, Biomedical Sciences Building, University of Bristol, Bristol BS8 1TD, UK
| | - S Davanger
- Institute of Basic Medical Sciences, Division of Anatomy, University of Oslo, Oslo, Norway.
| |
Collapse
|
29
|
Fernández-Montoya J, Buendia I, Martin YB, Egea J, Negredo P, Avendaño C. Sensory Input-Dependent Changes in Glutamatergic Neurotransmission- Related Genes and Proteins in the Adult Rat Trigeminal Ganglion. Front Mol Neurosci 2016; 9:132. [PMID: 27965535 PMCID: PMC5124698 DOI: 10.3389/fnmol.2016.00132] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2016] [Accepted: 11/11/2016] [Indexed: 11/13/2022] Open
Abstract
Experience-dependent plasticity induces lasting changes in the structure of synapses, dendrites, and axons at both molecular and anatomical levels. Whilst relatively well studied in the cortex, little is known about the molecular changes underlying experience-dependent plasticity at peripheral levels of the sensory pathways. Given the importance of glutamatergic neurotransmission in the somatosensory system and its involvement in plasticity, in the present study, we investigated gene and protein expression of glutamate receptor subunits and associated molecules in the trigeminal ganglion (TG) of young adult rats. Microarray analysis of naïve rat TG revealed significant differences in the expression of genes, coding for various glutamate receptor subunits and proteins involved in clustering and stabilization of AMPA receptors, between left and right ganglion. Long-term exposure to sensory-enriched environment increased this left–right asymmetry in gene expression. Conversely, unilateral whisker trimming on the right side almost eliminated the mentioned asymmetries. The above manipulations also induced side-specific changes in the protein levels of glutamate receptor subunits. Our results show that sustained changes in sensory input induce modifications in glutamatergic transmission-related gene expression in the TG, thus supporting a role for this early sensory-processing node in experience-dependent plasticity.
Collapse
Affiliation(s)
- Julia Fernández-Montoya
- Departamento de Anatomía, Histología y Neurociencia, Universidad Autónoma de Madrid Madrid, Spain
| | - Izaskun Buendia
- Instituto de Investigación Sanitaria, Hospital Universitario de La PrincesaMadrid, Spain; Departamento de Farmacología y Terapéutica, Instituto Teófilo Hernando, Universidad Autónoma de MadridMadrid, Spain
| | - Yasmina B Martin
- Departamento de Anatomía, Histología y Neurociencia, Universidad Autónoma de MadridMadrid, Spain; Departamento de Anatomía, Universidad Francisco de VitoriaMadrid, Spain
| | - Javier Egea
- Instituto de Investigación Sanitaria, Hospital Universitario de La PrincesaMadrid, Spain; Departamento de Farmacología y Terapéutica, Instituto Teófilo Hernando, Universidad Autónoma de MadridMadrid, Spain
| | - Pilar Negredo
- Departamento de Anatomía, Histología y Neurociencia, Universidad Autónoma de Madrid Madrid, Spain
| | - Carlos Avendaño
- Departamento de Anatomía, Histología y Neurociencia, Universidad Autónoma de Madrid Madrid, Spain
| |
Collapse
|
30
|
Younts TJ, Monday HR, Dudok B, Klein ME, Jordan BA, Katona I, Castillo PE. Presynaptic Protein Synthesis Is Required for Long-Term Plasticity of GABA Release. Neuron 2016. [PMID: 27764673 DOI: 10.1016/j.neuron.2016.09.040.] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Long-term changes of neurotransmitter release are critical for proper brain function. However, the molecular mechanisms underlying these changes are poorly understood. While protein synthesis is crucial for the consolidation of postsynaptic plasticity, whether and how protein synthesis regulates presynaptic plasticity in the mature mammalian brain remain unclear. Here, using paired whole-cell recordings in rodent hippocampal slices, we report that presynaptic protein synthesis is required for long-term, but not short-term, plasticity of GABA release from type 1 cannabinoid receptor (CB1)-expressing axons. This long-term depression of inhibitory transmission (iLTD) involves cap-dependent protein synthesis in presynaptic interneuron axons, but not somata. Translation is required during the induction, but not maintenance, of iLTD. Mechanistically, CB1 activation enhances protein synthesis via the mTOR pathway. Furthermore, using super-resolution STORM microscopy, we revealed eukaryotic ribosomes in CB1-expressing axon terminals. These findings suggest that presynaptic local protein synthesis controls neurotransmitter release during long-term plasticity in the mature mammalian brain.
Collapse
Affiliation(s)
- Thomas J Younts
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, New York, NY 10461, USA.
| | - Hannah R Monday
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, New York, NY 10461, USA
| | - Barna Dudok
- Momentum Laboratory of Molecular Neurobiology, Institute of Experimental Medicine, Hungarian Academy of Sciences, Budapest 1051, Hungary; School of Ph.D. Studies, Semmelweis University, Budapest 1085, Hungary
| | - Matthew E Klein
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, New York, NY 10461, USA
| | - Bryen A Jordan
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, New York, NY 10461, USA; Department of Psychiatry and Behavioral Sciences, Albert Einstein College of Medicine, New York, NY 10461, USA
| | - István Katona
- Momentum Laboratory of Molecular Neurobiology, Institute of Experimental Medicine, Hungarian Academy of Sciences, Budapest 1051, Hungary
| | - Pablo E Castillo
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, New York, NY 10461, USA.
| |
Collapse
|
31
|
Gervasi NM, Scott SS, Aschrafi A, Gale J, Vohra SN, MacGibeny MA, Kar AN, Gioio AE, Kaplan BB. The local expression and trafficking of tyrosine hydroxylase mRNA in the axons of sympathetic neurons. RNA (NEW YORK, N.Y.) 2016; 22:883-95. [PMID: 27095027 PMCID: PMC4878614 DOI: 10.1261/rna.053272.115] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 03/01/2016] [Indexed: 05/06/2023]
Abstract
Synthesis and regulation of catecholamine neurotransmitters in the central nervous system are implicated in the pathogenesis of a number of neuropsychiatric disorders. To identify factors that regulate the presynaptic synthesis of catecholamines, we tested the hypothesis that the rate-limiting enzyme of the catecholamine biosynthetic pathway, tyrosine hydroxylase (TH), is locally synthesized in axons and presynaptic nerve terminals of noradrenergic neurons. To isolate pure axonal mRNA and protein, rat superior cervical ganglion sympathetic neurons were cultured in compartmentalized Campenot chambers. qRT-PCR and RNA in situ hybridization analyses showed that TH mRNA is present in distal axons. Colocalization experiments with nerve terminal marker proteins suggested that both TH mRNA and protein localize in regions of the axon that resemble nerve terminals (i.e., synaptic boutons). Analysis of polysome-bound RNA showed that TH mRNA is present in polysomes isolated from distal axons. Metabolic labeling of axonally synthesized proteins labeled with the methionine analog, L-azidohomoalanine, showed that TH is locally synthesized in axons. Moreover, the local transfection and translation of exogenous TH mRNA into distal axons facilitated axonal dopamine synthesis. Finally, using chimeric td-Tomato-tagged constructs, we identified a sequence element within the TH 3'UTR that is required for the axonal localization of the reporter mRNA. Taken together, our results provide the first direct evidence that TH mRNA is trafficked to the axon and that the mRNA is locally translated. These findings raise the interesting possibility that the biosynthesis of the catecholamine neurotransmitters is locally regulated in the axon and/or presynaptic nerve terminal.
Collapse
Affiliation(s)
- Noreen M Gervasi
- Laboratory of Molecular Biology, Division of Intramural Research Programs, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Shane S Scott
- Laboratory of Molecular Biology, Division of Intramural Research Programs, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Armaz Aschrafi
- Laboratory of Molecular Biology, Division of Intramural Research Programs, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Jenna Gale
- Laboratory of Molecular Biology, Division of Intramural Research Programs, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Sanah N Vohra
- Laboratory of Molecular Biology, Division of Intramural Research Programs, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Margaret A MacGibeny
- Laboratory of Molecular Biology, Division of Intramural Research Programs, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Amar N Kar
- Laboratory of Molecular Biology, Division of Intramural Research Programs, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Anthony E Gioio
- Laboratory of Molecular Biology, Division of Intramural Research Programs, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Barry B Kaplan
- Laboratory of Molecular Biology, Division of Intramural Research Programs, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA
| |
Collapse
|
32
|
Sotelo-Silveira JR, Holt CE. Introduction to the special issue on local protein synthesis in axons. Dev Neurobiol 2014; 74:207-9. [PMID: 24382841 DOI: 10.1002/dneu.22163] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 12/20/2013] [Accepted: 12/20/2013] [Indexed: 12/29/2022]
|
33
|
Fuxe K, Borroto-Escuela DO, Ciruela F, Guidolin D, Agnati LF. Receptor-receptor interactions in heteroreceptor complexes: a new principle in biology. Focus on their role in learning and memory. ACTA ACUST UNITED AC 2014. [DOI: 10.7243/2052-6946-2-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
34
|
Minis A, Dahary D, Manor O, Leshkowitz D, Pilpel Y, Yaron A. Subcellular transcriptomics-Dissection of the mRNA composition in the axonal compartment of sensory neurons. Dev Neurobiol 2013; 74:365-81. [DOI: 10.1002/dneu.22140] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2013] [Revised: 09/06/2013] [Accepted: 10/03/2013] [Indexed: 12/19/2022]
Affiliation(s)
- Adi Minis
- Department of Biological Chemistry; Weizmann Institute of Science; Rehovot 76100 Israel
| | - Dvir Dahary
- Department of Molecular Genetics; Weizmann Institute of Science; Rehovot 76100 Israel
| | - Ohad Manor
- Department of Computer Science and Applied Mathematics; Weizmann Institute of Science; Rehovot 76100 Israel
| | - Dena Leshkowitz
- Biological Services Department; Bioinformatics Unit, Weizmann Institute of Science; Rehovot 76100 Israel
| | - Yitzhak Pilpel
- Department of Molecular Genetics; Weizmann Institute of Science; Rehovot 76100 Israel
| | - Avraham Yaron
- Department of Biological Chemistry; Weizmann Institute of Science; Rehovot 76100 Israel
| |
Collapse
|