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De la Fuente IM, Carrasco-Pujante J, Camino-Pontes B, Fedetz M, Bringas C, Pérez-Samartín A, Pérez-Yarza G, López JI, Malaina I, Cortes JM. Systemic cellular migration: The forces driving the directed locomotion movement of cells. PNAS Nexus 2024; 3:pgae171. [PMID: 38706727 PMCID: PMC11067954 DOI: 10.1093/pnasnexus/pgae171] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 04/11/2024] [Indexed: 05/07/2024]
Abstract
Directional motility is an essential property of cells. Despite its enormous relevance in many fundamental physiological and pathological processes, how cells control their locomotion movements remains an unresolved question. Here, we have addressed the systemic processes driving the directed locomotion of cells. Specifically, we have performed an exhaustive study analyzing the trajectories of 700 individual cells belonging to three different species (Amoeba proteus, Metamoeba leningradensis, and Amoeba borokensis) in four different scenarios: in absence of stimuli, under an electric field (galvanotaxis), in a chemotactic gradient (chemotaxis), and under simultaneous galvanotactic and chemotactic stimuli. All movements were analyzed using advanced quantitative tools. The results show that the trajectories are mainly characterized by coherent integrative responses that operate at the global cellular scale. These systemic migratory movements depend on the cooperative nonlinear interaction of most, if not all, molecular components of cells.
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Affiliation(s)
- Ildefonso M De la Fuente
- Department of Mathematics, Faculty of Science and Technology, University of the Basque Country, UPV/EHU, Leioa 48940, Spain
- Department of Nutrition, CEBAS-CSIC Institute, Espinardo University Campus, Murcia 30100, Spain
| | - Jose Carrasco-Pujante
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country, UPV/EHU, Leioa 48940, Spain
| | | | - Maria Fedetz
- Department of Cell Biology and Immunology, Institute of Parasitology and Biomedicine “López-Neyra”, CSIC, Granada 18016, Spain
| | - Carlos Bringas
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country, UPV/EHU, Leioa 48940, Spain
| | - Alberto Pérez-Samartín
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country, UPV/EHU, Leioa 48940, Spain
| | - Gorka Pérez-Yarza
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country, UPV/EHU, Leioa 48940, Spain
| | - José I López
- Biobizkaia Health Research Institute, Barakaldo 48903, Spain
| | - Iker Malaina
- Department of Mathematics, Faculty of Science and Technology, University of the Basque Country, UPV/EHU, Leioa 48940, Spain
| | - Jesus M Cortes
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country, UPV/EHU, Leioa 48940, Spain
- Biobizkaia Health Research Institute, Barakaldo 48903, Spain
- IKERBASQUE: The Basque Foundation for Science, Bilbao 48009, Spain
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2
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Ayuso-García P, Sánchez-Rueda A, Velasco-Avilés S, Tamayo-Caro M, Ferrer-Pinós A, Huarte-Sebastian C, Alvarez V, Riobello C, Jiménez-Vega S, Buendia I, Cañas-Martin J, Fernández-Susavila H, Aparicio-Rey A, Esquinas-Román EM, Ponte CR, Guhl R, Laville N, Pérez-Andrés E, Lavín JL, González-Lopez M, Cámara NM, Aransay AM, Lozano JJ, Sutherland JD, Barrio R, Martinez-Chantar ML, Azkargorta M, Elortza F, Soriano-Navarro M, Matute C, Sánchez-Gómez MV, Bayón-Cordero L, Pérez-Samartín A, Bravo SB, Kurz T, Lama-Díaz T, Blanco MG, Haddad S, Record CJ, van Hasselt PM, Reilly MM, Varela-Rey M, Woodhoo A. Neddylation orchestrates the complex transcriptional and posttranscriptional program that drives Schwann cell myelination. Sci Adv 2024; 10:eadm7600. [PMID: 38608019 PMCID: PMC11014456 DOI: 10.1126/sciadv.adm7600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 03/11/2024] [Indexed: 04/14/2024]
Abstract
Myelination is essential for neuronal function and health. In peripheral nerves, >100 causative mutations have been identified that cause Charcot-Marie-Tooth disease, a disorder that can affect myelin sheaths. Among these, a number of mutations are related to essential targets of the posttranslational modification neddylation, although how these lead to myelin defects is unclear. Here, we demonstrate that inhibiting neddylation leads to a notable absence of peripheral myelin and axonal loss both in developing and regenerating mouse nerves. Our data indicate that neddylation exerts a global influence on the complex transcriptional and posttranscriptional program by simultaneously regulating the expression and function of multiple essential myelination signals, including the master transcription factor EGR2 and the negative regulators c-Jun and Sox2, and inducing global secondary changes in downstream pathways, including the mTOR and YAP/TAZ signaling pathways. This places neddylation as a critical regulator of myelination and delineates the potential pathogenic mechanisms involved in CMT mutations related to neddylation.
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Affiliation(s)
- Paula Ayuso-García
- Gene Regulatory Control in Disease Laboratory, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), University of Santiago de Compostela, 15706 Santiago de Compostela, A Coruña, Spain
| | - Alejandro Sánchez-Rueda
- Gene Regulatory Control in Disease Laboratory, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), University of Santiago de Compostela, 15706 Santiago de Compostela, A Coruña, Spain
| | - Sergio Velasco-Avilés
- Gene Regulatory Control in Disease Laboratory, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), University of Santiago de Compostela, 15706 Santiago de Compostela, A Coruña, Spain
| | - Miguel Tamayo-Caro
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology Park, 48160 Derio, Spain
| | - Aroa Ferrer-Pinós
- Gene Regulatory Control in Disease Laboratory, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), University of Santiago de Compostela, 15706 Santiago de Compostela, A Coruña, Spain
| | - Cecilia Huarte-Sebastian
- Gene Regulatory Control in Disease Laboratory, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), University of Santiago de Compostela, 15706 Santiago de Compostela, A Coruña, Spain
| | - Vanesa Alvarez
- Gene Regulatory Control in Disease Laboratory, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), University of Santiago de Compostela, 15706 Santiago de Compostela, A Coruña, Spain
| | - Cristina Riobello
- Gene Regulatory Control in Disease Laboratory, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), University of Santiago de Compostela, 15706 Santiago de Compostela, A Coruña, Spain
| | - Selene Jiménez-Vega
- Gene Regulatory Control in Disease Laboratory, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), University of Santiago de Compostela, 15706 Santiago de Compostela, A Coruña, Spain
| | - Izaskun Buendia
- Gene Regulatory Control in Disease Laboratory, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), University of Santiago de Compostela, 15706 Santiago de Compostela, A Coruña, Spain
- Laboratory of Neurobiology, Achucarro Basque Center for Neuroscience, Science Park of UPV/EHU, Sede building, 48940 Leioa, Spain
| | - Jorge Cañas-Martin
- Gene Regulatory Control in Disease Laboratory, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), University of Santiago de Compostela, 15706 Santiago de Compostela, A Coruña, Spain
| | - Héctor Fernández-Susavila
- Gene Regulatory Control in Disease Laboratory, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), University of Santiago de Compostela, 15706 Santiago de Compostela, A Coruña, Spain
| | - Adrián Aparicio-Rey
- Gene Regulatory Control in Disease Laboratory, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), University of Santiago de Compostela, 15706 Santiago de Compostela, A Coruña, Spain
| | - Eva M. Esquinas-Román
- Gene Regulatory Control in Disease Laboratory, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), University of Santiago de Compostela, 15706 Santiago de Compostela, A Coruña, Spain
| | - Carlos Rodríguez Ponte
- Gene Regulatory Control in Disease Laboratory, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), University of Santiago de Compostela, 15706 Santiago de Compostela, A Coruña, Spain
| | - Romane Guhl
- Gene Regulatory Control in Disease Laboratory, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), University of Santiago de Compostela, 15706 Santiago de Compostela, A Coruña, Spain
- Université Paris Cité Magistère Européen de Génétique, 85 Boulevard Saint-Germain, 75006 Paris, France
| | - Nicolas Laville
- Gene Regulatory Control in Disease Laboratory, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), University of Santiago de Compostela, 15706 Santiago de Compostela, A Coruña, Spain
- Université Paris Cité Magistère Européen de Génétique, 85 Boulevard Saint-Germain, 75006 Paris, France
| | - Encarni Pérez-Andrés
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology Park, 48160 Derio, Spain
| | - José L. Lavín
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology Park, 48160 Derio, Spain
- NEIKER–Basque Institute for Agricultural Research and Development, Applied Mathematics Department, Bioinformatics Unit, Basque Research and Technology Alliance (BRTA), 48160 Derio, Bizkaia, Spain
| | - Monika González-Lopez
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology Park, 48160 Derio, Spain
| | - Nuria Macías Cámara
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology Park, 48160 Derio, Spain
| | - Ana M. Aransay
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology Park, 48160 Derio, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, Spain
| | - Juan José Lozano
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, Spain
| | - James D. Sutherland
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology Park, 48160 Derio, Spain
| | - Rosa Barrio
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology Park, 48160 Derio, Spain
| | - María Luz Martinez-Chantar
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology Park, 48160 Derio, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, Spain
| | - Mikel Azkargorta
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology Park, 48160 Derio, Spain
| | - Félix Elortza
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology Park, 48160 Derio, Spain
| | - Mario Soriano-Navarro
- Electron Microscopy Core Facility, Centro de Investigación Príncipe Felipe (CIPF), 46012 Valencia, Spain
| | - Carlos Matute
- Laboratory of Neurobiology, Achucarro Basque Center for Neuroscience, Science Park of UPV/EHU, Sede building, 48940 Leioa, Spain
- Department of Neurosciences, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain
- Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), 28031 Madrid, Spain
| | - María Victoria Sánchez-Gómez
- Laboratory of Neurobiology, Achucarro Basque Center for Neuroscience, Science Park of UPV/EHU, Sede building, 48940 Leioa, Spain
- Department of Neurosciences, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain
- Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), 28031 Madrid, Spain
| | - Laura Bayón-Cordero
- Laboratory of Neurobiology, Achucarro Basque Center for Neuroscience, Science Park of UPV/EHU, Sede building, 48940 Leioa, Spain
- Department of Neurosciences, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain
- Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), 28031 Madrid, Spain
| | - Alberto Pérez-Samartín
- Laboratory of Neurobiology, Achucarro Basque Center for Neuroscience, Science Park of UPV/EHU, Sede building, 48940 Leioa, Spain
- Department of Neurosciences, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain
- Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), 28031 Madrid, Spain
| | - Susana B. Bravo
- Proteomic Unit, Health Research Institute of Santiago de Compostela (IDIS), 15705 Santiago de Compostela, A Coruña, Spain
| | - Thimo Kurz
- Evotec SE, Innovation Dr, Milton, Abingdon OX14 4RT, UK and School of Molecular Biosciences, University of Glasgow, Glasgow G12 8QQ, UK
| | - Tomas Lama-Díaz
- DNA Repair and Genome Integrity Laboratory, CIMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, 15706 Santiago de Compostela, A Coruña, Spain
| | - Miguel G. Blanco
- DNA Repair and Genome Integrity Laboratory, CIMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, 15706 Santiago de Compostela, A Coruña, Spain
- Department of Biochemistry and Molecular Biology, University of Santiago de Compostela, Plaza do Obradoiro s/n, Santiago de Compostela, Spain
| | - Saif Haddad
- Centre for Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
| | - Christopher J. Record
- Centre for Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
| | - Peter M. van Hasselt
- Department of Metabolic Diseases, Division Pediatrics, Wilhelmina Children’s Hospital University Medical Center Utrecht, Utrecht University, 3584 EA, Utrecht, Netherlands
| | - Mary M. Reilly
- Centre for Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
| | - Marta Varela-Rey
- Gene Regulatory Control in Disease Laboratory, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), University of Santiago de Compostela, 15706 Santiago de Compostela, A Coruña, Spain
- Department of Biochemistry and Molecular Biology, University of Santiago de Compostela, Plaza do Obradoiro s/n, Santiago de Compostela, Spain
| | - Ashwin Woodhoo
- Gene Regulatory Control in Disease Laboratory, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), University of Santiago de Compostela, 15706 Santiago de Compostela, A Coruña, Spain
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Bizkaia Technology Park, 48160 Derio, Spain
- IKERBASQUE, Basque Foundation for Science, 48009 Bilbao, Bizkaia, Spain
- Department of Functional Biology, University of Santiago de Compostela, Plaza do Obradoiro s/n, Santiago de Compostela, Spain
- Oportunius Research Professor at CIMUS/USC, Galician Agency of Innovation (GAIN), Xunta de Galicia, Santiago de Compostela, A Coruña, Spain
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Mendiguren A, Aostri E, Alberdi E, Pérez-Samartín A, Pineda J. Functional characterization of cannabidiol effect on the serotonergic neurons of the dorsal raphe nucleus in rat brain slices. Front Pharmacol 2022; 13:956886. [PMID: 36147343 PMCID: PMC9485894 DOI: 10.3389/fphar.2022.956886] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 07/18/2022] [Indexed: 11/13/2022] Open
Abstract
Cannabidiol (CBD), the main non-psychoactive cannabinoid found in the cannabis plant, elicits several pharmacological effects via the 5-HT1A receptor. The dorsal raphe nucleus (DRN) is the main serotonergic cluster in the brain that expresses the 5-HT1A receptor. To date, the effect of CBD on the neuronal activity of DRN 5-HT cells and its interaction with somatodendritic 5-HT1A autoreceptors have not been characterized. Our aim was to study the effect of CBD on the firing activity of DRN 5-HT cells and the 5-HT1A autoreceptor activation by electrophysiological and calcium imaging techniques in male Sprague–Dawley rat brain slices. Perfusion with CBD (30 μM, 10 min) did not significantly change the firing rate of DRN 5-HT cells or the inhibitory effect of 5-HT (50–100 μM, 1 min). However, in the presence of CBD (30 μM, 10 min), the inhibitory effects of 8-OH-DPAT (10 nM) and ipsapirone (100 nM) were reduced by 66% and 53%, respectively. CBD failed to reverse ipsapirone-induced inhibition, whereas perfusion with the 5-HT1A receptor antagonist WAY100635 (30 nM) completely restored by 97.05 ± 14.63% the firing activity of 5-HT cells. Administration of AM251 (1 µM), MDL100907 (30 nM), or picrotoxin (20 μM) did not change the blockade produced by CBD (30 μM) on ipsapirone-induced inhibition. Our study also shows that CBD failed to modify the KCl (15 mM, 4 min)-evoked increase in [Ca2+]i or the inhibitory effect of ipsapirone (1 μM, 4 min) on KCl-evoked [Ca2+]i. In conclusion, CBD does not activate 5-HT1A autoreceptors, but it hindered the inhibitory effect produced by selective 5-HT1A receptor agonists on the firing activity of DRN 5-HT cells through a mechanism that does not involve CB1, 5-HT2A, or GABAA receptors. Our data support a negative allosteric modulation of DRN somatodendritic 5-HT1A receptor by CBD.
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Affiliation(s)
- Aitziber Mendiguren
- Department of Pharmacology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Spain
- *Correspondence: Aitziber Mendiguren,
| | - Erik Aostri
- Department of Pharmacology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Elena Alberdi
- Achucarro Basque Center for Neuroscience, Department of Neuroscience, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Alberto Pérez-Samartín
- Achucarro Basque Center for Neuroscience, Department of Neuroscience, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Joseba Pineda
- Department of Pharmacology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Spain
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Palma A, Chara JC, Montilla A, Otxoa-de-Amezaga A, Ruíz-Jaén F, Planas AM, Matute C, Pérez-Samartín A, Domercq M. Clemastine Induces an Impairment in Developmental Myelination. Front Cell Dev Biol 2022; 10:841548. [PMID: 35372341 PMCID: PMC8970281 DOI: 10.3389/fcell.2022.841548] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 02/09/2022] [Indexed: 11/13/2022] Open
Abstract
Abnormalities in myelination are associated to behavioral and cognitive dysfunction in neurodevelopmental psychiatric disorders. Thus, therapies to promote or accelerate myelination could potentially ameliorate symptoms in autism. Clemastine, a histamine H1 antagonist with anticholinergic properties against muscarinic M1 receptor, is the most promising drug with promyelinating properties. Clemastine penetrates the blood brain barrier efficiently and promotes remyelination in different animal models of neurodegeneration including multiple sclerosis, ischemia and Alzheimer’s disease. However, its role in myelination during development is unknown. We showed that clemastine treatment during development increased oligodendrocyte differentiation in both white and gray matter. However, despite the increase in the number of oligodendrocytes, conduction velocity of myelinated fibers of corpus callosum decreased in clemastine treated mice. Confocal and electron microscopy showed a reduction in the number of myelinated axons and nodes of Ranvier and a reduction of myelin thickness in corpus callosum. To understand the mechanisms leading to myelin formation impairment in the presence of an excess of myelinating oligodendrocytes, we focused on microglial cells that also express muscarinic M1 receptors. Importantly, the population of CD11c+ microglia cells, necessary for myelination, as well as the levels of insulin growth factor-1 decrease in clemastine-treated mice. Altogether, these data suggest that clemastine impact on myelin development is more complex than previously thought and could be dependent on microglia-oligodendrocyte crosstalk. Further studies are needed to clarify the role of microglia cells on developmental myelination.
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Affiliation(s)
- Ana Palma
- Achucarro Basque Center for Neuroscience and Department of Neurosciences, University of the Basque Country UPV/EHU, Leioa, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Leioa, Spain
| | - Juan Carlos Chara
- Achucarro Basque Center for Neuroscience and Department of Neurosciences, University of the Basque Country UPV/EHU, Leioa, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Leioa, Spain
| | - Alejandro Montilla
- Achucarro Basque Center for Neuroscience and Department of Neurosciences, University of the Basque Country UPV/EHU, Leioa, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Leioa, Spain
| | - Amaia Otxoa-de-Amezaga
- Achucarro Basque Center for Neuroscience and Department of Neurosciences, University of the Basque Country UPV/EHU, Leioa, Spain
| | - Francisca Ruíz-Jaén
- Department of Neuroscience and Experimental Therapeutics, Institute for Biomedical Research of Barcelona (IIBB), Spanish National Research Council (CSIC), Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Anna M. Planas
- Department of Neuroscience and Experimental Therapeutics, Institute for Biomedical Research of Barcelona (IIBB), Spanish National Research Council (CSIC), Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Carlos Matute
- Achucarro Basque Center for Neuroscience and Department of Neurosciences, University of the Basque Country UPV/EHU, Leioa, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Leioa, Spain
| | - Alberto Pérez-Samartín
- Achucarro Basque Center for Neuroscience and Department of Neurosciences, University of the Basque Country UPV/EHU, Leioa, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Leioa, Spain
| | - María Domercq
- Achucarro Basque Center for Neuroscience and Department of Neurosciences, University of the Basque Country UPV/EHU, Leioa, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Leioa, Spain
- *Correspondence: María Domercq,
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Ordaz RP, Garay E, Limon A, Pérez-Samartín A, Sánchez-Gómez MV, Robles-Martínez L, Cisneros-Mejorado A, Matute C, Arellano RO. GABA A Receptors Expressed in Oligodendrocytes Cultured from the Neonatal Rat Contain α3 and γ1 Subunits and Present Differential Functional and Pharmacological Properties. Mol Pharmacol 2020; 99:133-146. [PMID: 33288547 DOI: 10.1124/molpharm.120.000091] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 11/05/2020] [Indexed: 12/25/2022] Open
Abstract
Oligodendrocytes (OLs) express functional GABAA receptors (GABAARs) that are activated by GABA released at synaptic contacts with axons or by ambient GABA in extrasynaptic domains. In both instances, the receptors' molecular identity has not been fully defined. Furthermore, data on their structural diversity in different brain regions and information on age-dependent changes in their molecular composition are scant. This lack of knowledge has delayed access to a better understanding of the role of GABAergic signaling between neurons and OLs. Here, we used functional, and pharmacological analyses, as well as gene and protein expression of GABAAR subunits, to explore the subunit combination that could explain the receptor functional profile expressed in OLs from the neonate rat. We found that GABAAR composed of α3β2γ1 subunits mimicked the characteristics of the endogenous receptor when expressed heterologously in Xenopus laevis oocytes. Either α3 or γ1 subunit silencing by small interfering RNA transfection changed the GABA-response characteristics in oligodendrocyte precursor cells, indicating their participation in the endogenous receptor conformation. Thus, α3 subunit silencing shifted the mean EC50 for GABA from 75.1 to 46.6 µM, whereas γ1 silencing reduced the current amplitude response by 55%. We also observed that β-carbolines differentially enhance GABA responses in oligodendroglia as compared with those in neurons. These results contribute to defining the molecular and pharmacological properties of GABAARs in OLs. Additionally, the identification of β-carbolines as selective enhancers of GABAARs in OLs may help to study the role of GABAergic signaling during myelination. SIGNIFICANCE STATEMENT: GABAergic signaling through GABAA receptors (GABAARs) expressed in the oligodendroglial lineage contributes to the myelination control. Determining the molecular identity and the pharmacology of these receptors is essential to define their specific roles in myelination. Using GABAAR subunit expression and silencing, we identified that the GABAAR subunit combination α3β2γ1 conforms the bulk of GABAARs in oligodendrocytes from rat neonates. Furthermore, we found that these receptors have differential pharmacological properties that allow specific positive modulation by β-carbolines.
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Affiliation(s)
- Rainald Pablo Ordaz
- Instituto de Neurobiología, Laboratorio de Neurofisiología Celular, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, México (R.P.O., E.G., L.R.-M., A.C.-M., R.O.A.); Mitchell Center for Neurodegenerative Diseases, Department of Neurology, School of Medicine, University of Texas Medical Branch at Galveston, Galveston, Texas (A.L.); and Achucarro Basque Center for Neuroscience, CIBERNED and Departamento de Neurociencias, Universidad del País Vasco (UPV/EHU), Leioa, Spain (A.P.-S., M.V.S.-G., C.M.)
| | - Edith Garay
- Instituto de Neurobiología, Laboratorio de Neurofisiología Celular, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, México (R.P.O., E.G., L.R.-M., A.C.-M., R.O.A.); Mitchell Center for Neurodegenerative Diseases, Department of Neurology, School of Medicine, University of Texas Medical Branch at Galveston, Galveston, Texas (A.L.); and Achucarro Basque Center for Neuroscience, CIBERNED and Departamento de Neurociencias, Universidad del País Vasco (UPV/EHU), Leioa, Spain (A.P.-S., M.V.S.-G., C.M.)
| | - Agenor Limon
- Instituto de Neurobiología, Laboratorio de Neurofisiología Celular, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, México (R.P.O., E.G., L.R.-M., A.C.-M., R.O.A.); Mitchell Center for Neurodegenerative Diseases, Department of Neurology, School of Medicine, University of Texas Medical Branch at Galveston, Galveston, Texas (A.L.); and Achucarro Basque Center for Neuroscience, CIBERNED and Departamento de Neurociencias, Universidad del País Vasco (UPV/EHU), Leioa, Spain (A.P.-S., M.V.S.-G., C.M.)
| | - Alberto Pérez-Samartín
- Instituto de Neurobiología, Laboratorio de Neurofisiología Celular, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, México (R.P.O., E.G., L.R.-M., A.C.-M., R.O.A.); Mitchell Center for Neurodegenerative Diseases, Department of Neurology, School of Medicine, University of Texas Medical Branch at Galveston, Galveston, Texas (A.L.); and Achucarro Basque Center for Neuroscience, CIBERNED and Departamento de Neurociencias, Universidad del País Vasco (UPV/EHU), Leioa, Spain (A.P.-S., M.V.S.-G., C.M.)
| | - María Victoria Sánchez-Gómez
- Instituto de Neurobiología, Laboratorio de Neurofisiología Celular, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, México (R.P.O., E.G., L.R.-M., A.C.-M., R.O.A.); Mitchell Center for Neurodegenerative Diseases, Department of Neurology, School of Medicine, University of Texas Medical Branch at Galveston, Galveston, Texas (A.L.); and Achucarro Basque Center for Neuroscience, CIBERNED and Departamento de Neurociencias, Universidad del País Vasco (UPV/EHU), Leioa, Spain (A.P.-S., M.V.S.-G., C.M.)
| | - Leticia Robles-Martínez
- Instituto de Neurobiología, Laboratorio de Neurofisiología Celular, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, México (R.P.O., E.G., L.R.-M., A.C.-M., R.O.A.); Mitchell Center for Neurodegenerative Diseases, Department of Neurology, School of Medicine, University of Texas Medical Branch at Galveston, Galveston, Texas (A.L.); and Achucarro Basque Center for Neuroscience, CIBERNED and Departamento de Neurociencias, Universidad del País Vasco (UPV/EHU), Leioa, Spain (A.P.-S., M.V.S.-G., C.M.)
| | - Abraham Cisneros-Mejorado
- Instituto de Neurobiología, Laboratorio de Neurofisiología Celular, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, México (R.P.O., E.G., L.R.-M., A.C.-M., R.O.A.); Mitchell Center for Neurodegenerative Diseases, Department of Neurology, School of Medicine, University of Texas Medical Branch at Galveston, Galveston, Texas (A.L.); and Achucarro Basque Center for Neuroscience, CIBERNED and Departamento de Neurociencias, Universidad del País Vasco (UPV/EHU), Leioa, Spain (A.P.-S., M.V.S.-G., C.M.)
| | - Carlos Matute
- Instituto de Neurobiología, Laboratorio de Neurofisiología Celular, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, México (R.P.O., E.G., L.R.-M., A.C.-M., R.O.A.); Mitchell Center for Neurodegenerative Diseases, Department of Neurology, School of Medicine, University of Texas Medical Branch at Galveston, Galveston, Texas (A.L.); and Achucarro Basque Center for Neuroscience, CIBERNED and Departamento de Neurociencias, Universidad del País Vasco (UPV/EHU), Leioa, Spain (A.P.-S., M.V.S.-G., C.M.)
| | - Rogelio O Arellano
- Instituto de Neurobiología, Laboratorio de Neurofisiología Celular, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, México (R.P.O., E.G., L.R.-M., A.C.-M., R.O.A.); Mitchell Center for Neurodegenerative Diseases, Department of Neurology, School of Medicine, University of Texas Medical Branch at Galveston, Galveston, Texas (A.L.); and Achucarro Basque Center for Neuroscience, CIBERNED and Departamento de Neurociencias, Universidad del País Vasco (UPV/EHU), Leioa, Spain (A.P.-S., M.V.S.-G., C.M.)
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6
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Cisneros-Mejorado AJ, Pérez-Samartín A, Domercq M, Arellano RO, Gottlieb M, Koch-Nolte F, Matute C. P2X7 Receptors as a Therapeutic Target in Cerebrovascular Diseases. Front Mol Neurosci 2020; 13:92. [PMID: 32714144 PMCID: PMC7340211 DOI: 10.3389/fnmol.2020.00092] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 05/05/2020] [Indexed: 12/20/2022] Open
Abstract
Shortage of oxygen and nutrients in the brain induces the release of glutamate and ATP that can cause excitotoxicity and contribute to neuronal and glial damage. Our understanding of the mechanisms of ATP release and toxicity in cerebrovascular diseases is incomplete. This review aims at summarizing current knowledge about the participation of key elements in the ATP-mediated deleterious effects in these pathologies. This includes pannexin-1 hemichannels, calcium homeostasis modulator-1 (CALHM1), purinergic P2X7 receptors, and other intermediaries of CNS injury downstream of ATP release. Available data together with recent pharmacological developments in purinergic signaling may constitute a new opportunity to translate preclinical findings into more effective therapies in cerebrovascular diseases.
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Affiliation(s)
| | - Alberto Pérez-Samartín
- Achucarro Basque Center for Neuroscience, Departamento de Neurociencias, Universidad del País Vasco, CIBERNED, Leioa, Spain
| | - María Domercq
- Achucarro Basque Center for Neuroscience, Departamento de Neurociencias, Universidad del País Vasco, CIBERNED, Leioa, Spain
| | - Rogelio O Arellano
- Instituto de Neurobiología, Universidad Nacional Autónoma de México, Juriquilla, Mexico
| | - Miroslav Gottlieb
- Institute of Neurobiology, Slovak Academy of Sciences, Kosice, Slovakia
| | | | - Carlos Matute
- Achucarro Basque Center for Neuroscience, Departamento de Neurociencias, Universidad del País Vasco, CIBERNED, Leioa, Spain
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7
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De la Fuente IM, Bringas C, Malaina I, Regner B, Pérez-Samartín A, Boyano MD, Fedetz M, López JI, Pérez-Yarza G, Cortes JM, Sejnowski T. The nucleus does not significantly affect the migratory trajectories of amoeba in two-dimensional environments. Sci Rep 2019; 9:16369. [PMID: 31704992 PMCID: PMC6841717 DOI: 10.1038/s41598-019-52716-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 10/21/2019] [Indexed: 12/11/2022] Open
Abstract
For a wide range of cells, from bacteria to mammals, locomotion movements are a crucial systemic behavior for cellular life. Despite its importance in a plethora of fundamental physiological processes and human pathologies, how unicellular organisms efficiently regulate their locomotion system is an unresolved question. Here, to understand the dynamic characteristics of the locomotion movements and to quantitatively study the role of the nucleus in the migration of Amoeba proteus we have analyzed the movement trajectories of enucleated and non-enucleated amoebas on flat two-dimensional (2D) surfaces using advanced non-linear physical-mathematical tools and computational methods. Our analysis shows that both non-enucleated and enucleated amoebas display the same kind of dynamic migration structure characterized by highly organized data sequences, super-diffusion, non-trivial long-range positive correlations, persistent dynamics with trend-reinforcing behavior, and move-step fluctuations with scale invariant properties. Our results suggest that the presence of the nucleus does not significantly affect the locomotion of amoeba in 2D environments.
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Affiliation(s)
- Ildefonso M De la Fuente
- Department of Nutrition, CEBAS-CSIC Institute, Espinardo University Campus, Murcia, 30100, Spain.
- Department of Mathematics, Faculty of Science and Technology, University of the Basque Country, UPV/EHU, Leioa, 48940, Spain.
| | - Carlos Bringas
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country, UPV/EHU, Leioa, 48940, Spain
| | - Iker Malaina
- Department of Applied Mathematics, Statistics and Operational Research, Faculty of Science and Technology, University of the Basque Country, UPV/EHU, Leioa, 48940, Spain
| | | | - Alberto Pérez-Samartín
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country, UPV/EHU, Leioa, 48940, Spain
| | - María Dolores Boyano
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country, UPV/EHU, Leioa, 48940, Spain
| | - María Fedetz
- Department of Cellular Biology and Immunology, Institute of Parasitology and Biomedicine "López-Neyra", CSIC, Granada, 18100, Spain
| | - José I López
- Department of Pathology, Cruces University Hospital, Biocruces-Bizkaia Health Research Institute, University of the Basque Country, UPV/EHU, Barakaldo, 48903, Spain
| | - Gorka Pérez-Yarza
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country, UPV/EHU, Leioa, 48940, Spain
| | - Jesus M Cortes
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country, UPV/EHU, Leioa, 48940, Spain
- Biocruces-Bizkaia Health Research Institute, Cruces University Hospital, Barakaldo, 48903, Spain
- IKERBASQUE: The Basque Foundation for Science, Bilbao, 48013, Spain
| | - Terrence Sejnowski
- Computational Neurobiology Laboratory, Howard Hughes Medical Institute, The Salk Institute for Biological Studies, La Jolla, California, 92037, USA
- Division of Biological Sciences, University of California, San Diego, La Jolla, California, 92093, USA
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8
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De la Fuente IM, Bringas C, Malaina I, Fedetz M, Carrasco-Pujante J, Morales M, Knafo S, Martínez L, Pérez-Samartín A, López JI, Pérez-Yarza G, Boyano MD. Evidence of conditioned behavior in amoebae. Nat Commun 2019; 10:3690. [PMID: 31417086 PMCID: PMC6695432 DOI: 10.1038/s41467-019-11677-w] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 07/26/2019] [Indexed: 01/05/2023] Open
Abstract
Associative memory is the main type of learning by which complex organisms endowed with evolved nervous systems respond efficiently to certain environmental stimuli. It has been found in different multicellular species, from cephalopods to humans, but never in individual cells. Here we describe a motility pattern consistent with associative conditioned behavior in the microorganism Amoeba proteus. We use a controlled direct-current electric field as the conditioned stimulus, and a specific chemotactic peptide as the unconditioned stimulus. The amoebae are capable of linking two independent past events, generating persistent locomotion movements that can prevail for 44 min on average. We confirm a similar behavior in a related species, Metamoeba leningradensis. Thus, our results indicate that unicellular organisms can modify their behavior during migration by associative conditioning.
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Affiliation(s)
- Ildefonso M De la Fuente
- Department of Nutrition, CEBAS-CSIC Institute, Espinardo University Campus, Murcia, 30100, Spain.
- Department of Mathematics, Faculty of Science and Technology, University of the Basque Country, UPV/EHU, Leioa, 48940, Spain.
| | - Carlos Bringas
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country, UPV/EHU, Leioa, 48940, Spain
| | - Iker Malaina
- Department of Mathematics, Faculty of Science and Technology, University of the Basque Country, UPV/EHU, Leioa, 48940, Spain
| | - María Fedetz
- Department of Cell Biology and Immunology, Institute of Parasitology and Biomedicine "López-Neyra", CSIC, Granada, 18016, Spain
| | - Jose Carrasco-Pujante
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country, UPV/EHU, Leioa, 48940, Spain
| | - Miguel Morales
- Biophysics Institute, CSIC-UPV/EHU, University of the Basque Country (UPV/EHU), Leioa, 48940, Spain
| | - Shira Knafo
- Biophysics Institute, CSIC-UPV/EHU, University of the Basque Country (UPV/EHU), Leioa, 48940, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao, 48013, Spain
- Department of Physiology and Cell Biology, Faculty of Health Sciences, and The National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Luis Martínez
- Department of Mathematics, Faculty of Science and Technology, University of the Basque Country, UPV/EHU, Leioa, 48940, Spain
- Basque Center of Applied Mathematics (BCAM), Bilbao, 48009, Spain
| | - Alberto Pérez-Samartín
- Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country, UPV/EHU, Leioa, 48940, Spain
| | - José I López
- Department of Pathology, Cruces University Hospital, Biocruces-Bizkaia Health Research Institute, University of the Basque Country (UPV/EHU), Barakaldo, 48903, Spain
| | - Gorka Pérez-Yarza
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country, UPV/EHU, Leioa, 48940, Spain
| | - María Dolores Boyano
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country, UPV/EHU, Leioa, 48940, Spain
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Serrano-Regal MP, Luengas-Escuza I, Bayón-Cordero L, Ibarra-Aizpurua N, Alberdi E, Pérez-Samartín A, Matute C, Sánchez-Gómez MV. Oligodendrocyte Differentiation and Myelination Is Potentiated via GABA B Receptor Activation. Neuroscience 2019; 439:163-180. [PMID: 31349008 DOI: 10.1016/j.neuroscience.2019.07.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [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: 04/03/2019] [Revised: 07/02/2019] [Accepted: 07/03/2019] [Indexed: 02/07/2023]
Abstract
Differentiation of oligodendrocyte precursor cells (OPCs) into mature oligodendrocytes (OLs) is a key event for axonal myelination in the central nervous system (CNS). Several growth factors and neurotransmitters like GABA are postulated as important regulators of that process, and different protein kinases may also participate in OL differentiation and myelination. However, the molecular mechanisms underlying the regulation of myelination by neurotransmitters are only partially known. In the present study, we provide evidence showing that GABA receptors (GABARs) play an important role in OL differentiation. First, we observed that OPCs and OLs synthesize GABA and expressed GABAR and transporters, both in vitro and in vivo and, in contrast to GABAARs, the subunits GABAB1R and GABAB2R are expressed in OLs over time. Then, we found that exogenous GABA increases the number of myelin segments and MBP expression in DRG-OPC cocultures, indicating that GABA regulates myelination when OLs are in contact with axons. Notably, in purified rat OPC cultures, chronic treatment with GABA and baclofen, specific GABABR agonist, accelerates OPC differentiation by enhancing the processes branching and myelin protein expression, effects that are reverted in presence of GABABR specific antagonist CGP55845. Exposure of OPCs to baclofen promotes the Src-phosphorylation, and the baclofen-induced maturation is attenuated in presence of the Src-family kinases inhibitor PP2. None of these effects are mediated by the GABAAR agonist muscimol. Together, these results highlight the relevance of the GABAergic system in OL differentiation, and indicate that this functional role is mediated through GABABR involving the participation of Src-family kinases. This article is part of a Special Issue entitled: Honoring Ricardo Miledi - outstanding neuroscientist of XX-XXI centuries.
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Affiliation(s)
- Mari Paz Serrano-Regal
- Deparment of Neurosciences, University of the Basque Country (UPV/EHU), Leioa, Spain; Achucarro Basque Center for Neuroscience, Leioa, Spain; Centro de Investigación en Red de Enfermedades Neurodegenerativas (CIBERNED), Leioa, Spain
| | - Irene Luengas-Escuza
- Deparment of Neurosciences, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Laura Bayón-Cordero
- Deparment of Neurosciences, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Naroa Ibarra-Aizpurua
- Deparment of Neurosciences, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Elena Alberdi
- Deparment of Neurosciences, University of the Basque Country (UPV/EHU), Leioa, Spain; Achucarro Basque Center for Neuroscience, Leioa, Spain; Centro de Investigación en Red de Enfermedades Neurodegenerativas (CIBERNED), Leioa, Spain
| | - Alberto Pérez-Samartín
- Deparment of Neurosciences, University of the Basque Country (UPV/EHU), Leioa, Spain; Achucarro Basque Center for Neuroscience, Leioa, Spain; Centro de Investigación en Red de Enfermedades Neurodegenerativas (CIBERNED), Leioa, Spain
| | - Carlos Matute
- Deparment of Neurosciences, University of the Basque Country (UPV/EHU), Leioa, Spain; Achucarro Basque Center for Neuroscience, Leioa, Spain; Centro de Investigación en Red de Enfermedades Neurodegenerativas (CIBERNED), Leioa, Spain.
| | - María Victoria Sánchez-Gómez
- Deparment of Neurosciences, University of the Basque Country (UPV/EHU), Leioa, Spain; Achucarro Basque Center for Neuroscience, Leioa, Spain; Centro de Investigación en Red de Enfermedades Neurodegenerativas (CIBERNED), Leioa, Spain.
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10
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Manterola A, Bernal-Chico A, Cipriani R, Ruiz A, Pérez-Samartín A, Moreno-Rodríguez M, Hsu KL, Cravatt BF, Brown JM, Rodríguez-Puertas R, Matute C, Mato S. Re-examining the potential of targeting ABHD6 in multiple sclerosis: Efficacy of systemic and peripherally restricted inhibitors in experimental autoimmune encephalomyelitis. Neuropharmacology 2018; 141:181-191. [DOI: 10.1016/j.neuropharm.2018.08.038] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 07/30/2018] [Accepted: 08/28/2018] [Indexed: 12/12/2022]
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Cisneros-Mejorado A, Gottlieb M, Ruiz A, Chara JC, Pérez-Samartín A, Marambaud P, Matute C. Blockade and knock-out of CALHM1 channels attenuate ischemic brain damage. J Cereb Blood Flow Metab 2018; 38:1060-1069. [PMID: 28597712 PMCID: PMC5999001 DOI: 10.1177/0271678x17713587] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Overactivation of purinergic receptors during cerebral ischemia results in a massive release of neurotransmitters, including adenosine triphosphate (ATP), to the extracellular space which leads to cell death. Some hypothetical pathways of ATP release are large ion channels, such as calcium homeostasis modulator 1 (CALHM1), a membrane ion channel that can permeate ATP. Since this transmitter contributes to postischemic brain damage, we hypothesized that CALHM1 activation may be a relevant target to attenuate stroke injury. Here, we analyzed the contribution of CALHM1 to postanoxic depolarization after ischemia in cultured neurons and in cortical slices. We observed that the onset of postanoxic currents in neurons in those preparations was delayed after its blockade with ruthenium red or silencing of Calhm1 gene by short hairpin RNA, as well as in slices from CALHM1 knockout mice. Subsequently, we used transient middle cerebral artery occlusion and found that ruthenium red, a blocker of CALHM1, or the lack of CALHM1, substantially attenuated the motor symptoms and reduced significantly the infarct volume. These results show that CALHM1 channels mediate postanoxic depolarization in neurons and brain damage after ischemia. Therefore, targeting CALHM1 may have a high therapeutic potential for treating brain damage after ischemia.
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Affiliation(s)
- Abraham Cisneros-Mejorado
- 1 Achucarro Basque Center for Neuroscience, Departamento de Neurociencias and CIBERNED, Universidad del País Vasco (UPV/EHU), Leioa, Spain.,2 Neurotek-UPV/EHU, Parque Tecnológico de Bizkaia, Zamudio, Spain
| | - Miroslav Gottlieb
- 1 Achucarro Basque Center for Neuroscience, Departamento de Neurociencias and CIBERNED, Universidad del País Vasco (UPV/EHU), Leioa, Spain.,3 Institute of Neurobiology, Slovak Academy of Sciences, Kosice, Slovak Republic
| | - Asier Ruiz
- 1 Achucarro Basque Center for Neuroscience, Departamento de Neurociencias and CIBERNED, Universidad del País Vasco (UPV/EHU), Leioa, Spain.,2 Neurotek-UPV/EHU, Parque Tecnológico de Bizkaia, Zamudio, Spain
| | - Juan C Chara
- 1 Achucarro Basque Center for Neuroscience, Departamento de Neurociencias and CIBERNED, Universidad del País Vasco (UPV/EHU), Leioa, Spain.,2 Neurotek-UPV/EHU, Parque Tecnológico de Bizkaia, Zamudio, Spain
| | - Alberto Pérez-Samartín
- 1 Achucarro Basque Center for Neuroscience, Departamento de Neurociencias and CIBERNED, Universidad del País Vasco (UPV/EHU), Leioa, Spain.,2 Neurotek-UPV/EHU, Parque Tecnológico de Bizkaia, Zamudio, Spain
| | | | - Carlos Matute
- 1 Achucarro Basque Center for Neuroscience, Departamento de Neurociencias and CIBERNED, Universidad del País Vasco (UPV/EHU), Leioa, Spain.,2 Neurotek-UPV/EHU, Parque Tecnológico de Bizkaia, Zamudio, Spain
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12
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Pérez-Samartín A, Garay E, Moctezuma JPH, Cisneros-Mejorado A, Sánchez-Gómez MV, Martel-Gallegos G, Robles-Martínez L, Canedo-Antelo M, Matute C, Arellano RO. Inwardly Rectifying K + Currents in Cultured Oligodendrocytes from Rat Optic Nerve are Insensitive to pH. Neurochem Res 2017; 42:2443-2455. [PMID: 28345117 DOI: 10.1007/s11064-017-2242-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 12/29/2016] [Revised: 03/14/2017] [Accepted: 03/17/2017] [Indexed: 10/25/2022]
Abstract
Inwardly rectifying K+ (Kir) channel expression signals at an advanced stage of maturation during oligodendroglial differentiation. Knocking down their expression halts the generation of myelin and produces severe abnormalities in the central nervous system. Kir4.1 is the main subunit involved in the tetrameric structure of Kir channels in glial cells; however, the precise composition of Kir channels expressed in oligodendrocytes (OLs) remains partially unknown, as participation of other subunits has been proposed. Kir channels are sensitive to H+; thus, intracellular acidification produces Kir current inhibition. Since Kir subunits have differential sensitivity to H+, we studied the effect of intracellular acidification on Kir currents expressed in cultured OLs derived from optic nerves of 12-day-old rats. Unexpectedly, Kir currents in OLs (2-4 DIV) did not change within the pH range of 8.0-5.0, as observed when using standard whole-cell voltage-clamp recording or when preserving cytoplasmic components with the perforated patch-clamp technique. In contrast, low pH inhibited astrocyte Kir currents, which was consistent with the involvement of the Kir4.1 subunit. The H+-insensitivity expressed in OL Kir channels was not intrinsic because Kir cloning showed no difference in the sequence reported for the Kir4.1, Kir2.1, or Kir5.1 subunits. Moreover, when Kir channels were heterologously expressed in Xenopus oocytes they behaved as expected in their general properties and sensitivity to H+. It is therefore concluded that Kir channel H+-sensitivity in OLs is modulated through an extrinsic mechanism, probably by association with a modulatory component or by posttranslational modifications.
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Affiliation(s)
- Alberto Pérez-Samartín
- Achucarro Basque Center for Neuroscience, Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, Departamento de Neurociencias, Universidad del País Vasco, 48940, Leioa, Vizcaya, Spain
| | - Edith Garay
- Laboratorio de Neurofisiología Celular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, Juriquilla, 76230, Querétaro, Mexico
| | - Juan Pablo H Moctezuma
- Laboratorio de Neurofisiología Celular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, Juriquilla, 76230, Querétaro, Mexico
| | - Abraham Cisneros-Mejorado
- Laboratorio de Neurofisiología Celular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, Juriquilla, 76230, Querétaro, Mexico
| | - María Victoria Sánchez-Gómez
- Achucarro Basque Center for Neuroscience, Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, Departamento de Neurociencias, Universidad del País Vasco, 48940, Leioa, Vizcaya, Spain
| | - Guadalupe Martel-Gallegos
- Laboratorio de Neurofisiología Celular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, Juriquilla, 76230, Querétaro, Mexico
| | - Leticia Robles-Martínez
- Laboratorio de Neurofisiología Celular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, Juriquilla, 76230, Querétaro, Mexico
| | - Manuel Canedo-Antelo
- Achucarro Basque Center for Neuroscience, Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, Departamento de Neurociencias, Universidad del País Vasco, 48940, Leioa, Vizcaya, Spain
| | - Carlos Matute
- Achucarro Basque Center for Neuroscience, Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, Departamento de Neurociencias, Universidad del País Vasco, 48940, Leioa, Vizcaya, Spain.
| | - Rogelio O Arellano
- Laboratorio de Neurofisiología Celular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, Juriquilla, 76230, Querétaro, Mexico.
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M De la Fuente I, Malaina I, Pérez-Samartín A, Boyano MD, Pérez-Yarza G, Bringas C, Villarroel Á, Fedetz M, Arellano R, Cortes JM, Martínez L. Dynamic properties of calcium-activated chloride currents in Xenopus laevis oocytes. Sci Rep 2017; 7:41791. [PMID: 28198817 PMCID: PMC5304176 DOI: 10.1038/srep41791] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 12/30/2016] [Indexed: 11/18/2022] Open
Abstract
Chloride is the most abundant permeable anion in the cell, and numerous studies in the last two decades highlight the great importance and broad physiological role of chloride currents mediated anion transport. They participate in a multiplicity of key processes, as for instance, the regulation of electrical excitability, apoptosis, cell cycle, epithelial secretion and neuronal excitability. In addition, dysfunction of Cl− channels is involved in a variety of human diseases such as epilepsy, osteoporosis and different cancer types. Historically, chloride channels have been of less interest than the cation channels. In fact, there seems to be practically no quantitative studies of the dynamics of chloride currents. Here, for the first time, we have quantitatively studied experimental calcium-activated chloride fluxes belonging to Xenopus laevis oocytes, and the main results show that the experimental Cl− currents present an informational structure characterized by highly organized data sequences, long-term memory properties and inherent “crossover” dynamics in which persistent correlations arise at short time intervals, while anti-persistent behaviors become dominant in long time intervals. Our work sheds some light on the understanding of the informational properties of ion currents, a key element to elucidate the physiological functional coupling with the integrative dynamics of metabolic processes.
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Affiliation(s)
- Ildefonso M De la Fuente
- Department of Nutrition, CEBAS-CSIC Institute, Espinardo University Campus, Murcia, Spain.,Department of Mathematics, Faculty of Science and Technology, University of the Basque Country, UPV/EHU, Leioa, Spain
| | - Iker Malaina
- Department of Mathematics, Faculty of Science and Technology, University of the Basque Country, UPV/EHU, Leioa, Spain
| | - Alberto Pérez-Samartín
- Department of Neurosciences, Faculty of Medicine and Dentistry, University of the Basque Country, UPV/EHU, Leioa, Spain
| | - María Dolores Boyano
- Department of Cell Biology and Histology, Faculty of Medicine and Dentistry, University of the Basque Country, UPV/EHU, Leioa, Spain
| | - Gorka Pérez-Yarza
- Department of Cell Biology and Histology, Faculty of Medicine and Dentistry, University of the Basque Country, UPV/EHU, Leioa, Spain
| | - Carlos Bringas
- Department of Cell Biology and Histology, Faculty of Medicine and Dentistry, University of the Basque Country, UPV/EHU, Leioa, Spain
| | - Álvaro Villarroel
- Biophysics Unit, CSIC, University of the Basque Country, UPV/EHU, Leioa, Spain
| | - María Fedetz
- Department of Biochemistry and Pharmacology, Institute of Parasitology and Biomedicine "López-Neyra", CSIC, Granada, Spain
| | - Rogelio Arellano
- Laboratory of Cellular Neurophysiology, Neurobiology Institute, UNAM, Querétaro, México
| | - Jesus M Cortes
- Department of Cell Biology and Histology, Faculty of Medicine and Dentistry, University of the Basque Country, UPV/EHU, Leioa, Spain.,BioCruces Health Research Institute, Cruces University Hospital, Barakaldo, Spain.,IKERBASQUE: The Basque Foundation for Science, Bilbao, Spain
| | - Luis Martínez
- Department of Mathematics, Faculty of Science and Technology, University of the Basque Country, UPV/EHU, Leioa, Spain
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Abiega O, Beccari S, Diaz-Aparicio I, Nadjar A, Layé S, Leyrolle Q, Gómez-Nicola D, Domercq M, Pérez-Samartín A, Sánchez-Zafra V, Paris I, Valero J, Savage JC, Hui CW, Tremblay MÈ, Deudero JJP, Brewster AL, Anderson AE, Zaldumbide L, Galbarriatu L, Marinas A, Vivanco MDM, Matute C, Maletic-Savatic M, Encinas JM, Sierra A. Correction: Neuronal Hyperactivity Disturbs ATP Microgradients, Impairs Microglial Motility, and Reduces Phagocytic Receptor Expression Triggering Apoptosis/Microglial Phagocytosis Uncoupling. PLoS Biol 2016; 14:e1002554. [PMID: 27649285 PMCID: PMC5029941 DOI: 10.1371/journal.pbio.1002554] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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15
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Saab AS, Tzvetavona ID, Trevisiol A, Baltan S, Dibaj P, Kusch K, Möbius W, Goetze B, Jahn HM, Huang W, Steffens H, Schomburg ED, Pérez-Samartín A, Pérez-Cerdá F, Bakhtiari D, Matute C, Löwel S, Griesinger C, Hirrlinger J, Kirchhoff F, Nave KA. Oligodendroglial NMDA Receptors Regulate Glucose Import and Axonal Energy Metabolism. Neuron 2016; 91:119-32. [PMID: 27292539 DOI: 10.1016/j.neuron.2016.05.016] [Citation(s) in RCA: 315] [Impact Index Per Article: 39.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 03/11/2016] [Accepted: 05/05/2016] [Indexed: 11/17/2022]
Abstract
Oligodendrocytes make myelin and support axons metabolically with lactate. However, it is unknown how glucose utilization and glycolysis are adapted to the different axonal energy demands. Spiking axons release glutamate and oligodendrocytes express NMDA receptors of unknown function. Here we show that the stimulation of oligodendroglial NMDA receptors mobilizes glucose transporter GLUT1, leading to its incorporation into the myelin compartment in vivo. When myelinated optic nerves from conditional NMDA receptor mutants are challenged with transient oxygen-glucose deprivation, they show a reduced functional recovery when returned to oxygen-glucose but are indistinguishable from wild-type when provided with oxygen-lactate. Moreover, the functional integrity of isolated optic nerves, which are electrically silent, is extended by preincubation with NMDA, mimicking axonal activity, and shortened by NMDA receptor blockers. This reveals a novel aspect of neuronal energy metabolism in which activity-dependent glutamate release enhances oligodendroglial glucose uptake and glycolytic support of fast spiking axons.
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Affiliation(s)
- Aiman S Saab
- Max Planck Institute of Experimental Medicine, Department of Neurogenetics, Göttingen 37075, Germany; Center for Integrative Physiology and Molecular Medicine, Molecular Physiology, University of Saarland, Homburg 66421, Germany; University of Zurich, Institute of Pharmacology and Toxicology, 8057 Zurich, Switzerland
| | - Iva D Tzvetavona
- Max Planck Institute of Experimental Medicine, Department of Neurogenetics, Göttingen 37075, Germany
| | - Andrea Trevisiol
- Max Planck Institute of Experimental Medicine, Department of Neurogenetics, Göttingen 37075, Germany
| | - Selva Baltan
- Lerner Research Institute, Cleveland Clinic, Department of Neurosciences, Cleveland, OH 44195, USA
| | - Payam Dibaj
- Max Planck Institute of Experimental Medicine, Department of Neurogenetics, Göttingen 37075, Germany
| | - Kathrin Kusch
- Max Planck Institute of Experimental Medicine, Department of Neurogenetics, Göttingen 37075, Germany
| | - Wiebke Möbius
- Max Planck Institute of Experimental Medicine, Department of Neurogenetics, Göttingen 37075, Germany; Center Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), 37073 Göttingen, Germany
| | - Bianka Goetze
- Bernstein Focus for Neurotechnology (BFNT) and School of Biology, Department of Systems Neuroscience, University of Göttingen, 37075 Göttingen, Germany
| | - Hannah M Jahn
- Max Planck Institute of Experimental Medicine, Department of Neurogenetics, Göttingen 37075, Germany; Center for Integrative Physiology and Molecular Medicine, Molecular Physiology, University of Saarland, Homburg 66421, Germany
| | - Wenhui Huang
- Max Planck Institute of Experimental Medicine, Department of Neurogenetics, Göttingen 37075, Germany; Center for Integrative Physiology and Molecular Medicine, Molecular Physiology, University of Saarland, Homburg 66421, Germany
| | - Heinz Steffens
- Institute of Physiology, University of Göttingen, 37073 Göttingen, Germany; Max Planck Institute for Biophysical Chemistry, Department of NanoBiophotonics, 37077 Göttingen, Germany
| | - Eike D Schomburg
- Institute of Physiology, University of Göttingen, 37073 Göttingen, Germany
| | - Alberto Pérez-Samartín
- Universidad del País Vasco, CIBERNED and Departamento de Neurociencias and Achucarro Basque Center for Neuroscience, Leioa 48940, Spain
| | - Fernando Pérez-Cerdá
- Universidad del País Vasco, CIBERNED and Departamento de Neurociencias and Achucarro Basque Center for Neuroscience, Leioa 48940, Spain
| | - Davood Bakhtiari
- Center Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), 37073 Göttingen, Germany; Department of NMR Based Structural Biology, Max Planck Institute for Biophysical Chemistry, 37077 Göttingen, Germany
| | - Carlos Matute
- Universidad del País Vasco, CIBERNED and Departamento de Neurociencias and Achucarro Basque Center for Neuroscience, Leioa 48940, Spain
| | - Siegrid Löwel
- Bernstein Focus for Neurotechnology (BFNT) and School of Biology, Department of Systems Neuroscience, University of Göttingen, 37075 Göttingen, Germany
| | - Christian Griesinger
- Center Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), 37073 Göttingen, Germany; Department of NMR Based Structural Biology, Max Planck Institute for Biophysical Chemistry, 37077 Göttingen, Germany
| | - Johannes Hirrlinger
- Max Planck Institute of Experimental Medicine, Department of Neurogenetics, Göttingen 37075, Germany; Carl-Ludwig-Institute for Physiology, Faculty of Medicine, University of Leipzig, 04103 Leipzig, Germany
| | - Frank Kirchhoff
- Max Planck Institute of Experimental Medicine, Department of Neurogenetics, Göttingen 37075, Germany; Center for Integrative Physiology and Molecular Medicine, Molecular Physiology, University of Saarland, Homburg 66421, Germany; Center Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), 37073 Göttingen, Germany.
| | - Klaus-Armin Nave
- Max Planck Institute of Experimental Medicine, Department of Neurogenetics, Göttingen 37075, Germany; Center Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), 37073 Göttingen, Germany.
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Abiega O, Beccari S, Diaz-Aparicio I, Nadjar A, Layé S, Leyrolle Q, Gómez-Nicola D, Domercq M, Pérez-Samartín A, Sánchez-Zafra V, Paris I, Valero J, Savage JC, Hui CW, Tremblay MÈ, Deudero JJP, Brewster AL, Anderson AE, Zaldumbide L, Galbarriatu L, Marinas A, Vivanco MDM, Matute C, Maletic-Savatic M, Encinas JM, Sierra A. Neuronal Hyperactivity Disturbs ATP Microgradients, Impairs Microglial Motility, and Reduces Phagocytic Receptor Expression Triggering Apoptosis/Microglial Phagocytosis Uncoupling. PLoS Biol 2016; 14:e1002466. [PMID: 27228556 PMCID: PMC4881984 DOI: 10.1371/journal.pbio.1002466] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 04/21/2016] [Indexed: 12/24/2022] Open
Abstract
Phagocytosis is essential to maintain tissue homeostasis in a large number of inflammatory and autoimmune diseases, but its role in the diseased brain is poorly explored. Recent findings suggest that in the adult hippocampal neurogenic niche, where the excess of newborn cells undergo apoptosis in physiological conditions, phagocytosis is efficiently executed by surveillant, ramified microglia. To test whether microglia are efficient phagocytes in the diseased brain as well, we confronted them with a series of apoptotic challenges and discovered a generalized response. When challenged with excitotoxicity in vitro (via the glutamate agonist NMDA) or inflammation in vivo (via systemic administration of bacterial lipopolysaccharides or by omega 3 fatty acid deficient diets), microglia resorted to different strategies to boost their phagocytic efficiency and compensate for the increased number of apoptotic cells, thus maintaining phagocytosis and apoptosis tightly coupled. Unexpectedly, this coupling was chronically lost in a mouse model of mesial temporal lobe epilepsy (MTLE) as well as in hippocampal tissue resected from individuals with MTLE, a major neurological disorder characterized by seizures, excitotoxicity, and inflammation. Importantly, the loss of phagocytosis/apoptosis coupling correlated with the expression of microglial proinflammatory, epileptogenic cytokines, suggesting its contribution to the pathophysiology of epilepsy. The phagocytic blockade resulted from reduced microglial surveillance and apoptotic cell recognition receptor expression and was not directly mediated by signaling through microglial glutamate receptors. Instead, it was related to the disruption of local ATP microgradients caused by the hyperactivity of the hippocampal network, at least in the acute phase of epilepsy. Finally, the uncoupling led to an accumulation of apoptotic newborn cells in the neurogenic niche that was due not to decreased survival but to delayed cell clearance after seizures. These results demonstrate that the efficiency of microglial phagocytosis critically affects the dynamics of apoptosis and urge to routinely assess the microglial phagocytic efficiency in neurodegenerative disorders. Phagocytosis by microglia is tightly coupled to apoptosis, swiftly removing apoptotic cells and actively maintaining tissue homeostasis, but the neuronal hyperactivity associated with epilepsy disrupts the ATP gradients that drive phagocytosis, leading to the accumulation of apoptotic cells and inflammation. Phagocytosis, the engulfment and digestion of cellular debris, is at the core of the regenerative response of the damaged tissue, because it prevents the spillover of toxic intracellular contents and is actively anti-inflammatory. In the brain, the professional phagocytes are microglia, whose dynamic processes rapidly engulf and degrade cells undergoing apoptosis—programmed cell death—in physiological conditions. Thus, microglia hold the key to brain regeneration, but their efficiency as phagocytes in the diseased brain is only presumed. Here, we have discovered a generalized response of microglia to apoptotic challenge induced by excitotoxicity and inflammation, in which they boost their phagocytic efficiency to account for the increase in apoptosis. To our surprise, this apoptosis/microglial phagocytosis coupling was lost in the hippocampus from human and experimental mesial temporal lobe epilepsy (MTLE), a major neurodegenerative disorder characterized by excitotoxicity, inflammation, and seizures. This uncoupling was due to widespread ATP release during neuronal hyperactivity, which “blinded” microglia to the ATP microgradients released by apoptotic cells as “find-me” signals. The impairment of phagocytosis led to the accumulation of apoptotic cells and the build-up of a detrimental inflammatory reaction. Our data advocates for systematic assessment of the efficiency of microglial phagocytosis in brain disorders.
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Affiliation(s)
- Oihane Abiega
- Achucarro Basque Center for Neuroscience, Bizkaia Science and Technology Park, Zamudio, Spain
- University of the Basque Country, Leioa, Spain
| | - Sol Beccari
- Achucarro Basque Center for Neuroscience, Bizkaia Science and Technology Park, Zamudio, Spain
- University of the Basque Country, Leioa, Spain
| | - Irune Diaz-Aparicio
- Achucarro Basque Center for Neuroscience, Bizkaia Science and Technology Park, Zamudio, Spain
- University of the Basque Country, Leioa, Spain
| | | | - Sophie Layé
- Université Bordeaux Segalen, Bordeaux, France
| | | | - Diego Gómez-Nicola
- Centre for Biological Sciences, University of Southampton, Southampton, United Kingdom
| | - María Domercq
- Achucarro Basque Center for Neuroscience, Bizkaia Science and Technology Park, Zamudio, Spain
- University of the Basque Country, Leioa, Spain
| | - Alberto Pérez-Samartín
- Achucarro Basque Center for Neuroscience, Bizkaia Science and Technology Park, Zamudio, Spain
- University of the Basque Country, Leioa, Spain
| | - Víctor Sánchez-Zafra
- Achucarro Basque Center for Neuroscience, Bizkaia Science and Technology Park, Zamudio, Spain
- University of the Basque Country, Leioa, Spain
| | - Iñaki Paris
- Achucarro Basque Center for Neuroscience, Bizkaia Science and Technology Park, Zamudio, Spain
- University of the Basque Country, Leioa, Spain
| | - Jorge Valero
- Achucarro Basque Center for Neuroscience, Bizkaia Science and Technology Park, Zamudio, Spain
- University of the Basque Country, Leioa, Spain
- Ikerbasque Foundation, Bilbao, Spain
| | - Julie C. Savage
- Centre de recherche du CHU de Québec, Axe Neurosciences, Québec, Canada
- Université Laval, Département de médecine moléculaire, Québec, Canada
| | - Chin-Wai Hui
- Centre de recherche du CHU de Québec, Axe Neurosciences, Québec, Canada
- Université Laval, Département de médecine moléculaire, Québec, Canada
| | - Marie-Ève Tremblay
- Centre de recherche du CHU de Québec, Axe Neurosciences, Québec, Canada
- Université Laval, Département de médecine moléculaire, Québec, Canada
| | - Juan J. P. Deudero
- Baylor College of Medicine, The Jan and Dan Duncan Neurological Research Institute at Texas Children’s Hospital, Houston, Texas, United States of America
| | - Amy L. Brewster
- Baylor College of Medicine, The Jan and Dan Duncan Neurological Research Institute at Texas Children’s Hospital, Houston, Texas, United States of America
| | - Anne E. Anderson
- Baylor College of Medicine, The Jan and Dan Duncan Neurological Research Institute at Texas Children’s Hospital, Houston, Texas, United States of America
| | | | | | | | | | - Carlos Matute
- Achucarro Basque Center for Neuroscience, Bizkaia Science and Technology Park, Zamudio, Spain
- University of the Basque Country, Leioa, Spain
| | | | - Juan M. Encinas
- Achucarro Basque Center for Neuroscience, Bizkaia Science and Technology Park, Zamudio, Spain
- University of the Basque Country, Leioa, Spain
- Baylor College of Medicine, The Jan and Dan Duncan Neurological Research Institute at Texas Children’s Hospital, Houston, Texas, United States of America
| | - Amanda Sierra
- Achucarro Basque Center for Neuroscience, Bizkaia Science and Technology Park, Zamudio, Spain
- University of the Basque Country, Leioa, Spain
- Baylor College of Medicine, The Jan and Dan Duncan Neurological Research Institute at Texas Children’s Hospital, Houston, Texas, United States of America
- * E-mail:
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Arellano RO, Sánchez-Gómez MV, Alberdi E, Canedo-Antelo M, Chara JC, Palomino A, Pérez-Samartín A, Matute C. Axon-to-Glia Interaction Regulates GABAA Receptor Expression in Oligodendrocytes. Mol Pharmacol 2015; 89:63-74. [PMID: 26538574 DOI: 10.1124/mol.115.100594] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 11/03/2015] [Indexed: 01/02/2023] Open
Abstract
Myelination requires oligodendrocyte-neuron communication, and both neurotransmitters and contact interactions are essential for this process. Oligodendrocytes are endowed with neurotransmitter receptors whose expression levels and properties may change during myelination. However, only scant information is available about the extent and timing of these changes or how they are regulated by oligodendrocyte-neuron interactions. Here, we used electrophysiology to study the expression of ionotropic GABA, glutamate, and ATP receptors in oligodendrocytes derived from the optic nerve and forebrain cultured either alone or in the presence of dorsal root ganglion neurons. We observed that oligodendrocytes from both regions responded to these transmitters at 1 day in culture. After the first day in culture, however, GABA sensitivity diminished drastically to less than 10%, while that of glutamate and ATP remained constant. In contrast, the GABA response amplitude was sustained and remained stable in oligodendrocytes cocultured with dorsal root ganglion neurons. Immunochemistry and pharmacological properties of the responses indicated that they were mediated by distinctive GABAA receptors and that in coculture with neurons, the oligodendrocytes bearing the receptors were those in direct contact with axons. These results reveal that GABAA receptor regulation in oligodendrocytes is driven by axonal cues and that GABA signaling may play a role in myelination and/or during axon-glia recognition.
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Affiliation(s)
- Rogelio O Arellano
- Achucarro Basque Center for Neuroscience, Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, and Departamento de Neurociencias, Universidad del País Vasco, Leioa, Spain (R.O.A., M.V.S.-G., E.A., M.C.-A., J.C.C., A.P., A.P.-S., C.M.); and Instituto de Neurobiología, Laboratorio de Neurofisiología Celular, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, México (R.O.A.)
| | - María Victoria Sánchez-Gómez
- Achucarro Basque Center for Neuroscience, Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, and Departamento de Neurociencias, Universidad del País Vasco, Leioa, Spain (R.O.A., M.V.S.-G., E.A., M.C.-A., J.C.C., A.P., A.P.-S., C.M.); and Instituto de Neurobiología, Laboratorio de Neurofisiología Celular, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, México (R.O.A.)
| | - Elena Alberdi
- Achucarro Basque Center for Neuroscience, Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, and Departamento de Neurociencias, Universidad del País Vasco, Leioa, Spain (R.O.A., M.V.S.-G., E.A., M.C.-A., J.C.C., A.P., A.P.-S., C.M.); and Instituto de Neurobiología, Laboratorio de Neurofisiología Celular, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, México (R.O.A.)
| | - Manuel Canedo-Antelo
- Achucarro Basque Center for Neuroscience, Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, and Departamento de Neurociencias, Universidad del País Vasco, Leioa, Spain (R.O.A., M.V.S.-G., E.A., M.C.-A., J.C.C., A.P., A.P.-S., C.M.); and Instituto de Neurobiología, Laboratorio de Neurofisiología Celular, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, México (R.O.A.)
| | - Juan Carlos Chara
- Achucarro Basque Center for Neuroscience, Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, and Departamento de Neurociencias, Universidad del País Vasco, Leioa, Spain (R.O.A., M.V.S.-G., E.A., M.C.-A., J.C.C., A.P., A.P.-S., C.M.); and Instituto de Neurobiología, Laboratorio de Neurofisiología Celular, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, México (R.O.A.)
| | - Aitor Palomino
- Achucarro Basque Center for Neuroscience, Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, and Departamento de Neurociencias, Universidad del País Vasco, Leioa, Spain (R.O.A., M.V.S.-G., E.A., M.C.-A., J.C.C., A.P., A.P.-S., C.M.); and Instituto de Neurobiología, Laboratorio de Neurofisiología Celular, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, México (R.O.A.)
| | - Alberto Pérez-Samartín
- Achucarro Basque Center for Neuroscience, Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, and Departamento de Neurociencias, Universidad del País Vasco, Leioa, Spain (R.O.A., M.V.S.-G., E.A., M.C.-A., J.C.C., A.P., A.P.-S., C.M.); and Instituto de Neurobiología, Laboratorio de Neurofisiología Celular, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, México (R.O.A.)
| | - Carlos Matute
- Achucarro Basque Center for Neuroscience, Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, and Departamento de Neurociencias, Universidad del País Vasco, Leioa, Spain (R.O.A., M.V.S.-G., E.A., M.C.-A., J.C.C., A.P., A.P.-S., C.M.); and Instituto de Neurobiología, Laboratorio de Neurofisiología Celular, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, México (R.O.A.)
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Cisneros-Mejorado A, Gottlieb M, Cavaliere F, Magnus T, Koch-Nolte F, Scemes E, Pérez-Samartín A, Matute C. Blockade of P2X7 receptors or pannexin-1 channels similarly attenuates postischemic damage. J Cereb Blood Flow Metab 2015; 35:843-50. [PMID: 25605289 PMCID: PMC4420860 DOI: 10.1038/jcbfm.2014.262] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Revised: 12/19/2014] [Accepted: 12/22/2014] [Indexed: 11/09/2022]
Abstract
The role of P2X7 receptors and pannexin-1 channels in ischemic damage remains controversial. Here, we analyzed their contribution to postanoxic depolarization after ischemia in cultured neurons and in brain slices. We observed that pharmacological blockade of P2X7 receptors or pannexin-1 channels delayed the onset of postanoxic currents and reduced their slope, and that simultaneous inhibition did not further enhance the effects of blocking either one. These results were confirmed in acute cortical slices from P2X7 and pannexin-1 knockout mice. Oxygen-glucose deprivation in cortical organotypic cultures caused neuronal death that was reduced with P2X7 and pannexin-1 blockers as well as in organotypic cultures derived from mice lacking P2X7 and pannexin 1. Subsequently, we used transient middle cerebral artery occlusion to monitor the neuroprotective effect of those drugs in vivo. We found that P2X7 and pannexin-1 antagonists, and their ablation in knockout mice, substantially attenuated the motor symptoms and reduced the infarct volume to ~50% of that in vehicle-treated or wild-type animals. These results show that P2X7 receptors and pannexin-1 channels are major mediators of postanoxic depolarization in neurons and of brain damage after ischemia, and that they operate in the same deleterious signaling cascade leading to neuronal and tissue demise.
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Affiliation(s)
- Abraham Cisneros-Mejorado
- Achucarro Basque Center for Neuroscience, Departamento de Neurociencias and CIBERNED, Universidad del País Vasco (UPV/EHU), Leioa, Spain
| | - Miroslav Gottlieb
- 1] Achucarro Basque Center for Neuroscience, Departamento de Neurociencias and CIBERNED, Universidad del País Vasco (UPV/EHU), Leioa, Spain [2] Institute of Neurobiology, Slovak Academy of Sciences, Kosice, Slovak Republic
| | - Fabio Cavaliere
- 1] Achucarro Basque Center for Neuroscience, Departamento de Neurociencias and CIBERNED, Universidad del País Vasco (UPV/EHU), Leioa, Spain [2] Neurotek-UPV/EHU, Parque Tecnológico de Bizkaia, Zamudio, Spain
| | - Tim Magnus
- Department of Neurology, University Hospital Hamburg, Hamburg, Germany
| | | | - Eliana Scemes
- Dominick P. Purpura Department of Neurosciences, Albert Einstein College of Medicine, New York, New York, USA
| | - Alberto Pérez-Samartín
- 1] Achucarro Basque Center for Neuroscience, Departamento de Neurociencias and CIBERNED, Universidad del País Vasco (UPV/EHU), Leioa, Spain [2] Neurotek-UPV/EHU, Parque Tecnológico de Bizkaia, Zamudio, Spain
| | - Carlos Matute
- 1] Achucarro Basque Center for Neuroscience, Departamento de Neurociencias and CIBERNED, Universidad del País Vasco (UPV/EHU), Leioa, Spain [2] Neurotek-UPV/EHU, Parque Tecnológico de Bizkaia, Zamudio, Spain
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Bernal-Chico A, Canedo M, Manterola A, Victoria Sánchez-Gómez M, Pérez-Samartín A, Rodríguez-Puertas R, Matute C, Mato S. Blockade of monoacylglycerol lipase inhibits oligodendrocyte excitotoxicity and prevents demyelinationin vivo. Glia 2014; 63:163-76. [DOI: 10.1002/glia.22742] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Accepted: 07/29/2014] [Indexed: 01/09/2023]
Affiliation(s)
- Ana Bernal-Chico
- Department of Neurosciences; School of Medicine, University of the Basque Country-UPV/EHU; Leioa Spain
- Achucarro Basque Center for Neuroscience; Zamudio Spain
| | - Manuel Canedo
- Department of Neurosciences; School of Medicine, University of the Basque Country-UPV/EHU; Leioa Spain
- Achucarro Basque Center for Neuroscience; Zamudio Spain
| | - Andrea Manterola
- Department of Neurosciences; School of Medicine, University of the Basque Country-UPV/EHU; Leioa Spain
| | - María Victoria Sánchez-Gómez
- Department of Neurosciences; School of Medicine, University of the Basque Country-UPV/EHU; Leioa Spain
- Achucarro Basque Center for Neuroscience; Zamudio Spain
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED); Barcelona Spain
| | - Alberto Pérez-Samartín
- Department of Neurosciences; School of Medicine, University of the Basque Country-UPV/EHU; Leioa Spain
- Achucarro Basque Center for Neuroscience; Zamudio Spain
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED); Barcelona Spain
| | - Rafael Rodríguez-Puertas
- Department of Pharmacology; School of Medicine, University of the Basque Country-UPV/EHU; Leioa Spain
| | - Carlos Matute
- Department of Neurosciences; School of Medicine, University of the Basque Country-UPV/EHU; Leioa Spain
- Achucarro Basque Center for Neuroscience; Zamudio Spain
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED); Barcelona Spain
| | - Susana Mato
- Department of Neurosciences; School of Medicine, University of the Basque Country-UPV/EHU; Leioa Spain
- Achucarro Basque Center for Neuroscience; Zamudio Spain
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED); Barcelona Spain
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20
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Soria FN, Pérez-Samartín A, Martin A, Gona KB, Llop J, Szczupak B, Chara JC, Matute C, Domercq M. Extrasynaptic glutamate release through cystine/glutamate antiporter contributes to ischemic damage. J Clin Invest 2014; 124:3645-55. [PMID: 25036707 DOI: 10.1172/jci71886] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Accepted: 05/21/2014] [Indexed: 01/21/2023] Open
Abstract
During brain ischemia, an excessive release of glutamate triggers neuronal death through the overactivation of NMDA receptors (NMDARs); however, the underlying pathways that alter glutamate homeostasis and whether synaptic or extrasynaptic sites are responsible for excess glutamate remain controversial. Here, we monitored ischemia-gated currents in pyramidal cortical neurons in brain slices from rodents in response to oxygen and glucose deprivation (OGD) as a real-time glutamate sensor to identify the source of glutamate release and determined the extent of neuronal damage. Blockade of excitatory amino acid transporters or vesicular glutamate release did not inhibit ischemia-gated currents or neuronal damage after OGD. In contrast, pharmacological inhibition of the cystine/glutamate antiporter dramatically attenuated ischemia-gated currents and cell death after OGD. Compared with control animals, mice lacking a functional cystine/glutamate antiporter exhibited reduced anoxic depolarization and neuronal death in response to OGD. Furthermore, glutamate released by the cystine/glutamate antiporter activated extrasynaptic, but not synaptic, NMDARs, and blockade of extrasynaptic NMDARs reduced ischemia-gated currents and cell damage after OGD. Finally, PET imaging showed increased cystine/glutamate antiporter function in ischemic rats. Altogether, these data suggest that cystine/glutamate antiporter function is increased in ischemia, contributing to elevated extracellular glutamate concentration, overactivation of extrasynaptic NMDARs, and ischemic neuronal death.
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21
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González-Fernández E, Sánchez-Gómez MV, Pérez-Samartín A, Arellano RO, Matute C. A3 Adenosine receptors mediate oligodendrocyte death and ischemic damage to optic nerve. Glia 2013; 62:199-216. [PMID: 24311446 DOI: 10.1002/glia.22599] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [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: 06/13/2013] [Revised: 10/28/2013] [Accepted: 10/28/2013] [Indexed: 11/07/2022]
Abstract
Adenosine receptor activation is involved in myelination and in apoptotic pathways linked to neurodegenerative diseases. In this study, we investigated the effects of adenosine receptor activation in the viability of oligodendrocytes of the rat optic nerve. Selective activation of A3 receptors in pure cultures of oligodendrocytes caused concentration-dependent apoptotic and necrotic death which was preceded by oxidative stress and mitochondrial membrane depolarization. Oligodendrocyte apoptosis induced by A3 receptor activation was caspase-dependent and caspase-independent. In addition to dissociated cultures, incubation of optic nerves ex vivo with adenosine and the A3 receptor agonist 2-CI-IB-MECA(1-[2-Chloro-6-[[(3-iodophenyl)methyl]amino]-9H-purin-9-yl]-1-deoxy-N-methyl-b-D-ribofuranuronamide)-induced caspase-3 activation, oligodendrocyte damage, and myelin loss, effects which were prevented by the presence of caffeine and the A3 receptor antagonist MRS 1220 (N-[9-Chloro-2-(2-furanyl)[1,2,4]-triazolo [1,5-c]quinazolin-5-yl]benzene acetamide). Finally, ischemia-induced injury and functional loss to the optic nerve was attenuated by blocking A3 receptors. Together, these results indicate that adenosine may trigger oligodendrocyte death via activation of A3 receptors and suggest that this mechanism contributes to optic nerve and white matter ischemic damage.
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Affiliation(s)
- Estíbaliz González-Fernández
- CIBERNED, Achucarro Basque Center for Neuroscience and Departamento de Neurociencias, Universidad del País Vasco (UPV/EHU), E-48940, Leioa, Spain
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22
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Lutz SE, González-Fernández E, Ventura JCC, Pérez-Samartín A, Tarassishin L, Negoro H, Patel NK, Suadicani SO, Lee SC, Matute C, Scemes E. Contribution of pannexin1 to experimental autoimmune encephalomyelitis. PLoS One 2013; 8:e66657. [PMID: 23885286 PMCID: PMC3688586 DOI: 10.1371/journal.pone.0066657] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Accepted: 05/08/2013] [Indexed: 11/19/2022] Open
Abstract
Pannexin1 (Panx1) is a plasma membrane channel permeable to relatively large molecules, such as ATP. In the central nervous system (CNS) Panx1 is found in neurons and glia and in the immune system in macrophages and T-cells. We tested the hypothesis that Panx1-mediated ATP release contributes to expression of Experimental Autoimmune Encephalomyelitis (EAE), an animal model for multiple sclerosis, using wild-type (WT) and Panx1 knockout (KO) mice. Panx1 KO mice displayed a delayed onset of clinical signs of EAE and decreased mortality compared to WT mice, but developed as severe symptoms as the surviving WT mice. Spinal cord inflammatory lesions were also reduced in Panx1 KO EAE mice during acute disease. Additionally, pharmacologic inhibition of Panx1 channels with mefloquine (MFQ) reduced severity of acute and chronic EAE when administered before or after onset of clinical signs. ATP release and YoPro uptake were significantly increased in WT mice with EAE as compared to WT non-EAE and reduced in tissues of EAE Panx1 KO mice. Interestingly, we found that the P2X7 receptor was upregulated in the chronic phase of EAE in both WT and Panx1 KO spinal cords. Such increase in receptor expression is likely to counterbalance the decrease in ATP release recorded from Panx1 KO mice and thus contribute to the development of EAE symptoms in these mice. The present study shows that a Panx1 dependent mechanism (ATP release and/or inflammasome activation) contributes to disease progression, and that inhibition of Panx1 using pharmacology or gene disruption delays and attenuates clinical signs of EAE.
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Affiliation(s)
- Sarah E. Lutz
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, New York, United States of America
| | | | | | | | - Leonid Tarassishin
- Department of Pathology, Albert Einstein College of Medicine, Bronx, New York United States of America
| | - Hiromitsu Negoro
- Department of Urology, Albert Einstein College of Medicine, Bronx, New York, United States of America
| | - Naman K. Patel
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, New York, United States of America
| | - Sylvia O. Suadicani
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, New York, United States of America
- Department of Urology, Albert Einstein College of Medicine, Bronx, New York, United States of America
| | - Sunhee C. Lee
- Department of Pathology, Albert Einstein College of Medicine, Bronx, New York United States of America
| | - Carlos Matute
- Departamento de Neurociencias, Universidad del País Vasco, Leioa, Spain
| | - Eliana Scemes
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, New York, United States of America
- * E-mail:
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23
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Affiliation(s)
- Carlos Matute
- Departamento de Neurociencias, Achucarro Basque Center for Neuroscience, and CIBERNED, Universidad del País Vasco, UPV/EHU, E-48940 Leioa, Vizcaya, Spain.
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24
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Arbeloa J, Pérez-Samartín A, Gottlieb M, Matute C. P2X7 receptor blockade prevents ATP excitotoxicity in neurons and reduces brain damage after ischemia. Neurobiol Dis 2011; 45:954-61. [PMID: 22186422 DOI: 10.1016/j.nbd.2011.12.014] [Citation(s) in RCA: 149] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2011] [Revised: 11/09/2011] [Accepted: 12/04/2011] [Indexed: 12/22/2022] Open
Abstract
Overactivation of subtype P2X7 receptors can induce excitotoxic neuronal death by calcium (Ca(2+)) overload. In this study, we characterize the functional properties of P2X7 receptors using electrophysiology and Ca(2+) monitoring in primary cortical neuron cultures and in brain slices. Both electrical responses and Ca(2+) influx induced by ATP and benzoyl-ATP were reduced by Brilliant Blue G (BBG) at concentrations which specifically inhibit P2X7 receptors. In turn, oxygen-glucose deprivation (OGD) caused neuronal death that was reduced with BBG application. OGD in neuron cultures and brain slices generated an inward current, which was delayed and reduced by BBG. To assess the relevance of these in vitro findings, we used middle cerebral artery occlusion in rats as a model of transient focal cerebral ischemia to study the neuroprotective effect of BBG in vivo. Treatment with BBG (twice per day, 30 mg/kg) produced a 60% reduction in the extent of brain damage compared to treatment with vehicle alone. These results show that P2X7 purinergic receptors mediate tissue damage after OGD in neurons and following transient brain ischemia. Therefore, these receptors are a relevant molecular target for the development of new treatments to attenuate brain damage following stroke.
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Affiliation(s)
- Joana Arbeloa
- CIBERNED and Laboratory of Neurobiology, Department of Neurosciences, University of the Basque Country, 48940-Leioa, Spain
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25
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Domercq M, Alberdi E, Sánchez-Gómez MV, Ariz U, Pérez-Samartín A, Matute C. Dual-specific phosphatase-6 (Dusp6) and ERK mediate AMPA receptor-induced oligodendrocyte death. J Biol Chem 2011; 286:11825-36. [PMID: 21300799 DOI: 10.1074/jbc.m110.153049] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Oligodendrocytes, the myelinating cells of the CNS, are highly vulnerable to glutamate excitotoxicity, a mechanism involved in tissue damage in multiple sclerosis. Thus, understanding oligodendrocyte death at the molecular level is important to develop new therapeutic approaches to treat the disease. Here, using microarray analysis and quantitative PCR, we observed that dual-specific phosphatase-6 (Dusp6), an extracellular regulated kinase-specific phosphatase, is up-regulated in oligodendrocyte cultures as well as in optic nerves after AMPA receptor activation. In turn, Dusp6 is overexpressed in optic nerves from multiple sclerosis patients before the appearance of evident damage in this structure. We further analyzed the role of Dusp6 and ERK signaling in excitotoxic oligodendrocyte death and observed that AMPA receptor activation induces a rapid increase in ERK1/2 phosphorylation. Blocking Dusp6 expression, which enhances ERK1/2 phosphorylation, significantly diminished AMPA receptor-induced oligodendrocyte death. In contrast, MAPK/ERK pathway inhibition with UO126 significantly potentiates excitotoxic oligodendrocyte death and increases cytochrome c release, mitochondrial depolarization, and mitochondrial calcium overload produced by AMPA receptor stimulation. Upstream analysis demonstrated that MAPK/ERK signaling alters AMPA receptor properties. Indeed, Dusp6 overexpression as well as incubation with UO126 produced an increase in AMPA receptor-induced inward currents and cytosolic calcium overload. Together, these data suggest that levels of phosphorylated ERK, controlled by Dusp6 phosphatase, regulate glutamate receptor permeability and oligodendroglial excitotoxicity. Therefore, targeting Dusp6 may be a useful strategy to prevent oligodendrocyte death in multiple sclerosis and other diseases involving CNS white matter.
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Affiliation(s)
- Maria Domercq
- Centro de Investigaciones Biomédicas en Red Enfermedades Neurodegenerativas, Universidad del País Vasco, Leioa, Spain
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26
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Alberdi E, Sánchez-Gómez MV, Cavaliere F, Pérez-Samartín A, Zugaza JL, Trullas R, Domercq M, Matute C. Amyloid beta oligomers induce Ca2+ dysregulation and neuronal death through activation of ionotropic glutamate receptors. Cell Calcium 2010; 47:264-72. [PMID: 20061018 DOI: 10.1016/j.ceca.2009.12.010] [Citation(s) in RCA: 258] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2009] [Revised: 12/15/2009] [Accepted: 12/17/2009] [Indexed: 10/20/2022]
Abstract
Amyloid beta (Abeta) oligomers accumulate in brain tissue of Alzheimer disease patients and are related to pathogenesis. The precise mechanisms by which Abeta oligomers cause neurotoxicity remain unresolved. In this study, we investigated the role of ionotropic glutamate receptors on the intracellular Ca2+ overload caused by Abeta. Using rat cortical neurons in culture and entorhinal-hippocampal organotypic slices, we found that Abeta oligomers significantly induced inward currents, intracellular Ca2+ increases and apoptotic cell death through a mechanism requiring NMDA and AMPA receptor activation. The massive entry of Ca2+ through NMDA and AMPA receptors induced by Abeta oligomers caused mitochondrial dysfunction as indicated by mitochondrial Ca2+ overload, oxidative stress and mitochondrial membrane depolarization. Importantly, chronic treatment with nanomolar concentration of Abeta oligomers also induced NMDA- and AMPA receptor-dependent cell death in entorhinal cortex and hippocampal slice cultures. Together, these results indicate that overactivation of NMDA and AMPA receptor, mitochondrial Ca2+ overload and mitochondrial damage underlie the neurotoxicity induced by Abeta oligomers. Hence, drugs that modulate these events can prevent from Abeta damage to neurons in Alzheimer's disease.
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Affiliation(s)
- Elena Alberdi
- Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (CIBERNED), Departamento de Neurociencias, Universidad del País Vasco, E-48940 Leioa, Spain
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27
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Fattorini G, Melone M, Bragina L, Candiracci C, Cozzi A, Pellegrini Giampietro DE, Torres-Ramos M, Pérez-Samartín A, Matute C, Conti F. GLT-1 expression and Glu uptake in rat cerebral cortex are increased by phencyclidine. Glia 2008; 56:1320-7. [PMID: 18615569 DOI: 10.1002/glia.20700] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Using western blottings, microdialysis, and functional assays we tested the hypothesis that phencyclidine (PCP) modifies the expression and function of glutamate (Glu) transporters in the rat frontal cortex. Western blotting studies revealed that administration of PCP (10 mg/kg/day; 7 days) increased significantly the expression of the astrocytic Glu transporter GLT-1/EAAT2. Functional studies showed that PCP increased significantly Na+-dependent Glu uptake in slices and in neuron/astrocyte co-cultures, and microdialysis studies evidenced that PCP treatment reduced basal Glu output. In our experimental conditions, PCP did not induce toxicity. These studies show that PCP increases the expression of GLT-1 in the cerebral cortex, thereby increasing Glu uptake and reducing extracellular [Glu].
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Affiliation(s)
- Giorgia Fattorini
- Dipartimento di Neuroscienze, Università Politecnica delle Marche, Ancona, Italy
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28
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Matute C, Torre I, Pérez-Cerdá F, Pérez-Samartín A, Alberdi E, Etxebarria E, Arranz AM, Ravid R, Rodríguez-Antigüedad A, Sánchez-Gómez M, Domercq M. P2X(7) receptor blockade prevents ATP excitotoxicity in oligodendrocytes and ameliorates experimental autoimmune encephalomyelitis. J Neurosci 2007; 27:9525-33. [PMID: 17728465 PMCID: PMC6673129 DOI: 10.1523/jneurosci.0579-07.2007] [Citation(s) in RCA: 304] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Oligodendrocyte death and demyelination are hallmarks of multiple sclerosis (MS). Here we show that ATP signaling can trigger oligodendrocyte excitotoxicity via activation of calcium-permeable P2X(7) purinergic receptors expressed by these cells. Sustained activation of P2X(7) receptors in vivo causes lesions that are reminiscent of the major features of MS plaques, i.e., demyelination, oligodendrocyte death, and axonal damage. In addition, treatment with P2X(7) antagonists of chronic experimental autoimmune encephalomyelitis (EAE), a model of MS, reduces demyelination and ameliorates the associated neurological symptoms. Together, these results indicate that ATP can kill oligodendrocytes via P2X(7) activation and that this cell death process contributes to EAE. Importantly, P2X(7) expression is elevated in normal-appearing axon tracts in MS patients, suggesting that signaling through this receptor in oligodendrocytes may be enhanced in this disease. Thus, P2X(7) receptor antagonists may be beneficial for the treatment of MS.
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MESH Headings
- Adenosine Triphosphate/toxicity
- Animals
- Animals, Newborn
- Calcium/metabolism
- Cell Survival/drug effects
- Cell Survival/physiology
- Cells, Cultured
- Encephalomyelitis, Autoimmune, Experimental/chemically induced
- Encephalomyelitis, Autoimmune, Experimental/therapy
- Glial Fibrillary Acidic Protein/metabolism
- Glycoproteins
- Humans
- Membrane Potentials/drug effects
- Membrane Potentials/physiology
- Membrane Potentials/radiation effects
- Mice
- Microscopy, Immunoelectron/methods
- Myelin Basic Protein/metabolism
- Myelin-Oligodendrocyte Glycoprotein
- Oligodendroglia/drug effects
- Oligodendroglia/metabolism
- Oligodendroglia/ultrastructure
- Optic Nerve/cytology
- Optic Nerve/pathology
- Optic Nerve/ultrastructure
- Patch-Clamp Techniques/methods
- Peptide Fragments
- Platelet Aggregation Inhibitors
- Purinergic P2 Receptor Antagonists
- Rats
- Rats, Sprague-Dawley
- Receptors, Purinergic P2/physiology
- Receptors, Purinergic P2X7
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Affiliation(s)
- Carlos Matute
- Departamento de Neurociencias, Universidad del País Vasco, 48940 Leioa, Spain.
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29
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Abstract
Glutamate kills neurons by excitotoxicity, which is caused by sustained activation of glutamate receptors. In recent years, it has been shown that glutamate can also be toxic to white matter oligodendrocytes and to myelin by this mechanism. In particular, glutamate receptor-mediated injury to these cells can be triggered by activation of alpha-amino-3-hydroxy-5-methylisoxazole-4-propionic acid, kainate and N-methyl-D-aspartate glutamate receptor types. Thus, these receptor classes, and the intermediaries of the signal cascades they activate, are potential targets for drug development to treat white matter damage in acute and chronic diseases. In addition, alterations of glutamate homeostasis in white matter can determine glutamate injury to oligodendrocytes and myelin. Astrocytes are responsible for most glutamate uptake in synaptic and non-synaptic areas and consequently are the major regulators of glutamate homeostasis. Activated microglia in turn may secrete cytokines and generate radical oxygen species, which impair glutamate uptake and reduce the expression of glutamate transporters. Finally, oligodendrocytes also contribute to glutamate homeostasis. This review aims at summarizing the current knowledge about the mechanisms leading to oligodendrocyte cell death and demyelination as a consequence of alterations in glutamate signalling, and their clinical relevance to disease. In addition, we show evidence that oligodendrocytes can also be killed by ATP acting at P2X receptors. A thorough understanding of how oligodendrocytes and myelin are damaged by excitotoxicity will generate knowledge that can lead to improved therapeutic strategies to protect white matter.
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Affiliation(s)
- Carlos Matute
- Departamento de Neurociencias, Universidad del País Vasco, Leioa, and Neurotek-UPV/EHU, Parque Tecnológico deBizkaia, Zamudio, Spain. carlos.,
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30
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Abstract
Glutamate uptake is crucial to terminate glutamate signaling and to prevent excitotoxicity. The present study describes the expression of functional glutamate transporters GLAST and GLT-1 in oligodendrocytes by means of electrophysiology, uptake assays, and immunocytochemistry. Inhibition of glutamate uptake, both in oligodendrocyte cultures and in isolated optic nerves, increases glutamate levels and causes oligodendrocyte excitotoxicity, which is prevented by alpha-amino-3-hydroxy-5-methylisoxazole-4-propionic acid (AMPA) and kainate receptor antagonists. Furthermore, glutamate transporter inhibitors or antisense oligonucleotides applied onto the optic nerve in vivo lead to oligodendroglial loss, massive demyelination, and severe axonal damage. Overall, these results demonstrate that the integrity of oligodendrocytes and white matter depends on proper glutamate transporter function. Deregulated transporter activity may contribute to acute and chronic white matter damage.
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MESH Headings
- Amino Acid Transport System X-AG/antagonists & inhibitors
- Amino Acid Transport System X-AG/metabolism
- Animals
- Animals, Newborn
- Brain/metabolism
- Brain/physiopathology
- Brain Damage, Chronic/etiology
- Brain Damage, Chronic/metabolism
- Brain Damage, Chronic/physiopathology
- Cell Death/physiology
- Cells, Cultured
- Demyelinating Diseases/chemically induced
- Demyelinating Diseases/metabolism
- Demyelinating Diseases/physiopathology
- Enzyme Inhibitors/pharmacology
- Excitatory Amino Acid Antagonists/pharmacology
- Excitatory Amino Acid Transporter 1/antagonists & inhibitors
- Excitatory Amino Acid Transporter 1/metabolism
- Excitatory Amino Acid Transporter 2/antagonists & inhibitors
- Excitatory Amino Acid Transporter 2/metabolism
- Glutamic Acid/metabolism
- Glutamic Acid/pharmacology
- Neurotoxins/metabolism
- Neurotoxins/pharmacology
- Oligodendroglia/drug effects
- Oligodendroglia/metabolism
- Oligodeoxyribonucleotides, Antisense/pharmacology
- Optic Nerve Diseases/chemically induced
- Optic Nerve Diseases/metabolism
- Optic Nerve Diseases/physiopathology
- Patch-Clamp Techniques
- Rats
- Rats, Sprague-Dawley
- Receptors, AMPA/antagonists & inhibitors
- Receptors, AMPA/metabolism
- Receptors, Kainic Acid/antagonists & inhibitors
- Receptors, Kainic Acid/metabolism
- Wallerian Degeneration/etiology
- Wallerian Degeneration/metabolism
- Wallerian Degeneration/physiopathology
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Affiliation(s)
- María Domercq
- Departamento de Neurociencias, Universidad del País Vasco, Vizcaya, Spain
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31
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Alberdi E, Sánchez-Gómez MV, Torre I, Domercq M, Pérez-Samartín A, Pérez-Cerdá F, Matute C. Activation of kainate receptors sensitizes oligodendrocytes to complement attack. J Neurosci 2006; 26:3220-8. [PMID: 16554473 PMCID: PMC6674098 DOI: 10.1523/jneurosci.3780-05.2006] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Glutamate excitotoxicity and complement attack have both been implicated separately in the generation of tissue damage in multiple sclerosis and in its animal model, experimental autoimmune encephalomyelitis. Here, we investigated whether glutamate receptor activation sensitizes oligodendrocytes to complement attack. We found that a brief incubation with glutamate followed by exposure to complement was lethal to oligodendrocytes in vitro and in freshly isolated optic nerves. Complement toxicity was induced by activation of kainate but not of AMPA receptors and was abolished by removing calcium from the medium during glutamate priming. Dose-response studies showed that sensitization to complement attack is induced by two distinct kainate receptor populations displaying high and low affinities for glutamate. Oligodendrocyte death by complement required the formation of the membrane attack complex, which in turn increased membrane conductance and induced calcium overload and mitochondrial depolarization as well as a rise in the level of reactive oxygen species. Treatment with the antioxidant Trolox and inhibition of poly(ADP-ribose) polymerase-1, but not of caspases, protected oligodendrocytes against damage induced by complement. These findings indicate that glutamate sensitization of oligodendrocytes to complement attack may contribute to white matter damage in acute and chronic neurological disorders.
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MESH Headings
- Animals
- Animals, Newborn
- Antioxidants/pharmacology
- Calcium/metabolism
- Cell Death/drug effects
- Cell Death/immunology
- Cell Membrane/drug effects
- Cell Membrane/immunology
- Cell Membrane/metabolism
- Cells, Cultured
- Complement System Proteins/immunology
- Complement System Proteins/metabolism
- Demyelinating Autoimmune Diseases, CNS/immunology
- Demyelinating Autoimmune Diseases, CNS/metabolism
- Demyelinating Autoimmune Diseases, CNS/physiopathology
- Dose-Response Relationship, Drug
- Glutamic Acid/metabolism
- Glutamic Acid/pharmacology
- Male
- Nerve Fibers, Myelinated/drug effects
- Nerve Fibers, Myelinated/immunology
- Nerve Fibers, Myelinated/metabolism
- Neurotoxins/metabolism
- Oligodendroglia/drug effects
- Oligodendroglia/immunology
- Oligodendroglia/metabolism
- Optic Nerve/drug effects
- Optic Nerve/immunology
- Optic Nerve/metabolism
- Oxidative Stress/drug effects
- Oxidative Stress/immunology
- Patch-Clamp Techniques
- Polynucleotide Adenylyltransferase/antagonists & inhibitors
- Polynucleotide Adenylyltransferase/metabolism
- Rats
- Rats, Sprague-Dawley
- Receptors, Kainic Acid/agonists
- Receptors, Kainic Acid/metabolism
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32
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Matute C, Alberdi E, Domercq M, Pérez-Cerdá F, Pérez-Samartín A, Sánchez-Gómez MV. The link between excitotoxic oligodendroglial death and demyelinating diseases. Trends Neurosci 2001; 24:224-30. [PMID: 11250007 DOI: 10.1016/s0166-2236(00)01746-x] [Citation(s) in RCA: 242] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Oligodendrocytes, the myelinating cells of CNS axons, are highly vulnerable to excitotoxic signals mediated by glutamate receptors of the AMPA and kainate classes. Receptors in these cells are commonly activated by glutamate that is released from axons and glial cells. In addition, oligodendrocytes contribute to the control of extracellular glutamate levels by means of their own transporters. However, acute and chronic alterations in glutamate homeostasis can result in overactivation of AMPA and kainate receptors and subsequent excitotoxic oligodendroglial death. Furthermore, demyelinating lesions caused by excitotoxins can be similar to those observed in multiple sclerosis. This, together with the effect of AMPA and kainate receptor antagonists in ameliorating the neurological score of animals with experimental autoimmune encephalomyelitis (an animal model of multiple sclerosis), indicates that oligodendrocyte excitotoxicity could be involved in the pathogenesis of demyelinating disorders.
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MESH Headings
- Animals
- Autoimmunity/drug effects
- Autoimmunity/physiology
- Cell Death/drug effects
- Cell Death/physiology
- Demyelinating Diseases/drug therapy
- Demyelinating Diseases/metabolism
- Encephalomyelitis, Autoimmune, Experimental/drug therapy
- Encephalomyelitis, Autoimmune, Experimental/metabolism
- Encephalomyelitis, Autoimmune, Experimental/pathology
- Glutamic Acid/metabolism
- Humans
- Multiple Sclerosis/drug therapy
- Multiple Sclerosis/metabolism
- Multiple Sclerosis/pathology
- Neurotoxins/antagonists & inhibitors
- Neurotoxins/metabolism
- Oligodendroglia/drug effects
- Oligodendroglia/metabolism
- Optic Nerve/drug effects
- Optic Nerve/pathology
- Receptors, AMPA/antagonists & inhibitors
- Receptors, AMPA/metabolism
- Receptors, Kainic Acid/antagonists & inhibitors
- Receptors, Kainic Acid/metabolism
- GluK2 Kainate Receptor
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Affiliation(s)
- C Matute
- Departamento de Neurociencias, Universidad del País Vasco, 48940 Leioa, Spain.
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