Glutamate Release Machinery Is Altered in the Frontal Cortex of Rats with Experimental Autoimmune Encephalomyelitis
- Autores
- Chanaday Ricagni, Natalí Luján; Vilcaes, Aldo Alejandro; de Paul, Ana Lucia; Torres, Alicia Ines; Degano, Alicia Laura; Roth, German Alfredo
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Experimental autoimmune encephalomyelitis (EAE) is an animal model that mimics many of the clinical and pathological features of the human disease multiple sclerosis (MS). Both are inflammatory demyelinating and neurodegenerative pathologies of the central nervous system associated with motor, sensory, and cognitive deficits. In MS, gray matter atrophy is related to the emergence of cognitive deficits and contributes to clinical progression. In particular, prefrontal cortex injury and dysfunction have been correlated to the development of fatigue, one of the most common and disabling symptoms in MS. However, the molecular bases of these changes remain unknown. Taking advantage of EAE similitude, we herein analyze functional and morphological changes in isolated cortical presynaptic terminals (synaptosomes) from an acute rat model. We found impaired glutamate release in the frontal cortex from EAE rats. This defect appeared along with the onset of the disease, reversing when clinical signs were no more evident. Biochemical analysis of EAE synaptosomes revealed alterations in the presynaptic release machinery and in the response to depolarization, which was accompanied by abnormal synapsin I phosphorylation and dispersion. These changes were associated with reduced synaptic vesicle mobility, with no alterations in synaptosomal morphology as evidenced by electron microscopy. The present are the first pieces of evidence unraveling the molecular mechanisms of frontal cortex neuronal dysfunction in EAE and, possibly, MS.
Fil: Chanaday Ricagni, Natalí Luján. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Centro de Investigaciones En Química Biológica de Córdoba (p); Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Quimica Biológica; Argentina
Fil: Vilcaes, Aldo Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Centro de Investigaciones En Química Biológica de Córdoba (p); Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Quimica Biológica; Argentina
Fil: de Paul, Ana Lucia. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Instituto de Investigaciones En Ciencias de la Salud; Argentina. Universidad Nacional de Cordoba. Facultad de Medicina. Centro de Microscopia Electronica; Argentina
Fil: Torres, Alicia Ines. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Instituto de Investigaciones En Ciencias de la Salud; Argentina. Universidad Nacional de Cordoba. Facultad de Medicina. Centro de Microscopia Electronica; Argentina
Fil: Degano, Alicia Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Centro de Investigaciones En Química Biológica de Córdoba (p); Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Quimica Biológica; Argentina
Fil: Roth, German Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Centro de Investigaciones En Química Biológica de Córdoba (p); Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Quimica Biológica; Argentina - Materia
-
Experimental Autoimmune Encephalomyelitis
Multiple Sclerosis
Synaptsin
Glutamate Release
Synaptosomes
Release Machinery - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/11660
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Glutamate Release Machinery Is Altered in the Frontal Cortex of Rats with Experimental Autoimmune EncephalomyelitisChanaday Ricagni, Natalí LujánVilcaes, Aldo Alejandrode Paul, Ana LuciaTorres, Alicia InesDegano, Alicia LauraRoth, German AlfredoExperimental Autoimmune EncephalomyelitisMultiple SclerosisSynaptsinGlutamate ReleaseSynaptosomesRelease Machineryhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Experimental autoimmune encephalomyelitis (EAE) is an animal model that mimics many of the clinical and pathological features of the human disease multiple sclerosis (MS). Both are inflammatory demyelinating and neurodegenerative pathologies of the central nervous system associated with motor, sensory, and cognitive deficits. In MS, gray matter atrophy is related to the emergence of cognitive deficits and contributes to clinical progression. In particular, prefrontal cortex injury and dysfunction have been correlated to the development of fatigue, one of the most common and disabling symptoms in MS. However, the molecular bases of these changes remain unknown. Taking advantage of EAE similitude, we herein analyze functional and morphological changes in isolated cortical presynaptic terminals (synaptosomes) from an acute rat model. We found impaired glutamate release in the frontal cortex from EAE rats. This defect appeared along with the onset of the disease, reversing when clinical signs were no more evident. Biochemical analysis of EAE synaptosomes revealed alterations in the presynaptic release machinery and in the response to depolarization, which was accompanied by abnormal synapsin I phosphorylation and dispersion. These changes were associated with reduced synaptic vesicle mobility, with no alterations in synaptosomal morphology as evidenced by electron microscopy. The present are the first pieces of evidence unraveling the molecular mechanisms of frontal cortex neuronal dysfunction in EAE and, possibly, MS.Fil: Chanaday Ricagni, Natalí Luján. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Centro de Investigaciones En Química Biológica de Córdoba (p); Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Quimica Biológica; ArgentinaFil: Vilcaes, Aldo Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Centro de Investigaciones En Química Biológica de Córdoba (p); Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Quimica Biológica; ArgentinaFil: de Paul, Ana Lucia. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Instituto de Investigaciones En Ciencias de la Salud; Argentina. Universidad Nacional de Cordoba. Facultad de Medicina. Centro de Microscopia Electronica; ArgentinaFil: Torres, Alicia Ines. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Instituto de Investigaciones En Ciencias de la Salud; Argentina. Universidad Nacional de Cordoba. Facultad de Medicina. Centro de Microscopia Electronica; ArgentinaFil: Degano, Alicia Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Centro de Investigaciones En Química Biológica de Córdoba (p); Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Quimica Biológica; ArgentinaFil: Roth, German Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Centro de Investigaciones En Química Biológica de Córdoba (p); Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Quimica Biológica; ArgentinaSpringer2014-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/11660Chanaday Ricagni, Natalí Luján; Vilcaes, Aldo Alejandro; de Paul, Ana Lucia; Torres, Alicia Ines; Degano, Alicia Laura; et al.; Glutamate Release Machinery Is Altered in the Frontal Cortex of Rats with Experimental Autoimmune Encephalomyelitis; Springer; Molecular Neurobiology; 51; 3; 7-2014; 1353-13670893-76481559-1182enginfo:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007%2Fs12035-014-8814-6info:eu-repo/semantics/altIdentifier/url/http://dx.doi.org/10.1007/s12035-014-8814-6info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:09:55Zoai:ri.conicet.gov.ar:11336/11660instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:09:55.308CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Glutamate Release Machinery Is Altered in the Frontal Cortex of Rats with Experimental Autoimmune Encephalomyelitis |
title |
Glutamate Release Machinery Is Altered in the Frontal Cortex of Rats with Experimental Autoimmune Encephalomyelitis |
spellingShingle |
Glutamate Release Machinery Is Altered in the Frontal Cortex of Rats with Experimental Autoimmune Encephalomyelitis Chanaday Ricagni, Natalí Luján Experimental Autoimmune Encephalomyelitis Multiple Sclerosis Synaptsin Glutamate Release Synaptosomes Release Machinery |
title_short |
Glutamate Release Machinery Is Altered in the Frontal Cortex of Rats with Experimental Autoimmune Encephalomyelitis |
title_full |
Glutamate Release Machinery Is Altered in the Frontal Cortex of Rats with Experimental Autoimmune Encephalomyelitis |
title_fullStr |
Glutamate Release Machinery Is Altered in the Frontal Cortex of Rats with Experimental Autoimmune Encephalomyelitis |
title_full_unstemmed |
Glutamate Release Machinery Is Altered in the Frontal Cortex of Rats with Experimental Autoimmune Encephalomyelitis |
title_sort |
Glutamate Release Machinery Is Altered in the Frontal Cortex of Rats with Experimental Autoimmune Encephalomyelitis |
dc.creator.none.fl_str_mv |
Chanaday Ricagni, Natalí Luján Vilcaes, Aldo Alejandro de Paul, Ana Lucia Torres, Alicia Ines Degano, Alicia Laura Roth, German Alfredo |
author |
Chanaday Ricagni, Natalí Luján |
author_facet |
Chanaday Ricagni, Natalí Luján Vilcaes, Aldo Alejandro de Paul, Ana Lucia Torres, Alicia Ines Degano, Alicia Laura Roth, German Alfredo |
author_role |
author |
author2 |
Vilcaes, Aldo Alejandro de Paul, Ana Lucia Torres, Alicia Ines Degano, Alicia Laura Roth, German Alfredo |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
Experimental Autoimmune Encephalomyelitis Multiple Sclerosis Synaptsin Glutamate Release Synaptosomes Release Machinery |
topic |
Experimental Autoimmune Encephalomyelitis Multiple Sclerosis Synaptsin Glutamate Release Synaptosomes Release Machinery |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Experimental autoimmune encephalomyelitis (EAE) is an animal model that mimics many of the clinical and pathological features of the human disease multiple sclerosis (MS). Both are inflammatory demyelinating and neurodegenerative pathologies of the central nervous system associated with motor, sensory, and cognitive deficits. In MS, gray matter atrophy is related to the emergence of cognitive deficits and contributes to clinical progression. In particular, prefrontal cortex injury and dysfunction have been correlated to the development of fatigue, one of the most common and disabling symptoms in MS. However, the molecular bases of these changes remain unknown. Taking advantage of EAE similitude, we herein analyze functional and morphological changes in isolated cortical presynaptic terminals (synaptosomes) from an acute rat model. We found impaired glutamate release in the frontal cortex from EAE rats. This defect appeared along with the onset of the disease, reversing when clinical signs were no more evident. Biochemical analysis of EAE synaptosomes revealed alterations in the presynaptic release machinery and in the response to depolarization, which was accompanied by abnormal synapsin I phosphorylation and dispersion. These changes were associated with reduced synaptic vesicle mobility, with no alterations in synaptosomal morphology as evidenced by electron microscopy. The present are the first pieces of evidence unraveling the molecular mechanisms of frontal cortex neuronal dysfunction in EAE and, possibly, MS. Fil: Chanaday Ricagni, Natalí Luján. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Centro de Investigaciones En Química Biológica de Córdoba (p); Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Quimica Biológica; Argentina Fil: Vilcaes, Aldo Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Centro de Investigaciones En Química Biológica de Córdoba (p); Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Quimica Biológica; Argentina Fil: de Paul, Ana Lucia. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Instituto de Investigaciones En Ciencias de la Salud; Argentina. Universidad Nacional de Cordoba. Facultad de Medicina. Centro de Microscopia Electronica; Argentina Fil: Torres, Alicia Ines. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Instituto de Investigaciones En Ciencias de la Salud; Argentina. Universidad Nacional de Cordoba. Facultad de Medicina. Centro de Microscopia Electronica; Argentina Fil: Degano, Alicia Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Centro de Investigaciones En Química Biológica de Córdoba (p); Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Quimica Biológica; Argentina Fil: Roth, German Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Centro de Investigaciones En Química Biológica de Córdoba (p); Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Quimica Biológica; Argentina |
description |
Experimental autoimmune encephalomyelitis (EAE) is an animal model that mimics many of the clinical and pathological features of the human disease multiple sclerosis (MS). Both are inflammatory demyelinating and neurodegenerative pathologies of the central nervous system associated with motor, sensory, and cognitive deficits. In MS, gray matter atrophy is related to the emergence of cognitive deficits and contributes to clinical progression. In particular, prefrontal cortex injury and dysfunction have been correlated to the development of fatigue, one of the most common and disabling symptoms in MS. However, the molecular bases of these changes remain unknown. Taking advantage of EAE similitude, we herein analyze functional and morphological changes in isolated cortical presynaptic terminals (synaptosomes) from an acute rat model. We found impaired glutamate release in the frontal cortex from EAE rats. This defect appeared along with the onset of the disease, reversing when clinical signs were no more evident. Biochemical analysis of EAE synaptosomes revealed alterations in the presynaptic release machinery and in the response to depolarization, which was accompanied by abnormal synapsin I phosphorylation and dispersion. These changes were associated with reduced synaptic vesicle mobility, with no alterations in synaptosomal morphology as evidenced by electron microscopy. The present are the first pieces of evidence unraveling the molecular mechanisms of frontal cortex neuronal dysfunction in EAE and, possibly, MS. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-07 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/11660 Chanaday Ricagni, Natalí Luján; Vilcaes, Aldo Alejandro; de Paul, Ana Lucia; Torres, Alicia Ines; Degano, Alicia Laura; et al.; Glutamate Release Machinery Is Altered in the Frontal Cortex of Rats with Experimental Autoimmune Encephalomyelitis; Springer; Molecular Neurobiology; 51; 3; 7-2014; 1353-1367 0893-7648 1559-1182 |
url |
http://hdl.handle.net/11336/11660 |
identifier_str_mv |
Chanaday Ricagni, Natalí Luján; Vilcaes, Aldo Alejandro; de Paul, Ana Lucia; Torres, Alicia Ines; Degano, Alicia Laura; et al.; Glutamate Release Machinery Is Altered in the Frontal Cortex of Rats with Experimental Autoimmune Encephalomyelitis; Springer; Molecular Neurobiology; 51; 3; 7-2014; 1353-1367 0893-7648 1559-1182 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007%2Fs12035-014-8814-6 info:eu-repo/semantics/altIdentifier/url/http://dx.doi.org/10.1007/s12035-014-8814-6 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
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reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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13.13397 |