Immunohistochemistry of GluR1 subunits of AMPA receptors of rat cerebellar nerve cells



Título del documento: Immunohistochemistry of GluR1 subunits of AMPA receptors of rat cerebellar nerve cells
Revista: Biocell
Base de datos: PERIÓDICA
Número de sistema: 000321957
ISSN: 0327-9545
Autores: 1
2
Instituciones: 1Universidad del Zulia, Facultad de Medicina, Maracaibo, Zulia. Venezuela
2University of Iowa, Department of Biological Sciences, Iowa City, Iowa. Estados Unidos de América
Año:
Periodo: Ago
Volumen: 33
Número: 2
Paginación: 71-80
País: Argentina
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés The localization of GluR1 subunits of ionotropic glutamate receptors in the glial cells and inhibitory neurons of cerebellar cortex and their association with the climbing and parallel fibers, and basket cell axons were studied. Samples of P14 and P21 rat cerebellar cortex were exposed to a specific antibody against GluR1 subunit(s) of AMPA receptors and were examined with confocal laser scanning microscopy. GluR1 strong immunoreactivity was confined to Purkinje cell and the molecular layer. Weak GluR1 immunoreactivity was observed surrounding some Golgi cells in the granule cell layer. Intense GluR1 immunoreactivity was localized around Purkinje, basket, and stellate cells. Purkinje cells expressed strong GluR1 immunoreactivity surrounding the cell body, primary dendritic trunk and secondary and tertiary spiny dendritic branches. Marked immunofluorescent staining was also detected in the Bergmann glial fibers at the level of middle and outer third molecular layer. Positive immunofluorescence staining was also observed surrounding basket and stellate cells, and in the capillary wall. These findings suggest the specific localization of GluR1 subunits of AMPA receptors in Bergmann glial cells, inhibitory cerebellar neurons, and the associated excitatory glutamatergic circuits formed by climbing and parallel fibers, and by the inhibitory basket cell axons
Disciplinas: Biología,
Química,
Medicina
Palabras clave: Biología celular,
Bioquímica,
Neurología,
Neurorreceptores,
Glutamato,
Glia,
Microscopía confocal
Keyword: Biology,
Chemistry,
Medicine,
Cell biology,
Biochemistry,
Neurology,
Neuroreceptors,
Glutamate,
Glia,
Confocal microscopy
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