Skip to main content
Ir a la página de inicio de la Comisión Europea (se abrirá en una nueva ventana)
español es
CORDIS - Resultados de investigaciones de la UE
CORDIS
Contenido archivado el 2024-05-14

The combination of gene targeting and biochip technology to study neurotrophin function during brain development

Objetivo



The develepment of the brain is characterized by a spatiotemporally controlled sequence of cell migration, synaptogenesis and formation of topographic maps. Neurotrophins such as brain derived neurotrophic factor BDNF are likely to be instrumental during these processess, though major aspects remain to be unraveled. To elucidate the regulatory function of BDNF in these interconnected developmental processes, a multidisciplinary approach is proposed by 3 research laboratories and a small enterprise from 3 european countries employing novel strategies and highly innovative combinations of gene and microchip technologies.
Stimulation-dependent BDNF expression. Induction of long term potentiation and epileptic seizures by short term supra-physiological electrical stimulation is accompanied by increased expression of BDNF. In order to allow molecular single cell analysis within a native neuronal network under more physiological conditions, hippocampi will be organotypically cultured directly on micro electrode arrays (MEA with 60 electrodes), which allows spatially controlled and continuous electrical stimulation over weeks. This most advanced biochip will be combined with fluorescent reporter gene technology. Introduction of green fluorescent protein at the activity required exon 3 BDNF promoter will enable us to evaluate the effects of longterm electrical stimulation paradigms on regulation of neurotrophin expression under physiological and pathophysiological conditions.
BDNF-dependent granular cell migration. In the dentate gyrus/hippocampus a life-long generation and defined migration of granular cells, which is correlated with the function of the neuronal network, takes place. To analyse the impact of BDNF on cell migration, conditional BDNF knockout mice with a restricted tissue-specific gene deficiency will be generated. Analysis of gene-targeted mice and of a novel xenograft transplantion model in vitro will reveal BDNF regulation of cell migration.
BDNF-dependent topographic map formation. The topographic projections of afferents from the contralateral hippocampus and enterorhinal cortex become sequentially separated into distinct sublayers of the hippocampus. Different neurothrophin knockouts will be used to analyse the impact of neurotrophins in this process in vivo and in vitro. Histological and biochemical assays will be used to monitor the influence of neurotrophins on synaptogenesis and the expression of the synapse-associated proteins SNARES.
Since all three aspects of BDNF regulation are causally linked, the sole use of the mouse hippocampus as unifying model will facilitate to unravel the multifunctionality of BDNF.
Precompetetive measureable objectives comprise 2 novel transgenic mice strains, fluoro biochip technology, and a prototype of a MEA stimulation device. The proposal objectives of neurotrophin function during hippocampal development comply with the objectives of the programme Biotechnology, Tasks 4.1 4. 4, and 4.5.

Ámbito científico (EuroSciVoc)

CORDIS clasifica los proyectos con EuroSciVoc, una taxonomía plurilingüe de ámbitos científicos, mediante un proceso semiautomático basado en técnicas de procesamiento del lenguaje natural. Véas: El vocabulario científico europeo..

Para utilizar esta función, debe iniciar sesión o registrarse

Programa(s)

Programas de financiación plurianuales que definen las prioridades de la UE en materia de investigación e innovación.

Tema(s)

Las convocatorias de propuestas se dividen en temas. Un tema define una materia o área específica para la que los solicitantes pueden presentar propuestas. La descripción de un tema comprende su alcance específico y la repercusión prevista del proyecto financiado.

Convocatoria de propuestas

Procedimiento para invitar a los solicitantes a presentar propuestas de proyectos con el objetivo de obtener financiación de la UE.

Datos no disponibles

Régimen de financiación

Régimen de financiación (o «Tipo de acción») dentro de un programa con características comunes. Especifica: el alcance de lo que se financia; el porcentaje de reembolso; los criterios específicos de evaluación para optar a la financiación; y el uso de formas simplificadas de costes como los importes a tanto alzado.

CSC - Cost-sharing contracts

Coordinador

NATURWISSENSCHAFTLICHES UND MEDIZINISCHES INSTITUT AN DER UNIVERSITAET TUEBINGEN
Aportación de la UE
Sin datos
Dirección
55,Markwiesenstr. 55
72072 TUEBINGEN
Alemania

Ver en el mapa

Coste total

Los costes totales en que ha incurrido esta organización para participar en el proyecto, incluidos los costes directos e indirectos. Este importe es un subconjunto del presupuesto total del proyecto.

Sin datos

Participantes (3)

Mi folleto 0 0