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<dc:title xml:lang="en">Cellular and molecular mechanism controlling collective glial cell migration in drosophila</dc:title>
<dcterms:alternative xml:lang="fr">Les mécanismes cellulaire el moléculaire contrôlant la migration collective des cellules</dcterms:alternative>
<dc:subject xml:lang="fr">Cellules gliales</dc:subject>
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<dc:subject xml:lang="en">Actin cytoskeleton</dc:subject>
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<tef:elementdEntree autoriteExterne="02742328X" autoriteSource="Sudoc">Différenciation cellulaire</tef:elementdEntree>
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<tef:elementdEntree autoriteExterne="027657426" autoriteSource="Sudoc">Génétique du développement</tef:elementdEntree>
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<dcterms:abstract xml:lang="fr">Le bon fonctionnement des réseaux neuronaux dépend des interactions entre les neurones et les cellules gliales. Alors que de nombreux efforts ont été faits pour comprendre les interactions entre les neurones, moins est connu sur la nature des interactions entre les cellules gliales ; ceci est due à la complexité du système nerveux des vertébrés, qui comprend plus de cellules gliales que de neurones. Cependant, le système nerveux de la drosophile à un rapport neurones-cellules gliales faible, ce qui fait de cet animal simple un modèle idéal pour évaluer ce concept. J’ai utilisé des approches génétiques à résolution cellulaire pour disséquer les mécanismes cellulaires et moléculaires de la migration collective des cellules gliales in vivo. En résumé, mes données révèlent les bases du mécanisme contrôlant la migration cellulaire collective : 1) les cellules du front de migration interagissent entre elles en amont et en aval et 2) N-cad est nécessaire pour une migration optimal de la glie.</dcterms:abstract>
<dcterms:abstract xml:lang="en">The functionality of the complex neural network depends on the interactions between neurons and glia. While many efforts have been made to understand the neuron-neuron interactions, less is known about those amongst glial cells. Due to the complexity of the vertebrate nervous system, which comprises manifold more glia than neurons, it is hard to tackle the role of glia-glia interactions. The nervous system of Drosophila, however, has a lower glia-neuron ratio, which makes this simple animal an ideal model. I use genetic approaches at cellular resolution to dissect the cellular and molecular mechanisms of glial collective migration in vivo. In Sum, I have shown some basic mechanism controlling collective cell migration: 1) cells at the front of the collective interact with each other through anterograde and retrograde bidirectional interaction. 2) N-cad appears necessary for timely movement of glial community.</dcterms:abstract>
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