Dissecting the molecular mechanisms driving cell migration during neurulation triggered by the netrin receptor, neogenin

Funding Activity

Website
http://purl.org/au-research/grants/nhmrc/301099

Funding Status
Closed

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Funded Activity Summary

In humans, abnormalities in brain and spinal cord formation during early embryogenesis result in congenital syndromes such as spina bifida and anencephaly. These defects occur at a rate of 1-1000 pregnancies and are therefore a major contributor to pre- and perinatal deaths. In the early embryo, the brain and spinal cord begin as a hollow tube of cells (the neural tube) that subsequently expands into the complex structures seen at birth. It is known that the neural tube is formed by a complex process in which early neural cells migrate toward the midline of the embryo and subsequently coalesce. This project seeks to determine the function of one molecular signaling pathway (the neogenin pathway) that has been implicated in driving these cell migration events. We will initially use the frog, Xenopus laevis, as our embryonic model since the developmental processes that form the Xenopus neural tube closely parallel those ocurring in the human embryo. This model will allow us to identify the molecules in the neogenin signaling pathway. We will also create mice that carry a mutation in the neogenin gene so that we can study neogenin function in the mammal. We anticipate that these studies will provide important insights into the development of the central nervous system and also into the aberrant molecular processes underlying neural tube defects in man.

Funded Activity Details

Start Date: 01-01-2004

End Date: 01-01-2006

Funding Scheme: NHMRC Project Grants

Funding Amount: $432,750.00

Funder: National Health and Medical Research Council

Research Topics

ANZSRC Field of Research (FoR)

Medical parasitology

ANZSRC Socio-Economic Objective (SEO)

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Other Keywords

CNS repair after injury | cell signalling | control of cell movement | developmental neurobiology | migration | molecular mechanism | nervous system development | neural stem cell | neural tube defects | neuronal migration

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