Functional analysis of the X-linked Hypopituitarism (XH) gene SOX3

Funding Activity

Website
http://purl.org/au-research/grants/nhmrc/284545

Funding Status
Closed

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Funded Activity Summary

Many of the processes that are essential for normal bodily function such as growth, the ability to cope with stress, sexual organ development and metabolism are controlled by the pituitary gland. This organ is located at the base of the brain and regulates these bodily functions through the release of six different hormones. Formation of the pituitary gland occurs during development of the foetus. This process requires a specific set of genes that shape the pituitary and allow the hormone-secreting cells to arise. Changes in these pituitary formation genes results in dysfunction of the pituitary (hypopituitarism) in newborn babies. In severe cases, where the pituitary has failed to form completely, these babies are extremely ill and in some instances do not survive. We are studying families with an inherited form of hypopituitarism in which only male children are affected. This disorder is due to the presence of an extra piece of genetic material (DNA) on the X chromosome. We have recently discovered that one of the duplicated genes, SOX3, causes this disorder. The overall aim of this proposal is to understand how SOX3 causes hypopituitarism by generating a mouse model for this disorder. Analysis of this mouse model will help us to understand the clinical features of hypopituitarism and may allow us to identify previously uncharacterised anatomical defects associated with this disorder. Ultimately,we hope to develop new and improved therapies for hypopituitarism using this mouse model.

Funded Activity Details

Start Date: 01-01-2004

End Date: 01-01-2006

Funding Scheme: NHMRC Project Grants

Funding Amount: $331,000.00

Funder: National Health and Medical Research Council

Research Topics

ANZSRC Field of Research (FoR)

Genetic Development (Incl. Sex Determination)

ANZSRC Socio-Economic Objective (SEO)

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Other Keywords

X-linked genetic disorder | congenital hypopituitarism | failure to thrive | familial growth hormone deficiency | gene dosage | pituitary development | transgenic mouse models

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