Characterisation of novel regulators of the haemopoeitic system.

Funding Activity

Website
http://purl.org/au-research/grants/nhmrc/110298

Funding Status
Closed

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Funded Activity Summary

All of the circulating blood cells (including red cells and white cells) develop from a single cell type, called the haemopoietic stem cell (HSC), found in the adult bone marrow. Normally, HSCs are gradually restricted to become only one cell type and once they have started down that pathway can no longer generate cells of another pathway (e.g. once HSC begin to develop into red blood cells, they cannot normally change their direction to become white cells). There are a few examples of mature cells, however, that have changed pathways. We have use one of these, the mouse J2E red cell changing into macrophages, to identify the genes involved in this process. Two of the genes we found, HLS5 and HLS7, are potentially important in lineage determination and normal blood development as well as the formation of blood cancers. This project aims to investigate the roles these genes play in blood development. Much of our work to date has focused on HLS7. The human equivalent of HLS7 was found by an American group independently of us as a gene which causes one type of blood cancer. We have shown HLS7 has dramatic effects on normal blood development and, together, these results clearly show the importance of this gene. Through our studies on how HLS7 works, we have identified another gene, M44, which may be important in regulation of HLS7 and also plan to investigate is function. Finally, HLS5 has similarities to a group of molecules called transcription factors which are known to be key regulators blood development. Clearly, analysis of this gene will further our knowledge in this field.

Funded Activity Details

Start Date: 01-01-2000

End Date: 01-01-2002

Funding Scheme: NHMRC Project Grants

Funding Amount: $381,680.00

Funder: National Health and Medical Research Council

Research Topics

ANZSRC Field of Research (FoR)

Cell Development (Incl. Cell Division And Apoptosis)

ANZSRC Socio-Economic Objective (SEO)

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Other Keywords

Acute Myeloid Leukaemia | Chromosomal translocation | Erythroleukemia | Haemopoetic lineage commitment and differentiation | Haemopoietic lineage switching | Regulation of gene expression | Signal transduction | Transcription Factors

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