I am a developmental biologist investigating the molecular mechanisms regulating prenatal development and stem cell populations in the adult. I am studying defects in essential developmental processes leading to severe congenital disorders such as mental
I am a cancer biologist investigating mechanisms that regulate the aberrant cell proliferation in cancers, particularly melanomas. I am attempting to utilise defects in normal proliferative mechanisms as targets for novel anti-cancer therapies.
How Does Fra-1 Regulate The Invasive Properties Of Tumour Cells?
Funder
National Health and Medical Research Council
Funding Amount
$468,119.00
Summary
Most cancer deaths occur when tumours spread and destroy vital body functions. The invasion of tumour cells into surrounding tissue is a critical step during the spread of cancer. This project aims to unravel the molecular mechanisms that control the ability of tumour cells to invade into surrounding tissue and subsequently spread to other sites in the body. We expect to identify potential targets to better diagnose and treat the spread of cancer.
PROTEIN TARGETS FOR THE STEROID RECEPTOR MODULATOR, CYCLOPHILIN 40
Funder
National Health and Medical Research Council
Funding Amount
$374,828.00
Summary
Steroids bind to specific receptor proteins in steroid responsive cells. These receptors are kept in a steroid-binding ready state by chaperone proteins which function to fold the receptors appropriately. The major chaperone protein is heat shock protein, hsp90. A second family of proteins called immunophilins, cooperate with hsp90 in receptor folding. These immunophilins can bind to immunosuppressant drugs, which may result in a change in receptor function. We have identified one of these immun ....Steroids bind to specific receptor proteins in steroid responsive cells. These receptors are kept in a steroid-binding ready state by chaperone proteins which function to fold the receptors appropriately. The major chaperone protein is heat shock protein, hsp90. A second family of proteins called immunophilins, cooperate with hsp90 in receptor folding. These immunophilins can bind to immunosuppressant drugs, which may result in a change in receptor function. We have identified one of these immunophilins as cyclophilin 40 ( CyP40), a protein that binds the immunosupressant drug, cyclosporin A. We have recently found that, in addition to binding to hsp90, CyP40 may bind to and regulate the function of other proteins which are important in how cells grow and die. The aims of this project are to study how CyP40 binds to hsp90 and to these other proteins and to determine the functional outcomes of these interactions.Read moreRead less
Identifying Mechanisms That Increase The Pool Of Brain Wiring Proteins
Funder
National Health and Medical Research Council
Funding Amount
$445,093.00
Summary
The computational power of the brain is driven by its interconnected nerve cells. Defects in these connections can lead to neurological disease. This proposal seeks to identify new mechanisms for generating specific connections between nerve cells and thus establishing the proper neural circuitry in a healthy brain.
THE ROLE OF A NOVEL NEGATIVE CELL CYCLE REGULATORY PATHWAY DURING ANIMAL DEVELOPMENT
Funder
National Health and Medical Research Council
Funding Amount
$406,980.00
Summary
Cancer is a disease that is likely to affect 1-4 people at some point in their lifetime. Therefore, understanding what causes cancer is of major importance to medical science. Cancers arise through the accumulation of mutations that alter normal cell proliferation control, differentiation or apoptosis (programed cell death). Many genes involved in cancer have been identified, however, there are likely to be many more genes, that when disrupted or misexpressed can lead to cancer. We are intereste ....Cancer is a disease that is likely to affect 1-4 people at some point in their lifetime. Therefore, understanding what causes cancer is of major importance to medical science. Cancers arise through the accumulation of mutations that alter normal cell proliferation control, differentiation or apoptosis (programed cell death). Many genes involved in cancer have been identified, however, there are likely to be many more genes, that when disrupted or misexpressed can lead to cancer. We are interested in the regulation of cell proliferation, and have been studying this in the genetically amenable animal model system, Drosophila. Central to the control of cell proliferation in all organisms are the Cyclin dependent protein kinases. Cyclin E-dependent protein kinase is required to drive cells from the G1 (resting state) into S phase (where DNA replication occurs). Correct control of Cyclin E is important in limiting cell proliferation and many cancer causing mutations result in up-regulation of this critical cell cycle regulator and premature entry into the cell cycle. We have used a genetic approach using a weak mutation in Drosophila Cyclin E to isolate mutations in other important regulators of the G1 to S phase transition. This proposal focuses on one of these regulators, Phyl, and the proteins that function with it, Sina and Ebi, which act to target and lead to the degradation of key proteins that negatively regulate differentiation and that promote cell proliferation. In this proposal we seek to understand how the Ebi-Phyl-SIna protein complex functions to control cell proliferation in Drosophila. In addition, we will examine whether the Sina complex also acts to inhibit cell proliferation in the mouse. Due to the remarkable conservation of genes involved in cell proliferation control through evolution, this study is directly relevant to the control of cell proliferation and the development of cancer in humans.Read moreRead less
Identifying Genetic Risk Factors And Elucidating The Underlying Mechanism(s) Of Parkinsons Disease
Funder
National Health and Medical Research Council
Funding Amount
$85,855.00
Summary
Parkinson’s disease (PD) is a common neurodegenerative disorder affecting 1% of people over 65. This innovative research seeks to discover new genetic risk factors that affect disease development. This provides the capability for genetic screening to identify individuals at risk for PD so preventative measures can be employed at an earlier stage. This information will also provide insights as to how the disease occurs and suggest drug targets to improve current partially effective therapy.
Molecular Characterisation Of Lipid Droplet Function
Funder
National Health and Medical Research Council
Funding Amount
$496,446.00
Summary
Fat is stored inside cells in spherical structures called lipid droplets. The accumulation of fat within lipid droplets underlies obesity. This project aims to understand how fat is stored within lipid droplets and how it is released when energy is required. In particular, we will look at two types of protein which move to lipid droplets under certain energy conditions and attempt to unravel how these proteins control fat storage and release. The first protein we will study, caveolin, normally a ....Fat is stored inside cells in spherical structures called lipid droplets. The accumulation of fat within lipid droplets underlies obesity. This project aims to understand how fat is stored within lipid droplets and how it is released when energy is required. In particular, we will look at two types of protein which move to lipid droplets under certain energy conditions and attempt to unravel how these proteins control fat storage and release. The first protein we will study, caveolin, normally associates with regions of the cell surface but moves to lipid droplets when cells are fed lipids. Mice which lack this protein eat more food but remain leaner than normal mice. Understanding how caveolin moves to lipid droplets and how it controls fat accumulation will therefore provide new insights into obesity and conditions associated with obesity, such as diabetes. The second protein to be studied, Rab18, is a member of a protein family which controls membrane movement within cells. Rab18 moves to lipid droplets when lipid release is stimulated. Therefore studies of Rab18 can provide new insights into the way lipids are released from fat tissue under conditions of starvation. The project will provide fundamental new insights into the basic mechanisms by which we store energy and the energy imbalances which cause obesity and related diseases.Read moreRead less