MINIMAL RESIDUAL DISEASE IN ACUTE LYMPHOBLASTIC LEUKAEMIA
Funder
National Health and Medical Research Council
Funding Amount
$455,204.00
Summary
This project will study the extremely small numbers of leukaemic cells which are found in patients who are apparently healthy, but which sometimes lead to relapse. Very sensitive methods for measuring and studying low levels of leukaemic cells will be developed and used. To develop new better treatments in the long term, we will study why current treatment sometimes fails to eradicate the leukaemia, leading to patients relapsing. Clinicians currently need to obtain samples of bone marrow to asse ....This project will study the extremely small numbers of leukaemic cells which are found in patients who are apparently healthy, but which sometimes lead to relapse. Very sensitive methods for measuring and studying low levels of leukaemic cells will be developed and used. To develop new better treatments in the long term, we will study why current treatment sometimes fails to eradicate the leukaemia, leading to patients relapsing. Clinicians currently need to obtain samples of bone marrow to assess leukaemia, and the research will show whether this needs to be continued, or whether, with sensitive tests, samples of blood can be used instead. The study will involve collaboration with clinicians throughout Australia and overseas.Read moreRead less
Genetic Dissection Of The Biogenesis And Function Of Type IV Fimbriae Of Pseudomonas Aeruginosa
Funder
National Health and Medical Research Council
Funding Amount
$407,545.00
Summary
Pseudomonas aeruginosa is a common bacterium which causes serious life-threatening infections of individuals with cystic fibrosis, AIDS or who have suffered severe burns or are undergoing cancer chemotherapy. This pathogen, and a number of other important infectious bacteria use surface filaments, called fimbriae, like grappling hooks to attach to the cells of the body and to move across host tissues. These fimbriae are produced in response to environmental conditions, and are assembled by a pro ....Pseudomonas aeruginosa is a common bacterium which causes serious life-threatening infections of individuals with cystic fibrosis, AIDS or who have suffered severe burns or are undergoing cancer chemotherapy. This pathogen, and a number of other important infectious bacteria use surface filaments, called fimbriae, like grappling hooks to attach to the cells of the body and to move across host tissues. These fimbriae are produced in response to environmental conditions, and are assembled by a process that is also used in the export of toxins and other pathogenic molecules. This project will characterise genes which specify and control this system, as a means to design better treatments against such bacteria, many of which are resistant to antibiotic treatment.Read moreRead less
DETECTION OF OCCULT DISSEMINATED TUMOUR CELLS AND TUMOUR DNA IN EARLY STAGE OPERABLE BREAST CANCER PATIENTS
Funder
National Health and Medical Research Council
Funding Amount
$561,000.00
Summary
Most of the reduction in breast cancer death rate in recent years is due to earlier diagnosis because of mammographic screening. Even among women with very favorable tumours, at least 20% will die of breast cancer. The risk increases to over 50% in less favorable cases of operable early breast cancer. Current practice relies very heavily upon prognostic factors such as lymph node status and tumour size in determining the risk of subsequent failure and the need for therapy. There is a significant ....Most of the reduction in breast cancer death rate in recent years is due to earlier diagnosis because of mammographic screening. Even among women with very favorable tumours, at least 20% will die of breast cancer. The risk increases to over 50% in less favorable cases of operable early breast cancer. Current practice relies very heavily upon prognostic factors such as lymph node status and tumour size in determining the risk of subsequent failure and the need for therapy. There is a significant risk of under treating good prognosis disease patients (20%) and over treating women with intermediate and high risk disease (40%). The first aim of the study is to use novel molecular methodologies to detect breast cancer cells in the blood of patients with early stage breast cancer at diagnosis. The presence of tumour cells will be correlated with the usual prognostic factors used in the management of women with breast cancer. The patients will be followed long-term to clarify the relationship between disseminated tumour cells in the blood and bone marrow and eventual outcome to assess the effectiveness of these new methodologies in patient management. We will also assess new molecular methodologies which will allow us to track very low levels of disease, and thereby monitor the effectiveness of treatment, and allow prediction of impending relapse. Studying the blood of breast cancer patients represents a unique opportunity for determining whether the cancer has spread before surgery and for monitoring of disease after surgical removal of the tumour. This study may prove invaluable in predicting disease free and survival outcomes and provide a more rational approach to the use of chemotherapy in patients with early breast cancer.Read moreRead less
Analysis Of A Chemosensory Complex That Controls Twitching Motility And Virulence In Pseudomonas Aeruginosa
Funder
National Health and Medical Research Council
Funding Amount
$346,250.00
Summary
Pseudomonas aeruginosa is a common bacterium which causes serious life-threatening infections of individuals with cystic fibrosis, AIDS or who have suffered severe burns or are undergoing cancer chemotherapy. Infection by this pathogen requires the controlled expression of a large number of virulence factors including extracellular enzyme, toxins and structures for the attachment and colonisation of host tissues. We have identified a complex multicomponent regulatory system which coordinates the ....Pseudomonas aeruginosa is a common bacterium which causes serious life-threatening infections of individuals with cystic fibrosis, AIDS or who have suffered severe burns or are undergoing cancer chemotherapy. Infection by this pathogen requires the controlled expression of a large number of virulence factors including extracellular enzyme, toxins and structures for the attachment and colonisation of host tissues. We have identified a complex multicomponent regulatory system which coordinates the expression of many of the virulence determinants of this pathogen. This project aims to dissect the intermolecular interactions and signalling events which input into, occur within, and output from this regulatory system. This knowledge will provide a platform for developing rational strategies for the production of new antimicrobials for fighting infections by this and related pathogens.Read moreRead less
Protecting Hyposplenic Children And Adults: Identifying Optimal Immunisation Regimens
Funder
National Health and Medical Research Council
Funding Amount
$472,044.00
Summary
Children and adults without normal spleen function are at massively increased risk of overwhelming infection with the pneumococcus bacteria, with 200 times the risk of death from sepsis compared with the normal community. Poor spleen function can be due to an absent spleen (eg after surgery following a car accident) or an underlying medical condition (eg thalassaemia or cancer therapy). Thousands of Australians are affected by this condition and need extra protection from daily antibiotics and a ....Children and adults without normal spleen function are at massively increased risk of overwhelming infection with the pneumococcus bacteria, with 200 times the risk of death from sepsis compared with the normal community. Poor spleen function can be due to an absent spleen (eg after surgery following a car accident) or an underlying medical condition (eg thalassaemia or cancer therapy). Thousands of Australians are affected by this condition and need extra protection from daily antibiotics and additional immunsiations against pneumococcus. A new vaccine against pneumococcus was introduced for Australian infants routinely in 2005 and has prevented many from developing pneumococcal meningitis, sepsis and pneumonia. We wish to see whether this new vaccine, when used with the older existing pneumococcal vaccine, will better protect older children and adults with poor spleen function from the devastating effects of pneumococcus. We will compare different ways of using these vaccines to try to identify the most protective vaccination plan for this vulnerable group of Australians.Read moreRead less
Understanding Burn Injuries In Aboriginal And Torres Strait Islander Children: Treatment, Access To Services And Outcomes.
Funder
National Health and Medical Research Council
Funding Amount
$911,798.00
Summary
This is the first large scale study to systematically examine the burden of burn injury in Aboriginal and Torres Strait Islander children, including care and cost of treatment, and relationship between access to treatment and functional outcomes. With a team comprising epidemiologists, burns clinicans and Aboriginal health researchers, this study will generate important new research evidence to improve care in this over-represented and vulnerable population.