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Platelet Receptor Shedding In Stroke And Thrombosis
Funder
National Health and Medical Research Council
Funding Amount
$552,503.00
Summary
In response to tissue injury and bleeding, blood platelets use receptors to form a thrombus (blood clot) and block further loss of blood and aid tissue repair. In inflammation or disease, abberant platelet activation can form a thrombus within cerebral (stroke) or coronary vessels (heart attack). We examine how a thrombus-limiting step (platelet receptor shedding) is triggered in thrombus-forming platelets, and if shed receptor can be used as a blood marker of abberant platelet activation.
A number of previous studies have shown high levels of two proteins, STC1 and STC2, in a substantial subset of breast cancers. We are proposing to do the first definitive analyses of whether these hormone-like proteins contribute to breast cancer growth. If yes, they are suitable targets for development of new treatments.
This project seeks to identify blood borne biomarkers that may be used, at the first antenatal visit, to identify women at risk of developing complications of pregnancy, If women at risk can be identified early opportunity is afforded to improve outcome for both mother and baby.
An Evaluation Of Inhibin And Activin As Early Markers Of Pre-eclampsia And Fetal Growth Restriction.
Funder
National Health and Medical Research Council
Funding Amount
$96,921.00
Summary
Pre-eclampsia and fetal growth problems are among the major causes of maternal and perinatal death in Australia. One of the most pressing difficulties in the management of these conditions is our present inability to accurately predict those women who are destined to have one or other of these serious complications. Unfortunately, this means that the conditions are often detected late with little or no time to offer effective treatments. This project builds on exciting preliminary evidence that ....Pre-eclampsia and fetal growth problems are among the major causes of maternal and perinatal death in Australia. One of the most pressing difficulties in the management of these conditions is our present inability to accurately predict those women who are destined to have one or other of these serious complications. Unfortunately, this means that the conditions are often detected late with little or no time to offer effective treatments. This project builds on exciting preliminary evidence that suggests that a simple blood test from the mother in early pregnancy may be able to identify the women who will subsequently develop high blood pressure in late pregnancy, or the babies that will suffer impaired growth before delivery. In the future, such knowledge might then allow these women to receive more effective care, thereby improving their chance of a successful pregnancy. The project will also define the best time in pregnancy to perform the blood test and, if successful, could alter the very way women are currently looked after during their pregnancy.Read moreRead less
Expression And Functional Studies On The Novel Ovarian-expressed Serine Protease, Kallikrein 4, In Ovarian Tumorigenesis
Funder
National Health and Medical Research Council
Funding Amount
$410,250.00
Summary
Ovarian cancer is the leading cause of death from gynaecologic malignancies. In Australia, it is the most life-threatening of all gynaecological cancers. The major reason why the death rate has improved little in the last two decades is that ovarian cancer is detected too late and the type of treatment is not very effective. In this research, we are looking at a new protein, called the K4 protein, which belongs to the same family as the PSA enzyme that is used in the PSA test for prostate cancer ....Ovarian cancer is the leading cause of death from gynaecologic malignancies. In Australia, it is the most life-threatening of all gynaecological cancers. The major reason why the death rate has improved little in the last two decades is that ovarian cancer is detected too late and the type of treatment is not very effective. In this research, we are looking at a new protein, called the K4 protein, which belongs to the same family as the PSA enzyme that is used in the PSA test for prostate cancer. Our preliminary findings suggest that K4 is increased in the serous type ovarian cancer tumours so we intend to determine if K4 will be a useful bio-marker for this type of ovarian cancer. We also have made some interesting findings of some novel forms of the K4 protein and gene in ovarian cancer tissues and we intend to characterise these further to see if they might also be useful in detection of this disease. We are also studying the function and localisation of these different forms of K4 in cancer cells, to identify the exact role the enzyme performs in cancer development. These latter studies will help us understand the disease process better and may help us design new treatment approaches.Read moreRead less
Fluorescence Analysis Of The EGFreceptor Signalling Network
Funder
National Health and Medical Research Council
Funding Amount
$490,750.00
Summary
Receptors are cell-surface molecules that enable the cell to receive chemical messages from the outside environment and transmit these signals to the inside of cell. These messages tell the cells to grow, divide or die. The Epidermal Growth Factor Receptor is linked to a variety of cell signalling pathways that are critical to the normal functioning of cells. Conversely, abberations in Epidermal Growth Factor-mediated cell signalling leads to many types of cancers. A basic understanding of how t ....Receptors are cell-surface molecules that enable the cell to receive chemical messages from the outside environment and transmit these signals to the inside of cell. These messages tell the cells to grow, divide or die. The Epidermal Growth Factor Receptor is linked to a variety of cell signalling pathways that are critical to the normal functioning of cells. Conversely, abberations in Epidermal Growth Factor-mediated cell signalling leads to many types of cancers. A basic understanding of how the receptor is turned off or on is essential to designing drugs that can specifically inhibit its hyperproliferative response. High resolution structures of a key part of the Epidermal Growth Factor Receptor have identified several structural forms of the receptor that are providing valuable clues as to the structural basis for receptor activation. Armed with this information and advanced microscopic imaging technology we are in the unique position to probe receptor activation in living cells. This project seeks to determine which structural form of the receptor is responsible for transmission of cellular messages and how it is impaired in cancerous cells.Read moreRead less
Tubulovillous Adenomas In Colorectal Tumorigenesis
Funder
National Health and Medical Research Council
Funding Amount
$295,983.00
Summary
Bowel cancer is the second most common cancer affecting Australians today, and half of all patients will not survive their disease. Bowel cancer grows from small growths called polyps. In this project, we aim to investigate changes in genes found in a particularly aggressive type of bowel polyp called a tubulovillous adenoma. A better understanding of these gene changes will aid the future development of molecular tests for early detection and therapeutic options for the treatment of cancer.
The CpG Island Methylator Phenotype In Colorectal Cancer - Pathways And Precursors
Funder
National Health and Medical Research Council
Funding Amount
$517,272.00
Summary
Bowel cancer is one of the most common cancers affecting Australians. It will affect 1-23 Australians and is a leading cause of cancer-related death. If diagnosed early, bowel cancer is curable with surgery. Unfortunately, symptoms are often not present until the cancer is advanced, when the cure rate is only 55%. It has been recognised that there are different types of bowel cancer depending on different genes which can be inactivated abnormally. We propose that there are at least four differen ....Bowel cancer is one of the most common cancers affecting Australians. It will affect 1-23 Australians and is a leading cause of cancer-related death. If diagnosed early, bowel cancer is curable with surgery. Unfortunately, symptoms are often not present until the cancer is advanced, when the cure rate is only 55%. It has been recognised that there are different types of bowel cancer depending on different genes which can be inactivated abnormally. We propose that there are at least four different subgroups of bowel tumours, and that each of these may have different physical properties and responses to therapy. We aim to better characterise these subgroups to increase our understanding of how normal bowel can change into a small polyp, that may grow into a cancer. Understanding the gene changes leading to each subtype of bowel cancer will in the future allow the development gene markers for early detection as well as the possibility of individualised patient therapy. We are also studying tiny biopsies of normal bowel tissue from patients either with or without polyps, to try to understand the very earliest changes which may underly the development of a bowel polyp.Read moreRead less