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The Role Of The EphA1 In The Normal Epithelial Organs And In Epithelial Tumour Progression.
Funder
National Health and Medical Research Council
Funding Amount
$564,500.00
Summary
The Eph family of proteins were initially found to be important in normal development. In humans this corresponds to the first 12 weeks of pregnancy. In parallel with these studies, other work provided evidence of abnormally high levels of these proteins in a number of human cancers. More recent evidence suggests that these proteins have important roles in the maintenance of normal tissues and in non-malignant diseases. This proposal seeks to understand how one of these proteins (EphA1) works in ....The Eph family of proteins were initially found to be important in normal development. In humans this corresponds to the first 12 weeks of pregnancy. In parallel with these studies, other work provided evidence of abnormally high levels of these proteins in a number of human cancers. More recent evidence suggests that these proteins have important roles in the maintenance of normal tissues and in non-malignant diseases. This proposal seeks to understand how one of these proteins (EphA1) works in the cells which form the skin, liver, kidneys, breast and prostate. These cells also form the lining of the mouth, stomach, bowel and lungs. Understanding how the EphA1 protein and other members of this family cooperate to control the development and maintenance of these organs will allow us to determine whether this protein might be involved in congenital defects and diseases in these organs (such as kidney failure, cirrhosis of the liver and skin diseases). A second main aim of this project is to explore further the observation that Eph proteins are abnormally highly expressed in a wide rangre of human cancers. This abnormal expression is directly correlated with the tumours spreading throughout the body. EphA1 is abnormally highly expressed in cancers of the bowel, lung, breast and prostate. These are the commonest cancers in man and some of the most difficult to treat. The work proposed asks how EphA1 contributes to the development and progression of these cancers. These results will have very direct implications for the development of therapies which target the EphA1 protein.Read moreRead less
INVESTIGATIONS INTO THE BIOLOGICAL FUNCTIONING AND PROGNOSTIC VALUE OF NOVEL METASTATIC MARKERS FOR BREAST CANCER
Funder
National Health and Medical Research Council
Funding Amount
$423,564.00
Summary
Breast cancer is the most malignant tumour of women and, despite great advances in detection and treatment, some 30% of women who present with primary breast cancer eventually relapse or die of their disease. Genetic studies have resulted in the rapid identification of the one-third of women at high risk of developing breast cancer because of a family history of the disease: it is hoped that these women will eventually benefit from advances in gene therapy now being developed. For the majority o ....Breast cancer is the most malignant tumour of women and, despite great advances in detection and treatment, some 30% of women who present with primary breast cancer eventually relapse or die of their disease. Genetic studies have resulted in the rapid identification of the one-third of women at high risk of developing breast cancer because of a family history of the disease: it is hoped that these women will eventually benefit from advances in gene therapy now being developed. For the majority of women developing breast cancer, however, the outcome, or prognosis, remains uncertain. The most important indicators of outcome are obtained by study of the excised cancer tissue, and these relate to the speed of growth of the cancer cells and their ability to migrate, or metastasise, to other sites in the body. Studies of cancer tissue using molecular cell biological methods has enabled the identification of several markers that are proving useful as indicators of outcome, and further understanding of the biological functioning of these markers will enable these molecules to be targetted in new treatments aimed at preventing the spread of the cancer. The present study will examine the appearance of new markers for cell migration among breast cancers and measure their value as indicators of outcome. One molecule in particular may be useful as a therapeutic target since it is used by migrating cells during development but is not expressed by normal (non-cancer) adult tissue cells. Towards this, the project will seek to understand how this molecule functions in cell migration.Read moreRead less
Mechanism Of Breast Cancer Metastasis: Tumour Cell Remodelling Of The Extracellular Matrix
Funder
National Health and Medical Research Council
Funding Amount
$377,331.00
Summary
The main complication in breast cancers leading to death is metastatic relapse. This research aims to understand the role for a protease that promotes spread of breast cancer to the lymph nodes and lungs. The outcomes will identify a novel process that leads to lymph node metastasis and offer a new target for therapies that prevent relapse and tests to identify breast cancer patients at risk of relapse.
Regulation of tissue morphogenesis in reproductive function and metastatic cancer. Infertility, endocrine and metabolic disorders and reproductive cancers are all increasing medical problems and principal contributors to morbidity and mortality in the Australian community. This research takes the novel approach of investigating the mechanisms of dynamic remodeling in reproductive organs. Novel hormonally controlled mechanisms of tissue remodeling unique to reproductive organs and cancers in ad ....Regulation of tissue morphogenesis in reproductive function and metastatic cancer. Infertility, endocrine and metabolic disorders and reproductive cancers are all increasing medical problems and principal contributors to morbidity and mortality in the Australian community. This research takes the novel approach of investigating the mechanisms of dynamic remodeling in reproductive organs. Novel hormonally controlled mechanisms of tissue remodeling unique to reproductive organs and cancers in adults have been discovered. The results are being applied to new medical alternatives for infertile patients and new diagnostics and therapeutics for patients with metastatic cancers. The information is also being applied to improve reproductive efficiency in animal production industries.Read moreRead less
The role of retinoic acid signalling in the development of the oesophageal epithelium. Oesophageal adenocarcinoma (OAC) is a disease with increasing incidence. The majority of patients with OAC are diagnosed when the cancer is at a late stage and therefore treatment options are limited, meaning the disease is almost invariably fatal. OAC arises from the precancerous condition, Barrett's oesophagus, which occurs as a consequence of chronic reflux, although the key processes driving its developmen ....The role of retinoic acid signalling in the development of the oesophageal epithelium. Oesophageal adenocarcinoma (OAC) is a disease with increasing incidence. The majority of patients with OAC are diagnosed when the cancer is at a late stage and therefore treatment options are limited, meaning the disease is almost invariably fatal. OAC arises from the precancerous condition, Barrett's oesophagus, which occurs as a consequence of chronic reflux, although the key processes driving its development are unknown. This project aims to better understand the critical first step in the progression to cancer and thus expand the scope for the development of therapies, particularly those aimed at early intervention, and tools that predict progression.Read moreRead less