Determination Of The Cellular Origins Of Breast Cancer
Funder
National Health and Medical Research Council
Funding Amount
$705,563.00
Summary
Breast cancer is a highly heterogeneous disease with multiple molecular and histological subtypes. We propose to use novel genetically engineered mice to understand breast inter-tumoral heterogeneity by dissecting the cells of origin of breast cancer in vivo. Initially, we will examine whether long-lived stem or progenitor cells are the targets of breast carcinogenesis induced by a progesterone derivative using our state-of-the-art multi-coloured reporter models to track the cells in vivo.
Breast cancer is the most common malignancy among females which affects 1 in 8 women. Normal cells only divide when they receive a stimulus however cancer cells divide uncontrollably and are able to spread to other sites in the body, a process known as metastasis. We have identified a cancer suppressing gene which regulates cancer spread. This grant aims to characterise the mechanisms by which this gene controls cell movement and breast cancer spread.
Characterisation Of PI3-kinase-dependent Signalling Networks In Breast Cancer
Funder
National Health and Medical Research Council
Funding Amount
$915,182.00
Summary
Breast cancer affects 1 in 8 women in Australia. Cancer cells are able to spread to other sites in the body by a process known as metastasis which is the leading cause of breast cancer death. We have identified a gene which controls breast cancer growth and metastasis. This grant aims to elucidate the mechanisms by which this gene co-operates with another gene to regulate breast cancer growth and metastasis which thereby may affect disease outcome.
Role Of INPP4B And Related Proteins In Human Cancer.
Funder
National Health and Medical Research Council
Funding Amount
$650,694.00
Summary
Breast cancer is the most common malignancy among females, affecting 1 in 9 women. Cells normally divide only when they receive a stimulus. The PI3K pathway, which responds to these stimuli, has been implicated in cancer and when mutated induces cells to multiply uncontrollably and invade surrounding tissue. This grant aims to characterise the role of a cancer suppressing gene and a related family member play in the development of human breast cancer.
Linking Breast Development To Bone Metastasis: Role For The Osteogenic Transcription Factor Runx2 During Breast Carcinogenesis
Funder
National Health and Medical Research Council
Funding Amount
$565,145.00
Summary
Bone is the principle metastasis site of breast cancer and represents a major cause of morbidity and mortality. Runx2 is one potential candidate gene mediating breast cancer metastasis. Using mice with altered Runx2 levels and breast cancer models, this study will examine the role of Runx2 in breast cancer bone metastasis. Identification of a single gene that controls both breast and bone would open a new area of breast cancer research and a new gene against which therapies could be developed.
Targeting Tumour Angiogenesis In Breast Cancer By Altering MicroRNA Signalling
Funder
National Health and Medical Research Council
Funding Amount
$660,151.00
Summary
Despite advances in treatment, breast cancer remains one of the leading underlying causes of death and disability in Australia. Preventing cancer spread therefore has the potential for enormous economic and social outcomes. Small RNAs have recently been identified as key regulators of cancer cell biology. This project seeks to take a leadership role in the area of small RNA biology by targeting small RNAs implicated in blood vessel formation as a means of suppressing breast cancer spread.
The Clinical Significance Of Sex Hormone Crosstalk In Estrogen Receptor Positive Breast Cancer.
Funder
National Health and Medical Research Council
Funding Amount
$1,009,006.00
Summary
Breast cancer is mainly a disease in which the sex hormone estrogen stimulates uncontrolled growth. We have recently discovered that other sex hormones, including progesterone and androgen, can redirect the actions of estrogen in breast cancers to halt growth or make a tumour disappear. This study will examine the complex interaction between all three sex hormones to develop new, more effective strategies for treating breast cancer.
Characterising The Tumour Suppressive Function Of Myoepithelial Cell Stefin A In Ductal Carcinoma In Situ
Funder
National Health and Medical Research Council
Funding Amount
$474,840.00
Summary
Ductal carcinoma in situ (DCIS) is a pre-invasive stage of breast cancer, whereby the tumour cells remain restrained by myoepithelial cells that surround breast ducts. Predicting which cases of DCIS will later develop invasive cancer is difficult, meaning that the majority of patients have treatment. Stefin A is a protease inhibitor in myoepithelial cells shown to block cancer invasion and we aim to test the function of this protein in DCIS and its potential as a prognostic marker.
Triple negative breast cancer (TNBC) is an aggressive disease subtype that lacks targeted therapies. We have identified a protein associated with TNBC termed SgK269 that regulates the transmission of signals instructing the cell to grow and migrate. SgK269 associates with a closely-related protein termed SgK223 to form a signalling complex. The aim of this project is to characterise the role of this signalling complex in TNBC and determine whether it represents a potential therapeutic target.
TARGETING OF G-CSF IN COMBINATION WITH STANDARD THERAPY FOR ADVANCED BREAST CANCER
Funder
National Health and Medical Research Council
Funding Amount
$583,166.00
Summary
Nearly all deaths caused by breast cancer are due to the spread of the cancer to other tissues such as lung and bone, ultimately leading to organ failure and death. The process of spread of cancer cells is not well understood, but it is becoming clear that cells of the immune system are key regulators of the spread of breast cancer. It is the aim of this project to target two types of immune cells, macrophages and neutrophils, seeking therapies that prevent the growth of secondary cancers.