Molecular Pathways Mediating Quiescence And Resistance In Leukaemia Stem Cells In Acute Myeloid Leukaemia.
Funder
National Health and Medical Research Council
Funding Amount
$100,381.00
Summary
Acute myeloid leukaemia (AML) is a devastating cancer of the blood and bone marrow which is rapidly fatal unless effectively treated with chemotherapy. AML is caused by genetic events that alter normal blood stem cells to give them a growth and survival advantage and also may confer resistance to chemotherapy in some cases. We will evaluate and target the mechanism of this resistance in laboratory models. This information can then be used to design new treatments to improve outcomes in AML.
Bone Marrow Endothelial Stem Cells Have The Capacity To Form Both The Endothelial And Haemopoietic Hierarchies
Funder
National Health and Medical Research Council
Funding Amount
$1,452,856.00
Summary
Blood cell formation is hierarchically organised; with hemopoietic stem cells (HSC) responsible for producing mature circulating blood cells. HSC reside in marrow near blood vessel cells. Although these play a key role in HSC regulation their origin in adults is poorly understood. We have demonstrated the existence of adult marrow vessel stem cells at the apex of a parallel hierarchy. Our objective is to characterise these in mice and humans and determine their role in blood malignancies.
Targeting Disease-initiating Cells In Myeloproliferative Neoplasms
Funder
National Health and Medical Research Council
Funding Amount
$477,170.00
Summary
The myeloproliferative neoplasms (MPN) are a related group of blood disorders. Despite the advent of targeted therapies, patients have significant ongoing morbidity, mortality and financial cost. A key reason underlying the persistence of disease is the presence of a stem cell pool that is resistant to targeted therapy. Clinical data has suggested that interferon may target these disease stem cells. We propose to use in vivo, validated disease models to investigate the role of interferon in MPN.
Mechanisms By Which Endothelial Selectins Regulate Normal And Malignant Stem Cell Fate
Funder
National Health and Medical Research Council
Funding Amount
$708,742.00
Summary
Hematopoietic stem and progenitor cells (HSPC) reside in the bone marrow (BM) and make all the cells of the blood system. We have found a molecule in the BM which when increased during inflammation, awakens normal HSPC. We previously showed this molecule also helps leukaemia and other cancer stem cells resist chemotherapy. We have now identified the mechanism why. These proposed studies open new therapeutic avenues to sensitise cancer stem cells to therapy enabling long-term cure.
Transcriptional Regulation Of Hematopoietic Commitment
Funder
National Health and Medical Research Council
Funding Amount
$289,985.00
Summary
Blood cell formation is a tightly regulated process and provides an important model for our understanding of blood homeostasis. Perturbations result in a number of disorders such as leukaemia. The application of stem cells to many diseases is being pursued; yet, to be successful knowledge of normal cellular behavior is crucial. I aim to improve our understanding of these processes and help to provide the framework for future studies aimed at more directly manipulating blood cell functions.
Characterizing The Cancer Stem Cell Population In Human Acute Myeloid Leukemia
Funder
National Health and Medical Research Council
Funding Amount
$380,665.00
Summary
At the root of many cancers are rare cells that sustain a tumour’s ability to grow and spread. These rare cells, termed “cancer stem cells”, are poorly understood and unfortunately are not eliminated by most current cancer therapies. Thus, after a course of chemotherapy that has eradicated the bulk of the tumour, these rare cells can persist and allow the disease to return. The aim of this proposal is to better characterize cancer stem cells so that improved therapies can be devised.
Characterisation Of Human Embryonic Stem Cell Differentiation To Haematopoietic Progenitors And Stem Cells
Funder
National Health and Medical Research Council
Funding Amount
$638,856.00
Summary
Blood stem cells, which are found in the bone marrow, are currently used for treating human blood disorders including leukemia and lymphoma. However, for the majority of bone marrow transplant candidates, suitable donors cannot be found. Using embryonic stem cells, this project aims to define the conditions required to generate blood stem cells in the laboratory. The aim of the work is to provide a new source of blood stem cells that could be used in place of donor derived bone marrow.
Discovery Of New Targets For Therapy That Kills Non-dividing Cancer Stem Cells
Funder
National Health and Medical Research Council
Funding Amount
$375,828.00
Summary
I am a clinical haematologist that specialises in treating patients with a terrible form of blood cancer, acute myeloid leukaemia. Survival rates for this disease have not changed for 30 years and we now realise this is because we are not targetting the queen bee of the cancer - the cancer stem cell. In this project I am looking for cell markers that are only present in rare, truly latent non-dividing cancer stem cells effectively change a remission into a cure.