Migration And Differentiation Of Dendritic Cells And Monocytes In Inflammatory Arthritis.
Funder
National Health and Medical Research Council
Funding Amount
$280,000.00
Summary
Dendritic cells and monocytes are of critical importance to the development and persistence of inflammatory disease in rheumatoid arthritis. Blocking this process at key strategic intervention points is a major focus of research to improve disease treatment. These studies examine the critical processes and molecules that control the entry of these cells to the joint in mice, and the derivation of cells that contribute directly to bone damage in the disease.
Monocytes/macrophages In Chronic Liver Diseases: Cross-talk With Hepatocytes And Nonparenchymal Cells And Role In Progressive Liver Injury
Funder
National Health and Medical Research Council
Funding Amount
$598,645.00
Summary
More than 170 million people world-wide are chronically infected with the hepatitis C virus. Approximately 10-15% of chronically infected subjects develop cirrhosis with its attendant risks of liver failure and hepatocellular carcinoma. The objective of this important project is to examine the mechanisms by which monocytes and macrophages (cells of the immune system) enhance or impair the progression of liver disease and response to antiviral treatment in patients with chronic hepatitis C.
Role Of Bone-associated Macrophages In Bone Remodelling And Bone Disease
Funder
National Health and Medical Research Council
Funding Amount
$564,963.00
Summary
Musculoskeletal diseases, including osteoporosis and osteoarthritis, are a national and international health and research priorities. Over 3 million Australians suffer from arthritis and musculoskeletal conditions and their social and economic impact is expected to dramatically increase in the next 20 years as a result of the aging population. Early diagnosis, prevention and treatment of many musculoskeletal diseases are currently inadequate. Consequently, there is a high demand for effective tr ....Musculoskeletal diseases, including osteoporosis and osteoarthritis, are a national and international health and research priorities. Over 3 million Australians suffer from arthritis and musculoskeletal conditions and their social and economic impact is expected to dramatically increase in the next 20 years as a result of the aging population. Early diagnosis, prevention and treatment of many musculoskeletal diseases are currently inadequate. Consequently, there is a high demand for effective treatment options. This project grant application proposes a novel line of scientific investigation that will provide greater understanding of the contribution of macrophages (a cell type that has important roles in normal tissue maintenance and defense against infection) in bone remodelling and disease. Bone is continuously remodelled and replaced to maintain skeletal strength and mineral metabolism. We have shown that a population of macrophages is intimately associated with bone and propose that these cells play an important part in regulating bone remodelling. Macrophages have been implicated in many diseases that have damaging consequences on bone, including osteoporosis and several forms of arthritis, linking aberrant macrophage function to disease-associated bone damage. This project aims to characterize this population of bone-associated macrophages and determine their ability to influence the function of other cells integrally involved in bone remodelling. We will also undertake studies in animal models to determine whether these cells are required for bone remodelling and-or damage. Detailed description of the novel role of macrophages in bone biology will facilitate the development of superior therapeutics, preventatives and cures for bone diseases.Read moreRead less
Identification Of Oncogenes From Myeloid Leukaemias By Retroviral Expression Cloning
Funder
National Health and Medical Research Council
Funding Amount
$552,000.00
Summary
The success rates for treatment of most myeloid leukaemias remain relatively poor, with 5-year survival rates of 40-50% overall. Thus there is a clear need for improvements in diagnosis and particularly treatment. An important and relatively new approach for doing this is to target the specific molecular and genetic alterations that lead to these diseases. This requires the identification of these alterations, particularly the oncogenes ('cancer genes') that cause or contribute to the various fo ....The success rates for treatment of most myeloid leukaemias remain relatively poor, with 5-year survival rates of 40-50% overall. Thus there is a clear need for improvements in diagnosis and particularly treatment. An important and relatively new approach for doing this is to target the specific molecular and genetic alterations that lead to these diseases. This requires the identification of these alterations, particularly the oncogenes ('cancer genes') that cause or contribute to the various forms of myeloid leukaemia. However in many cases (up to 50%), the key oncogenes involved in have not and-or cannot be identified using current methods. This project aims to develop and apply a powerful technique called 'retroviral expression cloning' for the identification of oncogenes involved in myeloid leukaemia. In essence our approach is to identify oncogenes from myeloid leukaemia samples on the basis of their function - that is, by virtue of their ability to induce dysregulated or uncontrolled growth of blood-derived cells in culture.Read moreRead less
Dissecting FLT3 Signalling In Acute Myeloid Leukaemia
Funder
National Health and Medical Research Council
Funding Amount
$498,328.00
Summary
Each year approximately 6000 Australian adults and children are diagnosed with leukaemia, lymphoma or a related blood disorder, accounting for about 15% of all cancers. Acute Myeloid Leukaemia (AML) is the most common form of leukaemia in adults resulting from an accumulation of immature myeloid cells in the bone marrow and peripheral blood as a result of sustained, abnormal cell growth and survival together with a block in normal blood cell formation. There is still a major research effort aime ....Each year approximately 6000 Australian adults and children are diagnosed with leukaemia, lymphoma or a related blood disorder, accounting for about 15% of all cancers. Acute Myeloid Leukaemia (AML) is the most common form of leukaemia in adults resulting from an accumulation of immature myeloid cells in the bone marrow and peripheral blood as a result of sustained, abnormal cell growth and survival together with a block in normal blood cell formation. There is still a major research effort aimed at understanding the mechanisms that lead to AML formation and it is clear that multiple AML oncogenes and tumour suppressors remain to be identified. Identification of further events involved in AML is important as it will provide avenues for more specific and less toxic treatments. These are needed because current success rates for AML remain relatively poor. It is critical that research into the understanding of the pathways and events involved in AML keeps pace with the rapid development of new approaches for therapeutic agents. Together this will greatly increase the scope for therapeutic intervention over the next decade. In this application we investigate the role of a new molecular pathway in AML. Our studies have identified a gene of particular interest that we propose normally prevents AML formation and therefore is frequently turned off by the cellular changes that lead to AML. We propose that silencing of this gene is particularly important in those AML cases which have mutations in the cell surface receptor FLT3 (about 30% of AML cases). We will use a number of molecular and cell biology approaches to manipulate this gene in mouse cell lines, normal mouse cells and human AML cells. A better understanding of the role of this gene and the associated pathway involving FLT3 may generate new leads for therapeutic approaches.Read moreRead less