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Identifying Regulators Of The DNA Damage Response And Tumourigenesis Using C. Elegans
Funder
National Health and Medical Research Council
Funding Amount
$514,367.00
Summary
By the age of 85, one in two men and one in three women in Australia will develop cancer. Regrettably, not all cancers respond to current therapies. Recently a new mechanism that prevents certain cancers from responding to chemotherapy has been identified, involving a protein called HIPK. We are using a simple model system, the nematode Caenorhabditis elegans, to discover ways in which this block to successful cancer treatment can be overcome, with the view to developing new therapeutic agents.
Temporal And Spatial Regulation Of Caspases In Development And Metamorphosis
Funder
National Health and Medical Research Council
Funding Amount
$473,250.00
Summary
Cell death by a special process called apoptosis is a means of deleting unwanted and harmful cells from the body. Extensive apoptosis occurs during foetal development which is required to get rid of many excess cells produced during the growth of the embryo. Selective apoptosis is also essential for the formation of different tissues and organs in developing foetus. In the adult, apoptosis is required for proper functioning of the immune system, to remove virus infected and cancer cells and in g ....Cell death by a special process called apoptosis is a means of deleting unwanted and harmful cells from the body. Extensive apoptosis occurs during foetal development which is required to get rid of many excess cells produced during the growth of the embryo. Selective apoptosis is also essential for the formation of different tissues and organs in developing foetus. In the adult, apoptosis is required for proper functioning of the immune system, to remove virus infected and cancer cells and in general to maintain the correct number of cells in the body. As such, misregulated apoptosis is associated with the pathogenesis of a wide array of diseases such as autoimmune diseases, many forms of cancer and neurodegenerative disorders (such as Alzheimer's and Parkinson's diseases), heart disease, ischaemia and other conditions. To understand, manage and treat disorders that result from aberrant apoptosis, we need to know at molecular and cellular level, how apoptosis is brought about and how it is regulated. We have been studying these processes in detail for several years. Central to the apoptotic execution of cell death are a group of proteases that target many cellular proteins for specific cleavage. The activation of these proteases is the crucial step in the initiation of apoptosis and therefore each cell has developed complex ways to control this process. In the present proposal, we aim to study regulation of caspases that are involved in developmental apoptosis. Furthermore, we plan to identify proteins that are responsible for the regulation of caspase activation.Read moreRead less
TAF8 is a small protein that is associated with the general transcriptional apparatus. TAF8 is not an essential part of the general transcriptional machinery, but rather a regulatory molecule that appears to dictate how the machinery is used to express different genes. The absence of TAF8 leads to expression of genes controlling cell death. Since the avoidence of cell death is essential to the development of cancer these results will lead to a better understanding of how cancer develops.
Regulation Of Nuclear Calcium Concentration In The Life Or Death Of Cells
Funder
National Health and Medical Research Council
Funding Amount
$195,047.00
Summary
The nucleus is the most prominent of all cell organelles and contains the primary genetic material for cellular development and growth. It performs some of the most important functions in the life and death of all living cells. However, little is known about many of the regulatory signals and events that control nuclear function. We will use new genetically-encoded sensor molecules that a living cell can be instructed to produce at various internal locations to explore important features of cell ....The nucleus is the most prominent of all cell organelles and contains the primary genetic material for cellular development and growth. It performs some of the most important functions in the life and death of all living cells. However, little is known about many of the regulatory signals and events that control nuclear function. We will use new genetically-encoded sensor molecules that a living cell can be instructed to produce at various internal locations to explore important features of cell control. This study will look specifically at how changes in the concentration of ionised Ca2+ in the nucleus control the switching on of genes and the initiation of programmed cell death pathways. This information is of significance to our understanding of normal cell growth and development, as well as abnormal growth (e.g. cancer).Read moreRead less
Post-GWAS Functional Characterisation Of Breast Cancer Susceptibility Loci
Funder
National Health and Medical Research Council
Funding Amount
$764,632.00
Summary
Recent studies have identified regions within the human genome in which DNA sequence variations are associated with an increased risk of breast cancer. Several of these regions do not contain any known genes, suggesting that regulatory DNA sequences are responsible for the associated risk. The aim of this proposal is to identify and characterise these DNA sequences. Understanding how sequences variations in these regions contribute to breast cancer will provide novel avenues for therapy.
Genomic Characterisation Of Asbestos Related Lung Cancer
Funder
National Health and Medical Research Council
Funding Amount
$88,099.00
Summary
Lung cancer causes more deaths in Australia than any other cancer. Smoking is the main cause, but people exposed to asbestos are also at risk, and it can be difficult to know whether a case is due to tobacco, asbestos or both. We will study lung cancer genes in people with asbestos exposure to find whether asbestos lung cancer has a specific pattern of abnormal genes (signature). If so, this could help people entitled to compensation, and also point to new treatments for asbestos lung cancer
Retrotransposon Regulation Of The Human Innate Immune Response
Funder
National Health and Medical Research Council
Funding Amount
$231,937.00
Summary
Complete sequencing of the human genome has revealed the positions of approximately 20,000 genes. In addition, nearly 50% of the human genome is comprised of repetitive sequences previously thought of as junk DNA. Numerous studies are now finding that this DNA actually has a variety of important functions, particularly in the control of gene activity. This project will examine the relationships between gene expression and nearby repetitive sequences during the innate immune response in humans.