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Adaptive Evolution of BRCA1 in Ancestral Mammals. This project investigates adaptive evolution of BRCA1 in the early radiation of mammals. We will test the hypothesis that the evolution of mammary glands and X chromosome inactivation has resulted in modification of the BRCA1 protein sequence as it aquired new roles in these processes. We will also investigate the importance of these changes inducing compensatory changes in other parts of the protein.
Devil Facial Tumour Disease: Cytogenetic Clues to Transmission and Development. Devil Facial Tumour Disease is a fatal cancer that is decimating Tasmanian devils. Preliminary work suggests that tumours from different animals have identical sets of highly abnormal chromosomes, including a giant marker chromosome. We will use DNA probes to 'paint' abnormal tumour chromosomes to discover markers for diagnosis, and identify genes contributing to tumour development and immune suppression. Most import ....Devil Facial Tumour Disease: Cytogenetic Clues to Transmission and Development. Devil Facial Tumour Disease is a fatal cancer that is decimating Tasmanian devils. Preliminary work suggests that tumours from different animals have identical sets of highly abnormal chromosomes, including a giant marker chromosome. We will use DNA probes to 'paint' abnormal tumour chromosomes to discover markers for diagnosis, and identify genes contributing to tumour development and immune suppression. Most importantly, we will test our hypothesis that tumours all arose from a single ancestral cancer cell that is transmitted between animals. A cellular transmission has frightening implications for spread of disease, but will allow us to develop appropriate therapeutic strategies to save a unique Australian marsupial from extinction.Read moreRead less
Discovery of novel microRNA biogenesis and functional components. Discovery of novel microRNA components will provide new strategies for confronting a diverse array of challenges Australia faces, such as the increasing rates of certain cancers in our population, to stresses on our crop plants faced with environmental changes. The biological mechanisms underlying these disparate problems are unified by microRNA involvement in many instances. By finding microRNA controlling factors common to all h ....Discovery of novel microRNA biogenesis and functional components. Discovery of novel microRNA components will provide new strategies for confronting a diverse array of challenges Australia faces, such as the increasing rates of certain cancers in our population, to stresses on our crop plants faced with environmental changes. The biological mechanisms underlying these disparate problems are unified by microRNA involvement in many instances. By finding microRNA controlling factors common to all higher organisms, we expect our community will benefit from the increased knowledge base that will help our researchers adopt new strategies in fighting diseases and improving our agricultural industry.Read moreRead less
Discovering mechanisms of primary embryonic tissue migration through live cell imaging and novel genetic approaches. The studies proposed here will provide concepts and knowledge about the molecular basis of cell migration that will impact on diverse aspects of human health, such as the causes and nature of tumour metastasis and our understanding of the developmental basis of birth defects. In addition, understanding cell migration mechanisms will allow us to better predict or control the behav ....Discovering mechanisms of primary embryonic tissue migration through live cell imaging and novel genetic approaches. The studies proposed here will provide concepts and knowledge about the molecular basis of cell migration that will impact on diverse aspects of human health, such as the causes and nature of tumour metastasis and our understanding of the developmental basis of birth defects. In addition, understanding cell migration mechanisms will allow us to better predict or control the behaviour of therapeutic stem cells introduced into the body.Read moreRead less