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Biomathematical Analysis Of Cell Invasion: Migration Of Neural Crest Cells To Form The Enteric Nervous System
Funder
National Health and Medical Research Council
Funding Amount
$449,484.00
Summary
Extending scientific studies to a mathematical level is the way to produce deep understanding and control. Mathematics has been applied less to biology, particularly the biology of development, than to other branches of science, no doubt due to the innate complexity and technical difficulties of seeing and measuring what is actually going on. Labelling, imaging and computational tools to visualise biological processes are only now becoming available. To build our bodies during embryonic developm ....Extending scientific studies to a mathematical level is the way to produce deep understanding and control. Mathematics has been applied less to biology, particularly the biology of development, than to other branches of science, no doubt due to the innate complexity and technical difficulties of seeing and measuring what is actually going on. Labelling, imaging and computational tools to visualise biological processes are only now becoming available. To build our bodies during embryonic development, cells must move; this is called cell migration. The same process occurs throughout life in wound repair. Uncontrolled migration is the hallmark of malignant cancers, where it is called invasion. The molecular mechanisms in cells that allow them to move are just beginning to be understood. However, the big questions determining the general rules of migration are more difficult to approach. Here are some examples of such questions. When to migrate? Where to migrate to? Which pathways? How many cells to migrate? How far? How fast? How to stop? Such simple questions are still unanswered. We are pioneering a novel and unique approach combining imaging of real cells migrating in real tissues (digital time-lapse movies) with mathematical modelling to understand the driving forces of cell migration-invasion. This technology is here applied to a particular example of cell migration where precursor nerve cells migrate all the way along the length of the gastro-intestinal tract in early development. This process gives rise to fatal birth defects associated with migration failure. The development of the nervous system in the gut has features in common with all other migrations and invasions, normal and pathological. A much more profound knowledge of the big picture of the developmentally and clinically crucial process of cell migration-invasion will emerge from this marriage of biological experimentation and mathematical modelling.Read moreRead less
Regulation of DNA replication initiation during Drosophila development. This proposal addresses the fundamental issue of the regulation of DNA
replication during development, using the animal model system, Drosophila melanogaster. This research uses a whole animal genetic and cell biological approach to explore DNA replication regulatory mechanisms that are present in multicellular organisms but not in yeast. The work undertaken here will make a significant contribution to our understanding of ....Regulation of DNA replication initiation during Drosophila development. This proposal addresses the fundamental issue of the regulation of DNA
replication during development, using the animal model system, Drosophila melanogaster. This research uses a whole animal genetic and cell biological approach to explore DNA replication regulatory mechanisms that are present in multicellular organisms but not in yeast. The work undertaken here will make a significant contribution to our understanding of DNA replication regulation within a developing organism that will be relevant to all animals.Read moreRead less
Unveiling and characterisation of a fundamental pathway important in cell division. This work will have a major impact by producing top quality research that addresses a fundamental biological question of relevance to all organisms. The research will advance understanding of genetic factors important in foetal and early childhood development and proliferative disorders that occur during ageing. This work will provide intellectual and practical training to Honours and PhD students and postdoctora ....Unveiling and characterisation of a fundamental pathway important in cell division. This work will have a major impact by producing top quality research that addresses a fundamental biological question of relevance to all organisms. The research will advance understanding of genetic factors important in foetal and early childhood development and proliferative disorders that occur during ageing. This work will provide intellectual and practical training to Honours and PhD students and postdoctoral researchers in the disciplines of Molecular Genetics, Molecular & Cellular Biology, Developmental Cell Biology, Mass Spectrometry and Proteomics, which will be of immense benefit to their scientific careers and the Australian scientific community.Read moreRead less
Constructing an embryo. This project investigates the cellular and molecular mechanisms underlying temporal and spatial organisation in the eutherian preimplantation embryo. It will examine: the relative roles of cell cycle and circadian clocks in developmental timing; the molecular mechanism by which intercellular adhesion patterns influence spatial organisation; the extent to which marsupials use similar timing and spatial localisation mechanisms to eutherians; the impact of in-vitro manipulat ....Constructing an embryo. This project investigates the cellular and molecular mechanisms underlying temporal and spatial organisation in the eutherian preimplantation embryo. It will examine: the relative roles of cell cycle and circadian clocks in developmental timing; the molecular mechanism by which intercellular adhesion patterns influence spatial organisation; the extent to which marsupials use similar timing and spatial localisation mechanisms to eutherians; the impact of in-vitro manipulations over the first 5 days of mouse pregnancy on embryonic temporal and spatial organisation.Read moreRead less
Rapid functional analysis of genes involved in skeletal development. Abnormalities of the skeleton are of enormous clinical significance in terms of both number of individuals affected and the cost of treatment. Data derived from this project will underpin targeted research on the mechanisms of inherited and common diseases of cartilage and bone, yielding novel diagnostic and therapeutic targets. In addition, the improved knowledge of cartilage and bone cell development will inform new approache ....Rapid functional analysis of genes involved in skeletal development. Abnormalities of the skeleton are of enormous clinical significance in terms of both number of individuals affected and the cost of treatment. Data derived from this project will underpin targeted research on the mechanisms of inherited and common diseases of cartilage and bone, yielding novel diagnostic and therapeutic targets. In addition, the improved knowledge of cartilage and bone cell development will inform new approaches for developing stem cell therapies and the production of novel biomaterials for the repair of bones and joints. The outcomes of this study will therefore benefit the full spectrum of society from infants to the aged.Read moreRead less
Isolation and characterization of genes regulating female reproductive organ development in plants. Genes that regulate female reproductive organ development are of immense value for Australia as tools for seed improvement. Those from our preliminary screen have convinced our industry partners that they can be agents for engineering of apomixis or creation of fertile seed without fertilisation. This will allow the capture of hybrid vigour in wheat and rice, for which commercial hybrid seed prod ....Isolation and characterization of genes regulating female reproductive organ development in plants. Genes that regulate female reproductive organ development are of immense value for Australia as tools for seed improvement. Those from our preliminary screen have convinced our industry partners that they can be agents for engineering of apomixis or creation of fertile seed without fertilisation. This will allow the capture of hybrid vigour in wheat and rice, for which commercial hybrid seed production is not currently available. In wheat alone, apomixis presents for Australia an economic value of more than Aus$ ½ billion per annum. Furthermore, controlled apomixis will accelerate breeding programs that will bring drought resistance and minimal fertiliser requiring varieties to the farmer.Read moreRead less