Impaired Bone Remodelling Leads To Failure Of Orthopaedic Prostheses
Funder
National Health and Medical Research Council
Funding Amount
$515,917.00
Summary
The failure of bone prostheses is becoming a major health problem. More than 26,000 hip, and an equal number of knee, replacements were performed in Australia in 2002 with the number increasing between 5%-10% each year for the previous 10 years. Disturbingly, the incidence of revision hip surgery in Australia is now more than 15%, meaning that, despite the impressive success of joint replacement surgery, a significant number of arthroplasties fail. It is becoming more common for young, active in ....The failure of bone prostheses is becoming a major health problem. More than 26,000 hip, and an equal number of knee, replacements were performed in Australia in 2002 with the number increasing between 5%-10% each year for the previous 10 years. Disturbingly, the incidence of revision hip surgery in Australia is now more than 15%, meaning that, despite the impressive success of joint replacement surgery, a significant number of arthroplasties fail. It is becoming more common for young, active individuals to receive joint replacement surgery to improve their quality of life. This, combined with increasing life expectancy, and the known higher rate of failure of joint replacements in younger patients, means that the morbidity of a failed replacement, and the mobidity and associated mortality of revision surgery, will become an increasingly important health issue, with a major impact upon health budgets. The overwhelming majority of hip and knee prostheses have metal or ceramic on polyethylene bearing surfaces. It is now apparent that most implants fail due to bone loss around them leading to loosening, and evidence is accumulating that polyethylene wear particles are a major contributing factor to this process. It is therefore vital that we obtain better understanding of the causes of implant failure in order to extend the life of these implants and this project is designed to do so.Read moreRead less
Identification of Biological pathways regulated by circular RNAs. Circular RNAs (circRNAs) are a, recently discovered molecule. circRNAs are highly abundant and expressed in a tissue and disease specific manner. Yet, currently the understanding of how circRNAs regulate biological processes is very poor. This project aims to use pooled shRNA libraries to screen a large panel of cell lines and systematically identify cellular activities that are regulated by circRNAs. The expected outcome of this ....Identification of Biological pathways regulated by circular RNAs. Circular RNAs (circRNAs) are a, recently discovered molecule. circRNAs are highly abundant and expressed in a tissue and disease specific manner. Yet, currently the understanding of how circRNAs regulate biological processes is very poor. This project aims to use pooled shRNA libraries to screen a large panel of cell lines and systematically identify cellular activities that are regulated by circRNAs. The expected outcome of this study will be a catalogue of functionally active circRNAs. Over the past decades, the wealth of knowledge on the function of linear mRNAs has had a significant impact on medicine and agriculture. Similarly understanding how circRNAs regulate cellular activities may have an analogous impact on humans.Read moreRead less
New mechanisms regulating the biogenesis of extracellular vesicles. Extracellular vesicles are small packages that contain active components derived from the cell of origin. These vesicles, released by most cell types, are critical for communication between cells. However, the processes of their formation and release remain poorly understood. This project aims to explore how ubiquitination, a type of protein modification system, controls the production of extracellular vesicles. Using a strong c ....New mechanisms regulating the biogenesis of extracellular vesicles. Extracellular vesicles are small packages that contain active components derived from the cell of origin. These vesicles, released by most cell types, are critical for communication between cells. However, the processes of their formation and release remain poorly understood. This project aims to explore how ubiquitination, a type of protein modification system, controls the production of extracellular vesicles. Using a strong collaborative team and highly innovative approaches, the project will generate new knowledge to inform how cells communicate. Expected outcomes include knowledge of broad significance to cell biology, that can be leveraged to develop extracellular vesicles as tools for various biotechnology applications in the future.Read moreRead less
Regulation of autophagy dependent cell and tissue deletion. This project aims to elucidate novel mechanisms that regulate autophagy-depdendent cell death during animal development. It will combine the power of Drosophila genetics with multidisciplinary approaches, such as proteomics, bioinformatics and cell biology. Given the conserved nature of autophagy the oucomes will provide highly topical and exciting new knowledge of broad biological significance. The project will help establishing inter ....Regulation of autophagy dependent cell and tissue deletion. This project aims to elucidate novel mechanisms that regulate autophagy-depdendent cell death during animal development. It will combine the power of Drosophila genetics with multidisciplinary approaches, such as proteomics, bioinformatics and cell biology. Given the conserved nature of autophagy the oucomes will provide highly topical and exciting new knowledge of broad biological significance. The project will help establishing international collaborations, enhancing Australia’s competitiveness and reputation in an important area of research, and provide training of HDR students in skills across a range of areas. In the long-term the research findings may translate into improved agriculture, food production and human health outcomes.Read moreRead less
HEN1 is a regulator of piRNA metabolism, transcriptional regulation and mammalian male fertility. This project is to define the biochemistry of a previously uncharacterized protein in male fertility using a unique mouse model and innovative DNA and protein technologies. This project will define a novel, and essential, pathway for male fertility and may ultimately have relevance to the maintenance of health or improving fertility.
Ultrasound for control of cyanobacteria. Blue-green algae, also known as cyanobacteria, forms in drinking water supplies in Australia and can cause water-quality problems. Current methods to treat blue-green algae involve the use of Copper Sulphate, which is not an environmentally friendly compound. A potential alternative environmentally friendly water-treatment method involves the use of ultrasound to disrupt the cyanobacteria. The aim of this project is to determine the physical properties of ....Ultrasound for control of cyanobacteria. Blue-green algae, also known as cyanobacteria, forms in drinking water supplies in Australia and can cause water-quality problems. Current methods to treat blue-green algae involve the use of Copper Sulphate, which is not an environmentally friendly compound. A potential alternative environmentally friendly water-treatment method involves the use of ultrasound to disrupt the cyanobacteria. The aim of this project is to determine the physical properties of the cyanobacteria when excited with ultrasound for the purpose of finding an efficient method to treat large volumes of water. Read moreRead less
Cell death by self-eating: Autophagy-dependent tissue removal. This project aims to study the mechanisms and regulation of autophagy-dependent cell death. Cell death maintains cell and tissue homeostasis. Although most cell death is mediated by apoptosis, other modes of cell deletion have emerged recently. One form of cell death involves autophagy, the catabolic process of cellular self-digestion through lysosomal enzymes. As autophagy is a default mechanism of cell survival under stress, the id ....Cell death by self-eating: Autophagy-dependent tissue removal. This project aims to study the mechanisms and regulation of autophagy-dependent cell death. Cell death maintains cell and tissue homeostasis. Although most cell death is mediated by apoptosis, other modes of cell deletion have emerged recently. One form of cell death involves autophagy, the catabolic process of cellular self-digestion through lysosomal enzymes. As autophagy is a default mechanism of cell survival under stress, the idea of autophagy-dependent cell death has been controversial. This proposal aims to resolve this question and provide highly topical knowledge of broad biological significance.Read moreRead less
The genetic regulation of organogenesis: endoderm development in the Drosophila embryo. Embryonic development is an important research field in biology, not only for its extraordinary complexity but also because of the insights it provides into molecular processes that underpin a variety of diseases. This project aims to discover genes and molecules that regulate the normal development of one of the most important organs, the gut.
Genetic control of spermatogenesis: defining the role of SOX3 in spermatogonial progenitor cells. The transcription factor (TF) SOX3 is a key regulator of neural stem/progenitor cells. Recently, this project has also shown that SOX3 is active in sperm progenitors (spermatogonia) and is required for spermatogenesis. Using our Sox3 KO mouse model and extensive expertise in spermatogonial cell culture, ChIP-seq technology and bioinformatics, this project will investigate crucial aspects of SOX3 fun ....Genetic control of spermatogenesis: defining the role of SOX3 in spermatogonial progenitor cells. The transcription factor (TF) SOX3 is a key regulator of neural stem/progenitor cells. Recently, this project has also shown that SOX3 is active in sperm progenitors (spermatogonia) and is required for spermatogenesis. Using our Sox3 KO mouse model and extensive expertise in spermatogonial cell culture, ChIP-seq technology and bioinformatics, this project will investigate crucial aspects of SOX3 function in the testes including stem versus progenitor cell activity and genome-wide target gene regulation. These studies will uncover the molecular and cellular mechanism by which SOX3 controls spermatogenesis and provide unique insight into how a single TF controls context-dependent differentiation in sperm versus brain progenitor cells.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE100100149
Funder
Australian Research Council
Funding Amount
$500,000.00
Summary
Spectroscopic imaging for materials, minerals and life sciences. The spectroscopic imaging equipment highlighted in this proposal will produce a number of outcomes of national benefit. First, it will elevate the impact of research in materials, minerals, and life sciences in Australia, all of which are key areas for the national economy and community. Second, the equipment will be integral to the teaching and research nexus and experiential learning facility for a new wave of materials science ....Spectroscopic imaging for materials, minerals and life sciences. The spectroscopic imaging equipment highlighted in this proposal will produce a number of outcomes of national benefit. First, it will elevate the impact of research in materials, minerals, and life sciences in Australia, all of which are key areas for the national economy and community. Second, the equipment will be integral to the teaching and research nexus and experiential learning facility for a new wave of materials science and engineering students to be educated at UniSA in the EIF-funded M2 building at Mawson Lakes. Finally, the anticipated outcomes of the research to be supported are significant and relate clearly to a number of National Research Priorities.Read moreRead less