Characterisation of APC intracellular trafficking pathways. This is a fundamental research project aimed at addressing the cell biology of the APC tumour suppressor protein. APC gene mutations are directly linked to the development of colorectal cancer, a serious healthcare issue in Australia with approximately 12,400 new cases diagnosed each year and around 4,700 deaths. The severity of cases in men and women who develop colorectal cancer makes this a socio-economically serious health issue, an ....Characterisation of APC intracellular trafficking pathways. This is a fundamental research project aimed at addressing the cell biology of the APC tumour suppressor protein. APC gene mutations are directly linked to the development of colorectal cancer, a serious healthcare issue in Australia with approximately 12,400 new cases diagnosed each year and around 4,700 deaths. The severity of cases in men and women who develop colorectal cancer makes this a socio-economically serious health issue, and our project falls within the Research Priority 2: Promoting and Maintaining Good Health. If successful our project will identify localisation patterns and pathways of movement of APC within cells, which could ultimately help in development of treatments. Read moreRead less
Mouse models for the identification of factors involved in muscle adaptation. The ability of muscle to adapt to meet functional demands is essential for mobility in normal daily life, in ageing well, in individuals with muscle diseases and nerve damage and in athletes. The ability of muscle to change its cellular composition is desirable for the livestock industry. Knowledge of how genes in muscle cells are regulated to adapt to demands has significant implications for public health and economic ....Mouse models for the identification of factors involved in muscle adaptation. The ability of muscle to adapt to meet functional demands is essential for mobility in normal daily life, in ageing well, in individuals with muscle diseases and nerve damage and in athletes. The ability of muscle to change its cellular composition is desirable for the livestock industry. Knowledge of how genes in muscle cells are regulated to adapt to demands has significant implications for public health and economic benefits. We have devised model systems that will allow us to identify the regulators of these genes in order to develop therapies to combat these changes in ageing and damaged muscle, to improve the quality of meat and optimise sport performance.Read moreRead less
Do pancreatic stellate cells play a role in pancreatic exocrine secretion? 3 major national benefits: 1)Alignment with research priority goals of preventative health care and ageing well ageing productively. Elucidation of mechanisms of action of CCK and the interaction of PSCs and acinar cells in mediating pancreatic secretion will help refine our approach to the prevention and treatment of disorders related to the above processes viz. maldigestion, malabsorption, obesity and pancreatic cancer. ....Do pancreatic stellate cells play a role in pancreatic exocrine secretion? 3 major national benefits: 1)Alignment with research priority goals of preventative health care and ageing well ageing productively. Elucidation of mechanisms of action of CCK and the interaction of PSCs and acinar cells in mediating pancreatic secretion will help refine our approach to the prevention and treatment of disorders related to the above processes viz. maldigestion, malabsorption, obesity and pancreatic cancer. 2)Enhancement of Australia's reputation in gastrointestinal (GI) research through a unique collaboration between internationally recognised researchers in GI and pancreatic biology. 3)Training opportunities for Australian research students and scientists in physiology, gastroenterology and pancreatology.Read moreRead less
Role of autophagy in degradation of endoplasmic reticulum (ER)-localised protein aggregates. This study will provide a new understanding of protein aggregate accumulation in the endoplasmic reticulum (ER), a phenomenon that occurs in aging cells and protein conformational diseases, and under stress conditions and during secretory protein overexpression. This information will inform strategies to prevent the onset of protein conformational diseases and help identify targets for pharmaceutical int ....Role of autophagy in degradation of endoplasmic reticulum (ER)-localised protein aggregates. This study will provide a new understanding of protein aggregate accumulation in the endoplasmic reticulum (ER), a phenomenon that occurs in aging cells and protein conformational diseases, and under stress conditions and during secretory protein overexpression. This information will inform strategies to prevent the onset of protein conformational diseases and help identify targets for pharmaceutical intervention. In addition, a powerful model system for studies of ER protein aggregation will be established, high-level training in biochemistry and morphometry will be provided, and an international collaboration of the highest calibre will be initiated.Read moreRead less
Surface engineering of biomaterials for optimal bone bonding characteristics. The ideal bone-implant material is hydroxyapatite. Chemically similar to bone mineral, hydroxyapatite is capable of inducing bone ongrowth. An ideal surface coating for metal hip implants, plasma spraying has been the preferred commercial hydroxyapatite coating technique. Until recently, it was always presumed that the bioactivity of hydroxyapatite resulted from its surface chemistry. However, a recent study has shown ....Surface engineering of biomaterials for optimal bone bonding characteristics. The ideal bone-implant material is hydroxyapatite. Chemically similar to bone mineral, hydroxyapatite is capable of inducing bone ongrowth. An ideal surface coating for metal hip implants, plasma spraying has been the preferred commercial hydroxyapatite coating technique. Until recently, it was always presumed that the bioactivity of hydroxyapatite resulted from its surface chemistry. However, a recent study has shown that the bioactivity of HAp coatings strongly correlates with surface roughness on the scale of bone cells. This project will explore cell-attachment behaviour for hydroxyapatite coatings prepared by plasma spraying compared with engineered surface morphology/chemistry by microlithography and vapour coating.Read moreRead less
Functionally graded fibre-polymer composites: a novel material for spinal disk prostheses. Chronic back pain affects a significant proportion of the population and is primarily caused by failure of the spinal disk. A strong social/economic imperative exists to develop engineering solutions to this problem. This project concerns the development of a novel fibre-polymer functionally graded composite material that mimics the structure of the spinal disk. The spinal disk comprises a soft core (nucle ....Functionally graded fibre-polymer composites: a novel material for spinal disk prostheses. Chronic back pain affects a significant proportion of the population and is primarily caused by failure of the spinal disk. A strong social/economic imperative exists to develop engineering solutions to this problem. This project concerns the development of a novel fibre-polymer functionally graded composite material that mimics the structure of the spinal disk. The spinal disk comprises a soft core (nucleus) and a tough fibrous periphery (annulus). The graded composite approach of this proposal represents a significant advance over spinal fusion, and over the alternative spinal disk protheses in clinical use or in the patent literature.Read moreRead less
Development of Advanced Wear Debris Analysis Techniques for Osteoarthritis Study. Wear and tear of joints is the common cause of osteoarthritis, costing $19.25 billion/year. With this cost on the increase, and no cure to date, comes a need to develop effective methods for its diagnosis. This study will provide new knowledge on osteoarthritis progression by allowing strategic use of national health resources. A fuzzy expert system, to be developed utilising the diagnostic/prognostic techniques of ....Development of Advanced Wear Debris Analysis Techniques for Osteoarthritis Study. Wear and tear of joints is the common cause of osteoarthritis, costing $19.25 billion/year. With this cost on the increase, and no cure to date, comes a need to develop effective methods for its diagnosis. This study will provide new knowledge on osteoarthritis progression by allowing strategic use of national health resources. A fuzzy expert system, to be developed utilising the diagnostic/prognostic techniques of this study will significantly reduce cost and time. The project will contribute to the National Strategy by helping older Australians; the major group of osteoarthritis sufferers, to retain their health, independence and productivity.Read moreRead less
Scaffolds for bone tissue regeneration and use in orthopaedic applications. Damaged joints do not repair spontaneously, often leading to arthritis. Bone defects resulting from congenital defects or disease processes are challenging to regenerate and represent a major financial burden to our health system. Bone graft treatments are widely used but have considerable drawbacks. This created a need for scaffolds to provide temporary support for new bone. However they lack the combined physical/biolo ....Scaffolds for bone tissue regeneration and use in orthopaedic applications. Damaged joints do not repair spontaneously, often leading to arthritis. Bone defects resulting from congenital defects or disease processes are challenging to regenerate and represent a major financial burden to our health system. Bone graft treatments are widely used but have considerable drawbacks. This created a need for scaffolds to provide temporary support for new bone. However they lack the combined physical/biological properties necessary for bone repair. We developed new scaffolds with improved mechanical/biological properties to mimic bone which will lead to new treatments for bone damage.Read moreRead less
ARC Centre of Excellence - Vision Science. This Centre will generate important new knowledge of the performance, logic and stability of vision and visual behaviour. This knowledge will help reduce the burden of vision impairment in Australia, increasing productivity, promoting healthy ageing and reducing the community costs of visual impairment (ca. $9.85 billion in 2004). The knowledge produced will also make possible world-class innovations in robotics, leading to novel automated vision system ....ARC Centre of Excellence - Vision Science. This Centre will generate important new knowledge of the performance, logic and stability of vision and visual behaviour. This knowledge will help reduce the burden of vision impairment in Australia, increasing productivity, promoting healthy ageing and reducing the community costs of visual impairment (ca. $9.85 billion in 2004). The knowledge produced will also make possible world-class innovations in robotics, leading to novel automated vision systems with applications in industry and national security. Other knowledge will develop novel diagnostic technologies, for application in health delivery.Read moreRead less
Redefining the metallothionein's role in the injured brain: extracellular metallothioneins play an important role in astrocyte-neuron responses to injury. This project is being performed by an Australian team of researchers who are leaders in this field of research, and has significant national benefits in supporting this team reveal fundamental information on the cellular interactions that occur between astrocytes and neurons within the injured brain. In national terms, it will contribute to th ....Redefining the metallothionein's role in the injured brain: extracellular metallothioneins play an important role in astrocyte-neuron responses to injury. This project is being performed by an Australian team of researchers who are leaders in this field of research, and has significant national benefits in supporting this team reveal fundamental information on the cellular interactions that occur between astrocytes and neurons within the injured brain. In national terms, it will contribute to the concerted effort by Australian scientists to understand how and why neurons die following brain injury or neurodegenerative disease. Furthermore, this research contributes directly to the Designated National Research Priorities by identifying some of the earliest biochemical and cellular processes associated with aging or disease of the brain.Read moreRead less