Regulation Of Secretion Of The Fungal Virulence Determinant, Phospholipase B
Funder
National Health and Medical Research Council
Funding Amount
$487,500.00
Summary
Serious systemic infections due to fungi have increased dramatically in the past few years, especially in people with poorly functioning immune systems. Treatment of these conditions is problematic because the few drugs which are available are not highly effective, and-or cause significant side-effects. Little is understood of how fungi cause disease, and this problem must be addressed if these infections are to be contained. We have discovered that the enzyme, phospholipase B (PLB), is secreted ....Serious systemic infections due to fungi have increased dramatically in the past few years, especially in people with poorly functioning immune systems. Treatment of these conditions is problematic because the few drugs which are available are not highly effective, and-or cause significant side-effects. Little is understood of how fungi cause disease, and this problem must be addressed if these infections are to be contained. We have discovered that the enzyme, phospholipase B (PLB), is secreted by the disease-causing fungus, Cryptococcus neoformans, and that it is important in enabling the fungus to invade the host's cells and spread around the body from the lungs to the brain, where it can cause meningoencephalitis. PLB is also produced by other disease-causing fungi. The mechanism of PLB secretion is completely unknown. In this project we aim to determine the pathways involved in PLB secretion with the intention of exploiting steps unique to pathogenic fungi, for the future design of new anti-fungal drugs.Read moreRead less
Anti-sporulation Strategies For Clostridium Difficile Infections
Funder
National Health and Medical Research Council
Funding Amount
$651,559.00
Summary
Hospital-acquired infections with the bacterium Clostridium difficile are a major global public health concern with highly virulent isolates emerging overseas in 2002 and in Australia in 2010. These strains have spread through our hospitals and are also found in the community. This project will increase our understanding of how these strains spread and will provide knowledge that is critical for developing improved strategies for preventing these infections.
Mechanism Of Anoxic Iron Acquisition In Pathogenic Bacteria
Funder
National Health and Medical Research Council
Funding Amount
$536,280.00
Summary
All organisms require iron for their survival, including all bacterial species. Bacterial pathogens growing in anaerobic environments, such as in our gut, gum, or tissue, sequester iron through the divalent iron transporter FeoB. We aim to divulge the mechanism of iron transport through FeoB by structural and functional studies, and thus provide a scaffold for a non-conventional antimicrobial target.
Broadening Choice and Increasing Diversity in Public Schools. Currently, most families are limited to the public school in their catchment area, meaning the area in which they can afford to live. This leads to socio-economically and ethnically homogenous schools and entrenches disadvantage, as well as denying students the crucial life lessons that flow from being part of a diverse student body. This project aims to investigate a model for allocating public school places that integrates catchment ....Broadening Choice and Increasing Diversity in Public Schools. Currently, most families are limited to the public school in their catchment area, meaning the area in which they can afford to live. This leads to socio-economically and ethnically homogenous schools and entrenches disadvantage, as well as denying students the crucial life lessons that flow from being part of a diverse student body. This project aims to investigate a model for allocating public school places that integrates catchment areas. The expected outcome would be a system that gives families a wider choice, enabling them to enrol in out-of-area schools, while ensuring that allocations remain fair, equitable and balanced, and also delivering benefits such as achieving a desired level of diversity in student populations within schoolsRead moreRead less
Improving Pain And Movement Outcomes In Symptomatic Knee Osteoarthritis
Funder
National Health and Medical Research Council
Funding Amount
$431,000.00
Summary
People fear getting painful knee osteoarthritis (OA) more than any other disease – it is seen as progressive and incurable. It often stops people from moving and staying healthy, resulting in an enormous burden on sufferers and the health care system. This program of research aims to understand what brain & nervous system processes might underlie these pain and movement problems and whether new brain-targeting treatment helps. This will allow us to better match treatment to what patients need.
Testing strategy-proofness in matching markets: an experimental study. This project seeks to test and improve matching algorithms by investigating the effect of advice on strategy-proofness. Matching algorithms are used to solve allocation problems in designed markets (eg school or house allocation problems). Many of the algorithms employed are strategy-proof: participants never gain from strategising, that is, from lying about their preferences. Strategy-proofness had been seemingly validated b ....Testing strategy-proofness in matching markets: an experimental study. This project seeks to test and improve matching algorithms by investigating the effect of advice on strategy-proofness. Matching algorithms are used to solve allocation problems in designed markets (eg school or house allocation problems). Many of the algorithms employed are strategy-proof: participants never gain from strategising, that is, from lying about their preferences. Strategy-proofness had been seemingly validated by experimental research, but new evidence suggests that participants could be prone to follow wrong advice and therefore lie. In order to improve the performance of designed markets, the project proposes to further test strategy-proofness by investigating how advice can affect truth-telling in strategy-proof algorithms and whether learning can counteract or complement the effect of advice.Read moreRead less
Investigating The Cellular Response To Iron-Depletion: The Trilogy Of ASK1, Thioredoxin And Ribonucleotide Reductase
Funder
National Health and Medical Research Council
Funding Amount
$552,572.00
Summary
Iron is crucial for many essential biological processes. Recently, we demonstrated that iron-depletion can affects important signalling pathways (e.g., JNK and p38) that play important roles in growth arrest and apoptosis. This study is designed to investigate the cellular and molecular effects of iron depletion which currently remains unclear. The research is crucial for understanding: (1) the effects of iron deficiency and (2) for understanding the effects of iron chelators that are used for t ....Iron is crucial for many essential biological processes. Recently, we demonstrated that iron-depletion can affects important signalling pathways (e.g., JNK and p38) that play important roles in growth arrest and apoptosis. This study is designed to investigate the cellular and molecular effects of iron depletion which currently remains unclear. The research is crucial for understanding: (1) the effects of iron deficiency and (2) for understanding the effects of iron chelators that are used for treating various diseases.Read moreRead less
Neuropathic pain is particularly difficult to treat and existing medications have considerable side effects. This project will develop a new set of glycine transport inhibitors that have the potential to provide pain relief without side effects.
Cross-linking in free-radical polymerizations: kinetics and mechanical properties. Cross-linked polymer chains are joined together in a ?ladder? topology. This often occurs either deliberately or accidentally in industrial systems, and affects polymer properties. However, cross-linking mechanisms are poorly understood, and there are no general means of quantitatively controlling effects on mechanical properties. As a by-product from a previous IREX grant, a means was found to grow polymers with ....Cross-linking in free-radical polymerizations: kinetics and mechanical properties. Cross-linked polymer chains are joined together in a ?ladder? topology. This often occurs either deliberately or accidentally in industrial systems, and affects polymer properties. However, cross-linking mechanisms are poorly understood, and there are no general means of quantitatively controlling effects on mechanical properties. As a by-product from a previous IREX grant, a means was found to grow polymers with controlled cross-linking. This proposal exploits this method to synthesize polymers with different amounts of cross-linking, and to examine their formation mechanisms and mechanical properties. This has the potential of improving means of making rubber-based materials by polymer modification.Read moreRead less