Role Of HtrA And RseP, Stress Response Proteases, In Development And Persistence Of Chlamydia Trachomatis Infections
Funder
National Health and Medical Research Council
Funding Amount
$389,984.00
Summary
This project will research the most commonly reported bacterial sexually transmitted infection Chlamydia trachomatis. Bacterial proteins which could play a role in chronic infections of humans will be investigated. Proteins will be biologically examined to determine their role during disease. This may identify proteins which could be used for diagnostic and therapeutic tools to prevent chronic Chlamydia infection (which can result in infertility and other serious conditions).
Molecular Epidemiology Of Melioidosis In Australia
Funder
National Health and Medical Research Council
Funding Amount
$357,875.00
Summary
Melioidosis is an important infection in northern Australia. It is a common cause of fatal pneumonia and blood infection in the region. Two outbreaks of melioidosis with fatalities occurring in remote Aboriginal communities have been linked to contamination of the community water supply with the melioidosis bacteria, Burkholderia pseudomallei. In addition, a rare form of melioidosis affecting the brain and spinal cord has resulted in a number of deaths in healthy Aboriginal people and also a num ....Melioidosis is an important infection in northern Australia. It is a common cause of fatal pneumonia and blood infection in the region. Two outbreaks of melioidosis with fatalities occurring in remote Aboriginal communities have been linked to contamination of the community water supply with the melioidosis bacteria, Burkholderia pseudomallei. In addition, a rare form of melioidosis affecting the brain and spinal cord has resulted in a number of deaths in healthy Aboriginal people and also a number left living in remote communities with severe disabilities such as complete paralysis of both legs. Melioidosis has also been identified in two outbreaks occurring over many years in separate locations in southern Australia. It is thought that it may have been introduced to these regions by imported animals, eg via cattle drives, and human fatalities have occurred after local flooding in these temperate locations. This project is built on the ongoing melioidosis collaboration between researchers in Western Australia, the Northern Territory and Queensland. The aim is to use new DNA fingerprinting methods developed specifically for the melioidosis bacteria to understand better why melioidosis can be such a severe disease and how it spreads from the environment to humans and animals and also how it has possibly spread within Australia and overseas. Better recognition and treatment of melioidosis has resulted in a halving of the death rate from this disease in northern Australia (mortality decreased from 40%-18%). This study aims to give us a better understanding of how this soil and water bacteria interacts with humans to cause such severe disease and will hopefully result in new primary preventative measures to complement the improved diagnosis and treatment.Read moreRead less
Development and commercialization of novel diagnostic assays for the early detection of acute dengue virus infection. Dengue is an emerging disease of the tropics and is endemic in more than 100 countries with up to 100 million cases annually. Of these, 500,000 result in dengue haemorrhagic fever (DHF), a serious life-threatening complication of dengue virus infection. Dengue activity in northern Australia has increased in recent years with suggestions that it may be coming endemic in this count ....Development and commercialization of novel diagnostic assays for the early detection of acute dengue virus infection. Dengue is an emerging disease of the tropics and is endemic in more than 100 countries with up to 100 million cases annually. Of these, 500,000 result in dengue haemorrhagic fever (DHF), a serious life-threatening complication of dengue virus infection. Dengue activity in northern Australia has increased in recent years with suggestions that it may be coming endemic in this country. Early diagnosis, using NS1 based assays should facilitate containment of such outbreaks through earlier identification, treatment, isolation and strategic mosquito control.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0453920
Funder
Australian Research Council
Funding Amount
$108,680.00
Summary
Molecular diagnostics based on real-time polymerase chain reactions for emerging tropical infectious diseases aimed at protecting Australia from invasive diseases. The project aims to use the technique of real-time polymerase chain reaction to rapidly detect and quantify the organisms associated with emerging and re-emerging infectious diseases of man and animals. It will also be used to determine related gene expression.
The equipment will be used to support a wide range of projects that req ....Molecular diagnostics based on real-time polymerase chain reactions for emerging tropical infectious diseases aimed at protecting Australia from invasive diseases. The project aims to use the technique of real-time polymerase chain reaction to rapidly detect and quantify the organisms associated with emerging and re-emerging infectious diseases of man and animals. It will also be used to determine related gene expression.
The equipment will be used to support a wide range of projects that require the detection of specific RNA or DNA and it will allow the rapid, cost effective and efficient processing of either RNA or DNA from large numbers of samples. Minor variations in organisms will be detected using this equipment.
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Development of an effective vaccine for chlamydial infection: optimisation of a non-toxic cholera toxin-based adjuvant to generate a protective mucosal response. Chlamydial genital infections are the most common sexually transmitted infection in Australia and the world and impose a major health burden on the community. Chlamydial infections are also associated with cardiovascular disease, Australia's biggest killer and asthma, another condition that has increased significantly in prevalence in t ....Development of an effective vaccine for chlamydial infection: optimisation of a non-toxic cholera toxin-based adjuvant to generate a protective mucosal response. Chlamydial genital infections are the most common sexually transmitted infection in Australia and the world and impose a major health burden on the community. Chlamydial infections are also associated with cardiovascular disease, Australia's biggest killer and asthma, another condition that has increased significantly in prevalence in the past 10 years. This project will evaluate the effectiveness of a new adjuvant as a first step towards the development of a vaccine to target these important infections.Read moreRead less
Discovery Indigenous Researchers Development - Grant ID: DI0989521
Funder
Australian Research Council
Funding Amount
$150,000.00
Summary
A Qualitative Study of Barriers to Effective Infectious and Parasitic Disease Interventions in Aboriginal Communities. This project is significant and innovative as it will enhance current understandings of the experience Indigenous communities have with infectious diseases. To date there have been no significant qualitative studies that examine the perceptions Indigenous communities have about infectious disease treatment interventions that draw on their current knowledge, experiences and on he ....A Qualitative Study of Barriers to Effective Infectious and Parasitic Disease Interventions in Aboriginal Communities. This project is significant and innovative as it will enhance current understandings of the experience Indigenous communities have with infectious diseases. To date there have been no significant qualitative studies that examine the perceptions Indigenous communities have about infectious disease treatment interventions that draw on their current knowledge, experiences and on health, functionality and well-being. This study will develop a model that Indigenous communities, clinicians, policy makers and researchers can use to guide the implementation of sustainable infectious disease interventions. The outcomes of this project will help guide, inform and improve future infectious disease intervention strategies and programs.Read moreRead less
PrtFII, A Streptococcus Pyogenes Fibronectin Binding Protein, And Invasive Diseases.
Funder
National Health and Medical Research Council
Funding Amount
$296,540.00
Summary
Our recent work revealed that, in the Aboriginal population, young age is a risk factor for severe invasive diseases caused by group A streptococcus. For group A streptococcus infection to occur, bacterial attachment is the first step. The bacterium attaches to host cells through interactions involving host fibronectin and the pathogen's fibronectin-binding proteins. We have found that streptococcal strains from severe disease cases are more likely to have the gene for PrtFII, a fibronectin bind ....Our recent work revealed that, in the Aboriginal population, young age is a risk factor for severe invasive diseases caused by group A streptococcus. For group A streptococcus infection to occur, bacterial attachment is the first step. The bacterium attaches to host cells through interactions involving host fibronectin and the pathogen's fibronectin-binding proteins. We have found that streptococcal strains from severe disease cases are more likely to have the gene for PrtFII, a fibronectin binding protein, than those from uncomplicated skin sores. In this application we propose to extend this observation and compare biochemical properties of PrtFII from strains belonging to the above two sets of collections. We hypothesise that PrtFII from invasive strains bind to fibronectin more tightly than the proteins from strains that cause uncomplicated infection. We also will test whether sera from invasive disease cases have lower titre of antibodies to the conserved region of PrtFII than sera from uncomplicated cases. A streptococcal vaccine by necessity has to be a multi-component vaccine to cover a wide spectrum of diseases and epidemiological differences. The study proposed here may provide a basis to argue whether or not to include PrtFII in such a multi-component vaccine.Read moreRead less
New drugs against parasitic nematodes of livestock animals. New drugs against parasitic nematodes of livestock animals. This project aims to develop an innovative technology platform to deliver novel anti-infectives as biotechnological outcomes, using postgenomics, computing and chemistry. Advanced molecular, computer and chemistry technologies provide unprecedented opportunities to design radically new interventions against socioeconomically important infectious diseases affecting billions of a ....New drugs against parasitic nematodes of livestock animals. New drugs against parasitic nematodes of livestock animals. This project aims to develop an innovative technology platform to deliver novel anti-infectives as biotechnological outcomes, using postgenomics, computing and chemistry. Advanced molecular, computer and chemistry technologies provide unprecedented opportunities to design radically new interventions against socioeconomically important infectious diseases affecting billions of animals worldwide. Anticipated outcomes are the design of radically new chemotherapies to control parasitic diseases, the translation of fundamental research into biotechnological outcomes, international visibility of Australian science, and a solid skills- and knowledge-base in veterinary drug development.Read moreRead less
Mathematical modelling can provide vital information on the effectiveness and practical implementation of microbicides and vaccines against HIV. This project will produce mathematical models of the earliest stages of HIV infection suitable for investigation of the implementation of vaccines and microbicides. It will provide a framework to investigate why these interventions have performed poorly to date, and how these may be better implemented.
Identification of new antibacterial agents that inhibit type III secretion. The development of new antibacterial drugs is an unmet global health priority. This project will investigate several plant-derived compounds that have been found to display promising antibacterial activity. This project has the potential to identify compounds that may result in a new antibiotic therapy.