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Cell Surface Protein Antigens Of Porphyromonas Gingivalis
Funder
National Health and Medical Research Council
Funding Amount
$339,634.00
Summary
Periodontitis is a bacterial-associated disease of the supporting structures of the teeth and can result in tooth loss. The disease is classified as a major public health problem with an enormous economic burden. A bacterium Porphyromonas gingivalis has now been identified as a major causative agent of periodontitis in adults. We have developed methods to rapidly identify all the surface protein antigens of P. gingivalis using mass spectrometry and then using recombinant DNA technology to expres ....Periodontitis is a bacterial-associated disease of the supporting structures of the teeth and can result in tooth loss. The disease is classified as a major public health problem with an enormous economic burden. A bacterium Porphyromonas gingivalis has now been identified as a major causative agent of periodontitis in adults. We have developed methods to rapidly identify all the surface protein antigens of P. gingivalis using mass spectrometry and then using recombinant DNA technology to express these recombinant antigens for testing in animal models of disease. The aim of this project is: (i) to rapidly identify cell surface protein antigens of P. gingivalis using novel techniques. (ii) prepare these antigens using recombinant DNA technology. (iii) use patient and healthy subject sera as well as animal antisera to screen the recombinant antigens for suitable candidates for an immunodiagnostic product and-or vaccine. (iv) test the recombinant antigens in animal models of disease in an approach to identify a candidate antigen for a vaccine. The expected outcomes of this research are that (i) we will develop techniques that can be used to characterise the cell surface antigens of any pathogenic bacterium. (ii) we will determine the organisation and the structure of the cell surface proteins of P. gingivalis. (iii) we will identify an abundant, unique and immunogenic protein of the P. gingivalis surface that will be a suitable candidate antigen for the development of a sensitive and specific immunodiagnostic. (iv) we will identify a cell surface antigen that when used as a vaccine in animals prevents disease caused by P. gingivalis.Read moreRead less
Identification Of Biomarkers For Alzheimers Disease
Funder
National Health and Medical Research Council
Funding Amount
$607,489.00
Summary
Alzheimer's disease is the most common age-related neurodegenerative disease, and the most common cause of dementia. It is estimated that 212,000 Australians suffer from dementia and this will rise to approximately 730,000 by 2050. Currently there are no definitive diagnostic methods for AD. The research described in this application seeks to identify and validate a range of biomarkers identified in the blood of patients that would be suitable to use for diagnostic purposes.
Metabolomic Analysis Of Leishmania Parasites; Identifying Metabolic Pathways Required For Pathogenesis
Funder
National Health and Medical Research Council
Funding Amount
$605,963.00
Summary
Leishmania are single-celled parasites that target a major class of immune cell, affecting millions and killing thousands of people worldwide. We have developed new approaches for investigating how these parasites survive in the immune cells, and why different species of Leishmania cause markedly different pathologies. This information will be used to identify and validate new drug targets in these parasites.
Development Of High-throughput Screening Assays For Detecting Early Gastric Cancer: Translating Proteomics Research Into Clinical Outcomes Using Emerging Mass Spectrometry And Photonics Technologies
Funder
National Health and Medical Research Council
Funding Amount
$655,438.00
Summary
Gastric cancer (GC) is the second leading cause of cancer death worldwide, claiming the lives of >11,000 Australians from 1996-2006. Individuals diagnosed with GC have an expected 5-year survival rate of 10-30%. This could be improved if cases were identified in the early stages of the disease where treatments are more effective. Researchers from Adelaide and Melbourne are developing a diagnostic assay for early-stage GC based on a novel detection system that requires only a drop of blood.
Biochemistry And Functional Significance Of Glycosylation Of Apolipoprotein E
Funder
National Health and Medical Research Council
Funding Amount
$485,000.00
Summary
Apolipoprotein E (apoE) is an important molecule which affects our risk of atherosclerosis- coronary disease and of Alzheimer's disease. We know that apoE's functions are very much affected by its structure. One aspect of tis structure which has been neglected is the attachment of sugar molecules . These are very likely to regulate how apoE interacts with other molecules, with cells, and is metabolised in the body and will be investigated in this project.
Remodelling Of Bacterial Outer Membranes: Implications For Vaccine Development.
Funder
National Health and Medical Research Council
Funding Amount
$558,189.00
Summary
We have identified proteins located in bacteria that are responsible for growth and the transport of essential nutrients. We will use a combination of bacterial genetics, protein biochemistry and immunological techniques to fully characterize these proteins. This strategic knowledge has direct implications for vaccine development and National security, since similar species of bacteria were amongst the first biological weapons.