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Systems-level Characterisation And Therapeutic Targeting Of Small RNAs In Acinetobacter Baumannii Disease
Funder
National Health and Medical Research Council
Funding Amount
$581,990.00
Summary
This proposal aims to understand how a superbug that causes severe infections in hospitalised patients worldwide and is known to be resistant to almost all available antibiotics, causes disease. We then plan on using this information to guide the development of a new type of therapy to treat this severe infection.
Manipulation Of Clathrin-mediated Trafficking By Coxiella
Funder
National Health and Medical Research Council
Funding Amount
$667,857.00
Summary
This research will uncover how Coxiella causes the serious infectious disease Q fever by commandeering human cells and replicating to high numbers within a specialised vacuole. We will investigate virulence factors of Coxiella, learning how and why they target an essential human vesicular trafficking process. Our innovative approach and unique expertise will elucidate interaction between this pathogen and the human cell, providing fundamental knowledge towards public health outcomes.
Role Of Autotransporter Proteins In Uropathogenic E. Coli Infections
Funder
National Health and Medical Research Council
Funding Amount
$611,149.00
Summary
Urinary tract infections (UTI) are among the most common infectious diseases of humans. Uropathogenic E. coli (UPEC), the primary cause of UTI, utilize a range of adherence mechanisms to colonize the urinary tract. In this project we will characterise the function and mode of secretion for one important class of UPEC adherence factors – autotransporter proteins. This work may inform new approaches to prevent UTI, an urgent need given the rapid increase in resistance to antibiotics among UPEC.
The Impact Of Clostridium Difficile Infection And The Host Immune Response On Colonic Homeostasis And Regeneration.
Funder
National Health and Medical Research Council
Funding Amount
$932,212.00
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 have spread through our hospitals and are also found in the community. This project will increase our understanding of how these strains cause severe gut disease, which is critical for the development of improved strategies for preventing and treating these infections and reducing antibiotic use.
Expression And Secretion Of Large Clostridial Toxins From The Pathogenic Clostridia.
Funder
National Health and Medical Research Council
Funding Amount
$332,258.00
Summary
The large clostridial toxins are an important family of bacterial virulence factors that includes toxins from many disease-causing clostridial species. Despite their impact on public health, pathogenesis of disease caused by these bacteria is poorly understood. We will analyse how these bacteria regulate the production and secretion of the large toxins, which will give us a better understanding of the mechanisms of disease causation as well as identifying novel common therapeutic targets.
The Role Of Clostridium Difficile Spore Surface Structures In Initiating Gastrointestinal Infection And Disease.
Funder
National Health and Medical Research Council
Funding Amount
$467,556.00
Summary
Hospital-acquired infections with the bacterium Clostridium difficile are a major global public health concern with more virulent isolates emerging overseas since 2000. These strains were detected in Australia in 2010 and are now spreading throughout our hospitals. This project will increase our understanding of how these strains are transmitted to susceptible hosts and why they are so harmful, which is critical for the development of better strategies for preventing and treating these infection ....Hospital-acquired infections with the bacterium Clostridium difficile are a major global public health concern with more virulent isolates emerging overseas since 2000. These strains were detected in Australia in 2010 and are now spreading throughout our hospitals. This project will increase our understanding of how these strains are transmitted to susceptible hosts and why they are so harmful, which is critical for the development of better strategies for preventing and treating these infections.Read moreRead less
Evolution And Pathogenicity Of NDM-1 Positive Escherichia Coli
Funder
National Health and Medical Research Council
Funding Amount
$643,275.00
Summary
Antibiotic resistance (AR), as highlighted by the WHO, is the most pressing medical need of the 21C – some infections are now untreatable. Our research will focus on the new "superbug" NDM-1 positive E. coli. We will correlate AR and pathogenicity and explore the evolution of these "superbugs" using state-of-the-art sequencing. This research will benefit Australian medicine by predicting timelines of AR epidemics and by conducting the first analyses on the virulence potential of these strains.
Integrated Bacterial Genomics And Virulence Analysis Of Uropathogenic Streptococcus Agalactiae
Funder
National Health and Medical Research Council
Funding Amount
$747,457.00
Summary
Urinary tract infections (UTI), which start as a bladder infection and often evolve to encompass the kidneys, are among the most common infectious diseases in humans. Streptococcus agalactiae is an important cause of gram-positive bacterial UTI. We will study the genomes and functions of specific genes in reference strains of this bacterium isolated from patients with different forms of infection to elucidate how bacterial genes and virulence factors contribute to these types of infections.
The Role Of Clostridium Difficile Virulence Factors In Mediating The Host-pathogen Interactions That Lead To Gastrointestinal Disease
Funder
National Health and Medical Research Council
Funding Amount
$444,351.00
Summary
Hospital-acquired infections with the bacterium Clostridium difficile are a major global public health concern with more virulent isolates emerging overseas since 2000. These strains were detected in Australia in 2010 and are now spreading throughout our hospitals. This project will increase our understanding of how these strains cause disease and why they are more harmful, which is critical for the development of improved strategies for preventing and treating these infections.
ROLE OF RIP KINASES & IAPs IN MUCOSAL IMMUNE DEFENCE
Funder
National Health and Medical Research Council
Funding Amount
$631,168.00
Summary
Pathogenic bacteria are master manipulators of the inflammatory signalling pathways designed to thwart them. Understanding how they do this will allow us to develop drugs that limit their ability to infect. We have shown that pathogenic bacteria inject a protein called EspL into human cells to promote the destruction of a family of human proteins, called RIP Kinases (RIPK), that co-ordinate the inflammatory response and aim now to discover how EspL causes RIPK degradation and thereby promotes in ....Pathogenic bacteria are master manipulators of the inflammatory signalling pathways designed to thwart them. Understanding how they do this will allow us to develop drugs that limit their ability to infect. We have shown that pathogenic bacteria inject a protein called EspL into human cells to promote the destruction of a family of human proteins, called RIP Kinases (RIPK), that co-ordinate the inflammatory response and aim now to discover how EspL causes RIPK degradation and thereby promotes infection.Read moreRead less