An Investigation Into Chromatin Dynamics In Host-pathogen Interactions And Fungal Virulence
Funder
National Health and Medical Research Council
Funding Amount
$700,585.00
Summary
Fungal infections represent a major health burden, with loss of lives that parallels malaria. Only a handful of antifungal therapeutics is available, and mortality remains very high (30% or more). By using molecular biology approaches and animal infection models, this project aims to characterize a new class of promising antifungal drug targets in the major human fungal pathogen Candida albicans. The outcomes will provide the knowledge foundation for future antifungal drug discovery.
An Investigation Into Mitochondrial Dynamics In The Human Pathogen Candida Albicans
Funder
National Health and Medical Research Council
Funding Amount
$581,966.00
Summary
Our goal is to find new therapies to treat infections with Candida albicans, a major human pathogen that causes highly fatal hospital-associated disease. We have identified the mitochondrion, the cellular powerhouse, as a promising target for the development of new anti-candida drugs. We will use innovative imaging and molecular approaches, together with experimental animal infection models to understand how mitochondria could be inhibited to treat life-threatening infections with Candida.
A Multi-protein Vaccine Targeting The Oral Pathogens Associated With Chronic Periodontitis
Funder
National Health and Medical Research Council
Funding Amount
$717,692.00
Summary
Periodontitis is a chronic inflammatory disease associated with specific bacteria leading to the destruction of the toothÍs supporting tissues and ultimately tooth loss and is a major public health problem in all societies. Our research is focused on designing a vaccine that targets the major bacteria associated with periodontitis. We aim to produce a triple antigen vaccine and investigate the applicability of a vaccine administered under the tongue as an alternative to needle injections.
Defining Pathogenic Mechanisms Of Intracellular Bacteria
Funder
National Health and Medical Research Council
Funding Amount
$494,691.00
Summary
This study explores how the bacterium Coxiella burnetii causes the serious infectious disease Q fever. Coxiella is a potential biological weapon because it is very stable in the environment and few organisms are required to cause disease. Coxiella is able to commandeer human cells to replicate in a specialized vacuole but little is understood about how they do this. We will examine the virulence factors of Coxiella and investigate how they allow the bacteria to replicate inside human cells.
Novel Fluorogenic Probes For The Selective Detection Of Pathogenic Bacteria
Funder
National Health and Medical Research Council
Funding Amount
$542,489.00
Summary
Current methods for the detection of multi-resistant organisms either require expensive instrumentation and expert analysts or are simple, but require 24-48 hours for bacterial identification. The ideal surveillance method would be cost effective, rapid, reliable, and simple to perform. This project aims to prepare a range of fluorescent substrates for incorporation into growth media which will then be evaluated for the specific identification of individual multi-resistant organisms, e.g. MRSA.
Interactions Between Integrative Genomic Islands And Plasmids; Role In The Spread And Loss Of Antibiotic Resistance And Pathogenicity Determinants
Funder
National Health and Medical Research Council
Funding Amount
$776,465.00
Summary
Mobile elements that integrate into bacterial chromosomes at a specific site contribute pathogenicity and antibiotic resistance determinants to their bacterial host but only a few are able to move themselves into new hosts. Some plasmids and some elements can help certain others. In this project, genetic approaches will be used to investigate how plasmids and integrative elements help one another move into a new bacterium or compete with one another to stay in the same cell.
Role Of Plasmepsin V And PTEX Complex In Plasmodium Liver Infection
Funder
National Health and Medical Research Council
Funding Amount
$848,408.00
Summary
Plasmepsin V and PTEX are essential proteins for malaria parasites to grow inside red blood cells. These proteins control the export of parasite proteins into red cells, causing disease. Before red blood cells are infected, parasites invade liver cells. Plasmepsin V and PTEX are expressed during liver infection but their function is currently unknown. We hypothesise that they allow parasites to export proteins into liver cells in order to survive and, thus, are antimalarial drug targets.
Helicobacter Pylori Acquisition Of Host Cholesterol: Its Role In Inflammation
Funder
National Health and Medical Research Council
Funding Amount
$417,380.00
Summary
The bacterium Helicobacter pylori is present in the stomach of half the world’s population. It is estimated that 20% of these people will suffer from peptic ulcer disease, whereas as many as 1% will develop stomach cancer later in life. The common factor in all these diseases is the inflammation induced by the bacterium. This project will investigate a new mechanism by which H. pylori causes inflammation and how dietary cholesterol may be involved in this process.
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.
Pacing Across The Membrane: Characterising The PACE Family Of Multidrug Efflux Systems
Funder
National Health and Medical Research Council
Funding Amount
$640,815.00
Summary
The World Health Organisation recognises bacterial antimicrobial resistance as one of the major threats to human health worldwide. Multidrug efflux pumps are an important class of resistance proteins that sit in the bacterial cell membrane and move antimicrobials out of the cell. We recently discovered the first new family of multidrug efflux pumps to be described in 15 years. Our project will define the precise resistance functions of this family and identify ways to block their function.