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Enhancing Host Defence Mechanisms In Severe Bacterial Infections
Funder
National Health and Medical Research Council
Funding Amount
$830,447.00
Summary
New options to treat bacterial infections are needed because of the rapid increase in antibiotic resistance. One very attractive strategy is to boost the body’s own defence mechanisms against bacteria. This project defines novel molecular mechanisms that can be manipulated to better control a bacterial infection. Novel drugs targeting these molecular pathways are already being developed, albeit for cancer. This project will help assess if these drugs may be useful to treat infections.
Dissecting Immune Responses To Salmonella Infection
Funder
National Health and Medical Research Council
Funding Amount
$415,797.00
Summary
Successful treatment of Salmonella infections requires a detailed understanding how Salmonella growth is controlled. This project will examine the role of white blood cells, will reveal how they contribute to the control of Salmonella infections and will test novel treatment options. The outcome of this project will significantly advance our understanding of immune responses against Salmonella.
A New Class Of Inhibitors For The Treatment Of Tuberculosis
Funder
National Health and Medical Research Council
Funding Amount
$720,691.00
Summary
Tuberculosis (TB) remains a major cause of mortality and morbidity worldwide, with 1.3 million deaths annually. Some strains of the TB bacterium are resistant to all available drugs. We have identified novel chemical structures that display potent and specific activity against pathogenic mycobacteria. In this proposal we will develop optimised derivatives with more potent activity against mycobacteria, assess their stability and toxicity and determine their mode of action.
An Ace Up Their Sleeve: Characterisation Of A Novel Family Of Drug Efflux Systems Represented By The Acinetobacter AceI Exporter
Funder
National Health and Medical Research Council
Funding Amount
$400,286.00
Summary
Chlorhexidine is widely used as an antiseptic in products such as skin washes, soaps, mouthwashes, disinfectants and preservatives. We have recently discovered a novel bacterial protein which pumps chlorhexidine out of bacterial cells to make them resistant to this antiseptic agent. This proposal aims to understand this resistance mechanism and to find inhibitors which could be applied in clinical settings to augment the activity of chlorhexidine.
Reversing Antibiotic Resistance With Efflux Pump Inhibitors
Funder
National Health and Medical Research Council
Funding Amount
$494,174.00
Summary
Antibiotic resistance in dangerous pathogens is one of the greatest threats to human health of the 21st century. The main cause of multidrug resistance is the presence of drug efflux pumps, which remove antibiotics from the bacterial cell thereby lowering the antibiotic concentration inside the cells to sub-toxic levels. We will use our expertise on these efflux pumps and on how to inhibit them to develop compounds that could reverse resistance and restore the activity of antibiotics.
Host Cell Death Signaling And Susceptibility To Bacterial Gut Infection
Funder
National Health and Medical Research Council
Funding Amount
$682,321.00
Summary
Bacterial infections are a major cause of infectious disease worldwide. Here we aim to characterise immune responses that help fight infection by E. coli and Salmonella. These bacteria have evolved ways to shut down many of our immune responses during infection, allowing them to survive and cause disease. This work will help understand the complex relationship between gut bacteria and our immune system and provide solutions for controlling infection and treating immune disorders of the gut.
Design, Development And Analysis Of New Tuberculosis Drugs
Funder
National Health and Medical Research Council
Funding Amount
$736,628.00
Summary
Serious issues of drug resistance have emerged in tuberculosis prevention and are placing enormous pressure on global health systems. We have identified an enzyme of M. tuberculosis that is essential for its survival. This project will develop potent inhibitory compounds for this enzyme. Further, we will identify new drug targets through a screen to specifically identify the genes of the organism essential for its survival in the body. This information will be used to develop new TB drugs.
Exploitation Of Bacterial Transcription Initiation As A Target For New Antimicrobials
Funder
National Health and Medical Research Council
Funding Amount
$540,356.00
Summary
Antibiotic resistant infections from 'superbugs' are a major health problem. We will exploit information we have gathered on the machinery that copies genetic information into a message to discover chemical compounds that can be used for the development of new antibiotics with a novel mechanism of action.
Determining The Bacterial Contributions To Tuberculosis And Identification Of Drug Targets
Funder
National Health and Medical Research Council
Funding Amount
$443,946.00
Summary
Serious issues of drug resistance have emerged in tuberculosis prevention and are placing enormous pressure on global health systems. We have identified an enzyme of M. tuberculosis that is essential for its survival. This project will develop potent inhibitory compounds for this enzyme. Further, we will identify new drug targets through a screen to specifically identify the genes of the organism essential for its survival in the body. This information will be used to develop new TB drugs.
Once treatable infections are becoming deadly because bacteria are developing broad antibiotic resistance. New medicines are urgently needed. Microbes themselves are the richest known source of new antibiotics but finding the 'good bugs' is like finding a needle in a microbial haystack. This project will use state-of-the art science to screen a previously overlooked source of rich microbial biodiversity and find new antibiotics.