Killing Infected Cells As A Mechanism To Eradicate Tuberculosis
Funder
National Health and Medical Research Council
Funding Amount
$1,085,770.00
Summary
Mycobacterium tuberculosis (Mtb), the causative agent of TB, is rapidly becoming resistant to all antibiotics and this disease kills more than one million people each year. This underscores the urgent need to develop new treatments for this disease. We are developing a therapy that kills Mtb infected cells and may help to eradicate infection. This highly novel approach to the treatment of TB would have profound implications for the 2 billion people infected with this pathogen.
Bacterial Inhibition Of Cell Signalling And Apoptosis During Gastrintestinal Infection
Funder
National Health and Medical Research Council
Funding Amount
$542,011.00
Summary
E. coli are a major cause of severe diarrhoeal disease. In order to establish infection, E. coli inhibits a host response where cells with bacteria stuck to them are ‘killed off’ and excreted as waste. This recent discovery illuminated an unknown role for cell death in the immune response during bacterial gastroenteritis. This project will study this phenomenon further to better understand the host immune response to infection and also other gut diseases such as inflammatory bowel disease.
Host innate defence relies on the activation of several signalling pathways that regulate inflammation and cell death. Several important bacterial pathogens of humans inject virulence “effector” proteins into infected cells that interrupt host cell signalling pathways. We recently discovered a family of new effector proteins that directly degrade host proteins and block cell death. Here we will characterise this and other members of the family to understand their role during infection.
Death Receptor Signaling During E. Coli And Salmonella Infection
Funder
National Health and Medical Research Council
Funding Amount
$586,076.00
Summary
Upon encountering invading microorganisms, the body’s immune system usually initiates an inflammatory response to recruit populations of immune cells to the site of infection. To counter this attack, many bacterial pathogens have evolved distinct ways of disarming the inflammatory response. We are investigating the discovery that gastrointestinal bacteria such as Salmonella and pathogenic E. coli specifically interfere with the messages sent by the body’s innate sensors to recruit killer immune ....Upon encountering invading microorganisms, the body’s immune system usually initiates an inflammatory response to recruit populations of immune cells to the site of infection. To counter this attack, many bacterial pathogens have evolved distinct ways of disarming the inflammatory response. We are investigating the discovery that gastrointestinal bacteria such as Salmonella and pathogenic E. coli specifically interfere with the messages sent by the body’s innate sensors to recruit killer immune cells.Read moreRead less
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.
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE100100010
Funder
Australian Research Council
Funding Amount
$720,000.00
Summary
A 5-D Correlative Imaging Platform: Combining the strengths of light and electron microscopy. This will be Australia's first dedicated five-dimensional multiphoton-microscopy platform, allowing observation of dynamic structures across different length and time scales under controlled temperatures, followed by high-resolution electron microscopy studies on the same samples. This platform will provide a unique characterisation tool to Australia's top-flight investigators, and so contribute to the ....A 5-D Correlative Imaging Platform: Combining the strengths of light and electron microscopy. This will be Australia's first dedicated five-dimensional multiphoton-microscopy platform, allowing observation of dynamic structures across different length and time scales under controlled temperatures, followed by high-resolution electron microscopy studies on the same samples. This platform will provide a unique characterisation tool to Australia's top-flight investigators, and so contribute to the nation's research priorities. It will enable: fundamental studies of cancer, neural diseases and immune disorders; the development of frontier technologies, such as smart nanomaterials, biosensors and targeted drug delivery; and applied research to help plants and soils adapt to climate variability, and to increase sustainable use of water.Read moreRead less