Transport and innate immune properties of DNA in bacterial nano-sized vesicles. All types of living organisms release nano-sized membrane vesicles or “blebs” which they use for intercellular communication and transport of molecules. This project will determine how bacteria package DNA within these vesicles, how this DNA is transported into host cells and how it triggers immune responses in these cells.
Integrated System Wide Characterization Of Microbiota And Host Factors Influencing Intestinal Colonization Resistance To The Healthcare Pathogen Clostridium Difficile
Funder
National Health and Medical Research Council
Funding Amount
$359,999.00
Summary
Naturally occurring bacteria play an important role in determining patient disease susceptibility, disease progression and ultimately, disease outcome. Over 1000 species of bacteria, contributing 10 times as many cells as found within a single individual. This project seeks to understand these communities, how they confer resistance to infection and how they can be manipulated, both naturally and through controlled introduction of bacteria to prevent disease or improve disease outcome.
Discovery Early Career Researcher Award - Grant ID: DE120101340
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
Subversion of innate immune responses by pathogenic Escherichia coli. This project will determine how bacteria that cause diarrhoeal diseases prevent the immune system from signalling efficiently. It will provide important information not only about how the bacteria establish disease, but also provide insight into the host response in the early stages of infection.
Mechanisms connecting diet, metabolism, gut microbiota and immunity. This project will identify the role of short chain fatty acids and the G-protein coupled receptor (GPR43) in regulating immune responses. This could explain how diet affects immune responses and also how certain bacteria in the gut provide benefits for immune defence.