The Unique Nature Of Gamma Delta T Cell Recognition Resolved Through Interaction With H2-Q10
Funder
National Health and Medical Research Council
Funding Amount
$699,031.00
Summary
The liver is important for both digestion and immunity. Given these opposing functions, the liver must exert control points that prevent the immune system from recognising food products. We have now identified a new molecular target that controls the development of immune cells in the liver.
Unraveling The Link Between HLA B27 And Autoimmunity
Funder
National Health and Medical Research Council
Funding Amount
$746,102.00
Summary
Ankylosing spondylitis and related diseases cause significant morbidity in up to 0.25% of the population. Current treatments have limited efficacy and often debilitating side effects. More targeted peptide antigen based therapies will have fewer side effects and would be of major clinical importance to this group of diseases. This project seeks to identify peptide antigens that could be used in targeted immunotherapy. We also seek to understand how some of the idiosyncratic properties of HLA B27
The liver is an important organ in terms of immune responses. Owing to its exposure to many antigens, it is required to maintain a form of immune tolerance. This ensures that overt immune responses which would damage the liver do not occur. One means by which tolerance occurs is through silencing killer cells through the regulation of molecules of Major Histocompatibility Complex (MHC). This project will explore the role of a soluble form of MHC which is expressed only in the liver.
Assessing Acellular Pertussis Vaccine Effectiveness: Integrating Transmission Models, Genetics And Cohort Data To Inform Policy
Funder
National Health and Medical Research Council
Funding Amount
$429,597.00
Summary
Between 2009-12 a very large epidemic of whooping cough occurred in Australia. More surprisingly during the course of the epidemic the bacteria that cause whooping cough showed genetic changes that seemed to avoid protection provided by the current vaccine against whooping cough in Australia. This grant seeks to use mathematical models of whooping cough transmission to explain how this occurred and to establish whether alternative vaccination strategies might improve the control of this disease.
Reducing Pertussis Burden By Optimising Molecular Epidemiological Surveillance Of Epidemic Bordetella Pertussis In Australia
Funder
National Health and Medical Research Council
Funding Amount
$487,258.00
Summary
Australia has experienced a prolonged epidemic of pertussis from 2008 to 2012 and is currently experiencing another epidemic. In this project, we aim to elucidate the evolutionary dynamics of the epidemics by genome sequencing and develop a practical high throughput culture independent method for epidemiological typing. The outcomes will be highly significant for surveillance of pertussis infections and designing strategies for control and prevention of pertussis.
Role Of SPPL2A On B Cell Survival And Antibody Production In Mice And Humans
Funder
National Health and Medical Research Council
Funding Amount
$592,989.00
Summary
B lymphocytes are a specialised type of blood cells that produce antibodies in response to a pathogen or a vaccine. We have recently discovered that all mature B cells depend for their survival on a previously unknown protein called SPPL2A. This application will investigate the molecular mechanism through which SPPL2A contributes to the survival of B cells. We will also investigate if humans with currently unexplained B cell deficiency have mutations in SPPL2A.
Black Death Genomics And The Evolution Of Pathogen Virulence
Funder
National Health and Medical Research Council
Funding Amount
$525,412.00
Summary
The Black Death was one of the most lethal plagues of antiquity and changed the course of human history. We will reconstruct and analyse the evolution of its causative agent – the bacterium Yersinia pestis – sampled from human skeletal remains dating back to the Black Death and beyond. We will determine the mutations that changed the virulence of plague epidemics through time, enabling a unique insight into the most dramatic example of pathogen emergence that has ever been available for study.
Plasmid Specialisation Modules, Microbial Husbandry And Microbiome Resilience
Funder
National Health and Medical Research Council
Funding Amount
$645,005.00
Summary
The epidemiology of plasmids is chiefly determined by small genetic modules that control their entry to cells, their stability after entry, and their capacity to exclude other related plasmids. Understanding this is important for understanding transmission of antibiotic resistance. It is also essential for our newly proven approach to remove resistance plasmids from bacteria.
Preventing The Evolution Of Transmissible Nitroimidazole Resistance In Mycobacterium Tuberculosis
Funder
National Health and Medical Research Council
Funding Amount
$664,463.00
Summary
Tuberculosis kills more people than any other infectious disease. Unfortunately, the drugs available to us to treat TB are losing their efficacy due to the evolution of drug resistance. A new class of drugs, nitroimidazoles, has been developed, but there is a risk that the bacterium that causes TB will develop resistance to these compounds too. We will identify resistance mutations before they occur in the wild, to help identify them and find new compounds for which resistance cannot develop.
Structural And Functional Characterisation Of The Killer Cell Immunoglobulin-like Receptor (KIR) Family Of Natural Killer Cell Receptors
Funder
National Health and Medical Research Council
Funding Amount
$348,070.00
Summary
Natural Killer (NK) cells are an important component of the immune response to cancer and infection. This project will define the molecular targets that are recognised by NK cells. This knowledge can then be used to guide in the selection of bone marrow donors in the treatment of leukemias as well as understanding how we fight off infections.