Perforin Trafficking And Activation In Killer Lymphocytes
Funder
National Health and Medical Research Council
Funding Amount
$292,639.00
Summary
Perforin (PRF) is a protein essential for the function of cytotoxic lymphocytes during an immune response in humans. Humans deficient in PRF are severely immunosuppressed and fall critically ill if they contract a viral infection. The partial loss of PRF function can also predispose an individual to cancer. We aim to investigate the functional and biochemical properties of PRF. The outcomes of this study will determine how PRF influences the immune system and immune homeostasis in humans.
Investigating Polarity Proteins In Thymocytes- A Potential Role In Asymmetric Cell Division?
Funder
National Health and Medical Research Council
Funding Amount
$69,684.00
Summary
To protect us against infection, surveying immune cells will launch an attack against foreign cells by using complex signalling process to communicate with each other. A novel method in which immune cells differentiate to defend the body against infection has been recently discovered this year and this project will involve dissecting how this occurs. It will involve using state-of-the-art laser-based technologies, combined with studying immune events in cells and intact organs.
Molecular And Cellular Mechanisms Of Cytotoxic Lymphocyte Perforin
Funder
National Health and Medical Research Council
Funding Amount
$419,223.00
Summary
Cytotoxic lymphocytes are immune cells, which recognise and kill virus-infected or cancer cells. Perforin is essential for the activity of cytotoxic lymphocytes. The loss of perforin function results in an inherited immune deficiency, or may lead to the development of cancer. Despite a key role of perforin, its mechanism of action and the regulation of activity are unknown. I propose to elucidate these aspects of perforin biology. This is important for understanding immune regulation in humans.
A Dendritic Cell Subset Targeting Approach For Defining Immune Function And Tailoring Immunotherapy
Funder
National Health and Medical Research Council
Funding Amount
$692,753.00
Summary
Dendritic cells are important sentinel cells of the immune system that orchestrate our immune responses against invading pathogens. There are different types of dendritic cells and they perform different jobs. We have a series of antibodies that can recognise markers on the surface of different dendritic cells populations. We can use these antibodies as homing devices to deliver foreign material to individual dendritic cell subpopulations and thereby manipulate the type of immune response genera ....Dendritic cells are important sentinel cells of the immune system that orchestrate our immune responses against invading pathogens. There are different types of dendritic cells and they perform different jobs. We have a series of antibodies that can recognise markers on the surface of different dendritic cells populations. We can use these antibodies as homing devices to deliver foreign material to individual dendritic cell subpopulations and thereby manipulate the type of immune response generated. Effectively, we aim to tailor immune responses to fight a particular bacteria, virus, parasite, or even cancer cells. The current proposal will extend the number of antibodies we test for their ability to generate tailored immunity. We will examine a number of new molecules for their ability to shuttle foreign material to dendritic cells and their ability to stimulate immune responses. Next, we will test these homing devices as vaccines and their ability to prevent or treat cancer. Our aim is to develop a robust, highly efficient, generic, vaccination approach for cancer immunotherapy.Read moreRead less
My research straddles biochemistry, cell biology and immunology. I am interested in the mechanisms of antigen presentation by dendritic cells, and the functions of the cystatin family of protease inhibitors.
Dissecting Mechanisms Of Generalised Immune Activation And Cellular Dysfunction In HIV Infection
Funder
National Health and Medical Research Council
Funding Amount
$422,576.00
Summary
How HIV infection compromises the host immune system is still not well understood. We will study how HIV surface proteins contribute to heightened immune activation during chronic infection. This generalised activation eventually leads to dysfunctional cellular immune responses and loss of partial control of infection. We will additionally investigate the extent and impact of the loss of functional immune responses in chronic HIV infection.