Antigen Recognition By CD1a-restricted T Cells In The Human Immune System
Funder
National Health and Medical Research Council
Funding Amount
$615,520.00
Summary
Human immunity requires protective T cells that target foreign molecules for removal. Even though substantial populations of T cells exist that recognise lipid molecules, little is known about their basic biology. We will identify and characterise lipid reactive human T cells and examine their response to foreign or self-lipids expressed by infectious organisms and host cells. This work will have important implications in understanding lipid reactive T cells in health and disease.
Lipid Antigen Recognition By Diverse CD1-restricted T Cells
Funder
National Health and Medical Research Council
Funding Amount
$312,625.00
Summary
Natural Killer T (NKT) cells are a specialized T cell lineage that form a key part of the adaptive immune response required for protection against infection, allergy, cancer and autoimmune diseases. Different types of NKT cells exist, expressing distinct T cell receptors that recognize a large array of lipid antigens presented during disease conditions. Understanding the mechanisms involved in lipid recognition is crucial in deciphering how NKT cells can be manipulated for desired immune respons ....Natural Killer T (NKT) cells are a specialized T cell lineage that form a key part of the adaptive immune response required for protection against infection, allergy, cancer and autoimmune diseases. Different types of NKT cells exist, expressing distinct T cell receptors that recognize a large array of lipid antigens presented during disease conditions. Understanding the mechanisms involved in lipid recognition is crucial in deciphering how NKT cells can be manipulated for desired immune responses.Read moreRead less
The Adaptive Immune Response To Epstein-Barr Virus.
Funder
National Health and Medical Research Council
Funding Amount
$92,314.00
Summary
Epstein-Barr virus (EBV), the causative agent of glandular fever, is carried by a large proportion of adults worldwide. EBV is known to cause many cancers including Burkitt's lymphoma and has been linked to autoimmune diseases such as multiple sclerosis. The aim of this project is to find new fragments of EBV that the body's immune system can recognise and use to protect itself against the virus. Once found these pieces will form parts of the puzzle that will one day combine as a vaccine against ....Epstein-Barr virus (EBV), the causative agent of glandular fever, is carried by a large proportion of adults worldwide. EBV is known to cause many cancers including Burkitt's lymphoma and has been linked to autoimmune diseases such as multiple sclerosis. The aim of this project is to find new fragments of EBV that the body's immune system can recognise and use to protect itself against the virus. Once found these pieces will form parts of the puzzle that will one day combine as a vaccine against EBV.Read moreRead less
Regulation Of The Anti-tumour Immune Response By The Chemokine Decoy Receptor CCX-CKR
Funder
National Health and Medical Research Council
Funding Amount
$562,742.00
Summary
Melanoma is a significant cause of cancer-related deaths in Australians. Death is usually due to metastasis of the cancer to the lungs and other organs. In this project, we will take advantage of unique mouse models to determine whether inhibition of the function of a novel protein can prevent melanoma growth and metastasis to different organs. The results of this study may lead to new therapeutic approaches to control malignant melanoma and other metastatic cancers.
Antigen Receptor Sharing By Lymphocytes During An Immune Response
Funder
National Health and Medical Research Council
Funding Amount
$286,328.00
Summary
A successful immune response relies on the ability of immune cells to quickly mount a specific offensive against invading foreign pathogens like bacteria or viruses. The specificity of this offensive is governed by receptors that can recognise pathogens. To survive an infection the immune system must rapidly expand the number of immune cells that have receptors that recognise, and can therefore specifically combat, the infection. The underlying theory of immunology, the clonal selection theory, ....A successful immune response relies on the ability of immune cells to quickly mount a specific offensive against invading foreign pathogens like bacteria or viruses. The specificity of this offensive is governed by receptors that can recognise pathogens. To survive an infection the immune system must rapidly expand the number of immune cells that have receptors that recognise, and can therefore specifically combat, the infection. The underlying theory of immunology, the clonal selection theory, states that this expansion is mediated by the proliferation of immune cells selected on the basis of expressing a pathogen specific receptor. We hypothesise that in addition to this proliferation the immune system may also expand the number of immune cells expressing pathogen-specific receptors by transferring these receptors between cells by a means of cell-membrane sharing. Indeed, we have evidence that this does occur both in the test tube and in animals and can function to amplify the number of immune cells that can specifically recognise a pathogen and thereby help with immune response development. This grant aims to further advance our understanding of this novel phenomenon.Read moreRead less
The Structure And Composition Of The T-cell Receptor-CD3 Complex
Funder
National Health and Medical Research Council
Funding Amount
$434,644.00
Summary
Our research will provide a fundamental advance in our understanding of how foreign viruses and pathogens trigger the immune system. Gaining a greater understanding of these central events will facilitate the design of novel therapies to treat immune associated disorders such as transplant rejection, autoimmune disease and some cancers.
The Structure And Composition Of The T-Cell Receptor-CD3 Complex
Funder
National Health and Medical Research Council
Funding Amount
$419,180.00
Summary
My research will use cutting edge imaging techniques to provide a fundamental advance in our understanding of how foreign viruses and pathogens trigger the immune system. Gaining a greater understanding of these central events will facilitate the design of novel therapies to treat immune associated disorders such as transplant rejection, autoimmune disease and some cancers.
Mechanisms Of Dendritic Cell-induced T-cell Tolerance
Funder
National Health and Medical Research Council
Funding Amount
$314,773.00
Summary
Autoimmune diseases constitute a significant medical problem in the developed world and are increasing in incidence. Many control mechanisms exist in the body, but in people with genetic suceptibility to autoimmune disease, the mechanisms fail and the body's immune sytem attacks normal tissues or organs. We have developed a new approach to using the cells which train the immune system to re-educate the cells that would otherwise attack normal healthy tissues in autoimmune-prone individuals. Thes ....Autoimmune diseases constitute a significant medical problem in the developed world and are increasing in incidence. Many control mechanisms exist in the body, but in people with genetic suceptibility to autoimmune disease, the mechanisms fail and the body's immune sytem attacks normal tissues or organs. We have developed a new approach to using the cells which train the immune system to re-educate the cells that would otherwise attack normal healthy tissues in autoimmune-prone individuals. These cells (dendritic cells) are genetically modified to express the molecular targets of the autoimmune response. This in turn switches off the response to these targets. In this project we will explore how these cells can be used to turn off cells of the immune system and if cells of the immune system in turn control the dendritic cell's ability to do this.Read moreRead less