Using Single-cell Genomics To Resolve Functional Diversification By CD4+ T Cells In Vivo
Funder
National Health and Medical Research Council
Funding Amount
$1,048,096.00
Summary
During immune responses, individual CD4+ T cells multiply and produce hundreds of descendants, with close relatives within a family often developing very different skills. How such differences emerge from one ancestor remains unclear. We use new methods to look at individual CD4+ T cells in unprecedented detail, allowing us to see how close relatives begin to grow apart. Using this, we hope to find novel ways of educating CD4+ T cells to prevent infectious and immune-mediated diseases.
Understanding The Role Of CD4 T Cells In Viral Infection: A Means Of Improving Anti-viral Immunotherapy.
Funder
National Health and Medical Research Council
Funding Amount
$672,009.00
Summary
Development of therapies to prevent and treat chronic infections is of the highest priority as they cause considerable clinical challenges and on-going health care costs. Efforts to improve treatment of chronic viral infections, such as those caused by HIV, hepatitis C virus and human cytomegalovirus, require a better understanding of the immune responses needed to control these viruses long-term. This proposal will investigate the role of CD4+ T cells in controlling chronic viral infection.
The Molecular Basis Of Human CD4+ T-cell Responses In Autoimmune Diabetes
Funder
National Health and Medical Research Council
Funding Amount
$656,498.00
Summary
Over 120,000 Australians currently suffer from type 1 diabetes. This incurable disease typically strikes in childhood or adolescence and is caused by the immune system destroying the cells which make insulin. This project aims to determine how and why the insulin producing cells are recognized by the immune system. Eventually this work will lead to new vacccines to prevent the immune system from destroying the insulin producing cells.
Regulation Of T Cell Effector Function In Peripheral Tissues
Funder
National Health and Medical Research Council
Funding Amount
$698,550.00
Summary
Protection from infections relies on different types of immune cells. While some of these cells are found in the blood, others reside in peripheral tissues such as the skin. We will analyse the function of these peripheral immune cells to understand how they work to fight off infections. We will also investigate how so-called memory cells that permanently reside in peripheral tissues can protect from re-infection with similar bacteria or viruses.
Identifying The Ontogeny And Fate Of T Follicular Helper Cells By Two-photon Photoconversion
Funder
National Health and Medical Research Council
Funding Amount
$623,070.00
Summary
The aim of this proposal is to investigate immune cells called T follicular helper cells using a novel microscopy-based method that we have developed. This method lets us ‘tag’ these cells in a way that enables us to distinguish them from all other cells and follow them as they migrate to different immunological compartments during the response. T follicular helper cells are important for protective immune responses against pathogens and a better understanding of this T cell subset will aid vacc ....The aim of this proposal is to investigate immune cells called T follicular helper cells using a novel microscopy-based method that we have developed. This method lets us ‘tag’ these cells in a way that enables us to distinguish them from all other cells and follow them as they migrate to different immunological compartments during the response. T follicular helper cells are important for protective immune responses against pathogens and a better understanding of this T cell subset will aid vaccine design.Read moreRead less
Characterisation And Development Of Type-2 NKT Cells
Funder
National Health and Medical Research Council
Funding Amount
$853,885.00
Summary
Humans defend themselves from foreign pathogens by mounting a protective immune response. Type-2 NKT cells recognise foreign lipid molecules and play a key role in immunity. This project is designed to understand to how Type-2 NKT cells develop within the body, how they recognise lipid molecules and how they carry out their immune functions. This work will have important implications in understanding the role of NKT cells in human health and disease.
Molecular And Cellular Control Of Human Th9 Cell Differentiation In Health And Disease
Funder
National Health and Medical Research Council
Funding Amount
$550,888.00
Summary
T helper 9 (Th9) cells are a recently defined population of CD4+ T cells that have been implicated in immunological disorders ranging from allergy, asthma, inflammatory bowel disease, and cancer, to host defence against fungal and parasitic infections. As such, Th9 cells are extremely important to human health and disease. This project aims to define the mechanisms involved in the generation, regulation and function of human Th9 cells.
The Impact Of Micropolymorphism Within The T Cell Receptor Genes And Their Target Antigenic Peptides
Funder
National Health and Medical Research Council
Funding Amount
$365,126.00
Summary
T lymphocytes play a pivotal role in the immune system by recognising virus-infected tissue through the use of highly specific T cell receptors (TCRs). This project will investigate the importance of genetic variation in the TCR genes in influencing how we fight infections. Another aim is to examine how the immune system tolerates genetic variation in an infecting virus. Advances in these areas will aid in the development of new "intelligent" vaccines.
The Mezzanine T Cell Response: Intervening At The Coal Face
Funder
National Health and Medical Research Council
Funding Amount
$765,585.00
Summary
In an initial immune response, specialised cells in lymph nodes tell T cells to multiply; the stimulated T cells depart and enter target tissue (e.g. lung in the case of flu). We describe a new response whereby the target tissue itself can tell T cells to multiply further. This response in target tissues reveals a new way of altering immune responses. This is especially important as in many diseases, the primary lymph node response has already occurred, so cannot be therapeutically intervened.
Following The T Cell Repertoire Over The Human Life Course
Funder
National Health and Medical Research Council
Funding Amount
$473,159.00
Summary
T cells are critical to human health being our second and last line against infectious disease and cancer. However, we know very little about how this important immune compartment operates on a top-down scale. This project will use new technology to resolve this immune compartment to high detail. We will then use this new method to track the T cell compartment from the first years of life and across years of adult life to see how this vital immune compartment evolves along the human life course.