Appendicitis, Protection Again Colitis And The Role Of Colonic Regulatory T Cells
Funder
National Health and Medical Research Council
Funding Amount
$67,381.00
Summary
The appendix has been regarded as a useless organ, however, there are evidence showing its removal reduces the risk of developing inflammatory bowel disease. We have shown that this may be due to altered intestinal immune regulation. The project plans to explore the mechanisms responsible for this altered immune regulation. With knowledge of specific elements of disease causation gained from these studies, more effective and targeted treatment options will become available.
Molecular Dissection Of Cytokine-mediated Regulation Of Human B-cell Differentiation.
Funder
National Health and Medical Research Council
Funding Amount
$119,314.00
Summary
Interleukin 21 is a molecule which activates B cells. Defects in this pathway cause immunodeficiency where individuals cannot make antibodies, while constant activation has been reported in mouse models of autoimmunity. Examining these pathways will shed light on the causes of human immune disease, and may reveal molecules that could be targeted for the treatment of immunodeficiency and autoimmunity. Amplification of normal immune responses could lead to the development of improved vaccines.
Lymphocyte Differentiation And Genetics Of Primary Immunodeficiency
Funder
National Health and Medical Research Council
Funding Amount
$143,676.00
Summary
Primary immunodeficiency diseases affect a large number of individuals. Due to abnormal immune responses, these people are at risk of frequent, severe infections, as well as complications of autoimmune disease and cancer. Treatment often involves regular immunoglobulin (antibody) replacement. Through a better understanding of the mechanisms underlying these immunodeficiency diseases, we hope to be able to determine genetic causes, and more cost-effective and targeted treatment options.
Investigating The Role Of TGF-beta In Resident Memory T Cell Induction And Maintenance
Funder
National Health and Medical Research Council
Funding Amount
$92,495.00
Summary
I am a research scientist interested in the immune system. Specifically, I intend to investigate immunological memory, which is the basis of vaccination. This refers to the ability of certain immune cells such as T and B cells to ‘remember’ a pathogen, so that a rapid and enhanced response can be generated upon re-infection with the same pathogen. This can be investigated by experimental techniques such as flow cytometry, histology and confocal microscopy on cells from infected mouse tissue.
The Mechanisms Of SIV Entry Of Follicular Helper T Cells
Funder
National Health and Medical Research Council
Funding Amount
$95,313.00
Summary
Follicular helper T (Tfh) cells are a type of immune cells essential in antibody production. Preliminary data shows that SIV infects macaque Tfh cells. In this project, we will investigate the mechanisms by which SIV enters into Tfh cells, and test the susceptibility of human Tfh cells to HIV-1 infection ex vivo. This project will enable understanding of the fate of Tfh in HIV infection and its role in HIV host defense and it may facilitate the design of vaccine against HIV.
Transcriptional Control Of Peripheral T Cell Differentiation During Pathogen Infection And Autoimmunity
Funder
National Health and Medical Research Council
Funding Amount
$92,314.00
Summary
White blood cells, specifically helper and killer T cells, play an important role in fighting infection. They are tightly regulated and if not properly controlled can lead to aggressive autoimmune diseases such as diabetes and multiple sclerosis. My studies will elucidate the mechanisms behind the regulation of T cells at steady-state and during disease. Insights gained from this project will have implications for the design of new approaches to combat infectious and autoimmune diseases.
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
Analysis Of Proinsulin-epitope Specific CD4+ T Cells In Blood Of People With Type 1 Diabetes
Funder
National Health and Medical Research Council
Funding Amount
$122,834.00
Summary
Type 1 diabetes (T1D) is an incurable autoimmune disease characterised by T-cell mediated destruction of insulin-secreting cells of the pancreas. Development of preventative therapies is hampered by paucity of knowledge regarding the targets of the autoimmune T-cell response. We have recently identified epitopes ‘seen’ by islet-infiltrating T-cells, located in proinsulin. Our aim is to examine proinsulin-specific T-cell responses in the peripheral blood of people with and without T1D.
Mechanisms Of T Cell Mediated Injury In Renal Vasculitis
Funder
National Health and Medical Research Council
Funding Amount
$133,351.00
Summary
Anti-MPO glomerulonephritis (GN) is an aggressive disease causing severe and permanent injury to kidneys. This disease is thought to be due to an immune-mediated response to a protein (MPO) in neutrophils (a type of white blood cell). There is some evidence that other immune cells, CD4+ T cells, may be important in this disease. Experiments using models of anti-MPO GN will aim to define the role and mechanisms by which CD4+ T cells cause inflammation in the kidney.
Dengue Host-cell Signalling Interactions: Novel Insights And Interventions
Funder
National Health and Medical Research Council
Funding Amount
$124,676.00
Summary
Dengue is a virus transmitted by mosquitoes that occurs in many tropical and subtropical regions. Approximately 40% of the world's population is at risk of this infection. Sometimes it can be mild but it can lead to severe illness and death especially with second infections. The body produces a response that over-reacts to the virus in these severe infections. The project aims to understand why the body does this and what parts of the immune system are affected using a model in mice.