Our research has identified unprecedented communications between the microbes that colonize our body’s surfaces and killer T cell immunity. Our findings indicate that microflora is key to a healthy balance between two immune mediator systems that have opposing effect on T cell immunity. The project will extend our understanding of how this regulated and seeks to harness these novel insights to explain the well known, but poorly understood role of microbes in autoimmune diseases.
Understanding the immune response is proving extremely complex and promising results for disease treatments from animal models are often difficult to translate to new clinical therapies. My research is unearthing weaknesses in our current knowledge of the immune system and seeking to replace them with a foundation that can exploit new developments in computer modelling and systems biology. In this way I aim to rationally manipulate the immune response.
Using A Novel Assay That Detects Antigen Specific CD4+ And Regulatory T Cells To Further Understand Reconstitution Of Antigen Specific Immune Response Post Anti-retroviral Therapy In Subjects With HIV And In The Diagnosis Of Latent TB
Funder
National Health and Medical Research Council
Funding Amount
$102,780.00
Summary
The process by which the immune system recovers after commencement of therapy for HIV is not well understood. We will use a new test to monitor the immune system's ability to recognise and react to different antigens inorder to understand the factors that affect immune recovery in patients on therapy for HIV. We will also evaluate the use of this new test in the diagnosis of latent TB. Improvement in detection will lead to treatment of latent TB thus reduction of cases of active TB.
Characterization Of H. Pylori –specific CD4 T Cell Responses And The Evaluation Of The Basic Requirements For The Development Of An Effective Anti-H. Pylori Vaccine
Funder
National Health and Medical Research Council
Funding Amount
$313,161.00
Summary
H. pylori infect over half of the global population. Although infection results in asymptomatic gastritis in most cases 10 % develop gastric ulcers and cancer. Current vaccination strategies have failed to protect humans from infection. We aim to characterise the main immune cells involved in H. pylori infection, specifically the bacteria-specific CD4 T cells. We will then try to understand the basic requirements for a successful vaccine in order to develop new, improved anti-H. pylori vaccines.
I am an immunologist focusing on understanding how can we combat chronic infections while preventing autoimmunity. This proposal aims to investigate how a poorly understood subset of lymphocytes called Tfh cells are regulated to promote the formation of protective antibodies, and prevent development of harmful antibodies that go on to cause or exacerbate diseases such as lupus, rheumatoid arthritis and type 1 diabetes. Our discoveries will illuminate novel drug targets for these diseases and hel ....I am an immunologist focusing on understanding how can we combat chronic infections while preventing autoimmunity. This proposal aims to investigate how a poorly understood subset of lymphocytes called Tfh cells are regulated to promote the formation of protective antibodies, and prevent development of harmful antibodies that go on to cause or exacerbate diseases such as lupus, rheumatoid arthritis and type 1 diabetes. Our discoveries will illuminate novel drug targets for these diseases and help generate more potent vaccines.Read moreRead less
Multiple Paths Of TFH Differentiation And Their Impact On B Cell Protection Against Infection
Funder
National Health and Medical Research Council
Funding Amount
$923,466.00
Summary
Collaboration between T and B cells is crucial for immune protection and underpins current vaccine strategies. We have revealed an unappreciated flexibility that exists in T cell responses which varies the instructions they give B cells. It is likely this tailors immune responses to ensure protection to countless infectious diseases. This project uses cutting-edge technologies to understand this flexibility and has important implications for vaccine design and treatment of infectious disease.
Structural And Functional Studies Of T-cell Mediated Recognition Of Microbial Lipids Presented By CD1c
Funder
National Health and Medical Research Council
Funding Amount
$316,449.00
Summary
The CD1c molecule plays an important role in the immune system by presenting lipid-based antigen of pathogens to the surface of an antigen presenting cell (APC) that is infected by the pathogen. Once a T cell receptor (TCR), which is expressed on the surface of a Killer T cell, recognises CD1c presenting pathogenic lipid, any infected cells will be destroyed. My research will look at the molecular mechanism of T cell recognising tuberculosis related lipids that is presented by CD1c.
The Phenotype Of Protective Cytotoxic T Cell Responses During Viral Infections
Funder
National Health and Medical Research Council
Funding Amount
$841,114.00
Summary
T cell responses are important to establish protection against pathogens and some cancer via generation of memory cells that can be maintained long term and defeat promptly re-infections. This proposal aim at determining important factors that drive the success of immunological memory by employing single cell technologies and unique longitudinal samples from subjects infected with hepatitis C virus. The finding of this study will inform current vaccine research and immunotherapies.