The Transcriptional Regulation Of Lymphocyte And Dendritic Cell Development
Funder
National Health and Medical Research Council
Funding Amount
$596,051.00
Summary
The distinct cell types of the blood, such as red and white blood cells, are produced in the bone marrow from a rare stem cell. An important characteristic of the stem cell is its ability to balance the need to proliferate and produce the distinct cell types (termed differentiation) and the need to maintain an adequate number of stem cells in their primitive state (termed self-renewal). The outcome of this balance is the production, throughout life, of an astounding number of cells that are requ ....The distinct cell types of the blood, such as red and white blood cells, are produced in the bone marrow from a rare stem cell. An important characteristic of the stem cell is its ability to balance the need to proliferate and produce the distinct cell types (termed differentiation) and the need to maintain an adequate number of stem cells in their primitive state (termed self-renewal). The outcome of this balance is the production, throughout life, of an astounding number of cells that are required to replace those lost each day. This feat is controlled by a handful of important master-regulatory genes that act in a hierarchy to promote the differentiation process. This tightly controlled and multi-step regulation is essential, as failure to coordinate blood cell production is the underlying cause of many blood cell cancers such as leukaemia as well as immune deficiency and anaemia. This research aims to understand how these master-regulators function in isolation and together in producing the white blood cells that are required for our immune response to microbes, vaccination and to prevent cancer.Read moreRead less
Role Of Cytomegalovirus Class I Homologue In Interference With Host NK Cell Responses - A Potential Antiviral Target
Funder
National Health and Medical Research Council
Funding Amount
$428,020.00
Summary
A common property of herpesviruses such as cytomegalovirus is their ability to establish lifelong infection in their hosts. In humans, cytomegalovirus infection can lead to tissue damage in normal individuals and may cause severe disease and even be fatal in individuals with immature or compromised immune systems, such as newborns, AIDS patients, transplant recipients and people treated with chemotherapeutic drugs. The ability of these viruses to establish persistent infection and remain in asso ....A common property of herpesviruses such as cytomegalovirus is their ability to establish lifelong infection in their hosts. In humans, cytomegalovirus infection can lead to tissue damage in normal individuals and may cause severe disease and even be fatal in individuals with immature or compromised immune systems, such as newborns, AIDS patients, transplant recipients and people treated with chemotherapeutic drugs. The ability of these viruses to establish persistent infection and remain in association with the host for its lifetime is a consequence of their capacity to subvert normal host immune responses. This is achieved by destroying or mimicking the functions of molecules and-or pathways critical to normal host defence mechanisms. The viral gene product under investigation is similar to a cellular protein critical for the ability of immune cells to kill foreign and-or infectious agents. We will investigate the mechanisms by which this viral gene product interferes with the host's first line of defence against viral pathogens. The proposed studies will improve our understanding of the strategies used by viruses to escape normal host immune responses and hence provide insights into the rational design of antiviral drugs and vaccines. Since the viral protein under investigation is similar to a cellular protein essential for the ability of immune cells to kill foreign or infectious agents, an improved understanding of the mechanisms of action of this protein will continue to improve our understanding of cellular events which play a crucial role in immune responses involved not only in control of infection, but also in tumour growth and transplant survival. Thus, the proposed studies will provide valuable insight towards the development of new therapies for pathological conditions associated with the above.Read moreRead less
I am an immunologist working on the molecular basis of immune responses, particularly inflammatory responses. My research also focuses on mechanisms of cell migration, and cytokines and chemokines for immune responses. My research also has considerable re
Cytokines In Milk Modulate The Development Of Immune Responses In The Infant
Funder
National Health and Medical Research Council
Funding Amount
$188,912.00
Summary
There is substantial epidemiological evidence that formula fed infants are more susceptible than breast fed infants to auto-immune diseases later in life. However direct evidence is lacking and the mechanism is not understood. We aim to provide direct experimental evidence to test the hypothesis that maternal milk regulates infant immune responses by providing the factors that modulates antigen presentation and priming in the neonatal gut. The significance of the study lies in the absence of the ....There is substantial epidemiological evidence that formula fed infants are more susceptible than breast fed infants to auto-immune diseases later in life. However direct evidence is lacking and the mechanism is not understood. We aim to provide direct experimental evidence to test the hypothesis that maternal milk regulates infant immune responses by providing the factors that modulates antigen presentation and priming in the neonatal gut. The significance of the study lies in the absence of these regulatory factors in infant formula. The results will allow more fully informed decisions regarding breast feeding, and may lead to the development of infant formula that modulate immune responses in a manner analogous to natural maternal milk.Read moreRead less
The Role Of Novel G-Protein Coupled Receptors In Immunity And Inflammatory Diseases
Funder
National Health and Medical Research Council
Funding Amount
$69,684.00
Summary
Recent advances in molecular biology techniques have resulted in the identification of many novel GPCRs. Novel GPCRs expressed selectively on immune cells display a potential target for novel therapies for inflammatory diseases such as Asthma and Rheumatoid arthritis. This project aims to define the activity and significance of a novel group of GPCRs, the GPR40 family. Outcomes of this project will be further understanding of immune cell development and inflammatory disease development.
Development Of Novel Vaccine Strategies To Prevent Genital Tract Chlamydial Infections
Funder
National Health and Medical Research Council
Funding Amount
$33,626.00
Summary
Chlamydia trachomatis is one of the most common sexually transmitted diseases in the developed world. Because an infection can remain undetected it can cause severe long term problems such as infertility. The aim of this project is to develop a successful vaccine using novel immunization regimes that not only protects from infection but also prevents the development of any long term problems.
I am an immunologist-cell biologist investigating the regulation of human immune responses in health and disease. The overall goal of this work is to improve immunity in individuals with immunodeficiencies, or during vaccination, or to attenuate immune re
Investigating The Potential Effect Of A Novel Immune Regulator (JET) In Preventing Graft Versus Host Disease
Funder
National Health and Medical Research Council
Funding Amount
$82,895.00
Summary
Graft Versus Host Disease (GVHD) is the primary complication of bone marrow transplants, in which the donor T-cells react with the recipient’s cells causing organ damage. Current treatments are not specific and cause further health problems. This research aims to test the therapeutic potential of a newly discovered molecule (JET) in treating and preventing GVHD. If successful, JET has the potential for treating other conditions such as rheumatoid arthritis, multiple sclerosis and miscarriages.