The Regulation Of B Cell Differentiation And Survival In Response To Antigen Challenge
Funder
National Health and Medical Research Council
Funding Amount
$763,409.00
Summary
Antibodies are crucial to health and well being but can cause disease if their production is not controlled appropriately. This research program examines the basis of antibody production in normal situations and in situations where it is causing illness, in diseases like system lupus erythematosus (SLE) and in cancers of antibody producing cells called multiple myeloma (MM). The aim is to enable control of the process to achieve better health outcomes and better management of disease.
IL21, B-cell Proliferation And The Mechanism Of Memory Formation
Funder
National Health and Medical Research Council
Funding Amount
$981,896.00
Summary
Our immune system can ‘remember’ old infections, which is why we do not suffer from the same pathogen multiple times and why vaccines work. Much of this protection is due to memory B-cells, of which there are different kinds. We think the different memory B-cell subsets have different functions and understanding how they are made and how this is controlled will help us improve responses to critical infections – HIV, Flu – and in critical patient groups – aged people and transplant recipients.
This program brings together a team of researchers from The Walter and Eliza Hall Institute of Medical Research to study how the body regulates antibody production to fight disease. Antibodies are made by B-cells and are essential for a functional immune system. B cells circulate in the body, searching for signs of infection. When they encounter an invader, they mature, with the help of other immune cells, into antibody-producing cells. A small proportion of the cells are set aside as _memory� c ....This program brings together a team of researchers from The Walter and Eliza Hall Institute of Medical Research to study how the body regulates antibody production to fight disease. Antibodies are made by B-cells and are essential for a functional immune system. B cells circulate in the body, searching for signs of infection. When they encounter an invader, they mature, with the help of other immune cells, into antibody-producing cells. A small proportion of the cells are set aside as _memory� cells that can rapidly become antibodyproducing cells should the same infection occur again in the future. This is the basis of vaccination. This program aims to understand how a B cell changes into an antibody-producing cell, by studying the genes that are known to be required for the cells to form, or to do their work. We will study animals whose immune systems are under- or over-active, to find out what part of the antibody-producing process is faulty. Using this information, we hope eventually to be able to study diseases of antibody producing cells in humans (as occur in allergy, asthma, rheumatoid arthritis and leukaemia), to be able to identify the precise cause of the problem, and to suggest a therapy. This information may also be used to improve the outcome of vaccination where an enhanced antibody response is desired.Read moreRead less
The Role Of Linked Cytokines In T Helper Cell Differentiation
Funder
National Health and Medical Research Council
Funding Amount
$390,504.00
Summary
An important class of T cells known as T Follicular Helper cells (TFH) orchestrate the immune response so that we can produce antibodies to fight infection. The novel finding that our Lab made last year is that the molecule interleukin 21 (IL-21) is a growth factor for TFH. The findings we have made thus far could be used in a number of ways. For eg, IL-21could be used to expand numbers of TFH, using them to boost vaccination or natural defences against viruses, bacteria and tumour cells.
The Opposing Genetic Networks Underlying Plasticity Of Humoral Responses
Funder
National Health and Medical Research Council
Funding Amount
$667,783.00
Summary
The immune system makes antibody to clear bacterial and viral pathogens. Specialised types of antibody are needed for different pathogens. This project will study genetic changes that determine the specificity of an antibody response. Regulation of these genes may prohibit production of antibodies and inflammatory mediators that attack the body rather than foreign pathogens. Understanding these processes will identify points of therapeutic intervention for patients with immune disorders.