Roles Of Impaired Apoptosis And Differentiation In Tumourigenesis And Therapy
Funder
National Health and Medical Research Council
Funding Amount
$21,656,910.00
Summary
The ten scientific laboratories in this program have joined forces to investigate two ways in which tumours develop. Both are of particular interest, because they suggest new ways in which cancer might be overcome. Most of our tissues are continually renewed throughout life by production of new cells. Therefore many of the old cells in each tissue must die off to maintain the proper cell numbers. To eliminate cells that are no longer needed or have become damaged, the body has developed a remark ....The ten scientific laboratories in this program have joined forces to investigate two ways in which tumours develop. Both are of particular interest, because they suggest new ways in which cancer might be overcome. Most of our tissues are continually renewed throughout life by production of new cells. Therefore many of the old cells in each tissue must die off to maintain the proper cell numbers. To eliminate cells that are no longer needed or have become damaged, the body has developed a remarkable cell suicide process termed apoptosis. Unfortunately, however, occasionally a random accident to the genes in one of our cells prevents the machinery for apoptosis from being turned on. In that case, the cell will not die when it should and, by continually dividing, it may eventually give rise to a cancer. Since most cancer cells still retain most of the machinery for apoptosis, however, a drug that could switch on this natural cell death machinery would provide a promising new approach to cancer therapy. Identifying and developing such drugs is one major long-term goal of this program. The other focus of our program concerns stem cells. These are rare cells with the remarkable ability to generate an entire tissue. For example, one of our laboratories has identified stem cells that can generate all the cells in the breast. The almost unlimited regenerative capacity of stem cells has a built-in danger. If a stem cell acquires the ability to proliferate excessively, it can go on to form a tumour. Indeed, many cancer researchers now suspect that rare stem cells within a tumour cause its inexorable growth. If tumour growth is maintained by stem cells, it will be essential to develop new forms of therapy that target these rare cancer stem cells rather than merely the bulk of the tumour cells. This is another key long-term goal of our program.Read moreRead less
Understanding G Protein-Coupled Receptors (GPCRs): Accelerating Discovery From Concept To Clinic.
Funder
National Health and Medical Research Council
Funding Amount
$6,871,789.00
Summary
G Protein-Coupled Receptors (GPCRs) form the largest family of receptors (and thus drug targets) in living organisms. Currently, the major reason that new drugs fail to reach the clinic is lack of appropriate drug effect (approx. 30%). Thus, we need a better understanding of how GPCRs work and how this relates to disease. Our Program addresses this knowledge gap, using GPCR models that are relevant to treatment of metabolic, cardiovascular and central nervous system disease.
THE INTERFACE BETWEEN INNATE AND ADAPTIVE IMMUNITY
Funder
National Health and Medical Research Council
Funding Amount
$4,905,420.00
Summary
Allergic disorders including asthma are amongst the most prevalent diseases in Australia afflicting up to 25% of the population and costing the Australian Government in excess of $600 million annually. This program aims to understand the molecular and cellular mechanisms controlling airway inflammation, focusing on the cross-talk between scavenger cells at airway surfaces and circulating cells of the immune system. These studies will combine sophisticated mouse models of airway inflammation in t ....Allergic disorders including asthma are amongst the most prevalent diseases in Australia afflicting up to 25% of the population and costing the Australian Government in excess of $600 million annually. This program aims to understand the molecular and cellular mechanisms controlling airway inflammation, focusing on the cross-talk between scavenger cells at airway surfaces and circulating cells of the immune system. These studies will combine sophisticated mouse models of airway inflammation in the laboratory with clinical investigation and analysis of human tissue. Understanding these processes will translate into better treatments for patients suffering from life-threatening allergy and asthma.Read moreRead less
Developmental Aspects Of Respiratory Inflammation, Allergy And Asthma
Funder
National Health and Medical Research Council
Funding Amount
$7,169,609.00
Summary
Asthma develops as a complex series of interactions between genetic susceptibility and environmental exposures occurring in early life. While many children grow out of asthma others do not and develop the chronic form of the disease that persists into adult life. Our research involves understanding why some susceptible children develop asthma and why this becomes chronic in some. We will undertake studies in children to find out how and why this occurs. A major part of our studies involve longit ....Asthma develops as a complex series of interactions between genetic susceptibility and environmental exposures occurring in early life. While many children grow out of asthma others do not and develop the chronic form of the disease that persists into adult life. Our research involves understanding why some susceptible children develop asthma and why this becomes chronic in some. We will undertake studies in children to find out how and why this occurs. A major part of our studies involve longitudinal studies in cohorts of children recruited before birth. Having the ability to study children as they grow and develop conditions such as allergies and asthma allows us to understand why these conditions occur and allow us to predict which children are likely to develop them. Our research Program also has a solid focus on Translational Research, in which we will use the findings from our basic science studies to develop and test new methods of preventing and of treating asthma. These studies will include new methods for preventing the development of allergies, preventing the damage done to the lungs by severe viral respiratory infections in early life and better methods of treating established allergic asthma by improving immunotherapy techniques. By its very nature, primary prevention of disease in young children is controversial and raises some interesting questions. As part of this Program we intend to initiate consultation and debate in public, academic, regulatory and industry circles. An important role for our Program is shifting the current emphasis away from treatment of established disease towards preventing disease occurring. This is the best way to decrease the health, social and economic burden of chronic diseases such as asthma.Read moreRead less
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
Antigen Presentation, Recognition And The Immune Response
Funder
National Health and Medical Research Council
Funding Amount
$15,738,750.00
Summary
The early events in immunity require various molecular interactions. We will examine the structural and biophysical basis for some of these interactions, including those associated with transplant rejection and autoimmunity. We will explore the impact of variation in immune response genes on immune evasion and disease susceptibility. Our basic research will determine the mechanisms by which the immune system discriminates between different self and micro-organism associated determinants. We will ....The early events in immunity require various molecular interactions. We will examine the structural and biophysical basis for some of these interactions, including those associated with transplant rejection and autoimmunity. We will explore the impact of variation in immune response genes on immune evasion and disease susceptibility. Our basic research will determine the mechanisms by which the immune system discriminates between different self and micro-organism associated determinants. We will address the structural and biochemical basis for operation of an immune molecule called tapasin and unravel the basis for how some viruses escape the function of this molecule, thus allowing their immune evasion. We will also explore the use of modified small proteins called peptides in a humanized model of gluten hypersensitivity resembling that of Celiac disease. The molecular basis of the natural human immune system's capacity to recognise and reject grafts will be examined. This complements work aimed at improving the prediction of clinical graft rejection in transplantation. Dendritic cells play a central role in immunity, responsible for capturing material, whether from micro-organisms or self tissues, and presenting it to cells of the immune system. Our program will study the development and immunological function of the different dendritic cell subtypes. We will determine the relative contribution of each to the maintenance of immune tolerance and to the induction of immunity to several pathogens, including herpes simplex virus and malaria. Novel dendritic cell surface molecules that we have discovered will be tested for their ability to enhance the effectiveness of vaccines. Overall, this program utilises a broad array of immunological techniques designed to dissect the development and function of various immune system cell types and determine the structure-function relationships between important cell surface molecules involved in immunity.Read moreRead less
This established team of investigators will research into the molecular control of white blood cell formation and function, using a multidisciplinary, team approach to fundamental biological questions with a focus on potential clinical and commercial outcomes. The team will also attempt to identify new validated targets for therapeutic intervention by using both forward and reverse genetic approaches in mice coupled with complete phenotypic analyses of the blood cell system.
This Program Grant has three investigators, Professor Denis Moss, Dr Rajiv Khanna and Dr Scott Burrows, each of whom has collaborated on two previous Program Grants. The group is well known in the area of herpesvirus immunology and have published numerous scientific papers in leading medical journals. This program grant focuses on two human herpesviruses. The first is called Epstein-Barr virus which causes glandular fever and is associated with arange of human cancers. The second virus is human ....This Program Grant has three investigators, Professor Denis Moss, Dr Rajiv Khanna and Dr Scott Burrows, each of whom has collaborated on two previous Program Grants. The group is well known in the area of herpesvirus immunology and have published numerous scientific papers in leading medical journals. This program grant focuses on two human herpesviruses. The first is called Epstein-Barr virus which causes glandular fever and is associated with arange of human cancers. The second virus is human cytomegalovirus which can cause birth defects and problems in transplant patients. In this program we are investigating how the body�s immune system controls these viruses to exploit this information to develop new treatments.Read moreRead less