Cellular And Molecular Events During Antigen Dependent B Cell Differentiation
Funder
National Health and Medical Research Council
Funding Amount
$283,329.00
Summary
The immune system is essential for protecting us against invasion from without by viruses and bacteria and invasion from within by cancer cells. Among the white blood cells making up this system are those responsible for producing antibodies. To ensure that all possible infections and tumours can be recognised, the body needs to manufacture a very large number of these cells on a continuous basis. The aim of this project is to work out the mechanism responsible for controlling their production a ....The immune system is essential for protecting us against invasion from without by viruses and bacteria and invasion from within by cancer cells. Among the white blood cells making up this system are those responsible for producing antibodies. To ensure that all possible infections and tumours can be recognised, the body needs to manufacture a very large number of these cells on a continuous basis. The aim of this project is to work out the mechanism responsible for controlling their production and function using a novel experimental system. By pinpointing the different stages involved in antibody production in the normal host we should be in a better position to make longer lasting vaccines in the future and to understand what goes wrong with these white cells in disease. In particular, the results should shed light on the chronic form of leukaemia called myeloma and some of the autoimmune disorders like the rheumatic diseases which occur when the antibodies being produced attack our own tissues.Read moreRead less
Mechanisms Controlling Antibody Production By Modulating B Cell Antigen Receptor Signalling
Funder
National Health and Medical Research Council
Funding Amount
$536,628.00
Summary
This project will analyse mechanisms that regulate antibody production in health and disease. In health, antibodies are normally made exclusively against infectious agents, providing long-lasting immunity. Unknown errors in the control of antibody production result in autoimmune diseases such as systemic lupus or rheumatoid arthritis, where antibodies are made against parts of our own bodies, or result in allergies where antibodies are made against innocuous elements of our environment, or resul ....This project will analyse mechanisms that regulate antibody production in health and disease. In health, antibodies are normally made exclusively against infectious agents, providing long-lasting immunity. Unknown errors in the control of antibody production result in autoimmune diseases such as systemic lupus or rheumatoid arthritis, where antibodies are made against parts of our own bodies, or result in allergies where antibodies are made against innocuous elements of our environment, or result in uncontrolled B cell accumulation in lymphoma, leukemia and myeloma. In order to develop rational, specific methods for treating these diseases, it is necessary to identify and understand the biochemical mechanisms that normally control antibody formation against infectious agents, self components, and innocuous environmental agents. The project focuses on defining the biochemical mechanisms by which the antibody-forming cells, B lymphocytes, sense infectious, innocuous, or self components. These cells carry specific receptors that bind these components and transmit signals into the B lymphocyte. The research will determine how different types of signal are transmitted by the receptor so that, normally, large amounts of antibody are made against infectious agents but very little antibody is made against self components, and that B cell accumulation is tightly limited. By identifying how the types of signals are changed, the results of this project will reveal control mechanisms that may be altered in autoimmunity, allergy, immune deficiency, or lymphoma, and that may be able to be used as drug targets to cure these diseases.Read moreRead less
Mechanisms Controlling Antibody Production By Modulating B Cell Antigen Receptor Signalling
Funder
National Health and Medical Research Council
Funding Amount
$452,125.00
Summary
This project will analyse mechanisms that regulate antibody production in health and disease. In health, antibodies are normally made exclusively against infectious agents, providing long-lasting immunity. Unknown errors in the control of antibody production result in autoimmune diseases such as systemic lupus or rheumatoid arthritis, where antibodies are made against parts of our own bodies, or result in allergies where antibodies are made against innocuous elements of our environment. In order ....This project will analyse mechanisms that regulate antibody production in health and disease. In health, antibodies are normally made exclusively against infectious agents, providing long-lasting immunity. Unknown errors in the control of antibody production result in autoimmune diseases such as systemic lupus or rheumatoid arthritis, where antibodies are made against parts of our own bodies, or result in allergies where antibodies are made against innocuous elements of our environment. In order to develop rational, specific methods for treating these diseases, it is necessary to identify and understand the biochemical mechanisms that normally control antibody formation against infectious agents, self components, and innocuous environmental agents. The project focuses on defining the biochemical mechanisms by which the antibody-forming cells, B lymphocytes, sense infectious, innocuous, or self components. These cells carry specific receptors that bind these components and transmit signals into the B lymphocyte. The research will determine how different types of signal are transmitted by the receptor so that, normally, large amounts of antibody are made against infectious agents but very little antibody is made against self components. By identifying how the types of signals are changed, the results of this project will reveal control mechanisms that may be altered in autoimmunity, allergy or immune deficiency, and that may be able to be used as drug targets to prevent unwanted antibody production to cure these diseases.Read moreRead less
Therapeutic Potential Of Peritoneal Mononuclear Phagocytes From Peritoneal Dialysis Patients
Funder
National Health and Medical Research Council
Funding Amount
$375,817.00
Summary
Mononuclear phagocytes (MP) are key cells which are now being used to treat various diseases. In Australia, more than 10 million end stage kidney disease(ESKD) patients are treated with chronic dialysis, and more than 20% of them are on peritoneal dialysis (PD). Each PD patient discards more than 20 million MP in dialysate daily. We will explore the possibility of using these MP to treat diseases including transplant rejection.
Dendritic Cells Govern The Balance Between Immunity And Homeostasis To Inhaled Antigen
Funder
National Health and Medical Research Council
Funding Amount
$816,131.00
Summary
The development of better intranasal vaccines hinges on the improved understanding of how the immune response is initiated following vaccine delivery into the upper airways. In this project we will provide fundamental understanding of how immune responses to inhaled antigens are regulated; this considerable conceptual advance will lay the foundation for which new intranasally delivered immunotherapies will ultimately emerge.