The Impact Of Therapy On T-cell Recognition Of Mutated Tumour Neo-antigens
Funder
National Health and Medical Research Council
Funding Amount
$1,126,685.00
Summary
Cancer is caused by mutations which should be 'seen' and destroyed by the patients immune cells, similar to how immune cells protect us against viruses. But they don't. This grant will study how current cancer treatments help the immune cells 'see' these mutations. We will undertake these studies in the important cancers lung cancer and mesothelioma.
The Relationship Between Cancer Surgery, Lymph Nodes, T Cells And Immunotherapy.
Funder
National Health and Medical Research Council
Funding Amount
$960,585.00
Summary
Cancer treatment involves surgery for millions of patients annually, however, many patients do relapse. Surgery often involves removal of cancer-associated lymph nodes at the site. To improve surgical outcomes new immunotherapy strategies aim to activate the patients’ immune cells to eradicate tumours. However the main repository for these immune cells is in the very lymph tissue removed at surgery. This project will investigate the role of remaining lymph nodes in patient recovery/response.
Compartmental Analysis Of T-cell Responses In Thoracic Malignancies
Funder
National Health and Medical Research Council
Funding Amount
$851,403.00
Summary
To improve immune therapy for cancer we have to be able to determine how cancer patients ‘see’ mutated cancer proteins. Blood is the easiest & most useful source of immune ‘killer’ cells for that task, but the lymph node that drains the tumour and the fluid that bathes a tumour probably contain a much higher number of these killer cells than blood. If so, studying them would help us better track responses to therapy and enable us to choose the best mutated proteins for a vaccine.
Antigen Selection In The MHC-restricted Cellular Immune Response
Funder
National Health and Medical Research Council
Funding Amount
$175,570.00
Summary
The body's white cells eliminate microorganisms through the actions of immune lymphocytes and other cells which conspire to kill and neutralise these unwanted guests. When microorganisms hide inside the cells of the body they are still detected by a set of T lymphocytes which have specific receptors for scrutinising the surface of cells for any changes which might signal an intracellular infection. The immune system is ever vigilant in its search for signs of infection which are generally appare ....The body's white cells eliminate microorganisms through the actions of immune lymphocytes and other cells which conspire to kill and neutralise these unwanted guests. When microorganisms hide inside the cells of the body they are still detected by a set of T lymphocytes which have specific receptors for scrutinising the surface of cells for any changes which might signal an intracellular infection. The immune system is ever vigilant in its search for signs of infection which are generally apparent when molecules called antigens are released by microorganisms and captured by the body's cells. This activates lymphocytes resulting in an immune response capable of eliminating the microorganisms. Scrutiny of the body's cells by lymphocytes occurs continuously even when there is no infection present in the body. Following infection of a cell, microbial antigens reveal the infection by their appearance on the cell surface where they are detected by the immune system's lymphocytes. This occurs through a mechanism called antigen presentation. During antigen presentation the proteins inside the cell, including those of any invading microorganism, are first degraded into shorter molecules called peptides. This event is called antigen processing. A fraction of the peptides created by antigen processing are captured by specialised receptors present on all cells. These receptors are called HLA or histocompatibility molecules. This project examines the molecular events which mediate the capture of peptide antigens by HLA molecules. The main focus is on those peptide antigens which elicit killer T cell responses by the immune system. A knowledge of how these peptides are selected for presentation and how they are captured and carried to the cell surface is fundamental to understanding immune responses to microorganisms, tumours, allergens, transplants and self tissues as in autoimmunity. Therefore the study is of great general relevance.Read moreRead less