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Structure And Composition Of The Pre-T Cell Receptor-CD3 Complex
Funder
National Health and Medical Research Council
Funding Amount
$307,946.00
Summary
In order to recognize a wide variety of pathogens, humans produce many different T cell receptors (TCRs) by the process of gene-rearrangement. However, gene-rearrangement may not always lead to a functioning TCR. We are studying the pre-TCR protein that is responsible for monitoring the success of gene-rearrangement and is thus essential for the formation of a robust immune system. Understanding pre-TCR function will lead to new treatments for immune related diseases.
In Vivo Imaging Of Protective And Malignant B Cell Function
Funder
National Health and Medical Research Council
Funding Amount
$431,412.00
Summary
B cells are responsible for producing antibody that protects us from infection. Disruption of healthy B cell function can lead to a myriad of diseases including immunodeficiency, autoimmunity and blood cancers such as leukaemia. The aim of my work is to use powerful microscopy to visualise how mutated B cells interact with their surrounding environment in real-time. These studies will allow the development of new treatments for cancer and immune conditions that target these interactions.
Investigating B Cell Development, Maintenance And High-affinity Antibody Production By ENU Mutagenesis
Funder
National Health and Medical Research Council
Funding Amount
$408,388.00
Summary
B cells are essential for the protection against infections. This application aims to identify new genes that are crucial for the development or function of B cells and will investigate how mutations in newly discovered genes contribute to defects in the development and function of B cells and the pathogenesis of B cell leukaemia.
Transcriptional Regulation Of Hematopoietic Commitment
Funder
National Health and Medical Research Council
Funding Amount
$289,985.00
Summary
Blood cell formation is a tightly regulated process and provides an important model for our understanding of blood homeostasis. Perturbations result in a number of disorders such as leukaemia. The application of stem cells to many diseases is being pursued; yet, to be successful knowledge of normal cellular behavior is crucial. I aim to improve our understanding of these processes and help to provide the framework for future studies aimed at more directly manipulating blood cell functions.
Determining The Structure Of A Soluble Cytokine Receptor Complex
Funder
National Health and Medical Research Council
Funding Amount
$509,017.00
Summary
There is a pressing need to develop improved therapeutics to treat many forms of cancer and respiratory diseases. This proposal concerns the biochemical investigation of a group of protein hormones and their associated receptors that are implicated in blood cell cancers and for which current treatments are only partly effective . Our work will focus on determining the 3-dimensional shape and function of this group of proteins in complex with one another which will provide us with an understandin ....There is a pressing need to develop improved therapeutics to treat many forms of cancer and respiratory diseases. This proposal concerns the biochemical investigation of a group of protein hormones and their associated receptors that are implicated in blood cell cancers and for which current treatments are only partly effective . Our work will focus on determining the 3-dimensional shape and function of this group of proteins in complex with one another which will provide us with an understanding of how these proteins communicate with one another. This information may provide a basis for the design of new drugs that can specifically block the activity of these protein hormones, thereby providing new treatment possibilities for these blood cell cancers.Read moreRead less
Asymmetric Cell Divison In T Cell Development: Consequences For Immunity And Cancer
Funder
National Health and Medical Research Council
Funding Amount
$642,608.00
Summary
Human health depends upon the development of an immune system that can effectively control infection without damaging normal tissue. In this project, we assess a new paradigm by which immune cell development might be controlled, in which an immune cell precursor divides in such a way that its two daughters inherit different molecular constitutents that subsequently regulate the adoption of different cell fate. The likely consequences of this phenomonon on immunity and cancer will be explored.
Investigating The Role Of TGF-beta In Resident Memory T Cell Induction And Maintenance
Funder
National Health and Medical Research Council
Funding Amount
$92,495.00
Summary
I am a research scientist interested in the immune system. Specifically, I intend to investigate immunological memory, which is the basis of vaccination. This refers to the ability of certain immune cells such as T and B cells to ‘remember’ a pathogen, so that a rapid and enhanced response can be generated upon re-infection with the same pathogen. This can be investigated by experimental techniques such as flow cytometry, histology and confocal microscopy on cells from infected mouse tissue.
The Role Of Mal In Toll-like Receptor Signal Transduction Of The Pro-inflammatory Response.
Funder
National Health and Medical Research Council
Funding Amount
$472,500.00
Summary
Sepsis kills more people per year than the cancers of the breast, colon, prostate and pancreas combined. Sepsis occurs in 1 of 50 hospital admissions and is the leading cause of death n intensive care units. The instance of sepsis has doubled in the last decade and is expected to increase. One of the major causes of sepsis si lipopolysaccharide (LPS), the main constituent of gram-negative bacteria's cell wall, and the prototypic inducer of the pro-inflammatory response of the innate immune syste ....Sepsis kills more people per year than the cancers of the breast, colon, prostate and pancreas combined. Sepsis occurs in 1 of 50 hospital admissions and is the leading cause of death n intensive care units. The instance of sepsis has doubled in the last decade and is expected to increase. One of the major causes of sepsis si lipopolysaccharide (LPS), the main constituent of gram-negative bacteria's cell wall, and the prototypic inducer of the pro-inflammatory response of the innate immune system. Dysregulation of the pro-inflammatory response can lead to sepsis. Recently, the mammalian receptor for LPS was found to be Toll-like receptor (TLR)-4, the activation of which activates a signal transduction pathway that initiates the pro-inflammatory response. We have previously shown a key role for an adapter protein called Mal in mediating signal transduction pathways upon activation of TLR-4. Interaction of Mal with a key signal transduction mediator called TRAF6 has been shown to induce the activation of the pro-inflammatory response. Furthermore, Mal has been found to undergo degradation which may indicate a means of regulating the continued activation of the pro-inflammatory pathway. This research program will investigate the role of Mal in mediating signal transduction in TLR activated macrophages, key responsive cells of the innate immune system to microbial infection. A greater understanding of these processes will assist in the development of therapeutics to alleviate the consequences of microbial-induced inflammation, including chronic inflammatory diseases and sepsis.Read moreRead less