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A New Master Adaptor Protein For Toll-like Receptor Signalling
Funder
National Health and Medical Research Council
Funding Amount
$869,288.00
Summary
Certain proteins on the surface of cells are able to sense danger and infection. These receptors use adaptor proteins to enable cells to respond appropriately. We have discovered a new adaptor that controls receptor signalling in inflammation. This new master adaptor likely has widespread roles in infection and inflammation. We aim to understand how this adaptor works, and to identify ways of blocking its actions. These studies may help us to control inflammation underpinning many diseases.
New Mediators Of GPCR-growth Factor Receptor Transactivation
Funder
National Health and Medical Research Council
Funding Amount
$607,842.00
Summary
Hormones bind to receptors on the surface of cells. Receptors can modify each other’s function and this “cross-talk” is important for the receptors for a peptide hormone (termed angiotensin) and a growth factor receptor (EGFR), which are major regulators of the cardiovascular system. We have identified a number of mediators of the angiotensin-EGFR crosstalk and this current grant aims to use molecular and cellular and in vivo approaches to examine the molecular basis of their actions.
C-Jun N-terminal Kinase Regulation Of Microtubule Destabilizer, Stathmin - A Novel Cytoprotective Pathway
Funder
National Health and Medical Research Council
Funding Amount
$550,230.00
Summary
The loss of heart muscle cells during heart attack and heart failure worsens the severity of heart disease. We will study how to protect heart muscle cells by identifying the molecules involved in controlling survival responses. We will use this knowledge to prevent heart muscle cells from dying when exposed to a range of normally harmful conditions. Our study has the potential to prevent heart muscle cell loss, improve heart function and prevent muscle damage in heart disease.
Cellular Regulation Of Receptor Signalling And Cytokine Responses
Funder
National Health and Medical Research Council
Funding Amount
$859,288.00
Summary
Cell surface receptors and signalling pathways elicit the release of cytokines, or chemical messengers, to control inflammation, which is the body’s response to infection or danger. We have discovered a new signalling pathway that can turn off inflammation and help prevent inflammatory disease. Our studies will now define the molecular details of this pathway and show how new and existing drugs targeting this pathway can be optimally used to treat inflammation and cancer.
Sphingosine Kinase As A Target For Anti-cancer Therapy
Funder
National Health and Medical Research Council
Funding Amount
$590,785.00
Summary
Sphingosine kinase is a protein involved in the development and progression of numerous types of solid tumors and leukaemias. We have recently made a major break-through by identifing how the cancer-inducing activity of sphingosine kinase is controlled. In this study we will target these control mechanisms to develop potential new anti-cancer therapies.
Regulation Of The Signalling Efficiency Of The T Cell Antigen Receptor
Funder
National Health and Medical Research Council
Funding Amount
$456,557.00
Summary
An immune response starts with activation of the T cell antigen receptor (TCR). How T cell receptor signalling begins, however, is not well understood. We have developed a novel imaging approach that allows us to directly observe what happens after an antigen binds to the receptor. The research will provide mechanistic insights into how T cells sense and discriminate antigens. This knowledge will aid the development of cancer immunotherapies and vaccines.
Spatial And Temporal Dimensions Of Mu-opioid Receptor Signalling: Implications For The Development Of Tolerance
Funder
National Health and Medical Research Council
Funding Amount
$799,316.00
Summary
The use of morphine as an analgesic is still limited by undesirable side effects such as tolerance. Despite decades of research, the mechanisms behind the development of tolerance are poorly understood. The ? opioid receptor is a protein expressed at the surface of the cells that is the target of morphine. This project will investigate the signalling events triggered by opioids with unprecedented resolution and will aim to elucidate why morphine elicits more tolerance than other opioid drugs.
Characterisation Of Autophagy Deficiency In Skeletal Muscle Homeostasis
Funder
National Health and Medical Research Council
Funding Amount
$956,237.00
Summary
Defects in skeletal muscle are a cause of muscle disease, and also have broad health implications for diabetes, obesity and liver disease. As such, it is important to understand the processes required for healthy muscle and how signals communicate from muscle to the liver and fat, which integrate whole body metabolism. This application examines how the cellular degradation process known as autophagy integrates these important processes by investigating a novel gene regulator of this pathway.
Why Is The Hijacking Of A Human Erythrocyte Signalling Pathway Essential For Malaria Infection?
Funder
National Health and Medical Research Council
Funding Amount
$510,890.00
Summary
Malaria drug resistance is spreading and the world needs cost-effective new drugs. We found 2 human enzymes, known targets of cancer chemotherapy, to be key for parasite survival in red blood cells. We aim to understand why these human proteins are crucial for the parasite and to identify new human proteins hijacked by malaria. This will open exciting options for antimalarial drug discovery: to harness funds invested in cancer drugs by targeting proteins with dual roles in cancer and malaria.
T cells play a central role in the immune response. The primary event in T cell activation is the triggering of a specific T cell receptor (TCR). Our studies will define new mechanisms for the regulation of TCR-mediated T cell responses. Our studies may yield novel insight into processes that contribute to the development of type 1 diabetes & inflammatory bowel disease.