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The Hippo/Yap Pathway Reprograms Glucose Metabolism To Fuel Tissue Growth.
Funder
National Health and Medical Research Council
Funding Amount
$659,105.00
Summary
Liver disease is a common cause of sickness and death in Australia. While factors critical to liver function are known, the cellular networks responsible for causing liver cancer are largely undefined. Our studies will use zebrafish as a model to study how the circuit known as the Hippo pathway reprograms metabolism to promote liver cancer. These studies will enhance our understanding how metabolism regulates liver growth and identify therapeutic targets to combat liver cancer.
Molecular Approaches To Cardiac Development, Disease And Regeneration
Funder
National Health and Medical Research Council
Funding Amount
$863,910.00
Summary
Prof Harvey’s work explores the molecular and cellular networks that underpin heart development in the embryo and heart regeneration in the adult, and how these networks unravel in heart disease. Based on this knowledge, his work seeks to develop novel approaches for alleviating suffering in babies with congenital heart defects and adults enduring the devastating consequences of heart attack or heart failure.
Redirecting Carbon Flow through Mesophyll and Bundle Sheath Cells of Sugarcane to Produce Poly-3-Hydroxybutyrate. This project is part of the National Priorities "Frontier Technologies for Building and Transforming Australian Industries." Using innovative plant metabolic engineering technologies combined with sophisticated computer modeling we are generating green plants that produce renewable, biodegradable, bioplastics possessing properties such that they are suitable replacements for petrol ....Redirecting Carbon Flow through Mesophyll and Bundle Sheath Cells of Sugarcane to Produce Poly-3-Hydroxybutyrate. This project is part of the National Priorities "Frontier Technologies for Building and Transforming Australian Industries." Using innovative plant metabolic engineering technologies combined with sophisticated computer modeling we are generating green plants that produce renewable, biodegradable, bioplastics possessing properties such that they are suitable replacements for petroleum-derived products in many applications. During the course of these studies, we are increasing our basic level of understanding of plant metabolism of important bioenergy crops. The production of renewable, bioplastics in sugarcane will help to diversify the Australian sugarcane industry by providing a value-added product with significant world-wide markets.Read moreRead less
A unified model of amino acid homeostasis. This project aims to develop a unified model of amino acid homeostasis in mammalian cells and apply it to brain cells. The model will be underpinned by a mathematical algorithm that allows predicting amino acid levels in the cytosol based on fundamental parameters such as transport and metabolism. This project should provide the significant benefit of enabling the prediction of essential functions such as cell growth and survival.
The effect of nitrogen monoxide on intracellular iron metabolism. We discovered that the crucial signalling molecule nitrogen monoxide (NO) mediates iron (Fe) and glutathione (GSH) release by the transporter MRP1 probably as an NO-Fe-GSH complex [DR(2006) PNAS USA 103:7670-5]. During our current ARC grant we have markedly extended these findings by showing that another molecule, GST Pi and MRP1 form part of a coordinated system that stores and transports NO as complexes of Fe and GSH, markedly e ....The effect of nitrogen monoxide on intracellular iron metabolism. We discovered that the crucial signalling molecule nitrogen monoxide (NO) mediates iron (Fe) and glutathione (GSH) release by the transporter MRP1 probably as an NO-Fe-GSH complex [DR(2006) PNAS USA 103:7670-5]. During our current ARC grant we have markedly extended these findings by showing that another molecule, GST Pi and MRP1 form part of a coordinated system that stores and transports NO as complexes of Fe and GSH, markedly extending NO half-life from milliseconds to hours. This has broad implications for understanding NO activity in many processes which have major vital health implications, including tumour cell killing by macrophages and blood pressure control.Read moreRead less
The Effect of Nitrogen Monoxide on Intracellular Iron Metabolism. For the first time, we discovered that nitric oxide (NO) is actively transported from cells by a protein that is known to also transport glutathione (GSH). This is important, as NO was thought to passively diffuse from cells. Active transport overcomes the problems of diffusion which is inefficient and non-targeted. Moreover, NO is released as a complex with iron and GSH which markedly increases its half-life. These findings have ....The Effect of Nitrogen Monoxide on Intracellular Iron Metabolism. For the first time, we discovered that nitric oxide (NO) is actively transported from cells by a protein that is known to also transport glutathione (GSH). This is important, as NO was thought to passively diffuse from cells. Active transport overcomes the problems of diffusion which is inefficient and non-targeted. Moreover, NO is released as a complex with iron and GSH which markedly increases its half-life. These findings have broad implications for understanding the activity of NO in many processes which have major health implications, including tumour cell killing by macrophages, blood pressure etc.Read moreRead less
The effect of nitrogen monoxide on intracellular iron metabolism. During our current ARC grant we discovered a novel relationship between energy metabolism and NO-mediated Fe efflux and showed that glutathione (GSH) is vital for this release mechanism (DR5,6). Intriguingly, this transport process is part of the cytotoxic effector machinery of activated macrophages against tumours, and requires further elucidation. We also showed that CO affects Fe metabolism by binding to Fe, and CO may modulate ....The effect of nitrogen monoxide on intracellular iron metabolism. During our current ARC grant we discovered a novel relationship between energy metabolism and NO-mediated Fe efflux and showed that glutathione (GSH) is vital for this release mechanism (DR5,6). Intriguingly, this transport process is part of the cytotoxic effector machinery of activated macrophages against tumours, and requires further elucidation. We also showed that CO affects Fe metabolism by binding to Fe, and CO may modulate NO's function. We will:-
(1) Examine if NO-mediated Fe release results in GSH efflux
(2) Identify the mechanism of NO-mediated Fe efflux.
(3) Assess the effect of inducing haem oxygenase 1 on Fe metabolism
Read moreRead less
I am a cell biologist-whole body physiologist determining the cellular and molecular mechanisms that lead to insulin resistance in insulin sensitive tissues such as skeletal muscle, liver and adipose tissue. My work primarily focuses on the role of inflam
Symbiosomes and symbiosome membranes of corals and other cnidaria. Reef building corals and many other marine animals depend on symbiotic algae. Very little is known about the ways in which these organisms achieve effective communication with their endosymbionts, yet this is vital for understanding coral bleaching, a major present-day problem. In corals and their relatives, algae are housed in membrane-bounded vesicles, symbiosomes, which mediate the signal regulation that maintains an ongoin ....Symbiosomes and symbiosome membranes of corals and other cnidaria. Reef building corals and many other marine animals depend on symbiotic algae. Very little is known about the ways in which these organisms achieve effective communication with their endosymbionts, yet this is vital for understanding coral bleaching, a major present-day problem. In corals and their relatives, algae are housed in membrane-bounded vesicles, symbiosomes, which mediate the signal regulation that maintains an ongoing and healthy association at the cellular level. Unlike some terrestrial symbioses, little is known about the structure and function of the coral symbiosome. This study sets out to investigate this membrane at the cellular and molecular level.Read moreRead less
How do cells regulate redox environment at the subcellular level? Most organisms live in an aerobic environment that subjects their cells to reactive oxygen species. Reactive oxygen species have been proposed to lead to ageing, and in many diseases the balance between oxidising and reducing conditions (the redox environment) is perturbed. This research will identify how different cellular structures sense and maintain this redox homeostasis, not just in the whole cell, but within the different ....How do cells regulate redox environment at the subcellular level? Most organisms live in an aerobic environment that subjects their cells to reactive oxygen species. Reactive oxygen species have been proposed to lead to ageing, and in many diseases the balance between oxidising and reducing conditions (the redox environment) is perturbed. This research will identify how different cellular structures sense and maintain this redox homeostasis, not just in the whole cell, but within the different organelles in the cell. The work will help identify which cell compartments and processes are affected in different disease states and provide a fundamental understanding of how cells coordinate their different organelles to maintain the balance between oxidising and reducing conditions.Read moreRead less