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Cholestasis And Hepatocyte Injury In Chronic Liver Disease
Funder
National Health and Medical Research Council
Funding Amount
$615,967.00
Summary
The aim of this project is to understand the consequences of long-term cholestasis or impaired bile excretion/flow on normal liver cells (hepatocytes) and to test whether specific bile acids can cause irreversible damage to hepatocytes leading to their transformation into pre-malignant cells and hepatocellular carcinoma (primary liver cancer). The results from this project will inform new strategies in screening, prevention and treatment of liver cancer in children and adults with cholestasis.
Significance Of Microparticles In The Pathogenesis Of Liver Ischemia Reperfusion Injury
Funder
National Health and Medical Research Council
Funding Amount
$643,958.00
Summary
The overall aim of the project is to investigate the significance of microparticles in liver ischemia reperfusion injury (IRI). IRI causes damage to donor livers stored in preparation for liver transplantation. We postulate that microparticles released from the liver are critical in this form of injury. The expected outcomes are novel insights into liver IRI with the aim of developing new approaches to prevent liver damage during liver surgery, transplantation and shock.
The Role Of MBOAT7 In Hepatic Inflammation: Implications For Therapy
Funder
National Health and Medical Research Council
Funding Amount
$848,340.00
Summary
When a fatty liver progresses to develop inflammation, patients are at-risk of liver-related morbidity and death. Currently, there are no effective therapies. From human studies, we have discovered that a lipid modifying enzyme (MBOAT7) profoundly regulates liver inflammation. In this proposal, we will obtain a detailed understanding of how the activity of this pathway modulates inflammation. We expect to show that MBOAT7 is a novel ‘druggable’ pathway for the treatment of liver inflammation.
P53 And Hepatocyte Proliferation In Chronic Liver Disease
Funder
National Health and Medical Research Council
Funding Amount
$331,360.00
Summary
The aim of this project is understand how loss of control of p53, a tumour suppressor gene, in liver cells causes the transformation of normal liver cell (hepatocyte) to ‘rouge’ pre-cancerous cells in hepatocellular carcinoma (HCC) or primary liver cancer. We will test novel therapies to restore p53 function in liver cells in order to prevent or retard the development of HCC in patients with cirrhosis and those ‘at risk’ of this rapidly increasing fatal cancer in Australia.
MERTK Receptor Tyrosine Kinase: A Novel Therapeutic Target For Liver Fibrosis
Funder
National Health and Medical Research Council
Funding Amount
$870,972.00
Summary
Hepatic fibrosis is the principal cause of liver-related morbidity and mortality, for which there are no effective therapies. Thus, there is an urgent and unmet need to identify new targets to treat liver fibrosis. We have demonstrated for the first time, that liver fibrosis correlates with elevated hepatic expression of MERTK, a receptor tyrosine kinase. This project will explore whether MERTK function can be exploited to target and reverse liver fibrosis
The Role Of The Hepatocyte And EMMPRIN In Liver Injury
Funder
National Health and Medical Research Council
Funding Amount
$607,487.00
Summary
This research plan investigates the role of the hepatocyte, the principal functional cell within the liver in the development of liver disease. Liver injury can result in end-stage scaring known as cirrhosis as well as leading to liver cancer. Our research aims to identify strategies for reversing the fibrotic process and result damage to the liver
Protecting Fatty Livers From Hepatic Ischemia-reperfusion Injury In Liver Surgery And Transplantation
Funder
National Health and Medical Research Council
Funding Amount
$624,960.00
Summary
About one third of the population have a fatty liver, and this greatly increases risks of liver failure after liver surgery or when fatty donor livers are used for transplantation (such organs are currently disposed of). The disease process is called ischemia-reperfusion injury (IRI). The investigators have recently shown that both fibrates and statins provide partial protection against IRI in fatty livers. This research is directed at establish the protective mechanisms, and whether combination ....About one third of the population have a fatty liver, and this greatly increases risks of liver failure after liver surgery or when fatty donor livers are used for transplantation (such organs are currently disposed of). The disease process is called ischemia-reperfusion injury (IRI). The investigators have recently shown that both fibrates and statins provide partial protection against IRI in fatty livers. This research is directed at establish the protective mechanisms, and whether combination drugs are more effective.Read moreRead less
Manganese is an essential trace element for normal health. However in some medical conditions manganese can build up in the brain and cause a Parkinson's like disease called manganism. Experimental evidence suggests that the liver plays an important role in the development of manganism and this project aims to explore the way the liver handles manganese in health and disease. These studies may assist in understanding how manganism develops.
Investigation Of The Beneficial Arm Of The Renin-Angiotensin System (RAS) To Formulate Potential Therapies In Liver Diseases
Funder
National Health and Medical Research Council
Funding Amount
$71,765.00
Summary
Severe liver damage due to chronic hepatitis and other common liver diseases is now a major cause of illness and death in Australia. This project will examine how a hormone system contributes to the development of liver damage in these diseases. We will study whether drugs targeting this system can be used to reduce liver scarring and prevent the development of severe liver damage and its complication.
Does Immunosuppression Affect The Post-transplantation Hepatic Fibrogenic Response?
Funder
National Health and Medical Research Council
Funding Amount
$360,000.00
Summary
Liver transplantation is often the only treatment option for patients who progress to end-stage liver disease after initial treatment has failed. Unfortunately, re-emergence of disease is common and patients often develop fibrosis and cirrhosis (scarring of the liver) in the donor organ. In some cases it has been observed that this scarring often develops rapidly, sometimes in a year or less following transplantation. Re-transplantation is often required. This differs from the usual progression ....Liver transplantation is often the only treatment option for patients who progress to end-stage liver disease after initial treatment has failed. Unfortunately, re-emergence of disease is common and patients often develop fibrosis and cirrhosis (scarring of the liver) in the donor organ. In some cases it has been observed that this scarring often develops rapidly, sometimes in a year or less following transplantation. Re-transplantation is often required. This differs from the usual progression of cirrhosis pre-transplant which often takes years or decades to develop. While essential to prevent rejection of the transplanted organ, immunosuppression is not without side effects. To date, few studies have examined the effect of immunosuppressive agents on the development of hepatic fibrosis and the key fibrosis effector cell type, the hepatic stellate cell. These reports have shown that one of the most commonly used immunosuppressant agents (FK-506) may adversely influence fibrosis progression while rapamycin may prevent fibrosis progression. However little is known regarding the mechanisms through which this occurs. We propose to examine the effect of four different immunosuppressants on fibrosis development both in vitro and in vivo to determine whether scar development or scar breakdown pathways are altered post-immunosuppression. If the factors driving the fibrogenesis in the transplanted organ can be elucidated it may then be possible to develop therapeutic strategies to tackle the problem. This may result in a reduced need for re-transplantation which has obvious benefits to the transplant patient but would also reduce the numbers of donor organs required.Read moreRead less