Periodontal disease is an inflammatory disorder leading to tooth loosening and, if untreated, tooth loss. Once bone destruction has occurred around teeth the treatment outcomes are severely compromised and are mainly focussed towards slowing the process of destruction rather than repairing the damage. Over the last decade, treatment of advanced periodontal disease has focussed on ways in which the damaged tissues may be regenerated. We now have gained considerable insight into the molecular and ....Periodontal disease is an inflammatory disorder leading to tooth loosening and, if untreated, tooth loss. Once bone destruction has occurred around teeth the treatment outcomes are severely compromised and are mainly focussed towards slowing the process of destruction rather than repairing the damage. Over the last decade, treatment of advanced periodontal disease has focussed on ways in which the damaged tissues may be regenerated. We now have gained considerable insight into the molecular and cellular events associated with periodontal regeneration. Despite efforts to induce regeneration through the selective use of growth and differentiation factors it is becoming obvious that the most significant factor in successful clinical outcomes is the recruitment of special cells to the site of damage which have the potential to repair tissue damage. Thus, we intend to engineer different types of periodontal matrices in the laboratory and then transplant these newly formed tissues into sites affected by periodontal disease in an attempt to repair the damage caused by the disease process.Read moreRead less
SIGN Receptors And The Antiinflammatory Activity Of Sialylated IgG Fcs
Funder
National Health and Medical Research Council
Summary
IgG antibodies are a crucial component of the immune system, and significantly contribute to host protection against cancer and infectious diseases. Additionally, therapeutic IgG antibodies have been developed for treatment of cancer and inflammatory diseases. The studies proposed herein will elucidate one important aspect of how IgG antibodies act as anti-inflammatory agents, and may lead to the design of more effective IgG based therapies for the treatment of inflammatory diseases or cancer.
Regulation And Activity Of Fatty Acid Delta-6 Desaturase (D6D)
Funder
National Health and Medical Research Council
Funding Amount
$527,683.00
Summary
Fish and fish oils contain fats known as omega-3 fats. These have health benefits in adult conditions such as rheumatoid arthritis and heart disease, and they are necessary for proper brain and eye development in infants. However, much of the population does not like to eat fish and also, world fish stocks are under stress. Thus, a sustainable alternative source of omega-3 fats needs to be explored. Some vegetable oils such as canola, echium, and flaxseed oils have omega-3 fats. However, these a ....Fish and fish oils contain fats known as omega-3 fats. These have health benefits in adult conditions such as rheumatoid arthritis and heart disease, and they are necessary for proper brain and eye development in infants. However, much of the population does not like to eat fish and also, world fish stocks are under stress. Thus, a sustainable alternative source of omega-3 fats needs to be explored. Some vegetable oils such as canola, echium, and flaxseed oils have omega-3 fats. However, these are not the same as the omega-3s in fish oil. In general, vegetable omega-3s are known as short-chain omega-3s whereas those in fish are long-chain. When the vegetable oil omega-3s are consumed in the diet, the body must convert them to the fish-type, or long-chain, omega-3s in order to gain the health benefits. Currently, human metabolism is poor at doing this conversion. Our studies suggest that the amounts and blends of fats in most diets are well below optimal for conversion to long-chain omega-3s in the body. In particular, our studies show that there may be no point in simply adding more vegetable omega-3 fats to the diet. This project will examine the enzymes that convert the short-chain to the long-chain omega-3 fats. In particular, it will examine how the dietary fats interact with each other in detrimental ways to suppress activity of the conversion enzymes necessary for long-chain omega-3 formation. Evidence for the health benefits of fish-based omega-3 fats is very strong and it is an approach to health that most people can undertake on their own. Our lack of knowledge of the best way to use plant-based omega-3 fats is a large impediment for a more sustainable and broader based use of omega-3 fats. The results from this study will begin to fill in this knowledge gap. The results will be useful across a range of activities that are determinants of the kinds of fat that we eat. These include oil seed breeding, food manufacture, and dietetics.Read moreRead less
Investigating The Action Of Clozapine On The Epidermal Growth Factor System: Implications For Antipsychotic Drug Action
Funder
National Health and Medical Research Council
Funding Amount
$364,535.00
Summary
Current treatments for schizophrenia are ineffective for up to half of sufferers leaving the toxic drug clozapine as the only resort. This project aims to investigate if the unique effectiveness of clozapine is due to a novel action in brain cells that we have identified. The project will delineate this mechanism and from this may lead to the development of a new way of treating schizophrenia and insights into the causes of this disorder.
Molecular Determinants Of Subcellular Localisation And Function Of The Transmembrane 4 Superfamily Protein, PETA-3
Funder
National Health and Medical Research Council
Funding Amount
$322,911.00
Summary
Several years ago we identified the cell membrane protein PETA-3-CD151 based on its ability to cause activation of blood platelets, suggesting a role in thrombosis. More recently we found that the protein is present in a variety of tissues, although its distribution in those tissues is often restricted. It is abundant in a variety of cancer cells, and is present on tissue mast cells that mediate allergic reactions. PETA-3-CD151 forms complexes with molecules (integrins) that are associated with ....Several years ago we identified the cell membrane protein PETA-3-CD151 based on its ability to cause activation of blood platelets, suggesting a role in thrombosis. More recently we found that the protein is present in a variety of tissues, although its distribution in those tissues is often restricted. It is abundant in a variety of cancer cells, and is present on tissue mast cells that mediate allergic reactions. PETA-3-CD151 forms complexes with molecules (integrins) that are associated with cell adhesion and migration, and antibodies to this protein inhibit cell movement. Thus PETA-3-CD151 appears to be involved in cellular interactions that are critical for normal tissue development and function, and may be involved in several disease processes including cancer invasion and metastasis. The molecular basis of PETA-3-CD151 function is not understood and is the focus of this application.Read moreRead less
Inherited Muscle Disorders - Gene Discovery, Pathobiology And Therapy.
Funder
National Health and Medical Research Council
Funding Amount
$1,750,277.00
Summary
The project proposed by Professors Nigel Laing and Kathryn North and Dr Kristen Nowak is based upon the results of their successful identification of disease genes for genetic muscle diseases. The project is divided into three parts. In the first part of the project, the research team will identify further novel disease genes, some of which they are already close to finding. In the second part of the project the team will determine how the mutations they have identified in the disease genes actu ....The project proposed by Professors Nigel Laing and Kathryn North and Dr Kristen Nowak is based upon the results of their successful identification of disease genes for genetic muscle diseases. The project is divided into three parts. In the first part of the project, the research team will identify further novel disease genes, some of which they are already close to finding. In the second part of the project the team will determine how the mutations they have identified in the disease genes actually cause the diseases. The aim of this work is to discover targets that may ultimately lead to new therapies for these muscle diseases. In the third and final part of the project, the team will pursue one possible therapeutic approach, which is based upon the understanding of the diseases the researchers have gained from their previous studies. There are currently no cures for these muscle diseases, though symptoms can be treated. The team will determine whether heart actin can replace muscle actin in skeletal muscle and thus might treat the muscle disease.Read moreRead less
Mechanism Of Flightless I Function In Burn Injury And Scar Formation
Funder
National Health and Medical Research Council
Funding Amount
$545,216.00
Summary
Extensive scarring is a major clinical problem often resulting from burn injuries. We have previously shown that the cytoskeletal protein, Flightless I (FliI), is an important regulator of wound repair. We now plan to investigate whether FliI is also be the mechanistic link between cytoskeletal remodelling and induction of TGF-betas post-wounding leading to scar formation.