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Determination of the mechanisms of immune system regulation of inflammation by the human protein, chaperonin 10. The aim of this project is to determine the mechanisms by which a human protein, chaperonin 10 (Cpn10), regulates the immune system and suppresses inflammation. When cells of the human immune system are challenged with lipopolysaccharide (LPS) (a product of bacterial infection), the pro-inflammatory cytokine TNF is released. Cpn10 has been shown to suppress production of TNF on chall ....Determination of the mechanisms of immune system regulation of inflammation by the human protein, chaperonin 10. The aim of this project is to determine the mechanisms by which a human protein, chaperonin 10 (Cpn10), regulates the immune system and suppresses inflammation. When cells of the human immune system are challenged with lipopolysaccharide (LPS) (a product of bacterial infection), the pro-inflammatory cytokine TNF is released. Cpn10 has been shown to suppress production of TNF on challenge of cells with LPS, while increasing the levels of the anti-inflammatory cytokine IL-10. Investigating the role of Cpn10 in modulating inflammation will contribute to the understanding and treatment of diseases associated with inflammation, including multiple sclerosis and rheumatoid arthritis.Read moreRead less
Antimicrobial peptides and immunological protection in a developing mammal. This project offers the opportunity to deliver both economic and scientific benefits, both in the isolation of novel antimicrobials and in positioning Australia's native fauna as important, unique biomedical research models. Antimicrobial peptides offer a solution to the current pressing problem of microbial resistance to antibiotics. This project seeks to isolate such compounds from a previously uninvestigated source, u ....Antimicrobial peptides and immunological protection in a developing mammal. This project offers the opportunity to deliver both economic and scientific benefits, both in the isolation of novel antimicrobials and in positioning Australia's native fauna as important, unique biomedical research models. Antimicrobial peptides offer a solution to the current pressing problem of microbial resistance to antibiotics. This project seeks to isolate such compounds from a previously uninvestigated source, unique to Australia. This project will provide a new perspective on the role of innate protection in a developing mammal, with possible human applications.Read moreRead less
The molecular basis of macropinocytosis in mammalian cells: the composition of endosome proteins and their function. Individual cells communicate with their immediate environment by the process of macropinocytosis, a process that involves the exchange of materials between the extracellular space and a specialised region of the cell termed endosomes. It is an important process in mammalian cells being essential to the correct functioning of many tissues. This project will advance understanding of ....The molecular basis of macropinocytosis in mammalian cells: the composition of endosome proteins and their function. Individual cells communicate with their immediate environment by the process of macropinocytosis, a process that involves the exchange of materials between the extracellular space and a specialised region of the cell termed endosomes. It is an important process in mammalian cells being essential to the correct functioning of many tissues. This project will advance understanding of macropinocytosis at a molecular level. The project is relevant to understanding the functioning of normal cells and the means by which some pathogens can enter cells and also understanding processes involved in tumour progression and metastasis.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0882913
Funder
Australian Research Council
Funding Amount
$300,000.00
Summary
Mass spectrometry facility for the quantitation and analysis of post-translationally modified peptides. This proposal will address a gap in our mass spectrometry capabilities and aid in our understanding of the cellular immune response and investigate the chemical diversity of the targets of immunity. This proposal has broad implications in the basic immunology of antigen presentation, in biomarker discovery as well as in the design of new vaccines in infectious disease and cancer and the develo ....Mass spectrometry facility for the quantitation and analysis of post-translationally modified peptides. This proposal will address a gap in our mass spectrometry capabilities and aid in our understanding of the cellular immune response and investigate the chemical diversity of the targets of immunity. This proposal has broad implications in the basic immunology of antigen presentation, in biomarker discovery as well as in the design of new vaccines in infectious disease and cancer and the development of therapies for autoimmune diseases. In addition to these key scientific outcomes this project will also facilitate the training of several new personnel in a skill area for which there is a critical shortage (mass spectrometry) and promote cross-disciplinary skills (immunology, biochemistry, proteomics).Read moreRead less
Structure-based inhibitor design of VAP-1/SSAO for the treatment of respiratory dirsorders and other major inflammatory diseases. Inflammatory diseases, such as asthma, rheumatoid arthritis and multiple sclerosis, are widespread and often poorly treated in Australia and elsewhere. Inhibitors of the recently studied VAP-1/SSAO protein are predicted to effectively treat the inflammation symptoms of one or more of these diseases. A structure-based approach to discover these new medicines should pro ....Structure-based inhibitor design of VAP-1/SSAO for the treatment of respiratory dirsorders and other major inflammatory diseases. Inflammatory diseases, such as asthma, rheumatoid arthritis and multiple sclerosis, are widespread and often poorly treated in Australia and elsewhere. Inhibitors of the recently studied VAP-1/SSAO protein are predicted to effectively treat the inflammation symptoms of one or more of these diseases. A structure-based approach to discover these new medicines should provide a means to identify patentable compounds, with high potency, efficacy and safety. If this approach is successful, an Australian pharmaceutical company will be one of the first to the market with this new medicine to treat these chronic diseases.Read moreRead less
Membrane excitability and cellular calcium regulation in the peripheral nervous system under different (patho)-physiological conditions and in inflammatory disease. Studies of cytokine action on neurons and muscle give new insights into functional responses of the nervous system to systemic inflammation and sepsis. In some countries, sepsis is the third most frequent cause of death following heart attack. Elucidating the pathomechanisms allows to develop therapeutic strategies. Electrophysiology ....Membrane excitability and cellular calcium regulation in the peripheral nervous system under different (patho)-physiological conditions and in inflammatory disease. Studies of cytokine action on neurons and muscle give new insights into functional responses of the nervous system to systemic inflammation and sepsis. In some countries, sepsis is the third most frequent cause of death following heart attack. Elucidating the pathomechanisms allows to develop therapeutic strategies. Electrophysiology, Ca2+ regulation and optical membrane potentiometry allow us to monitor early changes in disease on a (sub)cellular level. Experiments on Ca2+ regulation and ion channel function in muscle with different cholesterol membrane contents will help to understand pathomechanisms in high cholesterol diseases, e.g. obesity, on the membrane level long before cardiovascular effects become prominent.Read moreRead less
Investigation of a Phagocytic Synapse in the Uptake of Apoptotic Cells. Rapid clearance of cells that die by apoptosis is crucial for embryonic development, tissue turnover, and after inflammatory events. Specialised phagocytes engulf the apoptotic cell corpses in a way that minimises inflammation and prevents autoimmunity. Genetic studies have identified the key evolutionary receptors involved, but the molecular basis of this phagocytosis is still poorly understood. We have developed, and seek ....Investigation of a Phagocytic Synapse in the Uptake of Apoptotic Cells. Rapid clearance of cells that die by apoptosis is crucial for embryonic development, tissue turnover, and after inflammatory events. Specialised phagocytes engulf the apoptotic cell corpses in a way that minimises inflammation and prevents autoimmunity. Genetic studies have identified the key evolutionary receptors involved, but the molecular basis of this phagocytosis is still poorly understood. We have developed, and seek to establish, an integrated model that incorporates new findings to explain how the distinctive functions of specialised receptors can be orchestrated to achieve this function. A successful outcome to the project will provide new knowledge of value to human health.Read moreRead less
A structural investigation into the peptide-loading complex molecular machine. The proposed research program, using laboratory-based and synchrotron-based radiation, will provide fundamental insight into a process central to immunity, namely antigen presentation. Investigating the process of Antigen presentation is important, as it will further our understanding how a cell is "ear-marked" for being infected by viruses or bacteria. Such knowledge will increase Australia's international research ....A structural investigation into the peptide-loading complex molecular machine. The proposed research program, using laboratory-based and synchrotron-based radiation, will provide fundamental insight into a process central to immunity, namely antigen presentation. Investigating the process of Antigen presentation is important, as it will further our understanding how a cell is "ear-marked" for being infected by viruses or bacteria. Such knowledge will increase Australia's international research standing.Read moreRead less
An X-ray crystallographic investigation into co-receptors on T-lymphocytes. T lymphocytes are an indispensable cellular component of the immune system. The normal process of T cell selection in the thymus, and the ability of mature T cells to respond to foreign antigens are governed by receptor recognition and co-receptor mediated events. The co-receptors encompass a wide spectrum of structurally diverse proteins that are involved in adhesion, co-ligation and signal transduction. This proposa ....An X-ray crystallographic investigation into co-receptors on T-lymphocytes. T lymphocytes are an indispensable cellular component of the immune system. The normal process of T cell selection in the thymus, and the ability of mature T cells to respond to foreign antigens are governed by receptor recognition and co-receptor mediated events. The co-receptors encompass a wide spectrum of structurally diverse proteins that are involved in adhesion, co-ligation and signal transduction. This proposal aims to investigate, using X-ray crystallography as the primary research tool, co- receptors located on T-lymphocytes. This work will gain fundamental insights into co-receptor function.Read moreRead less
Lipid raft and cyotoskeleton organization: How membrane domains give cells direction. For a large number of cells in our body it is imperative that they are able to orientate themselves relative to their environment, sense direction and translate incoming signals. To do so it is hypothesised that lipids on the cell surface are redistributed to form specialized domains. An asymmetric distribution of membrane domains can provide cells with a front and rear end and can further concentrate and co-or ....Lipid raft and cyotoskeleton organization: How membrane domains give cells direction. For a large number of cells in our body it is imperative that they are able to orientate themselves relative to their environment, sense direction and translate incoming signals. To do so it is hypothesised that lipids on the cell surface are redistributed to form specialized domains. An asymmetric distribution of membrane domains can provide cells with a front and rear end and can further concentrate and co-ordinate signalling molecules to a specific site. The project will determine the role of lipid domain in stabilizing cell shape and their remodelling during cell migration, the digestion of foreign particles and the formation of cell-cell contacts.Read moreRead less