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Transcriptional Regulation Of The Complement Receptor 2 Gene (CR2/CD21) During B Cell Lineage Committment
Funder
National Health and Medical Research Council
Funding Amount
$466,500.00
Summary
The complement system is a very important pathway within the human immune system. One of the receptors within this system is complement receptor 2 or CR2. CR2 has not only been shown to be important within the inflammatory response and defence against microbes but is also important in normal generation of a B cell immune response . B cells not only produce antibodies against foreign organisms but in some cases dysfunction of the B cell can bring about autoimmunity by production of antibodies aga ....The complement system is a very important pathway within the human immune system. One of the receptors within this system is complement receptor 2 or CR2. CR2 has not only been shown to be important within the inflammatory response and defence against microbes but is also important in normal generation of a B cell immune response . B cells not only produce antibodies against foreign organisms but in some cases dysfunction of the B cell can bring about autoimmunity by production of antibodies against self tissues and cells . How the CR2 gene turns on expression on different cells within the immune system is complex. The amount of receptor on the surface of antibody producing B cells has important implications to B cell biology. As CR2 expression is turned on at an important point within the antibody producing B cell and the levels of this receptor can influence B cell function, understanding how this gene is regulated is important.Read moreRead less
This program of research is firmly focussed on the basic mechanisms involved in normal functioning of cells and tissues, followed by a step by step process to understand the abnormal or the diseased. The disease states we are investigating involve the blood and blood vessels, and when there is malfunction it may contribute to conditions as diverse as atherosclerosis, thrombosis, inflammation and cancer. The program thus addresses the fundamentals of diseases which are responsible for most deaths ....This program of research is firmly focussed on the basic mechanisms involved in normal functioning of cells and tissues, followed by a step by step process to understand the abnormal or the diseased. The disease states we are investigating involve the blood and blood vessels, and when there is malfunction it may contribute to conditions as diverse as atherosclerosis, thrombosis, inflammation and cancer. The program thus addresses the fundamentals of diseases which are responsible for most deaths in our society. We will use technology which is proven to provide precise information, the molecular and biochemical processes responsible for cell function (or malfunction). However in each individual project there will be a clear path to a clinical use, diagnostic or therapeutic. Indeed in a number of the components of the program there are already potential treatments and diagnostics in development and trial.Read moreRead less
Characterisation Of Notch Asparaginyl Hydroxylation By FIH-1.
Funder
National Health and Medical Research Council
Funding Amount
$307,841.00
Summary
Cells within our body receive numerous signals telling them when to grow, when to turn into another cell type and exactly what type, and even how to respond to situations like low oxygen. These signals and cells response are very important during embryonic development, when these signals cause a single cell to become a complete person, and also in adults. Here in the embryo, and also in adults, stem cells are very important because they can become many different kinds of cells, depending on what ....Cells within our body receive numerous signals telling them when to grow, when to turn into another cell type and exactly what type, and even how to respond to situations like low oxygen. These signals and cells response are very important during embryonic development, when these signals cause a single cell to become a complete person, and also in adults. Here in the embryo, and also in adults, stem cells are very important because they can become many different kinds of cells, depending on what the body needs. When the signals don't work properly, they cause major problems and diseases, from birth defects, to cancer. Notch is an important protein involved in receiving and passing on certain signals, and is found in organisms as diverse as worms and humans. It tells cells, especially stem cells and other similar cells, when and how to change from one type of cell to another. For example, it is very important in the generation of many different types of blood cells from a single precursor cell. Notch has also been implicated in human diseases such as cancer, where signalling goes wrong and cells keep multiplying out of control, and also certain types of heart disease. Another protein, called FIH, is an oxygen sensor that signals to the cell when there is not enough oxygen around. FIH has also been implicated in cancer and heart disease. We have recently found evidence suggesting that FIH can also influence the activity of the Notch proteins. This means that oxygen levels can potentially have an effect on stem cells and other processes controlled by Notch, and may be very important in cancer and other diseases. This project will first confirm the connection between FIH and Notch. There are a number of different Notch proteins, so we will see if this connection works with all of them. It will also try and work out the consequence of this connection is and how important it is. Finally, the likely biological consequences on human diseases, specifically cancer.Read moreRead less
Establishing the role of heterotrimeric G-proteins in plant defence. Agriculture is an important economic activity in Australia that resulting in considerable export revenues. Agricultural losses caused by plant pathogens account for millions of dollars every year and have profound economic and social implications.
The proposed research will explore new approaches to increase plant resistance to pathogens using a previously unkown component of this network: G-proteins and could ultimately reduc ....Establishing the role of heterotrimeric G-proteins in plant defence. Agriculture is an important economic activity in Australia that resulting in considerable export revenues. Agricultural losses caused by plant pathogens account for millions of dollars every year and have profound economic and social implications.
The proposed research will explore new approaches to increase plant resistance to pathogens using a previously unkown component of this network: G-proteins and could ultimately reduce dependency on toxic chemical products.Read moreRead less
The Regulation Of Gene Expression During Adipogenesis
Funder
National Health and Medical Research Council
Funding Amount
$549,446.00
Summary
The body stores energy acquired from ingested food as fat droplets within storage cells termed adipocytes. The amount of fat varies between individuals and may also vary during an individual's life. The variations reflect differences in physiology, diet, and behaviour and have been the focus of intense study. Excessive accumulation of fat is a serious health problem as it is associated with conditions such as heart disease and diabetes. This grant application primarily concerns using a new line ....The body stores energy acquired from ingested food as fat droplets within storage cells termed adipocytes. The amount of fat varies between individuals and may also vary during an individual's life. The variations reflect differences in physiology, diet, and behaviour and have been the focus of intense study. Excessive accumulation of fat is a serious health problem as it is associated with conditions such as heart disease and diabetes. This grant application primarily concerns using a new line of genetically modified mice that have reduced fat. These mice lack a key gene regulatory protein that is implicated in fat accummulation and adipocyte formation. It is expected that a knowledge of the genes regulating the formation and function of fat storage cells will contribute to new strategies for controlling fat formation and will help in the prevention of diseases such as diabetes and heart disease.Read moreRead less
Predicting cell wall mechanics from structure in a materials engineering approach to plant growth. The project fosters a novel, interdisciplinary approach to understanding how the structure of plant cell walls determines their mechanical properties. Such understanding requires combining biological and engineering approaches and will illuminate how plants grow and produce cells and organs with particular shapes. This is scientifically important but is also important for industries depending on sp ....Predicting cell wall mechanics from structure in a materials engineering approach to plant growth. The project fosters a novel, interdisciplinary approach to understanding how the structure of plant cell walls determines their mechanical properties. Such understanding requires combining biological and engineering approaches and will illuminate how plants grow and produce cells and organs with particular shapes. This is scientifically important but is also important for industries depending on specialised cell shapes such as those of cotton and wood fibres. Our work will improve our understanding of how wall structure determines fibre and other cell shapes and give us tools which can be used to understand how final wall structure determines the fibre mechanics on which industrial users depend. Read moreRead less