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Fibrtic lung diseases are a major health burden, and are a leading causes of mortality and morbidity worldwide. These diseases are effectively incurable, and a considerable number eventually require lung transplants. As such these diseases are prime candidates for stem cell therapies to regenerate and repair the lung. However, the lack of knowledge about the precise identity, organisation and regulation of these cells; how to deliver them effectively to the damaged lung; and how to pre-condition ....Fibrtic lung diseases are a major health burden, and are a leading causes of mortality and morbidity worldwide. These diseases are effectively incurable, and a considerable number eventually require lung transplants. As such these diseases are prime candidates for stem cell therapies to regenerate and repair the lung. However, the lack of knowledge about the precise identity, organisation and regulation of these cells; how to deliver them effectively to the damaged lung; and how to pre-condition their site of lodgement to best harness their potential. This project aims to address these issues. We have recently identified a rare population of cells in the adult mouse lung which has a number of characteristics consistent with that of an adult stem cell. We are able to grow these cells in tissue culture, and we have preliminary data suggesting that they can regenerate lung tissue when transplanted. The aim of this project is to precisely identify these cells, develop methods for their isolation and determine their location in the lung. The assays we will develop in this model will then be used to identify stem cells in the bone marrow which have similar properties and which could potentially be used clinically to alleviate lung disease. The project brings together a group of investigators with unique expertise in the isolation and analysis of adult stem cells, and in clinical and experimental respiratory medicine to develop preclinical models in the mouse which are prerequisite for the developement and implementation of step cell based therapies for lung disease in humans.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE170100226
Funder
Australian Research Council
Funding Amount
$372,000.00
Summary
How innate lymphoid cells regulate mammalian lung development. This project aims to determine the ability of a subset of lung resident immune cells to promote normal lung development through the regulation of stem cells. The lung is constantly exposed to countless environmental challenges including microbes. Mammals’ local immune systems protect the lung from these challenges. This is particularly important in early-life when the lung is still developing. However, impaired lung development affec ....How innate lymphoid cells regulate mammalian lung development. This project aims to determine the ability of a subset of lung resident immune cells to promote normal lung development through the regulation of stem cells. The lung is constantly exposed to countless environmental challenges including microbes. Mammals’ local immune systems protect the lung from these challenges. This is particularly important in early-life when the lung is still developing. However, impaired lung development affects humans and livestock, costing >$3 billion p.a. The intended outcome is to identify basic biological processes involved in normal mammalian lung development, which may lead to strategies to prevent chronic lung diseases in humans and animals.Read moreRead less
The foot soldiers of the immune system, the white blood cells, constantly march through the body seeking out invaders, but kept in check by the barrier of endothelial cells that lines the inside of blood vessels. When infection occurs, molecular messages are transmitted amongst the white cells and between white cells and edothelium, to activate the immune cells to pass out of the blood vessels and mount a defence. Unfortunatley, the activation system sometimes goes awry, resulting in inflammator ....The foot soldiers of the immune system, the white blood cells, constantly march through the body seeking out invaders, but kept in check by the barrier of endothelial cells that lines the inside of blood vessels. When infection occurs, molecular messages are transmitted amongst the white cells and between white cells and edothelium, to activate the immune cells to pass out of the blood vessels and mount a defence. Unfortunatley, the activation system sometimes goes awry, resulting in inflammatory or allergic disease, such as arthritis or asthma. This team of researchers from the Hanson Institute in Adelaide, combining expertise in molecular and cell biology, protein chemestry, structual biology and animal models, has been working together for over 10 years, investigating the molecular mechanisms involved in controlling the formation and activities of blood vessels and white blood cells. This program seeks to further that understanding, and to develop drugs that have the potential of ameliorating the inflammatory condition.Read moreRead less
Elucidating the roles of steroid receptors in mitochondria. This project aims to elucidate the roles of newly discovered steroid receptors in the functions of mitochondria. The project will characterise their impact on cellular respiration, oxidative stress, and the induction of inflammation. By defining these processes in the healthy state and in response to common environmental challenges of infection and smoke exposure, the project will characterise the fundamental biology of entirely new pro ....Elucidating the roles of steroid receptors in mitochondria. This project aims to elucidate the roles of newly discovered steroid receptors in the functions of mitochondria. The project will characterise their impact on cellular respiration, oxidative stress, and the induction of inflammation. By defining these processes in the healthy state and in response to common environmental challenges of infection and smoke exposure, the project will characterise the fundamental biology of entirely new processes of how normal body hormones and administered steroids may function. This may eventually lead to new and more effective ways to control inflammation that will have significant benefits to mammalian health and improve health care and agriculture outcomes.Read moreRead less
Assembly Of Mitochondrial Respiratory Chain Complexes And Defects Associated With Disease
Funder
National Health and Medical Research Council
Funding Amount
$464,610.00
Summary
A group of protein assemblies termed respiratory complexes are found in the inner membrane of mitochondria in our cells and are responsible for producing most of our energy. These complexes consist of many different protein subunits and are built by the help of numerous known and unknown assembly factors. For example, assembly of Complex I of the respiratory chain requires 39 different proteins that are made outside mitochondria and are then transported inside to be somehow joined together with ....A group of protein assemblies termed respiratory complexes are found in the inner membrane of mitochondria in our cells and are responsible for producing most of our energy. These complexes consist of many different protein subunits and are built by the help of numerous known and unknown assembly factors. For example, assembly of Complex I of the respiratory chain requires 39 different proteins that are made outside mitochondria and are then transported inside to be somehow joined together with the 7 other subunits that are made by mitochondria. This is clearly a complicated procedure and we have little information on how its assembly is achieved. We do know however that mistakes in the assembly of these complexes (particularly Complex I) do happen. In Australia, about 50 children born each year have inherited disorders of mitochondrial energy generation. The most severe disorders cause infant death, while others present later causing a range of degenerative diseases, particularly affecting brain, muscle and heart. Defects in the respiratory chain have also been implicated in Parkinson's disease, Alzheimer's disease, type-2 diabetes and in cell death. In order to understand how respiratory complex defects cause disease, we need to understand more about how these complexes are built. The aim of this proposal is to investigate how Complex I is assembled, how it interacts with other respiratory complexes, and to identify and characterise proteins that aid in its assembly. We will also analyse assembly defects in cells from patients with suspected respiratory complex deficiencies. This work will aid in our understanding of not only how protein complexes are built, but how defects in their assembly can cause disease. This will be informative to families of affected individuals and may aid in future diagnosis and prevention of diseases where defects in mitochondria are implicated.Read moreRead less
Novel human tryptases: their potential role in inflammatory diseases of the young and old. We have discovered a number of novel human tryptases, and while other members of this enzyme family have been implicated in the development of inflammatory diseases (including rheumatoid arthritis), little is known about these new molecules. We aim to characterise these new enzymes by determining what part of the body they are produced in, whether they are associated with specific inflammatory diseases, an ....Novel human tryptases: their potential role in inflammatory diseases of the young and old. We have discovered a number of novel human tryptases, and while other members of this enzyme family have been implicated in the development of inflammatory diseases (including rheumatoid arthritis), little is known about these new molecules. We aim to characterise these new enzymes by determining what part of the body they are produced in, whether they are associated with specific inflammatory diseases, and what target molecules they act on. A better understanding of these factors will increase the chances of finding cures and developing better treatments for important inflammatory diseases of the ageing population.Read moreRead less
Development and Characterization of Chemokine Receptor Mimics. The proposed research will provide important fundamental insights into the molecular events underlying inflammatory diseases and cancer metastasis. The innovative nature of the research and the significance of the results will enhance Australia's international research standing. Moreover, the insights gained from this work will contribute to the development of therapies that will ultimately enhance the quality of life for Australia ....Development and Characterization of Chemokine Receptor Mimics. The proposed research will provide important fundamental insights into the molecular events underlying inflammatory diseases and cancer metastasis. The innovative nature of the research and the significance of the results will enhance Australia's international research standing. Moreover, the insights gained from this work will contribute to the development of therapies that will ultimately enhance the quality of life for Australians.Read moreRead less
Understanding how Plasmepsin V directs export of malaria virulence proteins to the host cell. This project aims to characterise how malaria parasites survive and manipulate infected host cells by exporting virulence proteins. This project may identify essential proteins that allow the malaria parasite to transform the host in order to survive, replicate and hide from the immune system and provide new data on protein export in liver-stages.
A proteomic approach to the identification of novel targets for allergy treatment. Eosinophils are involved in parasite immunity and in the pathology of allergic diseases including asthma. Eosinophil recruitment and activation is critical to their functional activity, but the relevant molecular mechanisms have not been fully elucidated. In the present proposal, a unique resource of eosinophils, at different stages of recruitment and activation, will be used for detailed proteomic analysis to ide ....A proteomic approach to the identification of novel targets for allergy treatment. Eosinophils are involved in parasite immunity and in the pathology of allergic diseases including asthma. Eosinophil recruitment and activation is critical to their functional activity, but the relevant molecular mechanisms have not been fully elucidated. In the present proposal, a unique resource of eosinophils, at different stages of recruitment and activation, will be used for detailed proteomic analysis to identify molecules and molecular pathways involved in eosinophil migration and activation. These studies may lead to novel anti-inflammatory strategies and more targeted drug treatments that will generate significant intellectual property and be of enormous benefit to allergy patients worldwide.Read moreRead less