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Human CD4+ T-cell Epitope-based Therapeutic For Peanut Allergy
Funder
National Health and Medical Research Council
Funding Amount
$403,121.00
Summary
Peanut allergy affects ~2% of the population and peanuts are the major cause of fatal food-induced anaphylaxis. Peanut allergy usually appears in infancy and persists indefinitely. At present, unlike grass pollen allergy, there is no preventative treatment. Using blood cells from peanut-allergic patients, we will identify the components of major peanut allergens to use in _allergy shots� to develop tolerance on peanut exposure without risking anaphylaxis.
The Significance Of Aeroallergens In Eosinophilic Esophagitis
Funder
National Health and Medical Research Council
Funding Amount
$117,331.00
Summary
Eosinophilic esophagitis is an allergic condition that causes difficulty swallowing food and chest discomfort.Current diagnostic methods are inaccurate, and treatments are not curative. This project aims to clarify the role of promising new diagnostic techniques and to delineate the significance of aeroallergens (e.g. pollens) with a view to improving the treatment of eosinophilc esophagitis in the future. It is possible that simply avoiding pollens or treating hayfever in the future may be all ....Eosinophilic esophagitis is an allergic condition that causes difficulty swallowing food and chest discomfort.Current diagnostic methods are inaccurate, and treatments are not curative. This project aims to clarify the role of promising new diagnostic techniques and to delineate the significance of aeroallergens (e.g. pollens) with a view to improving the treatment of eosinophilc esophagitis in the future. It is possible that simply avoiding pollens or treating hayfever in the future may be all that is required to manage this condition.Read moreRead less
Mechanisms Of Nanoparticle-mediated Inhibition Of Asthma
Funder
National Health and Medical Research Council
Funding Amount
$637,921.00
Summary
Ultrafine pollution particles may promote asthma, and there is concern that man-made 'nanoparticles' have a similar effect. Surprisingly, we found that inert toxin-free nanoparticles inhibit asthma. We propose nanoparticles do this by leaving a unique �imprint� in the lung. We will explore how this imprint modifies lung inflammatory and immune regulatory cell function, and investigate particles made from advanced biodegradable polymers as potential therapeutics for inflammatory lung diseases suc ....Ultrafine pollution particles may promote asthma, and there is concern that man-made 'nanoparticles' have a similar effect. Surprisingly, we found that inert toxin-free nanoparticles inhibit asthma. We propose nanoparticles do this by leaving a unique �imprint� in the lung. We will explore how this imprint modifies lung inflammatory and immune regulatory cell function, and investigate particles made from advanced biodegradable polymers as potential therapeutics for inflammatory lung diseases such as asthma.Read moreRead less
Australia has one of the highest asthma rates in the world. In this project we will study how natural regulatory T cells suppress asthma in a mouse model. We will determine where and when interactions between regulatory T cells and allergic T cells occur, and define the mechanisms used by regulatory cells to mediate their suppressive effects. Our findings will aid in understanding why asthma develops and how it may be controlled by the immune system itself.
Molecular Characterisation Of TRAIL-regulated Signal Transduction Pathways And Their Role In The Development, Persistence, And Exacerbation Of Allergic Airways Disease
Funder
National Health and Medical Research Council
Funding Amount
$637,035.00
Summary
Molecules that promote the development, persistence, and exacerbation of asthma are only poorly defined. We have discovered a novel signalling pathway that is activated in the airway wall during asthma. Blocking a molecule that activates this pathway ameliorated asthma in mice. We now want to identify all the important components of this pathway and therapeutically modulate them to prevent the development, persistence, and exacerbation of asthma.
THE INTERFACE BETWEEN INNATE AND ADAPTIVE IMMUNITY
Funder
National Health and Medical Research Council
Funding Amount
$4,905,420.00
Summary
Allergic disorders including asthma are amongst the most prevalent diseases in Australia afflicting up to 25% of the population and costing the Australian Government in excess of $600 million annually. This program aims to understand the molecular and cellular mechanisms controlling airway inflammation, focusing on the cross-talk between scavenger cells at airway surfaces and circulating cells of the immune system. These studies will combine sophisticated mouse models of airway inflammation in t ....Allergic disorders including asthma are amongst the most prevalent diseases in Australia afflicting up to 25% of the population and costing the Australian Government in excess of $600 million annually. This program aims to understand the molecular and cellular mechanisms controlling airway inflammation, focusing on the cross-talk between scavenger cells at airway surfaces and circulating cells of the immune system. These studies will combine sophisticated mouse models of airway inflammation in the laboratory with clinical investigation and analysis of human tissue. Understanding these processes will translate into better treatments for patients suffering from life-threatening allergy and asthma.Read moreRead less
Regulatory Roles Of Mast Cells In Cutaneous Dermatitis In Vivo
Funder
National Health and Medical Research Council
Funding Amount
$586,965.00
Summary
Allergic conditions that can affect the skin, such as contact dermatitis or eczema are common amongst Australians. Although not life threatening, these common skin conditions can cause considerable physical diability and be expensive to treat. The major focus of our research is to define how dermal mast cells can be modulated to help limit the tissue changes and damage associated with these skin conditions, and ultimately develop improved treatments in the future.
Effect Of A Four-food Elimination Diet In Children With Eosinophilic Oesophagitis – A Multi-centre, Randomised Controlled Trial And Investigation Of Disease Mechanisms
Funder
National Health and Medical Research Council
Funding Amount
$538,792.00
Summary
Eosinophilic oesophagitis (EO) is a recently recognised form of allergic inflammation in the oesophagus. EO is increasingly common in childhood and often linked to food allergy. Its treatment in children mainly relies on complex elimination diets or a liquid elemental formula which may require tube feeding due to poor taste. This Australian multi-centre trial will assess the effects of a four-food elimination diet in children with EO and will investigate novel disease mechanisms.
Cellular And Molecular Pathways Regulating Airway Mucosal Dendritic Cells During Onset Of Allergic Airways Inflammation
Funder
National Health and Medical Research Council
Funding Amount
$491,065.00
Summary
Allergic airways inflammation (AAI), which leads to debilitating disease such as allergic asthma, is a condition medaited by the abnormal activity of the immune system towards essentially harmless inhlaed allergens. Two special cell types of the immmune system that are important in controlloing the onset and persistence of AAI are known as dendritic cells (DC) and T helper type 2 cells (Th2 cells). DC are located in all parts of the respiratory tract and are important in providing control signal ....Allergic airways inflammation (AAI), which leads to debilitating disease such as allergic asthma, is a condition medaited by the abnormal activity of the immune system towards essentially harmless inhlaed allergens. Two special cell types of the immmune system that are important in controlloing the onset and persistence of AAI are known as dendritic cells (DC) and T helper type 2 cells (Th2 cells). DC are located in all parts of the respiratory tract and are important in providing control signals to Th2 cells to become switched on and start to react to an inhaled allergen. Th2 cells then generate a variety of signals that initiate an cascade of immune responses towards the allergen that ultimately can lead to AAI and asthma if left unchecked, however this process remians relatively poorly understood. This project aims to examine how DC and Th2 interact, and at what level DC activity can be regulated so that unchecked Th2 immunity to harmless inhaled allergens can be controlled. The hope is to be able to identify new cellular and molecular pathways that can eventually become the target for new generations of preventative and therapeutic drugs.Read moreRead less
Inhibition Of Allergic Airway Inflammation By Nanoparticles
Funder
National Health and Medical Research Council
Funding Amount
$540,075.00
Summary
Inhaled air pollution particulate matter causes asthma exacerbations, with 'ultrafine' nanoparticles thought to play a major role. Unexpectedly, we recently found that, by contrast, administration of inert ultrafine nanoparticles prevents allergic airway inflammation. We will identify the key particle physical and chemical properties associated with this novel type of disease inhibition, study particle effects in clinically-relevant disease models and identify mechanisms of action.