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Soluble Inhibitors Of Influenza Virus In The Airway Fluids Of Mice, Ferrets And Humans.
Funder
National Health and Medical Research Council
Funding Amount
$404,803.00
Summary
This study will characterize the ability of soluble proteins in airway secretions to recognize and destroy influenza viruses. As many of our insights regarding influenza pathogenesis are derived from studies in animal models, we will characterize the importance of proteins in airway fluids from mice and ferrets, as well as from humans. These findings will be of particular importance when assessing the relevance of particular animal models to understanding human disease.
Inhibition Of IFN-?/? By Human Metapneumovirus And The Induction Of Inflammation
Funder
National Health and Medical Research Council
Funding Amount
$605,251.00
Summary
The newly isolated human metapneumovirus (hMPV) causes significant respiratory illness in infants, young children and the elderly. The virus can persist long-term and may predispose individuals to chronic lung disease. This proposal aims to determine the mechanisms by which hMPV infection causes respiratory disease, with a view to improving treatments and preventing disease.
Mechanisms Regulating Establishment Of Persistent Herpesvirus Infection
Funder
National Health and Medical Research Council
Funding Amount
$511,446.00
Summary
Herpesviruses are a major cause of disease worldwide and are amongst the most successful human pathogens, with some viruses infecting more than 80% of the world's population. This group of viruses persist and reactivate in hosts and induce immunosuppression.The control of herpesviruses infections thus represents an important clinical goal. Understanding the mechanisms involved in the induction of viral persistence and immunosuppression is a crucial step towards developing better therapies.
Oleoyl-ACP-hydrolase As An Early Predictive Biomarker For Severe And Fatal Influenza
Funder
National Health and Medical Research Council
Funding Amount
$866,807.00
Summary
Millions are hospitalized with severe influenza disease and ~500K die annually but the underlying mechanisms that drive disease are still not fully understood. We have identified a key role for an enzyme involved in fatty acid metabolism, which is profoundly elevated in patients who succumb to influenza and is thus a predictor for fatal outcomes. This research aims to investigate how this enzyme affects infection and impairs immune responses to drive severe respiratory viral disease.
In the asthmatic lung structural changes or remodelling occur, which are thought to contribute to the abnormal functioning of the airways. These remodelling events which occur in the asthmatic airway include increased deposition of proteins which form the scaffolding of the airways (the extracellular matrix ECM proteins), and an increased mass of bronchial smooth muscle cells. Many of these critical structural changes are not reversed or prevented with current asthma therapy. Remodelling is an i ....In the asthmatic lung structural changes or remodelling occur, which are thought to contribute to the abnormal functioning of the airways. These remodelling events which occur in the asthmatic airway include increased deposition of proteins which form the scaffolding of the airways (the extracellular matrix ECM proteins), and an increased mass of bronchial smooth muscle cells. Many of these critical structural changes are not reversed or prevented with current asthma therapy. Remodelling is an important process in both the development and progression of asthma. The reason why remodelling occurs in the lungs of people with asthma is not known. It is thought that persistent inflammation drives the remodelling process; however remodelling can perpetuate inflammation, thereby creating a cyclic series of events. Furthermore we have shown that cells from non-asthmatic volunteers which are grown on asthmatic ECM change to become more like cells from asthmatic subjects. Viruses which infect the lungs may play a role in the development of asthma, and in the increased remodelling which is observed. Many common respiratory viruses are capable of infecting lung cells, eg epithelial cells, which evokes an inflammatory response. I will investigate if viral infection can alter the remodelling process, using lung cells isolated from asthmatic and non-asthmatic volunteers. Furthermore, I will assess if current and novel treatments are effective in reducing the remodelling process. We have preliminary evidence that infection of lung epithelial cells with rhinovirus (the common cold virus) alters the amount of ECM deposited by these cells. I hypothesise that this process will be increased in cells from volunteers with asthma compared to non-asthma. As current therapeutics are unlikely to be able to reverse these remodelling events these experiments will enable the development of new therapeutics which can target this important aspect of airway disease.Read moreRead less
Nuclear Transport In Health And Disease; Towards Therapeutics
Funder
National Health and Medical Research Council
Funding Amount
$851,980.00
Summary
This research fellowship will enable new therapeutic approaches to viral disease and cancer that target the transport process. I have already licenced an inhibitory molecule for Dengue virus which is progressing towards the clinic. I will now extend my research into a vibrant translational program of developing anti-viral (HIV, Respiratory Syncytical Virus, VEEV) as well as anti-cancer agents that will represent realistic therapeutic options in the near future.
Mechanism/s Of Disease Caused By Respiratory Viral Infections
Funder
National Health and Medical Research Council
Funding Amount
$479,517.00
Summary
A newly discovered respiratory virus, human metapneumovirus (HMPV), causes clinical disease that is very similar to human respiratory syncytial virus (RSV) and co-circulates with RSV. Human RSV is a major cause of morbidity and life-threatening respiratory tract disease in infants and young children worldwide, and is recognised as an important respiratory pathogen in elderly adults and immune compromised patients. The recent isolation of HMPV from children hospitalised with respiratory tract ill ....A newly discovered respiratory virus, human metapneumovirus (HMPV), causes clinical disease that is very similar to human respiratory syncytial virus (RSV) and co-circulates with RSV. Human RSV is a major cause of morbidity and life-threatening respiratory tract disease in infants and young children worldwide, and is recognised as an important respiratory pathogen in elderly adults and immune compromised patients. The recent isolation of HMPV from children hospitalised with respiratory tract illness similar to RSV, but with an unknown etiology, suggests that HMPV may mediate similar clinical pathology. Nothing is currently known about the immune response to HMPV, or the association of these responses with lung disease. The objectives of this proposal are to elucidate the mechanisms of immunity and disease pathogenesis associated with human metapneumovirus (HMPV) and to investigate the use of a novel vaccine to protect against HMPV infection. Once this data is obtained, the study will provide the foundation for further research in the development of vaccines or therapeutic protocols to treat HMPV. It will also provide valuable information for understanding the disease in humans. Also,it is likely that HMPV, like hRSV, may prove to be an agent associated with long-term decreased pulmonary function and airflow limitation perhaps developing to asthma.Read moreRead less
Burden Of Respiratory Infection In The First 2 Years Of Life: A Birth Cohort Study Of Emerging Respiratory Pathogens.
Funder
National Health and Medical Research Council
Funding Amount
$1,168,963.00
Summary
Respiratory illnesses are extremely common, but there is little information about patterns of infection in the community using modern diagnostic tests. Children have the highest rates of infection and transmit to all other age groups. We intend to recruit 138 newborns to monitor respiratory symptoms and collect specimens for testing in the first two years of life. This will allow us to document illnesses due to known and newly identified respiratory pathogens.
RNAi Therapeutic Intervention Of Human Viral Respiratory Disease
Funder
National Health and Medical Research Council
Funding Amount
$584,117.00
Summary
Human metapneumovirus (HMPV), causes clinical disease that is very similar to human respiratory syncytial virus (RSV) and co-circulates with RSV. HMPV is emerging as a major cause of morbidity and life-threatening respiratory tract disease in infants, young children and the elderly worldwide. No treatment is currently available. The objectives of this proposal are to develop novel antiviral drugs that silence the expression of viral genes and to examine protection against the disease.