A Study Of The Function Of Neuronal Apoptosis Inhibitory Proteins (NAIP) In Innate Immunity.
Funder
National Health and Medical Research Council
Funding Amount
$242,696.00
Summary
The innate immune system is the first line of defence against infection and cancer. Regulation of the immune system is extremely important as too little response can lead to severe infections, whilst too much response can lead to chronic inflammatory disease. This project will examine the role of �neuronal apoptosis inhibitory protein� in the immune system, which should provide information on regulation of innate immunity, as well as provide insight to neurodegenerative diseases and cancer.
Understanding The Role Of MAIT Cells In Health And Disease
Funder
National Health and Medical Research Council
Funding Amount
$547,593.00
Summary
A specialised set of T lymphocytes called Mucosal Associated Invariant T (MAIT) cells protect us from bacteria and yeast at mucosal sites where the body's immune defences are most easily breached, e.g. gut, oral cavity, airways & reproductive tract. This study investigates the role of MAIT cells in health and in diseases like inflammatory bowel disease, peptic ulceration, periodontitis and tuberculosis. Controlling MAIT cells could help in treating these conditions.
PB1-F2 Is Critical To Influenza A Virus Pathogenicity Through Activation Of The Inflammasome
Funder
National Health and Medical Research Council
Funding Amount
$663,919.00
Summary
Fatal Influenza A virus infections are excessive inflammation. We identified the IAV protein PB1-F2 as critical in driving excessive inflammation via activating the host inflammasome complex. Our study evaluates PB1-F2-mediated inflammation contribution to inflammatory responses. Identifying PB1-F2 in emerging IAV strains is invaluable in aiding health policy makers to quickly assess fatal IAV pandemics. Our research will potentially identify treatment targets towards reducing this inflammation
Mammals have evolved an array of mechanisms to sense microbes. These immune sentinels must distinguish self from non-self to activate an immune response. The initiation, amplification and quenching of an immune response is carefully orchestrated to eliminate invading pathogens while minimising collateral damage to host tissues. This research focuses on proteins that prevent inflammatory diseases such as cardiovascular disease, hepatitis, inflammatory bowel disease and skin diseases.
The Inflammasome In Host Defence And Autoinflammation
Funder
National Health and Medical Research Council
Funding Amount
$408,388.00
Summary
Inflammation is one of the bodies first responses to infection. The inflammasome is a protein complex that activates pro-inflammatory cytokines as part of this process. We are investigating pathogens that activate a specific inflammasome complex, and also an inflammatory disease it may cause when activated accidentally, in the absence of infection. We are also investigating pathways that keep this inflammation in check, and how pathogens might hijack these anti-inflammatory pathways to promote i ....Inflammation is one of the bodies first responses to infection. The inflammasome is a protein complex that activates pro-inflammatory cytokines as part of this process. We are investigating pathogens that activate a specific inflammasome complex, and also an inflammatory disease it may cause when activated accidentally, in the absence of infection. We are also investigating pathways that keep this inflammation in check, and how pathogens might hijack these anti-inflammatory pathways to promote infection.Read moreRead less
There are two arms to the immune system, one that learns and adapts, which can cause autoimmune disease, and another that is immediate and innate, and can cause autoinflammatory disease. This proposal continues our work in the characterization of rare genetic autoinflammatory disesaes and extrapolates these studies to more common chronic inflammatory diseases. This stands to improve current diagnosis and treatment, and elucidate future drug targets that could be targeted clinically.
Il-18 helps to prevent obesity and type 2 diabetes, however the process by which this cytokine is activated to prevent obesity is not known. We have now found the pathway that drives to this process. This project will seek to extend our observations to show how this can be targeted therapeutically to treat obesity and type 2 diabetes.
Regulation Of Toxoplasma By The NLRP1 Inflammasome
Funder
National Health and Medical Research Council
Funding Amount
$623,070.00
Summary
Toxoplasmosa is an endemic pathogen worldwide, approaching 80% of the population in some areas, with a large burden of disease, particularly of immunocompromised and pregnant individuals. Our preliminary data identifies a receptor protein in immune cells that detects Toxoplasma. This can defeat the parasite, but also causes pathology for the host. The outcome of our project will work out what part of Toxoplasma is recognized by this receptor, with significance for the treatment of Toxoplasmosis.
Excess inflammation is a major problem after injury and in many diseases. Upon injury molecules are release that act as danger signals to alert the immune system to start the repair process. However, high levels of these dangers signals can impair the final stages of healing. Understanding how to prevent the immune system being excessively stimulated by these danger signals is key to being able to dampen inflammation after injury improve the healing response.
Defining The Role Of Nlrp1 And The Inflammasome In Host Defence And Inflammatory Disease
Funder
National Health and Medical Research Council
Funding Amount
$634,459.00
Summary
The immune system protects the body from invading pathogens, but it can also attack the body causing inflammatory and autoimmune diseases like arthritis and multiple sclerosis. This project will focus on the molecular regulation of the ïinflammasomeÍ, a protein complex that senses invading pathogens and triggers the immune response. Understanding the inflammasome may hold the key to a better understanding of how the good and bad functions of the immune system can be balanced to prevent disease.