The Role Of PLZF In Regulating The Antiviral Activity Of Interferons
Funder
National Health and Medical Research Council
Funding Amount
$652,005.00
Summary
Interferons are the first line of defence against viral infection. We have shown that the transcription factor promyelocytic leukemia zinc finger protein (PLZF) is a novel regulator of the interferon response. Thus we hypothesize that PLZF is a critical component of the host's innate immune system. This study will provide new insights into the understanding of signal transduction mechanisms, as well as improve our ability to modulate sensitivity to interferon to protect against viral diseases.
Interleukin-1β Biology: Mechanisms Of Regulation, Activation And Secretion
Funder
National Health and Medical Research Council
Funding Amount
$641,979.00
Summary
The protein called intelreukin-1 (IL-1) is required to fight off invading pathogens but more recently has been implicated as contributing to diverse diseases characterised by excessive inflammation, such as arthritis, gout, atherosclerosis and even cancer. This project aims to understand how IL-1 is made within cells and then activated to cause inflammation, which will enable these processes to be therapeutically targeted.
ROLE OF RIP KINASES & IAPs IN MUCOSAL IMMUNE DEFENCE
Funder
National Health and Medical Research Council
Funding Amount
$631,168.00
Summary
Pathogenic bacteria are master manipulators of the inflammatory signalling pathways designed to thwart them. Understanding how they do this will allow us to develop drugs that limit their ability to infect. We have shown that pathogenic bacteria inject a protein called EspL into human cells to promote the destruction of a family of human proteins, called RIP Kinases (RIPK), that co-ordinate the inflammatory response and aim now to discover how EspL causes RIPK degradation and thereby promotes in ....Pathogenic bacteria are master manipulators of the inflammatory signalling pathways designed to thwart them. Understanding how they do this will allow us to develop drugs that limit their ability to infect. We have shown that pathogenic bacteria inject a protein called EspL into human cells to promote the destruction of a family of human proteins, called RIP Kinases (RIPK), that co-ordinate the inflammatory response and aim now to discover how EspL causes RIPK degradation and thereby promotes infection.Read moreRead less
Structure-function Of Type I Interferon Receptors: Informing The Basis For Selective Modulation Of Signal Transduction And Function
Funder
National Health and Medical Research Council
Funding Amount
$1,316,153.00
Summary
Interferons (IFNs) are a family of proteins with critical roles in infectious and inflammatory diseases and cancers. Currently we do not understand why there are so many type I IFNs, their different functions and how they are achieved. This project will determine at a fine molecular level how different IFNs interact with molecules on target cells and transmit particular signals. We will focus on a novel IFN? that we discovered. These studies will underpin the development of new therapies.
Novel Regulation Of Inflammasomes By Cytokine Signalling Pathways In Gastric Disease
Funder
National Health and Medical Research Council
Funding Amount
$674,772.00
Summary
Stomach inflammation (gastritis) is strongly associated with Helicobacter pylori bacterial infection, and can also progress to gastric cancer. However, it remains largely unknown how Helicobacter triggers these gastric diseases in people. Using a mouse model which develops gastric inflammation and tumours, our aim is to determine the role of protein complexes in the stomach called inflammasomes in triggering chronic inflammatory responses to Helicobacter that lead to gastric disease.
Regulation Of NOD Signalling By IAPs And RIP Kinases
Funder
National Health and Medical Research Council
Funding Amount
$643,172.00
Summary
Alterations in NOD signalling have been implicated in various human inflammatory diseases, particularly in Crohn’s disease and asthma. In this project we will identify new molecules that regulate NOD signalling and test the effect of drugs that inhibit known components of these pathways to determine their utility in treating inflammatory diseases.
Histone deacetylase functions in immune cells. This project aims to define how an enzyme (a histone deacetylase) enables innate immune cells (macrophages) to respond to specific danger signals, such as those activating Toll-like Receptors. To identify processes that provide specificity to signal transduction pathways, this project will characterise protein targets and biological functions of a specific class IIa histone deacetylase in macrophages. This project expects to result in an understandi ....Histone deacetylase functions in immune cells. This project aims to define how an enzyme (a histone deacetylase) enables innate immune cells (macrophages) to respond to specific danger signals, such as those activating Toll-like Receptors. To identify processes that provide specificity to signal transduction pathways, this project will characterise protein targets and biological functions of a specific class IIa histone deacetylase in macrophages. This project expects to result in an understanding of histone deacetylases and protein deacetylation in immune cell responses which can be harnessed to manipulate cell functions for basic science and biotechnology uses.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE200101300
Funder
Australian Research Council
Funding Amount
$423,711.00
Summary
Lipopolysaccharide-induced macrophage extracellular traps in host defence. The innate immune system is the first line of defence against invading microbes. Macrophages are key innate immune cells that deploy antimicrobial responses to clear infection and restore health. There are many critical unanswered questions on the molecular mechanisms that drive macrophage inflammatory and antimicrobial pathways. This project aims to elucidate a novel inflammatory mechanism that immobilises and kills inva ....Lipopolysaccharide-induced macrophage extracellular traps in host defence. The innate immune system is the first line of defence against invading microbes. Macrophages are key innate immune cells that deploy antimicrobial responses to clear infection and restore health. There are many critical unanswered questions on the molecular mechanisms that drive macrophage inflammatory and antimicrobial pathways. This project aims to elucidate a novel inflammatory mechanism that immobilises and kills invading bacteria via newly discovered structures made by dying macrophages called extracellular traps. Insight we gain by interrogating this immune cell signalling pathway, called the non-canonical inflammasome, will add valuable knowledge to our fundamental understanding of mammalian inflammation and anti-microbial responses
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Regulation Of Interleukin-1? Activation In Inflammatory Diseases
Funder
National Health and Medical Research Council
Funding Amount
$624,429.00
Summary
IL-1? protein is required to combat infection but also contributes to inflammatory diseases, such as Rheumatoid arthritis and diabetes. Understanding how IL-1? is produced is therefore critical to the development of better therapeutics for these conditions. We have identified a new pathway involving the protein RIP3 that can cause IL-1? activation. This project will examine how this pathway is molecularly regulated and determine its importance in inflammatory disease models.
Defining The Role Of The Novel Gene MUL1 In Antiviral Innate Immunity
Funder
National Health and Medical Research Council
Funding Amount
$511,596.00
Summary
Uncontrolled immune responses can clinically manifest in chronic inflammatory disorders. Viral infections carry a significant global health burden, causing acute and chronic inflammation. This study will characterize a novel regulator of anti-viral immune responses. Understanding the regulation of infection models may provide the means of manipulating immune responses to control infections and provide better health outcomes.