Exploiting the lymphatic system for next generation vaccine development . Vaccination is the most successful and cost-effective means of combating infectious diseases. This project will look at how vaccine adjuvants work and will help the development of new vaccines against infections in both animals and man. It will also promote the training of Australian scientists in the field of vaccine research and development.
Mechanisms connecting diet, metabolism, gut microbiota and immunity. This project will identify the role of short chain fatty acids and the G-protein coupled receptor (GPR43) in regulating immune responses. This could explain how diet affects immune responses and also how certain bacteria in the gut provide benefits for immune defence.
Discovery Early Career Researcher Award - Grant ID: DE220100823
Funder
Australian Research Council
Funding Amount
$442,482.00
Summary
Elucidating ATPase function during NLRP3 inflammasome assembly. Humans and animals are constantly exposed to microbes, which inhabit their external environment as well as body surfaces such as the skin and gut. We are, however, able to co-exist with these microbes, because our immune system protects us from these everyday encounters. This proposal will reveal how an important immune protein called NLRP3 senses microbes and other physiological processes. When NLRP3 senses such factors and is acti ....Elucidating ATPase function during NLRP3 inflammasome assembly. Humans and animals are constantly exposed to microbes, which inhabit their external environment as well as body surfaces such as the skin and gut. We are, however, able to co-exist with these microbes, because our immune system protects us from these everyday encounters. This proposal will reveal how an important immune protein called NLRP3 senses microbes and other physiological processes. When NLRP3 senses such factors and is activated, it induces the release of messenger substances to alert other immune cells. This research will deliver fundamental knowledge of how animals normally co-exist with microbes.Read moreRead less
Combating invading DNA: a process conserved in evolution? Cells of our body defend against foreign genetic material, or DNA, which indicates an infection or invading DNA capable of causing mutation. These defences are so important that several layers have developed during evolution, and this project compares the responses of different organisms to foreign DNA.
The role of immuno-exosomes in innate immunity. This project aims to determine the role of exosomes (EV) in innate immunity. Exosomes are extracellular vesicles secreted by mammalian cells that have an important biological function in intercellular communication by transferring biologically active proteins, lipids, and RNAs to neighbouring or distant cells. Following exposure to a foreign organism, cells dynamically change the protein composition of the EV they secrete. While this data supports ....The role of immuno-exosomes in innate immunity. This project aims to determine the role of exosomes (EV) in innate immunity. Exosomes are extracellular vesicles secreted by mammalian cells that have an important biological function in intercellular communication by transferring biologically active proteins, lipids, and RNAs to neighbouring or distant cells. Following exposure to a foreign organism, cells dynamically change the protein composition of the EV they secrete. While this data supports a role for EV as key players in innate immunity, a full understanding of the biological relevance of these vesicles and how they serve as a cellular defence mechanism is lacking. This project will provide significant benefits such as addressing key questions in EV biology and providing new fundamental insights into a novel and poorly understood component of the innate immune response.Read moreRead less
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
Read moreRead less
Deciphering novel cross-talk between innate cytokine receptors. Understanding the basic functions of interferons, how they signal to cells, is central to understanding fundamental immunity. Interferons are crucial molecules of the immune system that are important for normal cell development and they protect the body from viral infection and cancer but can be deleterious in different autoimmune diseases and trauma settings. Preliminary Data shows there is a pathway of interferon signalling that h ....Deciphering novel cross-talk between innate cytokine receptors. Understanding the basic functions of interferons, how they signal to cells, is central to understanding fundamental immunity. Interferons are crucial molecules of the immune system that are important for normal cell development and they protect the body from viral infection and cancer but can be deleterious in different autoimmune diseases and trauma settings. Preliminary Data shows there is a pathway of interferon signalling that has previously been overlooked. This project aims to understand how this pathway works and how it contributes to the normal workings of cells. This fundamental science has future consequences for the design of vaccines and for the design of therapeutics to treat diseases that show defective interferon signalling.Read moreRead less
An investigation into CD1a, a versatile antigen-presenting molecule. This project aims to investigate how T lymphocytes are activated by lipids presented by the skin-associated antigen-presenting molecule, CD1a. Using X-ray crystallography and cellular immunology, we will provide fundamental insight into this poorly understood immunological axis. We will determine the molecular basis for how CD1a presents diverse self and foreign lipids, and how such CD1a-lipid complexes are recognised by the r ....An investigation into CD1a, a versatile antigen-presenting molecule. This project aims to investigate how T lymphocytes are activated by lipids presented by the skin-associated antigen-presenting molecule, CD1a. Using X-ray crystallography and cellular immunology, we will provide fundamental insight into this poorly understood immunological axis. We will determine the molecular basis for how CD1a presents diverse self and foreign lipids, and how such CD1a-lipid complexes are recognised by the responding T cells. This basic science discovery project will provide substantial new knowledge in the burgeoning field of lipid-mediated immunity, which should ultimately lead to new therapies targeting the CD1a lipid display molecule to either prevent immune mediated damage or promote protective immunity as required.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE140100070
Funder
Australian Research Council
Funding Amount
$650,000.00
Summary
An advanced in vivo imaging facility. An advanced in vivo imaging facility: This project will establish an advanced In Vivo Imaging Facility (IVIF) for examining host-microbe interactions and associated immunological processes within the context of the numerous infectious disease models within the University of Melbourne and associated collaborators. The Zeiss LSM 7MP 2-photon imaging system will provide enhanced capacity to directly visualise cellular and molecular events in real time, with gre ....An advanced in vivo imaging facility. An advanced in vivo imaging facility: This project will establish an advanced In Vivo Imaging Facility (IVIF) for examining host-microbe interactions and associated immunological processes within the context of the numerous infectious disease models within the University of Melbourne and associated collaborators. The Zeiss LSM 7MP 2-photon imaging system will provide enhanced capacity to directly visualise cellular and molecular events in real time, with greater sensitivity and in a broader range of tissues and organs. This will provide the opportunity for novel insights into numerous immunological and host-microbe interactions.Read moreRead less