Evaluating host-parasite interplay in individual tissues. The immune system of the host and the infecting parasite has coevolved into a sophisticated balance of power. This project will explore this balance using Schistosoma japonicum infection in sheep and determine immune mechanisms unleashed by the host in various tissues as well as the response of the parasite to these attacks.
Defining pathways that control T cell lifespan for long-term immunity. This project will investigate the cellular and molecular pathways regulating lifespan of tissue-resident memory T cells (Trm cells), a non-circulating T cell subset that play a crucial role in the frontline defence against infection. Significantly, how long Trm cells live is paramount to how long immunity is sustained. Using cutting-edge cellular and molecular techniques, the expected outcomes of this project include identifi ....Defining pathways that control T cell lifespan for long-term immunity. This project will investigate the cellular and molecular pathways regulating lifespan of tissue-resident memory T cells (Trm cells), a non-circulating T cell subset that play a crucial role in the frontline defence against infection. Significantly, how long Trm cells live is paramount to how long immunity is sustained. Using cutting-edge cellular and molecular techniques, the expected outcomes of this project include identification of the genes and processes that control lifespan. This should provide significant benefits in the basic knowledge of how longevity of immunity is regulated. This understanding will be useful for future immunotherapeutic applications, such as veterinary or human vaccines requiring maximal duration of immunityRead moreRead less
Immunonutrition: A novel concept to overcome gastrointestinal tract mucosal damage after weaning in pigs. A sustainable Australian pork industry relies on further reductions in costs whilst considering the enhanced health and welfare of pigs. This project will lead to more precise estimates of amino acid requirements in the post-weaning period, which will contribute to an increased efficiency of nutrient utilization and enhance the welfare of pigs recovering from the weaning process.
Investigation of the immunological properties of a novel adjuvant in sheep. The induction of strong immune responses without side effects is a highly desirable goal in vaccine R&D. The recently developed adjuvant DCtag utilises unique properties of dendritic cells to boost both cellular and humoral immune responses without tissue damage. This project will identify the mechanisms of immune induction of DCtag using unique properties of our sheep cannulation model. This will allow further optimisat ....Investigation of the immunological properties of a novel adjuvant in sheep. The induction of strong immune responses without side effects is a highly desirable goal in vaccine R&D. The recently developed adjuvant DCtag utilises unique properties of dendritic cells to boost both cellular and humoral immune responses without tissue damage. This project will identify the mechanisms of immune induction of DCtag using unique properties of our sheep cannulation model. This will allow further optimisation of DCtag adjuvanticity in sheep, which will then be applied to the delivery of a prototype peptide based vaccine against foot and mouth disease virus, a veterinary disease of global importance, hereby increasing Australia's leadership in biotechnology.Read moreRead less
Immunological mechanisms underlying the protective immune responses induced by botulinum oil adjuvanted vaccine. Botulism is recognised as an important bacterial pathogen in commercial beef cattle in Australia and around the world. Development of affective, well-researched vaccine against Clostridium botulinum is a high priority for the cattle industry. A novel oil adjuvanted vaccine (Singvac from Fort Dodge Pty Ltd) has advantage over conventional vaccines as it provides full protection follo ....Immunological mechanisms underlying the protective immune responses induced by botulinum oil adjuvanted vaccine. Botulism is recognised as an important bacterial pathogen in commercial beef cattle in Australia and around the world. Development of affective, well-researched vaccine against Clostridium botulinum is a high priority for the cattle industry. A novel oil adjuvanted vaccine (Singvac from Fort Dodge Pty Ltd) has advantage over conventional vaccines as it provides full protection following a single administration. The aims of this study are to investigate the immunological mechanisms underlying the protective response by this novel vaccine using bovine and murine models. This study will discover new control measures for botulism in Australia.Read moreRead less
Linking immunomodulation and latency in alphaherpesvirus infection. Herpesviruses cause major diseases in humans and all domestic animal species. Latency forms a significant part of the evolutionary success of herpesviruses, by enabling transmission of the virus throughout the lifetime of the host. Our work has shown that an alphaherpesvirus protein can divert the host’s immune response to become more antibody-mediated and less T cell-mediated. This study explores the consequences of this immune ....Linking immunomodulation and latency in alphaherpesvirus infection. Herpesviruses cause major diseases in humans and all domestic animal species. Latency forms a significant part of the evolutionary success of herpesviruses, by enabling transmission of the virus throughout the lifetime of the host. Our work has shown that an alphaherpesvirus protein can divert the host’s immune response to become more antibody-mediated and less T cell-mediated. This study explores the consequences of this immune diversion, and examines whether this reduced T cell response enables the development of latent infections. Disrupting the virus-host balance by alterations to this conserved viral protein will enable novel approaches to controlling these economically significant viruses.Read moreRead less
Host-tumour interplay in Tasmanian devils with devil facial tumour disease: can immune cells be harnessed for therapy? Tasmanian devils only exist naturally in Tasmania and Devil Facial Tumour Disease, an infectious cancer, could cause the extinction of the Tasmanian devil. This project will determine if Devil Facial Tumour Disease reduces the effectiveness of the devil's immune system and test if activated immune cells can protect against this disease.
Using adaptive and innate immunity to chytridiomycosis to save amphibians from extinction. Chytridiomycosis has been implicated in the decline or extinction of hundreds of frog species worldwide since its emergence in the 1970s. The goal of this project is to identify immune frogs for captive breeding and successful reintroduction, screen populations to predict their risk of decline and develop targeted vaccines.
Superbugs and veterinary drugs: are multidrug-resistant zoonotic pathogens residing in Australian animals? Antibiotic resistance is a growing problem affecting human health that is now emerging in animals and veterinary hospitals. This project will integrate surveillance with novel treatments and preventatives to develop effective strategies to limit the impact of resistant bacteria to animal health and prevent transfer between humans and animals.
Application of in vivo electroporation to DNA immunisation. The in vivo delivery of plasmid DNA induces immune responses to the encoded protein vaccine. In large animals including humans, DNA vaccination needs to be further improved before becoming a commercial reality, at least partially due to the very low levels of expression in vivo. In vivo electroporation has proven to be an effective way to enhance the level of protein expression and increase DNA vaccine efficacy. We combine enhanced in ....Application of in vivo electroporation to DNA immunisation. The in vivo delivery of plasmid DNA induces immune responses to the encoded protein vaccine. In large animals including humans, DNA vaccination needs to be further improved before becoming a commercial reality, at least partially due to the very low levels of expression in vivo. In vivo electroporation has proven to be an effective way to enhance the level of protein expression and increase DNA vaccine efficacy. We combine enhanced in vivo expression using electroporation with the co-delivery of plasmids encoding cytokines to enhance and modulate DNA vaccine in sheep. We will apply our findings to bovine viral diarrhoea virus (BVDV), both as an animal model for humans and as an economically important diseases of livestock.Read moreRead less