Alphaherpesvirus recombination: safety implications for attenuated Herpesvirus vaccines. Under certain conditions some herpesviruses, including mild vaccine strains, can recombine to generate virulent viruses. Following findings that this occurred naturally between Australian poultry vaccines, with devastating results, this project will study natural herpesvirus recombination with the aim of allowing vaccines to be used more safely.
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.
Virulence determinants influencing re-emergence of a complex RNA virus. This project intends to examine the effects that specific genes in naturally occurring recombinants have on their capacity to cause disease and spread between chickens. Coronaviruses are major pathogens of domestic animals throughout the world. Recurrent re-emergence of the coronavirus of chickens, infectious bronchitis virus, has been associated with recombination between wild type viruses and vaccine viruses, but the facto ....Virulence determinants influencing re-emergence of a complex RNA virus. This project intends to examine the effects that specific genes in naturally occurring recombinants have on their capacity to cause disease and spread between chickens. Coronaviruses are major pathogens of domestic animals throughout the world. Recurrent re-emergence of the coronavirus of chickens, infectious bronchitis virus, has been associated with recombination between wild type viruses and vaccine viruses, but the factors influencing this, and in particular the selective advantages genes from vaccine viruses confer on these recombinants, are unknown. The ultimate aim of the project is to identify both novel vaccines and alternative management strategies that might reduce the frequency of re-emergence of this virus and other coronaviruses.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
Elucidating a key developmental switch in Haemonchus contortus using a massively parallel picolitre reactor sequencing-coupled genomic and bioinformatic platform. The national/community benefits of this project include enhanced focus on animal and human health biotechnology through the development of safe anti-parasite compounds/vaccines; improved and sustainable control of key parasites with decreased risk of induction of drug resistance; increased profitability of agricultural animal productio ....Elucidating a key developmental switch in Haemonchus contortus using a massively parallel picolitre reactor sequencing-coupled genomic and bioinformatic platform. The national/community benefits of this project include enhanced focus on animal and human health biotechnology through the development of safe anti-parasite compounds/vaccines; improved and sustainable control of key parasites with decreased risk of induction of drug resistance; increased profitability of agricultural animal production; consolidation of a technology platform for further applications in genomics and post-genomics of pathogens of global significance and construction of a pipeline for the validation of drug targets; capturing the benefits from fundamental research and strengthening links between fundamental and applied research; and increasing the quality and quantity of scientifically skilled people in biotechnology.Read moreRead less
Discovery of early developmental events in the transition to parasitism in the hookworm Ancylostoma caninum using genomic technologies. The national/community benefits are: (1) to develop a long-term, high quality scientific and technological program contributing to national objectives, including the maintenance of a strong capability in basic research, the development of new scientific concepts and the enhancement of international collaborative links; (2) to strengthen the links between basic a ....Discovery of early developmental events in the transition to parasitism in the hookworm Ancylostoma caninum using genomic technologies. The national/community benefits are: (1) to develop a long-term, high quality scientific and technological program contributing to national objectives, including the maintenance of a strong capability in basic research, the development of new scientific concepts and the enhancement of international collaborative links; (2) to strengthen the links between basic and applied research; (3) to develop excellence in research by promoting collaborative research, resulting in a more efficient use of resources in a national and international context; (4) to enhance the skills-base in biology and biotechnology; (5) to substantially increase global visibility through quality research, leading to an increased investment in Australian science.Read moreRead less
Structural and functional investigations into a novel chemokine binding protein encoded by evolutionarily diverse alphaherpesviruses. The outcomes of this project will help control disease caused by alphaherpesviruses, including disease in livestock (horses and poultry) and wildlife (kangaroos and wallabies). This will enhance animal health and welfare and will also benefit the associated industries. Livestock industries are critically important to the Australian economy (equine and poultry indu ....Structural and functional investigations into a novel chemokine binding protein encoded by evolutionarily diverse alphaherpesviruses. The outcomes of this project will help control disease caused by alphaherpesviruses, including disease in livestock (horses and poultry) and wildlife (kangaroos and wallabies). This will enhance animal health and welfare and will also benefit the associated industries. Livestock industries are critically important to the Australian economy (equine and poultry industries annually contribute approximately $7.7 and $2.6 billion respectively to our GDP). Wildlife species are crucial to Australian ecosystems and feature in the Australian tourism industry. This project is expected to strengthen international research collaborations and further enhance Australia's reputation as a world-class leader in research and biotechnology.Read moreRead less
Avoiding the immune response: lessons from 'simple' bacteria. Some of the most important bacterial diseases of domestic animals are caused by mycoplasmas. Improved control of these diseases would significantly improve agricultural productivity by reducing losses associated with reduced feed conversion efficiency and increased susceptibility to other diseases, as well as improve animal welfare and public health, by reducing the need for antibiotic therapy to control these diseases in food produci ....Avoiding the immune response: lessons from 'simple' bacteria. Some of the most important bacterial diseases of domestic animals are caused by mycoplasmas. Improved control of these diseases would significantly improve agricultural productivity by reducing losses associated with reduced feed conversion efficiency and increased susceptibility to other diseases, as well as improve animal welfare and public health, by reducing the need for antibiotic therapy to control these diseases in food producing animals.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.
Phase-variable epigenetic regulators in bacterial veterinary pathogens. This project aims to identify phasevarion regulated genes in the major bacterial swine pathogens Streptococcus suis and Actinobacillus pleuropneumoniae. Both species contain randomly switching epigenetic regulators that control expression of multiple genes by epigenetic mechanisms. Identifying phasevarion controlled genes will inform and direct future vaccine development for important livestock species.