Wolbachia And West Nile Virus In Mosquitoes: Friends Or Foes?
Funder
National Health and Medical Research Council
Funding Amount
$561,028.00
Summary
Mosquito-borne viruses pose a great risk to human and animal health. Presence of compentent vectors of several viruses in Australia indicates vulnerability of Australia’s biosecurity. This project will define the mechanisms of inhibition of virus replication in mosquitoes by a symbiotic bacterium which can be utilized in virus inhibition.
Role Of Flavivirus-encoded Small Regulatory RNAs In Virus-mosquito Vector Interactions
Funder
National Health and Medical Research Council
Funding Amount
$547,216.00
Summary
Mosquito-borne diseases are major threats to human health. MicroRNAs are small non-coding ribonucleic acids (RNAs) that play important roles in development, cancer, apoptosis, immunity, longevity, and viral infections. We propose to identify the regulatory microRNAs from flaviviruses and establish their potential function in vector-arboviruses interactions. The project will put Australia at the forefront of research in the most rapidly developing area of microRNA research.
Chimeric Insect-specific Flaviviruses: A New Generation Of Diagnostics And Vaccines Against Mosquito-borne Viral Disease
Funder
National Health and Medical Research Council
Funding Amount
$549,937.00
Summary
Dengue, Zika and West Nile are mosquito-borne viruses that cause disease outbreaks world-wide. We will develop safe, cheap and authentic diagnostics and vaccines against these diseases based on novel viruses that only infect mosquitoes. This is a timely paradigm shift for vaccine and diagnostic development. This innovative strategy will have high impact in the field of vector-borne viral diseases and provide a blueprint to develop safe diagnostics and vaccines for other mosquito-borne diseases.
The Role Of Noncoding Viral RNAs In Flavivirus Infection And Exosomal Signalling
Funder
National Health and Medical Research Council
Funding Amount
$683,447.00
Summary
The application is aimed at investigating the novel role for viral noncoding RNAs in exosomal antiviral signalling and associated outcome of infection with West Nile virus. We will identify host enzymes involved in generation of viral noncoding RNAs, determine which host proteins they interact with and how these interactions determine their incorporation into secreted exosomes to influence outcome of infection.
Viral And Host Factors Determining Outcome Of Zika Virus Infection
Funder
National Health and Medical Research Council
Funding Amount
$910,780.00
Summary
The proposal aims at identifying viral and host factors determining outcomes of infection with Zika virus, a significant mosquito-transmitted pathogen associated with debilitating neurological pathology in new-borne babies from mothers infected during pregnancy. We will use cutting edge methodologies and infections models to bring our understanding of Zika virus infection to unprecedented level. The results could also facilitate identification of targets for effective anti-viral therapy.
Molecular Pathogenesis Of Emerging West Nile Viruses
Funder
National Health and Medical Research Council
Funding Amount
$594,133.00
Summary
West Nile virus (WNV) is a mosquito-borne virus that causes potentially fatal encephalitis in humans and horses. This project will investigate the recent emergence of pathogenic for horses WNV in Australia and the potential of this new isolate to cause severe disease in humans. We will define the viral and host factors determining the outcome of WNV infection. This project will provide knowledge on the factors involved in the emergence of virulent WNV strains from attenuated isolates.
The Role Of Noncoding Subgenomic Flavivirus RNA In Virus-host Interactions
Funder
National Health and Medical Research Council
Funding Amount
$624,429.00
Summary
Flaviviruses such as Dengue, Japanese encephalitis , and West Nile are major human pathogens causing more than 50 million infections per year. Elements in viral genome responsible for pathogenesis of these viruses are not well defined. Recently we have identified a unique for these viruses noncoding subgenomic flavivirus RNA (sfRNA) and showed that it is contributing to viral pathogenesis. In this proposal we aim to determine mechanisms by which sfRNA facilitates viral pathogenesis.