In recent years it has become clear that certain white blood cells called CD8+ T lymphocytes or killer T cells are required to protect people against HIV. Unfortunately, current vaccines that produce or anti-HIV CD8 T cells only produce effective T cells for a short period. In this project we intend to test a novel vaccine vector called a Kunjin replicon, which promises to persistently produce or maintain effective T cells because the vaccine itself persists and continually immunises for extende ....In recent years it has become clear that certain white blood cells called CD8+ T lymphocytes or killer T cells are required to protect people against HIV. Unfortunately, current vaccines that produce or anti-HIV CD8 T cells only produce effective T cells for a short period. In this project we intend to test a novel vaccine vector called a Kunjin replicon, which promises to persistently produce or maintain effective T cells because the vaccine itself persists and continually immunises for extended periods. We intend to test the ability of this vaccine to persist and persistently produce effective CD8 T cells not only systemically in the blood system but also at mucosal surfaces, where HIV usually gains entry during sexual intercourse.Read moreRead less
Unravelling Plasmodium Vivax Transmission To Anopheles Mosquitoes: Role Of Naturally Acquired Transmission Blocking Immunity And Efficacy Of Novel Vaccine And Drug Candidates
Funder
National Health and Medical Research Council
Funding Amount
$431,000.00
Summary
This project is aimed at better understanding transmission of P. vivax, the world’s most widely spread malaria parasite. Using a newly established experimental platform that enables us to feed P. vivax infected blood to Anopheles farauti mosquitoes, we can start researching factors in human blood that determine P. vivax infection success, test new vaccine and drug candidates for their ability to block transmission and thus significantly advance science surrounding this neglected parasite.
Vaccine To Prevent Influenza Virus And Bacterial Super-infection.
Funder
National Health and Medical Research Council
Funding Amount
$707,717.00
Summary
Influenza viruses have the ability to pre-dispose infected hosts toward secondary bacterial complications. The mortality of viral infections that are complicated by a concurrent, or subsequent, bacterial infection (known as a super-infection), is often greater than that of either the virus or the bacteria alone. We will develop a novel multi-pathogen vaccine candidate against the major upper respiratory tract pathogens - Influenza A and Streptococcus pyogenes to prevent super-infections.
Enabling Technologies For Design And Delivery Of Novel Vaccines Against Infectious Diseases And Cancer.
Funder
National Health and Medical Research Council
Funding Amount
$925,346.00
Summary
This grant will support research necessary to develop the next generation of vaccines. These will combat diseases caused by bacteria and viruses and can also be used to fight cancer. The broad range of application is made possible through the incorporation of simple molecular features that activate the immune system. The intellectual property that has been developed is protected by a patent portfolio some patents of which are already licenced to the pharmaceutical industry.
Enhancing Australia's Pandemic Influenza Vaccine Output By Increasing The Yeild Of Vaccine From Eggs
Funder
National Health and Medical Research Council
Funding Amount
$251,517.00
Summary
Influenza epidemics cause significant morbidity and mortality, particularly amongst the young and elderly. Unlike other vaccines, a new flu vaccine formulation needs to be prepared each year from the currently circulating strain. This involves a long process of preparing new seed vaccine stock, which is then tested, manufactured and distributed. The situation is even more complicated by the ability of different influenza strains to reassort with others. An example of current major concern is the ....Influenza epidemics cause significant morbidity and mortality, particularly amongst the young and elderly. Unlike other vaccines, a new flu vaccine formulation needs to be prepared each year from the currently circulating strain. This involves a long process of preparing new seed vaccine stock, which is then tested, manufactured and distributed. The situation is even more complicated by the ability of different influenza strains to reassort with others. An example of current major concern is the possibility of deadly avian flu viruses, such as H5N1, to gain the capacity to directly infect humans by recombining with a human strain and thereby starting a new global pandemic. When the next influenza pandemic occurs, the availability of a vaccine will be of the highest priority and early supply of vaccines will save millions of lives. Since vaccination is the only sustainable defense, we face an urgent need to have the capacity to supply large numbers of vaccine doses of influenza vaccines within a short period of time. Currently, the only way of producing flu vaccines is in eggs. The speed of vaccine supply is totally dependant on the yield of vaccine from eggs and the number of eggs that can be processed at any one time. Since there are severe constraints on the number of eggs that can be simultaneously processed, the limiting factor that can be addressed is the actual yield of vaccine per egg. The aim of this project is the develop methods that allow higher levels of vaccine virus to grow in eggs. We will take a multi-pronged approach to enhancing influenza vaccine production that are directed toward increasing the capacity of eggs to promote virus replication, as well as towards the vaccine strain to boost its ability to replicate in the egg. The outcome will be an enhanced capacity for vaccine manufacturers to quickly and effectively expand vaccine supplies which will directly impact on global morbidity and mortality during a flu pandemic.Read moreRead less
Chimeric Virus-like Particles (VLPs) Displaying H1, H3 And H5 Haemagglutinins - Construction And Immunogenicity
Funder
National Health and Medical Research Council
Funding Amount
$207,543.00
Summary
Virus-like particles (VLPs) provoke strong immune responses in the body. We have developed a novel VLP system that allows the production of VLPs containing foreign vaccine antigens of much larger size than previously possible, and have shown that these VLPs provoke strong immune responses in mice without the use of adjuvants. The capacity of these VLPs is large enough to accommodate the most important vaccine antigen of influenza, the haemagglutinin (HA) molecule. We will test whether VLPs can b ....Virus-like particles (VLPs) provoke strong immune responses in the body. We have developed a novel VLP system that allows the production of VLPs containing foreign vaccine antigens of much larger size than previously possible, and have shown that these VLPs provoke strong immune responses in mice without the use of adjuvants. The capacity of these VLPs is large enough to accommodate the most important vaccine antigen of influenza, the haemagglutinin (HA) molecule. We will test whether VLPs can be produced containing each of the three most important HA types _ H1 and H3 that are currently circulating in man, and H5 (avian) that is considered a pandemic threat. VLPs will be tested for their ability to induce neutralizing antibody and cellular immune responses in mice, and for their ability to protect ferrets from influenza infection. If successful, the HA-VLP system would provide a method for the rapid production of new influenza vaccines using large-scale fermentation technology as for hepatitis B and many other vaccines, rather than eggs or cell culture as used for current influenza vaccines.Read moreRead less
Dengue Fever Vaccine: Towards Low Cost Production And Delivery
Funder
National Health and Medical Research Council
Funding Amount
$612,039.00
Summary
With rising populations and a warming climate mosquito borne viral diseases will become more prevalent and low-cost vaccine production & delivery systems will become increasingly important. Here a microalgae based vaccine production platform will be coupled to proven Nanopatch & low cost oral vaccine delivery. The focus is on a Dengue virus vaccine, as Dengue causes 400 million infections & 100 million symptomatic cases annually.