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
Viruses are considered neither live nor dead, and it is understood that biological process within a virus must occur after it infects a cell. Our work reveals a previous unknown step in HIV known as pre-entry priming. These discoveries challenge our current dogma of how viruses function, and imply this pre-entry priming process is a built in mechanism for HIV to protect itself. This proposal will redefine our understanding of HIV and explore novel HIV vaccine design through these discoveries.
Mucosal Human Immunodeficiency Virus Vaccine Late Pre-clinical Evaluation
Funder
National Health and Medical Research Council
Funding Amount
$575,315.00
Summary
Despite many candidate vaccines entering clinical development for protection against HIV, none has yet been successful. This proposal centres on late preclinical development for a novel mucosal vaccine strategy for HIV, which combines a preclinically-proven approach to generating strong T cell immune responses, with an existing approach to generating broadly neutralising antibody responses to HIV. Proof of synergy between these approaches will lead directly to clinical development.
A vaccine to prevent AIDS is urgently needed. The European Union recently awarded over 20 million euros to a European consortium, called EAVI2020, to advance multiple HIV vaccines into human testing. Five Australian HIV vaccine experts are named investigators on this award to provide advanced laboratory analyses and intellectual input into the 5 year program if this NHMRC-EU Collaborative Research Grant is successful.