Determinants Of The Clearance Of HIV Infected Cells By Successful AIDS Vaccines
Funder
National Health and Medical Research Council
Funding Amount
$188,500.00
Summary
A vaccine is urgently needed to halt the global AIDS epidemic caused by HIV infection. We have previously demonstrated that new generation vaccine technology can prevent HIV infection. DNA and fowlpoxviruses vaccines are designed to carry in parts of HIV and induce very vigorous immune defences to be mounted against HIV. The proposal seeks to understand why these vaccines work, their limitations, and to help guide further improvements to these vaccines. In particular, we will look at how these v ....A vaccine is urgently needed to halt the global AIDS epidemic caused by HIV infection. We have previously demonstrated that new generation vaccine technology can prevent HIV infection. DNA and fowlpoxviruses vaccines are designed to carry in parts of HIV and induce very vigorous immune defences to be mounted against HIV. The proposal seeks to understand why these vaccines work, their limitations, and to help guide further improvements to these vaccines. In particular, we will look at how these vaccines clear cells that become infected with the virus and which are the most important cells that do this. We will also look at whether HIV can hide away in latent forms despite seemingly successful vaccination. Importantly, we will address whether these vaccines should limit the spread of HIV between people, an important public health goal of successful vaccines.Read moreRead less
Biomedical methods to prevent HIV include vaccines, gels used vaginally or rectally, oral medicines taken before or after potential exposure to HIV, and male and female condoms. We aim to investigate the impact of several such prevention methods, both on HIV transmission in Australia and on the behaviour of people using these technologies. Potential users' knowledge and attitudes towards such products will be explored. Results will contribute to the design of future HIV prevention studies.
I am a medical epidemiologist investigating links between specific infectious agents and specific types of cancer in immune deficient populations. Through the exploration of these relationships, my research aims to allow the prevention of these types of c
The Interaction Between Sexually Transmissible Infections And Human Immunodeficiency Virus Infection In Homosexual Men
Funder
National Health and Medical Research Council
Funding Amount
$635,931.00
Summary
This project examines the inter-relationship between HIV infection and sexually transmitted infections (STIs) in homosexual men. The overall goal of the projet is to inform the development of STI prevention and treatment strategies which may be important in reducing HIV incidence in this population. Homosexual men comprise over 80% of people diagnosed with HIV infecton in Australia, and in many developed nations are one of the largest groups affected by HIV. Rates of other STIs are also increase ....This project examines the inter-relationship between HIV infection and sexually transmitted infections (STIs) in homosexual men. The overall goal of the projet is to inform the development of STI prevention and treatment strategies which may be important in reducing HIV incidence in this population. Homosexual men comprise over 80% of people diagnosed with HIV infecton in Australia, and in many developed nations are one of the largest groups affected by HIV. Rates of other STIs are also increased in homosexual men. Currently, HIV rates are increasing in Australia and in many developed countries. We are in need of new and effective methods of HIV prevention. Data in heterosexuals suggest that where STIs are common, the early detection and treatment of these infections may help reduce HIV incidence. There are few data on this relationship in homosexual men. We propose to utilise an existing Sydney cohort of homosexual men to collect data on biologic tests for STIs, history of recent diagnosis of STIs, and symptoms, to allow a comprehensive description of the epidemiology of STIs and their overlap with HIV. The quality of data on the interaction between HIV and STIs in this cohort will be superior to any previously collected in homosexual men, as it will include data on self-reported doctor diagnosed illness, state of the art biologic testing, and symptom data, for the full spectrum of important STIs. The results of this study will be helpful in determining strategies for HIV and STI screening, education and control in the population which comprises the great majority of cases of HIV infection in Australia, and one of the largest risk groups for HIV infection in the developed world. Screening coupled with treatment of asymptomatic STIs may be an effective new approach to HIV prevention in this population.Read moreRead less
AIDS is caused by the human immunodeficiency virus type 1 (HIV-1). Long-term HIV infection leads to increased incidence of Kaposi's sarcoma, AIDS dementia complex, and immune dysfunctions. The HIV-1 Tat protein has been linked to disease progression. However, Tat is predominantly found in the cell nucleus while measurable levels in patient serum. This is not believed to be a passive event caused by dying cells. Here we will investigate how Tat is released by HIV-1 infected cells.
HOST CELL FACTORS INCREASE THE EFFICIENCY OF HIV-1 REVERSE TRANSCRIPTION
Funder
National Health and Medical Research Council
Funding Amount
$636,919.00
Summary
We have found that when human immunodeficiency virus (HIV) infects a cell, it uses functions of the host to better infect. At this point, we do not know the identity of the host cell factors involved. If we are able to identify the factors we might be able to specifically target them without affecting normal cell functions. This approach has the advantage that it minimises the opportunities for the virus to develop drug resitance, which is increasingly a problem with HIV.
Whole Human Genone Expression Analysis In CD4+ CD8+ T Cells And Monocytes At Various Stages Of HIV Disease
Funder
National Health and Medical Research Council
Funding Amount
$380,558.00
Summary
HIV is an important global problem and what happens to human gene machinery at the level of different cell types upon contact with HIV remains unclear. We have a novel approach of analysing whole human genome expression in relation to HIV in diverse blood cell types. Identification and understanding of key genes will provide insights into how restoration of the host immune system could be achieved in the future in combating HIV infection and possible cure.