Molecular studies of the astrocyte reservoir of HIV-1 in the central nervous system

Funding Activity

Website
http://purl.org/au-research/grants/nhmrc/433920

Funding Status
Closed

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Funded Activity Summary

Human immunodeficiency virus type 1 (HIV-1) causes AIDS and, to date, has infected approximately 20 thousand people in Australia and more than 40 million worldwide. HIV infects the central nervous system and causes HIV associated dementia in 10-20% of patients with AIDS. Despite the introduction of highly active antiretroviral therapy the prevalence in Australia continues to rise and studies have shown that the incidence has been under represented in the South east Asian region. Infection of the CNS has two major implications for the treatment of AIDS patients. Firstly, HIV-associated dementia is the most common cause of dementia in people under 40 and this continuing increase in the number of young adults with dementia is placing increased pressure on health resources in the community. Secondly, strategies aimed at eradicating HIV infection from AIDS patients have thus far have failed to take into account the important and unique viral reservoir present in the CNS of an infected patient. The mechanisms involved in HIV-1infection of the brain remain unclear. Understanding the mechanisms by which HIV enters, infects and replicates the brain, are pivotal to the development of regimes to prevent infection of the brain in the first instance as well as development of targeted drug therapy to prevent dementia. Our preliminary studies have shown that HIV infection of the brain involves unique HIV virus and cellular mechanism distinct to those observed for the blood and other organs. This study seeks to clarify such mechanisms. This study will contribute to a greater understanding of how HIV-1 enters the brain and causes dementia, both of which are essential to the development of new drugs to treat HIV-1 infection.

Funded Activity Details

Start Date: 01-01-2007

End Date: 01-01-2009

Funding Scheme: NHMRC Project Grants

Funding Amount: $533,828.00

Funder: National Health and Medical Research Council

Research Topics

ANZSRC Field of Research (FoR)

Medical Virology

ANZSRC Socio-Economic Objective (SEO)

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Other Keywords

AIDS and immunodeficiency | Astrocytes | HIV/AIDS | Infectious disease | Mechanism of human immunodeficiency virus infection | Neuropathogenesis | transcriptional regulation | virus entry and replication

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