Host Factors and the Pathogenesis of HIV-Induced Disease CDC Daily UpdateImportant note: Information in this article was accurate in 1996. The state of the art may have changed since the publication date.

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Host Factors and the Pathogenesis of HIV-Induced Disease

Nature (12/12/96) Vol. 384, No. 6609, P. 529
Fauci, Anthony S.


Abstract: A variety of host and viral factors effect HIV infection and disease progression. In a review of the research on these factors, Anthony S. Fauci, director of the National Institute of Allergy and Infectious Diseases, focuses on the balance between host factors that stimulate HIV and those that suppress the virus. This balance determines the net level of viral replication and the consequent course of disease. Activation of the immune system by opportunistic pathogens like Mycobacterium tuberculosis result in increased HIV replication and accelerated disease progression. Furthermore, cellular activation and the expression of HIV-inducing cytokines are also associated with an immune response. HIV- suppressing cytokines have also been identified, as well as chemokine receptors used by HIV as co-receptors. A genetic defect in one of HIV's co-receptor, found in 20 percent of western European Caucasians, was found to offer limited protection against HIV infection. These findings have important implications for potential treatment and prevention strategies, Fauci concludes.


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