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  • Title: HIV-specific CD4+ T cells and viremia: who's in control?
    Author: Jansen CA, van Baarle D, Miedema F.
    Journal: Trends Immunol; 2006 Mar; 27(3):119-24. PubMed ID: 16458605.
    Abstract:
    It has been proposed that HIV-specific CD4+ T cells with a central memory phenotype might be involved in controlling HIV replication. Based on recent data (lack of protective effects of HIV-specific CD4+ T-cell responses in acutely infected patients undergoing treatment interruptions; loss of initially strong T-helper cell responses in progressors to AIDS; and lack of prognostic value of HIV-specific CD4+ T cells in a prospective study) we argue that the level of persistent viremia determines the fate of HIV-specific CD4+ T cells. We postulate that, rather than the absence of HIV-specific T cells, it is the viral and immune activation set points that are major determinants of progression to AIDS. This influences ideas about the type of cellular immunity a protective HIV vaccine should induce.
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