Rivière Y, McChesney MB, Porrot F, Tanneau-Salvadori F, Sansonetti P, Lopez O, Pialoux G, Feuillie V, Mollereau M, Chamaret S. Gag-specific cytotoxic responses to HIV type 1 are associated with a decreased risk of progression to AIDS-related complex or AIDS.
AIDS Res Hum Retroviruses 1995;
11:903-7. [PMID:
7492437 DOI:
10.1089/aid.1995.11.903]
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Abstract
The duration of human immunodeficiency virus (HIV-1) infection prior to the development of AIDS is variable, and for most patients the exact time of infection is not known. A group of 38 HIV-1-infected subjects was tested while asymptomatic for comparative cytotoxic lymphocyte responses to the Gag and envelope antigens of HIV-1. Twenty of the 38 patients had no detectable primary cytotoxic T lymphocyte (CTL) response to Gag, and this was associated with a relative risk of 1.89 for progression to ARC or AIDS during the subsequent 3 to 40 months of observation when compared with patients who had Gag-specific CTL activity at the beginning of the observation period. In contrast, no significant association was observed between envelope-specific cytotoxic activity and disease progression. Other patient characteristics, including CD4+ T lymphocyte counts and antibody levels to the p24gag protein, measured at the start of observation, did not correlate with disease progression during the observation period. This suggests that the anti-Gag CTL response may be protective during HIV-1 infection.
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