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- W2079684429 abstract "SUMMARY In a prospective study of 152 HIV-1 patients (with and without progression to AIDS) we examined CD28 MoAb costimulation and CD3 MoAb response using whole blood culture at baseline and up to either the time of AIDS diagnosis or the end of the observation period. CD28 antigen expression on both CD4+ and CD8+ T lymphocytes was also studied in both groups of patients. In patients who progressed to AIDS, CD28 MoAb costimulation was found to be decreased. Univariate time-dependent analysis showed that decreases in (i) absolute numbers of either CD4+, CD4+CD28+, CD8+CD28+ T cells, (ii) CD28 MoAb costimulation, and (iii) CD3 MoAb response, and an increase in CD8+CD28− %, are significant predictors for progression to AIDS. In addition, multivariate time-dependent analysis demonstrated that a decrease in CD28 MoAb costimulation (but not a decrease in CD3 MoAb response) was predictive for progression to AIDS, as were decreases in the percentage of CD4+ T cells and the absolute number of CD4+CD28+ T cells. Thus, CD28 MoAb costimulation can be considered a useful assay for monitoring HIV-1 infection. Furthermore, apart from the early increase in the percentage of CD8+CD28− T cells and an increase in the percentage of CD28− on CD8+ T cells in both groups of patients at baseline compared with normal controls, a negative correlation was found to exist between the percentages of CD4+ or CD4+CD28+ T cells and the percentage of CD8+CD28− T cells; this suggests that these cells are probably mutually regulated." @default.
- W2079684429 created "2016-06-24" @default.
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- W2079684429 date "2000-03-01" @default.
- W2079684429 modified "2023-09-26" @default.
- W2079684429 title "CD28 costimulation and CD28 expression in T lymphocyte subsets in HIV-1 infection with and without progression to AIDS" @default.
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- W2079684429 doi "https://doi.org/10.1046/j.1365-2249.2000.01153.x" @default.
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