Figure 3.

The production of cytokine mRNA determined by quantitative by PCR is shown for (A) HIV⁺ donor CD8⁺ T cells and (B) aged donor CD8⁺ T cells. The cDNA copies per ug RNA from the CD8⁺ T cells. The cDNA copies per ug RNA from the CD8⁺ T cells were derived from: 1, nonativated controls; 2, activated controls (INF-γ); 3, activated HIV⁺ or aged (INF-γ); 4, activated controls (TNF-α); 5, HIV⁺ or aged (TNF-α).