Figure 1.
Baseline ASC frequencies and spontaneous IgG secretion in cohort 1. ASC frequencies were determined in freshly isolated PBMCs from uninfected individuals (n = 6) and from three groups of individuals who had been infected with HIV-1 for varying lengths of time. All study subjects were drug naive at the time of assay except for one individual whose baseline value could only be determined after 1 wk of therapy (indicated by asterisk). ELISPOT plates were coated with either (a) anti–human IgG Fc to detect IgG-ASCs or (b) anti–human IgM Fc to detect IgM-ASCs. (c) Spontaneous IgG secretion after 8 d of culture was also measured by ELISA for the same individuals. Bars represent the median values for each group.