FIG. 2.
Enhancement of HIV-1ADA replication in nonprogressor clone NP1-3 (A) and NP1-6 (B) by treatment with anti-RANTES, MIP-1α, and MIP-1β Abs. Cells were cultured for 24 h in the presence of 10 μg of each Ab or isotype control Ab (control) per ml either separately or in combination as shown. Cells were then infected with HIV-1ADA as in the experiment shown in Fig. 1 and cultured in the respective Ab-containing medium. Virus production (p24) was measured after 2 weeks and is presented as the increase (percentage) over that of the control. Results of two independent experiments are shown.