FIG. 7.

Infection-related sensitivity to etoposide. A20 and A20-HE cells were treated with vehicle or etoposide at the indicated concentrations in the absence (A) or presence of cidofovir (50 ng/ml) (B). Cell viabilities were determined 18 h posttreatment and are expressed as the percentage of viable cells with treatment relative to vehicle-treated controls. Anti-Fas (2.5 μg/ml in the presence of 10 μg/ml cycloheximide) was included as a control for cell death induction in panel B. Results are means of triplicate samples. Error bars represent standard deviations.