Proliferation of HL-60 and NB 4 cells.

Dose-response effects of indinavir, ritonavir, and saquinavir on proliferation of HL-60 (A) and NB4 (B) cells are shown. Results are expressed as a percent of control plates containing no protease inhibitor. Data represent mean ± SD of triplicate cultures. These figures show findings of at least 3 independent experiments. ■, indinavir; ⋄, ritonavir; ○, saquinavir.