Figure 4.

Effect of rapamycin on growth of human thyroid cancer cell lines. The indicated cell lines were grown in media with 10% serum for 24 hours and then incubated with 20 nM rapamycin or vehicle and counted at the indicated times. Bars represent the percentage growth inhibition of the indicated cell lines, with vehicle-treated cells being 100%. Cell lines inhibited by 50% or greater or 50% or less by 6 days are shown in open or black bars, respectively.