Figure 4From: Growth-inhibitory effects of the chemopreventive agent indole-3-carbinol are increased in combination with the polyamine putrescine in the SW480 colon tumour cell line Recovery of cells from 24 hour treatment with I3C. Cells were cultured in the presence of I3C for 24 hours, after which cells were either maintained in I3C-containing medium or replenished with fresh medium and allowed to recover, as described in Materials and Methods. Cell proliferation is expressed as a % of the control values, data are presented as mean ± pooled SD (shown on control bar only; n = 3). Significant difference from the control (DMSO treated) is indicated by * (P < 0.05).Back to article page