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Fig. 4 | Cancer Cell International

Fig. 4

From: Targeted tumor therapy by Rubia tinctorum L.: analytical characterization of hydroxyanthraquinones and investigation of their selective cytotoxic, adhesion and migration modulator effects on melanoma cell lines (A2058 and HT168-M1)

Fig. 4

Long term growth inhibitory effects of a alizarin, b purpurin and c aqueous extract. Two different melanoma cell lines (A2058 and HT168-M1) and normal fibroblast cells (MRC-5) were applied as model cells and were incubated with the anthraquinones for 72 h. The ‘Inhibition index’ (Inh. ind.) is expressed as a percentage of the control. Data shown in the figure represent mathematical averages of six parallels and ± S.D. values. The level of significance is shown as follows: *p < 0.05; **p < 0.01; ***p < 0.001

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