Figure 4 .

Anti-tumorigenicity effect of the xanthones extract on HCT 116 cells. Clonogenicity (a): negative control (1), α-mangostin at 5 μg/ml (2) and the xanthones extract at 5 μg/ml (3). Cell migration (b): wounds photographed at zero time (1), and the treated cells after 24 h; negative control (2), α-mangostin at 5 μg/ml (3) and the xanthones extract at 5 μg/ml (4). Matrigel invasion (c): untreated cells (1), α-mangostin at 6 μg/ml (2) xanthones extract at 6 μg/ml (3) and at 4.5 μg/ml (4).