Fig. 6

Effects of butein on experimental lung metastasis. a B16F10 cells (2x10⁶) were injected into the lateral tail vein of C57BL/6 mouse. Twenty days later, the lungs were removed, and surface-visible tumors were counted in the absence and presence of butein treatment. The melanoma metastasis area of lung surface was black and background is dark red. White area was quantified using ImageJ software. The quantitative of lung metastasis colony was shown in b. Corresponding bar graph expressed as percentage of vehicle (n = 8)