Figure 2From: Differentiation-inducing and anti-proliferative activities of lupeol on canine melanoma cellsAntiproliferative activity against 4 canine melanoma cells. Canine melanoma cells (1 × 104 cells) were treated without (white bar) or with 10 μM lupeol (gray bar) for 4 days, and the viable cell number was subsequently counted by the Trypan blue exclusion method. * p < 0.05, ** p < 0.01 vs untreated cells (n = 3).Back to article page