Figure 4.
Inhibition of BRAFV600E in induced tumors led to tumor outgrowth inhibition. Melanomas were induced by 4-hydroxytamoxifen application on the flank of 4–10-week-old C57BL/6J Tyr::CreERT2;PtenLoxP/LoxP;BrafCA/+ mice or DNA tattoo administration of the pVAX1/mTyr-Cre construct on the flank of PtenLoxP/LoxP;BrafCA/+ mice (n = 5 per group). When the average tumor size was 25 mm2, tumor-bearing mice were placed on PLX4720 chow. Tumor outgrowth was monitored over time by digital photography, and tumor size was plotted against time from tumor induction for PLX4720-treated and control chow mock-treated animals. Data are expressed as the means ± SD.