Figure 3. Pharmacodynamic effects of GDC-0941 with fulv on MCF-7 tumors.
Mice were pretreated with fulv. Three days later, mice were treated with (A,C) one or (B,C) two doses of GDC-0941 as indicated. Tumors were harvested at 0–48 h after GDC-0941 treatment, and lysates were analyzed by immunoblotting using the indicated antibodies. In (A), phosphoprotein levels quantified by densitometry of immunoblots (normalized to 0 h time point) were plotted against plasma GDC-0941 levels from Fig. 2A. Data are shown as mean of triplicate tumors + SD. FL- full-length; cleav.- cleaved.