Figure 5.
MTOR-based combination therapies. (A) The indicated human and murine cell lines were treated with INK-128, MK-2206, GDC-0941 or PD-325901, or in combinations thereof as indicated. After 72 h, viability was measured in MTT assays. Viability of vehicle-treated control cells was arbitrarily set to 1. (B) Primary human PDAC 3D cultures B20 and B25 were treated with INK-128, MK-2206, GDC-0941 or PD-325901, or in combinations thereof as indicated. After 5 days, ATP levels were measured using a luminometric viability assay. Metabolic activity of untreated cells was arbitrarily set to 1. (C) Synergy score for the combination of the MTOR inhibitor (INK-128) with the AKT (MK-2206), PI3K (GDC-0941) and MEK (PD-325901) inhibitor in 10 human PDAC cell lines, 4 murine PDAC cell lines and 2 primary human PDAC 3D cultures. (D) Comparison of the synergy scores of (C). *P-value of analysis of variance (ANOVA) test <0.05.