Figure 1. The MEK inhibitor trametinib suppresses KRAS mutant pancreatic cancer cells. (A) The structure of the MEK inhibitor trametinib. (B) Fitting curve of cytostatic responses illustrated a decreasing concentration gradient of trametinib in 7 KRAS mutant pancreatic cancer cell lines (AsPC-1, MIA PaCa-2, PANC-1, HuP-T4, HuP-T3, PSN1, and CFPAC-1).