MET and gastrointestinal stromal tumor: Importantly, selective MET and FGFR inhibitors (CR and BGJ398, respectively) used alone have minor or no inhibitory effects on viability and proliferation in IM-sensitive GIST T-1 cells, thus supporting the lack of activation of these RTKs (MET and FGFR) in IM-naive GIST cells (Figure 2A, Figure 3A and Figure 4A).