Furthermore, to assess the generalizability of this study, we performed additional experiments with DTP cells using four ALK + NSCLC cells (three types of SNU-2535 cells transfected with control, FGF2, or FGFR1 plus FGF2 overexpressing lentiviral vector (lenti-control, FGF2high, FGFR1high+FGF2high SNU-2535)), and NCI-H3122 cells). The gene discussed is FGF2; the disease is non-small cell lung carcinoma.