FGFR4 and glioblastoma: To dissect the underlying cell biological mechanisms in an isogenic background, we overexpressed wild-type GFP-tagged FGFR4-388Gly (FGFR4-388Gly-GFP, Fig. 2C) in the endogenously FGFR4low GBM patient-derived cell models BTL1529 and BTL53, and the stable cell line U251-MG.