FGFR4 and glioblastoma: In our study, FGFR4 was not detectable by western blot in primary patient-derived GBM cells, and analysis of GBM patient data in the TCGA dataset showed heterogeneous, but overall low expression of FGFR4. Moreover, we could not find differences in survival when stratifying patients for FGFR4 high or low expression.