To confirm the reproducibility of these molecular features, we used patient-derived YMG62 cells (epithelioid glioblastoma with the BRAF V600E mutation), which exhibited high 11C-methionine uptake by PET imaging (Additional file 1: Fig. S2), and AM-38 glioblastoma cells (BRAF V600E mutant). Here, BRAF is linked to glioblastoma.