TGFB2 and glioblastoma: The TGFB2 mRNA levels in GBM patients were higher than those of DIPG patients; the mean expression level for TGFB2 mRNA even in the 11-patient TGFB2high DIPG subset was 6.19 ± 0.24 (median, range = 5.81, 5.23–7.63), which is lower than the TGFB2 mRNA levels of TGFB2low GBM patients (10.4 ± 0.1; median, range = 10.5, 8.2–12).