The Mgmt mRNA expression level was considerably downregulated in GBM 14-4-5 and GBM 11-9-2 but not in GBM 101.8 relative to the control, as well as in both GBM 14-4-5 and GBM 11-9-2 compared with GBM 101.8. Here, MGMT is linked to glioblastoma.