ELF4 and glioblastoma: Expression of ELF4 and Nanog mRNA was also significantly elevated in GBM compared to nonmalignant brain samples from 1.06 (Min–Max: 0.51–3.52) to 2.58 (Min–Max: 0.33–33.86) and 0.98 (Min–Max: 0.21–6.24) to 5.76 (Min–Max: 0.03–1352), respectively.