SLC2A1 and glioblastoma: In order to further understand the relevance of elevated GLUT3 in GBM biology, we analyzed the Ivy Glioblastoma Atlas Project database and found GLUT3 (SLC2A3), but not GLUT1 (SLC2A1), expression was significantly elevated at the leading edge of GBMs (Figure 1 a,b) [35].