Figure 2: Glioblastoma. (A) Hyperproliferative tumor area expressing Survivin. (B) Id. with high HIF-1a expression. (C) Id. with high Oct4 expression. (D) Id. with high Tcf-4 expression. All DAB. (E) Id. with high CD133/1 expression, immunofluorescence, cryostat sections. (F) Id. with high Musashi-1 expression, immunofluorescence, cryostat sections. Scale bar: 25 μm.