The percentage of prominin-1 signal per pseudo-palisade area (R.O.I = 10) was significantly higher in the Eker rat cortexes compared to all GBM patients (P1, p = 0.0028; P3, p = 0.0005; P4, p = 0.0028; Student t-test), except for one individual (P2, p = 0.55) who had been intolerant to chemotherapeutic adjuvant intervention (Figure 2E). Here, PROM1 is linked to glioblastoma.