In other drug-sensitive cell lines [breast MDA-MB-231-pcDNA3, colon HCT116 (p53+/+), glioblastoma U87MG] and their MDR counterparts [MDA-MB-231-BCRP clone 23, HCT116 (p53−/−) and U87MG.ΔEGFR], AIF displayed moderate effects with IC50 values of 42.4–46.7 and 36.4–65.6 μM, respectively. Here, TP53 is linked to glioblastoma.