Given the fact that NQO1 is similarly overexpressed in most solid tumors of breast [V64] [133], lung [134], prostate [135] colon [136], pancreatic [100], and brain cancers [137], and the prognostic and therapeutic importance of NQO1 in oncology, probes to detect its cellular activity have been widely explored [138,139]. This evidence concerns the gene NQO1 and brain cancer.