In French et al. study [27], S6K1 gene is significantly overexpressed in anaplastic oligoastrocytoma compared to normal brain (P = 5.20E − 4) and in anaplastic oligodendroglioma compared to normal brain (P = 0.0045, Figure 2(a)). This evidence concerns the gene RPS6KB1 and anaplastic oligoastrocytoma.