RPS15A and anaplastic oligoastrocytoma: A quick search of RPS15A gene in GBM revealed that this gene was up-regulated in several types of GBM, including anaplastic oligoastrocytoma [16, 17], glioblastoma [16, 18], oligodendroglioma [19], and diffuse astrocytoma [20] vs. normal tissues (Table 1).