We first tested the mRNA expression of TASL in the human brain astrocyte line SVGp12, human LGG cell line HS683, and GBM cell lines U87 and U118 using qRT-PCR, and found that TASL expression was considerably higher in glioma cells than in normal astrocytes, and TASL mRNA expression was significantly higher in GBM cells than in LGG cells (P < 0.05, Fig. 8A). This evidence concerns the gene TASL and glioblastoma.