In western blotting analysis, si-FTL-2 (targeting sequence: 5 ́- GGCGAGTATCTCTTCGAAA-3 ́) showed the best interference efficiency in A172 GBM cells (si-control group vs. si-FTL-2 group: P<0.01) (Fig 3A); therefore, this sequence was selected to knockdown the endogenous FTL in GBM cells. Here, FTL is linked to glioblastoma.