Sequence of the primer of GTSF1 (Supplementary Table 1); Positive clone sequence of GTSF1 overexpression (Supplementary Table 2); HE staining of OS tissue (Supplementary Figure 1); Effect of the solvent DMSO on OS growth in vivo. (A-B) In vivo tumor growth and gross tumor morphology; (C-D) Measurement of tumor volume and weight (Supplementary Figure 2).