STAG1 and neoplasm: As shown in Figure 4B,D, administration of SA1 exosomes led to a marked reduction in tumor volume from 1506 ± 223 mm3 in the model group to 478 ± 7 mm3 in the SA1 exosome group, and reduced tumor weight from 1.97 ± 0.16 g to 0.58 ± 0.11 g.