After applying GAL to fibrosarcoma cells, it was found that it can be used as a ferroptosis inhibitor, which increases the viability of HT1080 cells with an RSL3 inhibitor, reduces the level of ROS and MDA lipids, and increases the expression of PTGS2 and glutathione peroxidase 4 (GPX4) mRNA. Here, GPX4 is linked to fibrosarcoma.