GPX4 and sarcoma: To explore the effect of GPX4 expression on the survival of patients with tumors, we extracted data from the TCGA database on GPX4 associated with sarcoma and found that high GPX4 expression had no significant effect on the survival of patients with sarcoma and that the difference between GPX4 expression in tumors and that in paraneoplastic tissues was not significant (Fig. 4j, k).