ACSL4 and lung adenocarcinoma: Intriguingly, the Kaplan-Meier survival analysis showed that lung adenocarcinoma patients with low ACSL4 expression had worse progression-free survival (PFS) and overall survival (OS) than those with high ACSL4 expression (Fig. 2c,d), suggesting the potential prognostic values of ACSL4 expression in lung adenocarcinoma.