PARK7 and esophageal squamous cell carcinoma: Kaplan–Meier survival analysis revealed that high DJ-1 expression in serum after radiotherapy predicted poor overall survival (OS) in patients with ESCC (Fig. S8C, n = 46, p = 0.0074), while no significant difference was observed in disease free survival (DFS) between the two groups of ESCC patients (Fig. S8D, n = 46, p = 0.1228).