PARK7 and esophageal squamous cell carcinoma: The TCGA database was used to analyze the mRNA expression profiles of DJ-1/PARK7 in normal esophageal tissues (n = 10), ESCC tissues (n = 81), and EA tissues (n = 78), and it was found that the expression of DJ-1/PARK7 was significantly upregulated in ESCC tissues (Fig. S2A).