Our study reported similar findings, which demonstrated that using a panel of six TAAs (i.e., BMI-1, PRDX6, NY-ESO-1, p53, HSP70, and MMP-7) could distinguish patients with early ESCC from normal controls, with a sensitivity/specificity of 45%/95% [21]. This evidence concerns the gene PRDX6 and esophageal squamous cell carcinoma.