POFUT1 and esophageal squamous cell carcinoma: Figures 2A, B showed that the levels of CETN2 and POFUT1 autoantibodies in the cohort were increased significantly in the patients with HGIN (p<0.001) and further increased in the patients with early and advanced ESCC(p<0.001). Figure 2C showed the standard curves used to quantify autoantibodies to CETN2 and POFUT1.