With the commercially available HET-1A cell line reportedly lacking characteristics of normal esophageal squamous epithelial cells (24), limited access to primary esophageal squamous cells of sufficient quantity, and the observed similar C5b9 staining of NSE and non-dysplastic BE (Figure 1G), we used the 2 available non-dysplastic BE cell lines as control. Here, ENO2 is linked to Barrett esophagus.