ENG and esophageal squamous cell carcinoma: Furthermore, we did not observe that OE of endoglin affects proliferation or migration of ESCC cells, except for 1 cell line where slightly reduced proliferation upon endoglin OE was observed, which corresponds to the data from Wong et al. They also show high variation in endoglin expression between the cell lines they evaluated and the majority of these data are based on OE of endoglin.