PECAM1 and esophageal squamous cell carcinoma: Consistent patterns were observed in HAEC, another human arterial endothelial cell line (Fig. S3).When transplanted ZNF750 overexpression ESCC cells into subcutaneous, the tumor had a lower microvessel density compared with the control cells (Fig. 2k, l) and decreased expression of CD31 and FLT1, two markers of angiogenesis phenotypes (Fig. 2m, n).