We then performed qRT-PCR in SFE-treated ESCC cells (Figure 3A) and ground tumor lumps (Figure 3B) from the previous xenograft tumor assay [9], verifying that the expression of CXCL10, TNFAIP3, INHBA, and PLAU was indeed controlled by SFE in ESCC. This evidence concerns the gene CXCL10 and esophageal squamous cell carcinoma.