A carcinoma that originates usually from cells on the surface of the middle and lower third of the ESOPHAGUS. Tumor cells exhibit typical squamous morphology and form large polypoid lesions. Mutations in RNF6, LZTS1, TGFBR2, DEC1, and WWOX1 genes are associated with this cancer.
CircFAT1 expression levels were significantly lower in tumor tissue than in adjacent non-tumorous mucosal tissue (p = 0.01). The expression of miR-548g was upregulated by the downregulation of circFAT1. The overexpression of miR-548g also promoted ESCC cell migration and invasion. Recurrence-free survival (p = 0.02) and cancer-specific survival (p = 0.04) rates were significantly higher in patients with elevated circFAT1 expression levels.
Causality:
Yes
Causal Description:
The downregulation of circFAT1 expression promoted ESCC cell migration and invasive ability, but not proliferation.