ZEB1 and gastric cancer: CircPVT1 overexpression was reported to be involved in paclitaxel resistance since it was able to regulate the expression of Zinc finger E-box binding homeobox 1 (ZEB1), an inhibitor of E-cadherin proteins, by sponging miR-124-3p, which is usually downregulated in paclitaxel resistant GC cells [53, 75].