SNAI1 and gastric cancer: However, hsa_circ_0023642, highly expressed in GC tissues, not only acts as a molecular sponge for miR-223-3p, but also regulates the expression of Snail-associated E-cadherin, N-cadherin and Vimentin involved in the process of EMT, promoting cell proliferation, invasion, and migration, and showing a highly positive correlation with the malignant progression of GC [24,25].