Schematic representation of the underlying mechanism of lncRNA CASC7/miR-26/ASPN/TGF-β/Smad axis in endometrial Cancer. Based on literature materials, we speculate that lncRNA CASC7 inhibited miR-26, inhibited ASPN, inhibited TGF-β, and promoted XIAP, to activate SMAD/XIAP pathway, improving the survival rate and invasiveness of endometrial cancer cells.