Following the transfection of the WWOX gene, methyl thiazolyl tetrazolium cell viability and Transwell® invasion assays, and western blot analysis were performed to detect changes in the proliferative capability and invasive capacity of ovarian cancer stem cells, as well as the expression of EMT markers and regulatory factors, Elf5 and Snail. The gene discussed is SNAI1; the disease is ovarian cancer.