Which of these genes promote epithelial-mesenchymal transition and are important metastatic genes in epithelial tumors?

Metasis oncogenes are SNAIL and TWIST, which encode transcription factors whose primary function is to promote epithelial-to-mesenchymal transition (EMT).  In EMT, carcinoma cells downregulate certain epithelial markers (e.g., E-cadherin) and upregulate certain mesenchymal markers  (e.g.,  vimentin, smooth muscle actin). EMT has been documented mainly in breast carcinoma. Reference-Robbins BASIC PATHOLOGY 10th edition pg-223