In another in vitro study, rosmarinic acid (RA) facilitated epithelial–mesenchymal transition (EMT) by upregulating the expression of the epithelial marker E-cadherin while reducing the expression of mesenchymal markers associated with aggressive tumor features, such as N-cadherin, Snail, Twist, or vimentin. The gene discussed is SNAI1; the disease is neoplasm.