CDH1 and neoplasm: Retroviral‐mediated transduction of IL‐24 in DU‐145 cells, resulted in the upregulation of epithelial markers (E‐cadherin) and a decrease in the expression of mesenchymal markers (fibronectin, α‐SMA, and smad7), providing additional evidence for reduced tumor cell aggressiveness following IL‐24 treatment.