Podoplanin (PDPN) is a mucin-type transmembrane glycoprotein specific to the lymphatic system. PDPN expression has been found in various human tumors and is considered to be a marker of cancer. | Podoplanin PDPN affects the invasiveness of thyroid carcinoma cells by inducing ezrin radixin and moesin E R M phosphorylation in association with matrix metalloproteinases