IQGAP3 and hepatocellular carcinoma: Consistently, we found that HCC cells transfected with IQGAP3 expressed high IQGAP3 levels and the typical EMT phenotype, including a decrease in the expression of epithelial marker E-cadherin and an increase in expression of mesenchymal markers fibronectin, vimentin, and N-cadherin (Fig. 5a).