This is consistent with previous studies which suggest that the phosphorylation of proteins correlates with the mesenchymal phenotype of tumor cells.7,24 Two of the widely studied markers of epithelial and mesenchymal phenotypes are E-cadherin and β-catenin, respectively.4 Flow cytometry results reveal that adherent cells express more E-cadherin, while suspended cells express more phosphorylated β-catenin. This evidence concerns the gene CDH1 and neoplasm.