To further characterize the CEC cell type, we compared the CK and vimentin signals from the genomically altered CTCs and non-altered endothelial-like cells in the liquid biopsies of the cancer patients described above, to the endothelial cell lines (HPAECs and HUVEC) and to endothelial cells previously identified in patients with myocardial infarction (MI) [20]. The gene discussed is VIM; the disease is cancer.