RETN and cancer: In order to determine the HCC cancer cell adhesion to the endothelium, SK-Hep1 cells were kept as the control or treated with different concentrations of resistin (i.e. 5, 10, 25 and 50 ng/ml) for 4 h and then subsequently marked with the fluorescent cell tracker DiI to test the adhesions of cells to HUVECs.