ICAM1 and ganglioneuroma: ICAM1 neutralization significantly inhibited the cell deaths of WT and GFP-DU145 cells and WT and GFP-PC3 cells; however, the survival rates of GN-DU145 and GN-PC3 cells were not different between the groups treated with the ICAM1 antibody and the control IgG (Fig. 4 A).