Fig. 2From: Carcinoembryonic antigen-targeted photodynamic therapy in colorectal cancer modelsRelation between the tPDT effect (amount of remaining viable cells 1 h after treatment) and antibody conjugate binding (expressed as percentage of the total amount of added antibody conjugate) for the nine different cell lines. Note that in general more binding (more accessible/targetable CEA sites) leads to a greater effect of tPDT (fewer viable cells)Back to article page