ANXA5 and neoplasm: The authors first injected biotinylated Annexin V in tumour-bearing rats where tumour apoptosis was induced by photodynamic therapy (PDT) using phthalocyanine dyes as photosensitizers and red light, followed 2 h later by an avidine chase and yet another 2 h later by injection of 64Cu-DOTA-biotin-SAv.