KDR and neoplasm: Nishimura et al. targeted tumor microvasculature using antivascular endothelial growth factor receptor 2 (VEGFR-2) mAb, DC101 conjugated to IR700.82 In this study, NIR-PIT did not show phototoxicity on NCI-N87 human gastric cancer cells in vitro because of the absence of expression of VEGFR-2 in these cancer cells.