TF and breast cancer: We and our collaborators along with other groups have identified TF as an angiogenesis-specific receptor on VEGF-stimulated angiogenic microvascular endothelial models in vitro as well as in vivo in angiogenic VECs (the inner layer) of the pathological neovasculature of endometriosis, age-related macular degeneration (AMD) and solid cancers, including melanoma27,28, lung cancer29 and breast cancer29, and from tumor xenografts in mice and breast cancer tissues from patients14,16.