conjugation of photosensitizing agent (5-(4-carboxyphenyl)-10,15,20-triphenyl-chlorin (TPC) via a spacer 6-aminohexanoic acid (Ahx) to a heptapeptide (ATWLPPR); specific for the VEGF receptor neuropilin-1 (NRP-1)
Source
Int J Radiat Oncol Biol Phys. 2009 Sep 1;75(1); 244-52