Neuropilin-1 (Nrp1) is a multifunctional transmembrane protein that is abundantly expressed on the surface of various cell types, where it binds to class 3 semaphorins (Sema3), heparan sulfate, and vascular endothelial growth factors (VEGFs). Nrp1 plays a crucial role in angiogenesis and vascular permeability regulation, particularly in the VEGF si...