A synthetic humanized camelid single-domain antibody targeting VEGF exhibits in vitro antiangiogenic effects. (PubMed, Int Immunopharmacol)
Functional assays, including competitive and conventional ELISAs, demonstrated that NbH1 effectively disrupts the interaction between VEGF and its main receptor VEGFR2, and with bevacizumab, making it particularly promising for therapeutic applications. This novel molecule demonstrates cross-species activity and does not interfere with VEGFR1 binding. Furthermore, NbH1 inhibits VEGF-induced phosphorylation of VEGFR2 in human endothelial cells and hampers their sprouting in a 3D spheroid angiogenesis assay, highlighting its potential for treating pathological angiogenesis in vivo.