EG01377 has antiangiogenic, antimigratory, and antitumor effects.EG01377 is a neuropilin-1 (NRP1) antagonist, with a Kd of 1.32 μM for NRP1-b1, and IC50s of both 609 nM for NRP1-a1 and NRP1-b1, but shows no effect on NRP2.

NRP1-a1:609 nM , NRP1-b1:(kd)1.32 μM , NRP1-b1:609 nM

EG01377 inhibits NRP1 in DU145/cells.Ad.NRP1 cells (IC50, 1.6 μM). EG01377 (3, 10, and 30 μM) inhibits VEGF-A stimulated tyrosine phosphorylation of VEGF-R2/KDR. EG01377 (30 μM) also significantly reduces HUVEC cell migration in response to VEGFA, and reduces VEGF-induced angiogenesis. Moreover, EG01377 (30 μM) in combination with VEGFA causes reduction in A375P spheroid outgrowth. EG01377 blocks the production of TGFβ by Nrp1+ Tregs in the presence of tumor cell-derived factors.EG01377 is a neuropilin-1 (NRP1) antagonist, with a Kd of 1.32 μM for NRP1-b1, and IC50s of both 609 nM for NRP1-a1 and NRP1-b1, but shows no effect on NRP2.