Hemokinins modulate endothelium function and promote angiogenesis through neurokinin-1 receptor

The International Journal of Biochemistry & Cell Biology
Hongjin SongRui Wang

Abstract

Substance P as a member of tachykinin family plays an important role in angiogenesis. Hemokinins (HKs) have been identified as new members of substance P-like peptides of tachykinin family. However, the effects of HKs on endothelial cells and angiogenesis have not been studied. For the first time, here we demonstrated that r/mHK-1, hHK-1 and hHK(4-11) dose-dependently stimulated the proliferation, migration, adhesion and tube formation of freshly isolated human umbilical vein endothelial cells (HUVECs), and further exhibited in vivo angiogenic effects in chick embryo chorioallantoic membrane model. The angiogenic effects of HKs were inhibited by the selective antagonist of neurokinin-1 rather than neurokinin-2 receptor. Mechanistically, HKs activated ERK1/2 phosphorylation, stimulated nitric oxide production, and upregulated the expression of endothelial nitric oxide synthase (eNOS) and vascular endothelial growth factor (VEGF) in HUVECs. Taken together, our data suggest that HKs emerge as pivotal endogenous regulators of angiogenesis and represent potential targets for the intervention of angiogenesis in different pathological conditions given their specific peripheral distribution.

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Citations

Aug 13, 2013·Peptides·Miguel Muñoz, Rafael Coveñas
Feb 26, 2013·British Journal of Clinical Pharmacology·Erika PintérJános Szolcsányi
Aug 3, 2019·Journal of Physiology and Biochemistry·Hossein JavidSeyed Isaac Hashemy

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