Abstract
Vascular endothelial cells release proteinases that degrade the extracellular matrix (ECM), thus enabling cell migration during angiogenesis and vasculogenesis. Sildenafil citrate stimulates the nitric oxide-cyclic guanosine monophosphate pathway through inhibition of phosphodiesterase type V (PDE5). In this report, we examined the mechanisms underlying sildenafil citrate-induced cell migration using cultured mouse aortic endothelial cells (MAECs). Sildenafil citrate induced migration and proteinase secretion by murine endothelial cells. Sildenafil citrate induced the secretion of matrix metalloproteinase-2 (MMP-2) and MMP-9, which is inhibited by NF-κB inhibitors. Sildenafil citrate also induced the secretion of plasmin, which is inhibited by Pl 3′-kinase inhibitors. It is suggested that sildenafil citrate-induced migrating activity in endothelial cells may be accomplished by increased secretion of proteinases.
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Kim, Y.I., Oh, I.S., Park, S.M. et al. Sildenafil citrate induces migration of mouse aortic endothelial cells and proteinase secretion. Biotechnol. Bioprocess Eng. 11, 402–407 (2006). https://doi.org/10.1007/BF02932306
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DOI: https://doi.org/10.1007/BF02932306