[HTML][HTML] Sphingosine 1-phosphate protects human umbilical vein endothelial cells from serum-deprived apoptosis by nitric oxide production

YG Kwon, JK Min, KM Kim, DJ Lee, TR Billiar… - Journal of Biological …, 2001 - ASBMB
Sphingosine 1-phosphate (S1P) can prevent endothelial cell apoptosis. We investigated the
molecular mechanisms and signaling pathways by which S1P protects endothelial cells from
serum deprivation-induced apoptosis. We show here that human umbilical vein endothelial
cells (HUVECs) undergo apoptosis associated with increased DEVDase activity, caspase-3
activation, cytochromec release, and DNA fragmentation after 24 h of serum deprivation.
These apoptotic markers were suppressed by the addition of S1P, the NO donorS-nitroso-N …