ChenThe interplay between fibroblast‐like synovial and vascular endothelial cells leads to angiogenesis via the sphingosine‐1‐phosphate‐induced RhoA‐F ‐Actin and Ras‐Erk1 /2 pathways and the intervention of geniposide

2021 ◽  
Author(s):  
Ran Deng ◽  
Yanhong Bu ◽  
Feng Li ◽  
Hong Wu ◽  
Yan Wang ◽  
...  
Keyword(s):  
Endothelial Cells ◽  
Vascular Endothelial Cells ◽  
Vascular Endothelial ◽  
Sphingosine 1 Phosphate

scholarly journals Mouse SPNS2 Functions as a Sphingosine-1-Phosphate Transporter in Vascular Endothelial Cells

PLoS ONE ◽  
2012 ◽  
Vol 7 (6) ◽  
pp. e38941 ◽  
Author(s):  
Yu Hisano ◽  
Naoki Kobayashi ◽  
Akihito Yamaguchi ◽  
Tsuyoshi Nishi
Keyword(s):  
Endothelial Cells ◽  
Vascular Endothelial Cells ◽  
Phosphate Transporter ◽  
Vascular Endothelial ◽  
Sphingosine 1 Phosphate

scholarly journals Gi-mediated Cas Tyrosine Phosphorylation in Vascular Endothelial Cells Stimulated with Sphingosine 1-Phosphate

2000 ◽  
Vol 276 (7) ◽  
pp. 5274-5280 ◽  
Author(s):  
Tsukasa Ohmori ◽  
Yutaka Yatomi ◽  
Hirotaka Okamoto ◽  
Yoshie Miura ◽  
Ge Rile ◽  
...  
Keyword(s):  
Endothelial Cells ◽  
Tyrosine Phosphorylation ◽  
Vascular Endothelial Cells ◽  
Vascular Endothelial ◽  
Sphingosine 1 Phosphate

scholarly journals A Novel Sphingosine-1-Phosphate Receptor 1 Antagonist Prevents the Proliferation and Relaxation of Vascular Endothelial Cells by Sphingosine-1-Phosphate

2010 ◽  
Vol 33 (9) ◽  
pp. 1500-1505 ◽  
Author(s):  
Kiyoaki Yonesu ◽  
Tsuyoshi Nakamura ◽  
Yumiko Mizuno ◽  
Chie Suzuki ◽  
Takahiro Nagayama ◽  
...  
Keyword(s):  
Endothelial Cells ◽  
Vascular Endothelial Cells ◽  
Vascular Endothelial ◽  
Sphingosine 1 Phosphate

scholarly journals Sphingosine 1-Phosphate and Activation of Endothelial Nitric-oxide Synthase

2001 ◽  
Vol 276 (15) ◽  
pp. 12420-12426 ◽  
Author(s):  
Junsuke Igarashi ◽  
Sylvie G. Bernier ◽  
Thomas Michel
Keyword(s):  
Nitric Oxide ◽  
Endothelial Cells ◽  
Enzyme Activity ◽  
Vascular Endothelial Cells ◽  
Vascular Endothelial ◽  
Enos Phosphorylation ◽  
Edg Receptors ◽  
Sphingosine 1 Phosphate ◽  
Oxide Synthase ◽  
G Protein Coupled

Sphingosine 1-phosphate (S1P) is a platelet-derived sphingolipid that elicits numerous biological responses in endothelial cells mediated by a family of G protein-coupled EDG receptors. Stimulation of EDG receptors by S1P has been shown to activate the endothelial isoform of nitric-oxide synthase (eNOS) in heterologous expression systems (Igarashi, J., and Michel, T. (2000)J. Biol. Chem.275, 32363–32370). However, the signaling pathways that modulate eNOS regulation by S1P/EDG in vascular endothelial cells remain less well understood. We now report that S1P treatment of bovine aortic endothelial cells (BAEC) acutely increases eNOS enzyme activity; the EC50for S1P activation of eNOS is ∼10 nm. The magnitude of eNOS activation by S1P in BAEC is equivalent to that elicited by the agonist bradykinin. S1P treatment activates Akt, a protein kinase implicated in phosphorylation of eNOS. S1P treatment of BAEC leads to eNOS phosphorylation at Ser1179, a residue phosphorylated by Akt; an eNOS mutant in which this Akt phosphorylation site is inactivated shows attenuated S1P-induced eNOS activation. S1P-induced activation both of Akt and of eNOS is inhibited by pertussis toxin, by the phosphoinositide 3-kinase inhibitor wortmannin, and by the intracellular calcium chelator BAPTA (1,2-bis(aminophenoxy)ethane-N,N,N′,N′-tetraacetic acid). By contrast to S1P, activation of G protein-coupled bradykinin B2 receptors neither activates kinase Akt nor promotes Ser1179eNOS phosphorylation despite robustly activating eNOS enzyme activity. Understanding the differential regulation of protein kinase pathways by S1P and bradykinin may lead to the identification of new points for eNOS regulation in vascular endothelial cells.

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