Title : Simvastatin potentiates tumor necrosis factor alpha-mediated apoptosis of human vascular endothelial cells via the inhibition of the geranylgeranylation of RhoA.

Pub. Date : 2006 Sep 5

PMID : 16740276






8 Functional Relationships(s)
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1 Here we demonstrate that the HMG-CoA reductase inhibitor simvastatin potentiates TNFalpha-mediated apoptosis and TNFalpha signaling in human umbilical vein endothelial cells (HUVECs). Simvastatin tumor necrosis factor Homo sapiens
2 Here we demonstrate that the HMG-CoA reductase inhibitor simvastatin potentiates TNFalpha-mediated apoptosis and TNFalpha signaling in human umbilical vein endothelial cells (HUVECs). Simvastatin tumor necrosis factor Homo sapiens
3 While 2.5 microM simvastatin or 40 ng/ml TNFalpha alone had only a small effect on apoptosis in HUVECs, co-incubation with simvastatin and TNFalpha markedly increased apoptosis in a time- and dose-dependent manner as measured by FACS analysis of propidium iodide-stained cells. Simvastatin tumor necrosis factor Homo sapiens
4 While 2.5 microM simvastatin or 40 ng/ml TNFalpha alone had only a small effect on apoptosis in HUVECs, co-incubation with simvastatin and TNFalpha markedly increased apoptosis in a time- and dose-dependent manner as measured by FACS analysis of propidium iodide-stained cells. Simvastatin tumor necrosis factor Homo sapiens
5 Furthermore, simvastatin increased the expression of the TNFalpha type I receptor (TNFalphaRI) with a dose dependence and a dependence on geranylgeranylation similar to that demonstrated for the potentiation of TNFalpha-mediated apoptosis. Simvastatin tumor necrosis factor Homo sapiens
6 Furthermore, simvastatin increased the expression of the TNFalpha type I receptor (TNFalphaRI) with a dose dependence and a dependence on geranylgeranylation similar to that demonstrated for the potentiation of TNFalpha-mediated apoptosis. Simvastatin tumor necrosis factor Homo sapiens
7 Simvastatin also potentiated TNFalpha signaling as determined by increased TNFalpha-mediated E-selectin expression. Simvastatin tumor necrosis factor Homo sapiens
8 Simvastatin also potentiated TNFalpha signaling as determined by increased TNFalpha-mediated E-selectin expression. Simvastatin tumor necrosis factor Homo sapiens