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Thromb Haemost 2000; 84(01): 59-64
DOI: 10.1055/s-0037-1613968
Commentary
Schattauer GmbH

Fluvastatin Inhibits Basal and Stimulated Plasminogen Activator Inhibitor 1, but Induces Tissue Type Plasminogen Activator in Cultured Human Endothelial Cells

Luciana Mussoni
1   From the Institute of Pharmacological Sciences, University of Milan, Milan, Italy
,
Cristina Banfi
1   From the Institute of Pharmacological Sciences, University of Milan, Milan, Italy
,
Luigi Sironi
1   From the Institute of Pharmacological Sciences, University of Milan, Milan, Italy
,
Magda Arpaia
1   From the Institute of Pharmacological Sciences, University of Milan, Milan, Italy
,
Elena Tremoli
1   From the Institute of Pharmacological Sciences, University of Milan, Milan, Italy
› Author Affiliations
Further Information

Publication History

Received 28 July 1999

Accepted after resubmission 21 February 2000

Publication Date:
10 December 2017 (online)

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Summary

The effects of fluvastatin, a synthetic hydroxymethylglutaryl coenzyme A (HMG-CoA) inhibitor, on the biosynthesis of tissue plasminogen activator (t-PA) and of its major physiological inhibitor (plasminogen activator inhibitor type 1, PAI-1) were investigated in cultured human umbilical vein endothelial cells (HUVEC). Fluvastatin (0.1 to 2.5 µM), concentration-dependently reduced the release of PAI-1 antigen by unstimulated HUVEC, subsequent to a reduction in PAI-1 steady-state mRNA levels and de novo protein synthesis. In contrast, it increased t-PA secretion.

The drug also reduced PAI-1 antigen secreted in response to 10 µg/ml bacterial lipopolysaccharide (LPS), 100 U/ml tumour necrosis factor α (TNFα) or 0.1 µM phorbol myristate acetate (PMA).

Mevalonate (100 µM), a precursor of isoprenoids, added to cells simultaneously with fluvastatin, suppressed the effect of the drug on PAI-1 both in unstimulated and stimulated cells as well as on t-PA antigen. Among intermediates of the isoprenoid pathway, all-trans-geranylgeraniol (5 µM) but not farnesol (10 µM) prevented the effect of 2.5 µM fluvastatin on PAI-1 antigen, which suggests that the former intermediate of the isoprenoid synthesis is responsible for the observed effects.

Keywords

Plasminogen activator - endothelial cells - 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitor - isoprenoids
 

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