PMID: 11931706Apr 5, 2002Paper

Effect of safrole oxide on vascular endothelial cell growth and apoptosis induced by deprivation of fibroblast growth factor

Acta Pharmacologica Sinica
Junying MiaoChun-Qing Du

Abstract

To investigate effect of safrole oxide on cell growth and apoptosis induced by deprivation of survival factors (fibroblast growth factors, aFGF and bFGF) in vascular endothelial cells (VEC). Morphological changes were observed by light microscopy. Cell growth was determined by MTT (3-[4, 5-dimethylthiazol-2-yl]-2, 5-diphenyltetrazolium) method. DNA fragmentation was analyzed by agarose gel electrophoresis and fluorescence microscopy. Cell cycle distribution was analyzed by flow cytometry (FCM). The cells deprived of FGF were exposed to safrole oxide 5-25 mg/L for 24 h. Cells spreading and growth were promoted (P<0.01), detachment and DNA fragmentation of these cells were suppressed (P<0.01), safrole oxide 10 mg/L had no obvious effect on cell cycle distribution (P>0.05). When the cells were treated with safrole oxide 50-100 mg/L, detachment and DNA fragmentation of VEC were promoted (P<0.01). The cell cycle was blocked at G2-M phase by safrole oxide 100 mg/L. Safrole oxide 10 mg/L inhibited, but 100 mg/L promoted apoptosis of VEC. Safrole oxide might be an important compound that affects VEC growth and apoptosis.

Related Concepts

Related Feeds

Apoptosis

Apoptosis is a specific process that leads to programmed cell death through the activation of an evolutionary conserved intracellular pathway leading to pathognomic cellular changes distinct from cellular necrosis