Differentiating and Apoptotic Dose-Dependent Effects in (-)-alpha-Bisabolol-Treated Human Endothelial Cells

作者：Magnelli Lucia; Caldini Riccardo; Schiavone Nicola; Suzuki Hisanori; Chevanne Marta^*

来源：Journal of Natural Products, 2010, 73(4): 523-526.

DOI：10.1021/np9003933

The effect on angiogenesis of (-)-alpha-bisabolol [(-)-6-methyl-2-(4-methyl-3-cyclohexen-1-y1)-5-hepten-2-ol] (1), a widely distributed plant sesquiterpene alcohol, was investigated for the first time. Human endothelial cells treated with 1 were analyzed for their ability to differentiate and organize in microvessels and for their sensitivity to this compound in terms of cytotoxicity and cell growth inhibition. Within 24 h of the treatment with 5 mu M 1, cells underwent massive death. Apoptosis induction was responsible for cytotoxicity triggered by 1 as revealed by the release of cytochrome c from the mitochondria, reduction of the Bcl-2/Bax ratio, and caspase 3 activation. At a lower, non-apoptotic concentration (0.25 mu M), 1 showed a differentiating effect resulting in growth inhibition, invasiveness reduction, and tubule stabilization.

• 出版日期2010-4