Taspine isolated from Radix et Rhizoma Leonticis inhibits growth of human umbilical vein endothelial cell (HUVEC) by inducing its apoptosis

被引：26
作者：
Zhang, Yanmin [1 ]
He, Langchong [1 ]
Zhou, Yali [1 ]
机构：
[1] Xian Jiaotong Univ, Sch Med, Xian 710061, Shaanxi Prov, Peoples R China
来源：
PHYTOMEDICINE | 2008年 / 15卷 / 1-2期
关键词：
taspine; human umbilical vein endothelial cell; apoptosis; protein expression;
D O I：
10.1016/j.phymed.2007.09.021
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
The present study was to evaluate the effects of taspine isolated from Radix et Rhizoma Leonticsi on the growth and apoptosis of human umbilical vein endothelial cell (HUVEC) line by MTT and flow cytometer, respectively. At the same time, a series of changes were observed in HUVEC treated by taspine, including microstructure, protein expression of bax, bcl-2 and VEGF. The change of microstructure was observed by transmission electron microscope (TEM). The protein expression of bax and bcl-2 was detected by immunohistochemistry (IHC), and VEGF protein secreted was determined by enzyme-linked immunosorbent assay (ELISA). The results showed taspine could inhibit growth and induce apoptosis of HUVEC in a dose-dependent manner. Cell cycle was significantly stopped at the S phase. Under electronic microscope, the morphology of HUVEC treated with taspine showed nuclear karyopycnosis, chromatin agglutination and typical apoptotic body. Bcl-2 and VEGF expressions were decreased and bax expression was increased. All these results demonstrate that taspine has an inhibitory effect on growth of HUVEC and can induce its apoptosis. (C) 2007 Elsevier GmbH. All rights reserved.
引用
收藏
页码：112 / 119
页数：8
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