Induction of Apoptosis by a Synergistic Lignan Composition from Cedrus deodara in Human Cancer Cells

被引:18
|
作者
Sharma, Parduman R. [1 ]
Shanmugavel, M. [1 ]
Saxena, Ajit K. [1 ]
Qazi, Ghulam N. [1 ]
机构
[1] Indian Inst Integrat Med, Council Sci & Ind Res, Div Pharmacol, Jammu 180016, India
关键词
lignan composition; Cedrus deodara; apoptosis; Molt-4; HL-60; PC-3; A549; SEM; TEM; Drosophila;
D O I
10.1002/ptr.2511
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
AP9-cd, a synergistic lignan mixture from Cedrus deodara (Pinaceae) consisting of (-)-wikstromal, (-)-matairesinol and dibenzyl butyrolactol, depicted cytotoxic effects against numerous human cancer cell lines reported previously. The aim of this study was to investigate the mechanism of cell death in human cancer cells. The viability, morphological and ultrastructural changes in Molt-4 cells were investigated. Using the trypan blue exclusion assay, we demonstrated that AP9-cd significantly reduced the viability of Molt-4 cells in a time- and dose-dependent manner. Apoptotic assays using light microscopy revealed that this agent induced Molt-4 cell apoptosis at varied concentrations. The treatment causes a loss in cell viability by activating the apoptotic process as identified by light and electron microscopy. The morphological changes of intracellular organelles in Molt-4 cells treated with 30 mu g/ml of AP9-cd revealed the disruption of mitochondrial cristae. Other features included the vacuolization, chromatin condensation and formation of micronuclei. Surface ultrastructural studies of four different tumor cell lines (Molt-4, HL-60, PC-3 and A-549) treated with AP9-cd depicted loss of surface projections, condensation and formation of apoptotic bodies. AP9-cd treatment to transgenic fruit fly, Drosophila, carrying human adenomatous polpyposis coli (hAPC) gene enhanced eye phenotypes and therefore may inhibit Wnt/Wg pathway which is important in the aetiology of a number of human cancers. Copyright (C) 2008 John Wiley & Sons, Ltd.
引用
收藏
页码:1587 / 1594
页数:8
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