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Reactive oxygen species-mediated endoplasmic reticulum stress and mitochondrial dysfunction contribute to cirsimaritin-induced apoptosis in human gallbladder carcinoma GBC-SD cells
被引:85
|作者:
Quan, Zhiwei
[1
]
Gu, Jun
[1
]
Dong, Ping
[1
]
Lu, Jianhua
[1
]
Wu, Xiangsong
[2
]
Wu, Wenguang
[2
]
Fei, Xiaozhou
[2
]
Li, Songgang
[1
]
Wang, Yong
[2
]
Wang, Jianwei
[2
]
Liu, Yingbin
[1
]
机构:
[1] Shanghai Jiao Tong Univ, Dept Gen Surg, Xinhua Hosp, Affiliated Sch Med, Shanghai 200092, Peoples R China
[2] Zhejiang Univ, Dept Surg, Affiliated Hosp 2, Sch Med, Hangzhou 310009, Zhejiang, Peoples R China
基金:
中国国家自然科学基金;
关键词:
Gallbladder carcinoma;
Cirsimaritin;
Apoptosis;
Reactive oxygen species;
Endoplasmic reticulum stress;
PROSTATE-CANCER CELLS;
CYCLE ARREST;
ACTIVATION;
PATHWAYS;
FLAVONOIDS;
ROS;
CONSTITUENTS;
ANTIOXIDANT;
CASPASE;
KINASES;
D O I:
10.1016/j.canlet.2010.03.008
中图分类号:
R73 [肿瘤学];
学科分类号:
100214 ;
摘要:
In this study, the anticancer effect of cirsimaritin, a natural flavonoid, against human gallbladder carcinoma cell line GBC-SD and the underlying mechanisms were investigated. Cirsimaritin inhibited the growth of tumor cells and induced mitochondrial apoptosis in GBC-SD cells. In addition, cirsimaritin triggered endoplasmic reticulum (ER) stress and down-regulated the phosphorylation of Akt, while knock-down of CHOP dramatically abrogated the inactivation of Akt and reversed the pro-apoptotic effect of cirsimaritin. Furthermore, cirsimaritin provoked the generation of reactive oxygen species in GBC-SD cells, while the antioxidant N-acetyl cysteine almost completely blocked the activation of ER stress and apoptosis, suggesting cirsimaritin-induced reactive oxygen species is an early event that triggers ER stress mitochondrial apoptotic pathways in GBC-SD cells. (C) 2010 Elsevier Ireland Ltd. All rights reserved.
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页码:252 / 259
页数:8
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