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Planta Med 2010; 76(13): 1447-1453
DOI: 10.1055/s-0029-1240902
Pharmacology
Original Papers
© Georg Thieme Verlag KG Stuttgart · New York

Toosendanin Inhibits Hepatocellular Carcinoma Cells by Inducing Mitochondria-dependent Apoptosis

Yujuan He1 [*] , Jin Wang1 [*] , XiaoLing Liu1 , Ling Zhang1 , Gang Yi1 , Chenwei Li1 , Xiao He1 , Peng Wang1 , Hui Jiang1
  • 1Key Laboratory of the Laboratory of Medical Diagnostics, Ministry of Education, Chongqing Key Laboratory, Faculty of Laboratory Medicine, Chongqing Medical University, Chongqing, China
Further Information

Publication History

received Nov. 5, 2009 revised January 11, 2010

accepted January 26, 2010

Publication Date:
15 February 2010 (online)

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Erratum for: Toosendanin Inhibits Hepatocellular Carcinoma Cells by Inducing Mitochondria-dependent ApoptosisPlanta Med 2010; 76(13): E4-E4
DOI: 10.1055/s-0029-1241001

Abstract

Toosendanin, a triterpenoid derivative isolated from Melia toosendan Sieb. et Zucc., possesses different pharmacological effects in humans and an important value in agriculture. As indicated by previous reports, the molecular mechanisms of toosendanin's anticancer effects remain poorly clarified. In this study we used both in vivo and in vitro models to investigate the anti-cancer effects of toosendanin and their possible molecular mechanisms. In the in vitro experiment, human hepatocellular carcinoma cell lines [SMMC-7721(p53+) and Hep3B (p53−)] were coincubated with toosendanin of different concentrations (0.1 ∼ 0.9 µM). Anti-proliferation effects were observed to be in a dose- and time-dependent manner. The IC50 of TSN treated after 72 h for SMMC-7721 and Hep3B cells was 0.5 µM and 0.9 µM, respectively. Results from morphological analysis, annexin V staining, detection of caspases activity, and expressions of Bcl-2, Bax, and Fas indicated that the anticancer effects of toosendanin were associated with its induction of apoptosis via the mitochondria-dependent pathway in p53- and p53+ hepatocellular carcinoma cells. In the in vivo experiment, BALB/c mice were s. c. inoculated with mouse hepatocellular carcinoma H22 cells. Both high-dose (0.69 mg/kg) and low-dose (0.173 mg/kg) toosendanin administrated intraperitoneally resulted in strongly suppressive effects on the tumorigenicity and apoptotic response. Results from the immunohistochemistry for Bcl-2, Bax, as well as for Fas showed that the anticancer effects of toosendanin were induced via apoptosis in a mitochondria-dependent manner, which confirmed the findings in the in vitro experiment. The findings above demonstrate that toosendanin possesses strong anticancer effects in vivo and in vitro via inducing mitochondria-dependent apoptosis in hepatocellular carcinoma cells.

Key words

Melia toosendan Sieb. et Zucc. - Meliaceae - toosendanin - anticancer effects - apoptosis - hepatocellular carcinoma

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1 Yujuan He and Jin Wang contributed equally to the work.

Dr. Yujuan He

Faculty of Laboratory Medicine
Chongqing Medical University

1# Yixueyuan Road

400016 Chongqing

China

Phone: + 86 23 68 48 52 16

Fax: + 86 23 68 48 50 05

Email: yjhemail@126.com

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