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Tetrandrine enhances the anticancer effects of arsenic trioxide in vitro.
MedLine Citation:
PMID:  24548979     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Arsenic trioxide (As2O3), an effective agent to treat leukemia and other solid tumors, is largely limited by its toxicity. QT prolongation, torsades de pointes and sudden death have been implicated in the cardiotoxicity of As2O3. The present study was designed to assess whether the combination of As2O3 and tetrandrine could generate a more powerful anti-cancer effect. 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay was performed for detecting the proliferation of HepG2 and A549 cells treated with tetrandrine and As2O3. Fluorescent microscopy measurements and flow cytometry were carried out to evaluate the apoptosis in HepG2 cells. The cell cycle arrest of HepG2 cells was also determined by flow cytometry. The cell proliferation assay in HepG2 and A549 cells indicated that tetrandrine significantly enhanced the inhibit effect of As2O3. In addition, the following Isobolograms further demonstrated that combining As2O3 with tetrandrine generated synergism action. Tetrandrine also enhanced the apoptosis, necrosis and cell cycle arrest in As2O3-treated HepG2 cells. Our present study showed that tetrandrine can dramatically enhance the anti- cancer effect induced by As2O3. Combining As2O3 with tetrandrine would be a novel strategy to treat cancer in clinical practice.
Authors:
Youran Chen; Peichun Li; Shen Yang; Nannan Tong; Jie Zhang; Xiaoyan Zhao
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-2-19
Journal Detail:
Title:  International journal of clinical pharmacology and therapeutics     Volume:  -     ISSN:  0946-1965     ISO Abbreviation:  Int J Clin Pharmacol Ther     Publication Date:  2014 Feb 
Date Detail:
Created Date:  2014-2-19     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9423309     Medline TA:  Int J Clin Pharmacol Ther     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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