期刊
JOURNAL OF ETHNOPHARMACOLOGY
卷 141, 期 1, 页码 178-182出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.jep.2012.02.016
关键词
Antitumor; Immunomodulatory; Fatty acid; Apoptosis
资金
- Science Technology Department of Zhejiang Province [2011C22004]
- Hangzhou Science and Technology Bureau [20051323B46]
- Zhejiang Provincial Administration of Traditional Chinese Medicine [2009CA011]
Ethnopharmacological relevance: Eupolyphaga sinensis Walker popularly known as preferred drug to regulate blood flow are traditionally used in folk medicine in the treatment of ecchymoma, posttraumatic wound, hepatic fibrosis and tumor. Aim of the study: To characterize chemical compositions and to evaluate the antitumor and immunomodulatory of Eupolyphaga sinensis Walker ethanol extract (ESEE) in hepatocarcinoma H-22 bearing mice. Materials and methods: ESEE was obtained by ethanol reflux extraction and analyzed by gas chromatography-mass spectrometry (GC-MS) after methylation. ICR mice were treated with ESEE for 14 consecutive days at doses of 31 mg/kg (low-dose), 62 mg/kg (mid-dose) and 124 mg/kg (high-dose) after H-22 tumor cells were implanted. At the end of the experiments, the tumor weight of each mouse was measured. Levels of serum TNF-alpha and IFN-gamma was assayed by ELISA. Protein expressions of Bax, Bcl-2 and caspases-3 were detected by immunohistochemistry. Results: Chemical analysis revealed the presence of 6 components that account for 97.55% of fatty acids, indicating the occurrence of saturated and polyunsaturated fatty acids. Oral administration of ESEE could inhibit tumor growth, promote Th1 type cytokine productions (TNF-alpha and IFN-gamma) and induce apoptosis of hepatocarcinoma via increase of Bax/Bcl-2 ratio and activation of caspases-3. Oral administration of ESEE in a dosage of 6.2 g/kg did not lead to toxic effects in mice. Conclusions: ESEE was effective in inhibiting tumor growth in vivo and could also serve as immunoadjuvant for tumor therapy. (C) 2012 Elsevier Ireland Ltd. All rights reserved.
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