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Abstract Title:

Radical Scavenging and Antiproliferative Effects of Cordycepin-Rich Ethanol Extract from Brown Rice-Cultivated Cordyceps militaris (Ascomycetes) Mycelium on Breast Cancer Cell Lines.

Abstract Source:

Int J Med Mushrooms. 2019 ;21(7):657-669. PMID: 31679300

Abstract Author(s):

Han-Chiang Wu, Shou-Tung Chen, Jui-Chih Chang, Ting-Yung Hsu, Chi-Chia Cheng, Huei-Shin Chang, Chin-San Liu, Yao-Chung Wu, Zeng-Chin Liang

Article Affiliation:

Han-Chiang Wu

Abstract:

The yield and efficacy of bioactive compounds from Cordyceps militaris fruiting bodies and its fermented grains usually vary with the strain used. In this study, we compared the antiproliferative, apoptotic, and antioxidative properties of ethanolic extracts of fruiting bodies and solid-stated fermented rice (FRE) from two wild-type strains of C. militaris applied to human breast cancer cell lines. We observed that FRE of the Zhangzhoustrain (FRE-Z) produced a high level of cordycepin and exhibited comprehensive in vitro antioxidant activity against the oxidation of 2,2-diphenyl-1-picrylhydrazyl, superoxide, and hydroxyl radicals and low-density lipoprotein. Only FRE-Z exhibited dose-dependent inhibition of cell proliferation inMCF-7 (0.7 mg/mL) and MDA-MB-231 cells (1 mg/mL) after culturing for 24 h. The antiproliferative effects of FRE-Z were associated with an early stage of apoptosis induction at 4 h of treatment with 0.5 mg/mL FRE-Z in MCF-7 cells. The antiproliferative effect was determined to occur through p53 activation but not through the release of mitochondrial apoptosis-inducing factor or caspase-9 activation for an initial culture period of 16 h. In addition to a transient increase in cellular antioxidant enzyme, Cu/Zn superoxide dismutase was identified in MCF-7 cells after 2 h of treatment with FRE-Z.Therefore, FRE-Z, which exhibits various dose- and exposure time-dependent activities, has potential application in breast cancer chemoprevention.

Study Type : In Vitro Study

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