Antitumor and antimetastatic activities of chloroform extract of medicinal mushroom Cordyceps taii in mouse models

BMC Complementary and Alternative Medicine

Jian-Hui Xiao²  Jian-Jiang Zhong¹  Yong-Fu Yang³  Gui-You Liang²  Xiao-Jie Zhang²  Ru-Ming Liu² 

[1] State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China;Guizhou Center for Translational Medicine & Laboratory of Cell Engineering, Affiliated Hospital of Zunyi Medical University, Zunyi 563000, China;Department of Pathology, Affiliated Hospital of Zunyi Medical University, Zunyi 563000, China

关键词: Tumor-burdened mouse model;    Antimetastatic activity;    Anticancer active ingredients;    Cordyceps taii;    Chinese traditional medicine;   

Others  :  1220071
DOI  :  10.1186/s12906-015-0762-9

 received in 2015-04-12, accepted in 2015-07-02,  发布年份 2015

【 摘 要 】

Background

Cordyceps taii, an entomogenous fungus native to south China, is a folk medicine with varieties of pharmacological activities including anticancer effect. To validate the ethnopharmacological claim against cancer, the antitumor and antimetastatic activities of chloroform extract of C. taii (CFCT) were investigated in vivo.

Methods

The in vitro cytotoxic activities of CFCT against human lung cancer (A549) and gastric cancer (SGC-7901) cells were evaluated using the Sulforhodamine B (SRB) assay. In vivo anti tumor and antimetastatic activities, Kunming mice bearing sarcoma 180 and C57BL/6 mice bearing melanoma B16F10 were employed, respectively. The antitumor effects of CFCT were completely evaluated on the basis of the tumor weight, survival time, histologic analysis, and immune organ indices. The histopathological change, metastatic foci and malignant melanoma specific marker HMB45 in the lung tissue were detected for the evaluation of the antimetastatic activity of CFCT.

Results

CFCT exhibited dose- and time-dependent cytotoxicities against A549 and SGC-7901 cells with the IC ₅₀values of 30.2 and 65.7 μg/mL, respectively. Furthermore, CFCT at a dose of 50 or 100 mg/kg could significantly inhibit the tumor growth in vivo and prolonged the survival time in two different models as compared with the model group, especially when combined with the CTX at a low dose rate. And it also increased spleen index of Kunming mice and thymus index of C57BL/6 mice. Meanwhile, histologic analysis illustrated that CFCT alone or in combination with CTX could induce tumor tissue necrosis of both models. In addition, CFCT at a dose of 50 or 100 mg/kg inhibited the lung metastasis of melanoma B16F10 in tumor-bearing C57BL/6 mice. The antimetastatic effect was also observed when CFCT was used in combination with CTX. In comparison to any other groups, CFCT at a dose of 100 mg/kg could effectively enhance the GSH-Px activities of various tissues in tumor-bearing C57BL/6 mice.

Conclusions

These findings demonstrate that CFCT has potent in vivo antitumor and antimetastatic activities, and may be helpful to the development of anticancer chemopreventive agents from C. taii.

【 授权许可】

   
2015 Liu et al.

【 图 表 】

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