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  • Title: Antineoplastic effect of calycosin on osteosarcoma through inducing apoptosis showing in vitro and in vivo investigations.
    Author: Qiu R, Ma G, Zheng C, Qiu X, Li X, Li X, Mo J, Li Z, Liu Y, Mo L, Bi G, Ye Y.
    Journal: Exp Mol Pathol; 2014 Aug; 97(1):17-22. PubMed ID: 24797937.
    Abstract:
    Recently, increasing studies have documented that tumorigenesis closely relates to apoptotic processes. Thus, inducing apoptosis is an anti-cancer strategy against osteosarcoma. Here we investigated the anti-proliferative effect of calycosin on human osteosarcoma cell (143B) in vitro. The results showed that calycosin dose-dependently inhibited 143B cell proliferation as reflected in tetrazolium salt (MTT) assay (P<0.01). In addition, calycosin effectively down-regulated cellular mRNA expressions of IκBα, NF-κB p65 and cyclin D1 through RT-PCR assay (P<0.01). Next, calycosin-mediated inhibitory effect on 143B tumor-bearing nude mice and the underlying mechanism were evaluated and discussed. As a result, calycosin administration significantly blocked solid tumor growth in 143B-harbored nude mice (P<0.01). Furthermore, intracellular Bcl-2 protein expression was effectively reduced in 143B-harbored tumor tissue through western blotting analysis (P<0.01), while intratumoral Apaf-1 and cleaved Caspase-3 protein levels were up-regulated, respectively (P<0.01). Taken together, calycosin possesses the anti-osteosarcoma potential, in which the mechanism involved was associated with activation of apoptotic, thus inducing apoptosis.
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