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13 May 2016 : Laboratory Research  

Actein Inhibits Cell Proliferation and Migration in Human Osteosarcoma

Zhi ChenBCDEF, Jingdong WuBCDEF, Qinghao GuoACG

DOI: 10.12659/MSM.898483

Med Sci Monit 2016; 22:1609-1616

Abstract

BACKGROUND: Osteosarcoma is one of the most common malignant bone cancers worldwide. Although the traditional chemotherapies have made some progression in the past decades, the mortality of osteosarcoma in children and adolescent is very high. Herein, the role of actein in osteosarcoma was explored.

MATERIAL AND METHODS: Cell viability assay was performed in osteosarcoma cell lines 143B and U2OS. Colony formation analysis was included when cells were treated with different doses of actin. Cell cycle assay was conducted to further examine the role of actein. Cell apoptotic rate and the relative activities of caspase-3, caspase-8, and caspase-9 were detected in 143B and U2OS osteosarcoma cells. Moreover, transwell assays were used to explore the effects of actein on cell metastasis.

RESULTS: Actein significantly inhibited osteosarcoma cell viability in a time- and dose-dependent manner. Actein also dramatically suppressed the colony formation ability in osteosarcoma143B and U2OS cells. It was revealed that osteosarcoma cells were arrested in G0/G1 phase in the cell cycle progression and induced to apoptosis by administration of actein. The activities of pro-apoptotic factors such as caspase-3 and caspase-9 were significantly increased by actein. Furthermore, administration of actein decreased cell migrated and invasive abilities in both 143B and U2OS cell lines.

CONCLUSIONS: Actein inhibits tumor growth by inducing cell apoptosis in osteosarcoma. The inhibitive roles of actein in cell proliferation, migration and invasion suggest that actein may serve as a potential therapeutic agent in the treatment of osteosarcoma.

Keywords: Bone Neoplasms - pathology, Caspases - metabolism, Cell Cycle - drug effects, Cell Movement - drug effects, Cell Proliferation - drug effects, Dose-Response Relationship, Drug, Osteosarcoma - pathology, Saponins - pharmacology, Triterpenes - pharmacology

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750