Journal
MEDICAL SCIENCE MONITOR
Volume 24, Issue -, Pages 5874-5880Publisher
INT SCIENTIFIC LITERATURE, INC
DOI: 10.12659/MSM.909682
Keywords
Apoptosis; Cell Cycle; Osteosarcoma
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Background: Osteosarcoma is a prevalent type of bone tumor mainly reported in children and adolescents. The treatments for osteosarcoma are limited and are associated with serious adverse effects. In this study we evaluated the anticancer activity of Evodiamine, a plant-derived natural product, against a panel of osteosarcoma cells and explored the underlying mechanisms. Material/Methods: The viability of osteosarcoma cell lines was investigated by MTT assay. Apoptosis was detected by DAPI and annexin V/PI staining and cell cycle analysis was performed by flow cytometry. The expression of the proteins was examined by Western blotting. Results: The results of the present study indicated that Evodiamine inhibited the proliferation of U205 osteosarcoma cells with an IC50 of 6 mu M. Further investigations indicated the antiproliferative effects of Evodiamine are due to induction of apoptosis and G2/M cell cycle arrest. The results of Western blotting revealed that the expression of several apoptosis (Cytochrome c, Bax, Bid, Caspase 3, 9, 8, and PARP) and cell cycle-related proteins (cyclin Bl, Cdc25c, and Cdc2) was significantly altered. Evodiamine also suppressed the migration and invasion of U205 osteosarcoma cells. Moreover, Evodiamine downregulated the expression of important regulatory proteins such as p-MEK and p-ERK, leading to the inhibition of Raf/MEK/ERK signalling pathways. Conclusions: We found that Evodiamine exerts anticancer effects on osteosarcoma cells and has potential in the treatment of osteosarcoma.
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