Article Publish Status: FREE
Abstract Title:

γ-Tocotrienol induces paraptosis-like cell death in human colon carcinoma SW620 cells.

Abstract Source:

PLoS One. 2013 ;8(2):e57779. Epub 2013 Feb 28. PMID: 23469066

Abstract Author(s):

Jing-Shu Zhang, Da-Ming Li, Yue Ma, Ning He, Qing Gu, Feng-Shan Wang, Shu-Qing Jiang, Bing-Qing Chen, Jia-Ren Liu

Article Affiliation:

Jing-Shu Zhang


Colorectal cancer is one of the most serious illnesses among diagnosed cancer. As a new type of anti-cancer composition from tocotrienol-rich fraction of palm oil,γ-tocotrienol is widely used in anti-cancer research. The objectives of this study were to investigate the effects of γ-tocotrienol on human colon cancer SW620 and HCT-8 cells. We showed that treatment with different concentrations of γ-tocotrienol resulted in a dose dependent inhibition of cellgrowth. Cell death induced by γ-tocotrienol was mediated by a paraptosis-like cell death in SW620 and HCT-8 cells. Real-time RT-PCR and western blot analyses showed that γ-tocotrienol inhibited the expression level of β-catenin, cyclin D1 and c-jun. These data suggest that a paraptosis-like celldeath induced by γ-tocotrienol in SW620 cells is associated with the suppression of the Wnt signaling pathway, which offers a novel tool for treating apoptosis-resistance colon cancer.

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