Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.tiv.2010.12.013
Title: Chrysin promotes tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) induced apoptosis in human cancer cell lines
Authors: Li, X.
Wang, J.-N.
Huang, J.-M.
Xiong, X.-K.
Chen, M.-F.
Ong, C.-N. 
Shen, H.-M. 
Yang, X.-F.
Keywords: Apoptosis
Cancer
Chrysin
TNF-related apoptosis-inducing ligand (TRAIL)
Issue Date: Apr-2011
Citation: Li, X., Wang, J.-N., Huang, J.-M., Xiong, X.-K., Chen, M.-F., Ong, C.-N., Shen, H.-M., Yang, X.-F. (2011-04). Chrysin promotes tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) induced apoptosis in human cancer cell lines. Toxicology in Vitro 25 (3) : 630-635. ScholarBank@NUS Repository. https://doi.org/10.1016/j.tiv.2010.12.013
Abstract: Chrysin exists widely in plants, honey and propolis. The anti-cancer property of chrysin has been demonstrated though the molecular mechanism is not clear. In this study, we found that pre-treatment with chrysin could promote the cell death induced by TRAIL according to the morphological changes and appearance of sub-G1 peak in four human cancer cell lines. In HCT-116 cells, the results of flow cytometry analysis showed that the percentage of sub-G1 reached (38.89 ± 3.78) % when pre-treatment of chrysin was used at 40 μM, but that was only (2.53 ± 0.10) % in the untreated group and (13.22 ± 0.20) % in TRAIL alone group. The differences between the combination and the untreated or TRAIL alone group were all significant (P< 0.05) and dose-dependent effect was obvious. Similar results were obtained in CNE1 cells. In the search of molecular mechanisms, we found that pre-treatment with chrysin could increase TRAIL-induced degradation of caspase 3, caspase 8, PARP proteins. Z-VAD-fmk, which is a pan-caspase inhibitor, could inhibit the apoptosis enhanced by the combination of chrysin and TRAIL. All data indicate that chrysin can enhance the apoptosis induced by TRAIL, and the apoptosis is caspase-dependent and related to the activation of caspase 8. © 2010 Elsevier Ltd.
Source Title: Toxicology in Vitro
URI: http://scholarbank.nus.edu.sg/handle/10635/108299
ISSN: 08872333
DOI: 10.1016/j.tiv.2010.12.013
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