Phenethyl isothiocyanate and paclitaxel synergistically enhanced apoptosis and alpha-tubulin hyperacetylation in breast cancer cellsReport as inadecuate




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Experimental Hematology and Oncology

, 3:5

First Online: 05 February 2014Received: 15 December 2013Accepted: 03 February 2014DOI: 10.1186-2162-3619-3-5

Cite this article as: Cang, S., Ma, Y., Chiao, J. et al. Exp Hematol Oncol 2014 3: 5. doi:10.1186-2162-3619-3-5

Abstract

Combination of phenethyl isothiocyanate PEITC and paclitaxel taxol has been shown to work synergistically to increase apoptosis and cell cycle arrest in breast cancer cells. In this report, we further explored the mechanisms for the synergistic activity of PEITC and taxol in MCF7 and MDA-MB-231 MB breast cancer cell lines. By Western blotting analysis, treatment of MCF7 cells with both PEITC and taxol led to a 10.4-fold and 5.96-fold increase in specific acetylation of alpha-tubulin over single agent PEITC and taxol, respectively. This synergistic effect on acetylation of alpha-tubulin was also seen in MB cells. The combination of PEITC and taxol also reduced expressions of cell cycle regulator Cdk1, and anti-apoptotic protein bcl-2, enhanced expression of Bax and cleavage of PARP proteins. In conclusion, this study provided biochemical evidence for the mechanism of synergistic effect between the epigenetic agent PEITC and the chemotherapeutic agent taxol.

Electronic supplementary materialThe online version of this article doi:10.1186-2162-3619-3-5 contains supplementary material, which is available to authorized users.

Shundong Cang, Yuehua Ma contributed equally to this work.

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Author: Shundong Cang - Yuehua Ma - Jen-wei Chiao - Delong Liu

Source: https://link.springer.com/







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