Abstract
Curcumin, a biphenyl compound derived from rhizome, is a powerful anti-cancer agent. Emodin is an active component isolated from the root and rhizome of Rheum palmatum that has been widely used in traditional Chinese medicine for the treatment of various diseases. Currently, there are no studies examining the effect of curcumin in combination with emodin on tumor cell growth. In this study, we report for the first time that combined curcumin and emodin administration synergistically inhibits proliferation (MTT assay), survival (flow cytometry), and invasion (transwell migration assay) of breast cancer cells. Synergism is determined by the Chou–Talalay method. Moreover, we demonstrate that miR-34a is upregulated by curcumin and emodin. This microRNA helps mediate the anti-tumor effects of curcumin and emodin by downregulating Bcl-2 and Bmi-1. Our results not only provide insight into the mechanism of synergy between curcumin and emodin in breast cancer cells, but also suggest a new and potentially useful approach for breast cancer therapy.
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15 December 2021
A Correction to this paper has been published: https://doi.org/10.1007/s11010-021-04312-0
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Acknowledgments
This work was supported by grants from the Key Program of National Natural Science Foundation of China (No. 31030061), the National Natural Science Foundation of China (No. 81272514 and No. 31100935), the Doctoral Fund of Ministry of Education of China (No. 20090171110078), and the China Postdoctoral Science Foundation (No. 2012M520075).
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Jiaoli Guo and Wenping Li contributed equally to this study.
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Guo, J., Li, W., Shi, H. et al. Synergistic effects of curcumin with emodin against the proliferation and invasion of breast cancer cells through upregulation of miR-34a. Mol Cell Biochem 382, 103–111 (2013). https://doi.org/10.1007/s11010-013-1723-6
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DOI: https://doi.org/10.1007/s11010-013-1723-6