Curcumin enhances temsirolimus-induced apoptosis in human renal carcinoma cells through upregulation of YAP/p53

Xu,Shan; Yang,Zheng; Fan,Yizeng; Guan,Bing; Jia,Jing; Gao,Yang; Wang,Ke; Wu,Kaijie; Wang,Xinyang; Zheng,Pengsheng; He,Dalin; Guo,Peng

doi:10.3892/ol.2016.5376

December-2016 Volume 12 Issue 6

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December-2016 Volume 12 Issue 6

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Article Open Access

Curcumin enhances temsirolimus-induced apoptosis in human renal carcinoma cells through upregulation of YAP/p53

Authors:
- Shan Xu
- Zheng Yang
- Yizeng Fan
- Bing Guan
- Jing Jia
- Yang Gao
- Ke Wang
- Kaijie Wu
- Xinyang Wang
- Pengsheng Zheng
- Dalin He
- Peng Guo
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Affiliations: Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China, Department of Reproductive Medicine, The First Affiliated Hospital, Xi'an Jiaotong University Medical School, Xi'an, Shaanxi 710061, P.R. China

Copyright: © Xu et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
Pages: 4999-5006
|
Published online on: November 10, 2016

https://doi.org/10.3892/ol.2016.5376
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Abstract

Curcumin has frequently been used as a therapeutic agent in the treatment of various types of disease and is known to enhance the drug sensitivity of cells. In the present study, the combined effect of curcumin and temsirolimus treatment on apoptosis in human renal cell carcinoma (RCC) cells was investigated. Temsirolimus is an inhibitor of the mechanistic target of rapamycin signaling pathway and used in the first‑line treatment of metastatic RCC. It was demonstrated that curcumin combined with temsirolimus markedly induced apoptosis in RCC cells, however this effect was not observed following curcumin or temsirolimus treatment alone. Co‑treatment with temsirolimus and curcumin led to the activation of cleaved poly ADP‑ribose polymerase and caspase 3, upregulation of p53 expression and nuclear translocation, and downregulation of B‑cell lymphoma 2 protein expression. Furthermore, curcumin treatment was demonstrated to increase Yes‑associated protein (YAP) expression in a time‑dependent manner, which was concurrent with the curcumin‑induced expression pattern of p53 after 2 h. In addition, knockdown of YAP by small interfering RNA caused the attenuation of curcumin‑induced increased p53 expression in RCC cells. In conclusion, the present results indicate that combined curcumin and temsirolimus treatment has a synergistic effect on apoptosis in human RCC cells, through the activation of p53. Mechanistically, YAP is essential in the induction of p53 expression by curcumin. Furthermore, the results suggest that pre‑treatment or co‑treatment of cells with low concentration curcumin enhances the response to targeted drugs, and this presents a potentially novel and efficient strategy to overcome drug resistance in human RCC.

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Journals

International Journal of Molecular Medicine

International Journal of Oncology

Molecular Medicine Reports

Oncology Reports

Experimental and Therapeutic Medicine

Oncology Letters

Biomedical Reports

Molecular and Clinical Oncology

World Academy of Sciences Journal

International Journal of Functional Nutrition

International Journal of Epigenetics

Medicine International

Curcumin enhances temsirolimus-induced apoptosis in human renal carcinoma cells through upregulation of YAP/p53

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