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Article Open Access

Zn(II)-curc targets p53 in thyroid cancer cells

  • Authors:
    • Alessia Garufi
    • Valerio D'Orazi
    • Alessandra Crispini
    • Gabriella D'Orazi
  • View Affiliations / Copyright

    Affiliations: Department of Experimental Oncology, Regina Elena National Cancer Institute, Rome, Italy, Department of Surgical Sciences, Sapienza University, Rome, Italy, Department of Chemistry and Technologic Chemistry, University of Calabria, Cosenza, Italy
    Copyright: © Garufi et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 1241-1248
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    Published online on: August 13, 2015
       https://doi.org/10.3892/ijo.2015.3125
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Abstract

TP53 mutation is a common event in many cancers, including thyroid carcinoma. Defective p53 activity promotes cancer resistance to therapies and a more malignant phenotype, acquiring oncogenic functions. Rescuing the function of mutant p53 (mutp53) protein is an attractive anticancer therapeutic strategy. Zn(II)-curc is a novel small molecule that has been shown to target mutp53 protein in several cancer cells, but its effect in thyroid cancer cells remains unclear. Here, we investigated whether Zn(II)-curc could affect p53 in thyroid cancer cells with both p53 mutation (R273H) and wild-type p53. Zn(II)-curc induced mutp53H273 downregulation and reactivation of wild-type functions, such as binding to canonical target promoters and target gene transactivation. This latter effect was similar to that induced by PRIMA-1. In addition, Zn(II)-curc triggered p53 target gene expression in wild-type p53-carrying cells. In combination treatments, Zn(II)-curc enhanced the antitumor activity of chemotherapeutic drugs, in both mutant and wild-type-carrying cancer cells. Taken together, our data indicate that Zn(II)-curc promotes the reactivation of p53 in thyroid cancer cells, providing in vitro evidence for a potential therapeutic approach in thyroid cancers.
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Copy and paste a formatted citation
Spandidos Publications style
Garufi A, D'Orazi V, Crispini A and D'Orazi G: Zn(II)-curc targets p53 in thyroid cancer cells. Int J Oncol 47: 1241-1248, 2015.
APA
Garufi, A., D'Orazi, V., Crispini, A., & D'Orazi, G. (2015). Zn(II)-curc targets p53 in thyroid cancer cells. International Journal of Oncology, 47, 1241-1248. https://doi.org/10.3892/ijo.2015.3125
MLA
Garufi, A., D'Orazi, V., Crispini, A., D'Orazi, G."Zn(II)-curc targets p53 in thyroid cancer cells". International Journal of Oncology 47.4 (2015): 1241-1248.
Chicago
Garufi, A., D'Orazi, V., Crispini, A., D'Orazi, G."Zn(II)-curc targets p53 in thyroid cancer cells". International Journal of Oncology 47, no. 4 (2015): 1241-1248. https://doi.org/10.3892/ijo.2015.3125
Copy and paste a formatted citation
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Spandidos Publications style
Garufi A, D'Orazi V, Crispini A and D'Orazi G: Zn(II)-curc targets p53 in thyroid cancer cells. Int J Oncol 47: 1241-1248, 2015.
APA
Garufi, A., D'Orazi, V., Crispini, A., & D'Orazi, G. (2015). Zn(II)-curc targets p53 in thyroid cancer cells. International Journal of Oncology, 47, 1241-1248. https://doi.org/10.3892/ijo.2015.3125
MLA
Garufi, A., D'Orazi, V., Crispini, A., D'Orazi, G."Zn(II)-curc targets p53 in thyroid cancer cells". International Journal of Oncology 47.4 (2015): 1241-1248.
Chicago
Garufi, A., D'Orazi, V., Crispini, A., D'Orazi, G."Zn(II)-curc targets p53 in thyroid cancer cells". International Journal of Oncology 47, no. 4 (2015): 1241-1248. https://doi.org/10.3892/ijo.2015.3125
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