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A Co-Delivery System of Curcumin and p53 for Enhancing the Sensitivity of Drug-Resistant Ovarian Cancer Cells to Cisplatin

Published:4 June 2020 DOI: 10.3390/molecules25112621 PMID: 32512936
Xinli Guo, Zhou Fang, Min Zhang, Deyu Yang, Shuyue Wang, Kehai Liu

Abstract

In order to enhance the sensitivity of drug-resistant ovarian cancer cells to cisplatin (DDP), a co-delivery system was designed for simultaneous delivery of curcumin (CUR) and p53 DNA. Firstly, the bifunctional peptide K14 composed of tumor targeting peptide (tLyP-1) and nuclear localization signal (NLS) was synthesized. A nonviral carrier (PEI-K14) was synthesized by cross-linking low molecular weight polyethyleneimine (PEI) with K14. Then, CUR was coupled to PEI-K14 by matrix metalloproteinase 9 (MMP9)-cleavable peptide to prepare CUR-PEI-K14. A co-delivery system, named CUR-PEI-K14/p53, was obtained by CUR-PEI-K14 and p53 self-assembly. Furthermore, the physicochemical properties and gene transfection efficiency were evaluated. Finally, ovarian cancer cisplatin-resistant (SKOV3-DDP) cells were selected to evaluate the effect of CUR-PEI-K14/p53 on enhancing the sensitivity of drug-resistant cells to DDP. The CUR-PEI-K14/DNA complexes appeared uniformly dispersed and spherical. The particle size was around 20-150 nm and the zeta potential was around 18-37 mV. It had good stability, high transfection efficiency, and low cytotoxicity. CUR-PEI-K14/p53 could significantly increase the sensitivity of SKOV3-DDP cells to DDP, and this effect was better as combined with DDP. The sensitizing effect might be related to the upregulation of p53 messenger RNA (mRNA), the downregulation of P-glycoprotein (P-gp) mRNA, and the upregulation of BCL2-Associated X (bax) mRNA. CUR-PEI-K14/p53 can be used as an effective strategy to enhance the sensitivity of drug-resistant ovarian cancer cells to DDP.

Substances (6)

Materials
Procduct Name CAS Molecular Formula Supplier Price
Cisplatin 15663-27-1 Cl2H6N2Pt 922 suppliers $17.00-$7570.00
Cisplatin 15663-27-1 Cl2H6N2Pt 922 suppliers $17.00-$7570.00
Cisplatin 15663-27-1 Cl2H6N2Pt 922 suppliers $17.00-$7570.00
Cisplatin 15663-27-1 Cl2H6N2Pt 922 suppliers $17.00-$7570.00
Cisplatin 15663-27-1 - Inquiry
Cisplatin 15663-27-1 - Inquiry

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