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In vitro co-delivery evaluation of PEGylated nano-liposome loaded by glycyrrhizic acid and cisplatin on cancer cell lines

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Abstract

Cisplatin, a platinum-based drug, is widely used in cancer treatment but is associated with significant side effects; new treatment delivery methods must be developed which enhance treatment efficiency while decreasing the sequelae of chemotherapy. The aim of this study was to develop novel liposomal nano-particles (NPs) loaded with two drugs including cisplatin and glycyrrhizic acid. This study hypothesized that introducing glycyrrhizic acid, as an adjuvant treatment, and cisplatin, as a chemotherapeutic agent, into a co-delivery system can enhance the therapeutic effect. In this study, the synthetic method and specifications of NPs were evaluated. After surface modification by polyethylene glycol (PEG), the size and the zeta potential of NPs were reported as 81.6 nm and − 30.7 mV, respectively. DLD-1 and LIM-2405 human colon cancer cell lines were then applied to evaluate the cytotoxicity of NPs using an MTT assay. The results revealed that IC50 for DLD-1, as a resistant cell line to cisplatin, decreased by 48% on co-delivery system treatment. Furthermore, to determine the proliferative potential of cell lines and DNA damage on cancerous cells after treatment by NPs and cisplatin in free form, the cell proliferation assay and immunocytochemistry method were performed. The results showed that a co-delivery system caused more than 43% DNA damage to cancerous cells compared with the free form of cisplatin. The finding of this study demonstrates that the co-delivery system has a significant anti-cancer efficiency compared with the free form of cisplatin. To conclude, the results of this study demonstrate a possible application of glycyrrhizic acid as an adjuvant treatment for cisplatin on co-delivery systems.

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Acknowledgments

The authors would like to thank Sheikh Bahaei’s research laboratory complex in Science and Research Branch, Islamic Azad University, Tehran, Iran.

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Correspondence to Amir Heydarinasab.

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Hatami, A., Heydarinasab, A., Akbarzadehkhiyavi, A. et al. In vitro co-delivery evaluation of PEGylated nano-liposome loaded by glycyrrhizic acid and cisplatin on cancer cell lines. J Nanopart Res 22, 257 (2020). https://doi.org/10.1007/s11051-020-04982-9

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  • DOI: https://doi.org/10.1007/s11051-020-04982-9

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