Gold Nanoparticles Mediated Drug-Gene Combinational Therapy for Breast Cancer Treatment




Shrestha, Binita
Wang, Lijun
Zhang, Hao
Hung, Chiung-Yu
Tang, Liang

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Dove Press


Background: Cancer is a complex heterogeneous disease to which singular modes of treatment mostly fail to produce a desired therapeutic efficacy. Targeting different cellular pathways using combinational therapies has been gaining popularity in cancer treatment, with the added benefit of reducing dosage and side effects. Methods: A gold nanoparticle-mediated drug delivery nanoplatform was developed for co-delivery of doxorubicin and polo-like kinase 1 (PLK1) siRNA. Gold nanoparticles were coated with polyethyleneimine to facilitate assembly of PLK1 on the surface. Doxorubicin was loaded on nanoparticles through a pH-sensitive linker with a thiol group at one terminal end for controlled release. Results: The therapeutic efficiency of this co-delivery system was evaluated in 2D and 3D cultured systems. The reduced IC50 value clearly demonstrated the synergistic effect of combined drug and gene delivery over their individual delivery in a cancer treatment model. Conclusion: This study may provide an adaptable, facile platform to investigate drug-siRNA combinations for cancer inhibition.


Article first published by Dove Press in the International Journal of Nanomedicine.


nanomedicine, cancer therapy, pH-responsive, co-delivery, PLK1


Shrestha B, Wang L, Zhang H, Hung CY, Tang L. Gold Nanoparticles Mediated Drug-Gene Combinational Therapy for Breast Cancer Treatment. Int J Nanomedicine. 2020;15:8109-8119


Molecular Microbiology and Immunology