Co-delivery of curcumin and Bcl-2 siRNA to enhance therapeutic effect against breast cancer cells using PEI-functionalized PLGA nanoparticles.
Pharm Dev Technol
; 27(7): 785-793, 2022 Sep.
Article
em En
| MEDLINE
| ID: mdl-36043390
ABSTRACT
PURPOSE:
Breast cancer is the second major cause of death worldwide among women. Co-delivery of anticancer drugs and nucleic acids targeting the apoptosis pathway could be a promising new approach.METHODS:
In the present study, we synthesized a novel nanostructure for the co-delivery of curcumin and siRNA to breast cancer cells. Curcumin-loaded polylactic-co-glycolic acid (PLGA) was synthesized using an O/W emulsion-solvent diffusion method. It was coated with polyethylenimine (PEI) and subsequently complexed with Bcl-2 siRNA. Also, nanoparticles were characterized such as zeta potential, size distribution and drug encapsulation. Finally, the cytotoxicity of NP and Bcl-2 expression was evaluated.RESULTS:
The curcumin-loaded PLGA nanoparticles were 70 nm in size, and increased to 84 nm after incorporation of PEI plus Bcl-2 siRNA. The encapsulation ratio of the drug in our nanoparticle was 78%. Cellular internalization of PLGA-CUR-PEI/Bcl-2 siRNA NPs was confirmed by fluorescence microscopy with the broadcasting of the fluorescence in the cytoplasm and into the nucleus. The results of the cell viability assay revealed that curcumin-loaded PLGA coated with PEI and Bcl-2 siRNA exhibited the highest cytotoxicity against the T47D cell line, while the siRNA decreased the Bcl-2 expression by 90.7%.CONCLUSION:
The co-delivery of curcumin plus Bcl-2 siRNA with the PLGA-PEI nanosystem could be a synergistic drug carrier against breast cancer cells.Palavras-chave
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Base de dados:
MEDLINE
Assunto principal:
Neoplasias da Mama
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Curcumina
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Nanopartículas
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Antineoplásicos
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article