Multicore iron oxide nanoparticles for magnetic hyperthermia and combination therapy against cancer cells.
J Colloid Interface Sci
; 670: 73-85, 2024 Sep 15.
Article
em En
| MEDLINE
| ID: mdl-38759270
ABSTRACT
HYPOTHESIS:
Multicore flower-like iron oxide nanoparticles (IONPs) are among the best candidates for magnetic hyperthermia applications against cancers. However, they are rarely investigated in physiological environments and their efficacy against cancer cells has been even less studied. The combination of magnetic hyperthermia, using multicore IONPs, with selected bioactive molecules should lead to an enhanced activity against cancer cells. EXPERIMENTS Multicore IONPs were synthesized by a seeded-growth thermal decomposition approach. Then, the cytotoxicity, cell uptake, and efficacy of the magnetic hyperthermia approach were studied with six cancer cell lines PANC1 (pancreatic carcinoma), Mel202 (uveal melanoma), MCF7 (breast adenocarcinoma), MB231 (triple-negative breast cancer line), A549 (lung cancer), and HCT116 (colon cancer). Finally, IONPs were modified with a chemotherapeutic drug (SN38) and tumor suppressor microRNAs (miR-34a, miR-182, let-7b, and miR-137), to study their activity against cancer cells with and without combination with magnetic hyperthermia.FINDINGS:
Two types of multicore IONPs with very good heating abilities under magnetic stimulation have been prepared. Their concentration-dependent cytotoxicity and internalization have been established, showing a strong dependence on the cell line and the nanoparticle type. Magnetic hyperthermia causes significant cell death that is dramatically enhanced in combination with the bioactive molecules.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Temas:
Geral
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Prevencao_e_fatores_de_risco
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Agentes_cancerigenos
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Tipos_de_cancer
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Outros_tipos
Base de dados:
MEDLINE
Assunto principal:
Nanopartículas Magnéticas de Óxido de Ferro
/
Hipertermia Induzida
Limite:
Humans
Idioma:
En
Revista:
J Colloid Interface Sci
/
J. colloid interface sci
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Journal of colloid and interface science
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
Espanha