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Int J Biol Macromol ; 235: 123821, 2023 Apr 30.
Artigo em Inglês | MEDLINE | ID: mdl-36870633

RESUMO

A combination of chemotherapy and chemodynamic therapy (CDT) is being developed to improve the theranostic efficacy and biological safety of current therapies. However, most CDT agents are restricted due to complex issues such as multiple components, low colloidal stability, carrier-associated toxicity, insufficient reactive oxygen species generation, and poor targeting efficacy. To overcome these problems, a novel nanoplatform composed of fucoidan (Fu) and iron oxide (IO) nanoparticles (NPs) was developed to achieve chemotherapy combined with CDT synergistic treatment with a facile self-assembling manner, and the NPs were made up of Fu and IO, in which the Fu was not only used as a potential chemotherapeutic but was also designed to stabilize the IO and target P-selectin-overexpressing lung cancer cells, thereby producing oxidative stress and thus synergizing the CDT efficacy. The Fu-IO NPs exhibited a suitable diameter below 300 nm, which favored their cellular uptake by cancer cells. Microscopic and MRI data confirmed the lung cancer cellular uptake of the NPs due to active Fu targeting. Moreover, Fu-IO NPs induced efficient apoptosis of lung cancer cells, and thus offer significant anti-cancer functions by potential chemotherapeutic-CDT.


Assuntos
Neoplasias Pulmonares , Nanopartículas , Neoplasias , Humanos , Medicina de Precisão , Selectina-P , Linhagem Celular Tumoral , Nanomedicina Teranóstica , Neoplasias/tratamento farmacológico , Estresse Oxidativo , Neoplasias Pulmonares/tratamento farmacológico , Nanopartículas Magnéticas de Óxido de Ferro , Nanopartículas/uso terapêutico
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