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- W4317734502 abstract "Involvement of 3D tumor cell models in the in vitro biological testing of novel nanotechnology-based strategies for cancer management can provide in-depth information on the real behavior of tumor cells in complex biomimetic architectures. Here, we used polyethylene glycol-encapsulated iron oxide nanoparticles for the controlled delivery of a doxorubicin chemotherapeutic substance (IONPDOX), and to enhance cytotoxicity of photon radiation therapy. The biological effects of nanoparticles and 150 kV X-rays were evaluated on both 2D and 3D cell models of normal human keratinocytes (HaCaT) and tumor cells—human cervical adenocarcinoma (HeLa) and human squamous carcinoma (FaDu)—through cell survival. In all 2D cell models, nanoparticles were similarly internalized in a peri-nuclear pattern, but resulted in different survival capabilities following radiation treatment. IONP on normal keratinocytes showed a protective effect, but a cytotoxic effect for cancer cells. In 3D tumor cell models, IONPDOX were able to penetrate the cell spheroids towards the hypoxic areas. However, IONPDOX and 150 kV X-rays led to a dose-modifying factor DMFSF=0.1 = 1.09 ± 0.1 (200 µg/mL IONPDOX) in HeLa spheroids, but to a radioprotective effect in FaDu spheroids. Results show that the proposed treatment is promising in the management of cervical adenocarcinoma." @default.
- W4317734502 created "2023-01-23" @default.
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- W4317734502 date "2023-01-22" @default.
- W4317734502 modified "2023-10-15" @default.
- W4317734502 title "Nanoparticle-Mediated Drug Delivery of Doxorubicin Induces a Differentiated Clonogenic Inactivation in 3D Tumor Spheroids In Vitro" @default.
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- W4317734502 doi "https://doi.org/10.3390/ijms24032198" @default.
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