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Biomimetic Inorganic Nanovectors as Tumor-Targeting Theranostic Platform against Triple-Negative Breast Cancer by Wen, Huang (author);Poutiainen, Pekka (author);Batnasan, Enkhzaya (author);Latonen, Leena (author);Lehto, Vesa-Pekka (author);Xu, Wujun (author) is a Pharmacology, Toxicology and Pharmaceutics article available to read on EtoBox.

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Mesoporous silicon nanoparticles (PSi NPs) are promising platforms of nanomedicine because of their good compatibility, high payload capacities of anticancer drugs, and easy chemical modification. Here, PSi surfaces were functionalized with bisphosphonates (BP) for radiolabeling, loaded with doxorubicin (DOX) for chemotherapy, and the NPs were coated with cancer cell membrane (CCm) for homotypic cancer targeting. To enhance the CCm coating, the NP surfaces were covered with polyethylene glycol prior to the CCm coating. The effects of the BP amount and pH conditions on the radiolabeling efficacy were studied. The maximum BP was (2.27 wt%) on the PSi surfaces, and higher radiochemical yields were obtained for ^99m^Tc (97% ± 2%) and ^68^Ga (94.6% ± 0.2%) under optimized pH conditions (pH = 5). The biomimetic NPs exhibited a good radiochemical and colloidal stability in phosphate-buffered saline and cell medium. In vitro studies demonstrated that the biomimetic NPs exhibited an enhanced cellular uptake and increased delivery of DOX to cancer cells, resulting in better chemotherapy than free DOX or pure NPs. Altogether, these findings indicate the potential of the developed platform for

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Author

Wen, Huang (author);Poutiainen, Pekka (author);Batnasan, Enkhzaya (author);Latonen, Leena (author);Lehto, Vesa-Pekka (author);Xu, Wujun (author)

Publisher

MDPI AG

Published

2023

Language

EN

Field

Pharmacology, Toxicology and Pharmaceutics (Life Sciences)