Hafnium Oxide-Based Nanoplatform for Combined Chemoradiotherapy.

Autor: Sherstiuk AA; ITMO University, 9 Lomonosova, St. Petersburg 191002, Russia., Tsymbal SA; ITMO University, 9 Lomonosova, St. Petersburg 191002, Russia., Fakhardo AF; ITMO University, 9 Lomonosova, St. Petersburg 191002, Russia., Morozov VN; Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 4 Kosigyna, Moscow 117334, Russia., Krivoshapkina EF; ITMO University, 9 Lomonosova, St. Petersburg 191002, Russia., Hey-Hawkins E; Leipzig University, Faculty of Chemistry and Mineralogy, Institute of Inorganic Chemistry, Leipzig D-04103, Germany., Krivoshapkin PV; ITMO University, 9 Lomonosova, St. Petersburg 191002, Russia.
Jazyk: angličtina
Zdroj: ACS biomaterials science & engineering [ACS Biomater Sci Eng] 2021 Dec 13; Vol. 7 (12), pp. 5633-5641. Date of Electronic Publication: 2021 Oct 29.
DOI: 10.1021/acsbiomaterials.1c00973
Abstrakt: Recently, the combined therapy has become one of the main approaches in cancer treatment. Combining different approaches may provide a significant outcome by triggering several death mechanisms or causing increased damage of tumor cells without hurting healthy ones. The supramolecular nanoplatform based on a high-Z metal reported here is a suitable system for the targeted delivery of chemotherapeutic compounds, imaging, and an enhanced radiotherapy outcome. HfO 2 nanoparticles coated with oleic acid and a monomethoxypoly(ethylene glycol)-poly(ε-caprolactone) copolymer shell (nanoplatform) are able to accumulate inside cancer cells and release doxorubicin (DOX) under specific conditions. Neither uncoated nor coated nanoparticles show any cytotoxicity in vitro . DOX loaded onto a nanoplatform demonstrates a lower IC 50 value than pure DOX. X-ray irradiation of cancer cells loaded with a nanoplatform shows a higher death rate than that for cells without nanoparticles. These results provide an important foundation for the development of complex nanoscale systems for combined cancer treatment.
Databáze: MEDLINE