Riboflavin photoactivation by upconversion nanoparticles for cancer treatment

Riboflavin (Rf) is a vitamin and endogenous photosensitizer capable to generate reactive oxygen species (ROS) under UV-blue irradiation and kill cancer cells, which are characterized by the enhanced uptake of Rf. We confirmed its phototoxicity on human breast adenocarcinoma cells SK-BR-3 preincubate...

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Veröffentlicht in:Scientific reports 2016-10, Vol.6 (1), p.35103-35103, Article 35103
Hauptverfasser: Khaydukov, E. V., Mironova, K. E., Semchishen, V. A., Generalova, A. N., Nechaev, A. V., Khochenkov, D. A., Stepanova, E. V., Lebedev, O. I., Zvyagin, A. V., Deyev, S. M., Panchenko, V. Ya
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container_title Scientific reports
container_volume 6
creator Khaydukov, E. V.
Mironova, K. E.
Semchishen, V. A.
Generalova, A. N.
Nechaev, A. V.
Khochenkov, D. A.
Stepanova, E. V.
Lebedev, O. I.
Zvyagin, A. V.
Deyev, S. M.
Panchenko, V. Ya
description Riboflavin (Rf) is a vitamin and endogenous photosensitizer capable to generate reactive oxygen species (ROS) under UV-blue irradiation and kill cancer cells, which are characterized by the enhanced uptake of Rf. We confirmed its phototoxicity on human breast adenocarcinoma cells SK-BR-3 preincubated with 30-μM Rf and irradiated with ultraviolet light, and proved that such Rf concentrations (60 μM) are attainable in vivo in tumour site by systemic intravascular injection. In order to extend the Rf photosensitization depth in cancer tissue to 6 mm in depth, we purpose-designed core/shell upconversion nanoparticles (UCNPs, NaYF 4 :Yb 3+ :Tm 3+ /NaYF 4 ) capable to convert 2% of the deeply-penetrating excitation at 975 nm to ultraviolet-blue power. This power was expended to photosensitise Rf and kill SK-BR-3 cells preincubated with UCNPs and Rf, where the UCNP-Rf energy transfer was photon-mediated with ~14% Förster process contribution. SK-BR-3 xenograft regression in mice was observed for 50 days, following the Rf-UCNPs peritumoural injection and near-infrared light photodynamic treatment of the lesions.
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subjects 13/2
13/31
14/28
14/33
59/5
631/67/1059/153
639/624/1111/55
64/60
Animals
Breast cancer
Breast Neoplasms - drug therapy
Cancer
Cancer therapies
Carcinoma, Lewis Lung - drug therapy
Cell Line, Tumor
Cell Survival - drug effects
Chemical Sciences
CHO Cells
Cricetulus
Cristallography
Energy transfer
Female
Fluorides - chemistry
Humanities and Social Sciences
Humans
Injection
Irradiation
Material chemistry
Metal Nanoparticles - chemistry
Metal Nanoparticles - therapeutic use
Mice
Mice, Inbred C57BL
Mice, Inbred DBA
multidisciplinary
Nanoparticles
Neoplasms, Experimental - drug therapy
Neoplasms, Experimental - metabolism
Neoplasms, Experimental - pathology
or physical chemistry
Photoactivation
Photochemotherapy - methods
Photosensitizing Agents - therapeutic use
Phototoxicity
Reactive oxygen species
Reactive Oxygen Species - metabolism
Riboflavin - therapeutic use
Science
Theoretical and
Thulium - chemistry
Ultraviolet radiation
Xenograft Model Antitumor Assays
Xenografts
Ytterbium - chemistry
Yttrium - chemistry
title Riboflavin photoactivation by upconversion nanoparticles for cancer treatment
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