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Вид документа : Статья из журнала
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Автор(ы) : Belyanina I. V., Zamay T. N., Zamay G. S., Zamay S. S., Kolovskaya, Olga S., Ivanchenko, Tatiana I., Denisenko, Valery V., Kirichenko, Andrey K., Glazyrin, Yury E., Garanzha, Irina V., Grigorieva, Valentina V., Shabanov A. V., Veprintsev, Dmitry V., Sokolov A. E., Sadovskii, Vladimir M., Gargaun, Ana, Berezovski M. V., Kichkailo, Anna S.
Заглавие : In vivo cancer cells elimination guided by aptamer-functionalized gold-coated magnetic nanoparticles and controlled with low frequency alternating magnetic field
Коллективы : Russian Scientific Fund [14-15-00805]
Место публикации : Theranostics. - 2017. - Vol. 7, Is. 13. - P.3326-3337. - ISSN 1838-7640, DOI 10.7150/thno.17089
Примечания : Cited References:35. - The authors are grateful to George Y. Vorogeikin, Yuri I. Vorogeikin and "OKB ART". Andrey Barinov and "OPTEC Group" for help with 3D laser scanning imaging. Microscopic analyses using Carl Zeiss LSM 800 were done in the "Center for bioassay, nanotechnology and nanomaterials safety" ("Biotest-Nano") (Multiple-Access Center, Tomsk State University, Tomsk, Russia). Toxicity studies have been performed in Multiple-Access Center, Central Scientific Research Laboratory in Krasnoyarsk State Medical University named after prof. V.F. Voino-Yasenecky. This work was supported by the Russian Scientific Fund (grant #14-15-00805).
Предметные рубрики: PHOTOTHERMAL THERAPY
INTEGRIN ACTIVATION
FIBRONECTIN
STIMULATION
Ключевые слова (''Своб.индексиров.''): cancer therapy--gold coated magnetic nanoparticles--dna aptamers--low--frequency alternating magnetic field--fibronectin--integrin--apoptosis--necrosis
Аннотация: Biomedical applications of magnetic nanoparticles under the influence of a magnetic field have been proved useful beyond expectations in cancer therapy. Magnetic nanoparticles are effective heat mediators, drug nanocarriers, and contrast agents; various strategies have been suggested to selectively target tumor cancer cells. Our study presents magnetodynamic nanotherapy using DNA aptamer-functionalized 50 nm gold-coated magnetic nanoparticles exposed to a low frequency alternating magnetic field for selective elimination of tumor cells in vivo. The cell specific DNA aptamer AS-14 binds to the fibronectin protein in Ehrlich carcinoma hence helps deliver the gold-coated magnetic nanoparticles to the mouse tumor. Applying an alternating magnetic field of 50 Hz at the tumor site causes the nanoparticles to oscillate and pull the fibronectin proteins and integrins to the surface of the cell membrane. This results in apoptosis followed by necrosis of tumor cells without heating the tumor, adjacent healthy cells and tissues. The aptamer-guided nanoparticles and the low frequency alternating magnetic field demonstrates a unique non-invasive nanoscalpel technology for precise cancer surgery at the single cell level.
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