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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">ssmu</journal-id><journal-title-group><journal-title xml:lang="ru">Бюллетень сибирской медицины</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of Siberian Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1682-0363</issn><issn pub-type="epub">1819-3684</issn><publisher><publisher-name>Siberian State Medical University, the Ministry of Healthcare of the Russian Federation</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20538/1682-0363-2019-2-69-79</article-id><article-id custom-type="elpub" pub-id-type="custom">ssmu-2306</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL PAPERS</subject></subj-group></article-categories><title-group><article-title>Разработка и свойства нового носителя доксорубицина на основе поверхностно-модифицированных микрочастиц ноль-валентного железа с высокой эффективностью инкапсуляции и возможностью его контролируемого высвобождения</article-title><trans-title-group xml:lang="en"><trans-title>Development and properties of a new doxorubicin carrier based on surface-modified iron zero-valent microparticles with high encapsulation efficiency and the possibility of its controlled release</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ди Мартино</surname><given-names>А.</given-names></name><name name-style="western" xml:lang="en"><surname>Di Martino</surname><given-names>A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ди Мартино Антонио, PhD, науч. сотрудник; мл. науч. сотрудник, центр полимерных систем634050, г. Томск, пр. Ленина, 30</p><p>Чешская Республика, 760 01, г. Злин, пр. Томаша Бати, 5678</p></bio><bio xml:lang="en"><p>Di Martino Antonio, PhD, Researcher, Research School of Chemistry and Applied Biomedical Sciences; Senior Researcher, Centre of Polymer Systems30, Lenin Av., Tomsk, 634050</p><p>5678, Tr. Tomas Bata Zlin, 760 01</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Власов</surname><given-names>С. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Vlasov</surname><given-names>S. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Власов Сергей Сергеевич, аспирант; технолог634050, г. Томск, пр. Ленина, 30</p><p>634050, г. Томск, Московский тракт, 2</p></bio><bio xml:lang="en"><p>Vlasov Sergei S., PhD Student, Research School of Chemistry and Applied Biomedical Sciences;Рroduction Еngineer, Technology Implementation Centre of Central Scientific Research Laboratory30, Lenin Av., Tomsk, 634050</p><p>2, Moscow Tract, Tomsk, 634050</p></bio><email xlink:type="simple">unreal800@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гурьев</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Guryev</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"/><bio xml:lang="en"><p>Guryev Artem M., DPharmSc, Head of Technology Implementation Centre of Central Scientific ResearchLaboratory </p><p>2, Moscow Tract, Tomsk, 634050</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Юсубов</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Yusubov</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юсубов Мехман Сулейманович, д-р хим. наук, профессор, директор Исследовательской школы химических и биомедицинских технологий; гл.науч. сотрудник ЦНИЛ634050, г. Томск, пр. Ленина, 30</p><p>634050, г. Томск, Московский тракт, 2</p></bio><bio xml:lang="en"><p>Yusubov Mekhman S., DChSc, Full Professor, Headmaster of Research School of Chemistry and AppliedBiomedical Sciences; Chief Researcher, Central Scientific Research Laboratory30, Lenin Av., Tomsk, 634050</p><p>2, Moscow Tract, Tomsk, 634050</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Постников</surname><given-names>П. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Postnikov</surname><given-names>P. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Постников Павел Сергеевич, канд. хим. наук, доцент,Исследовательская школа химических и биомедицинских технологий634050, г. Томск, пр. Ленина, 30</p><p>Чешская Республика, 166 28, г. Прага, пр. Технический, 5</p></bio><bio xml:lang="en"><p>Postnikov Pavel S., PhD, Associate Professor, Research School of Chemistry and Applied Biomedical Sciences30, Lenin Av., Tomsk, 634050</p><p>166 28 Prague, Czech Republic</p></bio><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Белоусов</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Belousov</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Белоусов Михаил Валерьевич, д-р фарм. наук, профессор, зав. кафедрой фармацевтического анализа634050, г. Томск, пр. Ленина, 30</p><p>634050, г. Томск, Московский тракт, 2</p></bio><bio xml:lang="en"><p>Belousov Mikhail V., DPharmSc., Professor, Head of the Department of Pharmaceutical Analysis</p><p>30, Lenin Av., Tomsk, 634050</p><p>2, Moscow Tract, Tomsk, 634050</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный исследовательский Томский политехнический университет (НИ ТПУ); Университет Томаша Бати в Злине</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Tomsk Polytechnic University (NR TPU); Tomas Bata University in Zlin</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный исследовательский Томский политехнический университет (НИ ТПУ); Сибирский государственный медицинский университет (СибГМУ)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Tomsk Polytechnic University (NR TPU); Siberian State Medical University (SSMU)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Сибирский государственный медицинский университет (СибГМУ)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Siberian State Medical University (SSMU)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Национальный исследовательский Томский политехнический университет (НИ ТПУ); Высшая школа химической технологии</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Tomsk Polytechnic University (NR TPU);  University of Chemistry and Technology</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>11</day><month>08</month><year>2019</year></pub-date><volume>18</volume><issue>2</issue><fpage>69</fpage><lpage>79</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ди Мартино А., Власов С.С., Гурьев А.М., Юсубов М.С., Постников П.С., Белоусов М.В., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Ди Мартино А., Власов С.С., Гурьев А.М., Юсубов М.С., Постников П.С., Белоусов М.В.</copyright-holder><copyright-holder xml:lang="en">Di Martino A., Vlasov S.S., Guryev A.M., Yusubov M.S., Postnikov P.S., Belousov M.V.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://bulletin.ssmu.ru/jour/article/view/2306">https://bulletin.ssmu.ru/jour/article/view/2306</self-uri><abstract><p>В настоящее время химиотерапия в сочетании с хирургией и лучевой терапией является наиболее эффективным методом лечения рака. В то же время применение данного метода сопровождается серьезными побочными эффектами, обусловленными неспецифичностью большинства химиотерапевтических агентов. В связи с этим разработка систем доставки лекарственных средств (СДЛС), способных обеспечить адресацию химиотерапевтического агента к раковым клеткам, а также его контролируемое высвобождение представляют собой перспективный подход для эффективного лечения онкологических заболеваний. Цель работы – синтез нового СДЛС на основе поверхностно-модифицированных микрочастиц ноль-валентного железа, изучение его свойств в качестве носителя химиотерапевтического агента (эффективность инкапсуляции, емкость загрузки, возможность контролируемого высвобождения химиотерапевтического агента) и безопасности. Материалы и методы. Частицы были получены методом восстановления хлорида железа (III) боргидридом натрия с последующей in situ модификацией поверхности 4-карбоксибензолдиазония тозилатом согласно модифицированной методике. Наличие функциональных групп на поверхности подтверждали методом ИК-спектроскопии с использованием спектрометра Nicolet iS5 Infrared Spectrometer (Thermo Scientific, США). Размеры и поверхностный заряд микрочастиц в растворе исследовали методом динамического рассеяния света и дзета-потенциала. Для оценки влияния pH окружающей среды на скорость высвобождения доксорубицина исследование проводили в моделированных физиологических условиях (pH 3,3; 5,5; 7,4). Изучение высвобождения под воздействием ультразвукового поля проводили одновременно при тех же условиях. Влияние модификации поверхности на эффективность инкапсуляции оценивали при различных значениях рН (3,3; 5,5; 7,4) и концентрациях доксорубицина (0,2; 0,35; 0,5; 0,75; 1,0 мг/мл). Для подтверждения безопасности разработанной СДЛС определение цитотоксичности проводили на клеточной линии HeLa (ATCC® CCL-2™). Результаты. Предложена оригинальная методика получения носителя на основе микрочастиц нольвалентного железа с ковалентно присоединенным к поверхности хитозаном (Fe-CS), обладающе го высокими значениями э.ффективности инкапсуляции и емкости загрузки доксорубицина (0,9 мг на 1 мг микрочастиц Fe-CS), низкой цитотоксичностью, а также возможностью контролируемого высвобождения цитостатического агента (доксорубицина) под воздействием ультразвукового излучения при различных значениях рН. Заключение. Получен носитель на основе микрочастиц ноль-валентного железа с ковалентно присоединенным к поверхности хитозаном (Fe-CS). Определена эффективность инкапсуляции, емкость загрузки доксорубицина и подтверждена возможность его контролируемого высвобождения под воздействием ультразвукового поля при различных значениях рН. В эксперименте in vitro на клеточной линии HeLa (ATCC® CCL-2™) установлено отсутствие токсичности для всех образцов (Fe0,Fe-COOH и Fe-CS) вне зависимости от их концентрации.</p></abstract><trans-abstract xml:lang="en"><p>Currently, chemotherapy combined with surgery and radiation therapy is the most effective treatment for cancer. At the same time, the use of this method is accompanied by serious side effects caused by the lack of specificity of most chemotherapeutic agents. In this regard, the development of drug delivery systems (DDS) capable of addressing a chemotherapeutic agent to cancer cells, as well as its controlled release, is a promising approach for the effective treatment of cancer.  The aim of the study is to synthesize a new DDS based on surface-modified microparticles of zero-valent iron, to study its properties as a carrier of a chemotherapeutic agent (encapsulation efficiency, loading capacity, possibility of controlled release of a chemotherapeutic agent) and safety. Materials and methods. The microparticles were synthesised by reduction of iron (III) chloride with sodium borohydride followed by in situ surface modification by 4-carboxybenzyldiazonium tosylate. To confirm the occurrence of the reaction, FTIR spectroscopy (Nicolet iS5 Infrared Spectrometer (Thermo Scientific, USA)) was used. Hydrodynamic diameter and surface charge of the microparticles in solution were investigated by dynamic light scattering (DLS) and z-potential. DOX release studies were performed in simulated physiological conditions (pH 3.3; 5.5; 7.4) to evaluate the effect of the external pH on the release rate. Release studies under ultrasound irradiation were performed simultaneously in the same conditions. The effect of surface modification on encapsulation efficiency was evaluated at various pH values (3.3; 5.5; 7.4) and doxorubicin concentrations (0.2; 0.35; 0.5; 0.75; 1.0 mg/ml). To demonstrate the safety of the developed system, cytotoxicity studies were performed on HeLa cell lines (ATCC® CCL-2™).  Results. An original method of preparation of the drug carrier, based on iron zero-valent microparticleswith covalently attached chitosan (Fe-CS) on their surface was proposed. Prepared microparticles demonstrated high encapsulation efficiency, drug loading capacity of DOX (0.9 mg per 1 mg of FeCS microparticles), low cytotoxicity and also a possibility to modulate the release rate by ultrasound irradiation and by changing pH of the external environment. Conclusion. A carrier based on microparticles of zero-valent iron with covalently attached to the surface chitosan (Fe-CS) was obtained. The efficiency of encapsulation, the loading capacity of doxorubicin was determined and the possibility of its controlled release under the influence of an ultrasonic field at different pH values was confirmed. In an in vitro experiment on the HeLa cell line (ATCC® CCL-2™), no toxicity was established for all samples (Fe0, Fe-COOH и Fe-CS), regardless of their concentration.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>доксорубицин</kwd><kwd>хитозан</kwd><kwd>микрочастицы нольвалентного железа</kwd><kwd>доставка лекарственных средств</kwd><kwd>стимул-чувствительный носитель</kwd><kwd>контролируемое высвобождение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>doxorubicin</kwd><kwd>chitosan</kwd><kwd>zerovalent iron microparticles</kwd><kwd>drug delivery</kwd><kwd>stimuli responsive carrier</kwd><kwd>controlled release</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Liu F.S. Mechanisms of chemotherapeutic drug resistance in cancer therapy – A quick review. Taiwan J. Obstet. Gynecol. 2009; 48 (3): 239–244. 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