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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">transmed</journal-id><journal-title-group><journal-title xml:lang="ru">Трансляционная медицина</journal-title><trans-title-group xml:lang="en"><trans-title>Translational Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2311-4495</issn><issn pub-type="epub">2410-5155</issn><publisher><publisher-name>Almazov National Medical Research Centre, Saint Petersburg, Russia</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18705/2311-4495-2023-10-6-522-534</article-id><article-id custom-type="edn" pub-id-type="custom">JVUYKD</article-id><article-id custom-type="elpub" pub-id-type="custom">transmed-833</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>МЕДИЦИНСКАЯ ХИМИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MEDICINAL CHEMISTRY</subject></subj-group></article-categories><title-group><article-title>Разработка прототипа тераностической системы на основе наночастиц кремнезема с иммобилизированными флуоресцентными красителями и направляющим лигандом VEGF</article-title><trans-title-group xml:lang="en"><trans-title>Development of a prototype of a theranostic system based on silica nanoparticles with immobilized fluorescent dyes and VEGF targeting ligand.</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>Чебуркин</surname><given-names>Ю. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Cheburkin</surname><given-names>Yu. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чебуркин Юрий Владимирович, к.м.н., заведующий НИЛ инфекционных патогенов и биомолекулярных наноструктур, научный сотрудник НИЛ нейрогенеза и нейродегенеративных заболеваний НЦМУ «Центр персонализированной медицины»</p><p>ул. Долгоозерная, д. 43, лит. А, Санкт-Петербург, 197349</p></bio><bio xml:lang="en"><p>Yuri V. Cheburkin, MD, PhD, head of ResearchLaboratory of Infectious Pathogens and Biomolecular Nanostructures, research scientist, Research Laboratory of Neurogenesis and Neurodegenerative Diseases, World-Class Research Centre for Personalized Medicine, Almazov National Medical Research Centre</p></bio><email xlink:type="simple">cheburkin_yuv@almazovcentre.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шульмейстер</surname><given-names>Г. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Shulmeister</surname><given-names>G. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шульмейстер Галина Анатольевна, младший научный сотрудник НИЛ нанотехнологий</p></bio><bio xml:lang="en"><p>Galina A. Shulmeister, junior research assistant of the Research Laboratory of Nanotechnologies, Almazov National Medical Research Centre</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>Бондаренко</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Bondarenko</surname><given-names>A. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бондаренко Андрей Борисович, младший научный сотрудник НИЛ инфекционных патогенов и биомолекулярных наноструктур; старший преподаватель кафедры медицинской биологии</p></bio><bio xml:lang="en"><p>Andrey B. Bondarenko, junior research scientist, Research Laboratory of Infectious Pathogens and Biomolecular Nanostructures; senior lecturer of Department of Medical Biology</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>Чистякова</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Chistyakova</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чистякова Анастасия Вячеславовна, студент</p></bio><bio xml:lang="en"><p>Anastasia V. Chistyakova, student</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>Королев</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Korolev</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Королев Дмитрий Владимирович, д.х.н., заведующий НИЛ нанотехнологий, ФГБУ «НМИЦ им. В. А. Алмазова» Минздрава России; научный сотрудник </p></bio><bio xml:lang="en"><p>Dmitry V. Korolev, PhD, head of the Research Laboratory of Nanotechnologies; research scientist</p></bio><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное учреждение «Национальный медицинский исследовательский центр имени В. А. Алмазова» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Almazov National Medical Research Centre</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное учреждение «Национальный медицинский исследовательский центр имени В. А. Алмазова» Министерства здравоохранения Российской Федерации; Федеральное государственное бюджетное образовательное учреждение высшего образования «Санкт-Петербургский государственный педиатрический медицинский университет» Министерства здравоохранения Российской Федерации</institution><country>Russian Federation</country></aff><aff xml:lang="en"><institution>Almazov National Medical Research Centre; Saint Petersburg State Pediatric Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Федеральное государственное автономное образовательное учреждение высшего образования «Санкт-Петербургский государственный электротехнический университет «ЛЭТИ» имени В. И. Ульянова (Ленина)»</institution><country>Russian Federation</country></aff><aff xml:lang="en"><institution>Saint Petersburg Electrotechnical University “LETI”,</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное учреждение «Национальный медицинский исследовательский центр имени В. А. Алмазова» Министерства здравоохранения Российской Федерации; Федеральное государственное бюджетное образовательное учреждение высшего образования «Первый Санкт-Петербургский государственный медицинский университет имени академика И. П. Павлова» Министерства здравоохранения Российской Федерации</institution><country>Russian Federation</country></aff><aff xml:lang="en"><institution>Almazov National Medical Research Centre; Academician I. P. Pavlov First Saint Petersburg State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>26</day><month>01</month><year>2024</year></pub-date><volume>10</volume><issue>6</issue><fpage>522</fpage><lpage>534</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Чебуркин Ю.В., Шульмейстер Г.А., Бондаренко А.Б., Чистякова А.В., Королев Д.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Чебуркин Ю.В., Шульмейстер Г.А., Бондаренко А.Б., Чистякова А.В., Королев Д.В.</copyright-holder><copyright-holder xml:lang="en">Cheburkin Y.V., Shulmeister G.A., Bondarenko A.B., Chistyakova A.V., Korolev D.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://transmed.almazovcentre.ru/jour/article/view/833">https://transmed.almazovcentre.ru/jour/article/view/833</self-uri><abstract><sec><title>Актуальность</title><p>Актуальность. Введение некоторых лекарств вызывает нежелательные явления, связанные с системным воздействием действующего вещества на организм. Селективное нацеливание лекарственного средства на пораженную ткань способно избирательно повысить концентрацию вещества именно в зоне интереса, тем самым снизив системное влияние и усилив локальный терапевтический эффект.</p></sec><sec><title>Цель</title><p>Цель. Создание средства направленной доставки тераностических агентов с использованием рекомбинантного фактора роста эндотелия сосудов типа А человека (rhVEGF-A121) в качестве направляющего лиганда.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Для создания тераностического комплекса были использованы коммерчески доступные реактивы: рекомбинантный белок rhVEGF-A121 и пирогенный кремнезем Аэросил. Тозильный спейсер, соединяющий оба компонента, был синтезирован в условиях лаборатории. Конъюгация белка с флуорофорами также проводилась собственными силами. Для иммобилизации взяты индоцианин зеленый и Родамин Б.</p></sec><sec><title>Результаты</title><p>Результаты. В ходе работы проведена функционализация наночастиц кремнезема (НЧК) Аэросил тозильным спейсером, синтезированы конъюгаты НЧК с rhVEGF-A121, получены тераностические конструкции на основе НЧК, включающие rhVEGF-A121, в качестве направляющего лиганда, и ИЦЗ/Родамин Б, в качестве визуализирующей метки.</p></sec><sec><title>Заключение</title><p>Заключение. В представленном исследовании разработан прототип средства направленной доставки тераностического агента в ткани с активно протекающим процессом ангиогенеза, например, в опухолевые и ишемизированные ткани. Для решения задачи проведена иммобилизация на поверхности наночастицы кремнезема (НЧК) направляющего лиганда, в качестве которого использован рекомбинантный белок фактора роста эндотелия сосудов человека (rhVEGF). Подобная синтетическая конструкция позволит доставлять диагностические и/или лекарственные вещества, заключенные в НЧК, непосредственно к клеткам, усиленно экспрессирующим экстрацеллюлярные специфические рецепторы для данного фактора роста, а именно протеин-тирозиновые киназы семейства VEGFR. В последующих экспериментах in vivo оценка эффективности доставки будет оцениваться по накоплению в тканях флуорофоров ИЦЗ и Родамина Б, которые были конъюгированы с белком направляющего лиганда.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Background</title><p>Background. Administration of certain drugs causes undesirable effects associated with the systemic effect of the active substance on the entire body. Selective targeting of the drug to the affected tissue promotes a selective increase in the concentration of the substance in the area of interest, thereby reducing the systemic effect and enhancing the local therapeutic effect.</p></sec><sec><title>Objective</title><p>Objective. Development of a targeted delivery system for theranostic agents using recombinant human vascular endothelial growth factor type A (rhVEGF-A121) as a targeting ligand.</p></sec><sec><title>Design and method</title><p>Design and method. To create the theranostic complex, commercially available reagents were used: the recombinant protein rhVEGF-A121 (cat.#: PSG140-10, LLC CyStorLab, Skolkovo, Russia) and fumed silica Aerosil (A-200, Degussa AG, Germany). The tosyl spacer that interconnects both components was synthesized in the laboratory. Protein conjugation with fluorophores was also carried out in-house. Indocyanine green (ICG; Sigma-Aldrich, USA) and rhodamine B (JSC Lenreaktiv, St. Petersburg, Russia) were taken for immobilization.</p></sec><sec><title>Results</title><p>Results. In the course of the work, functionalization of silica nanoparticles (SiNPs) with a tosyl spacer was carried out, conjugates of SiNPs with rhVEGF-A121 were synthesized, and theranostic constructs based on SiNPs were obtained, including rhVEGF-A121 as a targeting ligand, and ICG/Rhodamine B as a visualizing label.</p></sec><sec><title>Conclusion</title><p>Conclusion. In the presented study, a prototype of a complex for targeted delivery of a theranostic agent to tissues with an active angiogenesis process, for example, to tumor and ischemic tissues, was developed. To solve the problem, we immobilized on the surface of SiNP a recombinant protein of human vascular endothelial growth factor (rhVEGF) to use as a guide ligand. Such a synthetic construct will help to deliver diagnostic and/ or medicinal substances packed in SiNP directly to cells that overexpress extracellular specific receptors of the VEGFR family. In subsequent in vivo experiments, delivery efficiency will be assessed by tissue accumulation of the fluorophores ICG and rhodamine B, which have been conjugated to the targeting ligand protein. The physicochemical characteristics of the obtained samples were studied by the methods of spectrophotometry and dynamic light scattering.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>наночастицы кремнезема</kwd><kwd>направленная доставка</kwd><kwd>направляющий лиганд</kwd><kwd>тераностические агенты</kwd><kwd>функционализация наночастиц кремнезема</kwd><kwd>VEGF-А</kwd></kwd-group><kwd-group xml:lang="en"><kwd>functionalization of silica nanoparticles</kwd><kwd>silica nanoparticles</kwd><kwd>targeted delivery</kwd><kwd>targeting ligand</kwd><kwd>theranostic agents</kwd><kwd>VEGF-A</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено за счет гранта Российского научного фонда (проект № 23-15-00151).</funding-statement><funding-statement xml:lang="en">This study was supported by the Russian Science Foundation (Project 23-15-00151).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Ferrara N, Gerber HP, LeCouter J. 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