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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">chemicallytech</journal-id><journal-title-group><journal-title xml:lang="en">Fine Chemical Technologies</journal-title><trans-title-group xml:lang="ru"><trans-title>Тонкие химические технологии</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2410-6593</issn><issn pub-type="epub">2686-7575</issn><publisher><publisher-name>MIREA – Russian Technological University (RTU MIREA).</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32362/2410-6593-2025-20-6-582-593</article-id><article-id custom-type="edn" pub-id-type="custom">VKKHOP</article-id><article-id custom-type="elpub" pub-id-type="custom">chemicallytech-2336</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="en"><subject>BIOCHEMISTRY AND BIOTECHNOLOGY</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>БИОХИМИЯ И БИОТЕХНОЛОГИЯ</subject></subj-group></article-categories><title-group><article-title>Comparative analysis of three genetic constructs for delivery and expression of a modified single-domain antibody gene in rAAV</article-title><trans-title-group xml:lang="ru"><trans-title>Сравнительный анализ трех генетических конструкций для доставки и экспрессии гена модифицированного однодоменного антитела в составе rAAV</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2687-5185</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рябова</surname><given-names>Е. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Ryabova</surname><given-names>E. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Рябова Екатерина Игоревна, младший научный сотрудник, лаборатория иммунобиотехнологии; аспирант, ФГБОУ ВО «Московская государственная академия ветеринарной медицины и биотехнологии – МВА имени К.И. Скрябина» </p><p>Scopus Author ID 57301278100, ResearcherID AAE-7335-2022</p><p>123098, Москва, ул. Гамалеи, д. 18</p></bio><bio xml:lang="en"><p>Ekaterina I. Ryabova, Junior Researcher, Laboratory of Immunobiotechnology</p><p>Scopus Author ID 57301278100, ResearcherID AAE-7335-2022</p><p>18, Gamaleya ul., Moscow, 123098</p></bio><email xlink:type="simple">ryabovaei96@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3776-3856</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Деркаев</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Derkaev</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Деркаев Артем Алексеевич, младший научный сотрудник, лаборатория иммунобиотехнологии</p><p>Scopus Author ID 57381507000, ResearcherID AFU-7075-2022</p><p>123098, Москва, ул. Гамалеи, д. 18</p><p> </p></bio><bio xml:lang="en"><p>Artem A. Derkaev, Junior Researcher, Laboratory of Immunobiotechnology</p><p>Scopus Author ID 57381507000, ResearcherID AFU-7075-2022</p><p>18, Gamaleya ul., Moscow, 123098</p></bio><email xlink:type="simple">derkaev.a@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2063-2449</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Есмагамбетов</surname><given-names>И. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Esmagambetov</surname><given-names>I. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Есмагамбетов Ильяс Булатович, к.б.н., ведущий научный сотрудник, заведующий лабораторией стромальной регуляции иммунитета</p><p>Scopus Author ID 56120429700, ResearcherID E-3327-2014</p><p>123098, Москва, ул. Гамалеи, д. 18</p></bio><bio xml:lang="en"><p>Ilias B. Esmagambetov, Cand. Sci. (Biol.), Leading Researcher, Head of the Laboratory of Stromal Regulation of Immunity</p><p>Scopus Author ID 56120429700, ResearcherID E-3327-2014</p><p>18, Gamaleya ul., Moscow, 123098</p></bio><email xlink:type="simple">iesmagambetov@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0017-7784</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Довгий</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Dovgiy</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Довгий Михаил Андреевич, младший научный сотрудник, лаборатория иммунобиотехнологии</p><p>ResearcherID AFV-2114-2022</p><p>123098, Москва, ул. Гамалеи, д. 18</p></bio><bio xml:lang="en"><p>Mikhail A. Dovgiy, Junior Researcher, Laboratory of Immunobiotechnology</p><p>ResearcherID AFV-2114-2022</p><p>18, Gamaleya ul., Moscow, 123098</p></bio><email xlink:type="simple">imhail@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0005-9866-7376</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Блинов</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Blinov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Блинов Антон Анатольевич, лаборант исследователь, лаборатория стромальной регуляции иммунитета</p><p>ResearcherID OCL-6033-2025</p><p>123098, Москва, ул. Гамалеи, д. 18</p></bio><bio xml:lang="en"><p>Anton A. Blinov, Laboratory Research Assistant, Laboratory of Stromal Regulation of Immunity</p><p>ResearcherID OCL-6033-2025</p><p>18, Gamaleya ul., Moscow, 123098</p></bio><email xlink:type="simple">blinow.t@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0009-4483-2697</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хоссаин</surname><given-names>Р. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Hossain</surname><given-names>R. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Хоссаин Роза Махбубовна, младший научный сотрудник, лаборатория стромальной регуляции иммунитета</p><p>ResearcherID OCL-6134-2025</p><p>123098, Москва, ул. Гамалеи, д. 18</p></bio><bio xml:lang="en"><p>Roza M. Hossain, Junior Researcher, Laboratory of Stromal Regulation of Immunity</p><p>ResearcherID OCL-6134-2025</p><p>18, Gamaleya ul., Moscow, 123098</p></bio><email xlink:type="simple">xossain2013@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3709-8358</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дмитриев</surname><given-names>О. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Dmitriev</surname><given-names>O. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дмитриев Олег Евгеньевич, ведущий инженер, лаборатория стромальной регуляции иммунитета</p><p>ResearcherID ODJ-2714-2025</p><p>123098, Москва, ул. Гамалеи, д. 18</p></bio><bio xml:lang="en"><p>Oleg E. Dmitriev, Leading Engineer, Laboratory of Stromal Regulation of Immunity</p><p>ResearcherID ODJ-2714-2025</p><p>18, Gamaleya ul., Moscow, 123098</p></bio><email xlink:type="simple">d.e.oleg.work@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0792-7063</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Полянский</surname><given-names>Д. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Polyansky</surname><given-names>D. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Полянский Дмитрий Сергеевич, ассистент, кафедра аналитической химии им. И.П. Алимарина</p><p>Scopus Author ID 57890564200</p><p>119454, Москва, пр-т Вернадского, д. 78</p></bio><bio xml:lang="en"><p>Dmitry S. Polyansky, Assistant Professor, I.P. Alimarin Department of Analytical Chemistry</p><p>Scopus Author ID 57890564200</p><p>78, Vernadskogo pr., Moscow, 119545</p></bio><email xlink:type="simple">polanskiydmitriy15@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>Носков</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Noskov</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Носков Анатолий Николаевич, д.б.н., ведущий научный сотрудник, лаборатория иммунобиотехнологии</p><p>Scopus Author ID 7005685081</p><p>123098, Москва, ул. Гамалеи, д. 18</p></bio><bio xml:lang="en"><p>Anatoly N. Noskov, Dr. Sci. (Biol.), Leading Researcher, Laboratory of Immunobiotechnology</p><p>Scopus Author  ID 7005685081</p><p>18, Gamaleya ul., Moscow, 123098</p></bio><email xlink:type="simple">a_n_noskov@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1289-3411</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Щебляков</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shcheblyakov</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Щебляков Дмитрий Викторович, д.б.н., ведущий научный сотрудник, руководитель отдела генетики и молекулярной биологии бактерий, заведующий лабораторией иммунобиотехнологии</p><p>Scopus Author ID 35073056900, ResearcherID E-5899-2014</p><p>123098, Москва, ул. Гамалеи, д. 18</p></bio><bio xml:lang="en"><p>Dmitry V. Shcheblyakov, Dr. Sci. (Biol.), Leading Researcher, Head of the Department of Genetics and Molecular Biology of Bacteria, Head of the Laboratory of Immunobiotechnology</p><p>Scopus Author ID 35073056900, ResearcherID E-5899-2014</p><p>18, Gamaleya ul., Moscow, 123098</p></bio><email xlink:type="simple">sdmitryv@yahoo.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4035-6581</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Логунов</surname><given-names>Д. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Logunov</surname><given-names>D. Y.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Логунов Денис Юрьевич, д.б.н., академик Российской академии наук, заместитель директора по научной работе</p><p>Scopus Author ID 22835557900, ResearcherID E-8300-2014</p><p>123098, Москва, ул. Гамалеи, д. 18</p></bio><bio xml:lang="en"><p>Denis Y. Logunov, Academician at the Russian Academy of Sciences, Dr. Sci. (Biol.), Deputy Director for Research</p><p>Scopus Author ID 22835557900, ResearcherID E-8300-2014</p><p>18, Gamaleya ul., Moscow, 123098</p></bio><email xlink:type="simple">ldy78@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1769-5059</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гинцбург</surname><given-names>А. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Gintsburg</surname><given-names>A. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гинцбург Александр Леонидович, академик Российской академии наук, академик Российской академии медицинских наук, д.б.н., профессор, директор </p><p>Scopus Author ID 7005111491</p><p>123098, Москва, ул. Гамалеи, д. 18</p></bio><bio xml:lang="en"><p>Alexander L. Gintsburg, Academician at the Russian Academy of Sciences, Academician at the Russian Academy of Medical Sciences, Dr. Sci. (Biol.), Professor, Director </p><p>Scopus Author ID 7005111491</p><p>18, Gamaleya ul., Moscow, 123098</p></bio><email xlink:type="simple">gintsburg@gamaleya.org</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный исследовательский центр эпидемиологии и микробиологии им. Н.Ф. Гамалеи Министерства  Здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>N.F. Gamaleya National Research Center for Epidemiology and Microbiology, Ministry of Health of the Russian Federation</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>МИРЭА – Российский технологический университет (Институт тонких химических технологий  им. М.В. Ломоносова)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>MIREA – Russian Technological University (M.V. Lomonosov Institute of Fine Chemical Technologies)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>15</day><month>01</month><year>2026</year></pub-date><volume>20</volume><issue>6</issue><fpage>582</fpage><lpage>593</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ryabova E.I., Derkaev A.A., Esmagambetov I.B., Dovgiy M.A., Blinov A.A., Hossain R.M., Dmitriev O.E., Polyansky D.S., Noskov A.N., Shcheblyakov D.V., Logunov D.Y., Gintsburg A.L., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Рябова Е.И., Деркаев А.А., Есмагамбетов И.Б., Довгий М.А., Блинов А.А., Хоссаин Р.М., Дмитриев О.Е., Полянский Д.С., Носков А.Н., Щебляков Д.В., Логунов Д.Ю., Гинцбург А.Л.</copyright-holder><copyright-holder xml:lang="en">Ryabova E.I., Derkaev A.A., Esmagambetov I.B., Dovgiy M.A., Blinov A.A., Hossain R.M., Dmitriev O.E., Polyansky D.S., Noskov A.N., Shcheblyakov D.V., Logunov D.Y., Gintsburg A.L.</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://www.finechem-mirea.ru/jour/article/view/2336">https://www.finechem-mirea.ru/jour/article/view/2336</self-uri><abstract><sec><title>Objectives</title><p>Objectives. To obtain and compare the efficiency of three recombinant adeno-associated virus (rAAV) variants expressing the gene of the modified single-domain antibody B11-Fc specific to botulinum toxin type A (BoNT/A): rAAV-DJ-CMV-B11-Fc, rAAV-DJ-CASI-B11-Fc, and scAAV-DJ-CMV-B11-Fc.</p></sec><sec><title>Methods</title><p>Methods. The AAV-DJ Packaging System (Cell Biolabs, USA) was used to create target constructs and obtain rAAV. Expression of the B11-Fc antibody gene in the obtained rAAV was assessed in vitro (HEK293, CHO-S, and C2C12 cell lines) and in vivo (BALB/c mice) using biolayer interferometry. The protective properties of the drugs were investigated on the model of lethal intoxication of mice with</p></sec><sec><title>BoNT/A</title><p>BoNT/A.</p></sec><sec><title>Results</title><p>Results. The rAAV-DJ-CMV-B11-Fc drug demonstrated a high level of B11-Fc antibody production both in vitro and in vivo without a significant decrease in concentration for at least 6 months. Comparable levels of B11-Fc production were demonstrated by rAAV-DJ-CASI-B11-Fc and scAAV-DJ-CMV-B11-Fc drugs in both in vitro and in vivo studies, with the exception of C2C12 cells, where rAAV-DJ-CASI-B11-Fc demonstrated the highest efficacy. When investigating the protective activity of the drugs against a lethal dose of BoNT/A, it was found that rAAV-DJ-CASI-B11-Fc possessed more pronounced activity in the first two days following administration as compared to rAAV-DJ-CMV-B11-Fc. However, at later stages, starting from 3 months, the rAAV-DJ-CMV-B11-Fc drug product demonstrated the most pronounced protection against high doses of BoNT/A.</p></sec><sec><title>Conclusions</title><p>Conclusions. The obtained data show that rAAV-DJ-CASI-B11-Fc should be used for the induction of protection against BoNT/A at early stages (24–48 h) after administration, whereas for protection against the highest doses of BoNT/A in the long term, rAAV-DJ-CMV-B11-Fc should be used. Studies into the specific activity of the drugs at later stages after administration are still ongoing.</p></sec></abstract><trans-abstract xml:lang="ru"><sec><title>Цели</title><p>Цели. Получить и сравнить эффективность трех вариантов rAAV, экспрессирующих ген модифицированного однодоменного антитела B11-Fc, специфичного к ботулиническому токсину типа А (BoNT/A) — rAAV-DJ-CMV-B11-Fc, rAAV-DJ-CASI-B11-Fc и scAAV-DJ-CMV-B11-Fc.</p></sec><sec><title>Методы</title><p>Методы. Для создания целевых конструкций и получения rAAV использовали систему AAV-DJ Packaging System (Cell Biolabs, США). Экспрессию гена антитела B11-Fc в составе полученных rAAV оценивали in vitro (клеточные линии HEK293, CHO-S и C2C12) и in vivo (мыши линии BALB/c) при помощи биослойной интерферометрии. Защитные свойства препаратов изучали на модели летальной интоксикации мышей BoNT/A.</p></sec><sec><title>Результаты</title><p>Результаты. Препарат rAAV-DJ-CMV-B11-Fc показал высокий уровень продукции антитела B11-Fc как in vitro, так и in vivo без значимого снижения концентрации в течение как минимум 6 месяцев. Препараты rAAV-DJ-CASI-B11-Fc и scAAV-DJ-CMV-B11-Fc показали сравнимый уровень продукции B11-Fc как in vitro и in vivo, за исключением клеток C2C12, где rAAV-DJ-CASI-B11-Fc показал самую высокую эффективность. При изучении защитной активности препаратов против летальной дозы BoNT/A продемонстрировано, что в первые двое суток rAAV-DJ-CASI-B11-Fc и scAAV-DJ-CMV-B11-Fc обладают более выраженной активностью по сравнению с rAAV-DJ-CMV-B11-Fc. Однако на более поздних сроках, начиная с 3 месяца, препарат rAAV-DJ-CMV-B11-Fc демонстрирует наиболее выраженную защиту против высоких доз BoNT/A.</p></sec><sec><title>Выводы</title><p>Выводы. Полученные в ходе исследования данные показывают, что для индукции защиты от BoNT/A на ранних сроках (24–48 ч) после введения следует применять препарат rAAV-DJ-CASI-B11-Fc, тогда как для индукции защиты от максимально высоких доз BoNT/A в долгосрочной перспективе следует использовать rAAV-DJ-CMV-B11-Fc. Исследования специфической активности препаратов на более поздних сроках после введения продолжаются.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>аденоассоциированный вирус</kwd><kwd>однодоменные антитела</kwd><kwd>ботулизм</kwd><kwd>пассивная иммунизация</kwd><kwd>профилактика</kwd></kwd-group><kwd-group xml:lang="en"><kwd>rAAV</kwd><kwd>adeno-associated virus</kwd><kwd>single-domain antibodies</kwd><kwd>botulism</kwd><kwd>passive immunization</kwd><kwd>prophylaxis</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">Laursen N.S., Friesen R.H., Zhu X., Jongeneelen M., Blokland S., Vermond J., Van Eijgen A., Tang C., Van Diepen H., Obmolova G., van der Neut Kolfschoten M., et al. Universal protection against influenza infection by a multidomain antibody to influenza hemagglutinin. 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