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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">actabiomedica</journal-id><journal-title-group><journal-title xml:lang="ru">Acta Biomedica Scientifica</journal-title><trans-title-group xml:lang="en"><trans-title>Acta Biomedica Scientifica</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2541-9420</issn><issn pub-type="epub">2587-9596</issn><publisher><publisher-name>Scientific Centre for Family Health and Human Reproduction Problems</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29413/ABS.2024-9.4.24</article-id><article-id custom-type="elpub" pub-id-type="custom">actabiomedica-4965</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>ЭКСПЕРИМЕНТАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>EXPERIMENTAL RESEARCHES</subject></subj-group></article-categories><title-group><article-title>Получение маннанов из клеточных стенок дрожжей Saccharomyces cerevisiae и оценка их адъювантной способности на модели субъединичной вакцины</article-title><trans-title-group xml:lang="en"><trans-title>Mannans: Obtaining from the cell walls of Saccharomyces cerevisiae yeast and assessing their adjuvant properties in a subunit vaccine model</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9006-8313</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Есина</surname><given-names>Т. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Esina</surname><given-names>T. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Есина Татьяна Игоревна – научный сотрудник лаборатории получения и анализа биосубстанций отдела разработки технологий и пилотного производства биопрепаратов</p><p>630559, Новосибирская область, р.п. Кольцово</p></bio><bio xml:lang="en"><p>Tatiana I. Esina – Research Officer at the Laboratory of Obtaining and Analyzing Biosubstances, Department of Technology Development and Pilot Production of Biopreparations</p><p>Koltsovo 630559, Novosibirsk region</p></bio><email xlink:type="simple">esina_ti@vector.nsc.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/0000-0001-5028-5647</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Волосникова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Volosnikova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Волосникова Екатерина Александровна – кандидат биологических наук, ведущий научный сотрудник, заведующая лабораторией получения и анализа биосубстанций</p><p>630559, Новосибирская область, р.п. Кольцово</p></bio><bio xml:lang="en"><p>Ekaterina A. Volosnikova – Cand. Sc. (Biol.), Leading Research Officer, Head of the Laboratory of Obtaining and Analyzing Biosubstances</p><p>Koltsovo 630559, Novosibirsk region</p></bio><email xlink:type="simple">volosnikova_ea@vector.nsc.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/0000-0001-8023-4453</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Щербаков</surname><given-names>Д. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Shcherbakov</surname><given-names>D. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Щербаков Дмитрий Николаевич – кандидат биологических наук, ведущий научный сотрудник</p><p>630559, Новосибирская область, р.п. Кольцово</p></bio><bio xml:lang="en"><p>Dmitry N. Shcherbakov – Cand. Sc. (Biol.), Leading Research Officer, Head of the Laboratory of Immunochemistry</p><p>Koltsovo 630559, Novosibirsk region</p></bio><email xlink:type="simple">dnshcherbakov@gmail.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/0000-0001-5010-9424</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Волкова</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Volkova</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Волкова Наталья Вячеславовна – кандидат биологических наук, научный сотрудник лаборатории иммунохимии </p><p>630559, Новосибирская область, р.п. Кольцово</p></bio><bio xml:lang="en"><p>Natalia V. Volkova – Cand. Sc. (Biol.), Research Officer at the Laboratory of Immunochemistry</p><p>Koltsovo 630559, Novosibirsk region</p></bio><email xlink:type="simple">volkova_nv@vector.nsc.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/0000-0002-0450-5212</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зайковская</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zaykovskaya</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Зайковская Анна Владимировна – кандидат биологических наук, старший научный сотрудник отдела «Коллекция микроорганизмов»</p><p>630559, Новосибирская область, р.п. Кольцово</p></bio><bio xml:lang="en"><p>Anna V. Zaykovskaya – Cand. Sc. (Biol.), Senior Research Officer at the Department "Collection of Microorganisms"</p><p>Koltsovo 630559, Novosibirsk region</p></bio><email xlink:type="simple">zaykovskaya_av@vector.nsc.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/0000-0002-1078-7033</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шимина</surname><given-names>Г. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Shimina</surname><given-names>G. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шимина Галина Григорьевна – научный сотрудник отдела биологических испытаний</p><p>630559, Новосибирская область, р.п. Кольцово</p></bio><bio xml:lang="en"><p>Galina G. Shimina – Research Officer at the Biological Testing Department</p><p>Koltsovo 630559, Novosibirsk region</p></bio><email xlink:type="simple">shimina_gg@vector.nsc.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/0000-0001-5026-1602</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Даниленко</surname><given-names>Е. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Danilenko</surname><given-names>E. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Даниленко Елена Дмитриевна – кандидат биологических наук, директор Института медицинской биотехнологии</p><p>630559, Новосибирская область, р.п. Кольцово</p></bio><bio xml:lang="en"><p>Elena D. Danilenko– Cand. Sc. (Biol.), Director of the Institute of Medical Biotechnology</p><p>Koltsovo 630559, Novosibirsk region</p></bio><email xlink:type="simple">danilenko_ed@vector.nsc.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФБУН «Государственный научный центр вирусологии и биотехнологии «Вектор» Роспотребнадзора</institution></aff><aff xml:lang="en"><institution>State Scientific Center for Virology and Biotechnology "Vector" of Rospotrebnadzor</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>28</day><month>09</month><year>2024</year></pub-date><volume>9</volume><issue>4</issue><fpage>221</fpage><lpage>229</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Есина Т.И., Волосникова Е.А., Щербаков Д.Н., Волкова Н.В., Зайковская А.В., Шимина Г.Г., Даниленко Е.Д., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Есина Т.И., Волосникова Е.А., Щербаков Д.Н., Волкова Н.В., Зайковская А.В., Шимина Г.Г., Даниленко Е.Д.</copyright-holder><copyright-holder xml:lang="en">Esina T.I., Volosnikova E.A., Shcherbakov D.N., Volkova N.V., Zaykovskaya A.V., Shimina G.G., Danilenko E.D.</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.actabiomedica.ru/jour/article/view/4965">https://www.actabiomedica.ru/jour/article/view/4965</self-uri><abstract><sec><title>Обоснование</title><p>Обоснование. Полисахариды обладают адъювантными свойствами, биодеградируемы и безопасны, а их производство не отличается трудоёмкостью. В связи с этим получение адъювантов на основе полисахаридов является актуальной задачей.</p></sec><sec><title>Цель исследования</title><p>Цель исследования. Разработка способа получения маннанов из дрожжей Saccharomyces cerevisiae и исследование их адъювантных свойств на модели субъединичной вакцины.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Препарат маннанов получали из клеточной стенки дрожжей Saccharomyces cerevisiae методами ферментативного и щелочного гидролиза. Адъювантные свойства исследовали на мышах линии BALB/c. Для иммунизации в качестве антигена использовали рекомбинантный белок RBD (рецептор-связывающий домен поверхностного S-белка коронавируса SARS-CoV-2, вариант B.1.617.2 (Delta)). В качестве антигенов для иммуноферментного анализа при определении титров специфических антител использовали рекомбинантный RBD (варианты (Wuhan-Hu-1) и B.1.617.2 (Delta)) и рекомбинантный спайковый белок (варианты (WuhanHu-1), B.1.617.2 (Delta) и B.1.1.529 (Omicron)). Титр вируснейтрализующих антител определяли реакцией вируснейтрализации с использованием штаммов SARS-CoV-2 Wuhan – hCoV-19/Australia/VIC01/2020 (Wuhan-Hu-1), Delta – hCoV-19/Russia/PSK-2804/2021 (Delta (B.1.617.2)) и Omicron 1 – hCoV-19/ Russia/Moscow171619-031221/2021 (Omicron (B.1.1.529)).</p></sec><sec><title>Результаты</title><p>Результаты. Разработанная схема позволяет получать до 200 мг препарата маннанов из 10 г клеточного дебриса дрожжей. Двукратная, с интервалом 14 суток, иммунизация RBD в дозе 50 мкг с использованием маннанов в дозах 40 и 10 мкг вызывала наработку специфических антител в титрах от 1:2477330 до 1:188360. Титр нейтрализующих антител для штамма Delta – hCoV-19/Russia/PSK-2804/2021 при использовании маннанов в дозе 40 мкг/мышь составил 1:485. Исследование токсических свойств показало, что полученный препарат относится к группе малотоксичных веществ.</p></sec><sec><title>Заключение</title><p>Заключение. Разработана схема получения малотоксичного препарата маннанов из дрожжей Saccharomyces cerevisiae. Наибольшая адъювантная активность достигалась при использовании маннанов в дозе 40 мкг/мышь. Сыворотки, полученные от иммунизированных животных, нейтрализовали как гомологичные, так и гетерологичные штаммы SARS-CoV-2.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Background</title><p>Background. Polysaccharides are known to possess adjuvant properties, they are biodegradable, safe, and are of low-labor production. In this regard, the development of polysaccharide-based adjuvants is an urgent task.</p></sec><sec><title>The aim</title><p>The aim. To develop a method for obtaining mannans from the cell walls of Saccharomyces cerevisiae yeast and to study their adjuvant properties using subunit vaccine model.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The preparation of mannans was obtained from the Saccharomyces cerevisiae yeast by enzymatic and alkaline hydrolysis. Its adjuvant properties were assessed in BALB/c mice immunized with the recombinant receptor-binding domain (RBD) of the SARS-CoV-2 (S) protein (Delta (B.1.617.2)). The titers of specific antibodies in the blood sera were determined by ELISA assays using the recombinant RBD (Wuhan-Hu-1 and Delta), and the recombinant (S) protein (Wuhan-Hu-1, Delta and Omicron) as antigens. The titers of virus-neutralizing antibodies were determined using virus-neutralization tests with the SARS-CoV-2 virus strains Wuhan – hCoV19/Australia/VIC01/2020 (Wuhan-Hu-1), Delta – hCoV-19/Russia/PSK-2804/2021 (Delta (B.1.617.2)), and Omicron 1 – hCoV-19/Russia/Moscow171619-031221/2021 (Omicron (B.1.1.529)).</p></sec><sec><title>Results</title><p>Results. The developed scheme allowed for obtaining up to 200 mg of mannans from 10 g of yeast cell debris. Double, with a two-week interval, immunization with RBD (50 μg) in combination with mannans (40 μg and 10 μg) induced the production of specific antibodies in titers from 1:2477330 to 1:188360. The titer of virus-neutralizing antibodies to the Delta – hCoV-19/Russia/PSK-2804/2021 was 1:485 (40 μg of mannans per mouse).</p></sec><sec><title>Conclusions</title><p>Conclusions. We developed a scheme for obtaining a low-toxic preparation of mannans from the Saccharomyces cerevisiae yeast. The highest adjuvant activity was achieved when using mannans at the dose of 40 µg per mouse. Blood sera obtained from the immunized animals neutralized both homologous and heterologous SARS-CoV-2 strains.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>полисахариды</kwd><kwd>маннаны</kwd><kwd>адъюванты</kwd><kwd>RBD</kwd><kwd>SARS-CоV-2</kwd><kwd>антитела</kwd><kwd>токсичность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>polysaccharides</kwd><kwd>mannans</kwd><kwd>adjuvants</kwd><kwd>RBD</kwd><kwd>SARS-CoV-2</kwd><kwd>antibodies</kwd><kwd>toxicity</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках Государственного задания, тема ГЗ-1/22 «Поиск и фармако-токсикологическое исследование новых вакцинных адьювантов».</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">Sharma O, Sultan AA, Ding H, Triggle CR. 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