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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">biopreparat</journal-id><journal-title-group><journal-title xml:lang="ru">БИОпрепараты. Профилактика, диагностика, лечение</journal-title><trans-title-group xml:lang="en"><trans-title>Biological Products. Prevention, Diagnosis, Treatment</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2221-996X</issn><issn pub-type="epub">2619-1156</issn><publisher><publisher-name>Scientific Centre for Expert Evaluation of Medicinal Products</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.30895/2221-996X-2024-24-4-389-402</article-id><article-id custom-type="elpub" pub-id-type="custom">biopreparat-595</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>ТЕМА НОМЕРА: ИННОВАЦИОННЫЕ ИММУНОБИОЛОГИЧЕСКИЕ ПРЕПАРАТЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ISSUE TOPIC: INNOVATIVE IMMUNOBIOLOGICALS</subject></subj-group></article-categories><title-group><article-title>Определение специфической активности ротавирусной вакцины на основе вирусоподобных частиц с использованием иммуноферментного анализа: разработка и валидация методики</article-title><trans-title-group xml:lang="en"><trans-title>Enzyme-linked immunosorbent assay to determine the potency of a rotavirus vaccine based on virus-like particles: analytical procedure development and validation</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5274-224X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Филатов</surname><given-names>И. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Filatov</surname><given-names>I. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Филатов Илья Евгеньевич</p><p>ул. Гамалеи, д. 18, Москва, 123098</p></bio><bio xml:lang="en"><p>Ilya E. Filatov</p><p>18 Gamaleya St., Moscow 123098</p></bio><email xlink:type="simple">filat69rus@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/0009-0003-1545-3969</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Силаенкова</surname><given-names>М. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Silaenkova</surname><given-names>M. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Силаенкова Мария Михайловна</p><p>ул. Гамалеи, д. 18, Москва, 123098</p></bio><bio xml:lang="en"><p>Maria M. Silaenkova</p><p>18 Gamaleya St., Moscow 123098</p></bio><email xlink:type="simple">surgeon14_07_1994@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/0000-0003-2150-5764</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Цибезов</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tsibezov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Цибезов Валерий Владимирович, канд. биол. наук</p><p>ул. Гамалеи, д. 18, Москва, 123098</p></bio><bio xml:lang="en"><p>Valeriy V. Tsibezov, Cand. Sci. (Biol.)</p><p>18 Gamaleya St., Moscow 123098</p></bio><email xlink:type="simple">tsibezov@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/0009-0002-8179-1379</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Баландина</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Balandina</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Баландина Марина Владимировна, канд. биол. наук</p><p>ул. Гамалеи, д. 18, Москва, 123098</p></bio><bio xml:lang="en"><p>Marina V. Balandina, Cand. Sci. (Biol.)</p><p>18 Gamaleya St., Moscow 123098</p></bio><email xlink:type="simple">mbalandina77@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/0009-0006-9608-4713</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Норкина</surname><given-names>С. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Norkina</surname><given-names>S. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Норкина Светлана Николаевна, канд. биол. наук</p><p>ул. Гамалеи, д. 18, Москва, 123098</p></bio><bio xml:lang="en"><p>Svetlana N. Norkina, Cand. Sci. (Biol.)</p><p>18 Gamaleya St., Moscow 123098</p></bio><email xlink:type="simple">snork9@list.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/0000-0002-5757-3809</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Латышев</surname><given-names>О. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Latyshev</surname><given-names>O. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Латышев Олег Евгеньевич, канд. биол. наук</p><p>ул. Гамалеи, д. 18, Москва, 123098</p></bio><bio xml:lang="en"><p>Oleg E. Latyshev, Cand. Sci. (Biol.)</p><p>18 Gamaleya St., Moscow 123098</p></bio><email xlink:type="simple">oleglat80@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/0000-0002-0723-9749</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Елисеева</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Eliseeva</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Елисеева Олеся Васильевна, канд. биол. наук</p><p>ул. Гамалеи, д. 18, Москва, 123098</p></bio><bio xml:lang="en"><p>Olesja V. Eliseeva, Cand. Sci. (Biol.)</p><p>18 Gamaleya St., Moscow 123098</p></bio><email xlink:type="simple">olesenka80@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/0000-0002-1734-5369</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Черепушкин</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Cherepushkin</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Черепушкин Станислав Андреевич</p><p>ул. Гамалеи, д. 18, Москва, 123098</p></bio><bio xml:lang="en"><p>Stanislav A. Cherepushkin</p><p>18 Gamaleya St., Moscow 123098</p></bio><email xlink:type="simple">cherepushkin1@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/0000-0002-6141-9361</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гребенникова</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Grebennikova</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гребенникова Татьяна Владимировна, д-р биол. наук, проф., член-корр. РАН</p><p>ул. Гамалеи, д. 18, Москва, 123098</p></bio><bio xml:lang="en"><p>Tatyana V. Grebennikova, Dr. Sci. (Biol.), Prof., Corresponding Member of the Russian Academy of Sciences</p><p>18 Gamaleya St., Moscow 123098</p></bio><email xlink:type="simple">t_grebennikova@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное учреждение «Национальный исследовательский центр эпидемиологии и микробиологии имени почетного академика Н.Ф. Гамалеи» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Centre for Epidemiology and Microbiology named after honorary academician N.F. Gamaleya</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>22</day><month>12</month><year>2024</year></pub-date><volume>24</volume><issue>4</issue><fpage>389</fpage><lpage>402</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Филатов И.Е., Силаенкова М.М., Цибезов В.В., Баландина М.В., Норкина С.Н., Латышев О.Е., Елисеева О.В., Черепушкин С.А., Гребенникова Т.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Филатов И.Е., Силаенкова М.М., Цибезов В.В., Баландина М.В., Норкина С.Н., Латышев О.Е., Елисеева О.В., Черепушкин С.А., Гребенникова Т.В.</copyright-holder><copyright-holder xml:lang="en">Filatov I.E., Silaenkova M.M., Tsibezov V.V., Balandina M.V., Norkina S.N., Latyshev O.E., Eliseeva O.V., Cherepushkin S.A., Grebennikova T.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://www.biopreparations.ru/jour/article/view/595">https://www.biopreparations.ru/jour/article/view/595</self-uri><abstract><sec><title>ВВЕДЕНИЕ</title><p>ВВЕДЕНИЕ. Создание вакцин на основе вирусоподобных частиц (virus-like particles, VLP), состоящих из рекомбинантных белков ротавируса типа А человека, имитирующих структуру нативного вируса, но не обладающих инфекционной активностью, является перспективным направлением для вакцинопрофилактики. Для оценки специфической активности таких вакцин оптимальным представляется применение метода иммуноферментного анализа (ИФА) для определения титра специфических IgG-антител к белкам ротавируса А в образцах сыворотки крови иммунизированных животных.</p></sec><sec><title>ЦЕЛЬ</title><p>ЦЕЛЬ. Разработка и валидация методики оценки специфической активности ротавирусной вакцины на основе VLP с использованием метода ИФА для определения уровня антител к белкам VP2/6 ротавируса А в образцах сыворотки крови иммунизированных морских свинок.</p></sec><sec><title>МАТЕРИАЛЫ И МЕТОДЫ</title><p>МАТЕРИАЛЫ И МЕТОДЫ. Оценку специфической активности ротавирусной вакцины на основе VLP проводили in vivo с использованием трех видов экспериментальных животных: мышей линии BALB/c, морских свинок породы агути и новорожденных карликовых свиней. Вакцину в дозе 30 мкг вводили животным трехкратно внутримышечно. Оценивали уровни специфических иммуноглобулинов класса G (IgG) к белкам VP2/6 ротавируса А и вируснейтрализующих антител (ВНА) в образцах сыворотки крови животных методом непрямого ИФА и в реакции нейтрализации соответственно. Определяли среднее геометрическое значение титров (СГТ) антител. Валидацию методики оценки специфической активности проводили на двух сериях вакцины с использованием стандартных методов статистического анализа.</p></sec><sec><title>РЕЗУЛЬТАТЫ</title><p>РЕЗУЛЬТАТЫ. Проведено сравнение уровней специфических IgG-антител к белкам VP2/6 и ВНА к ротавирусу типа A через 14 сут после первой, второй и третьей иммунизаций. Значительное увеличение титра антител и статистически значимые различия (p&lt;0,05) между группами наблюдались уже после второй иммунизации. Двукратная иммунизация вакциной приводила к образованию IgG-антител и ВНА у новорожденных карликовых свиней (СГТ антител — 200,0 и 108,9 соответственно) и морских свинок (СГТ антител — 12800 и 2600 соответственно). У иммунизированных мышей наблюдался значительный рост уровня специфических IgG-антител (СГТ — 572440). В качестве релевантной модели для валидации методики ИФА для определения специфической активности были выбраны морские свинки при использовании двукратной схемы иммунизации. По результатам валидационных испытаний двух серий вакцины установлено, что метод ИФА удовлетворял критериям приемлемости по характеристикам: специфичность, повторяемость (коэффициент вариации не более 15% — для 1 и 2 серий вакцины 12,4 и 7,7%) и промежуточная прецизионность (коэффициент вариации не более 15% — для 1 и 2 серий вакцины 6,9 и 10,2%).</p></sec><sec><title>ВЫВОДЫ</title><p>ВЫВОДЫ. Разработана и валидирована методика оценки специфической активности ротавирусной вакцины на основе VLP с использованием ИФА. Метод ИФА может быть использован для контроля показателя качества «Специфическая активность» ротавирусной вакцины на основе VLP.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>INTRODUCTION</title><p>INTRODUCTION. Rotavirus vaccines based on virus-like particles (VLPs), non-infectious recombinant proteins of human rotavirus A that mimic the structure of the native virus, show promise for preventive vaccination. Presumably, the optimal method to determine the potency of VLP-based rotavirus vaccines is the enzyme-linked immunosorbent assay (ELISA) method used to measure the titre of specific IgG antibodies to rotavirus A proteins in serum samples from vaccinated animals.</p></sec><sec><title>AIM</title><p>AIM. This study aimed at assessing the potency of a VLP-based rotavirus vaccine by developing and validating an analytical procedure using ELISA to determine the levels of antibodies to the VP2 and VP6 proteins of rotavirus A in serum samples from vaccinated guinea pigs.</p></sec><sec><title>MATERIALS AND METHODS</title><p>MATERIALS AND METHODS. The potency of the VLP-based rotavirus vaccine was determined in vivo in three types of experimental animals, including BALB/c mice, agouti guinea pigs, and newborn minipigs. The animals received three intramuscular injections of the vaccine at a dose of 30 µg. This study used the indirect ELISA method to quantify VP2- and VP6-specific immunoglobulin G (IgG) antibodies and the virus-neutralisation test to measure neutralising antibodies (nAbs) to rotavirus A in animal serum samples. The study involved calculating the geometric mean titres (GMTs) of antibodies. The authors validated the analytical procedure for potency assessment on two batches of the vaccine using standard statistical analysis methods.</p></sec><sec><title>RESULTS</title><p>RESULTS. The study compared VP2- and VP6-specific IgG and nAb levels 14 days after the first, second, and third vaccinations. The authors observed a significant increase in antibody titres and statistically significant (p&lt;0.05) differences between groups as early as after the second vaccination. Double vaccination induced rotavirus-specific IgGs and nAbs in newborn minipigs (GMTs of 200.0 and 108.9, respectively) and guinea pigs (GMTs of 12,800 and 2,600, respectively). Vaccinated mice demonstrated a significant increase in rotavirus-specific IgG levels (GMT of 572,440). Guinea pigs were selected as a relevant model for validating the ELISA-based potency assessment procedure. The validation study used a double vaccination scheme. The validation using two batches of the VLP-based rotavirus vaccine indicated that the ELISA-based analytical procedure met the acceptance criteria for specificity, repeatability, and intermediate precision. The repeatability assessment resulted in a coefficient of variation (CV) of 12.4% for batch 1 and a CV of 7.7% for batch 2, whereas the intermediate precision assessment showed a CV of 6.9% for batch 1 and a CV of 10.2% for batch 2, which were within the acceptance criteria for both validation parameters (CV≤15%).</p></sec><sec><title>CONCLUSIONS</title><p>CONCLUSIONS. The authors developed and validated an ELISA-based analytical procedure for assessing the potency of VLP-based preventive rotavirus vaccines. According to the study results, ELISA is applicable to the control of the potency of VLP-based preventive rotavirus vaccines.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>ротавирус типа А человека</kwd><kwd>вирусоподобные частицы</kwd><kwd>VLP</kwd><kwd>ротавирусная вакцина</kwd><kwd>специфическая активность</kwd><kwd>иммуноферментный анализ</kwd><kwd>реакция нейтрализации</kwd><kwd>валидация</kwd><kwd>in vivo</kwd></kwd-group><kwd-group xml:lang="en"><kwd>human rotavirus A</kwd><kwd>virus-like particles</kwd><kwd>VLP</kwd><kwd>rotavirus vaccine</kwd><kwd>potency</kwd><kwd>enzyme-linked immunosorbent assay</kwd><kwd>virus neutralisation test</kwd><kwd>validation</kwd><kwd>in vivo</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках Государственной тематики Минздрава России «Разработка подходов для создания вакцины против инфекции, вызванной ротавирусом типа «А» (регистрационный номер AAAA-A18-118051490143-3)</funding-statement><funding-statement xml:lang="en">The study was conducted as part of the State Programme of the Ministry of Health of the Russian Federation ‘Development of approaches to create a vaccine against rotavirus A infection’ (registration No. AAAA-A18-118051490143-3)</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">Estes MK. 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