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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">microbe</journal-id><journal-title-group><journal-title xml:lang="ru">Проблемы особо опасных инфекций</journal-title><trans-title-group xml:lang="en"><trans-title>Problems of Particularly Dangerous Infections</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0370-1069</issn><issn pub-type="epub">2658-719X</issn><publisher><publisher-name>Russian Research Anti-Plague Institute “Microbe”</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21055/0370-1069-2024-1-148-153</article-id><article-id custom-type="elpub" pub-id-type="custom">microbe-1955</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 ARTICLES</subject></subj-group></article-categories><title-group><article-title>Оценка воздействия полициклических производных каркасного ряда на репликативные свойства вируса SARS-CoV-2 в эксперименте in vitro</article-title><trans-title-group xml:lang="en"><trans-title>Assessment of the Impact of Polycyclic Derivatives of the Frame Series on the Replicative Properties of the SARS-CoV-2 Virus in an in vitro Experiment</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>Залевская</surname><given-names>О. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Zaleuskaya</surname><given-names>O. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Залевская Ольга Сергеевна, </p><p>220114, Минск, ул. Филимонова, 23</p></bio><bio xml:lang="en"><p>Olga S. Zalevskaya, </p><p>23, Filimonova St., Minsk, 220114</p></bio><email xlink:type="simple">olgazal88@mail.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>Ширяев</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Shiryaev</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>443100, Самара, ул. Молодогвардейская, 244</p></bio><bio xml:lang="en"><p>443100, Самара, ул. Молодогвардейская, 244</p></bio><email xlink:type="simple">dcfs@samgtu.ru</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>Климочкин</surname><given-names>Ю. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Klimochkin</surname><given-names>Yu. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>443100, Самара, ул. Молодогвардейская, 244</p></bio><bio xml:lang="en"><p>443100, Самара, ул. Молодогвардейская, 244</p></bio><email xlink:type="simple">dcfs@samgtu.ru</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>Семенов</surname><given-names>С. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Semyonov</surname><given-names>S. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>220114, Минск, ул. Филимонова, 23</p></bio><bio xml:lang="en"><p>23, Filimonova St., Minsk, 220114</p></bio><email xlink:type="simple">rrpcem@belriem.by</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>Родионова</surname><given-names>Л. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Rodionova</surname><given-names>L. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>220114, Минск, ул. Филимонова, 23</p></bio><bio xml:lang="en"><p>23, Filimonova St., Minsk, 220114</p></bio><email xlink:type="simple">rrpcem@belriem.by</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>Климович</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Klimovich</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>220114, Минск, ул. Филимонова, 23</p></bio><bio xml:lang="en"><p>23, Filimonova St., Minsk, 220114</p></bio><email xlink:type="simple">rrpcem@belriem.by</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>Лютина</surname><given-names>Я. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Liutina</surname><given-names>Ya. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>220114, Минск, ул. Филимонова, 23</p></bio><bio xml:lang="en"><p>23, Filimonova St., Minsk, 220114</p></bio><email xlink:type="simple">rrpcem@belriem.by</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>Леонова</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Leonova</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>443100, Самара, ул. Молодогвардейская, 244</p></bio><bio xml:lang="en"><p>443100, Самара, ул. Молодогвардейская, 244</p></bio><email xlink:type="simple">dcfs@samgtu.ru</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>Красько</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Kras’ko</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>220114, Минск, ул. Филимонова, 23</p></bio><bio xml:lang="en"><p>23, Filimonova St., Minsk, 220114</p></bio><email xlink:type="simple">rrpcem@belriem.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ГУ «Республиканский научно-практический центр эпидемиологии и микробиологии»</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Republican Scientific and Practical Center of Epidemiology and Microbiology</institution><country>Belarus</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБОУ ВО «Самарский государственный технический университет»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Samara State Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>04</day><month>04</month><year>2024</year></pub-date><volume>0</volume><issue>1</issue><fpage>148</fpage><lpage>153</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Залевская О.С., Ширяев В.А., Климочкин Ю.Н., Семенов С.Ф., Родионова Л.П., Климович О.В., Лютина Я.В., Леонова М.В., Красько А.Г., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Залевская О.С., Ширяев В.А., Климочкин Ю.Н., Семенов С.Ф., Родионова Л.П., Климович О.В., Лютина Я.В., Леонова М.В., Красько А.Г.</copyright-holder><copyright-holder xml:lang="en">Zaleuskaya O.S., Shiryaev V.A., Klimochkin Y.N., Semyonov S.F., Rodionova L.P., Klimovich O.V., Liutina Y.V., Leonova M.V., Kras’ko A.G.</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://journal.microbe.ru/jour/article/view/1955">https://journal.microbe.ru/jour/article/view/1955</self-uri><abstract><p>Цель работы – определение цитотоксичности и влияния полициклических производных каркасного ряда на репликативные свойства вируса SARS-CoV-2 в культуре клеток Vero-E6 in vitro.</p><sec><title>Материалы и методы</title><p>Материалы и методы. Изучено вирусингибирующее действие 50 производных адамантана и бицикло[3.3.1]нонана, имеющих карбоциклические и гетероциклические заместители. Исследования проводили на культуре клеток Vero-E6 методом оценки цитопатического действия вируса. Влияние соединений на репликативные свойства вируса SARS-CoV-2 оценивали по снижению титра вируса в присутствии соединений в сравнении с контролем. На основании значений титра вируса в присутствии ряда последовательно уменьшающихся концентраций соединения вычисляли 50 % эффективную концентрацию.</p></sec><sec><title>Результаты и обсуждение</title><p>Результаты и обсуждение. При исследовании полициклических производных каркасного ряда выявлено два соединения с антивирусными свойствами в отношении вируса SARS-CoV-2. Среди производных бицикло[3.3.1]нонана, содержащих гетероциклические фрагменты, ингибирующее действие в отношении вируса SARS-CoV-2 показало соединение № 15144. Защитное действие соединения проявлялось в максимально переносимой концентрации (МПК) (70,0 мкг/мл) и в ½ МПК (35,0 мкг/мл). Обнаружено снижение титров вируса под воздействием МПК на 0,95 lg ТЦД50/мл, в ½ МПК (35,0 мкг/мл) – на 0,35 lg ТЦД50/мл. Значение 50 % эффективной концентрации (ЕС50) соединения № 15144 составило 64,0 мкг/мл, отношение МПК/ЕС50 – 1,09. Менее выраженной антивирусной активностью обладало соединение № 14838 (производное адамантана, содержащее карбоциклические фрагменты). В результате исследований установлено, что образец № 14838 в дозе МПК (45,0 мкг/мл) снижает инфекционный титр на 0,78 lg ТЦД50/мл, в ½ МПК (22,5 мкг/мл) – на 0,15 lg ТЦД50/мл по сравнению с контролем. Значение ЕС50 соединения № 14838 составило 37,0 мкг/мл, отношение МПК/ЕС50 – 1,22.</p></sec></abstract><trans-abstract xml:lang="en"><p>The aim of the work was to determine the cytotoxicity and the influence of polycyclic derivatives of the framework series on the replicative properties of the SARS-CoV-2 virus in Vero-E6 cell culture in vitro. </p><sec><title>Materials and methods</title><p>Materials and methods. The virus inhibiting effect of 50 adamantane and bicyclo[3.3.1]nonane derivatives with carbocyclic and heterocyclic substituents was investigated. The studies were carried out on Vero-E6 cell culture by assessing the cytopathic effect of the virus. The impact of the compounds on the replicative properties of the SARS-CoV-2 virus was estimated by the decrease in virus titer in the presence of the compounds compared to the control. Based on the virus titer values in the presence of a series of successively decreasing concentrations of the compound, the 50 % effective concentration was calculated.</p></sec><sec><title>Results and discussion</title><p>Results and discussion. A study of polycyclic derivatives of the framework series has identified two compounds with antiviral properties against the SARS-CoV-2 virus. Among bicyclo[3.3.1]nonane derivatives containing heterocyclic fragments, compound No. 15144 has showed an inhibitory effect against the SARS-CoV-2 virus. The protective effect of the compound was manifested in maximum tolerable concentration (MTC) (70.0 μg/ml) and ½ MTC (35.0 µg/ml). A decrease in virus titers under the influence of MTC by 0.95 lg TCD50/ml, in ½ MTC (35.0 μg/ml) – by 0.35 lg TCID50/ml has been detected. The effective concentration (EC50) value of the compound No. 15144 was 64.0 μg/ml, the MTC/EC50 ratio was 1.09. Compound No. 14838 (adamantane derivative containing carbocyclic fragments) had less pronounced antiviral activity. As a result of research, it has been established that sample No. 14838 at a dose of MTC (45.0 μg/ml) reduces the infectious titer by 0.78 lg TCD50/ml, in ½ MTC (22.5 μg/ml) by 0.15 lg TCD50/ml compared to the control. The EC50 value of compound No. 14838 was 37.0 μg/ml, the MTC/EC50 ratio was 1.22.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>адамантан</kwd><kwd>бицикло[3.3.1]нонан</kwd><kwd>Vero-E6</kwd><kwd>COVID-19</kwd><kwd>SARS-CoV-2</kwd><kwd>репликативные свойства</kwd></kwd-group><kwd-group xml:lang="en"><kwd>adamantane</kwd><kwd>bicyclo[3.3.1]nonane</kwd><kwd>Vero-E6</kwd><kwd>COVID-19</kwd><kwd>SARS-CoV-2</kwd><kwd>replicative properties</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках международного проекта НИР «Рациональный дизайн производных гомоадамантана и бицикло[3.3.1]нонана как ингибиторов геликазы nsp13 SARSCoV-2» Белорусского республиканского фонда фундаментальных исследований (БРФФИ) (договор от 01.07.2021 № М21РМ-089) и Российского фонда фундаментальных исследований (РФФИ) (проект Бел_мол_а 20-53-04035).</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">Dinesh D.C., Chalupska D., Silhan J., Koutna E., Nencka R., Veverka V., Boura E. 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