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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">10.21055/0370-1069-2023-1-105-110</article-id><article-id custom-type="elpub" pub-id-type="custom">microbe-1795</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>Получение и характеристика гибридом-продуцентов моноклональных антител к антигенам коронавируса SARS-CоV-2</article-title><trans-title-group xml:lang="en"><trans-title>Obtaining and Characterization of Hybridomas Producing Monoclonal Antibodies against Coronavirus SARS-CоV-2</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5429-6295</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Куклина</surname><given-names>Г. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuklina</surname><given-names>G. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Российская Федерация, 610017, Киров, Октябрьский пр-т, 119</p></bio><bio xml:lang="en"><p>119, Oktyabrsky Avenue, Kirov, 610017, Russian Federation</p></bio><email xlink:type="simple">23527@mil.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/0000-0002-2881-4730</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ипатов</surname><given-names>С. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Ipatov</surname><given-names>S. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Российская Федерация, 610017, Киров, Октябрьский пр-т, 119</p></bio><bio xml:lang="en"><p>119, Oktyabrsky Avenue, Kirov, 610017, Russian Federation</p></bio><email xlink:type="simple">23527@mil.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/0000-0001-5164-3645</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Горшков</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Gorshkov</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Российская Федерация, 610017, Киров, Октябрьский пр-т, 119</p></bio><bio xml:lang="en"><p>119, Oktyabrsky Avenue, Kirov, 610017, Russian Federation</p></bio><email xlink:type="simple">23527@mil.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/0000-0001-8277-3573</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Печенкин</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Pechenkin</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Печенкин Денис Валериевич</p><p>Российская Федерация, 610017, Киров, Октябрьский пр-т, 119</p></bio><bio xml:lang="en"><p>Denis V. Pechenkin</p><p>119, Oktyabrsky Avenue, Kirov, 610017, Russian Federation</p></bio><email xlink:type="simple">23527@mil.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/0000-0003-3133-1921</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Еремкин</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Eremkin</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Российская Федерация, 610017, Киров, Октябрьский пр-т, 119</p></bio><bio xml:lang="en"><p>119, Oktyabrsky Avenue, Kirov, 610017, Russian Federation</p></bio><email xlink:type="simple">23527@mil.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>Кузнецовский</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuznetsovsky</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Российская Федерация, 610017, Киров, Октябрьский пр-т, 119</p></bio><bio xml:lang="en"><p>119, Oktyabrsky Avenue, Kirov, 610017, Russian Federation</p></bio><email xlink:type="simple">23527@mil.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>Туманов</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Tumanov</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Российская Федерация, 610017, Киров, Октябрьский пр-т, 119</p></bio><bio xml:lang="en"><p>119, Oktyabrsky Avenue, Kirov, 610017, Russian Federation</p></bio><email xlink:type="simple">23527@mil.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>Дармов</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Darmov</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Российская Федерация, 610017, Киров, Октябрьский пр-т, 119</p></bio><bio xml:lang="en"><p>119, Oktyabrsky Avenue, Kirov, 610017, Russian Federation</p></bio><email xlink:type="simple">23527@mil.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Филиал ФГБУ «48 Центральный научно-исследовательский институт» Министерства обороны Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Affiliated Branch of the “48th Central Research Institute” of the Ministry of Defense of the Russian Federation</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>01</day><month>05</month><year>2023</year></pub-date><volume>0</volume><issue>1</issue><fpage>105</fpage><lpage>110</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Куклина Г.В., Ипатов С.С., Горшков А.С., Печенкин Д.В., Еремкин А.В., Кузнецовский А.В., Туманов А.С., Дармов И.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Куклина Г.В., Ипатов С.С., Горшков А.С., Печенкин Д.В., Еремкин А.В., Кузнецовский А.В., Туманов А.С., Дармов И.В.</copyright-holder><copyright-holder xml:lang="en">Kuklina G.V., Ipatov S.S., Gorshkov A.S., Pechenkin D.V., Eremkin A.V., Kuznetsovsky A.V., Tumanov A.S., Darmov I.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://journal.microbe.ru/jour/article/view/1795">https://journal.microbe.ru/jour/article/view/1795</self-uri><abstract><p>Цель работы – получить и охарактеризовать гибридомы-продуценты моноклональных антител к антигенам коронавируса SARS‑CoV‑2, перспективных для конструирования диагностических иммунохимических тестов. Материалы и методы. Для иммунизации мышей линии BALB/c использовали рекомбинантные антигены NP и RBD SARS-CоV-2. Антигенные препараты сорбировали на геле алюминия гидроксида и вводили подкожно мышам линии BALB/c с интервалом 7 дней. Слияние иммунных спленоцитов с клетками миеломной опухоли SP2/0-Ag14 проводили с помощью ПЭГ -1450. Отбор гибридом, секретирующих анти-NP- и анти-RBD-антитела, проводили методом непрямого иммуноферментного анализа (ИФА) в 96-луночных планшетах с сорбированными препаратами NP и RBD. Для клонирования гибридом использовали метод предельных разведений. Изучение секреторных свойств полученных клонов проводили при культивировании in vitro в 24-луночных культуральных планшетах. Иммуноасцитические жидкости получали при культивировании гибридных клеток в брюшной полости мышей линии BALB/c. Моноклональные антитела очищали методом аффинной хроматографии на сорбенте протеин А-сефарозе, конъюгировали с пероксидазой хрена и проверяли возможность использования в сэндвич-варианте ИФА для детекции инактивированного коронавируса SARS-CоV-2 штамма «Изолят В». Результаты и обсуждение. В результате гибридизаций и отбора клонов получены гибридомы-продуценты моноклональных антител к NP и RBD коронавируса SARS-CоV-2. При культивировании in vitro и in vivo клоны характеризовались стабильностью пролиферативной и антителопродуцирующей активности. Использование моноклонального антитела 415D12 в качестве захватывающего и конъюгированного с пероксидазой хрена 411D12 в качестве детекторного моноклонального антитела в ИФА позволяет выявить коронавирус SARS-CоV-2 в минимальной концентрации 1·103 БОЕ /мл.</p></abstract><trans-abstract xml:lang="en"><p>The aim of the work was to obtain and characterize hybridomas producing monoclonal antibodies to antigens of coronavirus SARS‑CoV‑2, promising for the construction of diagnostic immunochemical tests. Materials and methods. Recombinant nucleocapsid and receptor binding fragment of spike protein of SARS‑CoV‑2 were used for immunization of BALB/c mice. Antigens were absorbed on aluminium hydroxide gel and injected subcutaneously to BALB/c mice at a 7-day-interval. Immune splenocytes and myeloma cells SP2/0-Ag14 were fused by polyethylene glycol 1450. Cell cultures producing specific antibodies against nucleocapsid and receptor binding fragment were selected applying indirect ELISA in 96-well plates sensitized by desired antigens. Clones of hybridomas were obtained using the method of limiting dilutions. Production properties were studied through in vitro cultivation in 24-well culture plates. Immune-ascitic fluids were collected during the cultivation of hybrid cells in peritoneal cavities of BALB/c mice. Monoclonal antibodies were purified by affinity chromatography on protein A sepharose sorbent, conjugated with horseradish peroxidase, and tested for the possibility to be used in sandwich ELISA for detection of inactivated SARS‑CoV‑2 coronavirus strain “Isolate B”. Results and discussion. As a result of hybridization and selection of clones, hybridomas producing monoclonal antibodies to nucleocapsid and receptor binding fragment of SARS‑CoV‑2 have been obtained. During the in vitro and in vivo cultivation the clones maintained the consistent proliferative and antibody producing activity. The application of monoclonal antibody 415D12 as a capture one and 411D12 antibody conjugated with horseradish peroxidase as a detector antibody in ELISA allows for identifying SARS‑CoV‑2 coronavirus at a minimum concentration of 1·103 PFU per ml.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>коронавирус SARS-CоV-2</kwd><kwd>гибридомы</kwd><kwd>моноклональные антитела</kwd><kwd>иммуноферментный анализ</kwd></kwd-group><kwd-group xml:lang="en"><kwd>SARS-CоV-2 coronavirus</kwd><kwd>hybridomas</kwd><kwd>monoclonal antibodies</kwd><kwd>enzyme linked immunosorbent assay</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">SARS‑CoV‑2-related data provided by the Protein Domains resource [Электронный ресурс]. 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