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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Acta Naturae</journal-id><journal-title-group><journal-title xml:lang="en">Acta Naturae</journal-title><trans-title-group xml:lang="ru"><trans-title>Acta Naturae</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2075-8251</issn><publisher><publisher-name xml:lang="en">Acta Naturae Ltd</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">10341</article-id><article-id pub-id-type="doi">10.32607/20758251-2018-10-2-30-36</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Research Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Экспериментальные статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">The Development and Study of Recombinant Immunoglobulin A to Hemagglutinins of the Influenza Virus</article-title><trans-title-group xml:lang="ru"><trans-title>Получение и исследование свойств рекомбинантного иммуноглобулина А, специфичного к гемагглютининам вируса гриппа</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Aliev</surname><given-names>T. K.</given-names></name><name xml:lang="ru"><surname>Алиев</surname><given-names>Т. К.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>ta12345@list.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Dement’yeva</surname><given-names>I. G.</given-names></name><name xml:lang="ru"><surname>Дементьева</surname><given-names>И. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>ta12345@list.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Toporova</surname><given-names>V. A.</given-names></name><name xml:lang="ru"><surname>Торопова</surname><given-names>В. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>ta12345@list.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Argentova</surname><given-names>V. V.</given-names></name><name xml:lang="ru"><surname>Аргентова</surname><given-names>В. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>ta12345@list.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Pozdnyakova</surname><given-names>L. P.</given-names></name><name xml:lang="ru"><surname>Позднякова</surname><given-names>Л. П.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>ta12345@list.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Bokov</surname><given-names>M. N.</given-names></name><name xml:lang="ru"><surname>Боков</surname><given-names>М. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>ta12345@list.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Votchitseva</surname><given-names>Yu. A.</given-names></name><name xml:lang="ru"><surname>Вотчицева</surname><given-names>Ю. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>ta12345@list.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Dolgikh</surname><given-names>D. A.</given-names></name><name xml:lang="ru"><surname>Долгих</surname><given-names>Д. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>ta12345@list.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Varfolomeyev</surname><given-names>S. D.</given-names></name><name xml:lang="ru"><surname>Варфоломеев</surname><given-names>С. Д.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>ta12345@list.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sveshnikov</surname><given-names>P. G.</given-names></name><name xml:lang="ru"><surname>Свешников</surname><given-names>П. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>ta12345@list.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kirpichnikov</surname><given-names>M. P.</given-names></name><name xml:lang="ru"><surname>Кирпичников</surname><given-names>М. П.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>ta12345@list.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Lomonosov Moscow State University</institution></aff><aff><institution xml:lang="ru">Московский государственный университет им. М.В. Ломоносова</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Russian Research Center for Molecular Diagnostics and Therapy</institution></aff><aff><institution xml:lang="ru">Всероссийский научный центр молекулярной диагностики и лечения</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт биоорганической химии имени академиков М.М. Шемякина и Ю.А. Овчинникова РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2018-06-15" publication-format="electronic"><day>15</day><month>06</month><year>2018</year></pub-date><volume>10</volume><issue>2</issue><issue-title xml:lang="en">VOL 10, NO2 (2018)</issue-title><issue-title xml:lang="ru">ТОМ 10, №2 (2018)</issue-title><fpage>30</fpage><lpage>36</lpage><history><date date-type="received" iso-8601-date="2020-01-17"><day>17</day><month>01</month><year>2020</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2018, Aliev T.K., Dement’yeva I.G., Toporova V.A., Argentova V.V., Pozdnyakova L.P., Bokov M.N., Votchitseva Y.A., Dolgikh D.A., Varfolomeyev S.D., Sveshnikov P.G., Kirpichnikov M.P.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2018, Алиев Т.К., Дементьева И.Г., Торопова В.А., Аргентова В.В., Позднякова Л.П., Боков М.Н., Вотчицева Ю.А., Долгих Д.А., Варфоломеев С.Д., Свешников П.Г., Кирпичников М.П.</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="en">Aliev T.K., Dement’yeva I.G., Toporova V.A., Argentova V.V., Pozdnyakova L.P., Bokov M.N., Votchitseva Y.A., Dolgikh D.A., Varfolomeyev S.D., Sveshnikov P.G., Kirpichnikov M.P.</copyright-holder><copyright-holder xml:lang="ru">Алиев Т.К., Дементьева И.Г., Торопова В.А., Аргентова В.В., Позднякова Л.П., Боков М.Н., Вотчицева Ю.А., Долгих Д.А., Варфоломеев С.Д., Свешников П.Г., Кирпичников М.П.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://actanaturae.ru/2075-8251/article/view/10341">https://actanaturae.ru/2075-8251/article/view/10341</self-uri><abstract xml:lang="en"><p>We obtained recombinant variants of human antibody FI6 broadly specific to hemagglutinins of the influenza A virus. On the basis of a bi-promoter (CMV, hEF1-HTLV) vector, we developed genetic constructs for the expression of the heavy and light chains of the immunoglobulins of IgA1-, IgA2m1-, and IgG-isotypes. Following transfection and selection, stable Chinese hamster ovary (CHO) cell lines were produced. The antibodies of IgA1-, IgA2m1-, and IgG-isotypes were purified from culture media. We performed an immunochemical characterization and studied their interactions with influenza A strains of the H1N1- and H3N2-subtypes. It was shown that recombinant FI6 variants of the IgA-isotype retain the properties of the parental IgG antibody to demonstrate specificity to all the strains tested. The strongest binding was observed for the H1N1 subtype, which belongs to hemagglutinins of phylogenetic group I.</p></abstract><trans-abstract xml:lang="ru"><p>Получены рекомбинантные варианты человеческого антитела FI6, проявляющие широкую специфичность к гемагглютининам вируса гриппа А. На основе бипромоторного вектора (CMV, hEF1-HTLV) получены генетические конструкции, экспрессирующие тяжелую и легкую цепи иммуноглобулинов IgA1-,IgA2m1- и IgG-изотипов. В результате трансфекции и селекции клеток СНО яичников китайского хомячка получены клеточные линии, стабильно экспрессирующие указанные антитела. Иммуноглобулины изотипов IgA1, IgA2m1 и IgG выделены из культуральной жидкости. Определены иммунохимические характеристики антител, изучено взаимодействие рекомбинантных иммуноглобулинов со штаммами вируса гриппа А подтипов H1N1 и H3N2. Показано, что рекомбинантные варианты FI6 IgA-изотипа проявляют, как и исходное антитело, специфичность в отношении всех исследуемых штаммов. При этом наибольший уровень связывания достигается для подтипа H1N1, относящегося к гемагглютининам филогенетической группы I</p></trans-abstract><kwd-group xml:lang="en"><kwd>Influenza A virus</kwd><kwd>broadly neutralizing antibodies</kwd><kwd>immunoglobulin A</kwd><kwd>IgA1</kwd><kwd>IgA2m1</kwd><kwd>recombinant antibodies</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>вирус гриппа А</kwd><kwd>широко нейтрализующие антитела</kwd><kwd>иммуноглобулин А</kwd><kwd>IgA1</kwd><kwd>IgA2m1</kwd><kwd>рекомбинантные антитела</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This study was supported by the Ministry of Education and Science of the Russian Federation (No. 14.607.21.0060) within the framework of a Federal Program “Research and Developments for Priority Areas of the Development of Scientific and Technological Complex in Russia for 2014–2020 years” (unique project identification RFMEFI60714X0060).</funding-statement><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке субсидии (соглашение № 14.607.21.0060), выделяемой Министерством образования и науки Российской Федерации в рамках реализации Федеральной целевой программы «Исследования и разработки по приоритетным направлениям развития научно-технологического комплекса России на 2014–2020 годы» (уникальный идентификатор проекта RFMEFI60714X0060).</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>[1] Gerhard W. // Curr. 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