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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">mimmun</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинская иммунология</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Immunology (Russia)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1563-0625</issn><issn pub-type="epub">2313-741X</issn><publisher><publisher-name>SPb RAACI</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.15789/1563-0625-FOT-2585</article-id><article-id custom-type="elpub" pub-id-type="custom">mimmun-2585</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>Особенности формирования поствакцинального гуморального иммунного ответа у лиц, перенесших COVID-19 разной степени тяжести</article-title><trans-title-group xml:lang="en"><trans-title>Features of post-vaccination humoral immune response in the persons who underwent COVID-19 of various severity</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7068-4071</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Иванова</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivanova</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Иванова Инна Александровна – кандидат биологических наук, ведущий научный сотрудник, врио заведующей лабораторией иммунологии.</p><p>344002, Ростов-на-Дону, ул. Максима Горького, 117/40</p><p>Тел.: 8 (863) 240-91-22</p></bio><bio xml:lang="en"><p>Inna A. Ivanova - PhD (Biology), Leading Research Associate, Acting Head, Laboratory of Immunology, Rostov-on-Don Anti-Plague Institute.</p><p>117/40 Maxim Gorky St Rostov-on-Don 344002</p><p>Phone: +7 (863) 240-91-22; Fax: +7 (863) 267-02-23</p></bio><email xlink:type="simple">ivanova_ia@antiplague.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/0000-0002-1103-4244</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Филиппенко</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Filippenko</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Филиппенко Анна В. – младший научный сотрудник лаборатории иммунологии.</p><p>344002, Ростов-на-Дону, ул. Максима Горького, 117/40</p></bio><bio xml:lang="en"><p>Anna V. Filippenko - Junior Research Associate, Laboratory of Immunology, Rostov-on-Don Anti-Plague Institute.</p><p>117/40 Maxim Gorky St Rostov-on-Don 344002</p></bio><email xlink:type="simple">filippenko_av@antiplague.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/0000-0002-4770-5994</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Труфанова</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Trufanova</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Труфанова Анастасия А. – младший научный сотрудник лаборатории иммунологии.</p><p>344002, Ростов-на-Дону, ул. Максима Горького, 117/40</p></bio><bio xml:lang="en"><p>Anastasia A. Trufanova - Junior Research Associate, Laboratory of Immunology, Rostov-on-Don Anti-Plague Institute, Rostov-on-Don, Russian Federation</p><p>117/40 Maxim Gorky St Rostov-on-Don 344002</p></bio><email xlink:type="simple">trufanova_aa@antiplague.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/0000-0001-5208-7724</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Омельченко</surname><given-names>Н. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Omelchenko</surname><given-names>N. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Омельченко Наталья Д. – кандидат медицинских наук, старший научный сотрудник лаборатории иммунологии.</p><p>344002, Ростов-на-Дону, ул. Максима Горького, 117/40</p></bio><bio xml:lang="en"><p>Natalia D. Omelchenko - PhD (Medicine), Senior Research Associate, Laboratory of Immunology, Rostov-on-Don Anti-Plague Institute.</p><p>117/40 Maxim Gorky St Rostov-on-Don 344002</p></bio><email xlink:type="simple">natalya.omelchenk0@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/0000-0002-4059-2878</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чемисова</surname><given-names>О. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Chemisova</surname><given-names>O. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чемисова Ольга С. – и.о заведующей лабораторией «Коллекция патогенных микроорганизмов».</p><p>344002, Ростов-на-Дону, ул. Максима Горького, 117/40</p></bio><bio xml:lang="en"><p>Olga S. Chemisova - Acting Head, Laboratory of the Pathogenic Microorganisms Сollection, Rostov-on-Don Anti-Plague Institute.</p><p>117/40 Maxim Gorky St Rostov-on-Don 344002</p></bio><email xlink:type="simple">chemisova_os@antiplague.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/0000-0003-0550-2221</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Носков</surname><given-names>А. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Noskov</surname><given-names>A. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Носков Алексей К. – директор Ростовского-на-Дону ПЧИ Роспотребнадзора.</p><p>344002, Ростов-на-Дону, ул. Максима Горького, 117/40</p></bio><bio xml:lang="en"><p>Aleksej K. Noskov - Director, Rostov-on-Don Anti-Plague Institute, Rostov-on-Don, Russian Federation</p><p>117/40 Maxim Gorky St Rostov-on-Don 344002</p></bio><email xlink:type="simple">plague@aaanet.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Ростовский-на-Дону противочумный институт Роспотребнадзора</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Rostov-on-Don Anti-Plague Institute</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>14</day><month>11</month><year>2022</year></pub-date><volume>25</volume><issue>1</issue><fpage>181</fpage><lpage>192</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Иванова И.А., Филиппенко А.В., Труфанова А.А., Омельченко Н.Д., Чемисова О.С., Носков А.К., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Иванова И.А., Филиппенко А.В., Труфанова А.А., Омельченко Н.Д., Чемисова О.С., Носков А.К.</copyright-holder><copyright-holder xml:lang="en">Ivanova I.A., Filippenko A.V., Trufanova A.A., Omelchenko N.D., Chemisova O.S., Noskov A.K.</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.mimmun.ru/mimmun/article/view/2585">https://www.mimmun.ru/mimmun/article/view/2585</self-uri><abstract><p>Изучение гуморального иммунного ответа у лиц, перенесших COVID-19 и вакцинированных противоковидными вакцинами, позволяет оценить формирование «гибридного» иммунитета, что способствует пониманию механизмов его формирования от эффекторной фазы до фазы иммунологической памяти. Мы оценили относительное и абсолютное содержание популяций и субпопуляций В-лимфоцитов, формирование гуморального иммунитета у перенесших COVID-19 разной степени тяжести и впоследствии вакцинированных «КовиВак» и «Спутник V».</p><p>В эксперименте принимали участие волонтеры (возраст 47,3±14,5 года), переболевшие COVID-19 бессимптомно (n = 32), в средней степени тяжести (n = 21) и в тяжелой форме (n = 12), которые через 6-9 месяцев после выздоровления были привиты «КовиВак» и «Спутник V». Группы вакцинированных состояли из болевших: тяжело, привитых «КовиВак» (n = 6) и «Спутник V» (n = 6); в средней степени тяжести, привитых «КовиВак» (n = 10) и «Спутник V» (n = 11); бессимптомно, привитых «КовиВак» (n = 10) и «Спутник V» (n = 22).</p><p>У волонтеров определяли относительное и абсолютное количество В-лимфоцитов (CD45+CD19+), В1-лимфоцитов (CD45+CD5+CD19-CD27-), В2-лимфоцитов (CD45+CD19+CD5-CD27-), общей популяции В-клеток памяти (CD45+CD19+CD5-CD27+), непереключенных (CD45+CD19+IgD+CD27+) и переключенных (CD45+CD19+IgD-CD27+) В-клеток памяти, зрелых наивных В-лимфоцитов (CD45+CD19+CD27-IgD+), плазмобластов (CD45+CD19+ CD38+++IgD-CD27+), а также наличие иммуноглобулинов класса G к S(RBD)-белку SARS-CoV-2.</p><p>Выявлено, что у перенесших COVID-19 разной степени тяжести гуморальный иммунитет сохраняется до девяти месяцев. Наибольшее количество волонтеров, имеющих антитела к S-белку SARS-CoV-2, было зарегистрировано в группе тяжелопереболевших, а через месяц после вакцинации «Спутник V» и до конца эксперимента все обследованные этой группы стали серопозитивны. Через 4-5 месяцев после введения этой вакцины у всех болевших бессимптомно и в средней форме присутствовали специфические иммуноглобулины. Все волонтеры, получившие «КовиВак», имели антитела к S-белку возбудителя COVID-19 от начала и до конца исследования. Вакцинация, особенно «КовиВак», способствовала наибольшему увеличению относительного и абсолютного  количества В-лимфоцитов памяти у болевших бессимптомно. Менее выраженные изменения в содержании В-лимфоцитов у перенесших COVID-19 тяжело и в средней форме, возможно, связаны с более высоким уровнем этих клеток до введения вакцин. Обнаружена положительная корреляция между количеством В-клеток памяти и наличием иммуноглобулинов к S-белку SARS-CoV-2 у всех обследованных.</p></abstract><trans-abstract xml:lang="en"><p>The studies on humoral immune response in the individuals who have undergone COVID-19 and vaccinated with anti-COVID vaccines allows us to assess the  development  of  “hybrid”  immunity,  which contributes to understanding the mechanisms of its formation from the effector phase to the step of immunological memory. We assessed the relative and absolute contents of B cell populations and subpopulations, development of humoral immunity in the patients who suffered with COVID-19 of varying severity being thereafter vaccinated with “KoviVak” and “Sputnik V”. The study involved volunteers (age 47.3±14.5 years) who beared COVID-19 asymptomatically (n = 32), at moderate severity (n = 21), or had severe form of the disease (n = 12), then being vaccinated with “KoviVak” and “Sputnik V” 6-9 months after their recovery. The groups of vaccinated persons consisted of those who beared severe disease being vaccinated with “KoviVak” (n = 6) or “Sputnik V” (n = 6); moderate cases, vaccinated with “KoviVak” (n = 10) and “Sputnik V” (n = 11); asymptomatic cases vaccinated with “KoviVak” (n = 10) and “Sputnik V” (n = 22). We have determined relative and absolute numbers of B lymphocytes (CD45+CD19+), B1 lymphocytes (CD45+CD5+CD19-CD27-), B2 lymphocytes (CD45+CD19+CD5-CD27-), total population of memory B cells (CD45+CD19+CD5-CD27+), non-switched (CD45+CD19+IgD+CD27+), and switched (CD45+CD19+IgD-CD27+) memory  B  cells;  mature  naive   B   lymphocytes   (CD45+CD19+CD27-IgD+),   plasmoblasts   (CD45+CD19+ CD38+++IgD-CD27+),   as  well as presence of IgG to S(RBD)-SARS-CoV-2 protein.</p><p>We have found that the humoral immunity among survivors of COVID-19 of varying severity is expressed for up to nine months. The largest number of volunteers who raised antibodies to SARS-CoV-2 S-protein was registered in the group of seriously ill patients. As soon as 1 month after “Sputnik V” vaccination and until the end of the observation, all the examined subjects in this group became seropositive. 4-5 months after injection of this vaccine, specific immunoglobulins were present in all patients who had asymptomatic or average-severity infection. All volunteers who received “KoviVak” had antibodies to the COVID-19 viral S protein from the beginning to the end of the study. Vaccination, especially with “KoviVak”, contributed to the highest increase, both in relative and absolute numbers of memory B lymphocytes in asymptomatic patients. Less pronounced changes in the content of B lymphocytes in COVID-19 patients who had severe and moderate clinical course may be associated with higher levels of these cells prior to injection of the vaccines. A positive correlation was found between the number of memory B cells and presence of immunoglobulins to the S protein SARS-CoV-2 in all examined patients.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гуморальный иммунитет</kwd><kwd>SARS-CoV-2</kwd><kwd>вакцины</kwd><kwd>популяции В-лимфоцитов</kwd><kwd>В-лимфоциты памяти</kwd><kwd>иммуноглобулины</kwd></kwd-group><kwd-group xml:lang="en"><kwd>humoral immunity</kwd><kwd>SARS-CoV-2</kwd><kwd>vaccines</kwd><kwd>B lymphocytes populations</kwd><kwd>memory B lymphocytes</kwd><kwd>immunoglobulins</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">Абакушина Е.В. Иммунологические аспекты коронавирусной болезни, вызванной SARS-COV-2 // Гены и Клетки, 2020. Т. 15, № 3. С. 14-21.</mixed-citation><mixed-citation xml:lang="en">Abakushina E.V. Immunological aspects of coronavirus disease caused by SARS-COV-2. 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