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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">Journal of microbiology, epidemiology and immunobiology</journal-id><journal-title-group><journal-title xml:lang="en">Journal of microbiology, epidemiology and immunobiology</journal-title><trans-title-group xml:lang="ru"><trans-title>Журнал микробиологии, эпидемиологии и иммунобиологии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0372-9311</issn><issn publication-format="electronic">2686-7613</issn><publisher><publisher-name xml:lang="en">Central Research Institute for Epidemiology</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">13814</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>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">FEATURES OF PROLIFERATIVE RESPONSE OF T-CELLS ON HEPATITIS C VIRUS ANTIGENS IN HEALTHY INDIVIDUALS CONTACTING WITH THIS VIRUS</article-title><trans-title-group xml:lang="ru"><trans-title>ОСОБЕННОСТИ ПРОЛИФЕРАТИВНОГО ОТВЕТА Т-КЛЕТОК НА АНТИГЕНЫ ВИРУСА ГЕПАТИТА С У ЗДОРОВЫХ ЛИЦ, КОНТАКТИРУЮЩИХ С ЭТИМ ВИРУСОМ</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Fedoseeva</surname><given-names>N. V</given-names></name><name xml:lang="ru"><surname>Федосеева</surname><given-names>Н. В</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shmeleva</surname><given-names>E. V</given-names></name><name xml:lang="ru"><surname>Шмелева</surname><given-names>Е. В</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kapitonova</surname><given-names>O. S</given-names></name><name xml:lang="ru"><surname>Капитонова</surname><given-names>О. С</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Balmasova</surname><given-names>I. P</given-names></name><name xml:lang="ru"><surname>Балмасова</surname><given-names>И. П</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gultyaev</surname><given-names>M. M</given-names></name><name xml:lang="ru"><surname>Гультяев</surname><given-names>М. М</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Znoiko</surname><given-names>O. O</given-names></name><name xml:lang="ru"><surname>Знойко</surname><given-names>О. О</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Yuschyk</surname><given-names>N. D</given-names></name><name xml:lang="ru"><surname>Ющук</surname><given-names>Н. Д</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Moscow State Medical-Stomatological University, Russia</institution></aff><aff><institution xml:lang="ru">Московский государственный медико-стоматологический университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2013-06-15" publication-format="electronic"><day>15</day><month>06</month><year>2013</year></pub-date><volume>90</volume><issue>3</issue><issue-title xml:lang="en">NO3 (2013)</issue-title><issue-title xml:lang="ru">№3 (2013)</issue-title><fpage>38</fpage><lpage>44</lpage><history><date date-type="received" iso-8601-date="2023-06-09"><day>09</day><month>06</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2013, Fedoseeva N.V., Shmeleva E.V., Kapitonova O.S., Balmasova I.P., Gultyaev M.M., Znoiko O.O., Yuschyk N.D.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2013, Федосеева Н.В., Шмелева Е.В., Капитонова О.С., Балмасова И.П., Гультяев М.М., Знойко О.О., Ющук Н.Д.</copyright-statement><copyright-year>2013</copyright-year><copyright-holder xml:lang="en">Fedoseeva N.V., Shmeleva E.V., Kapitonova O.S., Balmasova I.P., Gultyaev M.M., Znoiko O.O., Yuschyk N.D.</copyright-holder><copyright-holder xml:lang="ru">Федосеева Н.В., Шмелева Е.В., Капитонова О.С., Балмасова И.П., Гультяев М.М., Знойко О.О., Ющук Н.Д.</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://microbiol.crie.ru/jour/article/view/13814">https://microbiol.crie.ru/jour/article/view/13814</self-uri><abstract xml:lang="en"><p>Aim. Evaluation of CD3+ and CD3-/CD56+ proliferative response on hepatitis C virus antigens in healthy medical workers. Materials and methods. The study included 15 medical workers with length of service of 2 and more years without common risk factors (blood and blood products transfusion, abdominal operations, invasive procedures, use of intravenous drugs). Control group consisted of 9 healthy individuals without risk factors. Peripheral mononuclears were isolated from blood and then incubated 72 hours in the presence of mitogen/PHA, Core+NS4 1b genotype HCV, NS4 HCV 2a+3a genotypes or medium. Proliferative activity was registered by the presence of cell division marker ki67 by using FACS. Results. The initial immunogram of medical workers differed from the control group by a significantly lower quantity of CD3+ lymphocytes, in particular CD3+/CD8 + population. Incubation with PHA resulted in a decrease of quantity ofCD3+/ ki67+, CD4+/ki67+ and CD3-/CD56+/ki67+ in the medical workers group. Cultivation with HCV antigens resulted in a significant decrease of Treg (CD3+/CD25high/FoxP3+) and activated T-lymphocytes population in the case of stimulation by Core and NS4 1b genotype antigens. Analysis of cell response on virus antigens based on proliferative activity index detected significant differences only for CD8+/ki67+. Stimulation by Core and NS4 1b genotype antigens resulted in an increase of quantity of these cells whereas in the case of NS4 2a+3a genotypes their decrease was observed. Conclusion. The described changes may reflect exhaustion of cell reactivity due to extra antigen load in the group of medical workers, while differentiated immunologic shifts on hepatitis C viruses of various genotypes are noted.</p></abstract><trans-abstract xml:lang="ru"><p>Цель. Оценка CD3+ и CD3-/CD56+ пролиферативного ответа на антигены вируса гепатита С у здоровых медработников. Материалы и методы. Исследование включало 15 медицинских работников со стажем работы 2 и более лет без распространенных факторов риска (переливание крови и продуктов крови, полостных операций, инвазивных процедур, употребления внутривенных наркотиков). Контрольная группа состояла из 9 здоровых добровольцев без факторов риска. Из крови изолировали периферические мононуклеары, которые затем инкубировали 72 часа в присутствии митогена/ФГА, Core+NS4 1b генотипа ВГС, NS4 ВГС 2a+3a генотипов или среды. Пролиферативную активность регистрировали по наличию маркера клеточного деления ki67 с использованием FACS. Результаты. Исходная иммунограмма медработников отличалась от контрольной группы достоверно более низким количеством CD3+ лимфоцитов, в частности популяции CD3+/CD8+. Инкубация с ФГА приводила к уменьшению числа CD3+/ki67+, CD4+/ki67+ и CD3-/ CD56+/ki67+ в группе медработников. Культивирование с антигенами ВГС приводило к значимому уменьшению популяции Treg (CD3+/CD25high/FoxP3+) и активированных T-лимфоцитов в случае стимуляции антигенами Core и NS4 1b генотипа. Анализ клеточного ответа на антигены вируса на основе индекса пролиферативной активности выявил значимые различия только для CD8+/ki67+. Стимуляция антигенами Core и NS4 1b генотипа приводила к увеличению количества этих клеток, тогда как в случае NS4 2a+3a генотипов наблюдалось их уменьшение. Заключение. Описанные изменения могут отражать истощение клеточной реактивности из-за дополнительной антигенной нагрузки в группе медработников, при этом отмечаются дифференцированные иммунологические сдвиги на антигены вируса гепатита С различных генотипов.</p></trans-abstract><kwd-group xml:lang="en"><kwd>proliferative T-cell response</kwd><kwd>hepatitis C virus</kwd><kwd>lymphocyte subpopulations</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>пролиферативный Т-клеточный ответ</kwd><kwd>вирус гепатита С</kwd><kwd>субпопуляции лимфоцитов</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Al-Sherbiny M., Osman A., Mohamed N. et al. Exposure to hepatitis C virus induces cellular immune responses without detectable viremia or seroconversion. Am. J. Trop. Med. Hyg. 2005, 73 (1): 44-49.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Bes M., Esteban J.I., Casamitjana N. et al. 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