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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">actabiomedica</journal-id><journal-title-group><journal-title xml:lang="ru">Acta Biomedica Scientifica</journal-title><trans-title-group xml:lang="en"><trans-title>Acta Biomedica Scientifica</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2541-9420</issn><issn pub-type="epub">2587-9596</issn><publisher><publisher-name>Scientific Centre for Family Health and Human Reproduction Problems</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29413/ABS.2023-8.4.11</article-id><article-id custom-type="elpub" pub-id-type="custom">actabiomedica-4341</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>ИНФЕКЦИОННЫЕ БОЛЕЗНИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>INFECTIOUS DISEASES</subject></subj-group></article-categories><title-group><article-title>Особенности показателей клеточного иммунитета периферической крови у пациентов с  поражением лёгких до 30  % при COVID-19</article-title><trans-title-group xml:lang="en"><trans-title>Features of peripheral blood cellular immunity parameters in patients with lung damage up  to  30  % in COVID-19</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3063-1538</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бородулина</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Borodulina</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бородулина Елена Александровна – доктор медицинских наук, профессор, заведующая кафедрой фтизиатрии и пульмонологии </p><p>443099, г. Самара, ул. Чапаевская, 89</p></bio><bio xml:lang="en"><p>Elena A. Borodulina – Dr. Sc. (Med.), Professor, Head of the Department of Phthisiology and Pulmonology </p><p>Chapaevskaya str. 89, Samara 443099</p></bio><email xlink:type="simple">borodulinbe@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/0000-0001-7024-7031</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Васнева</surname><given-names>Ж. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Vasneva</surname><given-names>Zh. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Васнева Жанна Петровна – кандидат биологических наук, врач-лаборант </p><p>443099, г. Самара, ул. Мяги, 7А</p></bio><bio xml:lang="en"><p>Zhanna P. Vasneva – Cand. Sc. (Biol.), Laboratory Assistant </p><p>Myagi str. 7A, Samara 443093</p></bio><email xlink:type="simple">vasneva@list.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0039-6829</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Вдоушкина</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Vdoushkina</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Вдоушкина Елизавета Сергеевна – кандидат медицинских наук, доцент кафедры фтизиатрии и пульмонологии </p><p>443099, г. Самара, ул. Чапаевская, 89</p></bio><bio xml:lang="en"><p>Elizaveta S. Vdoushkina – Cand. Sc. (Med.), Associate Professor at the Department of Phthisiology and Pulmonology </p><p>Chapaevskaya str. 89, Samara 443099</p></bio><email xlink:type="simple">vdoushkina@rambler.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/0000-0002-8847-9831</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бородулин</surname><given-names>Б. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Borodulin</surname><given-names>B. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бородулин Борис Евгеньевич – доктор медицинских наук, профессор кафедры фтизиатрии и пульмонологии </p><p>443099, г. Самара, ул. Чапаевская, 89</p></bio><bio xml:lang="en"><p>Boris E. Borodulin – Dr. Sc. (Med.), Professor at the Department of Phthisiology and Pulmonology </p><p>Chapaevskaya str. 89, Samara 443099</p></bio><email xlink:type="simple">borodulinbe@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/0000-0002-2546-1837</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Поваляева</surname><given-names>Л. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Povalyaeva</surname><given-names>L. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Поваляева Людмила Викторовна – кандидат медицинских наук, доцент кафедры фтизиатрии и пульмонологии </p><p>443099, г. Самара, ул. Чапаевская, 89</p></bio><bio xml:lang="en"><p>Ljudmila V. Povalyaeva – Cand. Sc. (Med.), Associate Professor at the Department of Phthisiology and Pulmonology </p><p>Chapaevskaya str. 89, Samara 443099</p></bio><email xlink:type="simple">povalyaevalv8@rambler.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО «Самарский государственный медицинский университет» Минздрава России</institution></aff><aff xml:lang="en"><institution>Samara State Medical University</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>АО «Самарский диагностический центр»</institution></aff><aff xml:lang="en"><institution>Samara Diagnostic Center</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>03</day><month>10</month><year>2023</year></pub-date><volume>8</volume><issue>4</issue><fpage>101</fpage><lpage>108</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Бородулина Е.А., Васнева Ж.П., Вдоушкина Е.С., Бородулин Б.Е., Поваляева Л.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Бородулина Е.А., Васнева Ж.П., Вдоушкина Е.С., Бородулин Б.Е., Поваляева Л.В.</copyright-holder><copyright-holder xml:lang="en">Borodulina E.A., Vasneva Z.P., Vdoushkina E.S., Borodulin B.E., Povalyaeva L.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://www.actabiomedica.ru/jour/article/view/4341">https://www.actabiomedica.ru/jour/article/view/4341</self-uri><abstract><sec><title>Обоснование</title><p>Обоснование. Успех противодействия организма человека инфекциям в значительной мере зависит от иммунной системы. Механизмы реагирования клеточного иммунитета на вирус SARS-CoV-2 ещё точно не определены и изучаются. </p></sec><sec><title>Цель работы</title><p>Цель работы. Исследование особенностей показателей клеточного звена иммунитета у пациентов с поражением лёгких до 30 % при COVID-19. </p></sec><sec><title>Материал и методы</title><p>Материал и методы. Обследовано 73 человека в период пандемии 2020– 2021 гг. Группу изучения составил 31 пациент с поражением лёгких до 30 % при COVID-19, группу сравнения – 42 человека, не инфицированных SARS-CoV-2. Общий клинический анализ крови проводили с использованием гематологического анализатора Medonic M20 (Boule Medical, Швеция), уровень субпопуляций лимфоцитов определяли с использованием цитометра FACS Calibur (BD, США) и меченных ФИТЦ и фикоэритрином моноклональных антител (Сорбент, Россия). Различия считались статистически значимыми при р &lt; 0,05.</p></sec><sec><title>Результаты</title><p>Результаты. У пациентов с COVID-19 при поражении лёгких по данным компьютерной томографии (КТ) ≤ 30 % до начала лечения отмечается перестройка в соотношении субпопуляций лимфоцитов в 67,7 % случаев. Лимфопения (&lt; 1,1 × 109 кл./л) выявлена у 34,4 % пациентов: снижение абсолютного содержания CD3+-лимфоцитов – на 30,8 %, CD3+CD4+ – на 35 %, CD3+CD8+ – на 6,7 % (р &lt; 0,05), CD16+CD56+ натуральных киллеров (НК) – на 29,4 % (р = 0,009). Уровень CD95+-лимфоцитов при COVID-19 в 3,2 раза выше, чем у здоровых лиц. Повышенные уровни HLA-DR+- (&gt; 20 %) и CD3+ HLA-DR+- лимфоцитов (&gt; 6 %) регистрируются у 60 % и 86,7 % пациентов соответственно. Повышенный уровень CD19+ В-лимфоцитов (&gt; 17 %) при COVID-19 бывает в 2,6 раза чаще, чем у здоровых лиц. Выявлены корреляционные зависимости содержания НК-клеток с широким спектром субпопуляций Т-лимфоцитов. </p></sec><sec><title>Заключение</title><p>Заключение. Показатели клеточного иммунитета при COVID-19 имеют ряд характерных особенностей, которые могут служить предиктором прогрессирования тяжести заболевания.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Background</title><p>Background. The stability of human organism for different kind of infection, including SARS-CoV-2 is significantly defined by the immune system. The mechanisms of the cellular immunity to the SARS-CoV-2 are not exactly defined and are under study. </p></sec><sec><title>The aim</title><p>The aim. To study the features of cell immunity parameters in patients with lung damage up to 30 % in COVID-19. </p></sec><sec><title>Material and methods</title><p>Material and methods. 73 people were examined during the 2020–2021 pandemic. The study group consisted of 31 patients with lung damage up to 30 % with COVID-19, the comparison group consisted of 42 people not infected with SARS-CoV-2. A complete clinical blood count was carried out using a Medonic M20 hematological analyzer (Boule Medical, Sweden), the level of lymphocyte subpopulations was determined using a FACS Calibur cytometer (BD, USA) and FITC- and phycoerythrin-labeled monoclonal antibodies (Sorbent, Russia). Differences were considered statistically significant at p &lt; 0.05. </p></sec><sec><title>Results</title><p>Results. Patients with COVID-19 with lung damage according to computed tomography (CT) ≤ 30 % before the treatment had a restructuring in the ratio of lymphocyte subpopulations in 67.7 % of cases. Lymphopenia (&lt; 1.1 × 109 cells/l) was detected in 34.4 % of patients: a decrease in the absolute count of CD3+ lymphocytes by 30.8 %, CD3+CD4+ – by 35 %, CD3+CD8+ – by 6.7 % (p &lt; 0.05), CD16+CD56+ natural killer (NK) cells – by 29.4 % (p = 0.009). The level of CD95+ lymphocytes in COVID-19 is 3.2 times higher than in healthy individuals. Elevated levels of HLA-DR+- (&gt; 20 %) and CD3+ HLADR+ lymphocytes (&gt; 6 %) are recorded in 60 % and 86.7 % of patients, respectively. Elevated levels of CD19+ B lymphocytes (&gt; 17 %) in COVID-19 are 2.6 times more common than in healthy individuals. Correlation dependences of the count of NK cells with a wide range of T lymphocyte subpopulations were revealed. </p></sec><sec><title>Conclusion</title><p>Conclusion. Cellular immunity indicators in COVID-19 have a number of features that can serve as predictors of the progression of the severity of the disease.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>COVID-19</kwd><kwd>новая коронавирусная инфекция</kwd><kwd>иммунный статус</kwd><kwd>клеточный иммунитет</kwd><kwd>лимфоциты</kwd><kwd>SARS-CoV-2</kwd></kwd-group><kwd-group xml:lang="en"><kwd>COVID-19</kwd><kwd>new coronavirus infection</kwd><kwd>immune state</kwd><kwd>cellular immunity</kwd><kwd>lymphocytes</kwd><kwd>SARS-CoV-2</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">Ruan Q, Yang K, Wang W, Jiang L, Song J. Clinical predictors of mortality due to COVID-19 based on an analysis of data of 150 patients from Wuhan. 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