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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">Russian Journal of Infection and Immunity</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Infection and Immunity</journal-title><trans-title-group xml:lang="ru"><trans-title>Инфекция и иммунитет</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2220-7619</issn><issn publication-format="electronic">2313-7398</issn><publisher><publisher-name xml:lang="en">SPb RAACI</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">17640</article-id><article-id pub-id-type="doi">10.15789/2220-7619-IMO-17640</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ 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">Immunogenetic markers of COVID-19 severity in St. Petersburg residents</article-title><trans-title-group xml:lang="ru"><trans-title>Иммуногенетические маркеры тяжести течения COVID-19 у жителей Санкт-Петербурга</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kuzmich</surname><given-names>Elena V.</given-names></name><name xml:lang="ru"><surname>Кузьмич</surname><given-names>Елена Витальевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD (Biology), Leading Researcher, Research Laboratory of Immunology</p></bio><bio xml:lang="ru"><p>к.б.н., ведущий научный сотрудник НИЛ иммунологии</p></bio><email>yelenakuzmich@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Pavlova</surname><given-names>I. E.</given-names></name><name xml:lang="ru"><surname>Павлова</surname><given-names>И. Е.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>DSc (Medicine), Head Researcher, Research Laboratory of Immunology</p></bio><bio xml:lang="ru"><p>д.м.н., главный научный сотрудник НИЛ иммунологии</p></bio><email>yelenakuzmich@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Glazanova</surname><given-names>Tatyana Valentinovna</given-names></name><name xml:lang="ru"><surname>Глазанова</surname><given-names>Татьяна Валентиновна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>DSc (Medicine), Head Researcher, Research Laboratory of Immunology</p></bio><bio xml:lang="ru"><p>д.м.н., главный научный сотрудник НИЛ иммунологии</p></bio><email>yelenakuzmich@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shilova</surname><given-names>E. R.</given-names></name><name xml:lang="ru"><surname>Шилова</surname><given-names>Е. Р.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD (Medicine), Leading Researcher, Research Laboratory of Immunology</p></bio><bio xml:lang="ru"><p>к.м.н., ведущий научный сотрудник НИЛ иммунологии</p></bio><email>yelenakuzmich@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Bubnova</surname><given-names>L. N.</given-names></name><name xml:lang="ru"><surname>Бубнова</surname><given-names>Л. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>DSc (Medicine), Professor, Honored Scientist of the Russian Federation, Head of the Clinic's Centre for Immunological Tissue Typing, Professor of the Department of Immunology</p></bio><bio xml:lang="ru"><p>д.м.н., профессор, заслуженный деятель науки РФ, руководитель Центра иммунологического типирования тканей, профессор кафедры иммунологии</p></bio><email>yelenakuzmich@gmail.com</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Russian Research Institute of Haematology and Transfusiology of the Federal Medical and Bilogical Agency</institution></aff><aff><institution xml:lang="ru">ФГБУ Российский НИИ гематологии и трансфузиологии ФМБА России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Pavlov First St. Petersburg State Medical University</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО Первый Санкт-Петербургский государственный медицинский университет имени академика И.П. Павлова Министерства здравоохранения РФ</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2024-08-15" publication-format="electronic"><day>15</day><month>08</month><year>2024</year></pub-date><pub-date date-type="pub" iso-8601-date="2024-12-21" publication-format="electronic"><day>21</day><month>12</month><year>2024</year></pub-date><volume>14</volume><issue>5</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>891</fpage><lpage>899</lpage><history><date date-type="received" iso-8601-date="2024-04-16"><day>16</day><month>04</month><year>2024</year></date><date date-type="accepted" iso-8601-date="2024-08-13"><day>13</day><month>08</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Kuzmich E.V., Pavlova I.E., Glazanova T.V., Shilova E.R., Bubnova L.N.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Кузьмич Е.В., Павлова И.Е., Глазанова Т.В., Шилова Е.Р., Бубнова Л.Н.</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Kuzmich E.V., Pavlova I.E., Glazanova T.V., Shilova E.R., Bubnova L.N.</copyright-holder><copyright-holder xml:lang="ru">Кузьмич Е.В., Павлова И.Е., Глазанова Т.В., Шилова Е.Р., Бубнова Л.Н.</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://iimmun.ru/iimm/article/view/17640">https://iimmun.ru/iimm/article/view/17640</self-uri><abstract xml:lang="en"><p><italic>Background.</italic> The role for the HLA complex in SARS-CoV-2 immunosurveillance, resistance to virus infection and type of the individual immune response is accounted for by the extraordinary variability of HLA-genotypes as well as involvement of HLA-molecules in the mechanisms behind both cellular and humoral immunity. The aim of our study was to identify HLA-genetic factors underling severe COVID-19 course in St. Petersburg residents. <italic>Materials and methods.</italic> The study included 78 St. Petersburg residents aged 20 to 84 years (median — 55 years) recovered after COVID-19 in 2020–2022. The distribution of the examined persons based on COVID-19 severity was as follows: mild — 41, moderate — 32, severe — 5 persons. For further analysis, subjects with moderate-to-severe disease were included into a single group (37 persons). The control group consisted of 1.563 St. Petersburg residents who were potential hematopoietic stem cell donors, aged 18 to 60 years (median — 32 years). The low resolution HLA typing was performed by polymerase chain reaction using sequence-specific primers and sequence-specific oligonucleotide probes. HLA typing in control group was performed prior to SARS-CoV-2 pandemic. <italic>Results.</italic> A lower frequency of HLA-A*01 group was found in individuals with mild vs moderate/severe COVID-19 (0.0366 vs 0.1351; p = 0.04) and control group (0.0366 vs 0.1193; p = 0.02). A higher frequency of HLA-A*11 group was found in moderate/severe course compared to mild COVID-19 (0.1081 vs 0.0244; p = 0.048). Compared to control group, HLA-A*11 frequency in moderate/severe course (0.1081 vs 0.0582; p = 0.08) tended to increase. According to multivariate analysis, the risk of severe COVID-19 course in St. Petersburg residents was significantly associated with detected HLA-A*11 allele group (OR 7.38; CI 1.15–47.3; p = 0.032) and age (OR 1.05; CI 1.01–1.09; p = 0.008) along with an effect from HLA-A*01 tending to contribute to a risk of developing severe COVID-19 (OR 3.88; CI 0.88–17.09; p = 0.068). <italic>Conclusion.</italic> HLA markers for severe COVID-19 in St. Petersburg residents was identified providing deeper insight into a role played by HLA system in COVID-19 outcomes.</p></abstract><trans-abstract xml:lang="ru"><p><italic>Введение.</italic> Роль HLA-комплекса в иммунном контроле над SARS-CoV-2, невосприимчивости к инфицированию вирусом, характере индивидуального иммунного ответа определяется необычайной вариабельностью HLA-генотипов и вовлеченностью HLA-молекул в механизмы как клеточного, так и гуморального иммунитета. Целью нашей работы являлось выявление HLA-генетических факторов, обусловливающих тяжелое течение COVID-19 у жителей Санкт-Петербурга. <italic>Материалы и методы.</italic> В исследование включены 78 петербуржцев в возрасте от 20 до 84 лет (медиана — 55 лет), перенесших COVID-19 в период 2020–2022 гг. Распределение обследованных лиц по степени тяжести течения COVID-19: легкая — 41, средняя — 32, тяжелая — 5 человек. Для дальнейшего анализа лица со среднетяжелым и тяжелым течением заболевания были объединены в одну группу (37 человек). Контрольную группу составили 1563 петербуржца, являющихся потенциальными донорами гемопоэтических стволовых клеток, в возрасте от 18 до 60 лет (медиана — 32 года). HLA-типирование базового уровня разрешения выполнено методом полимеразной цепной реакции с использованием сиквенс-специфичных праймеров и сиквенс-специфичных олигонуклеотидных проб. Иммуногенетическое обследование представителей контрольной группы выполнено до начала пандемии SARS-CoV-2. <italic>Результаты.</italic> У лиц, перенесших COVID-19 в легкой форме, установлено снижение частоты HLA-A*01 по сравнению с группой со среднетяжелым/тяжелым течением заболевания (0,0366 против 0,1351; р = 0,04) и контрольной группой (0,0366 против 0,1193; р = 0,02). Выявлена более высокая частота HLA-A*11 у лиц со среднетяжелым/тяжелым течением по сравнению с индивидуумами с легким течением COVID-19 (0,1081 против 0,0244; р = 0,048). Отмечалась тенденция к более высокой частоте HLA-A*11 у лиц со среднетяжелым/тяжелым течением по сравнению с группой контроля (0,1081 против 0,0582; р = 0,08). Согласно данным многофакторного анализа, риск тяжелого течения COVID-19 у жителей Санкт-Петербурга ассоциирован с наличием группы аллелей HLA-A*11 (ОШ 7,38; ДИ 1,15–47,3; р = 0,032) и возрастом (ОШ 1,05; ДИ 1,01–1,09; р = 0,008). Также имела место тенденция влияния группы аллелей HLA-A*01 на риск развития тяжелых форм COVID-19 (ОШ 3,88; ДИ 0,88–17,09; р = 0,068). <italic>Заключение.</italic> Установлены HLA-маркеры тяжелого течения COVID-19, характерные для жителей Санкт-Петербурга. Учитывая чрезвычайный аллельный полиморфизм HLA-генов, исследования, включающие представителей различных популяций, необходимы для более глубокого понимания роли HLA системы в исходах COVID-19 и разработки эффективных вакцин.</p></trans-abstract><kwd-group xml:lang="en"><kwd>immunogenetic markers</kwd><kwd>disease severity</kwd><kwd>COVID-19</kwd><kwd>HLA-alleles</kwd><kwd>HLA-genes</kwd><kwd>SARS-CoV-2</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>иммуногенетические маркеры</kwd><kwd>тяжесть заболевания</kwd><kwd>COVID-19</kwd><kwd>HLA-аллели</kwd><kwd>HLA-гены</kwd><kwd>SARS-CoV-2</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Бубнова Л.Н., Павлова И.Е., Беркос А.С., Терентьева М.А., Глазанова Т.В., Ерохина Л.В., Беляева Е.В., Чечеткин А.В., Башкетова Н.С., Чхинджерия И.Г., Кожемякина М.А., Азаров Д.В., Кузнецова Р.Н., Тотолян А.А. 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