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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-2813</article-id><article-id custom-type="elpub" pub-id-type="custom">mimmun-2813</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>КРАТКИЕ СООБЩЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SHORT COMMUNICATIONS</subject></subj-group></article-categories><title-group><article-title>Особенности частоты встречаемости полиморфизма гена T-330G IL2 у пациентов с COVID-19</article-title><trans-title-group xml:lang="en"><trans-title>Features of the frequency of occurrence of T-330G IL2 gene polymorphism in patients with 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/0000-0003-4590-3580</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Агеева</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Ageeva</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Агеева Е.С. – д.м.н., заведующая кафедрой биологии медицинской, Медицинская академия имени С.И. Георгиевского </p><p>г. Симферополь</p></bio><bio xml:lang="en"><p>Ageeva E.S., PhD, MD (Medicine), Head, Department of Medical Biology, S. Georgievsky Medical Academy</p><p>Simferopol</p></bio><email xlink:type="simple">ageevaeliz@rambler.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Аблаева</surname><given-names>Р. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Ablaeva</surname><given-names>R. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Аблаева Р.Н. – ассистент кафедры медицинской биологии </p><p>г. Симферополь</p></bio><bio xml:lang="en"><p>Ablaeva R.N., Assistant Professor, Department of Medical Biology </p><p>Simferopol</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Яцков</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Yatskov</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Яцков И.А. – к.м.н., ассистент кафедры внутренней медицины № 2 </p><p>г. Симферополь</p></bio><bio xml:lang="en"><p>Yatskov I.A., PhD (Medicine), Assistant Professor, Department of Internal Medicine No. 2 </p><p>Simferopol</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алёшина</surname><given-names>О. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Aleshina</surname><given-names>O. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алёшина О.К. – к.м.н., доцент кафедры педиатрии, физиотерапии и курортологии </p><p>г. Симферополь</p></bio><bio xml:lang="en"><p>Aleshina O.K., PhD (Medicine), Associate Professor, Department of Pediatrics, Physiotherapy and Balneology </p><p>Simferopol</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рымаренко</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Rymarenko</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Рымаренко Н.В. – д.м.н., профессор кафедры педиатрии с курсом детских инфекционных болезней </p><p>г. Симферополь</p></bio><bio xml:lang="en"><p>Rymarenko N.V., PhD, MD (Medicine), Professor, Department of Pediatrics with a Course in Children’s Infectious Diseases </p><p>Simferopol</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Белоглазов</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Beloglazov</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Белоглазов В.А. – д.м.н., профессор, заведующий кафедрой внутренней медицины № 2 </p><p>г. Симферополь</p></bio><bio xml:lang="en"><p>Beloglazov V.A., PhD, MD (Medicine), Professor, Head, Department of Internal Medicine No. 2 </p><p>Simferopol</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дядюра</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Dyadyura</surname><given-names>E. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дядюра Е.Н. – врач-инфекционист 1-й категории </p><p>г. Симферополь</p></bio><bio xml:lang="en"><p>Dyadyura E.N., Infectious Diseases Doctor of the 1st Category </p><p>Simferopol</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГАОУ ВО «Крымский федеральный университет имени В.И. Вернадского»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>V. Vernadsky Crimean Federal University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ГБУЗ РК «Республиканская детская инфекционная клиническая больница»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Republican Children’s Infectious Clinical Hospital</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>01</day><month>06</month><year>2023</year></pub-date><volume>25</volume><issue>4</issue><fpage>779</fpage><lpage>784</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Агеева Е.С., Аблаева Р.Н., Яцков И.А., Алёшина О.К., Рымаренко Н.В., Белоглазов В.А., Дядюра Е.Н., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Агеева Е.С., Аблаева Р.Н., Яцков И.А., Алёшина О.К., Рымаренко Н.В., Белоглазов В.А., Дядюра Е.Н.</copyright-holder><copyright-holder xml:lang="en">Ageeva E.S., Ablaeva R.N., Yatskov I.A., Aleshina O.K., Rymarenko N.V., Beloglazov V.A., Dyadyura E.N.</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/2813">https://www.mimmun.ru/mimmun/article/view/2813</self-uri><abstract><p>Инфекция SARS-CoV-2 является этиопатогенетическим фактором новой коронавирусной инфекции. Восприимчивость к вирусу и, соответственно, заболеваемость отличается у детей и взрослых. С одной стороны, это отражает возрастные особенности иммунного ответа. С другой стороны, реализуется через выработку ряда цитокинов, в том числе IL-2, и отражает генетически-детерминированные особенности продукции цитокинов. Целью исследования был анализ частоты встречаемости полиморфных вариантов T-330G гена IL2 у пациентов с новой коронавирусной инфекцией. Всего было обследовано 145 пациентов, из них 31,0% детей (n = 45) и 69,0% взрослых (n = 100). Диагноз «новая коронавирусная инфекция» верифицирован методом ОТ-ПЦР подтверждающего наличие вируса SARS-CoV-2 и выявление клинических симптомов инфекции верхних дыхательных путей. Группу контроля составили 50 здоровых доноров-добровольцев. Для анализа полиморфизма Т-330G гена IL2 использовали аллель-специфическую ПЦР с электрофоретической детекцией в 3% агарозном геле («Литех», Россия). Для сравнения частот комбинаций аллелей использовали критерий χ2  и отношение шансов OR и (95% CI).</p><p>Доминирующим генотипом у пациентов с COVID-19 был гетерозиготный генотип GТ полиморфизма T-330G гена IL2. В группе детей с риском развития новой коронавирусной инфекции был ассоциирован генотип GG полиморфизма T-330G гена IL2 (31,1% у детей и 18,0% в группе контроля, р &lt; 0,05, OR = 2,047). В то время как гомозиготный генотип ТТ полиморфизма T-330G гена IL2 являлся протективным генотипом (его частота встречаемости составила у пациентов – 26,7%, в группе контроля – 54,0%, р &lt; 0,05, OR = 0,315). У взрослых с риском развития новой коронавирусной инфекции был ассоциирован гетерозиготный генотип GT полиморфизма T-330G гена IL2 (в группе пациентов – 44,0% против контроля – 28,0%, р = 0,028, OR = 2,020). Низкий риск развития заболевания был ассоциирован с гомозиготного вариантом ТТ полиморфизма T-330G гена IL2 (в группе пациентов 37,0% против контроля – 54,0%, р = 0,024, OR = 0,500).</p><p>Полиморфизм T-330G промотроной зоны гена IL2 по-разному влияет на его продукцию. От уровня IL-2 зависит направление иммунного ответа и его эффективность. Понимание индивидуальных факторов, определяющих особенности иммунного ответа может помочь в понимании механизмов развития COVID-19-ассоциированных заболеваний и подборе подходов к персонализированным методам их лечения.</p></abstract><trans-abstract xml:lang="en"><p>SARS-CoV-2 infection is the etiopathogenetic factor of the new coronavirus infection. Susceptibility to the virus and, accordingly, the incidence differs in children and adults. On the one hand, this reflects the age-related features of the immune response. On the other hand, it is realized through the production of a number of cytokines, including IL-2, and reflects the genetically determined features of cytokine production. The aim of the study was to analyze the frequency of occurrence of T-330G polymorphic variants of the IL2 gene in patients with a new coronavirus infection. A total of 145 patients were examined, including 31.0% of children (n = 45) and 69.0% of adults (n = 100). The diagnosis of a new coronavirus infection was verified by RT-PCR confirming the presence of the SARS-CoV-2 virus and identifying clinical symptoms of an upper respiratory tract infection. The control group consisted of 50 healthy volunteer donors. Allele-specific PCR with electrophoretic detection in 3% agarose gel (Litech, Russia) was used to analyze the T-330G polymorphism of the IL2 gene. To compare the frequencies of allele combinations, the χ2 test and the odds ratio OR and (95% CI) were used.</p><p>The dominant genotype in patients with COVID-19 was the heterozygous GT genotype of the T-330G polymorphism of the IL2 gene. In the group of children at risk of developing a new coronavirus infection, the GG genotype of the T-330G polymorphism of the IL2 gene was associated (31.1% in children and 18.0% in the control group, p &lt; 0.05, OR = 2.047). While the homozygous TT genotype of the T-330G polymorphism of the IL2 gene was a protective genotype (its occurrence rate was 26.7% in patients, 54.0% in the control group, p &lt; 0.05, OR = 0.315). In adults, the heterozygous GT genotype of the T-330G polymorphism of the IL2 gene was associated with the risk of developing a new coronavirus infection (in the group of patients – 44.0% versus control – 28.0%, p = 0.028, OR = 2.020). A low risk of developing the disease was associated with the homozygous TT variant of the T-330G polymorphism of the IL2 gene (in the group of patients 37.0% versus control – 54.0%, p = 0.024, OR = 0.500).</p><p>The T-330G polymorphism of the promoter zone of the IL2 gene differently affects its production. The direction of the immune response and its effectiveness depend on the level of IL-2. Understanding the individual factors that determine the features of the immune response can help in understanding the mechanisms of development of COVID-19-associated diseases and the selection of approaches to personalized methods of their treatment.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>полиморфизм генов</kwd><kwd>SNP</kwd><kwd>T-330G IL2</kwd><kwd>COVID-19</kwd><kwd>дети</kwd><kwd>SARS-CoV-2</kwd></kwd-group><kwd-group xml:lang="en"><kwd>polymorphism of gene</kwd><kwd>SNP</kwd><kwd>T-330G IL2</kwd><kwd>COVID-19</kwd><kwd>children</kwd><kwd>SARS-CoV-2</kwd></kwd-group><funding-group><funding-statement xml:lang="en">The study was financially supported by the Ministry of Science and Higher Education of the Russian Federation, program “Priority-2030” No. 075-15-2021-1323.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Emelyanov A., Emelyanova A., Zaytseva E., Vitkovsky Y. 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