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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-EOT-3283</article-id><article-id custom-type="elpub" pub-id-type="custom">mimmun-3283</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>Влияние полиморфизма T330G гена IL2 на уровень некоторых лабораторных маркеров у пациентов с сахарным диабетом 1-го типа</article-title><trans-title-group xml:lang="en"><trans-title>Effect of T330G variant of IL2 gene on some biomarkers in patients with type 1 diabetes mellitus</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5486-7262</contrib-id><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 Игорь Анатольевич – к.м.н., доцент кафедры внутренней медицины №2 </p><p>295051, г. Симферополь, Республика Крым, бул. Ленина, 5/7.</p></bio><bio xml:lang="en"><p>Igor A. Yatskov - PhD, Associate Professor, Department of Internal Medicine No. 2</p><p>5/7 Lenina Blvd Simferopol, Republic of Crimea 295051 </p></bio><email xlink:type="simple">egermd@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/0000-0001-9640-754X</contrib-id><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>Д.м.н., профессор, заведующий кафедрой внутренней медицины №2 </p><p>Симферополь</p></bio><bio xml:lang="en"><p>PhD, MD (Medicine), Professor, Head, Department of Internal Medicine No. 2</p><p>Simferopol</p></bio><email xlink:type="simple">biloglazov@mail.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/0000-0003-4590-3580</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>Д.м.н., профессор, заведующая кафедрой биологии медицинской </p><p>Симферополь</p></bio><bio xml:lang="en"><p>PhD, MD (Medicine), Professor, Head, Department of Medical Biology</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"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6200-1699</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Репинская</surname><given-names>И. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Repinskaya</surname><given-names>I. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ассистент кафедры внутренней медицины №2 </p><p>Симферополь</p></bio><bio xml:lang="en"><p>Assistant of the Department of Internal Medicine No. 2 </p><p>Simferopol</p></bio><email xlink:type="simple">repinskaya.irina@mail.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/0000-0001-8757-9585</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гаффарова</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Gaffarova</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ассистент кафедры внутренней медицины №2 </p><p>Симферополь</p></bio><bio xml:lang="en"><p>Assistant of the Department of Internal Medicine No. 2 </p><p>Simferopol</p></bio><email xlink:type="simple">anife.gaffarova96@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Ордена Трудового Красного Знамени Медицинский институт имени С.И. Георгиевского ФГАОУ ВО «Крымский федеральный университет имени В.И. Вернадского»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>S. Georgievsky Medical Institute, V. Vernadsky Crimean Federal University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>20</day><month>06</month><year>2026</year></pub-date><volume>28</volume><issue>2</issue><fpage>359</fpage><lpage>366</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Яцков И.А., Белоглазов В.А., Агеева Е.С., Репинская И.Н., Гаффарова А.С., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Яцков И.А., Белоглазов В.А., Агеева Е.С., Репинская И.Н., Гаффарова А.С.</copyright-holder><copyright-holder xml:lang="en">Yatskov I.A., Beloglazov V.A., Ageeva E.S., Repinskaya I.N., Gaffarova A.S.</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/3283">https://www.mimmun.ru/mimmun/article/view/3283</self-uri><abstract><p>Сахарный диабет 1-го типа (СД1) – аутоиммунное заболевание, характеризующееся высоким риском развития сосудистых осложнений, которые являются основной причиной инвалидизации и смертности пациентов. Дисфункция иммунной системы, в частности нарушение баланса регуляторных Т-клеток (Treg), играет центральную роль в патогенезе СД1. Интерлейкин-2 (IL-2) является ключевым цитокином для поддержания функции Treg. Полиморфизм T330G (rs2069762) в промоторной области гена IL2 может влиять на уровень его продукции, однако его связь с маркерами, отражающими патологические процессы при диабете, изучена недостаточно. Целью исследования было изучить возможную ассоциацию полиморфизма T330G гена IL2 с уровнями лабораторных маркеров, отражающих активность системного воспаления, эндотелиальной дисфункции, фиброгенеза и проницаемости кишечного барьера у пациентов с СД1. В поперечном исследовании приняли участие 90 пациентов с СД1. Проведено генотипирование по полиморфизму T330G гена IL2 методом ПЦР. Методом иммуноферментного анализа в плазме крови определяли концентрации ангиотензина-2, трансформирующего фактора роста-b (TGF-b), эндотелина-1, С-реактивного белка (СРБ), маркеров кишечной проницаемости (зонулин, LBP, BPI, sCD14) и других. Статистический анализ проводился с использованием непараметрических методов. Установлено, что носители генотипа TT, ассоциированного с более низкой продукцией IL-2, имели статистически значимо более высокие уровни ангиотензина-2 по сравнению с носителями генотипа GG (медиана 192,4 пкг/мл против 88,0 пкг/мл; p = 0,021). Также у пациентов с генотипом TT наблюдались более высокие концентрации TGF-b по сравнению с гетерозиготной группой TG (медиана 2,7 нг/мл против 1,8 нг/мл; p = 0,015). Значимых ассоциаций полиморфизма T330G с уровнями СРБ, маркерами проницаемости кишечника и клиническими показателями, включая HbA1c и частоту осложнений, выявлено не было. Полиморфизм T330G гена IL2 ассоциирован с активностью ренин-ангиотензиновой системы и уровнем основного профибротического цитокина TGF-b у пациентов с СД1. Генетически детерминированное снижение продукции IL-2 (генотип TT) может способствовать гиперактивации данных систем, играющих ключевую роль в развитии сосудистых осложнений. Данный полиморфизм может рассматриваться как потенциальный генетический маркер для стратификации риска и персонализации терапии при СД1.</p></abstract><trans-abstract xml:lang="en"><p>Type 1 diabetes mellitus (T1DM) is an autoimmune disease characterized by a high risk of vascular complications causing disability and mortality. Immune system dysfunction, especially, imbalance of regulatory T cells (Tregs), plays a central role in pathogenesis of T1DM. Interleukin-2 (IL-2) is a key cytokine for maintaining the Treg function. The T330G (rs2069762) polymorphism in promoter region of IL2 gene may affect its production, but its association with pathological biomarkers of diabetes is not well understood. Our aim was to investigate the possible association between T330G polymorphism of IL2 gene and the levels of laboratory markers reflecting systemic inflammation, endothelial dysfunction, fibrogenesis, and intestinal barrier permeability in T1DM patients. This cross-sectional study included 90 patients with T1DM. Genotyping for the IL-2 T330G polymorphism was performed using PCR method. Plasma concentrations of angiotensin-2, transforming growth factor-b (TGF-b), endothelin-1, C-reactive protein (CRP), markers of intestinal permeability (zonulin, LBP, BPI, sCD14), and other protein factors were determined by ELISA technique. Statistical analysis was performed using non-parametric methods. It was found that the carriers of TT genotype associated with lower IL-2 production, had statistically significantly higher levels of angiotensin-2 compared to the subjects with GG genotype (median 192.4 pg/mL vs. 88.0 pg/mL; p = 0.021). Patients with the TT genotype also showed higher concentrations of TGF-b compared to the heterozygous TG group (median 2.7 ng/mL vs. 1.8 ng/mL; p = 0.015). No significant associations of T330G polymorphism were found with levels of CRP, markers of intestinal permeability, or clinical parameters, including HbA1c and the frequency of The T330G polymorphism of IL2 gene in patients with T1DM is associated with activity of renin-angiotensin system and the levels of TGF-b, the main profibrotic cytokine. The genetically determined decrease in IL-2 production (TT variant of T330G polymorphism) may contribute to hyperactivation of these systems, thus playing a key role in development of vascular complications. This gene variant could be considered a potential genetic marker for risk stratification and personalized therapy in T1DM.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>сахарный диабет 1-го типа</kwd><kwd>IL-2</kwd><kwd>полиморфизм генов</kwd><kwd>T330G</kwd><kwd>ангиотензин-2</kwd><kwd>TGF-β</kwd><kwd>эндотелиальная дисфункция</kwd></kwd-group><kwd-group xml:lang="en"><kwd>type 1 diabetes mellitus</kwd><kwd>IL-2</kwd><kwd>gene polymorphism</kwd><kwd>T330G</kwd><kwd>angiotensin-2</kwd><kwd>transforming growth factor-β</kwd><kwd>endothelial dysfunction</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено за счет гранта Российского научного фонда № 24-25-20052, https://rscf.ru/project/24-25-20052/.</funding-statement><funding-statement xml:lang="en">The research was supported by the Russian Science Foundation grant No. 24-25-20052, https://rscf.ru/project/24-25-20052/.</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">Atkinson M.A., Eisenbarth G.S., Michels A.W. 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