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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">mes</journal-id><journal-title-group><journal-title xml:lang="ru">Экстремальная биомедицина</journal-title><trans-title-group xml:lang="en"><trans-title>Extreme Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">3033-8964</issn><issn pub-type="epub">3033-8972</issn><publisher><publisher-name>Centre for Strategic Planning of the Federal Medical and Biological Agency</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.47183/mes.2024-26-3-15-21</article-id><article-id custom-type="elpub" pub-id-type="custom">mes-8</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>РАДИОБИОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RADIOBIOLOGY</subject></subj-group></article-categories><title-group><article-title>Экспрессия генов SPI1 и GATA3 и субпопуляционный состав Т-хелперов у хронически облученных людей</article-title><trans-title-group xml:lang="en"><trans-title>Expression of genes SPI1 and GATA3 and Т-helpers subpopulation combination in chronically exposed people</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6685-1823</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Никифоров</surname><given-names>В. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikiforov</surname><given-names>V. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Никифоров Владислав Сергеевич, канд. биол. наук, доцент</p><p>Челябинск</p></bio><bio xml:lang="en"><p>Chelyabinsk</p></bio><email xlink:type="simple">nikiforovx@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/0000-0002-1695-1340</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Котикова</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Kotikova</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Котикова Алиса Игоревна </p><p>Челябинск</p></bio><bio xml:lang="en"><p>Chelyabinsk</p></bio><email xlink:type="simple">kotikova@urcrm.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/0000-0003-2583-5808</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Аклеев</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Akleyev</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Аклеев Александр Васильевич, д-р мед. наук, профессор</p><p>Челябинск</p></bio><bio xml:lang="en"><p>Chelyabinsk</p></bio><email xlink:type="simple">akleyev@urcrm.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Уральский научно-практический центр радиационной медицины Федерального медико-биологического агентства; Челябинский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ural Scientific and Practical Center for Radiation Medicine of the Federal Medical and Biological Agency of Russia; Chelyabinsk State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>15</day><month>10</month><year>2024</year></pub-date><volume>26</volume><issue>3</issue><fpage>15</fpage><lpage>21</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Никифоров В.С., Котикова А.И., Аклеев А.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Никифоров В.С., Котикова А.И., Аклеев А.В.</copyright-holder><copyright-holder xml:lang="en">Nikiforov V.S., Kotikova A.I., Akleyev A.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.extrememedicine.ru/jour/article/view/8">https://www.extrememedicine.ru/jour/article/view/8</self-uri><abstract><sec><title>Введение</title><p>Введение. Влияние неблагоприятных факторов, в том числе ионизирующего излучения, приводит к нарушению экспрессии ключевых транскрипционных факторов и соотношения основных типов Т-хелперных клеток, что, в свою очередь, инициирует широкий спектр иммунопатологических расстройств.</p></sec><sec><title>Цель</title><p>Цель. Изучение экспрессии мРНК генов SPI1 и GATA3, а также субпопуляционного состава Т-хелперов 1-го и 2-го типов у хронически облученных людей в период реализации отдаленных последствий радиационного воздействия.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Объектом изучения служили мононуклеарные клетки периферической крови, полученные от 98 жителей прибрежных сел реки Течи, среди которых были выделены группа облученных лиц (средняя накопленная доза облучения красного костного мозга составила 706,8 ± 62,7 мГр) и группа сравнения (доза облучения не превышала 70 мГр). Средний возраст людей на время проведения обследования составлял 71,1 ± 0,9 года (58–87 лет). Оценка относительного содержания мРНК исследуемых генов осуществлялась с использованием метода ПЦР-РВ. Исследование количества Т-хелперов 1-го и 2-го типов проводилось методом проточной цитометрии в составе популяций Т-хелперов центральной и эффекторной памяти.</p></sec><sec><title>Результаты</title><p>Результаты. Отмечено снижение абсолютного и относительного количества Т-хелперов 2-го типа, входящих в состав Т-хелперов центральной памяти у хронически облученных лиц. У людей с накопленными дозами более 1000 мГр зафиксированы увеличение соотношения Th1/Th2 в популяции Т-хелперов центральной памяти по отношению к необлученным лицам (p = 0,01), а также положительная корреляционная связь между относительным содержанием Т-хелперов 2-го типа эффекторной памяти и экспрессией гена GATA3.</p></sec><sec><title>Выводы</title><p>Выводы. Результаты исследования показывают, что изменения в субпопуляционном составе Т-хелперных клеток в отдаленные сроки у хронически облученных людей носят невыраженный характер. Однако эти изменения могут напрямую зависеть от суммарной поглощенной дозы облучения, что определяет перспективы для дальнейшего анализа состояния здоровья людей, подвергшихся хроническому облучению в высоких дозах. </p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. The influence of adverse factors including ionizing radiation leads to a violation of key transcription factors expression and the ratio of the main types of T-helper cells, which in turn initiates a wide range of immunopathological disorders.</p></sec><sec><title>Objective</title><p>Objective. The objective of this research was to study the mRNA expression of the SPI1 and GATA3 genes, as well as the composition of T-helper type 1 and 2 subpopulations, in chronically exposed people during the period of radiation exposure late effects development.</p></sec><sec><title>Mаterials and methods</title><p>Mаterials and methods. The study was carried out on peripheral blood mononuclear cells obtained from 98 residents of the Techa riverside settlements. Two study groups were formed: the group of exposed individuals (average accumulated dose for the red bone marrow radiation was 706.8±62.7 mGy) and the comparison group (radiation dose did not exceed 70 mGy). The median age of the studied individuals at examination was 71.1 ± 0.9 years (58–87 years). The relative mRNA content of the studied genes was assessed using real-time PCR. The number of T-helpers of types 1 and 2 in the populations of T-helpers of central and effector memory was calculated using the flow cytometry method.</p></sec><sec><title>Results</title><p>Results. There was a decrease in the absolute and relative number of type 2 T-helpers included in the T-helpers of central memory in chronically exposed individuals. In people with accumulated doses ≥1000 mGy, an increase in the Th1/Th2 ratio of T-helpers of the central memory (p=0.01), as well as the positive correlation relationship between the relative content of type 2 T-helpers of the effector memory and the expression of the GATA3 gene were registered relative to unexposed individuals.</p></sec><sec><title>Conclusions</title><p>Conclusions. The obtained results indicate that changes in the composition of T-helper cell subpopulations in chronically exposed individuals are not pronounced in the long-term period. However, these changes may directly depend on the total absorbed dose, which in turn determines the prospects for further analysis of the health status of people exposed to chronic high-dose radiation.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>экспрессия генов</kwd><kwd>хроническое облучение</kwd><kwd>Т-хелперы 1 типа</kwd><kwd>Т-хелперы 2 типа</kwd><kwd>река Теча</kwd><kwd>малые дозы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>gene expression</kwd><kwd>chronic radiation exposure</kwd><kwd>T-helpers 1 type</kwd><kwd>T-helpers 2 type</kwd><kwd>Techa River</kwd><kwd>low doses</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания ФМБА России по теме «Исследование влияния хронического радиационного воздействия на состояние Т-клеточного звена иммунной системы человека» № 388-03-2023-112 от 19.01.2023.</funding-statement><funding-statement xml:lang="en">The study was carried out within the framework of the state assignment of the Federal Medical and Biological Agency of Russia "Investigation of the influence of chronic radiation exposure on the state of the T-cell link of the human immune system" № 388-03-2023-112 from 19.01.2023.</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">UNSCEAR Biological mechanisms relevant for the inference of cancer risks from low-dose and low-dose-rate radiation. 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