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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">phkinetica</journal-id><journal-title-group><journal-title xml:lang="ru">Фармакокинетика и Фармакодинамика</journal-title><trans-title-group xml:lang="en"><trans-title>Pharmacokinetics and Pharmacodynamics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2587-7836</issn><issn pub-type="epub">2686-8830</issn><publisher><publisher-name>ООО «Издательство ОКИ»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.37489/2587-7836-2026-1-20-24</article-id><article-id custom-type="edn" pub-id-type="custom">QBBIQY</article-id><article-id custom-type="elpub" pub-id-type="custom">phkinetica-500</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>ДОКЛИНИЧЕСКИЕ ИССЛЕДОВАНИЯ ФАРМАКОДИНАМИКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PRECLINICAL PHARMACODYNAMICS STUDIES</subject></subj-group></article-categories><title-group><article-title>Влияние 2-изобутил-4,6-диметил-5-оксипиримидина гидрохлорида с противоопухолевой активностью на фазы клеточного цикла на модели Jurkat</article-title><trans-title-group xml:lang="en"><trans-title>Effect of 2-isobutyl-4,6-dimethyl-5-oxypyrimidine hydrochloride with antitumor activity on the cell cycle phases in the Jurkat model</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1084-690X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Журиков</surname><given-names>Р. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhurikov</surname><given-names>R. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Журиков Руслан Владимирович — ведущий инженер отдела лекарственной токсикологии.</p><p>Москва</p></bio><bio xml:lang="en"><p>Ruslan V. Zhurikov — Leading engineer of the department of drug toxicology.</p><p>Moscow</p></bio><email xlink:type="simple">zhurikovrv@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0112-2734</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Соколовская</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sokolovskaya</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Соколовская Алиса Анатольевна — к. б. н., в. н. с. лаборатории клеточного стресса.</p><p>Москва</p></bio><bio xml:lang="en"><p>Alisa A. Sokolovskaya — PhD, Cand. Sci. (Biol.), Leading Research at the Laboratory of Cellular Stress.</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2083-0832</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Коваленко</surname><given-names>Л. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Kovalenko</surname><given-names>L. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Коваленко Лариса Петровна — д. б. н., в. н. с. лаборатории лекарственной токсикологии отдела лекарственной токсикологии.</p><p>Москва</p></bio><bio xml:lang="en"><p>Larisa P. Kovalenko — PhD, Dr. Sci. (Biology), Leading Research Scientist of Laboratory Drug Toxicology Department of Drug Toxicology.</p><p>Moscow</p></bio><email xlink:type="simple">kovalenko_lp@academpharm.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/0000-0002-9847-8058</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Колик</surname><given-names>Л. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Kolik</surname><given-names>L. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Колик Лариса Геннадьевна — д. б. н., профессор РАН, руководитель лаборатории лекарственной токсикологии.</p><p>Москва</p></bio><bio xml:lang="en"><p>Larisa G. Kolik — PhD, Dr. Sci. (Biology), Professor RAS, Head of laboratory of medicinal toxicology.</p><p>Moscow</p></bio><email xlink:type="simple">kolik_lg@academpharm.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБНУ «ФИЦ оригинальных и перспективных биомедицинских и фармацевтических технологий»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal research center for innovator and emerging biomedical and pharmaceutical technologies</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБНУ «НИИ общей патологии и патофизиологии»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of General Pathology and Pathophysiology</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>30</day><month>03</month><year>2026</year></pub-date><volume>0</volume><issue>1</issue><fpage>20</fpage><lpage>24</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Журиков Р.В., Соколовская А.А., Коваленко Л.П., Колик Л.Г., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Журиков Р.В., Соколовская А.А., Коваленко Л.П., Колик Л.Г.</copyright-holder><copyright-holder xml:lang="en">Zhurikov R.V., Sokolovskaya A.A., Kovalenko L.P., Kolik L.G.</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.pharmacokinetica.ru/jour/article/view/500">https://www.pharmacokinetica.ru/jour/article/view/500</self-uri><abstract><sec><title>Введение</title><p>Введение. Одним из этапов при изучении новых противоопухолевых средств является определение способности блокировать фазы клеточного цикла для позиционирования при химиотерапии. Гидрохлорид 2-изобутил-4,6-диметил-5-оксипиримидина (СНК-578) обладает противоопухолевой и антиметастатической активностью на моделях карциномы лёгкого Lewis и меланомы В16.</p></sec><sec><title>Цель</title><p>Цель. Оценка влияния СНК-578 в сравнении с доксорубицином (ДОКС) на фазы клеточного цикла клеток Jurkat.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Эксперименты выполнены на клетках линии Jurkat (клеточная линия лимфобластного лейкоза). После 24и 48-часовой инкубации с ДОКС (10-5 М) или СНК-578 (10-4 М и 10-5 М) клетки окрашивали раствором йодистого пропидия с РНКазой А с последующим определением количества клеток с помощью проточной цитометрии.</p></sec><sec><title>Результаты</title><p>Результаты. При культивировании в течение 48 ч клеток Jurkat с ДОКС или СНК-578 (10-4 М) выявлено увеличение доли клеток, находящихся в G1 фазе клеточного цикла, и уменьшение доли клеток в S фазе.</p></sec><sec><title>Выводы</title><p>Выводы. На культуре клеток линии Jurkat установлено, что СНК-578, подобно ДОКС, действует на синтез ДНК в S фазе клеточного цикла. Полученные данные подтверждают возможность усиления противоопухолевого действия при совместном применении СНК-578 и ДОКС, ранее зарегистрированного в модельных опытах in vivo.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Evaluating the ability of novel antitumor compounds to arrest specific phases of the cell cycle is a key step in their preclinical characterization for chemotherapeutic application. The synthesized compound 2-isobutyl-4,6-dimethyl-5-oxypyrimidine in salt (CHK-578) form, have demonstrated antitumor and antimetastatic efficacy in models of Lewis lung carcinoma and B16 melanoma.</p></sec><sec><title>Objective</title><p>Objective. To evaluate the effects of CHK-578 in comparison with doxorubicin (DOX) on the cell cycle phases of Jurkat cells.</p></sec><sec><title>Materials and Methods</title><p>Materials and Methods. Experiments were conducted on Jurkat cell line (a lymphoblastic leukemia cell line). After 24and 48-hour incubation with DOX (10-5 M) or CHK-578 (10-4 M and 10-5 M), the cells were stained with a propidium iodide solution containing RNase A, followed by cell quantification using flow cytometry.</p></sec><sec><title>Results</title><p>Results. Culturing Jurkat cells with DOX or CHK-578 (10-4 M) for 48 hours revealed an increase in the proportion of cells in the G₁ phase of the cell cycle and a decrease in the proportion of cells in the S phase.</p></sec><sec><title>Conclusions</title><p>Conclusions. Using the Jurkat cell line culture, it was established that CHK-578, similar to DOX, affects DNA synthesis in the S phase of the cell cycle. The obtained data confirm the possibility of enhancing the antitumor effect with the combined use of CHK-578 and DOX, which was previously observed in in vivo model experiments.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>2-изобутил-4</kwd><kwd>6-диметил-5-оксипиримидин</kwd><kwd>клеточный цикл</kwd><kwd>доксорубицин</kwd><kwd>Jurkat</kwd></kwd-group><kwd-group xml:lang="en"><kwd>2-isobutyl-4</kwd><kwd>6-dimethyl-5-oxypyrimidine</kwd><kwd>cell cycle</kwd><kwd>doxorubicin</kwd><kwd>Jurkat</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено в рамках темы FGFG-20250003 «Технологии сбережения здоровья на основе методологии доклинических исследований безопасности лекарственных средств» при поддержке Министерства науки и высшего образования РФ</funding-statement><funding-statement xml:lang="en">The study was carried out as part of the FGFG-20250003 topic "Health-Saving Technologies Based on the Methodology of Preclinical Drug Safety Research" with the support of the Ministry of Science and Higher Education of the Russian Federation</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">Potter AJ, Rabinovitch PS. 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