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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">Acta Naturae</journal-id><journal-title-group><journal-title xml:lang="en">Acta Naturae</journal-title><trans-title-group xml:lang="ru"><trans-title>Acta Naturae</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2075-8251</issn><publisher><publisher-name xml:lang="en">Acta Naturae Ltd</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">27443</article-id><article-id pub-id-type="doi">10.32607/actanaturae.27443</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Research Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Экспериментальные 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">5'-Noraristeromycin Repurposing: Well-known S-Adenosyl-L-homocysteine Hydrolase Inhibitor As a Potential Drug Against Leukemia</article-title><trans-title-group xml:lang="ru"><trans-title>Перепрофилирование 5ˊ-нораристеромицина: ингибитор S-аденозил-L-гомоцистеингидролазы в качестве потенциального антилейкозного препарата</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Novikova</surname><given-names>O. N.</given-names></name><name xml:lang="ru"><surname>Новикова</surname><given-names>О. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>khandazhinskaya@bk.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Matyugina</surname><given-names>E. S.</given-names></name><name xml:lang="ru"><surname>Матюгина</surname><given-names>Е. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>khandazhinskaya@bk.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gorshenin</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Горшенин</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>khandazhinskaya@bk.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Velikorodnaya</surname><given-names>Yu. I.</given-names></name><name xml:lang="ru"><surname>Великородная</surname><given-names>Ю. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>khandazhinskaya@bk.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Krengauz</surname><given-names>M. D.</given-names></name><name xml:lang="ru"><surname>Кренгауз</surname><given-names>М. Д.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>khandazhinskaya@bk.ru</email><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Vedernikova</surname><given-names>V. O.</given-names></name><name xml:lang="ru"><surname>Ведерникова</surname><given-names>В. О.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>khandazhinskaya@bk.ru</email><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Spirin</surname><given-names>P. V.</given-names></name><name xml:lang="ru"><surname>Спирин</surname><given-names>П. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>khandazhinskaya@bk.ru</email><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Prasolov</surname><given-names>V. S.</given-names></name><name xml:lang="ru"><surname>Прасолов</surname><given-names>В. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>khandazhinskaya@bk.ru</email><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kochetkov</surname><given-names>S. N.</given-names></name><name xml:lang="ru"><surname>Кочетков</surname><given-names>С. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>khandazhinskaya@bk.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1452-0253</contrib-id><name-alternatives><name xml:lang="en"><surname>Khandazhinskaya</surname><given-names>A. L.</given-names></name><name xml:lang="ru"><surname>Хандажинская</surname><given-names>А. Л.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>khandazhinskaya@bk.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Research Institute of Hygiene, Toxicology and Occupational Pathology, Federal Medical and Biological Agency</institution></aff><aff><institution xml:lang="ru">Научно-исследовательский институт гигиены, токсикологии и профпатологии Федерального медико-биологического агентства</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Engelhardt Institute of Molecular Biology, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт молекулярной биологии им. В.А. Энгельгардта РАН</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Moscow Institute of Physics and Technology (National Research University)</institution></aff><aff><institution xml:lang="ru">Московский физико-технический институт (национальный исследовательский университет)</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">Center for High-Precision Editing and Genetic Technologies for Biomedicine, Institute of Molecular Biology. V.A. Engelhardt, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Центр высокоточного редактирования и генетических технологий для биомедицины, Институт молекулярной биологии им. В.А. Энгельгардта РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-11-12" publication-format="electronic"><day>12</day><month>11</month><year>2024</year></pub-date><volume>16</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>60</fpage><lpage>66</lpage><history><date date-type="received" iso-8601-date="2024-06-03"><day>03</day><month>06</month><year>2024</year></date><date date-type="accepted" iso-8601-date="2024-07-15"><day>15</day><month>07</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Novikova O.N., Matyugina E.S., Gorshenin A.V., Velikorodnaya Y.I., Krengauz M.D., Vedernikova V.O., Spirin P.V., Prasolov V.S., Kochetkov S.N., Khandazhinskaya A.L.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Новикова О.Н., Матюгина Е.С., Горшенин А.В., Великородная Ю.И., Кренгауз М.Д., Ведерникова В.О., Спирин П.В., Прасолов В.С., Кочетков С.Н., Хандажинская А.Л.</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Novikova O.N., Matyugina E.S., Gorshenin A.V., Velikorodnaya Y.I., Krengauz M.D., Vedernikova V.O., Spirin P.V., Prasolov V.S., Kochetkov S.N., Khandazhinskaya A.L.</copyright-holder><copyright-holder xml:lang="ru">Новикова О.Н., Матюгина Е.С., Горшенин А.В., Великородная Ю.И., Кренгауз М.Д., Ведерникова В.О., Спирин П.В., Прасолов В.С., Кочетков С.Н., Хандажинская А.Л.</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://actanaturae.ru/2075-8251/article/view/27443">https://actanaturae.ru/2075-8251/article/view/27443</self-uri><abstract xml:lang="en"><p>5ˊ-Noraristeromycin as a racemic mixture of enantiomers was found to exhibit a pronounced cytotoxic effect on leukemia cells; IC<sub>50</sub> for the Jurkat, K562, and THP-1 cell lines was 7.3, 1.3, and 3.7 μM, respectively. The general toxicity of 5'-noraristeromycin was studied in experiments on white mice upon single-dose intragastric administration; toxicometric parameters were determined, and the clinical and pathomorphological presentation of acute intoxication was studied. LD<sub>50</sub> of the substance was shown to be 63.2 (52.7÷75.8) mg/kg; LD<sub>16</sub>, 44.7 mg/kg, and LD<sub>84</sub>, 89.4 mg/kg. Administration of the substance at a dose within the studied dose range is accompanied by systemic damage to the internal organs and tissues of the experimental animals.</p></abstract><trans-abstract xml:lang="ru"><p>Установлено, что 5ˊ-нораристеромицин в виде рацемической смеси энантиомеров оказывает выраженный цитотоксический эффект на клетки лейкозов. <italic>IC</italic><sub>50</sub> 5'-нораристеромицина составила: для клеток линий Jurkat – 7.3, K562 – 1.7, THP-1 – 3.7 мкМ соответственно. Изучение общей токсичности 5'-нораристеромицина проведено в опытах на белых мышах при однократном внутрижелудочном поступлении в организм, установлены токсикометрические параметры, изучена клиническая и патоморфологическая картина острой интоксикации. Показано, что ЛД<sub>50 </sub>вещества составляет 63.2 (52.7÷75.8), ЛД<sub>16</sub> – 44.7, ЛД<sub>84</sub> – 89.4 мг/кг; введение соединения в изученном диапазоне доз сопровождается системным поражением внутренних органов и тканей подопытных животных.</p></trans-abstract><kwd-group xml:lang="en"><kwd>5ˊ-noraristeromycin</kwd><kwd>leukemia</kwd><kwd>cytotoxicity</kwd><kwd>acute toxicity</kwd><kwd>toxicometric parameters</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>5ˊ-нораристеромицин</kwd><kwd>лейкоз</kwd><kwd>противоопухолевая активность</kwd><kwd>острая токсичность</kwd><kwd>параметры токсикометрии</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Российский научный фонд (грант)</institution></institution-wrap><institution-wrap><institution xml:lang="en">Russian Science Foundation (grand)</institution></institution-wrap></funding-source><award-id>№ 23-64-10018</award-id></award-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Министерство науки и высшего образования Российской Федерации</institution></institution-wrap><institution-wrap><institution xml:lang="en">Ministry of Science and Higher Education of the Russian Federation (grant)</institution></institution-wrap></funding-source><award-id>075-15-2019-1660</award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>De Clercq E. // Med. 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