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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">ssmu</journal-id><journal-title-group><journal-title xml:lang="ru">Бюллетень сибирской медицины</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of Siberian Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1682-0363</issn><issn pub-type="epub">1819-3684</issn><publisher><publisher-name>Siberian State Medical University, the Ministry of Healthcare of the Russian Federation</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20538/1682-0363-2015-4-41-45</article-id><article-id custom-type="elpub" pub-id-type="custom">ssmu-206</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 PAPERS</subject></subj-group></article-categories><title-group><article-title>ИЗМЕНЕНИЕ СИСТЕМЫ ГЛУТАТИОНА В КЛЕТКАХ ОПУХОЛЕВОЙ ЛИНИИ Р19 ПРИ ГИПОКСИИ</article-title><trans-title-group xml:lang="en"><trans-title>CHANGES IN THE GLUTATHIONE SYSTEM IN P19 EMBRYONAL CARCINOMA CELLS UNDER HYPOXIC CONDITIONS</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Орлов</surname><given-names>Д. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Orlov</surname><given-names>D. S.</given-names></name></name-alternatives><bio xml:lang="ru"/><bio xml:lang="en"/><email xlink:type="simple">olnosareva@yandex.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>Рязанцева</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ryazantseva</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Рязанцева Наталья Владимировна – доктор медицинских наук, профессор, профессор кафедры биофизики Института фундаментальной биологии и биотехнологии Сибирского федерального университета; профессор кафедры биологической химии с курсами медицинской, фармацевтиче-ской и токсикологической химии КрасГМУ им. проф. В.Ф. Войно-Ясенецкого </p></bio><bio xml:lang="en"/><email xlink:type="simple">olnosareva@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Степовая</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Stepovaya</surname><given-names>Ye. A.</given-names></name></name-alternatives><bio xml:lang="ru"/><bio xml:lang="en"/><email xlink:type="simple">olnosareva@yandex.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>Носарева</surname><given-names>О. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Nosareva</surname><given-names>O. L.</given-names></name></name-alternatives><bio xml:lang="ru"/><bio xml:lang="en"/><email xlink:type="simple">olnosareva@yandex.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>Шахристова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shakhristova</surname><given-names>Ye. V.</given-names></name></name-alternatives><bio xml:lang="ru"/><bio xml:lang="en"/><email xlink:type="simple">olnosareva@yandex.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>Иванов</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivanov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"/><bio xml:lang="en"/><email xlink:type="simple">olnosareva@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Сибирский государственный медицинский университет, Томск</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Siberian State Medical University, Tomsk</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Сибирский федеральный университет, Красноярск;&#13;
Красноярский государственный медицинский университет им. проф. В.Ф. Войно-Ясенецкого</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Siberian Federal University, Krasnoyarsk; &#13;
Krasnoyarsk State Medical University named after Professor V.F. Voino-Yasenetsky</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2015</year></pub-date><pub-date pub-type="epub"><day>28</day><month>08</month><year>2015</year></pub-date><volume>14</volume><issue>4</issue><fpage>41</fpage><lpage>45</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Орлов Д.С., Рязанцева Н.В., Степовая Е.А., Носарева О.Л., Шахристова Е.В., Иванов В.В., 2015</copyright-statement><copyright-year>2015</copyright-year><copyright-holder xml:lang="ru">Орлов Д.С., Рязанцева Н.В., Степовая Е.А., Носарева О.Л., Шахристова Е.В., Иванов В.В.</copyright-holder><copyright-holder xml:lang="en">Orlov D.S., Ryazantseva N.V., Stepovaya Y.A., Nosareva O.L., Shakhristova Y.V., Ivanov V.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://bulletin.ssmu.ru/jour/article/view/206">https://bulletin.ssmu.ru/jour/article/view/206</self-uri><abstract><sec><title>Введение</title><p>Введение. Согласно современным представлениям, опухолевый рост, наряду с формированием окислительного стресса, сопровождается гипоксией. В настоящее время актуальным является изучение регуляции функционирования молекулярных систем клеток с помощью конформационных изменений белков.</p><p>Цель исследования – оценить состояние системы глутатиона и уровень глутатионилирования бел-ков в опухолевых клетках линии Р19 при гипоксии.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. Материалом для исследования служили опухолевые клетки линии Р19 (тератокарцинома мыши), культивированные в условиях нормоксии и гипоксии. Методом спектрофотометрии определяли концентрацию общего, окисленного, восстановленного и белково-связанного глутатиона, величину соотношения восстановленной фракции тиола к окисленной, а также активность глутатионпероксидазы и глутатионредуктазы.</p></sec><sec><title>Результаты</title><p>Результаты. Дисбаланс системы глутатиона сопровождался снижением редокс-статуса опухолевых клеток линии Р19 в условиях гипоксии на фоне увеличения содержания белково-связанного глутатиона.</p></sec><sec><title>Заключение</title><p>Заключение. В результате проведенного исследования установлено формирование окислительно-го стресса при моделировании гипоксии в опухолевых клетках линии Р19. Увеличение содержания белково-связанного глутатиона может свидетельствовать об участии процесса глутатионилирования протеинов в регуляции метаболизма и функций опухолевых клеток линии Р19 при гипоксии.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. According to modern perceptions, tumor growth, along with oxidative stress formation, is accompanied by hypoxia. Nowadays studying the regulation of cellular molecular system functioning by conformational changes in proteins appears to be a topical issue. Research goal was to evaluate the state of the glutathione system and the level of protein glutathionylation in P19 embryonal carcinoma (EC) cells under hypoxic conditions.</p></sec><sec><title>Material and methods</title><p>Material and methods. P19 EC cells (mouse embryonal carcinoma) cultured under normoxic and hypox-ic conditions served the research material.The concentration of total, oxidized, reduced and protein-bound glutathione, the reduced to oxidized thiol ratio as well as glutathione peroxidase and glutathione reductase activity were determined by spectropho-tometry.</p></sec><sec><title>Results</title><p>Results. Glutathione imbalance was accompanied by a decrease in P19 EC cell redox status under hypox-ic conditions against the backdrop of a rise in protein-bound glutathione.</p></sec><sec><title>Conclusions</title><p>Conclusions. As a result of the conducted study oxidative stress formation was identified when modeling hypoxia in P19 embryonal carcinoma cells. The rise in the concentration of protein-bound glutathione may indicate the role of protein glutathionylation in regulation of P19 cell metabolism and functions un-der hypoxia. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>глутатион</kwd><kwd>гипоксия</kwd><kwd>окислительный стресс</kwd><kwd>опухолевый рост</kwd></kwd-group><kwd-group xml:lang="en"><kwd>glutathione</kwd><kwd>hypoxia</kwd><kwd>oxidative stress</kwd><kwd>tumor growth</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Российский гуманитарный научный фонд</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">Кулинский В.И., Колесниченко Л.С. Глутатион ядра клетки и его функции // Биомедицинская химия. 2010. № 56 (6). С. 657–662.</mixed-citation><mixed-citation xml:lang="en">Kulinskiy V.I., Kolesnichenko L.S. 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