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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">10578</article-id><article-id pub-id-type="doi">10.32607/20758251-2013-5-4-83-93</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">Alu- and 7SL RNA Analogues Suppress MCF-7 Cell Viability through Modulating the Transcription of Endoplasmic Reticulum Stress Response Genes</article-title><trans-title-group xml:lang="ru"><trans-title>Аналоги Alu- и 7SL РНК подавляют жизнеспособность клеток MCF-7, модулируя транскрипцию генов ответа на стресс эндоплазматического ретикулума</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Baryakin</surname><given-names>D. N.</given-names></name><name xml:lang="ru"><surname>Барякин</surname><given-names>Д. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>baryakindn@niboch.nsc.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Semenov</surname><given-names>D. V.</given-names></name><name xml:lang="ru"><surname>Семенов</surname><given-names>Д. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>baryakindn@niboch.nsc.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Savelуeva</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Савельева</surname><given-names>A. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>baryakindn@niboch.nsc.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Koval</surname><given-names>O. A.</given-names></name><name xml:lang="ru"><surname>Коваль</surname><given-names>O. A.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>baryakindn@niboch.nsc.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Rabinov</surname><given-names>I. V.</given-names></name><name xml:lang="ru"><surname>Рабинов</surname><given-names>И. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>baryakindn@niboch.nsc.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kuligina</surname><given-names>E. V.</given-names></name><name xml:lang="ru"><surname>Кулигина</surname><given-names>E. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>baryakindn@niboch.nsc.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Riсhter</surname><given-names>V. A.</given-names></name><name xml:lang="ru"><surname>Рихтер</surname><given-names>В. A.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>baryakindn@niboch.nsc.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт химической биологии и фундаментальной медицины СО РАН</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Novosibirsk State University</institution></aff><aff><institution xml:lang="ru">Новосибирский национальный исследовательский государственный университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2013-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2013</year></pub-date><volume>5</volume><issue>4</issue><issue-title xml:lang="en">VOL 5, NO4 (2013)</issue-title><issue-title xml:lang="ru">ТОМ 5, №4 (2013)</issue-title><fpage>83</fpage><lpage>93</lpage><history><date date-type="received" iso-8601-date="2020-01-17"><day>17</day><month>01</month><year>2020</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2013, Baryakin D.N., Semenov D.V., Savelуeva A.V., Koval O.A., Rabinov I.V., Kuligina E.V., Riсhter V.A.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2013, Барякин Д.Н., Семенов Д.В., Савельева A.В., Коваль O.A., Рабинов И.В., Кулигина E.В., Рихтер В.A.</copyright-statement><copyright-year>2013</copyright-year><copyright-holder xml:lang="en">Baryakin D.N., Semenov D.V., Savelуeva A.V., Koval O.A., Rabinov I.V., Kuligina E.V., Riсhter V.A.</copyright-holder><copyright-holder xml:lang="ru">Барякин Д.Н., Семенов Д.В., Савельева A.В., Коваль O.A., Рабинов И.В., Кулигина E.В., Рихтер В.A.</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/10578">https://actanaturae.ru/2075-8251/article/view/10578</self-uri><abstract xml:lang="en"><p>11% of the human genome is composed of Alu-retrotransposons, whose transcription by RNA polymerase III (Pol III) leads to the accumulation of several hundreds to thousands of Alu-RNA copies in the cytoplasm. Expression of Alu-RNA Pol III is significantly increased at various levels of stress, and the increase in the Alu-RNA level is accompanied by a suppression of proliferation, a decrease in viability, and induction of apoptotic processes in human cells. However, the question about the biological functions of Pol III Alu-transcripts, as well as their mechanism of action, remains open. In this work, analogues of Alu-RNA and its evolutionary ancestor, 7SL RNA, were synthesized. Transfection of human breast adenocarcinoma MCF-7 cells with the Alu-RNA and 7SL RNA analogues is accompanied by a decrease in viability and by induction of proapoptotic changes in these cells. The analysis of the combined action of these analogues and actinomycin D or tamoxifen revealed that the decreased viability of MCF-7 cells transfected with Alu-RNA and 7SL RNA was due to the modulation of transcription. A whole transcriptome analysis of gene expression revealed that increased gene expression of the transcription regulator NUPR1 (p8), as well as the transcription factor DDIT3 (CHOP), occurs under the action of both the Alu- and 7SL RNA analogues on MCF-7 cells. It has been concluded that induction of proapoptotic changes in human cells under the influence of the Alu-RNA and 7SL RNA analogues is related to the transcriptional activation of the genes of cellular stress factors, including the endoplasmic reticulum stress response factors.</p></abstract><trans-abstract xml:lang="ru"><p>Геном человека на 11% состоит из Alu-ретротранспозонов, транскрипция которых РНК-полимеразой III (Pol III) приводит к накоплению от нескольких сотен до тысяч копий Alu-РНК в цитоплазме. Экспрессия Pol III Alu-РНК существенно возрастает при различных стрессах, а повышение уровня Alu-РНК сопровождается подавлением пролиферации, снижением жизнеспособности и индукцией апоптотических процессов в клетках человека. Однако вопрос о биологических функциях Pol III Alu-транскриптов, а также механизм их действия в настоящее время остается открытым. В представленной работе синтезированы аналоги Alu-РНК и ее эволюционного предшественника 7SL РНК. Трансфекция клеток аденокарциномы молочной железы человека MCF-7 аналогами Alu-РНК и 7SL РНК сопровождается снижением жизнеспособности и индукцией проапоптотических изменений в этих клетках. Анализ совместного действия этих аналогов и актиномицина D или тамоксифена показал, что снижение жизнеспособности клеток MCF-7, трансфицированных Alu-РНК и 7SL РНК, обусловлено модуляцией транскрипции. В результате полнотранскриптомного анализа экспрессии генов установлено, что под действием аналогов и Alu-, и 7SL РНК в клетках MCF-7 усиливается экспрессия генов регулятора транскрипции NUPR1 (p8), а также фактора транскрипции DDIT3 (CHOP). Сделан вывод, что индукция проапоптотических изменений клеток человека под действием аналогов Alu-РНК и 7SL РНК связана с активацией транскрипции генов факторов клеточного стресса, в том числе факторов ответа на стресс эндоплазматического ретикулума.</p></trans-abstract><kwd-group xml:lang="en"><kwd>Alu-repeats</kwd><kwd>Alu-RNA</kwd><kwd>7SL RNA</kwd><kwd>MCF-7 human breast adenocarcinoma cells</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>Alu-повторы</kwd><kwd>Alu-РНК</kwd><kwd>7SL РНК</kwd><kwd>клетки аденокарциномы молочной железы человека MCF-7</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This work was supported by the RFBR (grant No. 13-04-01058), Interdisciplinary Integration Project of the Presidium of the SB RAS No. 84 (2012–2014).</funding-statement><funding-statement xml:lang="ru">Работа поддержана РФФИ (грант № 13-04-01058), междисциплинарным интеграционным проектом Президиума СО РАН № 84 (2012–2014 гг.).</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>[1] International Human Genome Sequencing Consortium // Nature 2001, V.409, №6822, P.860-921</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>[2] Deininger P.L., Batzer M.A. // Genome Res. 2002, V.12, №10, P.1455-1465</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>[3] Batzer M.A., Deininger P.L., Hellmann-Blumberg U., Jurka J., Labuda D., Rubin C.M., Schmid C.W., Zietkiewicz E., Zuckerkandl E. // J. 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