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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">Genes &amp; Cells</journal-id><journal-title-group><journal-title xml:lang="en">Genes &amp; Cells</journal-title><trans-title-group xml:lang="ru"><trans-title>Гены и Клетки</trans-title></trans-title-group><trans-title-group xml:lang="zh"><trans-title>Genes and Cells</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2313-1829</issn><issn publication-format="electronic">2500-2562</issn><publisher><publisher-name xml:lang="en">Human Stem Cells Institute</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">217698</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Original Study Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Оригинальные исследования</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">Double negative epigenetics regulation of genes in differentiation of human endothelial stem cells into endothelium</article-title><trans-title-group xml:lang="ru"><trans-title>Двойной негативный эпигенетический контроль генов, вовлеченных в регуляцию дифференцировки ЭСК человека в эндотелий</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Volchkov</surname><given-names>P. Yu.</given-names></name><name xml:lang="ru"><surname>Волчков</surname><given-names>П. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>redaktor@celltranspl.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>Lagarkova</surname><given-names>M. A.</given-names></name><name xml:lang="ru"><surname>Лагарькова</surname><given-names>М. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>redaktor@celltranspl.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Рrokhorovich</surname><given-names>M. A.</given-names></name><name xml:lang="ru"><surname>Прохорович</surname><given-names>М. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>redaktor@celltranspl.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kiselyev</surname><given-names>S. L.</given-names></name><name xml:lang="ru"><surname>Киселев</surname><given-names>С. Л.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>redaktor@celltranspl.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Vavilov Institute of General Genetics, RAS</institution></aff><aff><institution xml:lang="ru">Институт общей генетики им. Н.И. Вавилова РАН</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Institute of Gene Biology, RAS</institution></aff><aff><institution xml:lang="ru">Институт биологии гена РАН</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Institute of Genetics and Cytology, Siberian branch of RAS</institution></aff><aff><institution xml:lang="ru">Институт цитологии и генетики СО РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2007-06-15" publication-format="electronic"><day>15</day><month>06</month><year>2007</year></pub-date><volume>2</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>34</fpage><lpage>39</lpage><history><date date-type="received" iso-8601-date="2023-02-10"><day>10</day><month>02</month><year>2023</year></date><date date-type="accepted" iso-8601-date="2023-02-10"><day>10</day><month>02</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Эко-Вектор</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Eco-Vector</copyright-holder><copyright-holder xml:lang="ru">Эко-Вектор</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://genescells.ru/2313-1829/article/view/217698">https://genescells.ru/2313-1829/article/view/217698</self-uri><abstract xml:lang="en"><p>Тhere are a number of genes which expression is characteristic for endothelium. Тranscription factors GAТA-2 and -3, endothelial NO synthitase (eNOS) are among them. During early embryogenesis epigenetics mechanisms of gene regulation plays an important role. Human embryonic stem cells (hESCs) represent a valuable model to study early embryogenesis events. Using the previously developed model of hESCs differentiation to functional endothelium we compared status of GAТA-2, GAТA-3 and eNOS gene's promoters methylation in hESCs, hESCs-derived purified endothelial cells and human umbilical vein endothelial cells (HUVEC). Hypermethylation of promoter regions of genes studied in hESCs correlates with gene silencing whereas hypomethylation in hESCs-derived endothelial cells and HUVECs correlated with the high level of expression. Overall our data indicate the importance of epigenetic regulation for tissue-specific differentiation and provide the evidence that in the course of in vitro differentiation ESCs undergo the same epigenetic program as differentiating cells of embryo in vivo.</p></abstract><trans-abstract xml:lang="ru"><p>Сосудистый эндотелий является одним из первых дифференцированных видов клеток, которые появляются в раннем эмбриогенезе. Во взрослом организме сосудистый эндотелий играет важную роль в регуляции гомеостаза кровеносных сосудов и отделяет компоненты крови от остальных тканей организма. Эндотелий характеризуется экспрессией определенного набора генов, среди которых транскрипционные факторы GAТA-2, -3 и контролируемый ими специфический для сосудистого эндотелия ген eNOS. Большой вклад в контроль работы генов, особенно на этапах раннего развития, дают эпигенетические механизмы. Используя разработанную нами ранее модель контролируемой дифференцировки ЭСК человека в функциональный эндотелий, мы исследовали вклад метилирования промоторных областей генов eNOS, GAТA-2 и GAТA-3 в регуляцию экспрессии этих генов. Полученные данные показали, что гиперметилирование промоторных областей генов транскрипционного фактора GAТA-2 и контролируемого им гена eNOS в недифференцированных ЭСК человека блокирует их экспрессию. В эндотелиальных клетках, полученных из ЭСК, и в HUVEC эти области гипометилированы и гены экспрессируются. Таким образом, нами показано, что в ЭСК осуществляется двойной негативный контроль одного из путей дифференцировки клеток и для разработки схем направленной дифференцировки ЭСК важно знать и контролировать эпигенетический статус генома клеток.</p></trans-abstract><kwd-group xml:lang="en"><kwd>epigenetics</kwd><kwd>endothelial stem cells ESCs</kwd><kwd>differentiation</kwd><kwd>endothelium</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>эпигенетика</kwd><kwd>ЭСК человека</kwd><kwd>дифференцировка</kwd><kwd>эндотелий</kwd></kwd-group><funding-group><funding-statement xml:lang="en">The work was supported by the Russian Foundation for Basic Research 05-04-49310a and Federal Target Program "Research and development in priority areas of development of the scientific and technological complex of Russia for 2007-2012" GK No. 02.512.11.2060.</funding-statement><funding-statement xml:lang="ru">Работа была выполнена при поддержке РФФИ 05-04- 49310а и ФЦП «Исследования и разработки по приоритетным направлениям развития научно-технологического комплекса России на 2007-2012 годы» ГК № 02.512.11.2060.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Zambidis E.T., Oberlin E., Tavian M. et al. 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