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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">183008</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">Secreted transcription factor HOXB4 promotes human ESCs endothelial lineage</article-title><trans-title-group xml:lang="ru"><trans-title>Секретируемый транскрипционный фактор HOXB4 стимулирует дифференцировку эндотелия из ЭСК человека</trans-title></trans-title-group></title-group><contrib-group><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>Mufasalov</surname><given-names>I. A.</given-names></name><name xml:lang="ru"><surname>Муфазалов</surname><given-names>И. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>redaktor@celltranspl.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Voltchkov</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="aff2"/></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 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><pub-date date-type="pub" iso-8601-date="2007-03-15" publication-format="electronic"><day>15</day><month>03</month><year>2007</year></pub-date><volume>2</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>56</fpage><lpage>59</lpage><history><date date-type="received" iso-8601-date="2023-02-03"><day>03</day><month>02</month><year>2023</year></date><date date-type="accepted" iso-8601-date="2023-02-03"><day>03</day><month>02</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2007, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2007, Эко-Вектор</copyright-statement><copyright-year>2007</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/183008">https://genescells.ru/2313-1829/article/view/183008</self-uri><abstract xml:lang="en"><p>The effect of the transcription factor HOXB4 on differentiation abilities of human ESCs to endothelial lineage was the aim of the present study. HOXB4 is a multifunctional transcription factor inducing or inhibiting apoptosis, promoting or repressing cell proliferation and differentiation. HOXB4 plays an important role in development and hematopoesis. OP9 stromal cells or OP9hoxb4 cells secreting transcription factor HOXB4-TAT were co-cultured with human embryonic stem cells to induce endothelial differentiation. OP9hoxb4 feeder cells significantly promoted timing of endothelium maturation both on the level of immunological makers expression and functionally in comparison with OP9 feeder. Thus our data indicate that secreted HOXB4-TAT largely influence controlled differentiation of human ESCs to endothelial cells.</p></abstract><trans-abstract xml:lang="ru"><p>Цепью данного исследования было выяснить, влияет ли секретируемый транскрипционный фактор HOXB4 на дифференцировку ЭСК человека в эндотелий. HOXB4 - мулыгифункциональный транскрипционный фактор, способный индуцировать или подавлять апоптоз, стимулировать или репрессировать пролиферацию и дифференцировку клеток. Известна важная роль HOXB4 в регуляции гемопоэза. Для выяснения влияния HOXB4 на дифференцировку в эндотелий было проведено кокультивирование ЭСК человека со стромальными клетками линии OP9 и клетками линии OP9hoxB4, секретирующими транскрипционный фактор HOXB4-TAT. Проведенный иммуногистохимический анализ не выявил различие экспрессии клетками эндотелиальных маркеров в зависимости от используемого фидера, но маркеры зрелого эндотелия (CD 105) и сосудоподобные структуры, растущие на фидере из OP9hoxB4, проявлялись быстрее, чем на фидере OP9. Таким образом, наши данные позволяют утверждать, что секретируемый HOXB4-TAT оказывает влияние на контролируемую дифференцировку эмбриональных стволовых клеток человека по эндотелиальному пути.</p></trans-abstract><kwd-group xml:lang="en"><kwd>endothelium</kwd><kwd>differentiation</kwd><kwd>hESCs</kwd><kwd>HOXB4</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>эндотелий</kwd><kwd>дифференцировка</kwd><kwd>ЭСК человека</kwd><kwd>HOXB4</kwd></kwd-group><funding-group><funding-statement xml:lang="en">The work was financed by grants 05-04-49310-a from the Russian Foundation for Basic Research and the program "Molecular and Cellular Biology" of the Presidium of the Russian Academy of Sciences.</funding-statement><funding-statement xml:lang="ru">Работа финансировалась из грантов РФФИ 05-04- 49310-а ипрограммы «Молекулярная и клеточная биология» Президиума РАН.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Choi K., Kennedy M., Kazarov A. et al. 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