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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">transmed</journal-id><journal-title-group><journal-title xml:lang="ru">Трансляционная медицина</journal-title><trans-title-group xml:lang="en"><trans-title>Translational Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2311-4495</issn><issn pub-type="epub">2410-5155</issn><publisher><publisher-name>Almazov National Medical Research Centre, Saint Petersburg, Russia</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18705/2311-4495-2024-11-3-284-293</article-id><article-id custom-type="elpub" pub-id-type="custom">transmed-940</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>РЕГЕНЕРАТИВНАЯ МЕДИЦИНА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>REGENERATIVE MEDICINE</subject></subj-group></article-categories><title-group><article-title>Исследование динамики активации Runx2 при индукции остеогенной дифференцировки</article-title><trans-title-group xml:lang="en"><trans-title>Investigation of the dynamics of Runx2 activation during induction of osteogenic differentiation</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1616-2296</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Громова</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Gromova</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Громова Екатерина Сергеевна, старший лаборант-исследователь лаборатории регенеративной биомедицины</p><p>Тихорецкий пр., д. 4, Санкт-Петербург, 194064</p></bio><bio xml:lang="en"><p>Ekaterina S. Gromova, Senior Research Laboratory Assistant at the Laboratory of Regenerative Biomedicine</p><p>Tikhoretsky Prospekt, 4, Saint Petersburg, 194064</p></bio><email xlink:type="simple">kate.gromova01@mail.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>Азаркина</surname><given-names>К. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Azarkina</surname><given-names>K. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Азаркина Ксения Евгеньевна, старший лаборант-исследователь лаборатории регенеративной биомедицины</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Ksenia E. Azarkina, Senior Research Laboratory Assistant at the Laboratory of Regenerative Biomedicine</p><p>Saint Petersburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Костина</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kostina</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Костина Дарья Алексеевна, научный сотрудник лаборатории регенеративной биомедицины</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Daria A. Kostina, Researcher at the Laboratory of Regenerative Biomedicine</p><p>Saint Petersburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Переплетчикова</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Perepletchikova</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Переплетчикова Дарья Александровна, младший научный сотрудник лаборатории регенеративной биомедицины</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Daria A. Perepletchikova, Junior Researcher at the Laboratory of Regenerative Biomedicine</p><p>Saint Petersburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Смирнова</surname><given-names>Д. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Smirnova</surname><given-names>D. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Смирнова Дарья Владимировна, младший научный сотрудник лаборатории регенеративной биомедицины</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Darya V. Smirnova, Junior Researcher at the Laboratory of Regenerative Biomedicine</p><p>Saint Petersburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0820-2913</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Малашичева</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Malashicheva</surname><given-names>A. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Малашичева Анна Борисовна, д.б.н., заведующая лабораторией регенеративной биомедицины</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Anna B. Malashicheva, Doctor of Biological Sciences, Head of the Laboratory of Regenerative Biomedicine</p><p>Saint Petersburg</p></bio><email xlink:type="simple">malashicheva@incras.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное учреждение науки «Институт цитологии Российской академии наук»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Cytology of the Russian Academy of Science</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>04</day><month>08</month><year>2024</year></pub-date><volume>11</volume><issue>3</issue><fpage>284</fpage><lpage>293</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Громова Е.С., Азаркина К.Е., Костина Д.А., Переплетчикова Д.А., Смирнова Д.С., Малашичева А.Б., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Громова Е.С., Азаркина К.Е., Костина Д.А., Переплетчикова Д.А., Смирнова Д.С., Малашичева А.Б.</copyright-holder><copyright-holder xml:lang="en">Gromova E.S., Azarkina K.E., Kostina D.A., Perepletchikova D.A., Smirnova D.S., Malashicheva A.B.</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://transmed.almazovcentre.ru/jour/article/view/940">https://transmed.almazovcentre.ru/jour/article/view/940</self-uri><abstract><sec><title>Актуальность</title><p>Актуальность. Несмотря на то, что Runx2 является общепризнанным маркером и регулятором остеогенной дифференцировки, механизмы его регуляции, динамика активации в ходе остеогенной дифференцировки и взаимосвязь с другими генами и генными путями, связанными с остеогенной дифференцировкой, остаются неясными.</p><p>Цель — проанализировать динамику активации Runx2 и влияние стабильного уровня белка на дифференцировочные процессы.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. В работе были использованы лентивирусные конструкции генетических изоформ RUNX2: RUNX2full (полноразмерный ген), RUNX2delta (укороченная последовательность), RUNX2stop (со стоп-кодоном), также была использована шпилечная конструкция на RUNX2 — shRUNX2 для подавления его активности. Для поддержания стабильного уровня белка в клетках использовали ингибитор протеасомной деградации MG132. Для анализа динамики активации Runx2 остеогенную дифференцировку индуцировали на разные временные сроки. Анализ результатов проводился методом вестерн-блоттинга, ПЦР в реальном времени, окрашиванием ализариновым красным.</p></sec><sec><title>Результаты</title><p>Результаты. Стабилизация белка Runx2 при 24 часах индукции остеогенной дифференцировки способствует ее усилению. Также уровень транскриптов Runx2 не изменяется, но происходит активация генов-мишеней.</p></sec><sec><title>Заключение</title><p>Заключение. В процессе инициации остеогенной дифференцировки гингивальных фибробластов in vitro Runx2 регулируется как на транскрипционном, так и на посттранскрипционном уровнях; накопление небольшого уровня транскриптов при индукции остеогенной дифференцировки и стабилизация белка Runx2, по-видимому, являются критически важными.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Background</title><p>Background. Despite the fact that Runx2 is a generally recognized marker and regulator of osteogenic differentiation, the mechanisms of its regulation, the dynamics of activation during osteogenic differentiation and the relationship with other genes and gene pathways associated with osteogenic differentiation remain unclear.</p><p>The aim is to analyze the dynamics of Runx2 activation and the effect of stable protein levels on differentiation processes.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. Lentiviral constructs of RUNX2 genetic isoforms were used in the work: RUNX2full (full-size gene), RUNX2delta (shortened sequence), RUNX2stop (with stop codon), a hairpin design on RUNX2 — shRUNX2 was also used to suppress its activity. The proteasome degradation inhibitor MG132 was used to maintain stable protein levels in cells. To analyze the dynamics of Runx2 activation, osteogenic differentiation was induced for different time periods. The results were analyzed by Western blotting, real-time PCR, and alizarin red staining.</p></sec><sec><title>Results</title><p>Results. Stabilization of the Runx2 protein at 24 hours of induction of osteogenic differentiation contributes to its strengthening. Also, the level of Runx2 transcripts does not change, but target genes are activated.</p></sec><sec><title>Conclusion</title><p>Conclusion. During the initiation of osteogenic differentiation of gingival ﬁbroblasts in vitro, Runx2 is regulated at both the transcriptional and post-transcriptional levels; accumulation of a small level of transcripts during induction of osteogenic differentiation and stabilization of the Runx2 protein seem to be critically important.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>динамика активации Runx2</kwd><kwd>остеогенная дифференцировка клеток.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>dynamics of Runx2 activation</kwd><kwd>osteogenic cell differentiation</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено при поддержке гранта РНФ № 23-15-00320.</funding-statement><funding-statement xml:lang="en">Research is supported by a grant from The Russian Science Foundation №23-15-00320.</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">Xu J, Li Z, Hou Y, Fang W. 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