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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">medbio</journal-id><journal-title-group><journal-title xml:lang="ru">Медико-биологические проблемы жизнедеятельности</journal-title><trans-title-group xml:lang="en"><trans-title>Medical and Biological Problems of Life Activity</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2074-2088</issn><publisher><publisher-name>Республиканский научно-практический центр радиационной медицины и экологии человека</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">medbio-276</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>МЕДИКО-БИОЛОГИЧЕСКИЕ ПРОБЛЕМЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MEDICAL-BIOLOGICAL PROBLEMS</subject></subj-group></article-categories><title-group><article-title>Закономерности развития гранулоцитарно-моноцитарного и мегакариоцитарного ростков миелопоэза CD34+ клеток пуповинной и периферической крови</article-title><trans-title-group xml:lang="en"><trans-title>Developmental patterns of granulocyte-monocyte and megakaryocyte lineages from cord and peripheral blood СD34+ cells</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>Костюнина</surname><given-names>В. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kostyunina</surname><given-names>V. S.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Васина</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Vasina</surname><given-names>E. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Гончарова</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Goncharova</surname><given-names>N. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Петёвка</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Petyovka</surname><given-names>N. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>ГУ «РНПЦ трансфузиологии и медицинских биотехнологий»</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>02</day><month>03</month><year>2023</year></pub-date><volume>0</volume><issue>1</issue><fpage>86</fpage><lpage>93</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Костюнина В.С., Васина Е.В., Гончарова Н.В., Петёвка Н.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Костюнина В.С., Васина Е.В., Гончарова Н.В., Петёвка Н.В.</copyright-holder><copyright-holder xml:lang="en">Kostyunina V.S., Vasina E.V., Goncharova N.V., Petyovka N.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://medbio.ejournal.by/jour/article/view/276">https://medbio.ejournal.by/jour/article/view/276</self-uri><abstract><p>Проведена 6-суточная экспансия CD34+ клеток пуповинной крови и мобилизированных Г-КСФ CD34+ клеток периферической крови (ПК) на подложке мезенхимных стромальных клеток костного мозга в присутствии ростовых факторов SCF, Flt3-лиганда и тромбопоэтина. Прирост ядросодержащих клеток (ЯСК) и CD34+ клеток пуповинной крови был выше: 33 (23-42) раза и 13 (11-16) раз соответственно против 15 (7-18) и 9 (7- 11) раз в периферической крови, различия статистически значимы. Прирост КОЕ-Э и БОЕ-Э, КОЕ-Г и КОЕ-ГЭММ после экспансии соответствовал приросту ЯСК. Отличительной особенностью экспансии пуповинной крови в сравнении с ПК является преимущественный прирост КОЕ-М и КОЕ-ГМ (130 (37-175) против 28 (4-62) раз, р=0,003 и 44 (11-218) против 10 (2-37), р=0,025). При этом прирост КОЕ-Мк пуповинной крови был ниже ожидаемого и не отличался от ПК (19 (9-20) против 20 (5-49) раз, p=0,7), что согласуется с данными о неэффективной коррекции тромбоцитопении после трансплантации пуповинной крови, подвергнутой экспансии ex vivo. Мегакариоцитарные предшественники пуповинной и периферической крови после экспансии отличались по экспрессии CD34: 2% (0,6-8,1) и 11% (6-23) соответственно. Пролиферативный ответ стволовых и прогениторных CD34+ клеток пуповинной и периферической крови на внешние стимулы in vitro обусловлен онтогенетическими различиями регуляции миелопоэза новорожденного и взрослого человека. Несмотря на одинаковые культуральные условия, только в культуре пуповинной крови наблюдается перераспределение долей КОЕ: значительный прирост моноцит-содержащих колоний (КОЕ-М и КОЕ-ГМ) и угнетение мегакариоцитарного ростка.</p></abstract><trans-abstract xml:lang="en"><p>The 6-days expansion of cord blood (CB) and mobilized peripheral blood (PB) CD34+ cells in co-culture with BM MSCs with addition of SCF, Flt3 ligand and TPO was performed. Fold expansion of CB cells was higher: 33 (23-42) for CB nucleated cells (TNC) vs 13 (11- 16) for PB TNC (p=0,004) and 15 (7-18) for CB CD34+ cells vs. 9 (7-11) for PB CD34+ cells (p=0,013). The mean fold expansion of CFU-E, BFU-E, CFU-G, CFU-GEMM cord blood was comparable to TNC fold increase. The high production of CFU-M and CFU-GM after the CB expansion is a distinctive difference of CB myelopoiesis, in contrast to PB cells (130 (37- 175) vs. 28 (4-62), p = 0,003; 44 (11-218) vs. 10 (2-37), p = 0,025). CB CFU-Mk fold expansion was lower than expected and was the same as PB CFU-Mk (19 (9-20) vs. 20 (5-49), p = 0,7). These data is consistent with ineffective counteraction of chemotherapy-induced thrombocytopenia by transplantation of expanded CB. Different CD34 expression on CB and PB megakaryocyte progenitors was observed. Ontogenically related myelopoiesis of CB and PB cells leads to different proliferative responses to cultural stimuli. Despite the same cultural conditions, only in the CB culture there was a redistribution of CFU proportions: a significant increase of monocyte-containing colonies (CFU-M and CFU-GM) and inhibition of the megakaryocytic lineage.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>CD34+ клетки</kwd><kwd>экспансия in vitro</kwd><kwd>пуповинная кровь</kwd><kwd>КОЕ-ГМ</kwd><kwd>КОЕ-Мк</kwd></kwd-group><kwd-group xml:lang="en"><kwd>CD34+ cells</kwd><kwd>expansion in vitro</kwd><kwd>cord blood</kwd><kwd>CFU-GM</kwd><kwd>CFU-Mk</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Comparative outcomes between cord blood transplantation and bone marrow or peripheral blood stem cell transplantation from unrelated donors in patients with hematologic malignancies: a single-institute analysis / Y. 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