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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">Terapevticheskii arkhiv</journal-id><journal-title-group><journal-title xml:lang="en">Terapevticheskii arkhiv</journal-title><trans-title-group xml:lang="ru"><trans-title>Терапевтический архив</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0040-3660</issn><issn publication-format="electronic">2309-5342</issn><publisher><publisher-name xml:lang="en">LLC Obyedinennaya Redaktsiya</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">31288</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Editorial article</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Передовая статья</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">Cytogenetic characteristics of hematopoietic and stromal progenitor cells in myelodysplastic syndrome</article-title><trans-title-group xml:lang="ru"><trans-title>Цитогенетическая характеристика гемопоэтических и стромальных клеток-предшественниц при миелодиспластическом синдроме</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Pimenova</surname><given-names>M A</given-names></name><name xml:lang="ru"><surname>Пименова</surname><given-names>М А</given-names></name></name-alternatives><email>maria_pimenova@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Parovichnikova</surname><given-names>E N</given-names></name><name xml:lang="ru"><surname>Паровичникова</surname><given-names>Е Н</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kokhno</surname><given-names>A V</given-names></name><name xml:lang="ru"><surname>Кохно</surname><given-names>А В</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Domracheva</surname><given-names>E V</given-names></name><name xml:lang="ru"><surname>Домрачева</surname><given-names>Е В</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Manakova</surname><given-names>T E</given-names></name><name xml:lang="ru"><surname>Манакова</surname><given-names>Т Е</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Mal'tseva</surname><given-names>Iu S</given-names></name><name xml:lang="ru"><surname>Мальцева</surname><given-names>Ю С</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Konnova</surname><given-names>M L</given-names></name><name xml:lang="ru"><surname>Коннова</surname><given-names>М Л</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shishigina</surname><given-names>L A</given-names></name><name xml:lang="ru"><surname>Шишигина</surname><given-names>Л А</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Savchenko</surname><given-names>V G</given-names></name><name xml:lang="ru"><surname>Савченко</surname><given-names>В Г</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en"></institution></aff><aff><institution xml:lang="ru">Гематологический научный центр Минздрава России, Москва</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2013-07-15" publication-format="electronic"><day>15</day><month>07</month><year>2013</year></pub-date><volume>85</volume><issue>7</issue><issue-title xml:lang="en">VOL 85, NO7 ()</issue-title><issue-title xml:lang="ru">ТОМ 85, №7 (2013)</issue-title><fpage>34</fpage><lpage>42</lpage><history><date date-type="received" iso-8601-date="2020-04-10"><day>10</day><month>04</month><year>2020</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2013, Consilium Medicum</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2013, ООО "Консилиум Медикум"</copyright-statement><copyright-year>2013</copyright-year><copyright-holder xml:lang="en">Consilium Medicum</copyright-holder><copyright-holder xml:lang="ru">ООО "Консилиум Медикум"</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-nc-sa/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://ter-arkhiv.ru/0040-3660/article/view/31288">https://ter-arkhiv.ru/0040-3660/article/view/31288</self-uri><abstract xml:lang="en"><p>AIM: To study and compare cytogenetic abnormalities in the bone marrow (BM) and peripheral blood (PB) CD34+ hematopoietic progenitor cells and in the BM mesenchymal stromal cells (MSCs) in patients with myelodysplastic syndrome (MDS)/MATERIAL AND METHODS: The results of a cytogenetic analysis of the total population of BM cells (BMC), CD34+ hematopoietic progenitor cells from BM and PB, and BM MSCs were analyzed in 35 patients (29 patients with MDS and 6 with MDS transformed into acute myeloid leukemia (AML)) and 7 healthy BM donors. Cytogenetic examinations were performed by G-banding of chromosomes and fluorescence in situ hybridization (FISH)/RESULTS: The BMC karyotype was abnormal in 17 (49%) of the 35 patients (13 with MDS and 4 with AML); the others were found to have a normal BM karyotype. The FISH analysis confirmed the same cytogenetic abnormalities in the BM and PB CD34+ hematopoietic progenitor cells in all the examinees with an abnormal karyotype. The mean abnormal clone sizes in the total population of BMCs and BM and PB CD34+ progenitor cells did not differ and constituted 65.8, 73.1, and 74.8%, respectively. The patients with a normal BM karyotype had no chromosome abnormalities in the CD34+ cells either. The karyotype of MSCs was analyzed in 23 (19 with MDS and 4 with AML) of the 35 patients. No karyotype abnormalities were revealed in the patients with MDS transformed into AML. There were structural chromosome aberrations in 2 (11%) of the 19 patients with MDS (one with constitutional inv(9)(p13q21) was found to have non-clonal translocation t(2;22)(p10;q11) and the other had a clone with an additional segment of the long arm of chromosome 2 in 35% of the cells. No numerical MSC karyotype abnormalities were detected. A normal MSC karyotype was defined in 7 healthy BM donors/CONCLUSION: The cytogenetic analysis of hematopoietic and mesenchymal progenitor cells showed that the chromosome abnormalities revealed in these cell populations were different in the patients with MDS. The isolated CD34+ cells displayed the same cytogenetic abnormalities as in a total population of BMC. Examination of the latter could reveal no cytogenetic abnormalities in the majority of the patients. A normal BMC karyotype was detectable in the patients with AML. Two (11%) patients with MDS were found to have structural chromosome abnormalities that differed from those detected in the total population of BMC and in isolated CD34+ cells. The differences of chromosome abnormalities in the hematopoietic and mesenchymal progenitor cells point to the fact that the stromal microenvironment is not part of the abnormal clone in MDS, however, it may be of great importance in the pathogenesis of the disease.</p></abstract><trans-abstract xml:lang="ru"><p>Резюме. Цель исследования. Изучить и сравнить цитогенетические аномалии в гемопоэтических клетках-предшественницах CD34+, выделенных из костного мозга (КМ), периферической крови и мезенхимальных стромальных клеток (МСК), у пациентов с миелодиспластическим синдромом (МДС). Материалы и методы. Представлены результаты цитогенетического анализа общей популяции клеток костного мозга (ККМ), гемопоэтических клеток-предшественниц CD34+ КМ, периферической крови и МСК КМ 35 больных (29 с МДС и 6 в стадии трансформации в острый миелоидный лейкоз - ОМЛ) и 7 здоровых доноров КМ. Цитогенетическое исследование выполнено методами G-дифференциального окрашивания хромосом (G-band) и флюоресцентной in situ гибридизации (FISH). Результаты. У 17 (49%) из 35 больных (с МДС 13 и с ОМЛ 4) в ККМ выявлены аномалии кариотипа, у остальных определен нормальный кариотип. У всех обследованных пациентов с аномалиями кариотипа с помощью FISH-исследования подтверждено наличие тех же цитогенетических аномалий в выделенных из КМ и периферической крови гемопоэтических клетках-предшественницах CD34+. Средние размеры патологического клона в общей популяции ККМ, ККМ CD34+ и клетках периферической крови CD34+ не различались и составили 65,8, 73,1 и 74,8% соответственно. У пациентов, в КМ которых определен нормальный кариотип, в клетках CD34+ также не выявлены хромосомные аномалии. Кариотип МСК проанализирован у 23 (с МДС - 19 и с ОМЛ - 4) из 35 больных. У пациентов с трансформацией в ОМЛ аномалии кариотипа не выявлены. У 2 (11%) из 19 пациентов с МДС определены структурные хромосомные аберрации - у одного с конституциональной инверсией inv(9)(p13q21) обнаружена неклональная транслокация t(2;22)(p10;q11), у другого - клон с добавочным сегментом длинного плеча 2-й хромосомы в 35% клеток. Численные аномалии кариотипа МСК не выявлены. У 7 здоровых доноров КМ определен нормальный кариотип МСК. Заключение. Цитогенетический анализ гемопоэтических и стромальных клеток-предшественниц показал, что хромосомные аномалии, выявленные в этих клеточных популяциях, у пациентов с МДС различны. В изолированных клетках CD34+ определены те же цитогенетические аномалии, что и в общей популяции ККМ. При исследовании МСК у большинства пациентов цитогенетические аномалии не обнаружены. У пациентов с ОМЛ определен нормальный кариотип МСК. У 2 (11%) пациентов с МДС обнаружены структурные хромосомные аномалии, которые отличались от выявленных в общей популяции ККМ и изолированных клетках CD34+. Различия хромосомных аномалий в кроветворных и мезенхимальных клетках-предшественницах указывают на то, что стромальное микроокружение не является частью патологического клона при МДС, однако, вероятно, имеет большое значение в патогенезе заболевания.</p></trans-abstract><kwd-group xml:lang="en"><kwd>myelodysplastic syndrome</kwd><kwd>hematopoietic progenitor cells</kwd><kwd>CD34+ cells</kwd><kwd>mesenchymal stromal cells</kwd><kwd>cytogenetic assay</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>миелодиспластический синдром</kwd><kwd>гемопоэтические клетки-предшественницы</kwd><kwd>клетки CD34+</kwd><kwd>мезенхимальные стромальные клетки</kwd><kwd>цитогенетический анализ</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Swerdlowet St.H. 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