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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">Pediatric Hematology/Oncology and Immunopathology</journal-id><journal-title-group><journal-title xml:lang="en">Pediatric Hematology/Oncology and Immunopathology</journal-title><trans-title-group xml:lang="ru"><trans-title>Вопросы гематологии/онкологии и иммунопатологии в педиатрии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1726-1708</issn><issn publication-format="electronic">2414-9314</issn><publisher><publisher-name xml:lang="en">Fund Doctors, Innovations, Science for Children</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">1018</article-id><article-id pub-id-type="doi">10.24287/1726-1708-2025-24-2-96-103</article-id><article-id pub-id-type="edn">OXXNJI</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</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">Morphology of a pure hematogone population isolated from normal and hematogone-rich bone marrow</article-title><trans-title-group xml:lang="ru"><trans-title>Морфология чистой популяции гематогонов, изолированной из нормального и обогащенного гематогонами костного мозга</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9475-3318</contrib-id><name-alternatives><name xml:lang="en"><surname>Zakirova</surname><given-names>Anna O.</given-names></name><name xml:lang="ru"><surname>Закирова</surname><given-names>Анна Олеговна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>no-reply@eco-vector.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>Kormilitsina</surname><given-names>Maria V.</given-names></name><name xml:lang="ru"><surname>Кормилицина</surname><given-names>Мария В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>no-reply@eco-vector.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7131-8006</contrib-id><name-alternatives><name xml:lang="en"><surname>Fedyanina</surname><given-names>Olga S.</given-names></name><name xml:lang="ru"><surname>Федянина</surname><given-names>Ольга Сергеевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>no-reply@eco-vector.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7117-0168</contrib-id><name-alternatives><name xml:lang="en"><surname>Khvastunova</surname><given-names>Anna N.</given-names></name><name xml:lang="ru"><surname>Хвастунова</surname><given-names>Анна Николаевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>alina_shunina@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6460-9427</contrib-id><name-alternatives><name xml:lang="en"><surname>Filatov</surname><given-names>Alexander V.</given-names></name><name xml:lang="ru"><surname>Филатов</surname><given-names>Александр Васильевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>no-reply@eco-vector.ru</email><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5946-0026</contrib-id><name-alternatives><name xml:lang="en"><surname>Kuznetsova</surname><given-names>Sophia A.</given-names></name><name xml:lang="ru"><surname>Кузнецова</surname><given-names>Софья Алексеевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>kuznetsova.sonya@gmail.com</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр детской гематологии, онкологии и иммунологии им. Дмитрия Рогачева» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Center for Theoretical Problems of Physical and Chemical Pharmacology, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">ФГБУН «Центр теоретических проблем физико-химической фармакологии» РАН</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Moscow Institute of Physics and Technology (National Research University)</institution></aff><aff><institution xml:lang="ru">ФГАОУ ВО «Московский физико-технический институт (национальный исследовательский университет)»</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">National Research Center “Institute of Immunology” of the Federal Medical Biological Agency of the Russian Federation</institution></aff><aff><institution xml:lang="ru">Государственный научный центр «Институт иммунологии» Федерального медико-биологического агентства, Москва</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2025-09-08" publication-format="electronic"><day>08</day><month>09</month><year>2025</year></pub-date><pub-date date-type="pub" iso-8601-date="2025-06-30" publication-format="electronic"><day>30</day><month>06</month><year>2025</year></pub-date><volume>24</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>96</fpage><lpage>103</lpage><history><date date-type="received" iso-8601-date="2025-09-08"><day>08</day><month>09</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-09-08"><day>08</day><month>09</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, «D. Rogachev NMRCPHOI»</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, ФГБУ «НМИЦ ДГОИ им. Дмитрия Рогачева» Минздрава России</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">«D. Rogachev NMRCPHOI»</copyright-holder><copyright-holder xml:lang="ru">ФГБУ «НМИЦ ДГОИ им. Дмитрия Рогачева» Минздрава России</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/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://hemoncim.com/jour/article/view/1018">https://hemoncim.com/jour/article/view/1018</self-uri><abstract xml:lang="en"><p>B-ceLL precursors (hematogones) account for Less than 5% of normaL bone marrow (BM) nucLeated ceUs but in some cLinicaL conditions the number of hematogones can be transientLy increased. Their morphoLogy has been characterized in patients with increased numbers of hematogones. However, the scarcity of hematogones and inabiLity to obtain their pure popuLation make it difficuLt to thoroughLy investigate the morphoLogy of these ceLLs in normaL BM. A pure popuLation of hematogones was isoLated as a fraction of CD10<sup>+</sup> BM mononucLear ceLLs from 14 patients with increased numbers of hematogones and 12 heaLthy donors using microarrays with immobiLized antibodies to duster of differentiation (CD) antigens. We described the main morphoLogicaL subtypes of hematogones of normaL BM and anaLyzed the proportion of these ceUs among CD19+, CD22+, CD20+, and CD10+CD34+ BM mononucLear ceUs. One to nine percent of hematogones are 13-17 mm in diameter and have basophiLic cytopLasm, Lacy or fineLy reticuLated, bLastic chromatin and prominent nucLeoLi. The remaining hematogones are immature Lymphoid ceLLs that vary considerabLy in size (7-15 mm in diameter) and have scanty cytopLasm, smudged chromatin and absent nucLeoLi. Three to twenty-five percent of these ceLLs are Larger than 10 mm. CD10+CD34+ ceLLs do not show predominancy bLastic morphoLogy, however some bLast-Like hematogones express CD20. Hematogones in normaL BM are heterogeneous in morphoLogy and size. We found no apparent correLation between the morphoLogy of hematogones and their stages of maturation. The study was approved by the Independent Ethics Committee and the Scientific CounciL of the Dmitry Rogachev NationaL MedicaL Research Center of Pediatric HematoLogy, OncoLogy and ImmunoLogy of Ministry of HeaLthcare of the Russian Federation. ALL donors and patients gave their informed consent to BM aspiration and participation in future biomedicaL studies.</p></abstract><trans-abstract xml:lang="ru"><p>В-клеточные предшественники (гематогоны) составляют менее 5% нормальных ядросодержащих клеток костного мозга (КМ), но при некоторых клинических состояниях их процентное содержание может увеличиваться. Морфология гематогонов была охарактеризована у пациентов с их повышенным количеством. Однако малочисленность гематогонов и невозможность получения их чистой популяции затрудняют детальный морфологический анализ этих клеток в нормальном КМ. У 14 пациентов с повышенным содержанием гематогонов и 12 здоровых доноров с помощью биочипов с иммобилизованными антителами к антигенам кластеров дифференцировки (CD) была выделена чистая популяция гематогонов как CD10<sup>+</sup>-фракция мононуклеарных клеток КМ. Были описаны основные морфологические подтипы гематогонов здорового КМ и проанализирована доля этих клеток среди CD19+-, CD22+-, CD20+- и CD10<sup>+</sup>CD34<sup>+</sup>-мононуклеаров КМ. От 1 до 9% гематогонов имеют диаметр 13-17 мкм, базофильную цитоплазму, кружевную или мелкосетчатую бластную структуру хроматина и ярко выраженные ядрышки. Остальные гематогоны представляют собой незрелые лимфоидные клетки с широким распределением по размерам (7-15 мкм в диаметре), скудной цитоплазмой, «смазанным» хроматином и отсутствием ядрышек. От 3 до 25% клеток в последней категории имеют размер более 10 мкм. Клетки CD10+CD34+ не имеют преимущественно бластной морфологии, в то время как некоторые бластоподобные гематогоны экспрессируют CD20. Гематогоны в нормальном КМ неоднородны по морфологии и размеру. Явной корреляции между морфологией гематогонов и их иммунологической стадией созревания обнаружено не было. Исследование одобрено независимым этическим комитетом и утверждено решением ученого совета ФГБУ «НМИЦ ДГОИ им. Дмитрия Рогачева» Минздрава России. Было получено согласие доноров и пациентов на забор КМ и будущие биомедицинские исследования.</p></trans-abstract><kwd-group xml:lang="en"><kwd>hematogone</kwd><kwd>normal B-cell precursors</kwd><kwd>microarray</kwd><kwd>CD antigens</kwd><kwd>morphology</kwd><kwd>immunocytochemistry</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>гематогоны</kwd><kwd>нормальные В-клеточные предшественники</kwd><kwd>клеточный биочип</kwd><kwd>CD-антигены</kwd><kwd>морфология</kwd><kwd>иммуноцитохимия</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Российский научный фонд</institution></institution-wrap><institution-wrap><institution xml:lang="en">Russian Science Foundation</institution></institution-wrap></funding-source><award-id>23-45-10039</award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Vogel P., Erf L.A., Rosenthal N. 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