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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">mimmun</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинская иммунология</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Immunology (Russia)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1563-0625</issn><issn pub-type="epub">2313-741X</issn><publisher><publisher-name>SPb RAACI</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.15789/1563-0625-2005-4-381-384</article-id><article-id custom-type="elpub" pub-id-type="custom">mimmun-488</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>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>КЛИНИЧЕСКОЕ ЗНАЧЕНИЕ ИССЛЕДОВАНИЯ ЭКСПРЕССИИ ГЕНА BCL–2 ДЛЯ ПРОГНОЗА И МОНИТОРИНГА ОСТРОЙ ФОРМЫ РЕАКЦИИ «ТРАНСПЛАНТАТ–ПРОТИВ–ХОЗЯИНА» ПРИ АЛЛОГЕННЫХ ТСГК</article-title><trans-title-group xml:lang="en"><trans-title>CLINICAL SIGNIFICANCE OF BCL–2 GENE EXPRESSION FOR THE PROGNOSIS AND MONITORING OF ACUTE GRAFT–VERSUS–HOST–DISEASE (AGVHD) IN ALLO–HSCT</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>Зарайский</surname><given-names>М. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Zaraiski</surname><given-names>M. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>197089, Санкт–Петербург, ул. Льва Толстого, д.6/8</p></bio><email xlink:type="simple">mzaraiski@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>Санкт–Петербургский Государственный медицинский университет им. акад И.П. Павлова</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2005</year></pub-date><pub-date pub-type="epub"><day>22</day><month>07</month><year>2014</year></pub-date><volume>7</volume><issue>4</issue><fpage>381</fpage><lpage>384</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Зарайский М.И., 2014</copyright-statement><copyright-year>2014</copyright-year><copyright-holder xml:lang="ru">Зарайский М.И.</copyright-holder><copyright-holder xml:lang="en">Zaraiski M.I.</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://www.mimmun.ru/mimmun/article/view/488">https://www.mimmun.ru/mimmun/article/view/488</self-uri><abstract><p>Резюме. Целью работы явилось изучение экспрессии гена bcl–2 у пациентов с аллогенной неродственной трансплантацией стволовых гемопоэтических клеток (аНТСГК) для оценки динамики острой формы реакции «трансплантат–против–хозяина» (оРТПХ).</p><p>Объектом исследования служила тотальная РНК 19 пациентов с онкогематологическими заболеваниями, выделенная до аНТСГК (Д–Т), на день восстановления лейкоцитов после кондиционирования (Д–В) и на Д+30. Оценка экспрессии проводилась по оригинальному полуколичественному ОТ–ПЦР протоколу, предусматривающему сравнительный анализ электрофоретических сигналов при коамплификации исследуемого и референц–гена (бета–актин). Было показано, что в точках Д–Т и Д–В уровень экспрессии гена bcl–2 у пациентов, у которых оРТПХ развилась в пост–НТСГК периоде, был примерно в 2 раза выше, чем в группе без оРТПХ (Р=0,011 и Р=0,012, соответственно). Далее, в точках Д–В и Д+30 пациенты были разделены на две группы: I – пациенты, у которых на данных этапах определялись клинические проявления оРТПХ, и II – пациенты, у которых к данному сроку оРТПХ не развилась. В точке Д–В у пациентов I группы экспрессия гена bcl–2 была значительно выше, чем в группе II (Р=0,05). Напротив, в точке Д+30 у пациентов с оРТПХ данный параметр был почти в два раза ниже по сравнению с пациентами группы II (Р=0,016). Таким образом, мониторинг экспрессии гена bcl–2 позволяет достоверно прогнозировать развитие оРТПХ и корректировать стратегию иммуносупрессивной терапии, особенно на ранних этапах после аНТСГК.</p></abstract><trans-abstract xml:lang="en"><p>Abstract. Our general purpose was to investigate bcl–2 gene expression in patients treated by allogeneic unrelated haematopoietic stem cells transplantation (aUHSCT) for the evaluation of aGvHD. Total RNA from the leukocytes of 19 oncohaematological patients was collected before starting the conditioning regimen (D–T), at the day of hematological recovery (D–R) and at the D+30. An original RT–PCR protocol was developed, by quantifying the signals from the target genes, as compared to beta–actin as a reference gene. We have shown that the levels of bcl–2 expression in aGVHD patients were higher, as compared to aGVHD–free patients at D–T (Р=0,011), like as D–R (Р=0,012) time–points. The patients at the D–R and D+30 were divided into two groups, either with or without clinical signs of aGvHD at these observation terms (resp., groups I and II). At D–R point, bcl–2 expression in the 1st group was two–fold higher, than in the patients of second group (P=0,05). By the contrary, bcl–2 expression by the D+30 in group I was two–fold lower, as compared to the patients of second group (Р=0,016). Thus, we suggest the monitoring of bcl–2 expression to be of certain clinical significance. This criterion could be used as additional approach to prediction of aGVHD development and adjustment of immunosuppressive therapy. We also suppose that the role of the bcl–2 in the pathogenesis of aGvHD should be analyzed in more details. (Med. Immunol., 2005, vol.7, № 4, pp. 381–384)</p></trans-abstract><kwd-group xml:lang="ru"><kwd>трансплантация</kwd><kwd>ген bcl–2</kwd><kwd>острая РТПХ</kwd></kwd-group><kwd-group xml:lang="en"><kwd>transplantation</kwd><kwd>bcl–2 gene</kwd><kwd>acute graft-versus-host-disease</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">Couriel D, Caldera H, Champlin R, Komanduri K. Acute graft–versus–host disease: pathophysiology, clinical manifestations, and management // Cancer.2004. — Nov. 1; 101(9). — P.1936–1946.</mixed-citation><mixed-citation xml:lang="en">Couriel D, Caldera H, Champlin R, Komanduri K. 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