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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-114</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>КЛИНИЧЕСКАЯ МЕДИЦИНА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL MEDICINE</subject></subj-group></article-categories><title-group><article-title>Роль экспрессии СD95, СD56 и иммуногистохимического маркера СD138 в опухолевой прогрессии у пациентов с моноклональной гаммапатией неуточненного значения и солитарной плазмоцитомой у жителей гомельского региона Беларуси</article-title><trans-title-group xml:lang="en"><trans-title>The role of CD95, CD56 expression, immunohistochemical marker CD138 in tumor progression in patients with monoclonal gammopathy of undetermined significance and solitary plasmacytoma in residents of the Gomel region, Belarus</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>Козич</surname><given-names>Ж. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Kozich</surname><given-names>Z. M.</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>Мартинков</surname><given-names>В. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Martinkov</surname><given-names>V. N.</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>Пугачева</surname><given-names>Ж. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Pugacheva</surname><given-names>Z. N.</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>Жандаров</surname><given-names>М. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhandarov</surname><given-names>M. Y.</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>Смирнова</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Smirnova</surname><given-names>L. A.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>ГУ «РНПЦ радиационной медицины и экологии человека», г. Гомель, Беларусь</institution><country>Russian Federation</country></aff><aff xml:lang="ru" id="aff-2"><institution>УО «Белорусская медицинская академия последипломного образования», г. Минск, Беларусь</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>2</issue><fpage>96</fpage><lpage>101</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Козич Ж.М., Мартинков В.Н., Пугачева Ж.Н., Жандаров М.Ю., Смирнова Л.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Козич Ж.М., Мартинков В.Н., Пугачева Ж.Н., Жандаров М.Ю., Смирнова Л.А.</copyright-holder><copyright-holder xml:lang="en">Kozich Z.M., Martinkov V.N., Pugacheva Z.N., Zhandarov M.Y., Smirnova L.A.</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/114">https://medbio.ejournal.by/jour/article/view/114</self-uri><abstract><p>Множественная миелома - заболевание, характеризующееся медленным опухолевым ростом плазматических клеток в костном мозге с появлением моноклональных иммуноглобулинов в сыворотке крови и/или моче и остеолитическими поражениями костей. В своем развитии опухоль проходит стадию моноклональной гаммапатии неуточненного значения с риском прогрессирования 1% в год. У пациентов с солитарной плазмоцитомой с минимальным плазмоцитозом в костном мозге так же повышен риск прогрессирования до множественной миеломы по сравнению с пациентами без вовлечения костного мозга. В практике для постановки диагноза и дифференциальной диагностики множественной миеломы широко используют метод проточной цитометрии аспирата костного мозга и иммуногистохимическое исследование костного мозга. Экспрессия таких сывороточных маркеров как CD95 и CD56, а также иммуногистохимического маркера CD138 может играть прогностическую роль в прогрессии этих заболеваний. В нашей работе представлены результаты изучения экспрессии данных маркеров у пациентов с моноклональной гаммапатией неуточненного значения и солитарной плазмоцитомой с учетом наличия прогрессии в течение трех лет наблюдения.</p></abstract><trans-abstract xml:lang="en"><p>Multiple myeloma (MM) is a disease characterized by slow tumor growth of plasma cells in the bone marrow with the production of monoclonal immunoglobulins in serum and / or urine and osteolytic bone lesions, in its development passes the stage of monoclonal gammopathy of undetermined significance with 1% risk of progression per year. Patients with solitary plasmacytoma with minimal plasmacytosis in the bone marrow also have an increased risk of progression to MM.In practice, for diagnosis, differential diagnosis, the method of flow cytometry of bone marrow aspirate and immunohistochemical examination of bone marrow are widely used, which can identify unfavorable markers of progression in MGNZ and SP.Expression of markers such as CD95 and CD56, as well as the immunohistochemical marker CD138, may play a prognostic role in the progression of these diseases.In our study, we provided the results of studying the expression of immunophenotypic markers CD95 and CD56, as well as the immunohistochemical marker CD138 on tumor plasma cells, detected during the progression of MGUS and SP.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>CD56</kwd><kwd>CD95</kwd><kwd>CD138</kwd><kwd>проточная цитометрия</kwd><kwd>моноклональная гаммапатия неуточненного значения</kwd><kwd>солитарная плазмоцитома</kwd></kwd-group><kwd-group xml:lang="en"><kwd>CD56</kwd><kwd>CD95</kwd><kwd>CD138</kwd><kwd>flow cytometry</kwd><kwd>monoclonal gammopathy of undetermined significance (MGUS)</kwd><kwd>solitary plasmacytoma (SP)</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">Rajkumar, S.V. 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