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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">Acta Naturae</journal-id><journal-title-group><journal-title xml:lang="en">Acta Naturae</journal-title><trans-title-group xml:lang="ru"><trans-title>Acta Naturae</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2075-8251</issn><publisher><publisher-name xml:lang="en">Acta Naturae Ltd</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">10501</article-id><article-id pub-id-type="doi">10.32607/20758251-2015-7-3-116-125</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Research Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Экспериментальные 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">Clonal Rearrangements and Malignant Clones in Peripheral T-cell Lymphoma</article-title><trans-title-group xml:lang="ru"><trans-title>Клональные реаранжировки и опухолевые клоны при периферической Т-клеточной лимфоме</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sidorova</surname><given-names>Yu. V.</given-names></name><name xml:lang="ru"><surname>Сидорова</surname><given-names>Ю. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>dusha@blood.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Chernova</surname><given-names>N. G.</given-names></name><name xml:lang="ru"><surname>Чернова</surname><given-names>Н. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>dusha@blood.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Ryzhikova</surname><given-names>N. V.</given-names></name><name xml:lang="ru"><surname>Рыжикова</surname><given-names>Н. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>dusha@blood.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Smirnova</surname><given-names>S. Yu.</given-names></name><name xml:lang="ru"><surname>Смирнова</surname><given-names>С. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>dusha@blood.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sinicina</surname><given-names>M. N.</given-names></name><name xml:lang="ru"><surname>Синицына</surname><given-names>M. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>dusha@blood.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Vinogradova</surname><given-names>Yu. E.</given-names></name><name xml:lang="ru"><surname>Виноградова</surname><given-names>Ю. E.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>dusha@blood.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Julhakyan</surname><given-names>H. L.</given-names></name><name xml:lang="ru"><surname>Джулакян</surname><given-names>У. Л.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>dusha@blood.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kovrigina</surname><given-names>A. M</given-names></name><name xml:lang="ru"><surname>Ковригина</surname><given-names>A. M.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>dusha@blood.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Zvonkov</surname><given-names>E. E.</given-names></name><name xml:lang="ru"><surname>Звонков</surname><given-names>E. E.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>dusha@blood.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sudarikov</surname><given-names>A. Б.</given-names></name><name xml:lang="ru"><surname>Судариков</surname><given-names>A. Б.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>dusha@blood.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">National Hematology Research Center of the Ministry of Health</institution></aff><aff><institution xml:lang="ru">Гематологический научный центр Министерства здравоохранения РФ</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">I.M. Sechenov Moscow State Medical University</institution></aff><aff><institution xml:lang="ru">Первый Московский государственный медицинский университет им И.М. Сеченова</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2015-09-15" publication-format="electronic"><day>15</day><month>09</month><year>2015</year></pub-date><volume>7</volume><issue>3</issue><issue-title xml:lang="en">VOL 7, NO3 (2015)</issue-title><issue-title xml:lang="ru">ТОМ 7, №3 (2015)</issue-title><fpage>116</fpage><lpage>125</lpage><history><date date-type="received" iso-8601-date="2020-01-17"><day>17</day><month>01</month><year>2020</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2015, Sidorova Y.V., Chernova N.G., Ryzhikova N.V., Smirnova S.Y., Sinicina M.N., Vinogradova Y.E., Julhakyan H.L., Kovrigina A.M., Zvonkov E.E., Sudarikov A.Б.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2015, Сидорова Ю.В., Чернова Н.Г., Рыжикова Н.В., Смирнова С.Ю., Синицына M.Н., Виноградова Ю.E., Джулакян У.Л., Ковригина A.M., Звонков E.E., Судариков A.Б.</copyright-statement><copyright-year>2015</copyright-year><copyright-holder xml:lang="en">Sidorova Y.V., Chernova N.G., Ryzhikova N.V., Smirnova S.Y., Sinicina M.N., Vinogradova Y.E., Julhakyan H.L., Kovrigina A.M., Zvonkov E.E., Sudarikov A.Б.</copyright-holder><copyright-holder xml:lang="ru">Сидорова Ю.В., Чернова Н.Г., Рыжикова Н.В., Смирнова С.Ю., Синицына M.Н., Виноградова Ю.E., Джулакян У.Л., Ковригина A.M., Звонков E.E., Судариков A.Б.</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://actanaturae.ru/2075-8251/article/view/10501">https://actanaturae.ru/2075-8251/article/view/10501</self-uri><abstract xml:lang="en"><p>Aim: To assess the feasibility and informative value of T-cell clonality testing in peripheral T-cell lymphoma (PTCL). Patients and methods: Biopsies of involved sites, blood, and bone marrow samples from 30 PTCL patients are included in the study. Rearranged TCRG and TCRB gene fragments were PCR-amplified according to the BIOMED-2 protocol and analyzed by capillary electrophoresis on ABI PRISM 3130 (Applied Biosystems). Results: TCRG and TCRB gene clonality assay was valuable in confirming diagnosis in 97% of PTCL patients. T-cell clonality assay performed on blood or bone marrow samples reaffirmed lymphoma in 93% of cases, whereas morphological methods were informative in 73% of cases only. We observed multiple TCRG and TCRB gene rearrangements, loss of certain clones in the course of the disease, as well as acquisition of new clones in 63% of PTCL cases, which can be attributed to the genetic instability of the tumor. Conclusion: TCRG and TCRB gene clonality assay is beneficial for the diagnosis of PTCL. However, the presence of multiple clonal rearrangements should be considered. Clonal evolution in PTCL, particularly acquisition of new clones, should not be treated as a second tumor. Multiple TCRG and TCRB gene rearrangements may interfere with minimal residual disease monitoring in PTCL.</p></abstract><trans-abstract xml:lang="ru"><p>Определяли целесообразность и информативность молекулярно-генетического исследования клональности при периферической Т-клеточной лимфоме (ПТКЛ). Анализировали биоптаты пораженных органов, кровь и костный мозг 30 пациентов с диагнозом периферическая Т-клеточная лимфома. Клональность Т-клеток оценивали по реаранжировкам генов TCRG и TCRB методом ПЦР с последующим секвенированием фрагментов. Исследование клональности по генам TCRG и TCRB позволяет доказать наличие опухоли у большинства (97%) пациентов с ПТКЛ. Методом ПЦР показано поражение костного мозга и/или лейкемизация у большинства (93%) пациентов, тогда как морфологически поражение костного мозга подтверждено только у 73% пациентов. Множественные реаранжировки генов Т-клеточных рецепторов γ и β, утрата и появление новых, присутствие нескольких опухолевых клонов обнаружено у 63% пациентов с ПТКЛ. Возможно, они связаны с генетической нестабильностью при ПТКЛ. Сделан вывод, что наличие множественных клональных реаранжировок TCRG и TCRB при ПТКЛ должно учитываться при использовании данного метода в диагностических целях. Клональная эволюция опухоли, появление новых клональных пиков (клонов) не свидетельствуют о появлении новой опухоли. Множественные реаранжировки генов TCRG и TCRB при ПТКЛ затрудняют оценку минимальной остаточной болезни.</p></trans-abstract><kwd-group xml:lang="en"><kwd>peripheral T-cell lymphoma</kwd><kwd>PCR</kwd><kwd>gene rearrangement of T cell receptor</kwd><kwd>T-lymphocytes clonality</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>периферическая Т-клеточная лимфома</kwd><kwd>ПЦР</kwd><kwd>реаранжировки генов Т-клеточных рецепторов</kwd><kwd>клональность T-лимфоцитов</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>[1] Swerdlow S.H., Campo E., Harris N.L., Jaffe E.S., Pileri S.A., Stein H., Thiele J., Vardiman J.W. // WHO Classification of Tumors of Hematopoietic and Lymphoid Tissues. // Lyon: IARC, 2008. 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