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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">30202</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">Pcr definition of b-cell clonality: which electrophoretic method is better</article-title><trans-title-group xml:lang="ru"><trans-title>Определение В-клеточной клональности методом пцр: какой электрофоретический метод лучше?</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sidorova</surname><given-names>Iu V</given-names></name><name xml:lang="ru"><surname>Сидорова</surname><given-names>Ю В</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Nikitin</surname><given-names>E A</given-names></name><name xml:lang="ru"><surname>Никитин</surname><given-names>Е А</given-names></name></name-alternatives><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><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sudarikov</surname><given-names>A B</given-names></name><name xml:lang="ru"><surname>Судариков</surname><given-names>А Б</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">ГУ Гематологический научный центр РАМН, Москва</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2008-07-15" publication-format="electronic"><day>15</day><month>07</month><year>2008</year></pub-date><volume>80</volume><issue>7</issue><issue-title xml:lang="en">VOL 80, NO7 ()</issue-title><issue-title xml:lang="ru">ТОМ 80, №7 (2008)</issue-title><fpage>43</fpage><lpage>47</lpage><history><date date-type="received" iso-8601-date="2020-04-09"><day>09</day><month>04</month><year>2020</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2008, Consilium Medicum</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2008, ООО "Консилиум Медикум"</copyright-statement><copyright-year>2008</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/30202">https://ter-arkhiv.ru/0040-3660/article/view/30202</self-uri><abstract xml:lang="en"><p>Aim. To compare diagnostic efficacy of B-cell clonality determination in application of different electrophoretic methods. Material and methods. B-cell clonality was determined with different techniques in 89 patients having B-cell lymphoma (n = 48), B-cell lymphoma in remission (n = 11), reactive processes (n = 24), lymphogranulomatosis and T-cell lymphoma (n = 6). Healthy donors served control. Clonality was defined by rearrangements of Ig heavy chain genes with usage of primers to FR2 region of Ig gene. Electrophoretic methods were the following: agarose electrophoresis and SSCP. Results. Clonality was detected in the presence of more than 5.9% clonal cells from total count of mononuclear cells or more than 20% of clonal cells from total number of B-lymphocytes in the sample. We achieved detectability of B-clonality in B-cell tumors 87.5% (42 of 48 cases). False negative tests were also investigated with kits of primers to FR1 and FR3 regions, but clonality was not determined. Among reactive processes, non-B-cell tumors and healthy donors clonality was found in 1 of 41 cases. This patient had acute respiratory viral infection. Agarose electrophoresis and SSCP test results coincided. Conlusion. Determination of B-cell clonality with agarose electrophoresis proved to be a simple, reliable, cost-effective and reproducible method of differential diagnosis of tumor and reactive lymphoproliferation. This method is not suitable for verification of tumor remission or assessment of minimal residual disease because of its low sensitivity.</p></abstract><trans-abstract xml:lang="ru"><p>Цель исследования. Сравнить диагностическую эффективность определения В-клеточной клональности при использовании разных электрофоретических методов. Материалы и методы. Исследован материал 89 пациентов (48 - с В-клеточными лимфомами, 11 - с В-клеточными лимфомами в ремиссии, 24 - с реактивными процессами, 6 - с лимфогранулематозом и Т-клеточными лимфомами) и 10 здоровых доноров. Клональностъ определяли по реаранжировкам генов тяжелой цепи иммуноглобулина (Ig). Использовали оригинальный набор праймеров к FR2 области гена иммуноглобулина. В качестве электрофоретических методов использовали агарозный электрофорез и метод SSCP (анализ конформационного полиморфизма одноцепочечных фрагментов ДНК в полиакриламидном геле). Результаты. Клональность выявляется при наличии более 5,9% клональных клеток от общего количества мононуклеаров или более 20% клональных клеток от общего количества В-лимфоцитов в образце. В нашей работе выявляемость В-клональности при В-клеточных опухолях составила 87,5% (42 из 48 случаев). Ложноотрицательные пробы были дополнительно исследованы при помощи наборов праймеров к FR1- и FR3-областям, однако клональность не была выявлена. Среди реактивных процессов, не B-клеточных опухолей и здоровых доноров клональность была выявлена в 1 случае из 41, у пациента с острой респираторной вирусной инфекцией. Результаты агарозного электрофореза и SSCP-анализа полностью совпали. Заключение. Определение B-клеточной клональности с помощью агарозного электрофореза показало себя как простой, надежный, недорогой и воспроизводимый метод дифференциальной диагностики опухолевой и реактивной лимфопролиферации. Данный метод не подходит для подтверждения ремиссии опухоли или оценки минимальной остаточной болезни в связи с его низкой чувствительностью.</p></trans-abstract><kwd-group xml:lang="en"><kwd>B-cell clonality</kwd><kwd>rearrangements of heavy chain genes of immunoglobulins</kwd><kwd>molecular diagnosis</kwd><kwd>lymphom</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>клональность В-клеточная</kwd><kwd>перестройки генов тяжелых цепей иммуноглобулинов</kwd><kwd>молекулярная диагностика</kwd><kwd>лимфом</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Никитин Е. А., Ленива Е. А., Судариков А. Б. 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