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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">Kazan medical journal</journal-id><journal-title-group><journal-title xml:lang="en">Kazan medical journal</journal-title><trans-title-group xml:lang="ru"><trans-title>Казанский медицинский журнал</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0368-4814</issn><issn publication-format="electronic">2587-9359</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">105310</article-id><article-id pub-id-type="doi">10.17816/KMJ105310</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Theoretical and clinical medicine</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Теоретическая и клиническая медицина</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">Association of p53 protein expression with the presence of a 17p13 locus deletion of the TP53 gene and with the survival of patients with diffuse large B-cell lymphoma</article-title><trans-title-group xml:lang="ru"><trans-title>Связь экспрессии белка р53 с наличием делеции локуса 17р13 гена ТР53 и выживаемостью пациентов с диффузной В-крупноклеточной лимфомой</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5949-7865</contrib-id><contrib-id contrib-id-type="spin">8444-6740</contrib-id><name-alternatives><name xml:lang="en"><surname>Sarpova</surname><given-names>Mariia V.</given-names></name><name xml:lang="ru"><surname>Сарпова</surname><given-names>Мария Вадимовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Researcher, Laboratory of Pathomorphology</p></bio><bio xml:lang="ru"><p>научный сотрудник, лаборатория патоморфологии</p></bio><email>marisarpova@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1045-2011</contrib-id><contrib-id contrib-id-type="scopus">57222653084</contrib-id><contrib-id contrib-id-type="spin">9663-3399</contrib-id><name-alternatives><name xml:lang="en"><surname>Vaneeva</surname><given-names>Elena V.</given-names></name><name xml:lang="ru"><surname>Ванеева</surname><given-names>Елена Викторовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Researcher, Laboratory of Pathomorphology</p></bio><bio xml:lang="ru"><p>научный сотрудник, лаборатория патоморфологии</p></bio><email>vaneeva@niigpk.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8688-1344</contrib-id><contrib-id contrib-id-type="scopus">55920048300</contrib-id><contrib-id contrib-id-type="spin">6301-6557</contrib-id><name-alternatives><name xml:lang="en"><surname>Diakonov</surname><given-names>Dmitry A.</given-names></name><name xml:lang="ru"><surname>Дьяконов</surname><given-names>Дмитрий Андреевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>M.D., Cand. Sci. (Med.), Head, Laboratory of Pathomorphology</p></bio><bio xml:lang="ru"><p> канд. мед. наук, зав. лаб., лаборатория патоморфологии</p></bio><email>dyakonov@niigpk.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2054-2870</contrib-id><contrib-id contrib-id-type="scopus">55893734700</contrib-id><contrib-id contrib-id-type="spin">8058-3942</contrib-id><name-alternatives><name xml:lang="en"><surname>Rosin</surname><given-names>Vitaly A.</given-names></name><name xml:lang="ru"><surname>Росин</surname><given-names>Виталий Анатольевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>M.D., Cand. Sci. (Med.), Senior Researcher, Laboratory of Pathomorphology</p></bio><bio xml:lang="ru"><p>канд. мед. наук, ст. научн. сотр., лаборатория патоморфологии</p></bio><email>rosin@niigpk.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8639-719X</contrib-id><name-alternatives><name xml:lang="en"><surname>Samarina</surname><given-names>Svetlana V.</given-names></name><name xml:lang="ru"><surname>Самарина</surname><given-names>Светлана Валерьевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>M.D., Head, Clinical Diagnostic Depart.</p></bio><bio xml:lang="ru"><p>зав., клинико-диагностическое отделение</p></bio><email>samarina@niigpk.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Kirov Research Institute of Hematology and Blood Transfusion of the Federal Medical and Biological Agency</institution></aff><aff><institution xml:lang="ru">Кировский научно-исследовательский институт гематологии и переливания крови Федерального медико-биологического агентства</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Kirov Research Institute of Hematology and Blood Transfusion of the Federal Medical and Biological Agency</institution></aff><aff><institution xml:lang="ru">Кировский научно-исследовательский институт гематологии и переливания крови Федерального медико-биологического агентства,</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-02-01" publication-format="electronic"><day>01</day><month>02</month><year>2023</year></pub-date><volume>104</volume><issue>1</issue><issue-title xml:lang="ru"/><fpage>38</fpage><lpage>46</lpage><history><date date-type="received" iso-8601-date="2022-04-01"><day>01</day><month>04</month><year>2022</year></date><date date-type="accepted" iso-8601-date="2022-11-03"><day>03</day><month>11</month><year>2022</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Эко-Вектор</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Eco-Vector</copyright-holder><copyright-holder xml:lang="ru">Эко-Вектор</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2026-02-01"/></permissions><self-uri xlink:href="https://kazanmedjournal.ru/kazanmedj/article/view/105310">https://kazanmedjournal.ru/kazanmedj/article/view/105310</self-uri><abstract xml:lang="en"><p><bold>Background.</bold> A significant role in the pathogenesis, resistance to treatment and progression of many types of lymphomas, including diffuse large B-cell lymphoma, is assigned to the TP53 gene. Literature data on the prognostic significance of the expression of its product, the p53 protein, and its association with aberrations at the 17p13 locus are ambiguous.</p> <p><bold>Aim.</bold> To assess the relationship of p53 protein expression with the presence of a 17p13 locus deletion of the TP53 gene and the survival of patients with diffuse large B-cell lymphoma.</p> <p><bold>Material and methods.</bold> The study included 75 patients with newly diagnosed diffuse large B-cell lymphoma who received R-CHOP therapy. The calculation of the relative content of tumor cells expressing p53 was carried out using immunohistochemical and morphometric methods on biopsy samples of lymph nodes. The 17p13/TP53 deletion was determined by fluorescent in situ hybridization. The threshold level of p53-positive tumor cells, corresponding to 43%, was calculated by ROC analysis. The association between p53 protein expression and the presence of a 17p13 deletion was assessed using Fisher's (F) and Pearson's χ2 tests. The correlation dependence was evaluated by the Cramer method (V). Five-year overall and progression-free survival was calculated using the Kaplan–Meier method. Differences between the indicators were considered statistically significant at p &lt;0.05.</p> <p><bold>Results.</bold> The frequency of 17p13/TP53 deletion was higher in patients with high expression of p53 (≥43%) compared to the group of patients with low expression: 87.5 and 12.5%, respectively (p=0.018). A direct correlation between a high level of p53 expression (&gt;43%) and the presence of a 17p13/TP53 deletion was found (p=0.018). Five-year overall and progression-free survival in patients with a proportion of p53-positive cells&gt; 43% was significantly lower than in patients with its subthreshold value: 54.5 versus 81.0% (p=0.014) and 45.5 versus 66.7% (p=0.022), respectively.</p> <p><bold>Conclusion.</bold> High expression of the p53 protein is associated with the presence of a 17p13 locus deletion and a low five-year survival rate in patients with diffuse large B-cell lymphoma.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Актуальность.</bold> Значительная роль в патогенезе, устойчивости к лечению и прогрессировании многих типов лимфом, в том числе диффузной В-крупноклеточной лимфомы, отведена гену ТР53. Литературные данные о прогностическом значении экспрессии его продукта, белка р53, и ассоциации его с аберрациями в локусе 17р13 неоднозначны.</p> <p><bold>Цель.</bold> Оценить взаимосвязь экспрессии белка р53 с наличием делеции локуса 17р13 гена ТР53 и выживаемостью больных диффузной В-крупноклеточной лимфомой.</p> <p><bold>Материал и методы исследования.</bold> В исследование включены 75 пациентов с впервые установленной диффузной В-крупноклеточной лимфомой, получавших терапию по схеме R-CHOP. Подсчёт относительного содержания опухолевых клеток, экспрессирующих р53, осуществляли с применением иммуногистохимического и морфометрического методов на биопсийных образцах лимфатических узлов. Делецию 17р13/ТР53 определяли флюоресцентной in situ гибридизацией. Пороговый уровень р53-позитивных опухолевых клеток, соответствующий 43%, вычисляли методом ROC-анализа. Оценку ассоциации между экспрессией белка р53 и наличием делеции 17р13 проводили с применением критериев Фишера (F), χ2 Пирсона. Корреляционную зависимость оценивали методом Крамера (V). Пятилетнюю общую и беспрогрессивную выживаемость рассчитывали по методу Каплана–Мейера. Различия между показателями считали статистически значимыми при p &lt;0,05.</p> <p><bold>Результаты.</bold> Частота делеции 17р13/ТР53 была больше у пациентов с высокой экспрессией р53 (≥43%) по отношению к группе больных с низкой экспрессией: 87,5 и 12,5% соответственно (р=0,018). Между высоким уровнем экспрессии р53 (&gt;43%) и наличием делеции 17р13/ТР53 выявлена прямая корреляционная зависимость (р=0,018). Пятилетняя общая и беспрогрессивная выживаемость у пациентов с долей р53-позитивных клеток &gt;43% значимо ниже, чем у больных с её подпороговым значением: 54,5 против 81,0% (р=0,014) и 45,5 против 66,7% (р=0,022) соответственно.</p> <p><bold>Вывод.</bold> Высокая экспрессия белка р53 связана с наличием делеции локуса 17р13 и низкой пятилетней выживаемостью больных диффузной В-крупноклеточной лимфомой.</p></trans-abstract><kwd-group xml:lang="en"><kwd>TP53</kwd><kwd>p53</kwd><kwd>DLBCL</kwd><kwd>survival</kwd><kwd>IHC</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>ТР53</kwd><kwd>р53</kwd><kwd>ДВККЛ</kwd><kwd>выживаемость</kwd><kwd>ИГХ</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">ФГБУН «Кировский научно-исследовательский институт гематологии и переливания крови Федерального медико-биологического агентства»</institution></institution-wrap></funding-source></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Swerdlow SH, Campo E, Harris NL, Jaffe ES, Pileri SA, Stein H, Thiele J. 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