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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">cancersp</journal-id><journal-title-group><journal-title xml:lang="ru">Южно-Российский онкологический журнал/ South Russian Journal of Cancer</journal-title><trans-title-group xml:lang="en"><trans-title>South Russian Journal of Cancer</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2686-9039</issn><publisher><publisher-name>АНО "Перспективы онкологии"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.37748/2686-9039-2025-6-1-1</article-id><article-id custom-type="edn" pub-id-type="custom">dkfrou</article-id><article-id custom-type="elpub" pub-id-type="custom">cancersp-295</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>Особенности диагностики скрытой формы гепатита В у онкологических больных</article-title><trans-title-group xml:lang="en"><trans-title>Features of occult hepatitis B diagnostics in cancer patients</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4232-6733</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шевякова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Shevyakova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шевякова Елена Андреевна – биолог лаборатории вирусологии, ФГБУ «Национальный медицинский исследовательский центр онкологии» Министерства здравоохранения Российской Федерации, г. Ростов-на-Дону, Российская Федерация</p><p>ORCID: <ext-link xlink:href="https://orcid.org/0000-0002-4232-6733" ext-link-type="uri">https://orcid.org/0000-0002-4232-6733</ext-link>, SPIN: 9595-7616, AuthorID: 920220, ResearcherID: U-3551-2019, Scopus Author ID: 57201476270</p></bio><bio xml:lang="en"><p>Elena A. Shevyakova – biologist at the virology laboratory, National Medical Research Centre for Oncology, Rostov-on-Don, Russian Federation</p><p>ORCID: <ext-link xlink:href="https://orcid.org/0000-0002-4232-6733" ext-link-type="uri">https://orcid.org/0000-0002-4232-6733</ext-link>, SPIN: 9595-7616, AuthorID: 920220, ResearcherID: U-3551-2019, Scopus Author ID: 57201476270</p></bio><email xlink:type="simple">eash.2016@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5345-4872</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зыкова</surname><given-names>Т. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Zykova</surname><given-names>T. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Зыкова Татьяна Алексеевна – к.м.н., заведующая лабораторией вирусологии, ФГБУ «Национальный медицинский исследовательский центр онкологии» Министерства здравоохранения Российской Федерации, г. Ростов-на-Дону, Российская Федерация</p><p>ORCID: <ext-link xlink:href="https://orcid.org/0000-0001-5345-4872" ext-link-type="uri">https://orcid.org/0000-0001-5345-4872</ext-link>, SPIN: 7054-0803, AuthorID: 735751, ResearcherID: U-3559-2019, Scopus Author ID: 57200075494</p></bio><bio xml:lang="en"><p>Tatiana A. Zykova – Cand. Sci. (Med.), chief of virology department, National Medical Research Centre for Oncology, Rostov-on-Don, Russian Federation</p><p>ORCID: <ext-link xlink:href="https://orcid.org/0000-0001-5345-4872" ext-link-type="uri">https://orcid.org/0000-0001-5345-4872</ext-link>, SPIN: 7054-0803, AuthorID: 735751, ResearcherID: U-3559-2019, Scopus Author ID: 57200075494</p></bio><email xlink:type="simple">tatiana2904@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7499-7040</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Великородная</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Velikorodnaya</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Великородная Лилия Андреевна – биолог лаборатории вирусологии, ФГБУ «Национальный медицинский исследовательский центр онкологии» Министерства здравоохранения Российской Федерации, г. Ростов-на-Дону, Российская Федерация</p><p>ORCID: <ext-link xlink:href="https://orcid.org/0000-0001-7499-7040" ext-link-type="uri">https://orcid.org/0000-0001-7499-7040</ext-link>, SPIN: 2651-7086, AuthorID: 936355</p></bio><bio xml:lang="en"><p>Liliya A. Velikorodnaya – biologist at the virology laboratory, National Medical Research Centre for Oncology, Rostov-on-Don, Russian Federation</p><p>ORCID: <ext-link xlink:href="https://orcid.org/0000-0001-7499-7040" ext-link-type="uri">https://orcid.org/0000-0001-7499-7040</ext-link>, SPIN: 2651-7086, AuthorID: 936355 </p></bio><email xlink:type="simple">lawelik@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6881-2281</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шапошников</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shaposhnikov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шапошников Александр Васильевич – д.м.н., профессор, главный научный сотрудник торакоабдоминального отдела, ФГБУ «Национальный медицинский исследовательский центр онкологии» Министерства здравоохранения Российской Федерации, г. Ростов-на-Дону, Российская Федерация</p><p>ORCID: <ext-link xlink:href="https://orcid.org/0000-0001-6881-2281" ext-link-type="uri">https://orcid.org/0000-0001-6881-2281</ext-link>, SPIN: 8756-9438, AuthorID: 712823</p></bio><bio xml:lang="en"><p>Alexander V. Shaposhnikov – Dr. Sci. (Med.), professor, chief researcher at the thoracoabdominal department, National Medical Research Centre for Oncology, Rostov-on-Don, Russian Federation</p><p>ORCID: <ext-link xlink:href="https://orcid.org/0000-0001-6881-2281" ext-link-type="uri">https://orcid.org/0000-0001-6881-2281</ext-link>, SPIN: 8756-9438, AuthorID: 712823</p></bio><email xlink:type="simple">alexshap@donpac.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «Национальный медицинский исследовательский центр онкологии» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Medical Research Centre for Oncology</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>19</day><month>01</month><year>2025</year></pub-date><volume>6</volume><issue>1</issue><fpage>6</fpage><lpage>14</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Шевякова Е.А., Зыкова Т.А., Великородная Л.А., Шапошников А.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Шевякова Е.А., Зыкова Т.А., Великородная Л.А., Шапошников А.В.</copyright-holder><copyright-holder xml:lang="en">Shevyakova E.A., Zykova T.A., Velikorodnaya L.A., Shaposhnikov A.V.</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.cancersp.com/jour/article/view/295">https://www.cancersp.com/jour/article/view/295</self-uri><abstract><sec><title>Цель исследования</title><p>Цель исследования. Анализ частоты выявления серологических и молекулярно-биологических маркеров HBsAg-негативного гепатита В среди онкологических больных.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Исследовали сыворотки крови больных, госпитализированных в ФГБУ «Национальный медицинский исследовательский центр онкологии» Министерства здравоохранения Российской Федерации с 2016 по 2023 гг. Исследовано 41523 образца на HBsAg, 2035 – на суммарные анти-HBcore, из них 958 – одновременно на HBsAg и анти-HBcore методами иммуноферментного (ИФА) или иммунохемилюминесцентного анализа (ИХЛА), 1380 образцов – на наличие ДНК вируса гепатита В (ВГВ) в плазме крови методом полимеразной цепной реакции в режиме реального времени (ПЦР-РВ).</p></sec><sec><title>Результаты</title><p>Результаты. Распространенность HBsAg среди онкологических больных составила 2,5 % (1051/41523), анти-HBcore – 23,7 % (483/2035). Одновременное обследование на HBsAg и анти-HBcore позволило выявить различные сочетания маркеров. Среди вариантов, положительных хотя бы по одному маркеру, самым распространенным оказался HBsAg-негативный, но анти-HBcore-позитивный. Количество таких больных в среднем составило 20,6 % (197/958). Одновременное присутствие обоих маркеров было отмечено в среднем у 4,6 % больных (44/958). Не было выявлено ни одного случая изолированного выявления HBsAg. Всего число лиц, инфицированных ВГВ, составило 25,2 % (241/958). Из них HBsAg-негативными оказались 81,7 % (197/241).</p><p>Было выявлено 219 образцов с наличием ДНК ВГВ в плазме крови. Из них 19 были обследованы одновременно на наличие HBsAg, анти-HBcore. У большинства (78,9 %) присутствовали все три маркера. HBsAg-негативными, но ДНК-позитивными были 21,1 % (скрытая форма инфекции), из них 15,8 % – анти-HBcore-позитивными, а 5,3 % не имели ни одного серологического маркера.</p></sec><sec><title>Заключение</title><p>Заключение. Обнаружение антител к HBcoreAg при отсутствии HBsAg может свидетельствовать о наличии скрытой формы гепатита В, которая в условиях медикаментозной иммуносупрессии способна перейти в активную форму. Выявленный существенный процент онкологических больных со скрытым вариантом гепатита В подчеркивает необходимость расширения числа диагностических маркеров для скрининга. Дополнительное тестирование на анти-HBcore может существенно повысить вероятность выявления ВГВ на этапе догоспитального обследования.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Purpose of the study</title><p>Purpose of the study. Analysis of the frequency of detection of HBsAg-negative hepatitis B  serological and molecular biological markers in cancer patients.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The blood serum samples of patients hospitalized at the National Medical Research Centre for Oncology in 2016–2023 were studied. 41,523 samples were tested for HBsAg, 2,035 for anti-HBcore, of which 958 were tested simultaneously for both markers using the enzyme-linked immunosorbent assay (ELISA) or chemiluminescent immunoassay (CLIA). 1,380 samples were tested for the presence of hepatitis B virus (HBV) DNA in blood plasma using real time polymerase chain reaction (qPCR).</p></sec><sec><title>Results</title><p>Results. The HBsAg prevalence in cancer patients accounted for 2.5 % (1051/41523), 23.7 % (483/2035) for anti-HBcore. Simultaneous examination for HBsAg and anti-HBcore revealed various combinations of markers. Among HBV-positive variants, the most common was the combination anti-HBcore+HBsAg-. The average number of such patients was 20.6 % (197/958). The simultaneous presence of both markers was noted in 4.6 % of patients (44/958). There were no isolated HBsAg detection cases. The total number of HBV+ individuals was 25.2 % (241/958). 81.7 % out of these (197/241) were HBsAg-negative.</p><p>219 samples with the HBV DNA presence in the blood plasma were identified. 19 of these were examined simultaneously for HBsAg, anti-HBcore. The majority (78.9 %) had all three markers. 21.1 % were HBsAg-negative but DNA-positive (latent form of infection), 15.8 % of which were anti-HBcore-positive, and 5.3 % did not have a single serological marker.</p></sec><sec><title>Conclusion</title><p>Conclusion. The detection of anti-HBcore in the absence of HBsAg can indicate the presence of occult forms of hepatitis B, which under conditions of drug immunosuppression can be reactivated. The identified significant percentage of cancer patients with occult hepatitis B variants highlights the necessity to expand the number of diagnostic markers for screening. Additional testing for anti-HBcore can significantly increase the likelihood of detecting HBV during prehospital testing.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>скрытый вирусный гепатит В</kwd><kwd>реактивация ВГВ</kwd><kwd>онкологические заболевания</kwd></kwd-group><kwd-group xml:lang="en"><kwd>occult viral hepatitis B</kwd><kwd>HBV reactivation</kwd><kwd>oncological diseases</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">European Association for the Study of the Liver. EASL 2017 Clinical Practice Guidelines: management of chronic hepatitis B virus infection. J Hepatol. 2017;67(2):370–398. https://doi.org/10.1016/j.jhep.2017.03.021</mixed-citation><mixed-citation xml:lang="en">Lampertico P., Agarwal K., Berg T. European Association for the Study of the Liver. EASL 2017 Clinical Practice Guidelines: management of chronic hepatitis B virus infection. 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