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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="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Problems of Virology</journal-id><journal-title-group><journal-title xml:lang="en">Problems of Virology</journal-title><trans-title-group xml:lang="ru"><trans-title>Вопросы вирусологии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0507-4088</issn><issn publication-format="electronic">2411-2097</issn><publisher><publisher-name xml:lang="en">Central Research Institute for Epidemiology</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">594</article-id><article-id pub-id-type="doi">10.36233/0507-4088-91</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL RESEARCHES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Identification by enzyme immunoassay of escape mutants S143L and G145R of hepatitis B virus (<italic>Hepadnaviridae: Orthohepadnavirus: Hepatitis B virus</italic>)</article-title><trans-title-group xml:lang="ru"><trans-title>Иммуноферментная идентификация escape-мутантов S143L и G145R вируса гепатита B (<italic>Hepadnaviridae: Orthohepadnavirus: Hepatitis B virus</italic>)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9724-695X</contrib-id><name-alternatives><name xml:lang="en"><surname>Konopleva</surname><given-names>M. V.</given-names></name><name xml:lang="ru"><surname>Коноплeва</surname><given-names>М. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Maria V. Konopleva, Ph.D (Biol.), Senior Researcher of the Immunity Mediators and Effectors Laboratory, Immunology Department</p><p>123098, Moscow</p></bio><bio xml:lang="ru"><p>Коноплева Мария Вениаминовна, канд. биол. наук, старший научный сотрудник лаборатории медиаторов и эффекторов иммунитета отдела иммунологии</p><p>123098, Москва</p></bio><email>maria-konopleva@rambler.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7216-4301</contrib-id><name-alternatives><name xml:lang="en"><surname>Feldsherova</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Фельдшерова</surname><given-names>А. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>123098, Moscow</p></bio><bio xml:lang="ru"><p>123098, Москва</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2197-4184</contrib-id><name-alternatives><name xml:lang="en"><surname>Elgort</surname><given-names>D. A.</given-names></name><name xml:lang="ru"><surname>Эльгорт</surname><given-names>Д. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>123098, Moscow</p></bio><bio xml:lang="ru"><p>123098, Москва</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4668-9379</contrib-id><name-alternatives><name xml:lang="en"><surname>Tupoleva</surname><given-names>T. A.</given-names></name><name xml:lang="ru"><surname>Туполева</surname><given-names>Т. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>125167, Moscow</p></bio><bio xml:lang="ru"><p>125167, Москва</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5142-846X</contrib-id><name-alternatives><name xml:lang="en"><surname>Kokhanovskaya</surname><given-names>N. A.</given-names></name><name xml:lang="ru"><surname>Кохановская</surname><given-names>Н. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>123098, Moscow</p></bio><bio xml:lang="ru"><p>123098, Москва</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4427-1809</contrib-id><name-alternatives><name xml:lang="en"><surname>Pankratova</surname><given-names>V. N.</given-names></name><name xml:lang="ru"><surname>Панкратова</surname><given-names>В. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>123098, Moscow</p></bio><bio xml:lang="ru"><p>123098, Москва</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6686-9011</contrib-id><name-alternatives><name xml:lang="en"><surname>Semenenko</surname><given-names>T. A.</given-names></name><name xml:lang="ru"><surname>Семененко</surname><given-names>Т. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>123098, Moscow</p></bio><bio xml:lang="ru"><p>123098, Москва</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5731-3284</contrib-id><name-alternatives><name xml:lang="en"><surname>Suslov</surname><given-names>A. P.</given-names></name><name xml:lang="ru"><surname>Суслов</surname><given-names>А. П.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>123098, Moscow</p></bio><bio xml:lang="ru"><p>123098, Москва</p></bio><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">FSBI «National Research Centre for Epidemiology and Microbiology named after honorary academician N.F. Gamaleya» of the Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный исследовательский центр эпидемиологии и микробиологии имени почётного академика&#13;
Н.Ф. Гамалеи» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">FSBI «National Medical Research Center for Hematology» of the Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр гематологии» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2022-03-16" publication-format="electronic"><day>16</day><month>03</month><year>2022</year></pub-date><volume>67</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>48</fpage><lpage>58</lpage><history><date date-type="received" iso-8601-date="2022-03-15"><day>15</day><month>03</month><year>2022</year></date><date date-type="accepted" iso-8601-date="2022-03-15"><day>15</day><month>03</month><year>2022</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2022, Konopleva M.V., Feldsherova A.A., Elgort D.A., Tupoleva T.A., Kokhanovskaya N.A., Pankratova V.N., Semenenko T.A., Suslov A.P.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2022, Коноплeва М.В., Фельдшерова А.А., Эльгорт Д.А., Туполева Т.А., Кохановская Н.А., Панкратова В.Н., Семененко Т.А., Суслов А.П.</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="en">Konopleva M.V., Feldsherova A.A., Elgort D.A., Tupoleva T.A., Kokhanovskaya N.A., Pankratova V.N., Semenenko T.A., Suslov A.P.</copyright-holder><copyright-holder xml:lang="ru">Коноплeва М.В., Фельдшерова А.А., Эльгорт Д.А., Туполева Т.А., Кохановская Н.А., Панкратова В.Н., Семененко Т.А., Суслов А.П.</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://virusjour.crie.ru/jour/article/view/594">https://virusjour.crie.ru/jour/article/view/594</self-uri><abstract xml:lang="en"><p><bold>Introduction.</bold> The achievement of the goal of the World Health Organization to eliminate viral hepatitis B by 2030 seems to be problematic partly due to the presence of escape mutants of its etiological agent, hepatitis B virus (HBV) (&lt;i&gt;Hepadnaviridae: Orthohepadnavirus: Hepatitis B virus&lt;/i&gt;), that are spreading mainly in the risk groups. Specific routine diagnostic assays aimed at identification of HBV escape mutants do not exist.</p><p>The study <bold>aimed</bold> the evaluation of the serological fingerprinting method adapted for routine detection of escape mutations in 143 and 145 aa positions of HBV surface antigen (HBsAg).</p><p><bold>Material and methods.</bold> HBV DNA from 56 samples of HBsAg-positive blood sera obtained from donors, chronic HBsAg carriers and oncohematology patients has been sequenced. After the identification of mutations in HBsAg, the samples were tested in the enzyme-linked immunosorbent assay (ELISA) kit «Hepastrip-mutant-3K».</p><p><bold>Results and discussion.</bold> Escape mutations were detected mainly in patients with hematologic malignancies. Substitutions in 143 and 145 aa were found in 10.81% and in 8.11% of such patients, respectively. The G145R mutation was recognized using ELISA kit in almost all cases. The kit specifically recognized the S143L substitution in contrast to the S143T variant. The presence of neighbor mutation D144E can be assumed due to it special serological fingerprint.</p><p><bold>Conclusion.</bold> ELISA-based detection of escape mutations S143L, D144E and G145R can be used for routine diagnostics, especially in the risk groups. The diagnostic parameters of the kit can be refined in additional studies. This immunoassay and methodology are applicable for the development and quality control of vaccines against escape mutants.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение.</bold> Достижение цели Всемирной организации здравоохранения по ликвидации вирусного гепатита В к 2030 г. представляется проблематичным, отчасти из-за наличия мутантов ускользания (<italic>англ.</italic> escape) у возбудителя этого заболевания, вируса гепатита В (ВГВ) (<italic>Hepadnaviridae</italic><italic>: </italic><italic>Orthohepadnavirus</italic><italic>: </italic><italic>Hepatitis</italic><italic> </italic><italic>B</italic><italic> </italic><italic>virus</italic>), распространяющихся преимущественно в группах риска. Специфической рутинной диагностики, направленной на идентификацию escape-мутантов, не существует.</p><p><bold>Цель исследования</bold> – оценка метода серологического портретирования, адаптированного для рутинного выявления escape-мутаций в 143 и 145 аминокислотных остатках (а.о.) поверхностного антигена (HBsAg) ВГВ.</p><p><bold>Материал и методы.</bold> ДНК ВГВ из 56 образцов HBsAg-положительных сывороток крови, полученных от доноров, хронических носителей HBsAg, а также страдающих злокачественными заболеваниями крови лиц, секвенировали. После выявления мутаций в HBsAg образцы тестировали в иммуноферментной тест-системе «Гепастрип-мутант-3К».</p><p><bold>Результаты и обсуждение.</bold> Escape-мутации выявлялись преимущественно у больных со злокачественными заболеваниями крови: замены в 143 и 145 а.о. обнаружены в 10,81 и 8,11% случаев соответственно. С помощью иммуноферментного анализа мутация G145R распознана почти во всех случаях. Тест-система специфично распознавала замену S143L в отличие от варианта S143T. Присутствие соседней мутации D144E может предполагаться благодаря ее особому серологическому портрету.</p><p><bold>Заключение.</bold> Иммуноферментная детекция escape-мутаций S143L, D144E и G145R может применяться для рутинной диагностики, особенно в группах риска. Диагностические параметры тест-системы могут быть уточнены при дополнительных исследованиях. Данная иммуноферментная тест-система и методика применимы для разработки и контроля качества вакцин против escape-мутантов.</p></trans-abstract><kwd-group xml:lang="en"><kwd>hepatitis B virus (HBV)</kwd><kwd>viral hepatitis B</kwd><kwd>escape</kwd><kwd>mutant</kwd><kwd>HBsAg</kwd><kwd>G145R</kwd><kwd>S143L</kwd><kwd>S gene</kwd><kwd>enzyme-linked immunosorbent assay (ELISA)</kwd><kwd>monoclonal antibody (AB)</kwd><kwd>next generation sequencing (NGS)</kwd><kwd>oncohematology</kwd><kwd>hematologic malignancies</kwd><kwd>serological fingerprint</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>вирус гепатита В (ВГВ)</kwd><kwd>вирусный гепатит B</kwd><kwd>ускользание</kwd><kwd>мутант</kwd><kwd>HBsAg</kwd><kwd>G145R</kwd><kwd>S143L</kwd><kwd>S-ген</kwd><kwd>иммуноферментный анализ (ИФА)</kwd><kwd>моноклональное антитело (АТ)</kwd><kwd>секвенирование нового поколения (NGS)</kwd><kwd>онкогематология</kwd><kwd>злокачественные заболевания крови</kwd><kwd>серологический портрет</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>1. 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