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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">actabiomedica</journal-id><journal-title-group><journal-title xml:lang="ru">Acta Biomedica Scientifica</journal-title><trans-title-group xml:lang="en"><trans-title>Acta Biomedica Scientifica</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2541-9420</issn><issn pub-type="epub">2587-9596</issn><publisher><publisher-name>Scientific Centre for Family Health and Human Reproduction Problems</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29413/ABS.2025-10.5.25</article-id><article-id custom-type="elpub" pub-id-type="custom">actabiomedica-5708</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>ЭКСПЕРИМЕНТАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>EXPERIMENTAL RESEARCHES</subject></subj-group></article-categories><title-group><article-title>Количественное определение фоновой экспрессии интерферона бета в культуре клеток сибирской ночницы (Myotis sibiricus)</article-title><trans-title-group xml:lang="en"><trans-title>Quantification of background expression of interferon beta in cell culture of Siberian bat (Myotis sibiricus)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6039-0854</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ляпунова</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Liapunova</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ляпунова Наталья Андреевна – кандидат биологических наук, научный сотрудник лаборатории трансмиссивных инфекций, Институт эпидемиологии и микробиологии, </p><p>664003, г. Иркутск, ул. Тимирязева, 16</p></bio><bio xml:lang="en"><p>Natalia A. Liapunovа – Cand. Sc. (Biol.), Research Officer at the Laboratory of Arthropod-Borne Infections, Institute of Epidemiology and Microbiology, </p><p>Timiryazeva st., 16, Irkutsk 664003</p></bio><email xlink:type="simple">nataly2193@mail.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/0000-0002-8441-3640</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хаснатинов</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Khasnatinov</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Хаснатинов Максим Анатольевич – доктор биологических наук, главный научный сотрудник, руководитель лаборатории трансмиссивных инфекций, Институт эпидемиологии и микробиологии, </p><p>664003, г. Иркутск, ул. Тимирязева, 16</p></bio><bio xml:lang="en"><p>Maxim A. Khasnatinov – Dr. Sc. (Biol.), Chief Researcher, Head of the Laboratory of Arthropod-Borne Infections, Institute of Epidemiology and Microbiology, </p><p>Timiryazeva st., 16, Irkutsk 664003</p></bio><email xlink:type="simple">khasnatinov@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/0000-0002-6705-3970</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Данчинова</surname><given-names>Г. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Danchinova</surname><given-names>G. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Данчинова Галина Анатольевна – доктор биологических наук, главный научный сотрудник лаборатории трансмиссивных инфекций, Институт эпидемиологии и микробиологии, </p><p>664003, г. Иркутск, ул. Тимирязева, 16</p></bio><bio xml:lang="en"><p>Galina A. Danchinova – Dr. Sc. (Biol.), Chief Researcher at the Laboratory of Arthropod-Borne Infections, Institute of Epidemiology and Microbiology, </p><p>Timiryazeva st., 16, Irkutsk 664003</p></bio><email xlink:type="simple">dan-chin@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/0000-0001-9936-5330</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Соловаров</surname><given-names>И. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Solovarov</surname><given-names>I. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Соловаров Иннокентий Сергеевич – кандидат биологических наук, младший научный сотрудник лаборатории трансмиссивных инфекций, Институт эпидемиологии и  микробиологии, </p><p>664003, г. Иркутск, ул. Тимирязева, 16</p></bio><bio xml:lang="en"><p>Innokentii S. Solovarov – Cand. Sc. (Biol.), Junior Research Officer at the Laboratory of Arthropod-Borne Infections, Institute of Epidemiology and Microbiology, </p><p>Timiryazeva st., 16, Irkutsk 664003</p></bio><email xlink:type="simple">keschass@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБНУ «Научный центр проблем здоровья семьи и репродукции человека»</institution></aff><aff xml:lang="en"><institution>Scientific Centre for Family Health and Human Reproduction Problems</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>17</day><month>12</month><year>2025</year></pub-date><volume>10</volume><issue>5</issue><fpage>233</fpage><lpage>243</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ляпунова Н.А., Хаснатинов М.А., Данчинова Г.А., Соловаров И.С., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Ляпунова Н.А., Хаснатинов М.А., Данчинова Г.А., Соловаров И.С.</copyright-holder><copyright-holder xml:lang="en">Liapunova N.A., Khasnatinov M.A., Danchinova G.A., Solovarov I.S.</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.actabiomedica.ru/jour/article/view/5708">https://www.actabiomedica.ru/jour/article/view/5708</self-uri><abstract><sec><title>Обоснование</title><p>Обоснование. Рукокрылые являются хозяевами и переносчиками широкого спектра зоонозов. Исследование иммунного ответа этих млекопитающих на вирусные инфекции необходимо для раскрытия фундаментальных механизмов циркуляции зоонозных инфекций в природе. Существует гипотеза о постоянно «включенной» активности белков интерферонового пути у рукокрылых для противодействия вирусным инфекциям. В этом исследовании мы оценили уровень активности системы врожденного иммунитета в клеточной линии почки сибирской ночницы (Myotis sibiricus, Kastschenko, 1905) MdbK3-14, взяв в качестве маркера экспрессию интерферона бета.</p></sec><sec><title>Цель исследования</title><p>Цель исследования. Оценить фоновый уровень экспрессии гена интерферона бета (IFN-β) в неинфицированных клетках Myotis sibiricus. </p></sec><sec><title>Методы</title><p>Методы. Культуру клеток MdbK3-14 выращивали в 24-луночных планшетах. Монослои клеток открепляли раствором трипсина и выделяли суммарную РНК. Концентрацию мРНК транскриптов гена IFN-β и референтных генов бета-актина (ACTB) и субъединицы A сукцинатдегидрогеназного комплекса (SDHA) определяли с помощью одностадийной мультиплексной ОТ-рвПЦР и подтверждали с помощью ОТ-цПЦР.</p></sec><sec><title>Результаты</title><p>Результаты. Разработаны специфичные праймеры с зондом для детекции мРНК гена IFN-β в клетках рукокрылых. Выявлена стабильная детекция транскриптов генов SDHA и IFN-β как в ОТ-рвПЦР (CV = 0,5 % и CV = 0,2 % соответственно), так и в ОТ-цПЦР (CV = 0,8 % и CV = 1,4 % соответственно). Детекция мРНК ACTB в ОТ-цПЦР также проходила равномерно во всех образцах (CV = 0,8  %), однако в ОТ-рвПЦР выявлена некоторая нестабильность для бета-актина (CV = 3,6 %). Результаты количественного определения в ОТ-рвПЦР и ОТ-цПЦР коррелировали между собой. Установлено, что уровень экспрессии IFN-β в клетках MdbK3-14 сопоставим (в ОТ-рвПЦР в среднем 0,97 ± 0,15 отн.ед.) или несколько ниже (в ОТ-цПЦР в среднем 0,13 ± 0,05 отн.ед.), чем экспрессия белков домашнего хозяйства ACTB и SDHA.</p></sec><sec><title>Заключение</title><p>Заключение. При отсутствии иммунной стимуляции в клетках почки M. sibiricus наблюдается фоновая экспрессия IFN-β. </p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Background</title><p>Background. The study of the immune response of these mammals to viral infections is necessary to reveal the fundamental mechanisms of the circulation of zoonotic infections in nature. There is a hypothesis about the constantly “on” activity of the interferon pathway proteins, developed evolutionarily in bats to counteract viral infections. We assessed the expression of interferon beta as a marker of the innate immune system in kidney cells of the Siberian bat (Myotis sibiricus, Kastschenko, 1905) MdbK3-14.</p></sec><sec><title>The aim</title><p>The aim. Evaluation of the background level of interferon beta (IFN-β) gene expression in bat cells as a marker of the activity of the mammalian innate immune system.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. MdbK3-14 cells were grown in 24-well plates. Cell monolayers were detached with trypsin solution and total RNA was isolated. The concentration of mRNA of IFN-β gene transcripts and reference genes beta actin (ACTB) and succinate dehydrogenase subunit A (SDHA) was determined by one-step multiplex RT-qPCR and confirmed by RT-dPCR.</p></sec><sec><title>Results</title><p>Results. Specific primers with a probe for detecting mRNA of the IFN-β gene in bat cells were designed. The detection of SDHA and IFN-β gene transcripts was stable both in RT-qPCR (CV = 0.5 % and CV = 0.2 %, respectively) and in RT-dPCR (CV = 0.8 % and CV = 1.4 %, respectively). In addition, stable detection of ACTB mRNA was achieved using RT-dPCR (CV = 0.8 %), but the average variability value for actin using RT-qPCR exceeded the permissible value (CV = 3.6 % with an acceptable CV ≤ 2 %). The results of quantitative determination in RT-qPCR and RT-dPCR correlated with each other. The expression levels of IFN-β in MdbK3-14 cells averaged 0.97 ± 0.15 relative units in RT-qPCR and 0.13 ± 0.05 relative units in RT-dPCR.</p></sec><sec><title>Conclusions</title><p>Conclusions. In the absence of immune stimulation, background expression of IFN-β occurs in the M. sibiricus kidney cell line.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>Myotis sibiricus</kwd><kwd>клеточные линии</kwd><kwd>экспрессия</kwd><kwd>мРНК</kwd><kwd>SDHA</kwd><kwd>ACTB</kwd><kwd>IFN-β</kwd><kwd>гены «домашнего хозяйства»</kwd><kwd>количественная ОТ-ПЦР</kwd><kwd>цифровая ОТ-ПЦР</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Myotis sibiricus</kwd><kwd>cell lines</kwd><kwd>expression</kwd><kwd>mRNA</kwd><kwd>SDHA</kwd><kwd>ACTB</kwd><kwd>IFN-β</kwd><kwd>housekeeping genes</kwd><kwd>quantitative RT-PCR</kwd><kwd>digital PCR</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">Ботвинкин А.Д. Вирусы и летучие мыши: междисциплинарные проблемы. Вопросы вирусологии. 2021; 66(4): 259-268. doi: 10.36233/0507-4088-79</mixed-citation><mixed-citation xml:lang="en">Botvinkin AD. 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