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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">vestnik-bio-msu</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Московского университета. Серия 16. Биология</journal-title><trans-title-group xml:lang="en"><trans-title>Vestnik Moskovskogo universiteta. Seriya 16. Biologiya</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0137-0952</issn><publisher><publisher-name>Lomonosov Moscow State University,  School of Biology</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.55959/MSU0137-0952-16-80-3S-11</article-id><article-id custom-type="elpub" pub-id-type="custom">vestnik-bio-msu-1544</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 исследования</subject></subj-group></article-categories><title-group><article-title>Оценка связывания ингибиторов PARP в режиме реального времени на основе Ni-NTA-агарозных шариков</article-title><trans-title-group xml:lang="en"><trans-title>Ni-NTA bead-based real-time monitoring of PARPs inhibitor binding</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лобанова</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Lobanova</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лобанова Ангелина Андреевна – инженер кафедры биоинженерии биологического факультета  </p><p>119234, г. Москва, Ленинские горы, д. 1, стр. 12 </p><p>Тел.: 8-495-939-57-38 </p></bio><bio xml:lang="en"><p>1–12 Leninskie gory, Moscow, 119234 </p></bio><email xlink:type="simple">angelina.lobanova@student.msu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Саулина</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Saulina</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Саулина Александра Александровна – мл. науч. сотр. кафедры биоинженерии биологического факультета </p><p>119234, г. Москва, Ленинские горы, д. 1, стр. 12 </p><p>Тел.: 8-495-939-57-38 </p></bio><bio xml:lang="en"><p> 1–12 Leninskie gory, Moscow, 119234 </p></bio><email xlink:type="simple">lys-alex-bio-msu@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гераськина</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Geraskina</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гераськина Ольга Вячеславовна – науч. сотр.  </p><p>119334, г. Москва, ул. Вавилова, д. 34/5 </p><p>Тел.: 8-495-939-57-38 </p></bio><bio xml:lang="en"><p> 34/5 Vavilov Str., Moscow, 119334 </p></bio><email xlink:type="simple">olgasamsonova@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8137-4685</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кошкина</surname><given-names>Д. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Koshkina</surname><given-names>D. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кошкина Дарья Олеговна – мл. науч. сотр. кафедры биоинженерии биологического факультета </p><p>119234, г. Москва, Ленинские горы, д. 1, стр. 12 </p><p>Тел.: 8-495-939-57-38 </p></bio><bio xml:lang="en"><p> 1–12 Leninskie gory, Moscow, 119234 </p></bio><email xlink:type="simple">koshkina.daria.2015@post.bio.msu.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/0000-0003-4129-4984</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Малюченко</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Maluchenko</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Малюченко Наталия Валериевна – канд. биол. наук, доц. кафедры биоинженерии биологического факультета </p><p>119234, г. Москва, Ленинские горы, д. 1, стр. 12 </p><p>Тел.: 8-495-939-57-38 </p></bio><bio xml:lang="en"><p> 1–12 Leninskie gory, Moscow, 119234 </p></bio><email xlink:type="simple">mal_nat@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/0000-0002-1596-9506</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Феофанов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Feofanov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Феофанов Алексей Валерьевич – докт. биол. наук, проф кафедры биоинженерии биологического факультета </p><p>119234, г. Москва, Ленинские горы, д. 1, стр. 12 </p><p>119334, г. Москва, ул. Вавилова, д. 34/5 </p><p>Тел.: 8-495-938-22-91 </p></bio><bio xml:lang="en"><p> 1–12 Leninskie gory, Moscow, 119234 </p><p> 34/5 Vavilov Str., Moscow, 119334 </p></bio><email xlink:type="simple">avfeofanov@yandex.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7389-7993</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Студитский</surname><given-names>В. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Studitsky</surname><given-names>V. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Студитский Василий Михайлович – докт. биол. наук, вед. науч. сотр. кафедры биоинженерии биологического факультета  </p><p>333 Cottman Ave., Philadelphia, 19111, Pennsylvania </p><p>Тел.: 8-495-939-57-38 </p></bio><bio xml:lang="en"><p> 333 Cottman Ave., Philadelphia, 19111, Pennsylvania </p></bio><email xlink:type="simple">vasily.studitsky@fccc.edu</email><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Биологический факультет, Московский государственный университет имени М.В. Ломоносова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>School of Biology, Lomonosov Moscow State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт биологии гена, Российская академия наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Gene Biology, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Биологический факультет, Московский государственный университет имени М.В. Ломоносова; Институт биологии гена, Российская академия наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>School of Biology, Lomonosov Moscow State University; Institute of Gene Biology, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Fox Chase Cancer Center</institution><country>Соединённые Штаты Америки</country></aff><aff xml:lang="en"><institution>Fox Chase Cancer Center</institution><country>United States</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>10</day><month>11</month><year>2025</year></pub-date><volume>80</volume><issue>3S</issue><elocation-id>73–80</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Лобанова А.А., Саулина А.А., Гераськина О.В., Кошкина Д.О., Малюченко Н.В., Феофанов А.В., Студитский В.М., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Лобанова А.А., Саулина А.А., Гераськина О.В., Кошкина Д.О., Малюченко Н.В., Феофанов А.В., Студитский В.М.</copyright-holder><copyright-holder xml:lang="en">Lobanova A.A., Saulina O.V., Geraskina O.V., Koshkina D.O., Maluchenko N.V., Feofanov A.V., Studitsky V.M.</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://vestnik-bio-msu.elpub.ru/jour/article/view/1544">https://vestnik-bio-msu.elpub.ru/jour/article/view/1544</self-uri><abstract><p>В исследовании была создана платформа для флуоресцентной микроскопии, которая позволяет в режиме реального времени визуализировать динамику взаимодействия лиганда с белками, помеченными His-tag, связывающимися с Ni2+ на NTA-агарозных шариках. Эта методология преодолевает критические ограничения традиционных методов, таких как поверхностный плазмонный резонанс или гель-электрофорез, за счет сохранения кинетики фазы раствора и обеспечения субминутного временного разрешения в физиологических буферах. Мы применили эту платформу для исследования действия ингибиторов в системе нуклеосом, которая является более физиологически подходящей моделью, чем свободная ДНК. Изучая взаимодействия PARP2 с нуклеосомами в присутствии и в отсутствие клинических ингибиторов (талазопариба и велипариба), а также реакцию поли(АДФ-рибозил)ирования в присутствии НАД+, мы смогли продемонстрировать прямое пространственное и временное разрешение динамики хроматин-белок. Практически неограниченная совместимость платформы с буферами, возможность мониторинга в режиме реального времени и устранение артефактов ковалентной иммобилизации обеспечивают новое понимание механизмов взаимодействия лекарственных средств и хроматина.</p></abstract><trans-abstract xml:lang="en"><p>This study establishes a real-time fluorescence microscopy platform for visualizing ligand binding dynamics to His-tagged proteins bound to Ni-NTA agarose beads. By preserving solution-phase kinetics while enabling sub-minute temporal resolution in physiological buffers, the methodology overcomes critical limitations of surface-based techniques and gel electrophoretic methods. We applied this platform to investigate inhibitor action within a nucleosomal system, a more physiologically relevant context than free DNA. Through studies of PARP2-nucleosome interactions modulated by clinical inhibitors (talazoparib, veliparib) and by reaction of poly(ADP-ribosyl)ation in the presence of NAD+, we demonstrate direct spatial and temporal resolution of chromatin-protein dynamics. The platform’s virtually unlimited buffer compatibility, real-time monitoring capabilities, and elimination of covalent immobilization artifacts provide transformative insights into drug mechanisms and chromatin engagement processes.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Ni-NTA-агарозные шарики</kwd><kwd>PARP2</kwd><kwd>ингибиторы PARP</kwd><kwd>нуклеосомы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Ni-NTA-agarose beads</kwd><kwd>PARP2</kwd><kwd>PARP inhibitors</kwd><kwd>nucleosomes</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Российского научного фонда, проект № 21-64-00001-п.</funding-statement><funding-statement xml:lang="en">This work was supported by the Russian Science Foundation, project no. 21-64-00001-p.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Luger K., Hansen J.C. 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