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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">Doklady Biological Sciences</journal-id><journal-title-group><journal-title xml:lang="en">Doklady Biological Sciences</journal-title><trans-title-group xml:lang="ru"><trans-title>Доклады Российской академии наук. Науки о жизни</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2686-7389</issn><issn publication-format="electronic">3034-5057</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">693509</article-id><article-id pub-id-type="doi">10.31857/S2686738925040156</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</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">The Impact of the Protein-Opener of the Desmoglein Contacts on the Accumulation of Targeted Nanoagents in HER2-Positive Solid Tumors</article-title><trans-title-group xml:lang="ru"><trans-title>Влияние белка-открывателя десмоглеиновых контактов накопление адресных наноагентов в HER2‑положительных солидных опухолях</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Proshkina</surname><given-names>G. M.</given-names></name><name xml:lang="ru"><surname>Прошкина</surname><given-names>Г. М.</given-names></name></name-alternatives><email>gmb@ibch.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shramova</surname><given-names>E. I.</given-names></name><name xml:lang="ru"><surname>Шрамова</surname><given-names>Е. И.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Mirkasymov</surname><given-names>A. B.</given-names></name><name xml:lang="ru"><surname>Миркасымов</surname><given-names>А. Б.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Serova</surname><given-names>E. V.</given-names></name><name xml:lang="ru"><surname>Серова</surname><given-names>Е. В.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Deyev</surname><given-names>S. M.</given-names></name><name xml:lang="ru"><surname>Деев</surname><given-names>С. М.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">M.M. Shemyakin and Yu. A. Ovchinnikov Institute of Bioorganic Chemistry RAS</institution></aff><aff><institution xml:lang="ru">Институт биоорганической химии им. академиков М. М. Шемякина и Ю. А. Овчинникова РАН</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Moscow Institute of Engineering Physics, National Research Nuclear University “MEPhI”</institution></aff><aff><institution xml:lang="ru">Московский инженерно-физический институт, Национальный исследовательский ядерный университет “МИФИ”</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Ogarev National Research Mordovian State University</institution></aff><aff><institution xml:lang="ru">Национальный исследовательский Мордовский государственный университет им. Н. П. Огарева</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-08-15" publication-format="electronic"><day>15</day><month>08</month><year>2025</year></pub-date><volume>523</volume><issue>1</issue><issue-title xml:lang="en">VOL 523, NO (2025)</issue-title><issue-title xml:lang="ru">ТОМ 523, № (2025)</issue-title><fpage>469</fpage><lpage>473</lpage><history><date date-type="received" iso-8601-date="2025-10-16"><day>16</day><month>10</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Российская академия наук</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/2686-7389/article/view/693509">https://journals.eco-vector.com/2686-7389/article/view/693509</self-uri><abstract xml:lang="en"><p>Despite significant progress in oncotherapy, oncological diseases continue to pose a serious problem for public health. The limited penetration of nanoscale therapeutic drugs into solid tumors, due to the presence of tight intercellular junctions, does not allow achieving therapeutically effective drug concentrations in distal tumor cells, which leads to the appearenceof drug resistance. In this work, to increase the accumulation of HER2-specific small gold nanoparticles (DARPin-AuNPs) in solid tumors, the use of these particles in combination with the protein-opener of desmoglein junctions JO-4 is proposed. A quantitative assessment of gold biodistribution in mice showed that co-administration of DARPin-AuNP/JO-4 in vivo increased particle accumulation in tumors by approximately 2.5-fold compared to administration of DARPin-AuNP alone.</p></abstract><trans-abstract xml:lang="ru"><p>Несмотря на значительный прогресс в онкотерапии, онкологические заболевания по-прежнему представляют собой серьезную проблему для общественного здравоохранения. Ограниченное проникновение наноразмерных терапевтических препаратов в солидные опухоли, обусловленное наличием плотных межклеточных контактов, не позволяет достичь терапевтически эффективных концентраций препарата в дистальных опухолевых клетках, что ведет к возникновению лекарственной резистентности. В данной работе для увеличения накопления HER2-специфичных малых золотых наночастиц (DARPin-AuNPs) в солидных опухолях предложено использование данных частиц в сочетании с белком-открывателем десмоглеиновых контактов JO-4. Количественная оценка биораспределения золота в организме мышей показала, что совместное введение DARPin-AuNPs/JO-4 in vivo приводит к увеличению накопления частиц в опухоли в ~ 2.5 раза по сравнению с введением только DARPin-AuNPs.</p></trans-abstract><kwd-group xml:lang="en"><kwd>targeted therapy</kwd><kwd>gold nanoparticles</kwd><kwd>DARPin</kwd><kwd>HER2</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>адресная терапия</kwd><kwd>золотые наночастицы</kwd><kwd>DARPin</kwd><kwd>HER2</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при поддержке гранта № 075-15-2024-536 (руководитель С. М. Деев) Министерства науки и высшего образования Российской Федерации.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Sung H., Ferlay J., Siegel R. L., et al. Global Cancer Statistics 2020: GLOBOCAN Estimates of Incidence and Mortality Worldwide for 36 Cancers in 185 Countries // CA Cancer J. Clin. 2021. V. 71, № 3. P. 209–249.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Deyev S., Proshkina G., Ryabova A., et al. Synthesis, Characterization, and Selective Delivery of DARPin-Gold Nanoparticle Conjugates to Cancer Cells // Bioconjug. Chem. 2017. V. 28, № 10. P. 2569–2574.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Proshkina G. M., Shramova E. I., Serova E. V., et al. PTT-Mediated Inhibition of Cancer Proliferation and Tumor Progression by DARPin-Coated Gold Nanoparticles // Journal of Nanotheranostics. 2025. V. 6, № 1. P. 2.</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>Steiner D., Forrer P., Pluckthun A. Efficient selection of DARPins with sub-nanomolar affinities using SRP phage display // J. Mol. Biol. 2008. V. 382, № 5. P. 1211–1227.</mixed-citation></ref><ref id="B5"><label>5.</label><mixed-citation>Brunner J., Ragupathy S., Borchard G. Target specific tight junction modulators // Adv. Drug Deliv. Rev. 2021. V. 171. P. 266–288.</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>Choi I. K., Strauss R., Richter M., et al. Strategies to increase drug penetration in solid tumors // Front. Oncol. 2013. V. 3. P. 193.</mixed-citation></ref><ref id="B7"><label>7.</label><mixed-citation>Beyer I., van Rensburg R., Strauss R., et al. Epithelial junction opener JO-1 improves monoclonal antibody therapy of cancer // Cancer Res. 2011. V. 71, № 22. P. 7080–7090.</mixed-citation></ref><ref id="B8"><label>8.</label><mixed-citation>Wang H., Li Z., Yumul R., et al. Multimerization of adenovirus serotype 3 fiber knob domains is required for efficient binding of virus to desmoglein 2 and subsequent opening of epithelial junctions // J. Virol. 2011. V. 85, № 13. P. 6390–6402.</mixed-citation></ref><ref id="B9"><label>9.</label><mixed-citation>Beyer I., Cao H., Persson J., et al. Coadministration of epithelial junction opener JO-1 improves the efficacy and safety of chemotherapeutic drugs // Clin. Cancer Res. 2012. V. 18, № 12. P. 3340–3351.</mixed-citation></ref><ref id="B10"><label>10.</label><mixed-citation>Richter M., Yumul R., Wang H., et al. Preclinical safety and efficacy studies with an affinity-enhanced epithelial junction opener and PEGylated liposomal doxorubicin // Mol. Ther. Methods Clin. Dev. 2015. V. 2. P. 15005.</mixed-citation></ref><ref id="B11"><label>11.</label><mixed-citation>Wang C. E., Yumul R. C., Lin J., et al. Junction opener protein increases nanoparticle accumulation in solid tumors // J. Control. Release. 2018. V. 272. P. 9–16.</mixed-citation></ref><ref id="B12"><label>12.</label><mixed-citation>Шрамова E. И., Фролова A. Ю., Филимонова В. P. и др. Система для самоактивируемой адресной фотодинамической терапии на основе мультимодального белка DARP-NanoLuc-SOPP3 // Acta Naturae. 2023. V. 15, № 4. P. 100–110.</mixed-citation></ref><ref id="B13"><label>13.</label><mixed-citation>Lavin S. R., McWhorter T. J., Karasov W. H. Mechanistic bases for differences in passive absorption // J. Exp. Biol. 2007. V. 210, № Pt 15. P. 2754–2764.</mixed-citation></ref><ref id="B14"><label>14.</label><mixed-citation>Wang H., Li Z. Y., Liu Y., et al. Desmoglein 2 is a receptor for adenovirus serotypes 3, 7, 11 and 14 // Nat. Med. 2011. V. 17, № 1. P. 96–104.</mixed-citation></ref><ref id="B15"><label>15.</label><mixed-citation>Wang H., Ducournau C., Saydaminova K., et al. Intracellular Signaling and Desmoglein 2 Shedding Triggered by Human Adenoviruses Ad3, Ad14, and Ad14P1 // J. Virol. 2015. V. 89, № 21. P. 10841–10859.</mixed-citation></ref><ref id="B16"><label>16.</label><mixed-citation>Qin S., Liao Y., Du Q., et al. DSG2 expression is correlated with poor prognosis and promotes early-stage cervical cancer // Cancer Cell Int. 2020. V. 20. P. 206.</mixed-citation></ref></ref-list></back></article>
