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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">vestim</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной  академии наук Беларуси. Серия медицинских наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus, Medical series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1814-6023</issn><issn pub-type="epub">2524-2350</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1814-6023-2026-23-1-19-28</article-id><article-id custom-type="elpub" pub-id-type="custom">vestim-1070</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>КЛИНИЧЕСКАЯ И ЭКСПЕРИМЕНТАЛЬНАЯ МЕДИЦИНА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL AND EXPERIMENTAL MEDICINE</subject></subj-group></article-categories><title-group><article-title>Упругие свойства и коллаген-синтетическая активность фибробластов легких после внешнего облучения крыс в дозах 0,1–15 Гр</article-title><trans-title-group xml:lang="en"><trans-title>Elastic properties and collagen-synthesizing activity of pulmonary fibroblasts after external irradiation of rats at doses of 0.1–15 Gy</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6365-3856</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шклярова</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Shkliarava</surname><given-names>N. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шклярова Анастасия Николаевна – науч. сотрудник</p><p>ул. Федюнинского, 4, 246007, г. Гомель</p></bio><bio xml:lang="en"><p>Nastassia M. Shkliarava ‒ Researcher </p><p>4, Fedyuninski Str., 246007, Gomel</p><p> </p></bio><email xlink:type="simple">anshkliarava@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6956-9014</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Стародубцева</surname><given-names>М. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Starodubtseva</surname><given-names>M. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Стародубцева Мария Николаевна – д-р биол. наук, доцент, профессор кафедры медицинской и биологической физики</p><p>ул. Ланге, 5, 246000, г. Гомель</p></bio><bio xml:lang="en"><p>Maria N. Starodubtseva ‒ D. Sc. (Biol.), Associate Professor, Professor of the Department of Medical and Biological Physics </p><p>5, Lange Str., 246000, Gomel</p></bio><email xlink:type="simple">maria.n.starodubtseva@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт радиобиологии Национальной академии наук Беларуси</institution></aff><aff xml:lang="en"><institution>Institute of Radiobiology of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Гомельский государственный медицинский университет</institution></aff><aff xml:lang="en"><institution>Gomel State Medical University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>03</day><month>03</month><year>2026</year></pub-date><volume>23</volume><issue>1</issue><fpage>19</fpage><lpage>28</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Шклярова А.Н., Стародубцева М.Н., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Шклярова А.Н., Стародубцева М.Н.</copyright-holder><copyright-holder xml:lang="en">Shkliarava N.M., Starodubtseva M.N.</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://vestimed.belnauka.by/jour/article/view/1070">https://vestimed.belnauka.by/jour/article/view/1070</self-uri><abstract><p>Радиационный фиброз является одним из серьезных осложнений лучевой терапии, которое развивается в течение длительного времени после облучения. Молекулярно-клеточные механизмы, ведущие к развитию этой патологии, имеют место в значительно более ранние сроки. Ионизирующее излучение меняет свойства и функции фибробласта, являющегося основной клеткой соединительной ткани, продуцирующей белки внеклеточного матрикса. Целью исследования стало выявление с помощью методов атомно-силовой и флуоресцентной микроскопии закономерностей радиационно-индуцированных изменений модуля упругости поверхности фибробластов легкого, уровня производства клетками коллагена и их взаимосвязи при облучении рентгеновским излучением области грудной клетки крыс и 3-недельного постлучевого периода. Установлено формирование зависимого от дозы облучения механического фенотипа фибробластов, обусловленного как изменением структуры актинового кортекса, так и формированием стрессовых волокон в зоне ядра клетки. Показано, что формирование радиационно-индуцированного механического фенотипа фибробластов коррелирует с их коллаген-синтетической активностью, что позволяет предположить внутренний механизм влияния механических свойств клетки в ядерной зоне на продукцию коллагена. Полученные данные углубляют понимание молекулярно-клеточных механизмов развития радиационного фиброза.</p></abstract><trans-abstract xml:lang="en"><p>Radiation fibrosis is one of the serious complications of radiation therapy that develops over a long period after exposure. The molecular and cellular mechanisms leading to the development of this pathology take place at a much earlier time. Ionizing radiation changes the properties and functions of fibroblasts, the primary cells of connective tissue that produce extracellular matrix proteins. The study aimed to identify, using atomic force and fluorescence microscopy methods, patterns of radiation-induced changes in the elastic modulus of the pulmonary fibroblast surface, the level of collagen production by cells and their relationship following localized thoracic X-ray irradiation in rats and a 3-week post-exposure period. The formation of a dose-dependent mechanical phenotype of fibroblasts has been established, due to both changes in the structure of the actin cortex and the formation of stress fibers in the nuclear zones of cells. It has been shown that the formation of a radiation-induced mechanical phenotype of fibroblasts correlates with their collagen-synthetic ability, which suggests an internal mechanism of influence of the mechanical properties of cells in the nuclear zone on collagen production. The data obtained deepen the understanding of the molecular and cellular mechanisms of radiation fibrosis development.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>фибробласты легкого</kwd><kwd>крыса</kwd><kwd>рентгеновское излучение</kwd><kwd>модуль упругости</kwd><kwd>АСМ</kwd><kwd>коллаген</kwd><kwd>стрессовые волокна</kwd></kwd-group><kwd-group xml:lang="en"><kwd>pulmonary fibroblasts</kwd><kwd>rat</kwd><kwd>X-rays</kwd><kwd>elastic modulus</kwd><kwd>AFM</kwd><kwd>collagen</kwd><kwd>stress fibers</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках задания «Разработать критерии оценки радиационно-индуцированных изменений ткани внутренней среды, основанной на анализе структуры и механических свойств клеточного компонента на моделях in vitro и in vivo» «Природные ресурсы и окружающая среда 3.01» ГПНИ «Природные ресурсы и окружающая среда», подпрограмма 3 «Радиация и биологические системы» на 2021–2025 гг. (№ ГР 20210231).</funding-statement><funding-statement xml:lang="en">The work was performed within the framework of the assignment “To develop criteria for assessing radiation-induced changes in the tissue of the internal environment based on the analysis of the structure and mechanical properties of the cellular component in in vitro and in vivo models” “Natural Resources and the environment 3.01” of the State Scientific Research Program “Natural Resources and the Environment”, subprogram 3 “Radiation and biological systems” on 2021–2025 (No. GR 20210231).</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">Replicative and radiation-induced aging: a comparison of gene expression profiles / A. M. Aliper, M. E. Bozdaganyan, P. S. Orekhov [et al.] // Aging. – 2019. – Vol. 11, N 8. – P. 2378–2387. https://doi.org/10.18632/aging.101921</mixed-citation><mixed-citation xml:lang="en">Aliper A. M, Bozdaganyan M. E., Orekhov P. S., Zhavoronkov A., Osipov A. N. Replicative and radiation-induced aging: a comparison of gene expression profiles. Aging, 2019, vol. 11, no. 8, pp. 2378–2387. https://doi: 10.18632/aging.101921</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Влияние рентгеновского излучения на структурные и механические свойства поверхностного слоя фибробластов крыс / И. А. Челнокова, А. Н. Шклярова, Т. Д. Матвеенкова, М. Н. Стародубцева // Актуальные проблемы медицины: сб. науч. ст. Респ. науч.-практ. конф. с междунар. участием, Гомель, 10 нояб. 2023 г.: в 3 т. / Гомел. гос. мед. ун-т; редкол.: И. О. Стома [и др.]. – Гомель, 2023. – Т. 2. – С. 118–122.</mixed-citation><mixed-citation xml:lang="en">Chelnokova I. A., Shklyarova A. N., Matveenkova T. D., Starodubtseva M. N. The effect of X-ray radiation on the structural and mechanical properties of the surface layer of rat fibroblasts. Aktual’nye problemy meditsiny: sbornik nauchnykh statei Respublikanskoi nauchno-prakticheskoi konferentsii s mezhdunarodnym uchastiem (Gomel’, 10 noyabrya 2023 goda). Tom 2 [Current Problems of Medicine: A Collection of Scientific Articles from the Republican Scientific and Practical Conference with International Participation (Gomel, November 10, 2023). Vol. 2]. Gomel, 2023, vol. 2, pp. 118–122 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Starodubtseva, M. N. Mechanical properties of cells and ageing / M. N. Starodubtseva // Ageing Research Reviews. – 2011. – Vol. 10, N 1. – P. 16–25. https://doi.org/10.1016/j.arr.2009.10.005</mixed-citation><mixed-citation xml:lang="en">Starodubtseva M. N. Mechanical properties of cells and ageing. Ageing Research Reviews. 2011, vol. 10, no. 1, pp. 16–25. https://doi.org/10.1016/j.arr.2009.10.005</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Extracellular matrix stiffness –The central cue for skin fibrosis / K. Wang, D. Wen, X. Xu [et al.] // Frontiers in Molecular Biosciences. – 2023. – Vol. 10. – Art. 1132353. https://doi.org/10.3389/fmolb.2023.1132353</mixed-citation><mixed-citation xml:lang="en">Wang K., Wen D., Xu X., Zhao R., Jiang F., Yuan S., Zhang Y., Gao Y., Li Q. Extracellular matrix stiffness – The central cue for skin fibrosis. Frontiers in Molecular Biosciences, 2023, vol. 10, art. 1132353. https://doi: 10.3389/fmolb.2023.1132353</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Галченко, Л. И. Лучевые осложнения при лучевой терапии: учеб. пособие для студентов / Л. И. Галченко, В. В. Маточкин. – Иркутск: Иркут. гос. мед. ун-т, 2015. – 30 с.</mixed-citation><mixed-citation xml:lang="en">Galchenko L. I., Matochkin V. V. Radiation complications during radiation therapy: a textbook for students. Irkutsk, Irkutsk State Medical University, 2015. 30 p. (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Radiation-induced fibrosis: mechanisms and implications for therapy / J. F. Straub, L. New, C. D. Hamilton [et al.] // Journal of Cancer Research and Clinical Oncology. – 2015. – Vol. 141, N 11. – P. 1985–1994. https://doi.org/10.1007/s00432015-1974-6</mixed-citation><mixed-citation xml:lang="en">Straub J. F., New L., Hamilton C. D., Lominska C., Shnayder Y., Thomas S. M. Radiation-induced fibrosis: mechanisms and implications for therapy. Journal of Cancer Research and Clinical Oncology, 2015, vol. 141, no. 11, pp. 1985–1994. https://doi.org/10.1007/s00432-015-1974-6</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Fuentes-Mateos, R. Optimized Protocol for Isolation and Culture of Murine Neonatal Primary Lung Fibroblasts / R. Fuentes-Mateos, E. Santos, A. Fernandez-Medarde // Methods and Protocols. – 2023. – Vol. 6, N 1. – Art. 14. https://doi.org/10.3390/mps6010014</mixed-citation><mixed-citation xml:lang="en">Fuentes-Mateos R., Santos E., Fernandez-Medarde A. Optimized Protocol for Isolation and Culture of Murine Neonatal Primary Lung Fibroblasts. Methods and Protocols, 2023, vol. 6, no. 1, art. 14. https://doi.org/10.3390/mps6010014</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Deguchi, S. Biomechanical properties of actin stress fibers of non-motile cells / S. Deguchi, M. Sato // Biorheology. – 2009. – Vol. 46, N 2. – P. 93–105. https://doi.org/10.3233/bir-2009-0528</mixed-citation><mixed-citation xml:lang="en">Deguchi S., Sato M. Biomechanical properties of actin stress fibers of non-motile cells. Biorheology, 2009, vol. 46, no. 2, pp. 93–105. https://doi.org/10.3233/bir-2009-0528</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Unraveling SSc pathophysiology; The myofibroblast / A. van Caam, M. Vonk, F. van den Hoogen [et al.] // Frontiers in Immunology. – 2018. – Vol. 9. – Art. 2452. https://doi.org/10.3389/fimmu.2018.02452</mixed-citation><mixed-citation xml:lang="en">Van Caam A., Vonk M., van den Hoogen F., van Lent P., van der Kraan P. Unraveling SSc pathophysiology; The myofibroblast. Frontiers in Immunology, 2018, vol. 9, art. 2452. https://doi: 10.3389/fimmu.2018.02452</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Mechanical communication in fibrosis progression / Y. Long, Y. Niu, K. Liang, Y. Du // Trends in Cell Biology. – 2022. – Vol. 32, N 1. – P. 70–90. https://doi.org/10.1016/j.tcb.2021.10.002</mixed-citation><mixed-citation xml:lang="en">Long Y., Niu Y., Liang K., Du Y. Mechanical communication in fibrosis progression. Trends in Cell Biology, 2022, vol. 32, no. 1, pp. 70–90. https://doi.org/10.1016/j.tcb.2021.10.002</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Fisher, T. Effect of nuclear stiffness on cell mechanics and migration of human breast cancer cells / T. Fisher, A. Hayn, C. T. Mierke // Frontiers in Cell and Developmental Biology. – 2020. – Vol. 8. – Art. 393. https://doi.org/10.3389/fcell.2020.00393</mixed-citation><mixed-citation xml:lang="en">Fisher T., Hayn A., Mierke C. T. Effect of nuclear stiffness on cell mechanics and migration of human breast cancer cells. Frontiers in Cell and Developmental Biology, 2020, vol. 8, art. 393. https://doi: 10.3389/fcell.2020.00393</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Nuclear Lamin-A Scales with Tissue Stiffness and Enhances Matrix-Directed Differentiation / J. Swift, I. L. Ivanovska, A. Buxboim [et al.] // Science. – 2013. – Vol. 341, N 6149. – Art. 1240104. https://doi.org/10.1126/science.1240104</mixed-citation><mixed-citation xml:lang="en">Swift J., Ivanovska I. L., Buxboim A., Harada T., Dingal P. C. D. P., Pinter J., Pajerowski J. D., Splinler K. R., Shin J.-W., Tewari M., Rehfeldt F., Speicher D. W., Discher D. E Nuclear Lamin-A Scales with Tissue Stiffness and Enhances MatrixDirected Differentiation. Science, 2013, vol. 341, no. 6149, art. 1240104. https://doi.org/10.1126/science.1240104</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Nuclear Stiffness Decreases with Disruption of the Extracellular Matrix in Living Tissues / K. P. McCreery, X. Xu, A. K. Scott [et al.] // Small. – 2021. – Vol. 17, N 6. – Art. e2006699. https://doi.org/10.1002/smll.202006699</mixed-citation><mixed-citation xml:lang="en">McCreery K. P., Xu X., Scott A. K., Fajrial A. K., Calve S., Ding X., Neu C. P. Nuclear Stiffness Decreases with Disruption of the Extracellular Matrix in Living Tissues. Small, 2021, vol. 17, no. 6, art. e2006699. https://doi.org/10.1002/smll.202006699</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Dahl, K. N. Nuclear Shape, Mechanics, and Mechanotransduction / K. N. Dahl, A. J. S. Ribeiro, J. Lammerding // Circulation Research. – 2008. – Vol. 102, N 11. – P. 1307–1318. https://doi.org/10.1161/circresaha.108.173989</mixed-citation><mixed-citation xml:lang="en">Dahl K. N., Ribeiro A. J. S., Lammerding J. Nuclear Shape, Mechanics, and Mechanotransduction. Circulation Research, 2008, vol. 102, no. 11, pp. 1307–1318. https://doi.org/10.1161/circresaha.108.173989</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
