<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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">vestift</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия физико-технических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus. Physical-technical series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8358</issn><issn pub-type="epub">2524-244X</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">10.29235/1561-8358-2025-70-3-198-208</article-id><article-id custom-type="elpub" pub-id-type="custom">vestift-905</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>Статьи</subject></subj-group></article-categories><title-group><article-title>АСМ-анализ неоднородности механических свойств поверхности фибробластов после радиационного воздействия</article-title><trans-title-group xml:lang="en"><trans-title>AFM analysis of spatial elastic modulus distribution of fibroblast surface after radiation exposure.</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 – научный сотрудник</p><p>ул. Федюнинского, 4, 246007, Гомель</p></bio><bio xml:lang="en"><p>Nastassia M. Shkliarava – Researcher </p><p>4, Fedyuninski St., 246007, Gomel</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 – доктор биологических наук, доцент </p><p>ул. Ланге, 5, 246000, Гомель,</p></bio><bio xml:lang="en"><p>Maria N. Starodubtseva – Dr. Sci. (Biology), Associate Professor, Professor</p><p>5, Lange St., 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>2025</year></pub-date><pub-date pub-type="epub"><day>14</day><month>10</month><year>2025</year></pub-date><volume>70</volume><issue>3</issue><fpage>198</fpage><lpage>208</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Шклярова А.Н., Стародубцева М.Н., 2025</copyright-statement><copyright-year>2025</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://vestift.belnauka.by/jour/article/view/905">https://vestift.belnauka.by/jour/article/view/905</self-uri><abstract><p>Механические свойства клеток, определяемые в основном свойствами и структурой цитоскелета, неоднородны на микро- и наномасштабах. Пространственное распределение таких механических параметров, как модуль упругости и сила адгезии, по поверхности фибробластов характеризует их механический фенотип. С по- мощью картирования механических свойств с использованием режима Force Volume атомно-силовой микроскопии и применения статистических методов анализа (моделирование распределений параметров двухкомпонентной Гауссовой смесью и кластеризация данных) установлены закономерности изменения пространственного распределения механических свойств поверхности фибробластов первичных культур, выделенных из легкого необлученных и облученных 14-месячных крыс Wistar и 3-недельного постлучевого периода. После облучения изменяется доля участков поверхности с повышенными упругими свойствами и сниженными адгезионными свойствами, соответствующих участкам плазмалеммы над структурами стрессовых волокон. Полученные данные свидетельствуют о том, что облучение как в низких (0,1 Гр), так и в высоких (1 и 15 Гр) дозах вызывает изменения механического фенотипа фибробластов в течение раннего отдаленного постлучевого периода. Эти характерные изменения в механике фибробластов могут представлять собой ранние биомаркеры радиационно-индуцированных осложнений, таких как радиационный фиброз.</p></abstract><trans-abstract xml:lang="en"><p>The mechanical properties of cells, determined mainly by the properties and structure of the cytoskeleton, are heterogeneous at the micro- and nanoscale. The spatial distribution of mechanical parameters such as elastic modulus and adhesion force over the surface of fibroblasts characterizes their mechanical phenotype. By mapping mechanical properties using the Force Volume mode of atomic force microscopy and using statistical analysis methods (modeling parameter distributions with a two-component Gaussian mixture and clustering data), patterns of changes in the spatial distribution of the mechanical properties of the fibroblast surface of primary cultures isolated from the lungs of non-irradiated and irradiated 14-month-old Wistar rats and a 3-week post-radiation period were established. After irradiation, the proportion of surface areas with increased elastic properties and reduced adhesive properties corresponding to the plasmalemma areas above the structures of stress fibers changes. The findings indicate that irradiation at both low (0.1 Gy) and high (1 and 15 Gy) doses induces alterations in the mechanical phenotype of fibroblasts during the early late post-radiation period. These characteristic modifications in fibroblast mechanics may represent early biomarkers of radiation-induced complications, such as radiation fibrosis.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>АСМ</kwd><kwd>фибробласты</kwd><kwd>рентгеновское излучение</kwd><kwd>модуль упругости</kwd><kwd>адгезия</kwd><kwd>стрессовые волокна</kwd></kwd-group><kwd-group xml:lang="en"><kwd>AFM</kwd><kwd>fibroblasts</kwd><kwd>X-rays</kwd><kwd>elastic modulus</kwd><kwd>adhesion</kwd><kwd>stress fibers</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">работа выполнена в рамках задания «Разработать критерии оценки радиационно-индуциро- ванных изменений ткани внутренней среды, основанной на анализе структуры и механических свойств клеточ- ного компонента на моделях in vitro и in vivo» «Природные ресурсы и окружающая среда 3.01» Государственной программы научных исследований «Природные ресурсы и окружающая среда» на 2021–2025 годы, подпрограм- ма 3 «Радиация и биологические системы» (№ ГР 20210231 от 15.03.2021).</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” on 2021–2025, subprogram 3 “Radiation and biological systems” (no. GR 20210231 dated 03.15.2021).</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">Suzuki, M. Ionizing radiation induces premature senescence in human normal fibroblasts through a p53-dependent pathway / M. Suzuki, D. A. Boothman, J. M. Sedivy // Experimental Cell Research. – 2001. – Vol. 265, № 2. – P. 332–341. https://doi.org/10.1006/excr.2001.5184</mixed-citation><mixed-citation xml:lang="en">Suzuki, M. Ionizing radiation induces premature senescence in human normal fibroblasts through a p53-dependent pathway / M. Suzuki, D. A. Boothman, J. M. Sedivy // Experimental Cell Research. – 2001. – Vol. 265, № 2. – P. 332–341. https://doi.org/10.1006/excr.2001.5184</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</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, № 11. – P. 1985–1994. https:// doi.org/10.1007/s00432-015-1974-6</mixed-citation><mixed-citation xml:lang="en">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, № 11. – P. 1985–1994. https:// doi.org/10.1007/s00432-015-1974-6</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Atomic force microscopy probing of cell elasticity / T. G. Kuznetsova, M. N. Starodubtseva, N. I. Yegorenkov [et al.] // Micron. – 2007. – Vol. 38, № 8. – P. 824–833. https://doi.org/10.1016/j.micron.2007.06.011</mixed-citation><mixed-citation xml:lang="en">Atomic force microscopy probing of cell elasticity / T. G. Kuznetsova, M. N. Starodubtseva, N. I. Yegorenkov [et al.] // Micron. – 2007. – Vol. 38, № 8. – P. 824–833. https://doi.org/10.1016/j.micron.2007.06.011</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</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, № 2. – P. 93–105. https://doi.org/10.3233/BIR-2009-0528</mixed-citation><mixed-citation xml:lang="en">Deguchi, S. Biomechanical properties of actin stress fibers of non-motile cells / S. Deguchi, M. Sato // Biorheology. – 2009. – Vol. 46, № 2. – P. 93–105. https://doi.org/10.3233/BIR-2009-0528</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Myofibroblasts and mechano-regulation of connective tissue remodelling / J. J. Tomasek, G. Gabbiani, B. Hinz [et al.] // Nature Reviews Molecular Cell Biology. – 2002. – Vol. 3, № 5. – P. 349–363. https://doi.org/10.1038/nrm809</mixed-citation><mixed-citation xml:lang="en">Myofibroblasts and mechano-regulation of connective tissue remodelling / J. J. Tomasek, G. Gabbiani, B. Hinz [et al.] // Nature Reviews Molecular Cell Biology. – 2002. – Vol. 3, № 5. – P. 349–363. https://doi.org/10.1038/nrm809</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Pellegrin, S. Actin stress fibres / S. Pellegrin, H. Mellor // Journal of Cell Science. – 2007. – Vol. 120, № 20. – P. 3491–3499. https://doi.org/10.1242/jcs.018473</mixed-citation><mixed-citation xml:lang="en">Pellegrin, S. Actin stress fibres / S. Pellegrin, H. Mellor // Journal of Cell Science. – 2007. – Vol. 120, № 20. – P. 3491–3499. https://doi.org/10.1242/jcs.018473</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Primary culture of lung fibroblasts from hyperoxia-exposed rats and a proliferative characteristics study / S. M. Zhao, H. M. Wu, M. L. Cao, D. Han // Cytotechnology. – 2018. – Vol. 70, № 2. – P. 751–760. https://doi.org/10.1007/s10616-017-0179-z</mixed-citation><mixed-citation xml:lang="en">Primary culture of lung fibroblasts from hyperoxia-exposed rats and a proliferative characteristics study / S. M. Zhao, H. M. Wu, M. L. Cao, D. Han // Cytotechnology. – 2018. – Vol. 70, № 2. – P. 751–760. https://doi.org/10.1007/s10616-017-0179-z</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Hinz, B. Mechanisms of force generation and transmission by myofibroblasts / B. Hinz, G. Gabbiani // Current Opinion in Biotechnology. – 2003. – Vol. 14, № 5. – P. 538–546. https://doi.org/10.1016/j.copbio.2003.08.006</mixed-citation><mixed-citation xml:lang="en">Hinz, B. Mechanisms of force generation and transmission by myofibroblasts / B. Hinz, G. Gabbiani // Current Opinion in Biotechnology. – 2003. – Vol. 14, № 5. – P. 538–546. https://doi.org/10.1016/j.copbio.2003.08.006</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Cytoskeleton Response to Ionizing Radiation: A Brief Review on Adhesion and Migration Effects / G. La Verde, V. Artiola, V. Panzetta [et al.] // Biomedicines. – 2021. – Vol. 9, № 9. – Art. ID 1102. https://doi.org/10.3390/biomedicines9091102</mixed-citation><mixed-citation xml:lang="en">Cytoskeleton Response to Ionizing Radiation: A Brief Review on Adhesion and Migration Effects / G. La Verde, V. Artiola, V. Panzetta [et al.] // Biomedicines. – 2021. – Vol. 9, № 9. – Art. ID 1102. https://doi.org/10.3390/biomedicines9091102</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>
