<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE root>
<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">Russian Journal of Physiology</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Physiology</journal-title><trans-title-group xml:lang="ru"><trans-title>Российский физиологический журнал им. И.М. Сеченова</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0869-8139</issn><issn publication-format="electronic">2658-655X</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">691430</article-id><article-id pub-id-type="doi">10.7868/S2658655X25070112</article-id><article-id pub-id-type="edn">mvyawm</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>EXPERIMENTAL ARTICLES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ЭКСПЕРИМЕНТАЛЬНЫЕ 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 Peculiarities of Neutrophils Migration Processes in the Flow System</article-title><trans-title-group xml:lang="ru"><trans-title>Особенности миграционных процессов нейтрофилов в проточной системе</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Pleskova</surname><given-names>S. N.</given-names></name><name xml:lang="ru"><surname>Плескова</surname><given-names>С. Н.</given-names></name></name-alternatives><email>pleskova@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Bezrukov</surname><given-names>N. A.</given-names></name><name xml:lang="ru"><surname>Безруков</surname><given-names>Н. А.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gorshkova</surname><given-names>E. N.</given-names></name><name xml:lang="ru"><surname>Горшкова</surname><given-names>Е. Н.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Novikov</surname><given-names>D. V.</given-names></name><name xml:lang="ru"><surname>Новиков</surname><given-names>Д. В.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Otstavnova</surname><given-names>E. V.</given-names></name><name xml:lang="ru"><surname>Отставнова</surname><given-names>Е. В.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Lobachevsky Nizhny Novgorod State University</institution></aff><aff><institution xml:lang="ru">Нижегородский государственный университет им. Н.И. Лобачевского</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Nizhny Novgorod State Technical University named after R.E. Alekseev</institution></aff><aff><institution xml:lang="ru">Нижегородский государственный технический университет им. Р.Е. Алексеева</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Nizhny Novgorod Research Institute of Epidemiology and Microbiology named after Academician I.N. Blokhina</institution></aff><aff><institution xml:lang="ru">Нижегородский научно-исследовательский институт эпидемиологии и микробиологии им. академика И.Н. Блохиной</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-07-15" publication-format="electronic"><day>15</day><month>07</month><year>2025</year></pub-date><volume>111</volume><issue>7</issue><issue-title xml:lang="en">VOL 111, NO7 (2025)</issue-title><issue-title xml:lang="ru">ТОМ 111, №7 (2025)</issue-title><fpage>1185</fpage><lpage>1197</lpage><history><date date-type="received" iso-8601-date="2025-09-26"><day>26</day><month>09</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><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2025-07-23"/></permissions><self-uri xlink:href="https://journals.eco-vector.com/0869-8139/article/view/691430">https://journals.eco-vector.com/0869-8139/article/view/691430</self-uri><abstract xml:lang="en"><p>A flow system model simulating the hemodynamic process in capillaries was created to study neutrophil migration. It was found that the general patterns of neutrophil behavior (aggregate formation, formation of neutrophil tethers and migration of neutrophils along intercellular contacts of endothelial cells) are reproduced both in the control (system without chemoattractants) and in the experiment (system with low-molecular chemoattractants of bacteria), however, in the case of S. aureus and P. mirabilis using as a chemoattractant, the number of aggregates and neutrophil tethers increases statistically significantly (p &lt; 0.05). Aggregates correspond to the swarming phenomenon in the transendothelial migration system and help limit the zone of bacterial damage. And neutrophil tethers cause a stop in hemodynamic movement and can cause either a transition to migration or be precursors to the formation of elongated neutrophil-derived structures with high antibacterial potential. Thus, all the observed phenomena contribute to the implementation of the protective function in case of bacteremia.</p></abstract><trans-abstract xml:lang="ru"><p>Для исследования миграции нейтрофилов создана оригинальная модель проточной системы, имитирующая гемодинамический процесс в капиллярах. При использовании этой модели выявлено, что общие паттерны поведения нейтрофилов (образование агрегатов, формирование “нейтрофильных привязей” и миграция нейтрофилов по межклеточным контактам эндотелиоцитов) воспроизводятся и в контроле (система без хемоаттрактантов), и в опыте (система с низкомолекулярными хемоаттрактантами бактерий). Однако в случае использования в качестве хемоаттрактанта S. aureus и P. mirabilis количество агрегатов и “нейтрофильных привязей” увеличивается статистически значимо (р &lt; 0.05). Агрегаты соответствуют феномену роения в системе трансэндотелиальной миграции и способствуют ограничению зоны бактериального поражения. А “нейтрофильные привязи” замедляют гемодинамическое движение клеток и могут либо вызывать переход к миграции, либо являться предшественниками формирования удлиненных нейтрофил-производных структур, обладающих высоким антибактериальным потенциалом. Таким образом, все наблюдаемые феномены способствуют реализации защитной функции в случае бактериемии.</p></trans-abstract><kwd-group xml:lang="en"><kwd>migration</kwd><kwd>neutrophils</kwd><kwd>chemoattractants</kwd><kwd>endothelial cells</kwd><kwd>blood flow</kwd><kwd>neutrophil tethers</kwd><kwd>aggregation</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>миграция</kwd><kwd>нейтрофилы</kwd><kwd>хемоаттрактанты</kwd><kwd>эндотелиоциты</kwd><kwd>кровоток</kwd><kwd>“нейтрофильные привязи”</kwd><kwd>агрегация</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Kolaczkowska E, Kubes P (2013) Neutrophil recruitment and function in health and inflammation. Nature reviews. Immunology 13: 159–175. https://doi.org/10.1038/nri3399</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Voisin M-B, Nourshargh S (2019) Neutrophil trafficking to lymphoid tissues: physiological and pathological implications. J Pathol 247: 662–671. https://doi.org/10.1002/path.5227</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Li Y, Wang W, Yang F, Xu Y, Feng C, Zhao Y (2019) The regulatory roles of neutrophils in adaptive immunity. Cell Commun Signal 17: 147. https://doi.org/10.1186/s12964-019-0471-y</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>Ley K, Hoffman HM, Kubes P, Cassatella MA, Zychlinsky A, Hedrick CC, Catz SD (2018) Neutrophils: New insights and open questions. Sci Immunol 3: eaat4579. https://doi.org/10.1126/sciimmunol.aat4579</mixed-citation></ref><ref id="B5"><label>5.</label><mixed-citation>Ley K, Laudanna C, Cybulsky MI, Nourshargh S (2007) Getting to the site of inflammation: the leukocyte adhesion cascade updated. Nat Rev Immunol 7: 678–689. https://doi.org/10.1038/nri2156</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>Buffone A, Hammer DA, Kim SHJ, Anderson NR, Mochida A, Lee DH, Guin S (2023) Not All (Cells) Who Wander Are Lost: Upstream Migration as a Pervasive Mode of Amoeboid Cell Motility. Front Cell Dev Biol 11: 1291201. https://doi.org/10.3389/fcell.2023.1291201</mixed-citation></ref><ref id="B7"><label>7.</label><mixed-citation>Pleskova SN, Bezrukov NA, Gorshkova EN, Bobyk SZ, Lazarenko EV (2024) A Study of EA.hy926 Endothelial Cells Using Atomic Force and Scanning Ion Conductance Microscopy. Cell Tiss Biol 18: 36–44. https://doi.org/10.1134/S1990519X24010073</mixed-citation></ref><ref id="B8"><label>8.</label><mixed-citation>Pleskova SN, Bezrukov NA, Gorshkova EN, Bobyk SZ, Lazarenko EV (2023) Exploring the Process of Neutrophil Transendothelial Migration Using Scanning Ion-Conductance Microscopy. Cells 12: 1806. https://doi.org/10.3390/cells12131806</mixed-citation></ref><ref id="B9"><label>9.</label><mixed-citation>Cugno A, Marki A, Ley K (2021) Biomechanics of Neutrophil Tethers. Life (Basel) 11: 515. https://doi.org/10.3390/life11060515</mixed-citation></ref><ref id="B10"><label>10.</label><mixed-citation>Lammermann T, Afonso PV, Angermann BR, Wang JM, Kastenmüller W, Parent CA, Germain RN (2013) Neutrophil swarms require LTB4 and integrins at sites of cell death in vivo. Nature 498: 371–375. https://doi.org/10.1038/nature12175</mixed-citation></ref><ref id="B11"><label>11.</label><mixed-citation>Lee EKS, Gillrie MR, Li L, Arnason JW, Kim JH, Babes L, Lou Y, Sanati-Nezhad A, Kyei SK, Kelly MM, Mody CH, Ho M, Yipp BG (2018) Leukotriene B4-Mediated Neutrophil Recruitment Causes Pulmonary Capillaritis during Lethal Fungal Sepsis. Cell Host Microbe 23: 121–133.e4. https://doi.org/10.1016/j.chom.2017.11.009</mixed-citation></ref><ref id="B12"><label>12.</label><mixed-citation>Pleskova SN, Kriukov RN, Gorshkova EN, Boryakov AV (2019) Characteristics of quantum dots phagocytosis by neutrophil granulocytes. Heliyon 5: e01439. https://doi.org/10.1016/j.heliyon.2019.e01439</mixed-citation></ref><ref id="B13"><label>13.</label><mixed-citation>Yang P, Li Y, Xie Y, Liu Y (2019) Different Faces for Different Places: Heterogeneity of Neutrophil Phenotype and Function. J Immunol Res 2019: 8016254. https://doi.org/10.1155/2019/8016254</mixed-citation></ref><ref id="B14"><label>14.</label><mixed-citation>Kienle K, Glaser KM, Eickhoff S, Mihlan M, Knopper K, Reategui E, Epple MW, Gunzer M, Baumeister R, Tarrant TK, Germain RN, Irimia D, Kastenmuller W, Lammermann T (2021) Neutrophils self-limit swarming to contain bacterial growth in vivo. Science 372: eabe7729. https://doi.org/10.1126/science.abe7729</mixed-citation></ref><ref id="B15"><label>15.</label><mixed-citation>Kunkel EJ, Dunne JL, Ley K (2000) Leukocyte Arrest During Cytokine-Dependent Inflammation In Vivo. J Immunol 164: 3301–3308. https://doi.org/10.4049/jimmunol.164.6.3301</mixed-citation></ref><ref id="B16"><label>16.</label><mixed-citation>Girdhar G, Shao JY (2007) Simultaneous Tether Extraction from Endothelial Cells and Leukocytes: Observation, Mechanics, and Significance. Biophys J 93: 4041–4052. https://doi.org/10.1529/biophysj.107.109298</mixed-citation></ref><ref id="B17"><label>17.</label><mixed-citation>Chen Y, Yao DK, Shao JY (2010) The Constitutive Equation for Membrane Tether Extraction. Ann Biomed Eng 38: 3756–3765. https://doi.org/10.1007/s10439-010-0117-0</mixed-citation></ref><ref id="B18"><label>18.</label><mixed-citation>Marki A, Gutierrez E, Mikulski Z, Groisman A, Ley K (2016) Microfluidics-based side view flow chamber reveals tether-to-sling transition in rolling neutrophils. Sci Rep 6: 28870. https://doi.org/10.1038/srep28870</mixed-citation></ref></ref-list></back></article>
