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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">tiblj</journal-id><journal-title-group><journal-title xml:lang="ru">Туберкулез и болезни легких</journal-title><trans-title-group xml:lang="en"><trans-title>Tuberculosis and Lung Diseases</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2075-1230</issn><issn pub-type="epub">2542-1506</issn><publisher><publisher-name>Медицинские знания и технологии</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.58838/2075-1230-2023-101-1S-57-63</article-id><article-id custom-type="elpub" pub-id-type="custom">tiblj-1757</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 СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Взаимодействие мезенхимальных стромальных клеток и микобактерий туберкулеза in vitro</article-title><trans-title-group xml:lang="en"><trans-title>Interaction between mesenchymal stromal cells and tuberculous mycobacteria in vitro</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3481-3793</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Белогородцев</surname><given-names>С. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Belogorodtsev</surname><given-names>S. N.</given-names></name></name-alternatives><bio xml:lang="ru"><sec><title>Белогородцев Сергей Николаевич, К.м.н., ведущий научный сотрудник  лабораторно-экспериментального отдела</title><p>630040, Новосибирск, ул. Охотская, д. 81А </p></sec></bio><bio xml:lang="en"><p>Sergey N. Belogorodtsev, Candidate of Medical Sciences, Leading Researcher of Laboratory Experimental Department</p><p>81a, Okhotskaya St., Novosibirsk, 630040 </p></bio><email xlink:type="simple">s.belogorodtsev@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/0000-0003-4897-8676</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лыков</surname><given-names>А. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Lykov</surname><given-names>A. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лыков Александр Петрович,  К.м.н., старший научный сотрудник  лабораторно-экспериментального отдела </p><p>630040, Новосибирск, ул. Охотская, д. 81А </p></bio><bio xml:lang="en"><p>Aleksandr P. Lykov, Candidate of Medical Sciences, Senior Researcher of Laboratory Experimental Department </p><p>81a, Okhotskaya St., Novosibirsk, 630040 </p></bio><email xlink:type="simple">aplykov2@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/0000-0003-2724-9546</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Немкова</surname><given-names>Е. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Nemkova</surname><given-names>E. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Немкова Елизавета Кирилловна  Младший научный сотрудник  лабораторно-экспериментального отдела </p><p>630040, Новосибирск, ул. Охотская, д. 81А </p></bio><bio xml:lang="en"><p>Elizaveta K. Nemkova, Junior Researcher of Children  and Adolescents Department </p><p>81a, Okhotskaya St., Novosibirsk, 630040 </p></bio><email xlink:type="simple">elizaveta.nemkova@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/0000-0002-3036-9795</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шварц</surname><given-names>Я. Ш.</given-names></name><name name-style="western" xml:lang="en"><surname>Schwartz</surname><given-names>Ya. Sh.</given-names></name></name-alternatives><bio xml:lang="ru"><sec><title>Шварц Яков Шмульевич, Д.м.н., заместитель директора по научной работе  </title><p>630040, Новосибирск, ул. Охотская, д. 81А </p></sec></bio><bio xml:lang="en"><p>Yakov Sh. Schwartz, Doctor of Medical Sciences, Deputy Director for Research</p><p>81a, Okhotskaya St., Novosibirsk, 630040 </p></bio><email xlink:type="simple">yshschwartz@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">ФБГУ «Новосибирский научно-исследовательский институт туберкулеза» МЗ РФ<country>Россия</country></aff><aff xml:lang="en">Novosibirsk Tuberculosis Research Institute, Russian Ministry of Health<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>27</day><month>10</month><year>2023</year></pub-date><volume>101</volume><issue>1S</issue><fpage>57</fpage><lpage>63</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Белогородцев С.Н., Лыков А.П., Немкова Е.К., Шварц Я.Ш., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Белогородцев С.Н., Лыков А.П., Немкова Е.К., Шварц Я.Ш.</copyright-holder><copyright-holder xml:lang="en">Belogorodtsev S.N., Lykov A.P., Nemkova E.K., Schwartz Y.S.</copyright-holder><license 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://www.tibl-journal.com/jour/article/view/1757">https://www.tibl-journal.com/jour/article/view/1757</self-uri><abstract><sec><title>Цель исследования</title><p>Цель исследования: в эксперименте in vitro сравнивали фагоцитарные показатели мезенхимальных стромальных клеток (МСК) и макрофагов в отношении микобактерий туберкулеза, оценивали способность МСК и макрофагов лизировать микобактерии или поддерживать их внутриклеточный рост, их влияние на формирование фенотипической лекарственной устойчивости микобактерий, а также влияние микобактерий туберкулеза на тип клеточной гибели МСК..</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. В работе были использованы линейные мыши Balb/c, самцы возрастом от 6 до 8 недель. МСК костного мозга получали из бедренных и большеберцовых костей путем дальнейшего культивирования, перитонеальные макрофаги элиситировали 4% альфа-глюканом. Внутриклеточное содержание микобактерий подсчитывали с помощью конфокального микроскопа при увеличении х 400. Определение чувствительности микобактерий к изониазиду и формирование фенотипической лекарственной устойчивости после культивирования МСК и макрофагов с патогеном на плотной питательной среде Левенштейна-Йенсен оценивали путем подсчета КОЕ. Количество апоптотических и некротизированных МСК и макрофагов определяли через 5 суток после инфицирования, используя проточный цитофлуориметр.</p></sec><sec><title>Результаты</title><p>Результаты. На 1-е сутки общее количество фагоцитированных МБТ, как и количество фагоцитарно-активных макрофагов, превышает соответствующие показатели для МСК более чем в 2 раза. МСК фагоцитируют микобактерии туберкулеза в меньшем количестве, но размножение патогена в них происходит активнее: количество КОЕ после 7-ми суток культивирования клеток с патогеном превышало соответствующий показатель после 24 часов культивирования почти в 50 раз. В культурах инфицированных МСК, культивируемых в течение 7 суток, независимо от присутствия изониазида отмечается бурный рост микобактерий туберкулеза. В культуре макрофагов на 5-е сутки после инфицирования микобактериями туберкулеза количество клеток в состоянии некроза было в 2,7 раза больше, чем неинфицированных некротизированных макрофагов, но количество апототических клеток в этих группах различалось незначительно. В культуре МСК инфицированных клеток в состоянии некроза было в 8,5 раз больше, чем неинфицированных некротизированных МСК, и число некротизированных МСК в 4,5 раза превосходило число МСК с апоптозом, тогда как в культуре инфицированных макрофагов число некротизированных клеток было таким же, как число апоптотических клеток. Обработка изониазидом МСК, в отличие от макрофагов, не сдерживала внутриклеточную пролиферацию МБТ.</p></sec><sec><title>Заключение</title><p>Заключение. МСК обладают способностью фагоцитировать микобактерии, но делают это менее активно, чем макрофаги и, в отличие от макрофагов, не способны сдерживать размножение микобактерий туберкулеза. Микобактерии обладают фенотипической лекарственной устойчивостью в МСК. В МСК при инфицировании микобактериями туберкулеза отмечается выраженный сдвиг типа клеточной гибели в сторону некроза, что может приводить к диссеминации патогена и развитию локальных деструктивных изменений.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>The objective</title><p>The objective: in an in vitro experiment, we compared phagocytic parameters of mesenchymal stromal cells (MSCs) and macrophages to tuberculous mycobacteria, assessed the ability of MSCs and macrophages to lyse mycobacteria or maintain their intracellular growth, their effect on formation of phenotypic drug resistance of mycobacteria, as well as the effect of tuberculous mycobacteria on the type of MSCs cell death.</p></sec><sec><title>Subjects and Methods</title><p>Subjects and Methods. Balb/c male mice, aged 6 to 8 weeks, were used in the experiment. Bone marrow MSCs were obtained from femurs and tibias by further cultivation, peritoneal macrophages were elicited with 4% alpha-glucan. The intracellular content of mycobacteria was counted using a confocal microscope with x 400 magnification. Susceptibility of mycobacteria to isoniazid and development of phenotypic drug resistance after culturing MSCs and macrophages with MTB on Lowenstein–Jensen medium was assessed by counting CFU. In 5 days after the infection, the number of apoptotic and necrotic MSCs and macrophages was determined by a flow cytometer.</p></sec><sec><title>Results</title><p>Results. On Day 1, the total number of phagocytosed MTB, as well as the number of phagocytic-active macrophages, exceeds the corresponding figures for MSCs more than twice. MSCs phagocytize tuberculous mycobacteria in a smaller amount, but MTB reproduces in them more actively: the number of CFU after 7 days of cell cultivation with MTB exceeded the corresponding parameter by almost 50 times after 24 hours of cultivation. In cultures of infected MSCs cultivated for 7 days, regardless of the presence of isoniazid, there was a rapid growth of tuberculous mycobacteria. On Day 5 after infection of macrophage culture with tuberculous mycobacteria, the number of necrotic cells was 2.7 times greater than that of uninfected necrotic macrophages, but the number of apototic cells in these groups differed slightly. In the culture of MSCs, there were 8.5 times more infected nectrotic cells versus uninfected necrotic MSCs, and the number of necrotic MSCs was 4.5 times higher than the number of MSCs with apoptosis, while in the culture of infected macrophages, the number of necrotic cells was the same as number of apoptotic cells. Unlike macrophages, treatment of MSCs with isoniazid did not inhibit the intracellular proliferation of MTB.</p></sec><sec><title>Conclusion</title><p>Conclusion. MSCs have the ability to phagocytose mycobacteria, but they do it less actively than macrophages and, unlike macrophages, they are not able to restrain the reproduction of tuberculous mycobacteria. Mycobacteria have phenotypic drug resistance in MSCs. In MSCs, when infected with tuberculous mycobacteria, there is a pronounced shift towards necrosis in the type of cell death, which can lead to dissemination of MTB and development of local destructive changes.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>стромальные клетки</kwd><kwd>некроз</kwd><kwd>апоптоз</kwd><kwd>фагоцитоз</kwd><kwd>туберкулез</kwd></kwd-group><kwd-group xml:lang="en"><kwd>stromal cells</kwd><kwd>necrosis</kwd><kwd>apoptosis</kwd><kwd>phagocytosis</kwd><kwd>tuberculosis</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Adigun R., Basit H., Murray J. Necrosis. 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