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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">sechenov</journal-id><journal-title-group><journal-title xml:lang="en">Sechenov Medical Journal</journal-title><trans-title-group xml:lang="ru"><trans-title>Сеченовский вестник</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2218-7332</issn><issn pub-type="epub">2658-3348</issn><publisher><publisher-name>Сеченовский Университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.47093/2218-7332.2023.918.13</article-id><article-id custom-type="elpub" pub-id-type="custom">sechenov-1001</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="en"><subject>CELL BIOLOGY, CYTOLOGY, HISTOLOGY</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>КЛЕТОЧНАЯ БИОЛОГИЯ, ЦИТОЛОГИЯ, ГИСТОЛОГИЯ</subject></subj-group></article-categories><title-group><article-title>Morphofunctional features in mice treated by low and high Hsp70 doses</article-title><trans-title-group xml:lang="ru"><trans-title>Морфофункциональные изменения у мышей после однократного введения высоких и низких доз Hsp70</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7782-3468</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пьявченко</surname><given-names>Г. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Piavchenko</surname><given-names>G. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пьявченко Геннадий Александрович - канд. мед. наук, доцент кафедры анатомии и гистологии человека.</p><p>ул. Трубецкая, д. 8, стр. 2, Москва, 119048</p></bio><bio xml:lang="en"><p>Gennadii A. Piavchenko - Cand. of Sci. (Medicine), Associate Professor, Human Anatomy and Histology Department, Sechenov First Moscow State Medical University (Sechenov University).</p><p>8/2, Trubetskaya str., Moscow, 119048</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5604-0461</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Венедиктов</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Venediktov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Венедиктов Артем Андреевич - аспирант, ассистент кафедры анатомии и гистологии человека.</p><p>ул. Трубецкая, д. 8, стр. 2, Москва, 119048</p><p>Тел.: +7 (980) 019-08-63</p></bio><bio xml:lang="en"><p>Artem A. Venediktov - Postgraduate student, Assistant Professor, Human Anatomy and Histology Department, Sechenov First Moscow State Medical University (Sechenov University).</p><p>8/2, Trubetskaya str., Moscow, 119048</p><p>Tel.: +7 (980) 019-08-63</p></bio><email xlink:type="simple">venediktov_a_a@staff.sechenov.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/0000-0003-4098-1125</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кузьмин</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuzmin</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кузьмин Егор Александрович - студент, лаборант кафедры анатомии и гистологии человека.</p><p>ул. Трубецкая, д. 8, стр. 2, Москва, 119048</p></bio><bio xml:lang="en"><p>Egor A. Kuzmin - student, lab assistant, Human Anatomy and Histology Department, Sechenov First Moscow State Medical University (Sechenov University).</p><p>8/2, Trubetskaya str., Moscow, 119048</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0704-1660</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кузнецов</surname><given-names>С. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuznetsov</surname><given-names>S. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кузнецов Сергей Львович - чл.-корр. РАН, д-р мед. наук, профессор кафедры анатомии и гистологии человека.</p><p>ул. Трубецкая, д. 8, стр. 2, Москва, 119048</p></bio><bio xml:lang="en"><p>Sergey L. Kuznetsov - Corresponding Member of the RAS, Dr. of Sci. (Medicine), Professor, Human Anatomy and Histology Department, Sechenov First Moscow State Medical University (Sechenov University).</p><p>8/2, Trubetskaya str., Moscow, 119048</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГАОУ ВО «Первый Московский государственный медицинский университет имени И.М. Сеченова» Минздрава России (Сеченовский Университет)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Sechenov First Moscow State Medical University (Sechenov University)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>30</day><month>12</month><year>2023</year></pub-date><volume>14</volume><issue>4</issue><fpage>31</fpage><lpage>41</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Piavchenko G.A., Venediktov A.A., Kuzmin E.A., Kuznetsov S.L., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Пьявченко Г.А., Венедиктов А.А., Кузьмин Е.А., Кузнецов С.Л.</copyright-holder><copyright-holder xml:lang="en">Piavchenko G.A., Venediktov A.A., Kuzmin E.A., Kuznetsov S.L.</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://www.sechenovmedj.com/jour/article/view/1001">https://www.sechenovmedj.com/jour/article/view/1001</self-uri><abstract><sec><title>Aim</title><p>Aim. We sought to assess the effects of exogenous Hsp70 (single subcutaneous low- and high-dose injections) on organ structure and functions in adult mice.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. We randomized CD1 90-day-old male mice (n = 30) to three groups (10 mice per group). We injected the animals with single subcutaneous saline solution for Group 1 (control), low dose (500 μg/kg) of recombinant human Hsp70 (HspA1A) for Group 2, and high dose (5000 μg/kg) of the Hsp70 for Group 3. We examined the behavior of the mice on Day 3 after the injections (distance traveled, velocity, and bowel movement number). We lethalized the mice on Day 5 with further histological study and morphometrics of cerebral cortex, thymus, spleen, and liver. The statistics included one-factor ANOVA test with post hoc Tukey test.</p></sec><sec><title>Results</title><p>Results. All study groups exhibited no significant difference of behavioral parameters. Some liver sinusoids were wider in control group and Hsp70 500 μg/kg group comparing to Hsp70 5000 μg/kg group. We obtained also data for morphometrics: no difference was found for the number of neurons in ganglionic cerebral cortex, the lymphocytic cellularity difference between thymic cortex and medulla, the number of lymphocytes in white splenic pulp, and the number of hepatocyte nuclei in the liver. Red splenic pulp exhibited 1774,5 ± 24,8, 1623,0 ± 26,7, 1553,6 ± 47,0 macrophages for control, low-dose and high-dose groups, respectively (р &lt; 0,0001). Tukey test showed a significant difference between control group and each of Hsp70 groups 500 μg/kg (р = 0,012) and 5000 μg/kg (р &lt; 0,0001).</p></sec><sec><title>Conclusion</title><p>Conclusion. Our study revealed no negative impact of subcutaneous Hsp70 administration at low and high doses on organ structure and functions in mice.</p></sec></abstract><trans-abstract xml:lang="ru"><sec><title>Цель</title><p>Цель. Оценить влияние экзогенного Hsp70 (heat shock protein, белок теплового шока массой 70 кДа) на морфофункциональное состояние взрослых мышей при его однократном подкожном введении в высоких и низких дозах.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Изучались самцы мышей линии CD1 (n = 30) возрастом 90 ± 3 суток, рандомизированные на три группы по 10 животных в каждой. Вводили однократно подкожно: 1-й группе (контроль) – физиологический раствор, 2-й группе – низкую дозу Hsp70 (500 мкг/кг) и 3-й группе – высокую дозу Hsp70 (5000 мкг/кг) рекомбинантного человеческого HspA1A. На 3-й день регистрировали поведенческую активность: скорость перемещения, пройденный путь и количество дефекаций. На 5-й день мышей выводили из эксперимента с последующим гистологическим исследованием и морфометрией срезов коры головного мозга, тимуса, селезенки и печени. Статистическая обработка данных осуществлялась при помощи однофакторного дисперсионного анализа и апостериорного теста Тьюки.</p></sec><sec><title>Результаты</title><p>Результаты. В изученных группах не обнаружено статистически значимой разницы поведенческих показателей. Синусоидные капилляры печени в группе контроля и группе Hsp70 500 мкг/кг оказались немного шире и полнокровнее по сравнению с Hsp70 5000 мкг/кг. При морфометрии клеток получены следующие результаты: число нейронов в ганглионарном слое коры больших полушарий головного мозга, разница лимфоцитарной клеточности между корковым и мозговым веществами тимуса, число лимфоцитов в белой пульпе селезенки, количество ядер гепатоцитов в печени в группах не различались. В красной пульпе селезенки количество макрофагов составило 1774,5 ± 24,8, 1623,0 ± 26,7, 1553,6 ± 47,0 в группах контроля, низкой и высокой доз Hsp70 соответственно (р &lt; 0,0001). В тесте Тьюки статистически значимые различия получены между группой контроля и группами Hsp70 500 мкг/кг (р = 0,012) и 5000 мкг/кг (р &lt; 0,0001).</p></sec><sec><title>Заключение</title><p>Заключение. Исследование не выявило негативного влияния подкожного введения низких и высоких доз Hsp70 на морфофункциональные показатели у мышей.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>белки теплового шока</kwd><kwd>рекомбинантный человеческий Hsp70</kwd><kwd>шапероны</kwd><kwd>морфофункциональная характеристика</kwd><kwd>экзогенный Hsp70 у мышей</kwd><kwd>HspA1A</kwd></kwd-group><kwd-group xml:lang="en"><kwd>heat-shock proteins</kwd><kwd>recombinant human Hsp70</kwd><kwd>chaperones</kwd><kwd>morpho-functional characteristics</kwd><kwd>exogenous Hsp70 in mice</kwd><kwd>HspA1A</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование проведено за счет гранта Российского научного фонда № 23-25-004481 от 12.01.2023. Авторы выражают благодарность Кудрявцевой В.А., Моисеевой А.В., Бойковой П.В., Гореловой М.А. – студентам ФГАОУ ВО «Первый Московский государственный медицинский университет имени И.М. Сеченова» Минздрава России (Сеченовский Университет) и Сердюк Е.А – врачу КФ ФГАУ НМИЦ «МНТК “Микрохирургия глаза” имени С.Н. Федорова» в г. Белгороде за помощь в проведении исследования и обсуждение полученных результатов.</funding-statement><funding-statement xml:lang="en">The work was financed by funding obtained from a grant of Russian Scientific Fund # 23-25-004482 from 12.01.2023. The authors express their gratitude to Kudryavtseva V.A., Moiseeva A.V., Boykova P.V., Gorelova M.A. (students of Sechenov University), and Serdyuk E.A. 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