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<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="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Russian Journal of Biotherapy</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Biotherapy</journal-title><trans-title-group xml:lang="ru"><trans-title>Российский биотерапевтический журнал</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1726-9784</issn><issn publication-format="electronic">1726-9792</issn><publisher><publisher-name xml:lang="en">Publishing House ABV Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">1278</article-id><article-id pub-id-type="doi">10.17650/1726-9784-2021-20-4-51-58</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL REPORTS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Effect of Poly(I:C) and melanoma B16-F10 on the immunophenotype of murine spleen cells</article-title><trans-title-group xml:lang="ru"><trans-title>Влияние Poly(I:C) и меланомы B16-F10 на иммунофенотип клеток селезенки мышей</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9517-8183</contrib-id><name-alternatives><name xml:lang="en"><surname>Ponomarev</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Пономарев</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Aleksandr Vasilyevich Ponomarev</p><p>24 Kashirskoe Shosse, Moscow 115478</p></bio><bio xml:lang="ru"><p>Александр Васильевич Пономарев</p><p>115478 Москва, Каширское шоссе, 24</p></bio><email>kl8546@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7266-7689</contrib-id><name-alternatives><name xml:lang="en"><surname>Rudakova</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Рудакова</surname><given-names>А. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>24 Kashirskoe Shosse, Moscow 115478</p></bio><bio xml:lang="ru"><p>115478 Москва, Каширское шоссе, 24</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4755-5313</contrib-id><name-alternatives><name xml:lang="en"><surname>Sokolova</surname><given-names>Z. A.</given-names></name><name xml:lang="ru"><surname>Соколова</surname><given-names>З. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>24 Kashirskoe Shosse, Moscow 115478</p></bio><bio xml:lang="ru"><p>115478 Москва, Каширское шоссе, 24</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6688-8423</contrib-id><name-alternatives><name xml:lang="en"><surname>Baryshnikova</surname><given-names>M. A.</given-names></name><name xml:lang="ru"><surname>Барышникова</surname><given-names>М. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>24 Kashirskoe Shosse, Moscow 115478</p></bio><bio xml:lang="ru"><p>115478 Москва, Каширское шоссе, 24</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8462-2178</contrib-id><name-alternatives><name xml:lang="en"><surname>Kosorukov</surname><given-names>V. S.</given-names></name><name xml:lang="ru"><surname>Косоруков</surname><given-names>В. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>24 Kashirskoe Shosse, Moscow 115478</p></bio><bio xml:lang="ru"><p>115478 Москва, Каширское шоссе, 24</p></bio><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр онкологии им. Н. Н. Блохина» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2021-12-03" publication-format="electronic"><day>03</day><month>12</month><year>2021</year></pub-date><volume>20</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>51</fpage><lpage>58</lpage><history><date date-type="received" iso-8601-date="2021-12-02"><day>02</day><month>12</month><year>2021</year></date><date date-type="accepted" iso-8601-date="2021-12-02"><day>02</day><month>12</month><year>2021</year></date></history><permissions><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://bioterapevt.abvpress.ru/jour/article/view/1278">https://bioterapevt.abvpress.ru/jour/article/view/1278</self-uri><abstract xml:lang="en"><p><bold>Introduction</bold>. It is known that the agonist of TLR-3 Poly(I:C), used as an adjuvant in a number of models of antitumor vaccines, causes inhibition of melanoma B16 growth, but the immunological aspects involved in this process have not been fully studied.</p><p><bold>The aim of the study</bold> was to evaluate changes of the immunophenotype of the spleen cells of C57BL / 6 mice caused by the tumor load and / or Poly(I:C), which is necessary for better understanding of the processes occurring during Poly(I:C) inhibition of melanoma B16-F10.</p><p><bold>Materials and methods</bold>. The immunophenotype of splenocytes of C57Bl / 6 mice was studied by flow cytometry asfollowing: the group 1 was a control (intact animals), the group 2 was mice with subcutaneously transplanted melanoma B16-F10, the group 3 was mice without a tumor treated with Poly(I:C) and the group 4 – mice with subcutaneously transplanted melanoma B16-F10 treated with Poly(I:C).</p><p><bold>Results</bold>. Median values of parameters such as the CD4 / CD8 immunoregulatory index, the percentage of CD69<sup>+</sup> CD4<sup>+</sup> and CD8<sup>+</sup> T cells, the number of B and NK cells for the group of mice with melanoma treated with Poly(I:C) were between the values in the control group and in the group of mice with B16-F10. when comparing the results, the number of B and NK cells, the percentage of CD69<sup>+</sup> on CD4<sup>+</sup> and CD8<sup>+</sup> T cells, their median in the group of mice with melanoma treated with Poly(I:C) was closer to the control than to the values obtained in the B16-F10 group and in the group of healthy mice receiving Poly(I:C). At the same time, we found that the total number of CD3<sup>+</sup> cells, the number of naive CD4<sup>+</sup> and CD8<sup>+</sup> T cells was higher in the group of mice with melanoma treated with Poly(I:C) compared to all other groups.</p><p><bold>Conclusion</bold>. The analysis revealed the changes of the immunophenotype of murine spleen cells (CD4 / CD8, the percentage of CD69<sup>+</sup> CD4<sup>+</sup> and CD8<sup>+</sup> T cells, the number of B and NK cells), which were affected by the tumor load and / or the administration of Poly adjuvant (I:C). Changes in the immunophenotype of murine splenocytes were associated with the tumor load and its size. It was also found that the splenocyte immunophenotype was affected by the repeated administration of Poly(I:C) during the tumor growth.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение</bold>. Известно, что агонист TLR-3 Poly(I:C), используемый в качестве адъюванта в ряде моделей противоопухолевых вакцин, вызывает торможение роста меланомы В16, однако недостаточно полно изучены иммунологические аспекты, вовлеченные в этот процесс.</p><p><bold>Цель исследования</bold> – оценка изменений иммунофенотипа клеток селезенки мышей C57BL / 6, вызванных опухолевой нагрузкой и / или Poly(I:C), для лучшего понимания процессов, происходящих при торможении роста меланомы B16-F10 под воздействием Poly(I:C).</p><p><bold>Материалы и методы</bold>. С помощью проточной цитометрии исследовали иммунофенотип спленоцитов мышей C57BL / 6: 1-я группа – контроль (интактные животные), 2-я группа – мыши с подкожно перевитой меланомой B16-F10, 3-я группа – мыши без опухоли, получавшие Poly(I:C), и 4-я группа – мыши с подкожно перевитой меланомой B16-F10, получавшие Poly(I:C).</p><p><bold>Результаты</bold>. Медианы значений таких параметров, как иммунорегуляторный индекс CD4 / CD8, количество CD69<sup>+</sup> Т-клеток CD4<sup>+</sup> и CD8<sup>+</sup>, количество В- и NK-клеток для группы мышей с меланомой, получавших Poly(I:C), находятся между значениями указанных параметров в контрольной группе и в группе мышей с B16-F10. При сравнении показателей количество В- и NK- клеток, количество CD69<sup>+</sup> Т-клеток CD4<sup>+</sup> и CD8<sup>+</sup>, их медианы в группе мышей с меланомой, получавших Poly(I:C), оказались ближе к контролю, чем к значениям, полученным в группе В16-F10 и в группе здоровых мышей, получивших Poly(I:C). В то же время нами обнаружено, что общее количество CD3<sup>+</sup>-клеток, количество наивных Т-клеток CD4<sup>+</sup> и CD8<sup>+</sup> выше в группе мышей с меланомой, получавших Poly(I:C), по сравнению со всеми остальными группами.</p><p><bold>Заключение</bold>. Выявлены параметры иммунофенотипа клеток селезенки мышей (CD4 / CD8, количество CD69<sup>+</sup> Т-клеток CD4<sup>+</sup> и CD8<sup>+</sup>, количество В- и NK-клеток), на которые влияют опухолевая нагрузка и/или введение адъюванта Poly(I:C). Изменения иммунофенотипа спленоцитов мышей связаны с наличием опухоли и ее размерами. Также обнаружено, что на иммунофенотип спленоцитов оказывает влияние многократное введение Poly(I:C) во время роста опухоли.</p></trans-abstract><kwd-group xml:lang="en"><kwd>Poly(I:C)</kwd><kwd>immunophenotyping</kwd><kwd>spleen cells</kwd><kwd>melanoma B16-F10</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>Poly(I:C)</kwd><kwd>иммунофенотипирование</kwd><kwd>клетки селезенки</kwd><kwd>меланома В16-F10</kwd></kwd-group><funding-group><funding-statement xml:lang="en">The study was carried out with the financial support of the Ministry of Health of Russia in the framework of the research No АААА-А20-120022090056-5.</funding-statement><funding-statement xml:lang="ru">Работа была выполнена при финансовой поддержке Министерства здравоохранения России в рамках исследования № АААА-А20-120022090056-5.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Akazawa T., Ebihara T., Okuno M. et al. 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