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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">rpmj</journal-id><journal-title-group><journal-title xml:lang="ru">Research'n Practical Medicine Journal</journal-title><trans-title-group xml:lang="en"><trans-title>Research and Practical Medicine Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2410-1893</issn><publisher><publisher-name>"QUASAR", LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17709/2410-1893-2022-9-4-4</article-id><article-id custom-type="elpub" pub-id-type="custom">rpmj-800</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. Онкология, лучевая терапия</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Original Articles. Оncology</subject></subj-group></article-categories><title-group><article-title>Сравнение эффективности способов контрастирования in vivo моделей колоректального рака</article-title><trans-title-group xml:lang="en"><trans-title>A comparative study of different contrast administration routes efficiency performed on in vivo colorectal cancer models</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0676-0871</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гончарова</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Goncharova</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гончарова Анна Сергеевна – кандидат биологических наук, заведующая испытательным лабораторным центром</p><p>Ростов-на-Дону</p><p>SPIN: 7512-2039,</p><p>AuthorID: 553424,</p><p>Scopus Author ID: 57215862139</p></bio><bio xml:lang="en"><p>Anna S. Goncharova – Cand. Sci. (Biol.), head of the testing laboratory center</p><p>Rostov-on-Don</p><p>SPIN: 7512-2039,</p><p>AuthorID: 553424,</p><p>Scopus Author ID: 57221463056</p></bio><email xlink:type="simple">fateyeva_a_s@list.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/0000-0003-3753-4463</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ходакова</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Khodakova</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ходакова Дарья Владиславовна – младший научный сотрудник испытательного лабораторного центра</p><p>344037, г. Ростов-на-Дону, ул. 14-я линия, д. 63</p><p>SPIN: 8718-3983,</p><p>AuthorID: 1056414,</p><p>Scopus Author ID: 57221463056</p></bio><bio xml:lang="en"><p>Darya V. Khodakova – junior researcher at the testing laboratory center</p><p>63 14 line str., Rostov-on-Don 344037</p><p>SPIN: 8718-3983,</p><p>AuthorID: 1056414,</p><p>Scopus Author ID: 57221463056</p></bio><email xlink:type="simple">KhodakovaDV@yandex.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/0000-0001-7823-3865</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Галина</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Galina</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Галина Анастасия Владимировна – младший научный сотрудник испытательного лабораторного центра</p><p>Ростов-на-Дону</p><p>SPIN: 9171-4476,</p><p>AuthorID: 1071933,</p><p>Scopus Author ID: 57221460594</p></bio><bio xml:lang="en"><p>Anastasia V. Galina – junior researcher at the testing laboratory center</p><p>Rostov-on-Don</p><p>SPIN: 9171-4476,</p><p>AuthorID: 1071933,</p><p>Scopus Author ID: 57221460594</p></bio><email xlink:type="simple">volkovaav58@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/0000-0003-0088-2990</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Заикина</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zaikina</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Заикина Екатерина Владиславовна – младший научный сотрудник испытательного лабораторного центра</p><p>Ростов-на-Дону</p><p>SPIN: 4000-4369,</p><p>AuthorID: 1045258,</p><p>Scopus Author ID: 57221463270</p></bio><bio xml:lang="en"><p>Ekaterina V. Zaikina – junior researcher at the testing laboratory center</p><p>Rostov-on-Don</p><p>SPIN: 4000-4369,</p><p>AuthorID: 1045258,</p><p>Scopus Author ID: 57221463270</p></bio><email xlink:type="simple">katherine_bio@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/0000-0003-3436-1325</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Курбанова</surname><given-names>Л. З.</given-names></name><name name-style="western" xml:lang="en"><surname>Kurbanova</surname><given-names>L. Z.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Курбанова Луиза Зулкаидовна – младший научный сотрудник испытательного лабораторного центра</p><p>Ростов-на-Дону</p><p>SPIN: 9060-4853,</p><p>AuthorID: 1020533</p></bio><bio xml:lang="en"><p>Luiza Z. Kurbanova – junior researcher at the testing laboratory center</p><p>Rostov-on-Don</p><p>SPIN: 9060-4853,</p><p>AuthorID: 1020533</p></bio><email xlink:type="simple">luizacurbanowa@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/0000-0001-8734-9210</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Миндарь</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Mindar</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Миндарь Мария Вадимовна – младший научный сотрудник испытательного лабораторного центра</p><p>Ростов-на-Дону</p><p>SPIN: 5148-0830,</p><p>AuthorID: 1032029,</p><p>Scopus Author ID: 57217235360</p></bio><bio xml:lang="en"><p>Maria V. Mindar – junior researcher at the testing laboratory center</p><p>Rostov-on-Don</p><p>SPIN: 5148-0830,</p><p>AuthorID: 1032029,</p><p>Scopus Author ID: 57217235360</p></bio><email xlink:type="simple">m.v.mindar@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/0000-0002-9747-8515</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гурова</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Gurova</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гурова Софья Валерьевна – лаборант-исследователь испытательного лабораторного центра</p><p>Ростов-на-Дону</p></bio><bio xml:lang="en"><p>Gurova V. Sofya – laboratory assistant-researcher at the testing laboratory center</p><p>Rostov-on-Don</p></bio><email xlink:type="simple">gurova.sophie@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «НМИЦ онкологии» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Medical Research Centre for Oncology</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>05</day><month>12</month><year>2022</year></pub-date><volume>9</volume><issue>4</issue><fpage>42</fpage><lpage>51</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гончарова А.С., Ходакова Д.В., Галина А.В., Заикина Е.В., Курбанова Л.З., Миндарь М.В., Гурова С.В., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Гончарова А.С., Ходакова Д.В., Галина А.В., Заикина Е.В., Курбанова Л.З., Миндарь М.В., Гурова С.В.</copyright-holder><copyright-holder xml:lang="en">Goncharova A.S., Khodakova D.V., Galina A.V., Zaikina A.V., Kurbanova L.Z., Mindar M.V., Gurova S.V.</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.rpmj.ru/rpmj/article/view/800">https://www.rpmj.ru/rpmj/article/view/800</self-uri><abstract><sec><title>Цель исследования</title><p>Цель исследования. Сравнить эффективность существующих способов контрастирования при проведении микрокомпьютерной томографии in vivo для визуализации моделей колоректального рака, полученных методом ортотопической имплантации в слепую кишку иммунодефицитным мышам линии BALB/c Nude.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Исследование было выполнено на самках мышей линии BALB/c Nude (N = 25), которым имплантировали перевиваемый штамм КРР человека в слепую кишку. Через 20 дней после имплантации животным вводили контрастный агент «Оптирей» различными способами (внутривенно, перорально, внутрибрюшинно, ректально) и визуализировали на приборе Quantum GX2. Полученные изображения были импортированы в программу RadiAnt DICOM Viewer, где были выполнены замеры опухолевых узлов. После была проведена лапаротомия с замером опухолевых узлов штангенциркулем. На последнем этапе исследования животных эвтанизировали методом дислокации шейных позвонков. Опухоли были иссечены, замерены штангенциркулем и помещены в 10 % формалин для проведения гистологического анализа согласно стандартной методике.</p></sec><sec><title>Результаты</title><p>Результаты. При внутривенном, пероральном и внутрибрюшинном введении контраста средние значения объемов опухолевых ксенографтов по результатам микро-КТ составили 53,7 ± 5,2 мм3, 52,7 ± 6,4 мм3 и 63,6 ± 5,6 мм3 соответственно, по данным лапаротомии – 43,0 ± 5,5 мм3, 44,5 ± 5,4 мм3 и 58,5 ± 5,5 мм3 соответственно, по данным, полученным посмертно – 55,2 ± 6,6 мм3 53,2 ± 8,8 мм3 65,9 ± 3,8 мм3 соответственно. Для этих трех групп средние объемы опухолей, полученные при измерении опухолей посмертно были сопоставимы с объемами полученными при проведении микро-КТ, но выше данных, полученных при лапаротомии.</p></sec><sec><title>Заключение</title><p>Заключение. Полученные нами данные показывают, что внутривенный, внутрибрюшинный и пероральный способы введения контраста являются более адекватными и предпочтительными при проведении микро-КТ на лабораторных животных.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Purpose of the study</title><p>Purpose of the study. The investigation is aimed to provide a systematic comparison of different contrasting methods for in vivo micro-CT diagnostic of orthotopic colorectal cancer models extracted by ortotopic implantation into the caecum of immunocompromised mice BALB/c Nude lines.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. BALB/c Nude (N = 25) female mice were implanted by transplanted human colorectal cancer strain into the cecum. 20 days after the implantation mice were administered with iodine-based contrast agent Optiray by means of different administration method (intravenously, per os, intraperitoneally, per rectum) and micro-CT scans have been registered via Quantum GX2 tomograph. Measurement of tumor nodes was performed both by means of estimation from micro-CT images via RadiAnt DICOM Viewer software and by means of explicit measurements using calipers upon laparotomy and posthumously. At the last stage of the study, the animals were euthanized by cervical dislocation. The tumors were excised, measured with a caliper and placed in 10 % formalin for the standard histological analysis according to the standard methods.</p></sec><sec><title>Results</title><p>Results. The average volumes of tumor xenografts in animals with intravenous, oral, and intraperitoneal contrast administration measured at micro-CT were 53.7 ± 5.2 mm3, 52.7 ± 6.4 mm3 and 63.6 ± 5.6 mm3 respectively; measured at laparotomy – 43.0 ± 5.5 mm3, 44.5 ± 5.4 mm3 and 58.5 ± 5.5 mm3 respectively; measured post-mortem – 55.2 ± 6.6 mm3, 53.2 ± 8.8 mm3 and 65.9 ± 3.8 mm3 respectively. The average volumes of tumor xenografts isolated post-mortem in these groups were comparable with the values shown at micro-CT, but larger than the volumes measured at laparotomy.</p></sec><sec><title>Conclusion</title><p>Conclusion. The results obtained demonstrated that intravenous, peroral and intraperitoneal administration techniques provide the best visualization of laboratory rodents pathological tissue upon in vivo micro-CT diagnostics and thus are preferred.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>колоректальный рак</kwd><kwd>PDX-модели</kwd><kwd>Balb/c Nude</kwd><kwd>микро-компьютерная томография</kwd><kwd>in vivo</kwd><kwd>контрастный агент</kwd></kwd-group><kwd-group xml:lang="en"><kwd>colon cancer</kwd><kwd>PDX model</kwd><kwd>BALB/c Nude</kwd><kwd>micro-computed tomography</kwd><kwd>in vivo</kwd><kwd>contrast agent</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">Sung H, Ferlay J, Siegel RL, Laversanne M, Soerjomataram I, Jemal A, et al. Global cancer statistics 2020: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries. 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