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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">scbmt</journal-id><journal-title-group><journal-title xml:lang="ru">БИОМЕДИЦИНА</journal-title><trans-title-group xml:lang="en"><trans-title>Journal Biomed</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2074-5982</issn><issn pub-type="epub">2713-0428</issn><publisher><publisher-name>Scientific center of biomedical technologies of Federal Medical and Biological Agency</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">scbmt-18</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>НОВЫЕ БИОМЕДИЦИНСКИЕ ТЕХНОЛОГИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>NEW BIOMEDICAL TECHNOLOGIES</subject></subj-group></article-categories><title-group><article-title>Использование метода микроинъекции для повышения эффективности выделения первичных колоний из бластоцист инбредных мышей в условиях культуры in vitro</article-title><trans-title-group xml:lang="en"><trans-title>Microinjection as a method to increase the efficiency of isolation of primary colonies from inbred mice blastocysts in vitro</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Межевикина</surname><given-names>Л. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Mezhevikina</surname><given-names>L. M.</given-names></name></name-alternatives><email xlink:type="simple">mezhevikina@rambler.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Храмцова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Khramtsova</surname><given-names>E. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Смолихина</surname><given-names>Т. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Smolikhina</surname><given-names>T. I.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Капралова</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kapralova</surname><given-names>I. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Косовский</surname><given-names>Г. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Kosovsky</surname><given-names>G. Yu.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>ФГБНУ «Центр экспериментальной эмбриологии и репродуктивных биотехнологий»</institution><country>Russian Federation</country></aff><aff xml:lang="ru" id="aff-2"><institution>ФГБУН «Институт биофизики клетки РАН»</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>25</day><month>02</month><year>2019</year></pub-date><volume>0</volume><issue>1</issue><fpage>25</fpage><lpage>36</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Межевикина Л.М., Храмцова Е.В., Смолихина Т.И., Капралова И.В., Косовский Г.Ю., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Межевикина Л.М., Храмцова Е.В., Смолихина Т.И., Капралова И.В., Косовский Г.Ю.</copyright-holder><copyright-holder xml:lang="en">Mezhevikina L.M., Khramtsova E.V., Smolikhina T.I., Kapralova I.V., Kosovsky G.Y.</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://journal.scbmt.ru/jour/article/view/18">https://journal.scbmt.ru/jour/article/view/18</self-uri><abstract><p>Оценены перспективы использования метода микроинъекции для выделения из бластоцист инбредных линий мышей клеток внутренней клеточной массы и трофобласта - источников новых линий стволовых клеток эмбрионального происхождения. Показано, что после микроинъекции в полость бластоцисты 10 нл модифицированной среды Виттена и/или витальных красителей (0,03% трипанового синего и 0,1% фенолового красного) повреждается не более 4-5% клеток по ходу прокола. При этом происходят видимые изменения морфологии бластоцисты, которые практически полностью нивелируют в течение первых 24 ч инкубирования в модифицированной среде Виттена. Показано, что процедура микроинъекции не влияет на последующее развитие инъецированных бластоцист до стадии формирования in vitro первичных колоний, представляющих собой единую популяцию взаимодействующих между собой клеток внутренней клеточной массы и трофобласта. Показано также, что механический прокол блестящей оболочки ( zona pellucida ) и осмотический шок от введения избыточного количества жидкости во внутреннюю полость бластоцисты способствуют выходу бластоцисты из z. pellucida и колониеобразованию (для мышей линий NMRI и SHK - до 93 и 78%, против 47 и 44% в контроле, соответственно). Таким образом, микроинъекция небольших объемов сбалансированных по солевому составу сред и/или растворов витальных красителей (не более 10 нл) может служить вспомогательным приемом для более эффективного выделения первичных колоний из бластоцист мышей с разным генотипом и создания на основе клеток внутренней клеточной массы и трофобласта новых экспериментальных моделей для медико-биологических исследований.</p></abstract><trans-abstract xml:lang="en"><p>We have estimated a perspective of the microinjection (MI) for isolation from blastocysts inbred mouse cells of the innercell mass (ICM) and trophoblast (TB) - sources of new stem cell lines of embryonic origin. It is shown that microinjection into the cavity of the blastocyst 10nl Witten’s medium and/or vital dyes (0.03% trypan blue and 0.1% phenol red) leads to damage of not more than 4-5% of the cells. In the process there are visible changes in the morphology of the blastocyst, which are almost completely leveled out during the first 24 h of incubation in the Witten’s medium. It was revealed that microinjection procedure doesn’t affect the subsequent development of the injected blastocyst to stage of primary colonies formation in vitro as a single population of interacting innercell mass and trophoblast. It’s also shown that the mechanical puncture of shiny shell (zona pellucida) and osmotic shock from the introduction of excessive amounts of fluid into the internal blastocyst cavity contribute to blastocyst outputting from zona pellucida and to colony formation (for NMRI and SHK cell lines up to 93 and 78 to 47 and 44% in control, respectively). Thus, microinjection small volumes of medium balanced by salt composition and/or solutions of vital dyes (less than 10 nl) can serve a sauxiliary method to increase the efficiency of isolation of primary colonies from inbred mice blastocysts with different genotype and to create new experimental models for biomedical research.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>микроинъекция</kwd><kwd>стадия бластоцисты</kwd><kwd>клетки внутренней клеточной массы</kwd><kwd>трофобласт</kwd></kwd-group><kwd-group xml:lang="en"><kwd>microinjection</kwd><kwd>stage of blastocyst</kwd><kwd>cells of the inner cell mass</kwd><kwd>trophoblast</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">Межевикина Л.М., Федорова В.В., Капралова И.В., Фесенко Е.Е. Повышение выживаемости доимплантационных зародышей мыши в среде с рекомбинантным цитокином LIF // Онтогенез. 2006. Т. 37. № 1. 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