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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">kpccz</journal-id><journal-title-group><journal-title xml:lang="ru">Комплексные проблемы сердечно-сосудистых заболеваний</journal-title><trans-title-group xml:lang="en"><trans-title>Complex Issues of Cardiovascular Diseases</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2306-1278</issn><issn pub-type="epub">2587-9537</issn><publisher><publisher-name>Federal State Budgetary Institution “Research Institute for Complex Issues of Cardiovascular Diseases”</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17802/2306-1278-2019-8-2-87-97</article-id><article-id custom-type="elpub" pub-id-type="custom">kpccz-566</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 ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL STUDIES</subject></subj-group></article-categories><title-group><article-title>БИОДЕГРАДИРУЕМЫЙ СОСУДИСТЫЙ ПРОТЕЗ С АРМИРУЮЩИМ ВНЕШНИМ КАРКАСОМ</article-title><trans-title-group xml:lang="en"><trans-title>BIODEGRADABLE VASCULAR GRAFT REINFORCED WITH A BIODEGRADABLE SHEATH</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>Антонова</surname><given-names>Л. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Antonova</surname><given-names>L. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор медицинских наук, заведующая лабораторией клеточных технологий, </p><p>ул. Сосновый бульвар, 6, Кемерово, 650002</p></bio><bio xml:lang="en"><p>PhD, Head of the Laboratory of Cell Technologies,</p><p>6, Sosnoviy Blvd, Kemerovo,  650002</p></bio><email xlink:type="simple">antonova.la@mail.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>Кривкина</surname><given-names>Е. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Krivkina</surname><given-names>E. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p> младший научный сотрудник лаборатории клеточных технологий, </p><p>ул. Сосновый бульвар, 6, Кемерово, 650002</p></bio><bio xml:lang="en"><p>research assistant at the Laboratory of Cell Technologies,</p><p>6, Sosnoviy Blvd, Kemerovo,  650002</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Резвова</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Rezvova</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>младший научный сотрудник лаборатории новых биоматериалов, </p><p>ул. Сосновый бульвар, 6, Кемерово, 650002</p></bio><bio xml:lang="en"><p>research assistant at the Laboratory of Novel Biomaterials,</p><p>6, Sosnoviy Blvd, Kemerovo,  650002</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Севостьянова</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Sevost'yanova</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат медицинских наук, научный сотрудник лаборатории клеточных технологий,</p><p>ул. Сосновый бульвар, 6, Кемерово, 650002</p></bio><bio xml:lang="en"><p>PhD, researcher at the Laboratory of Cell Technologies,</p><p>6, Sosnoviy Blvd, Kemerovo,  650002</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Миронов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Mironov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p> младший научный сотрудник лаборатории клеточных технологий, </p><p>ул. Сосновый бульвар, 6, Кемерово, 650002</p></bio><bio xml:lang="en"><p>research assistant at the Laboratory of Cell Technologies,</p><p>6, Sosnoviy Blvd, Kemerovo,  650002</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Глушкова</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Glushkova</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат биологических наук, научный сотрудник лаборатории новых биоматериалов,</p><p>ул. Сосновый бульвар, 6, Кемерово, 650002</p></bio><bio xml:lang="en"><p>PhD, researcher at the Laboratory of Novel Biomaterials,</p><p>6, Sosnoviy Blvd, Kemerovo,  650002</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Клышников</surname><given-names>К. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Klyshnikov</surname><given-names>K. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p> научный сотрудник лаборатории новых биоматериалов,</p><p>ул. Сосновый бульвар, 6, Кемерово, 650002</p></bio><bio xml:lang="en"><p>researcher at the Laboratory of Novel Biomaterials,</p><p>6, Sosnoviy Blvd, Kemerovo,  650002</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Овчаренко</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ovcharenko</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат технических наук, заведующий лабораторией новых биоматериалов, заведующий отделом организации инновационных и клинических исследований,</p><p>ул. Сосновый бульвар, 6, Кемерово, 650002</p></bio><bio xml:lang="en"><p>PhD, Head of the Laboratory of Novel Biomaterials, Head of the Department of Innovations and Clinical Trials,</p><p>6, Sosnoviy Blvd, Kemerovo,  650002</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кудрявцева</surname><given-names>Ю. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kudryavceva</surname><given-names>Yu. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор биологических наук, заведующая отделом экспериментальной и клинической кардиологии,</p><p>ул. Сосновый бульвар, 6, Кемерово, 650002</p></bio><bio xml:lang="en"><p>PhD, Head of the Department of Experimental and Clinical Cardiology,</p><p>6, Sosnoviy Blvd, Kemerovo,  650002</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Барбараш</surname><given-names>Л. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Barbarash</surname><given-names>L. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>академик РАН, доктор медицинских наук, профессор, главный научный сотрудник, </p><p>ул. Сосновый бульвар, 6, Кемерово, 650002</p></bio><bio xml:lang="en"><p>PhD, Professor, Academician of the RAS, chief researcher,</p><p>6, Sosnoviy Blvd, Kemerovo,  650002</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Федеральное государственное бюджетное научное учреждение «Научно-исследовательский институт комплексных проблем сердечно-сосудистых заболеваний»<country>Россия</country></aff><aff xml:lang="en">Federal State Budgetary Institution “Research Institute for Complex Issues of Cardiovascular Diseases”<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>23</day><month>06</month><year>2019</year></pub-date><volume>8</volume><issue>2</issue><fpage>87</fpage><lpage>97</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Антонова Л.В., Кривкина Е.О., Резвова М.А., Севостьянова В.В., Миронов А.В., Глушкова Т.В., Клышников К.Ю., Овчаренко Е.А., Кудрявцева Ю.А., Барбараш Л.С., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Антонова Л.В., Кривкина Е.О., Резвова М.А., Севостьянова В.В., Миронов А.В., Глушкова Т.В., Клышников К.Ю., Овчаренко Е.А., Кудрявцева Ю.А., Барбараш Л.С.</copyright-holder><copyright-holder xml:lang="en">Antonova L.V., Krivkina E.O., Rezvova M.A., Sevost'yanova V.V., Mironov A.V., Glushkova T.V., Klyshnikov K.Y., Ovcharenko E.A., Kudryavceva Y.A., Barbarash L.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.nii-kpssz.com/jour/article/view/566">https://www.nii-kpssz.com/jour/article/view/566</self-uri><abstract><sec><title>Актуальность</title><p>Актуальность. Основные способы укрепления стенки тканеинженерного сосудистого графта представляют собой использование армирующих конструкций, изготовленных из биостабильных или биодеградируемых полимеров. Однако совмещение метода электроспиннинга с целью изготовления биодеградируемого трубчатого каркаса и метода послойного наплавления армирующей нити для создания внешнего армирующего каркаса требует оценки сохранения единства конструкции в ходе долгосрочной имплантации, а также реакции окружающих тканей на армирующее покрытие.</p></sec><sec><title>Цель</title><p>Цель. Разработать технологию изготовления биодеградируемого сосудистого протеза малого диметра с внешним армирующим покрытием и оценить состоятельность разработанной конструкции в эксперименте.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Методом двухфазного электроспиннинга из полигидроксибутирата/валерата и поликапролактона (PHBV/PCL) изготовлены трубчатые каркасы диаметром 4,0 мм с послойным введением в структуру графта дифференцировочных факторов (GF mix): VEGF – во внутреннюю 1/3 стенки, bFGF и SDF-1a – во внешние 2/3 стенки. Внешний спиралевидный каркас из PCL изготавливали методом послойного наплавления. Изучены физико-механические свойства и структура поверхности разработанных конструкций. Сосудистые графты с армирующим внешним каркасом имплантированы в сонную артерию пяти овец сроком на 12 месяцев с последующим изучением эксплантированных образцов с помощью сканирующей электронной микроскопии и гистологических методов исследования.</p></sec><sec><title>Результаты</title><p>Результаты. Выбор температурного режима спекания 160 ᵒС в процессе экструзии позволил интимно и без повреждения зон, свободных от армирующего покрытия, соединить нить PCL с наружной поверхностью трубчатого каркаса PHBV/ PCL/GFmix. Получали PCL нить толщиной 380–400 мкм, шаг спирали армирующего каркаса составил 1 мм. Наличие армирующего каркаса в 3 раза повысило прочность на разрыв и модуль Юнга графтов в поперечном направлении. Спустя 12 месяцев имплантации целостность конструкции сохранялась, существенной резорбции внешнего армирующего каркаса не выявлено, в тканях, окружавших нити каркаса, отсутствовало воспаление и кальцификация.</p></sec><sec><title>Заключение</title><p>Заключение. В ходе долгосрочной имплантации сохранено единство биодеградируемого сосудистого протеза PHBV/PCL/GF mix с внешним армирующим спиралевидным каркасом из PCL. Результаты гистологического исследования свидетельствуют о высокой биосовместимости разработанной конструкции.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Background</title><p>Background. Tissue-engineered vascular grafts can be reinforced by a biostable or biodegradable polymer sheath. A combination of electrospinning, routinely used for fabrication of biodegradable tubular grafts, and the layer-by-layer coating allows forming a polymeric sheath ensuring long-term integrity and high biocompatibility of the vascular grafts after the implantation. Aim To evaluate mechanical properties and in vivo performance of biodegradable small-diameter vascular grafts with a reinforcing sheath.</p></sec><sec><title>Methods</title><p>Methods. Tubular grafts (4 mm diameter) were fabricated from poly(3-hydroxybutyrate-co3-hydroxyvalerate) and poly(ε-caprolactone) by emulsion electrospinning with the incorporation of vascular endothelial growth factor (VEGF) into the inner third of the graft and basic fibroblast growth factor (bFGF) along with stromal cell-derived factor-1α (SDF-1α) into the outer two thirds of the graft wall. Poly(ε-caprolactone) sheath was formed by the layer-by-layer coating. Upon graft fabrication, scanning electron microscopy was performed to assess the grafts’ surface, tensile testing allowed evaluating mechanical properties. The samples were implanted into the ovine carotid artery (n = 5 animals) for 12 months with the subsequent histological examination.</p></sec><sec><title>Results</title><p>Results. Sintering temperature of 160°C during the extrusion allowed effective and delicate merging of poly(ε-caprolactone) coating with the outer surface of the poly(3hydroxybutyrate-co-3-hydroxyvalerate)/poly(ε-caprolactone) tubular graft. The thickness of poly(ε-caprolactone) fiber was 380–400 μm, the increment of the reinforcing filament was 1 mm. The reinforcing sheath led to a 3-fold increase in durability and elastic modulus of the vascular grafts. At the 12-months follow-up, the grafts reported retained integrity. No signs of inflammation or calcification were found.</p></sec><sec><title>Conclusion</title><p>Conclusion. The poly(3-hydroxybutyrate-co-3-hydroxyvalerate) and poly(ε-caprolactone) vascular grafts with hierarchically incorporated growth factors and the reinforced poly(ε-caprolactone) spiral sheath demonstrated improved mechanical properties while retaining integrity and high biocompatibility after the long-term implantation into the ovine carotid artery.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>Биодеградируемые полимеры</kwd><kwd>Сосудистые графты</kwd><kwd>Электроспиннинг</kwd><kwd>Экструзия</kwd><kwd>Армирующий каркас</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Biodegradable polymers</kwd><kwd>Vascular grafts</kwd><kwd>Electrospinning</kwd><kwd>Extrusion</kwd><kwd>Reinforcing sheath</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">Fisher M.B., Mauck R.L. 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