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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">najo</journal-id><journal-title-group><journal-title xml:lang="en">Nanosystems: Physics, Chemistry, Mathematics</journal-title><trans-title-group xml:lang="ru"><trans-title>Наносистемы: физика, химия, математика</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2220-8054</issn><issn pub-type="epub">2305-7971</issn><publisher><publisher-name>Университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17586/2220-8054-2018-9-4-537-543</article-id><article-id custom-type="elpub" pub-id-type="custom">najo-768</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>CHEMISTRY AND MATERIAL SCIENCE</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ХИМИЯ И МАТЕРИАЛОВЕДЕНИЕ</subject></subj-group></article-categories><title-group><article-title>Сerium oxide nanoparticles increase the cytotoxicity of TNF-alpha in vitro</article-title><trans-title-group xml:lang="ru"><trans-title></trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Shydlovska</surname><given-names>O.</given-names></name></name-alternatives><bio xml:lang="en"><p>Kyiv</p></bio><email xlink:type="simple">olgashydlovska@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Kharchenko</surname><given-names>E.</given-names></name></name-alternatives><bio xml:lang="en"><p>Kyiv</p></bio><email xlink:type="simple">yugin171094@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Zholobak</surname><given-names>N.</given-names></name></name-alternatives><bio xml:lang="en"><p>Kyiv</p></bio><email xlink:type="simple">n.zholobak2018@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Shcherbakov</surname><given-names>A.</given-names></name></name-alternatives><bio xml:lang="en"><p>Kyiv</p></bio><email xlink:type="simple">ceroform@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Marynin</surname><given-names>A.</given-names></name></name-alternatives><bio xml:lang="en"><p>Kyiv</p></bio><email xlink:type="simple">andriimarynin@ukr.net</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Ivanova</surname><given-names>O.</given-names></name></name-alternatives><bio xml:lang="en"><p>Moscow</p></bio><email xlink:type="simple">runetta05@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Baranchikov</surname><given-names>A</given-names></name></name-alternatives><bio xml:lang="en"><p>Moscow</p></bio><email xlink:type="simple">a.baranchikov@yandex.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Ivanov</surname><given-names>V.</given-names></name></name-alternatives><bio xml:lang="en"><p>Moscow</p><p>Tomsk</p></bio><email xlink:type="simple">van@igic.ras.ru</email><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff xml:lang="en" id="aff-1"><institution>Zabolotny Institute of Microbiology and Virology NANU</institution><country>Ukraine</country></aff><aff xml:lang="en" id="aff-2"><institution>National University of Food Technologies</institution><country>Ukraine</country></aff><aff xml:lang="en" id="aff-3"><institution>Kurnakov Institute of General and Inorganic Chemistry</institution><country>Russian Federation</country></aff><aff xml:lang="en" id="aff-4"><institution>Kurnakov Institute of General and Inorganic Chemistry; National Research Tomsk State University</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>13</day><month>08</month><year>2025</year></pub-date><volume>9</volume><issue>4</issue><fpage>537</fpage><lpage>543</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Shydlovska O., Kharchenko E., Zholobak N., Shcherbakov A., Marynin A., Ivanova O., Baranchikov A., Ivanov V., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Shydlovska O., Kharchenko E., Zholobak N., Shcherbakov A., Marynin A., Ivanova O., Baranchikov A., Ivanov V.</copyright-holder><copyright-holder xml:lang="en">Shydlovska O., Kharchenko E., Zholobak N., Shcherbakov A., Marynin A., Ivanova O., Baranchikov A., Ivanov 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://nanojournal.ifmo.ru/jour/article/view/768">https://nanojournal.ifmo.ru/jour/article/view/768</self-uri><abstract><p>Cerium oxide nanoparticles (CeONP) were used as the modifying agent for the recombinant tumor necrosis factor-α and recombinant tumor necrosis factor-α-thymosin-α1 (rhTNF and rhTNF-T). A notable increase of the biological activity of proteins with antitumor effect was demonstrated. It was established that the cytotoxicity of rTNF-T+CeONP composite increases with the duration of exposure to 7 days. Modification of rTNF-T with cerium oxide nanoparticles provides a stronger and more stable cytotoxic effect in Hep-2, L929, and A-549 tumor cell lines.</p></abstract><kwd-group xml:lang="en"><kwd>cerium oxide nanoparticles</kwd><kwd>tumor necrosis factor</kwd><kwd>nano-biocomposite</kwd><kwd>biological activity</kwd><kwd>antitumor effect</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">Goh C.R. Tumour necrosis factors in clinical practice. Ann Acad Med Singapore, 1990, 19 (2), P. 235–239.</mixed-citation><mixed-citation xml:lang="en">Goh C.R. Tumour necrosis factors in clinical practice. 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