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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">oncotomsk</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский онкологический журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Siberian journal of oncology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1814-4861</issn><issn pub-type="epub">2312-3168</issn><publisher><publisher-name>Tomsk National Research Medical Сепtеr of the Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21294/1814-4861-2016-15-2-48-55</article-id><article-id custom-type="elpub" pub-id-type="custom">oncotomsk-333</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>ЛАБОРАТОРНЫЕ И ЭКСПЕРИМЕНТАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>LABORATORY AND EXPERIMENTAL STUDIES</subject></subj-group></article-categories><title-group><article-title>АБЕРРАНТНОЕ МЕТИЛИРОВАНИЕ ПРОМОТОРНЫХ УЧАСТКОВ ГЕНОВ APC, CDH13 И MGMT У БОЛЬНЫХ КОЛОРЕКТАЛЬНЫМ РАКОМ</article-title><trans-title-group xml:lang="en"><trans-title>ABERRANT METHYLATION OF THE PROMOTER OF APC, CDH13 AND MGMT GENES IN COLORECTAL CANCER PATIENTS</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>Кит</surname><given-names>О. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Kit</surname><given-names>O. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор медицинских наук, заслуженный врач РФ, профессор, директор ФГБУ «Ростовский научно-исследовательский онкологический институт» Минздрава России (г. Ростов-на-Дону, Российская Федерация). SPIN-код: 1728-0329.</p></bio><bio xml:lang="en"><p>MD, DSc, Professor, Director of the Rostov Research Institute of Oncology (Rostov-on-Don, Russia). SPIN-code: 1728-0329.</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>Водолажский</surname><given-names>Д. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Vodolazhskiy</surname><given-names>D. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат биологических наук, руководитель лаборатории молекулярной онкологии ФГБУ «Ростовский научно-исследовательский онкологический институт» Минздрава России (г. Ростов-на-Дону, Российская Федерация). SPIN-код: 6660-5361.</p></bio><bio xml:lang="en"><p>PhD, Head of Laboratory of Molecular Oncology, Rostov Research Institute of Oncology (Rostov-on-Don, Russia). SPIN-code: 6660-5361.</p></bio><email xlink:type="simple">dvodolazhsky@gmail.com</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>Двадненко</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Dvadnenko</surname><given-names>K. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат медицинских наук, старший научный сотрудник лаборатории молекулярной онкологии ФГБУ «Ростовский научно-исследовательский онкологический институт» Минздрава России (г. Ростов-на-Дону, Российская Федерация). SPIN-код: 4497-1769.</p></bio><bio xml:lang="en"><p>MD, Senior Researcher, Laboratory of Molecular Oncology, Rostov Research Institute of Oncology (Rostovon-Don, Russia). SPIN-code: 4497-1769.</p></bio><email xlink:type="simple">sarmatkv@gmail.com</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>Ефимова</surname><given-names>И. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Efimova</surname><given-names>I. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>младший научный сотрудник лаборатории молекулярной онкологии ФГБУ «Ростовский научно-исследовательский онкологический институт» Минздрава России (г. Ростов-на-Дону, Российская Федерация). SPIN-код: 1982-5034.</p></bio><bio xml:lang="en"><p>Junior Researcher, Laboratory of Molecular Oncology, Rostov Research Institute of Oncology (Rostov-on-Don, Russia). SPIN-code: 1982-5034.</p></bio><email xlink:type="simple">9889966451i@gmail.com</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>Олейникова</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Oleynikova</surname><given-names>E. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>младший научный сотрудник лаборатории молекулярной онкологии ФГБУ «Ростовский научно-исследовательский онкологический институт» Минздрава России (г. Ростов-на-Дону, Российская Федерация). SPIN-код: 5840-4093.</p></bio><bio xml:lang="en"><p>Junior Researcher, Laboratory of Molecular Oncology, Rostov Research Institute of Oncology (Rostov-on-Don, Russia). SPIN-code: 5840-4093.</p></bio><email xlink:type="simple">lena_gudueva@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>Олейников</surname><given-names>Д. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Oleynikov</surname><given-names>D. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>младший научный сотрудник лаборатории молекулярной онкологии ФГБУ «Ростовский научно-исследовательский онкологический институт» Минздрава России (г. Ростов-на-Дону, Российская Федерация).</p></bio><bio xml:lang="en"><p>Junior Researcher, Laboratory of Molecular Oncology, Rostov Research Institute of Oncology (Rostov-on-Don, Russia).</p></bio><email xlink:type="simple">110588h@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>Тимошкина</surname><given-names>Н. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Timoshkina</surname><given-names>N. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат биологических наук, старший научный сотрудник лаборатории молекулярной онкологии ФГБУ «Ростовский научно-исследовательский онкологический институт» Минздрава России (г. Ростов-на-Дону, Российская Федерация). SPIN-код: 9483-4330</p></bio><bio xml:lang="en"><p>PhD, Senior Researcher, Laboratory of Molecular Oncology, Rostov Research Institute of Oncology (Rostovon-Don, Russia). SPIN-code: 9483-4330.</p></bio><email xlink:type="simple">n_timoshkina@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «Ростовский научно-исследовательский онкологический институт» Минздрава России, 344036, г. Ростов-на-Дону, ул. 14-я линия, 63.</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Rostov Cancer Research Institute of the Ministry of Health, 63, 14th line Street, 344037-Rostov-on-Don, Russia.</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>14</day><month>07</month><year>2016</year></pub-date><volume>15</volume><issue>2</issue><fpage>48</fpage><lpage>55</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кит О.И., Водолажский Д.И., Двадненко К.В., Ефимова И.И., Олейникова Е.Н., Олейников Д.Д., Тимошкина Н.Н., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Кит О.И., Водолажский Д.И., Двадненко К.В., Ефимова И.И., Олейникова Е.Н., Олейников Д.Д., Тимошкина Н.Н.</copyright-holder><copyright-holder xml:lang="en">Kit O.I., Vodolazhskiy D.I., Dvadnenko K.V., Efimova I.I., Oleynikova E.N., Oleynikov D.D., Timoshkina N.N.</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.siboncoj.ru/jour/article/view/333">https://www.siboncoj.ru/jour/article/view/333</self-uri><abstract><p>Аберрантное метилирование промоторных участков генов – основное эпигенетическое изменение, характеризующее колоректальные неопластические образования. В настоящей работе был исследован количественный уровень метилирования 42 CpG-сайтов промоторных участков генов MGMT, APC и CDH13 в опухолях толстой кишки по отношению к уровню метилирования прилежащей условно нормальной ткани 25 пациентов. С помощью метода пиросеквенирования выявлено повышение уровня метилирования промоторных участков генов MGMT, APC и CDH13 в опухолевых образцах от 3 до 5 раз. В этих же образцах опухолей проведен скрининг активирующих SNP-мутаций в онкогенах KRAS (40 %), NRAS (0 %) и BRAF (0 %). Наличие SNP-мутаций в гене KRAS сопровождалось гиперметилированием одного или более промоторов исследованных генов. Доказана ассоциация этого эпигенетического показателя с метастазированием опухоли. Полученные данные об увеличении метилирования промоторных участков генов-онкосупрессоров могут быть использованы в качестве чувствительных прогностических маркеров прогрессирования и метастазирования колоректального рака.</p></abstract><trans-abstract xml:lang="en"><p>Aberrant methylation of gene promoter regions is the main epigenetic change characterizing colorectal cancer. Methylation levels of 42 CpG-sites of promoter regions of the MGMT, APC and CDH13 genes in colorectal cancer were studied in comparison with methylation levels of the adjacent normal tissue in 25 patients. Pyrosequencing showed an increase in methylation levels of promoter regions of the MGMT, APC and CDH13 genes in tumor samples by 3 to 5 times. These tumor samples were screened for activating SNP-mutations in the KRAS (40 %), NRAS (0 %) and BRAF (0 %) oncogenes. SNP-mutations in the KRAS gene were accompanied by hypermethylation of one or more promoters of the studied genes. Association of this epigenetic index with tumor metastasis was proved. The data on an increase in methylation of the promoter regions of oncosupressor genes can be used as sensitive prognostic markers of progression and metastasis of colorectal cancer.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>CpG-метилирование</kwd><kwd>колоректальный рак</kwd><kwd>гены MGMT</kwd><kwd>APC</kwd><kwd>CDH13</kwd><kwd>CIMP</kwd></kwd-group><kwd-group xml:lang="en"><kwd>CpG-methylation</kwd><kwd>colorectal cancer</kwd><kwd>MGMT</kwd><kwd>APC</kwd><kwd>CDH13</kwd><kwd>CIMP</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">Корниенко И.В., Водолажский Д.И., Вейко В.П., Щербаков В.В., Иванов П.Л. Подготовка биологического материала для молекулярно-генетических идентификационных исследований при массовом поступлении неопознанных тел. 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