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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 custom-type="elpub" pub-id-type="custom">oncotomsk-173</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>ИММУНОГИСТОХИМИЧЕСКОЕ ИССЛЕДОВАНИЕ MSH2, MSH6, PMS2, MLH1 В ОПРЕДЕЛЕНИИ СТЕПЕНИ ЗЛОКАЧЕСТВЕННОСТИ АДЕНОКАРЦИНОМЫ ТОЛСТОЙ КИШКИ</article-title><trans-title-group xml:lang="en"><trans-title>IMMUNOHISTOCHEMICAL STUDY OF MSH2, MSH6, PMS2, MLH1 IN EVALUATION OF DIFFERENTIATION GRADE OF COLON ADENOCARCINOMA</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>Раскин</surname><given-names>Г. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Raskin</surname><given-names>G. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Раскин Григорий Александрович, кандидат медицинских наук, ведущий научный сотрудник. </p><p>E-mail: rasking@list.ru. </p></bio><bio xml:lang="en"><p>Raskin Grigory Alexandrovich, MD, PhD, Leading Researcher.</p><p>E-mail: rasking@list.ru. SPIN-code: 4569-9756</p></bio><email xlink:type="simple">rasking@list.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>Петров</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Petrov</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Петров Семен Венедиктович, доктор медицинских наук, профессор кафедры патологии. </p><p>SPIN-код: 3237-4735</p></bio><bio xml:lang="en"><p>Petrov Semyen Venediktovich, MD, Professor, Pathology Department. </p><p>SPIN-код: 3237-4735</p></bio><email xlink:type="simple">rasking@list.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>Орлова</surname><given-names>Р. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Orlova</surname><given-names>R. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Орлова Рашида Вахидовна, доктор медицинских наук, профессор, заведующая кафедрой онкологии, медицинский факультет,Санкт-Петербургский государственный университет. </p><p>SPIN-код: 9932-6170</p></bio><bio xml:lang="en"><p>Orlova Rashida Vakhidovna, MD, Professor, Head of Oncology Department, Medical Faculty, Saint Petersburg State University. </p><p>SPIN-code: 9932-617</p></bio><email xlink:type="simple">rasking@list.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Российский научный центр радиологии и хирургических технологий, Санкт-Петербург;&#13;
Санкт-Петербургский государственный университет, Санкт-Петербург<country>Россия</country></aff><aff xml:lang="en">Russian Research Center for Radiology and Surgical Technologies, Saint Petersburg; &#13;
Saint Petersburg State University<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Казанский государственный медицинский университет<country>Россия</country></aff><aff xml:lang="en">Kazan State Medical University<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2015</year></pub-date><pub-date pub-type="epub"><day>19</day><month>02</month><year>2016</year></pub-date><volume>1</volume><issue>5</issue><fpage>80</fpage><lpage>83</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Раскин Г.А., Петров С.В., Орлова Р.В., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Раскин Г.А., Петров С.В., Орлова Р.В.</copyright-holder><copyright-holder xml:lang="en">Raskin G.A., Petrov S.V., Orlova R.V.</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.siboncoj.ru/jour/article/view/173">https://www.siboncoj.ru/jour/article/view/173</self-uri><abstract><p>Микросателлитная нестабильность связана с нарушением функций генов MSH2, MLH1, PMS2 и MSH6, которые в норме осуществляют репарацию неспаренных нуклеотидов ДНК. В настоящее время известно, что микросателлитная нестабильность – это независимый прогностический фактор, определяющий степень злокачественности рака толстой кишки. Использование иммуногистохимии для исследования системы репарации неспаренных нуклеотидов имеет свои особенности и ограничения. Материал и методы. В исследование вошло 39 больных аденокарциномой толстой кишки из них умереннодифференцированная аденокарцинома – 28 (72 %), высокодифференцированная аденокарцинома – 3 (8 %), низкодифференцированная аденокарцинома – 5 (12 %), муцинозная аденокарцинома – 3 (8 %) случая. Иммуногистохимически по стандартному протоколу исследовались белки генов MSH2, MSH6, PMS2, MLH1. Результаты. Из 39 исследованных случаев в 6 (15 %) наблюдениях было выявлено выпадение экспрессии как минимум одного из исследованных маркеров. Из 6 полученных случаев с косвенными признаками MSI-H три аденокарциномы были низкодифференцированными, 1 – муцинозной, 2 – умереннодифференцированными. Заключение. Иммуногистохимическое исследование генов репарации ДНК может быть использовано для определения степени злокачественности аденокарциномы толстой кишки совместно с оценкой гистологической дифференцировки опухоли. При использовании только гистологической дифференцировки для определения степени злокачественности аденокарциномы толстой кишки в 10 % случаев она будет оценена неверно.</p></abstract><trans-abstract xml:lang="en"><p>Microsatellite instability is associated with dysfunction of the MSH2, MLH1, PMS2 and MSH6 genes, which participate in the repair of unpaired nucleotides of DNA. It is known that microsatellite instability is an independent prognostic factor in determining the differentiation grade of colon cancer. The use of immunohistochemistry to study the repair system of unpaired nucleotides has its own characteristics and limitations. Materials and methods. The study included 39 patients with colon adenocarcinoma. Moderately-differentiated colon adenocarcinoma was the most common histological type (72 %). There were 8 % of well-differentiated and 12 % poorly-differentiated carcinomas. Immunohistochemical analysis of SH2, MSH6, PMS2 and MLH1 proteins was done according to the standard protocol. Results. Out of 39 cases, 6 (15 %) had loss of expression of at least one of the studied proteins. Out of these 6 cases with indirect signs of MSI-H, 3 were poorlydifferentiated, 1 was mucinous and 2 were moderately differentiated adenocarcinomas. Conclusion. Thus, immunohistochemical analysis of DNA repair genes can be used to determine the histological differentiation of colon adenocarcinoma.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>микросателлитная нестабильность</kwd><kwd>аденокарцинома толстой кишки</kwd><kwd>MSH2</kwd><kwd>MSH6</kwd><kwd>PMS2</kwd><kwd>MLH1</kwd></kwd-group><kwd-group xml:lang="en"><kwd>microsatellite instability</kwd><kwd>colon adenocarcinoma</kwd><kwd>MSH2</kwd><kwd>MSH6</kwd><kwd>PMS2</kwd><kwd>MLH1</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">Раскин Г.А., Янус Г.А., Корнилов А.В., Орлова Р.В., Петров С.В., Протасова А.Э., Пожарисский К.М., Имянитов Е.Н. Иммуногистохимическое исследование MSH2, PMS2, MLH1, MSH6 в сопоставлении с анализом микросателлитной нестабильности в аденокарциноме толстой кишки // Вопросы онкологии. 2014. Т. 60, № 2. С. 47–50.</mixed-citation><mixed-citation xml:lang="en">Raskin G.A., Janus G.A., Kornilov A.V., Orlova R.V., Petrov S.V., Protasova A.Je., Pozharisskij K.M., Imjanitov E.N. Immunohistochemistry of MSH2, PMS2, MLH1, MSH6 versus microsatellite instability in colon adenocarcinoma // Voprosy onkologii. 2014. Vol. 60 (2). P. 47–50. [in Russian]</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Bosman F.T., Carneiro F., Hruban R.H., Theise N.D. WHO classification of tumors the digestive system. Lyon: IARC Press, 2010. 417 p.</mixed-citation><mixed-citation xml:lang="en">Bosman F.T., Carneiro F., Hruban R.H., Theise N.D. WHO classification of tumors the digestive system. Lyon: IARC Press, 2010. 417 p.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Harfe B.D., Minesinger B.K., Jinks-Robertson S. Discrete in vivo roles for the MutL homologs MIh2p and MIh3p in the removal of frameshift intermediates in budding yeast // Curr. Biol. 2000.Vol. 10 (3). P. 145–148.</mixed-citation><mixed-citation xml:lang="en">Harfe B.D., Minesinger B.K., Jinks-Robertson S. Discrete in vivo roles for the MutL homologs MIh2p and MIh3p in the removal of frameshift intermediates in budding yeast // Curr. Biol. 2000.Vol. 10 (3). P. 145–148.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Kadyrov F.A., Dzantiev L., Constantin N., Modrich P. Endonucleolytic function of MutLalpha in human mismatch repair // Cell. 2006. Vol. 126 (2). P. 297–308.</mixed-citation><mixed-citation xml:lang="en">Kadyrov F.A., Dzantiev L., Constantin N., Modrich P. Endonucleolytic function of MutLalpha in human mismatch repair // Cell. 2006. Vol. 126 (2). P. 297–308.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Kamat N., Khidhir M.A., Alashari M.M., Rannug U. Microsatellite instability and loss of heterozygosity detected in middle-aged patients with sporadic colon cancer: A retrospective study // Oncol. Lett. 2013. Vol. 6 (5). P. 1413–1420.</mixed-citation><mixed-citation xml:lang="en">Kamat N., Khidhir M.A., Alashari M.M., Rannug U. Microsatellite instability and loss of heterozygosity detected in middle-aged patients with sporadic colon cancer: A retrospective study // Oncol. Lett. 2013. Vol. 6 (5). P. 1413–1420.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Kheirelseid E.A., Miller N., Chang K.H., Curran C., Hennessey E., Sheehan M., Kerin M.J. Mismatch repair protein expression in colorectal cancer // J. Gastrointest. Oncol. 2013. Vol. 4. P. 397–408. doi: 10.3978/j.issn.2078-6891.2013.021.</mixed-citation><mixed-citation xml:lang="en">Kheirelseid E.A., Miller N., Chang K.H., Curran C., Hennessey E., Sheehan M., Kerin M.J. Mismatch repair protein expression in colorectal cancer // J. Gastrointest. Oncol. 2013. Vol. 4. P. 397–408. doi: 10.3978/j.issn.2078-6891.2013.021.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Kinzler K.W., Vogelstein B. Lessons from hereditary colorectal cancer // Cell. 1996. Vol. 87 (2). P. 159–170.</mixed-citation><mixed-citation xml:lang="en">Kinzler K.W., Vogelstein B. Lessons from hereditary colorectal cancer // Cell. 1996. Vol. 87 (2). P. 159–170.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Lindor N.M., Burgart L.J., Leontovich O., Goldberg R.M., Cunningham J.M., Sargent D.J., Walsh-Vockley C., Petersen G.M., Walsh M.D., Leggett B.A., Young J.P., Barker M.A., Jass J.R., Hopper J., Gallinger S., Bapat B., Redston M., Thibodeau S.N. Immunohistochemistry versus microsatellite instability testing in phenotyping colorectal tumors // J. Clin. Oncol. 2002. Vol. 20 (4). P. 1043–1048.</mixed-citation><mixed-citation xml:lang="en">Lindor N.M., Burgart L.J., Leontovich O., Goldberg R.M., Cunningham  J.M., Sargent D.J., Walsh-Vockley C., Petersen G.M., Walsh M.D., Leggett B.A., Young J.P., Barker M.A., Jass J.R., Hopper J., Gallinger S., Bapat B., Redston M., Thibodeau S.N. Immunohistochemistry versus microsatellite instability testing in phenotyping colorectal tumors // J. Clin. Oncol. 2002. Vol. 20 (4). P. 1043–1048.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Peltomaki P., Vasen H. Mutations associated with HNPCC predisposition – Update of ICG-HNPCC/INSiGHT mutation database // Dis. Markers. 2004. Vol. 20 (4–5). P. 269–276.</mixed-citation><mixed-citation xml:lang="en">Peltomaki P., Vasen H. Mutations associated with HNPCC predisposition – Update of ICG-HNPCC/INSiGHT mutation database // Dis. Markers. 2004. Vol. 20 (4–5). P. 269–276.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Shia J. Immunohistochemistry versus Microsatellite Instability Testing For Screening Colorectal Cancer Patients at Risk for Hereditary Nonpolyposis Colorectal Cancer Syndrome. Part I. The Utility of Immunohistochemistry // J. Mol. Diagn. 2008. Vol. 10 (4). P. 293–300. doi: 10.2353/jmoldx.2008.080031.</mixed-citation><mixed-citation xml:lang="en">Shia J. Immunohistochemistry versus Microsatellite Instability Testing For Screening Colorectal Cancer Patients at Risk for Hereditary Nonpolyposis Colorectal Cancer Syndrome. Part I. The Utility of Immunohistochemistry // J. Mol. Diagn. 2008. Vol. 10 (4). P. 293–300. doi: 10.2353/jmoldx.2008.080031.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
