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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Russian Journal of Oncology</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Oncology</journal-title><trans-title-group xml:lang="ru"><trans-title>Российский онкологический журнал</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1028-9984</issn><issn publication-format="electronic">2412-9119</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">40322</article-id><article-id pub-id-type="doi">10.18821/10289984-2016-21-4-201-206</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Plasminogen and PAI-1 activators in tissues of adenocarcinoma and squamous cell carcinoma of the esophagus</article-title><trans-title-group xml:lang="ru"><trans-title>Активаторы плазминогена и PAI-1 в тканях аденокарциномы и плоскоклеточного рака пищевода</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kit</surname><given-names>O. I</given-names></name><name xml:lang="ru"><surname>Кит</surname><given-names>О. И</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kolesnikov</surname><given-names>E. N</given-names></name><name xml:lang="ru"><surname>Колесников</surname><given-names>Е. Н</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Frantsiyants</surname><given-names>E. M</given-names></name><name xml:lang="ru"><surname>Франциянц</surname><given-names>Е. М</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kozlova</surname><given-names>Larisa S.</given-names></name><name xml:lang="ru"><surname>Козлова</surname><given-names>Лариса Степановна</given-names></name></name-alternatives><bio xml:lang="en"><p>MD, PhD, associate professor, senior researcher of the hormonal laboratory</p></bio><bio xml:lang="ru"><p>канд. биол. наук, доцент, старший научный сотрудник</p></bio><email>79094277471@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Pogorelova</surname><given-names>Yu. A</given-names></name><name xml:lang="ru"><surname>Погорелова</surname><given-names>Ю. А</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Cheryarina</surname><given-names>N. D</given-names></name><name xml:lang="ru"><surname>Черярина</surname><given-names>Н. Д</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Chugunova</surname><given-names>N. S</given-names></name><name xml:lang="ru"><surname>Чугунова</surname><given-names>Н. С</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Rostov Research Institute of Oncology</institution></aff><aff><institution xml:lang="ru">ФГБУ «Ростовский научно-исследовательский онкологический институт» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2016-08-15" publication-format="electronic"><day>15</day><month>08</month><year>2016</year></pub-date><volume>21</volume><issue>4</issue><issue-title xml:lang="en">VOL 21, NO4 (2016)</issue-title><issue-title xml:lang="ru">ТОМ 21, №4 (2016)</issue-title><fpage>201</fpage><lpage>206</lpage><history><date date-type="received" iso-8601-date="2020-07-22"><day>22</day><month>07</month><year>2020</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2016, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2016, ООО "Эко-Вектор"</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="en">Eco-Vector</copyright-holder><copyright-holder xml:lang="ru">ООО "Эко-Вектор"</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://rjonco.com/1028-9984/article/view/40322">https://rjonco.com/1028-9984/article/view/40322</self-uri><abstract xml:lang="en"><p>Aim. The purpose of the study was to perform the comparative analysis of the components ofplasminogen activation system - uPA and tPA, and their inhibitor PAI-1 in tissues of esophageal adenocarcinoma (EA) and squamous cell carcinoma (SCC). Tissues of removed primary both EA (n=9, st II, G2, T2-3N0-1M0-1) and SCC (n=27, st II, G2, T2-3N0-1M0-1) were studied by ELISA. Results. EA and SCC tumor tissues showed a sharp increase in both uPA forms and in PAI-1, in EA tissue there was noted a decrease in all tPA and in SCC tissue there was seen a decline in tPA-act, compared to the resection line (RL). Perifocal zone of EA showed diminished uPA-Ag, all tPA, increased uPA-act and all PAI-1, compared to the RL. uPA and PAI-1 play an important role in progression of both SCC and EA. The role of tPA requires the further studying, but in SCC perifocal zone its impact may be rather harmful than protective. tPA-Ag/tPA-act balance was increased in SCC tissue only, while in other samples it was decreased (p&lt;0.01) or had a clear tendency to decrease (p≤0.05), compared to RL area. Conclusions. 1. Concentrations of uPA-act and PAI-1 in tumors and surrounding tissues were significantly higher than in RL in both squamous cell carcinoma and adenocarcinoma; the imbalance between antigen and active uPA forms and PAI-1 was observed in all the cases. 2. tPA concentration was higher in adenocarcinoma RL than in tumor and its perifocal zone, while in perifocal zone of squamous cell carcinoma of the esophagus it was higher than in other tissue samples. 3. uPA, PAI-1 and probably tPA can become the targets for the therapy for esophageal squamous cell carcinoma and adenocarcinoma.</p></abstract><trans-abstract xml:lang="ru"><p>Цель - изучение компонентов системы активации плазминогена uPA, tPA, их ингибитора PAI-1 в тканях аденокарциномы (АК) и плоскоклеточного рака пищевода (ПР) в сравнительном аспекте. Методом ИФА исследована удаленная ткань первичной АК (n = 9, стадия II, G2, T2-3N0-1M0-1) и первичного ПР (n = 27, стадия II, G2, T2-3N0-1M0-1). Результаты. В ткани опухоли АК и ПР резко повышены обе формы uPA и PAI-1, в АК снижен весь tPA и в ПР - tPA-акт, относительно линии резекции (ЛР). В перифокальной зоне АК снижены uPA-АГ, весь tPA, повышены uPA-акт и весь PAI-1 сравнительно с ЛР. В прогрессировании и ПР, и АК uPA и PAI-1 играют главную роль. Роль tPA требует дальнейшего изучения, но в перифокальной зоне ПР он может играть не столько защитную, сколько повреждающую роль. Баланс tPA-АГ/tPA-акт повышен только в ткани опухоли ПР, в остальных образцах снижен (p &lt; 0,01) или имеет четкую тенденцию к снижению (p ≤ 0,05) сравнительно с областью ЛР. Выводы. 1. Концентрация uPA-акт и PAI-1 в опухолях и окружающих их тканях была достоверно выше, чем в области ЛР и для ПР пищевода, и для АК, во всех случаях нарушен баланс между антигенной и активной формами uPA и PAI-1. 2. Концентрация tPA была выше в области ЛР АК, чем в ткани опухоли и ее перифокальной зоны, но в перифокальной зоне ПР - выше, чем во всех остальных образцах ткани. 3. При ПР пищевода и АК как uPA и PAI-1 так и, возможно, tPA могут стать мишенями лекарственной терапии.</p></trans-abstract><kwd-group xml:lang="en"><kwd>esophagus</kwd><kwd>squamous cell carcinoma</kwd><kwd>adenocarcinoma</kwd><kwd>plasminogen activators</kwd><kwd>PAI-1 inhibitor</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>пищевод</kwd><kwd>плоскоклеточный рак</kwd><kwd>аденокарцинома</kwd><kwd>активаторы плазминогена</kwd><kwd>ингибитор PAI-1</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Masson V. Roles of serine proteases and matrix metalloproteinases in tumor invasion and angiogenesis. Bull. Mem. Acad. Roy. Med. Belg. 2006; 161(5): 320-6.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Айсина Р.Б., Мухаметова Л.И. Структура и функции системы плазминоге/плазмин. Биоорганическая химия. 2014; 40(6): 642-57. Review. 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