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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="brief-report" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Journal of microbiology, epidemiology and immunobiology</journal-id><journal-title-group><journal-title xml:lang="en">Journal of microbiology, epidemiology and immunobiology</journal-title><trans-title-group xml:lang="ru"><trans-title>Журнал микробиологии, эпидемиологии и иммунобиологии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0372-9311</issn><issn publication-format="electronic">2686-7613</issn><publisher><publisher-name xml:lang="en">Central Research Institute for Epidemiology</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">14158</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>Short Communication</subject></subj-group></article-categories><title-group><article-title xml:lang="en">STUDY OF THE ROLE OF INNATE IMMUNITY FACTORS (TLR2, HBD-2, TNF-a, TGF-P) IN PERIODONTITIS PATHOGENESIS</article-title><trans-title-group xml:lang="ru"><trans-title>ИЗУЧЕНИЕ РОЛИ ФАКТОРОВ ВРОЖДЕННОГО ИММУНИТЕТА (TLR2, HBD-2, TNF-a, TGF-P) В ПАТОГЕНЕЗЕ ПАРОДОНТИТА</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gankovskaya</surname><given-names>L. V</given-names></name><name xml:lang="ru"><surname>Ганковская</surname><given-names>Л. В</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Helminskaya</surname><given-names>N. M</given-names></name><name xml:lang="ru"><surname>Хелминская</surname><given-names>Н. М</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Svitich</surname><given-names>O. A</given-names></name><name xml:lang="ru"><surname>Свитич</surname><given-names>О. А</given-names></name></name-alternatives><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Molchanova</surname><given-names>E. A</given-names></name><name xml:lang="ru"><surname>Молчанова</surname><given-names>Е. А</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Grechenko</surname><given-names>V. V</given-names></name><name xml:lang="ru"><surname>Греченко</surname><given-names>В. В</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sokolova</surname><given-names>E. V</given-names></name><name xml:lang="ru"><surname>Соколова</surname><given-names>Е. В</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Rusanova</surname><given-names>K. V</given-names></name><name xml:lang="ru"><surname>Русанова</surname><given-names>К. В</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Pirogov Russian National Research Medical University</institution></aff><aff><institution xml:lang="ru">Российский национальный исследовательский медицинский университет им. Н.И.Пирогова</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Mechnikov Research Institute of Vaccines and Sera</institution></aff><aff><institution xml:lang="ru">НИИ вакцин и сывороток им. И.И.Мечникова</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2015-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2015</year></pub-date><volume>92</volume><issue>6</issue><issue-title xml:lang="en">NO6 (2015)</issue-title><issue-title xml:lang="ru">№6 (2015)</issue-title><fpage>93</fpage><lpage>97</lpage><history><date date-type="received" iso-8601-date="2023-06-09"><day>09</day><month>06</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2015, Gankovskaya L.V., Helminskaya N.M., Svitich O.A., Molchanova E.A., Grechenko V.V., Sokolova E.V., Rusanova K.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2015, Ганковская Л.В., Хелминская Н.М., Свитич О.А., Молчанова Е.А., Греченко В.В., Соколова Е.В., Русанова К.В.</copyright-statement><copyright-year>2015</copyright-year><copyright-holder xml:lang="en">Gankovskaya L.V., Helminskaya N.M., Svitich O.A., Molchanova E.A., Grechenko V.V., Sokolova E.V., Rusanova K.V.</copyright-holder><copyright-holder xml:lang="ru">Ганковская Л.В., Хелминская Н.М., Свитич О.А., Молчанова Е.А., Греченко В.В., Соколова Е.В., Русанова К.В.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://microbiol.crie.ru/jour/article/view/14158">https://microbiol.crie.ru/jour/article/view/14158</self-uri><abstract xml:lang="en"><p>Aim. Study of the role of innate immunity factors, namely, expression of TLR2 and HBD-2 genes, as well as TNF-a and TGF-P in pathogenesis of periodontium tissue inflammation. Materials and methods. 59 individuals with periodontitis illnesses were included into the study; 15 healthy donors represented the comparison group. Study of the TLR2 and HBD-2 gene expression levels was carried out by rRT-PCR, cytokine production evaluation - by EIA. Results. The results of the study have shown the presence of TLR-mediated disbalance in the innate immunity system in the periodontium tissue during chronic generalized periodontitis. TLR2 gene hyperexpression was accompanied by the reduction of expression of anti-microbial peptide HBD-2, as well as an increase of production of TNF-a and TGF-P by epithelial cells of periodontium mucosa. Conclusion. The study carried out has shown that disturbance of molecular mechanisms of innate immunity system has an important place in pathogenesis of periodontitis.</p></abstract><trans-abstract xml:lang="ru"><p>Цель. Изучение роли факторов врожденного иммунитета, а именно, экспрессии генов TLR2 и HBD-2, а также TNF-a и TGF-P в патогенезе воспаления тканей пародонта. Материалы и методы. В исследование были включены 59 чел. с заболеваниями парадонтита; группу сравнения представляли 15 здоровых доноров. Исследование уровня экспрессии генов TLR2 и HBD-2 проводилось с помощью ОТ-ПЦР-РВ, оценка выработки цитокинов - с помощью ИФА. Результаты. Результаты исследований показали наличие ТLR-опосредованного дисбаланса в системе врожденного иммунитета в ткани пародонта при хроническом генерализованном парадонтите (ХГП). Гиперэкспрессия гена TLR2 сопровождалась снижением экспрессии гена противомикробного пептида HBD-2, а также увеличением выработки TNF-a и TGF-P эпителиальными клетками слизистой пародонта. Заключение. Проведенное исследование показало, что в патогенезе пародонтита важное место занимает нарушение молекулярных механизмов системы врожденного иммунитета.</p></trans-abstract><kwd-group xml:lang="en"><kwd>periodontitis</kwd><kwd>Toll-like receptors</kwd><kwd>defensins</kwd><kwd>cytokines</kwd><kwd>innate immunity</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>пародонтит</kwd><kwd>Toll-подобные рецепторы</kwd><kwd>дефенсины</kwd><kwd>цитокины</kwd><kwd>врожденный иммунитет</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Боровский Е.В., Иванов В.С., Максимовский Ю.М. и др. Терапевтическая стоматология. М., Медицина,1998.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Ганковская О.А. 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