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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="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Russian Journal of Infection and Immunity</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Infection and Immunity</journal-title><trans-title-group xml:lang="ru"><trans-title>Инфекция и иммунитет</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2220-7619</issn><issn publication-format="electronic">2313-7398</issn><publisher><publisher-name xml:lang="en">SPb RAACI</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">1146</article-id><article-id pub-id-type="doi">10.15789/2220-7619-IVI-1146</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">In vitro interaction of hormone-conditioned neutrophils with commensal and uropathogenic <italic>Escherichia coli biofilms</italic></article-title><trans-title-group xml:lang="ru"><trans-title>Взаимодействие нейтрофилов, предобработанных гормонами, с биопленками комменсального и уропатогенного штаммов <italic>Escherichia coli in vitro</italic></trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2776-8023</contrib-id><name-alternatives><name xml:lang="en"><surname>Maslennikova</surname><given-names>I. L.</given-names></name><name xml:lang="ru"><surname>Масленникова</surname><given-names>И. Л.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Irina L. Maslennikova - PhD (Biology), Senior Researcher, Laboratory of Immunoregulation.</p><p>614081, Perm, Goleva str., 13, Phone: +7 922 317-87-77 (mobile)</p></bio><bio xml:lang="ru"><p>Масленникова Ирина Леонидовна - кандидат биологических наук, старший научный сотрудник лаборатории иммунорегуляции.</p><p>614081, Пермь, ул. Голева, 13, Тел.: 8 922 317-87-77 (моб.)</p></bio><email>I.Maslennikova1974@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Nekrasova</surname><given-names>I. V.</given-names></name><name xml:lang="ru"><surname>Некрасова</surname><given-names>И. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Nekrasova I.V., PhD (Biology), Researcher, Laboratory of Immunoregulation.</p><p>Perm</p></bio><bio xml:lang="ru"><p>Кандидат биологических наук, научный сотрудник лаборатории иммунорегуляции.</p><p>Пермь</p></bio><email>nirina5@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Orlova</surname><given-names>E. G.</given-names></name><name xml:lang="ru"><surname>Орлова</surname><given-names>Е. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Orlova E.G., PhD, MD (Biology), Leading Researcher, Laboratory of Immunoregulation.</p><p>Perm</p></bio><bio xml:lang="ru"><p>Доктор биологических наук, ведущий научный сотрудник лаборатории иммунорегуляции.</p><p>Пермь</p></bio><email>orlova_katy@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gorbunova</surname><given-names>O. L.</given-names></name><name xml:lang="ru"><surname>Горбунова</surname><given-names>О. Л.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Gorbunova O.L., PhD (Biology), Researcher, Laboratory of Immunoregulation.</p><p>Perm</p></bio><bio xml:lang="ru"><p>Кандидат биологических наук, научный сотрудник лаборатории иммунорегуляции.</p><p>Пермь</p></bio><email>olia15_77@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shirshev</surname><given-names>S. V.</given-names></name><name xml:lang="ru"><surname>Ширшев</surname><given-names>С. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD, MD (Medicine), Professor, Head of Laboratory of Immunoregulation.</p><p>Perm</p></bio><bio xml:lang="ru"><p>Доктор медицинских наук, профессор, зав. лабораторией иммунорегуляции.</p><p>Пермь</p></bio><email>shirshev@iegm.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute of Ecology and Genetics of Microrganisms Ural Branch Russian Academy of Science</institution></aff><aff><institution xml:lang="ru">Институт экологии и генетики микроорганизмов, Уральское отделение Российской академии наук — филиал Федерального государственного бюджетного учреждения науки Пермский федеральный исследовательский центр, Уральское отделение РАН</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Institute of Ecology and Genetics of Microorganisms Ural Branch Russian Academy of Science</institution></aff><aff><institution xml:lang="ru">Институт экологии и генетики микроорганизмов, Уральское отделение Российской академии наук — филиал Федерального государственного бюджетного учреждения науки Пермский федеральный исследовательский центр, Уральское отделение РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2020-04-07" publication-format="electronic"><day>07</day><month>04</month><year>2020</year></pub-date><volume>10</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>64</fpage><lpage>72</lpage><history><date date-type="received" iso-8601-date="2019-02-12"><day>12</day><month>02</month><year>2019</year></date><date date-type="accepted" iso-8601-date="2019-06-10"><day>10</day><month>06</month><year>2019</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2020, Maslennikova I.L., Nekrasova I.V., Orlova E.G., Gorbunova O.L., Shirshev S.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2020, Масленникова И.Л., Некрасова И.В., Орлова Е.Г., Горбунова О.Л., Ширшев С.В.</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="en">Maslennikova I.L., Nekrasova I.V., Orlova E.G., Gorbunova O.L., Shirshev S.V.</copyright-holder><copyright-holder xml:lang="ru">Масленникова И.Л., Некрасова И.В., Орлова Е.Г., Горбунова О.Л., Ширшев С.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://iimmun.ru/iimm/article/view/1146">https://iimmun.ru/iimm/article/view/1146</self-uri><abstract xml:lang="en"><p>The aim of the work was to examine an interaction between neutrophils conditioned with chorionic gonadotropin, estriol, kisspeptin, leptin, ghrelin and commensal and uropathogenic Escherichia coli biofilms. Peripheral blood neutrophils isolated from healthy non-pregnant women in the first phase of the menstrual cycle (n = 8) were cultured in vitro for 1 hour together with hormones at concentration corresp onding to their level in the first and third trimester of pregnancy. An interaction of neutrophils with commensal E. coli TG1 and uropathogenic E. coli DL82 (UPEC) biofilms was assessed 1 hour later. The biofilm biomass, activity of myeloperoxidase and cathepsin G was measured spectrophotometrically on a microplate reader Synergy H1 (BioTec, USA). Neutrophils conditioned with chorionic gonadotropin (10; 100 IU/ml), estriol (2; 20 ng/ml) and leptin (10 ng/ml) were found to enhance their potential to destroy solely opsonized commensal E. coli biofilm, without affecting the UPEC biofilm. The biomass of non-opsonized biofilm of commensal E. coli TG1 decreased after interaction with neutrophils conditioned with estriol (2 ng/ml), kisspeptin (9.6 pM) and ghrelin (0.83 ng/ml). In contrast, non-opsonized UPEC biofilm was more destroyed by neutrophils exposed to low- vs. high-dose chorionic gonadotropin (10 IU/ml and 100 IU/ml, respectively) or control group. Myeloperoxidase secretion increased when UPEC interacted with neutrophils conditioned with estriol at concentration of 2 ng/ml. Comparing the two E. coli strains allowed to find that chorionic gonadotropin (10 IU/ml) and estriol (20 ng/ml) enhanced activity of neutrophil myeloperoxidase after interaction with UPEC biofilms to a greater extent than with E. coli TG1 biofilms. Estriol (20 ng/ml) and kisspeptin (9 pM) reduced activity of neutrophil cathepsin G after interaction with UPEC biofilms.</p></abstract><trans-abstract xml:lang="ru"><p>Цель работы — изучить взаимодействие нейтрофилов, предобработанных хорионическим гонадотропином, эстриолом, кисспептином, лептином и грелином, с биопленками комменсального и уропатоген-ного штаммов <italic>Escherichia coli</italic>. Нейтрофилы периферической крови здоровых небеременных женщин I фазы менструального цикла (n = 8) культивировали в течение часа с гормонами в концентрации, соответствующей уровню I и III триместра беременности. Взаимодействие нейтрофилов с биопленками комменсального E. coli TG1 и уропатогенного E. coli DL82 (UPEQ штаммов оценивали после часового контакта. Биомасса биопленки штаммов, активность миелопероксидазы и катепсина G оценивалась спектрофотометрически на мультипланшетном ридере «Synergy™ H1» (BioTec, США). Установлено, что предобработка нейтрофилов хорионическим гонадотропином (10; 100 МЕ/мл), эстриолом (2; 20 нг/мл) и лептином (10 нг/мл) усиливала способность нейтрофилов разрушать опсонизированную биопленку только у комменсального штамма, не влияя на биопленку UPEC Биомасса неопсонизированной биопленки комменсального E. coli TG1 снижалась после взаимодействия с нейтрофилами, предобработанными эстриолом (2 нг/мл), кисспептином (9,6 пМ) и грелином (0,83 нг/мл). Для UPEС только при действии на нейтрофилы хорионического гонадотропина (10 МЕ/мл) отмечено большее разрушение неопсонизированной биопленки как по сравнению с контролем, так и по сравнению с концентрацией гормона 100 МЕ/мл. Секреция миелопероксидазы повышалась при взаимодействии UPEС c нейтрофилами, предобработанными эстриолом в концентрации 2 нг/мл. При сравнении двух штаммов отмечено, что хорионический гонадотропин (10 МЕ/мл) и эстриол (20 нг/мл) усиливали активность миелопероксидазы нейтрофилов после взаимодействия с биопленками UPEС в большей степени по сравнению с биопленками E. coli TG1. Гормоны, эстриол (20 нг/мл) и кисспептин (9 пМ), снижали активность катепсина G нейтрофилов при взаимодействии с биопленками UPEC</p></trans-abstract><kwd-group xml:lang="en"><kwd>biofilms</kwd><kwd>E. coli</kwd><kwd>UPEC</kwd><kwd>neutrophils</kwd><kwd>chorionic gonadotropin</kwd><kwd>estriol</kwd><kwd>leptin</kwd><kwd>ghrelin</kwd><kwd>kisspeptin</kwd><kwd>cathepsin G</kwd><kwd>myeloperoxidase</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>биопленки</kwd><kwd>E. coli</kwd><kwd>UPEС</kwd><kwd>нейтрофилы</kwd><kwd>хорионический гонадотропин</kwd><kwd>эстриол</kwd><kwd>лептин</kwd><kwd>грелин</kwd><kwd>кисспептин</kwd><kwd>катепсин G</kwd><kwd>миелопероксидаза</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания, № Гос. регистрации: 01201353248</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>1.	Горбунова О.Л., Ширшев С.В. 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