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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">vavilov</journal-id><journal-title-group><journal-title xml:lang="ru">Вавиловский журнал генетики и селекции</journal-title><trans-title-group xml:lang="en"><trans-title>Vavilov Journal of Genetics and Breeding</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2500-3259</issn><publisher><publisher-name>Institute of Cytology and Genetics of Siberian Branch of the RAS</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18699/VJ21.49-o</article-id><article-id custom-type="elpub" pub-id-type="custom">vavilov-2887</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>ГЕНЕТИКА МИКРООРГАНИЗМОВ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MICROBIAL GENETICS</subject></subj-group></article-categories><title-group><article-title>Генетическая характеристика клинических изолятов клебсиелл, циркулирующих в Новосибирске</article-title><trans-title-group xml:lang="en"><trans-title>Genetic characterization of clinical Klebsiella isolates circulating in Novosibirsk</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3872-4122</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бардашева</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bardasheva</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск</p></bio><bio xml:lang="en"><p>Novosibirsk</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>Фоменко</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Fomenko</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск</p></bio><bio xml:lang="en"><p>Novosibirsk</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Калымбетова</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kalymbetova</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск</p></bio><bio xml:lang="en"><p>Novosibirsk</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7158-3774</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бабкин</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Babkin</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск</p></bio><bio xml:lang="en"><p>Novosibirsk</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>Кретьен</surname><given-names>С. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Chretien</surname><given-names>S. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск</p></bio><bio xml:lang="en"><p>Novosibirsk</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6787-8393</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жираковская</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhirakovskaya</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск</p></bio><bio xml:lang="en"><p>Novosibirsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1687-8278</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тикунова</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tikunova</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск</p></bio><bio xml:lang="en"><p>Novosibirsk</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0869-3476</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Морозова</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Morozova</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск</p></bio><bio xml:lang="en"><p>Novosibirsk</p></bio><email xlink:type="simple">morozova@niboch.nsc.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Институт химической биологии и фундаментальной медицины Сибирского отделения Российской академии наук<country>Россия</country></aff><aff xml:lang="en">Institute of Сhemical Biology аnd Fundamental Medicine of Siberian Branch of the Russian Academy of Sciences<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">АО «Вектор-Бест»<country>Россия</country></aff><aff xml:lang="en">JSC “Vector-Best”<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">Новосибирский научно-исследовательский институт травматологии и ортопедии им. Я.Л. Цивьяна Министерства здравоохранения Российской Федерации<country>Россия</country></aff><aff xml:lang="en">Novosibirsk Research Institute of Traumatology and Orthopedics named after Ya.L. Tsivyan of the Ministry of Health of the Russian Federation<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>29</day><month>04</month><year>2021</year></pub-date><volume>25</volume><issue>2</issue><fpage>234</fpage><lpage>245</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Бардашева А.В., Фоменко Н.В., Калымбетова Т.В., Бабкин И.В., Кретьен С.О., Жираковская Е.В., Тикунова Н.В., Морозова В.В., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Бардашева А.В., Фоменко Н.В., Калымбетова Т.В., Бабкин И.В., Кретьен С.О., Жираковская Е.В., Тикунова Н.В., Морозова В.В.</copyright-holder><copyright-holder xml:lang="en">Bardasheva A.V., Fomenko N.V., Kalymbetova T.V., Babkin I.V., Chretien S.O., Zhirakovskaya E.V., Tikunova N.V., Morozova V.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://vavilov.elpub.ru/jour/article/view/2887">https://vavilov.elpub.ru/jour/article/view/2887</self-uri><abstract><p>Проанализированы 72 клинических штамма Klebsiella spp., изолированных в Новосибирске из образцов, полученных от людей. Проведена видовая идентификация штаммов по последовательностям генов 16S рРНК и rpoB. Показано, что в популяции клебсиелл доминировали штаммы Klebsiella pneumoniaе (57 штаммов), остальные 15 штаммов относились к видам K. grimontii, K. aerogenes, K. oxytoca и K. quasipneumoniae. Методом молекулярного серотипирования с использованием последовательности гена wzi штаммы K. pneumoniae были отнесены к двадцати одному K-cеротипу, при этом большую долю составляли вирулентные серотипы K1 и K2. Выявлено, что штаммы K. pneumoniae, полученные от госпитализированных пациентов, обладали максимально выраженной резистентностью к различным классам антибиотиков в отличие от остальных видов клебсиелл. Методом ПЦР в реальном времени обнаружено, что в исследованной популяции присутствуют гены семейств blaSHV, blaTEM, blaCTX и ген blaOXA-48, являющиеся генетическими детерминантами резистентности к бета-лактамам. Показано, что присутствие последовательности blaCTX коррелирует с продукцией штаммом бета-лактамаз расширенного спектра, а фенотипическая устойчивость к карбапенемам обусловлена наличием гена blaOXA-48. При этом генов карбапенемаз vim, ndm, kpc, imp обнаружено не было. Cреди исследованных генов устойчивости к аминогликозидам были найдены гены aph(6)-Id и aadA, однако их наличие не всегда совпадало с фенотипической резистентностью. Устойчивость к фторхинолонам у большинства штаммов сопровождалась присутствием генов aac(6’)-Ib-cr, oqxA, oqxB, qnrB и qnrS в различных комбинациях, при этом наличие только генов oqxA и/или oqxB не коррелировало с устойчивостью к фторхинолонам. Таким образом, обнаружение blaCTX и blaOXA-48 может быть использовано для быстрого выявления продукции беталактамаз расширенного спектра и определения резистентности клебсиелл к карбапенемам, а выявление генов aac(6’)-Ib-cr и/или qnrB/qnrS – для быстрого определения устойчивости к фторхинолонам.</p></abstract><trans-abstract xml:lang="en"><p>72 clinical strains of Klebsiella spp. isolated from samples obtained from humans in Novosibirsk, Russia, were analyzed. Species identification of strains was performed using 16S rRNA and rpoB gene sequences. It was revealed that Klebsiella pneumoniae strains were dominant in the population (57 strains), while the remaining 15 strains were K. grimontii, K. aerogenes, K. oxytoca and K. quasipneumoniae. By molecular serotyping using the wzi gene sequence, K. pneumoniae strains were assigned to twenty-one K-serotypes with a high proportion of virulent K1- and K2-serotypes. It was found that K. pneumoniae strains isolated from the hospitalized patients had a higher resistance to antibiotics compared to the other Klebsiella species. Real-time PCR revealed that the population contained genes of the blaSHV, blaTEM, blaCTX families and the blaOXA-48 gene, which are the genetic determinants of beta-lactam resistance. It has been shown that the presence of the blaCTX sequence correlated with the production of extended-spectrum beta-lactamases, and phenotypic resistance to car-bapenems is due to the presence of the blaOXA-48 gene. At the same time, the carbapenemase genes vim, ndm, kpc, imp were not detected. Among the aminoglycoside resistance genes studied, the aph(6)-Id and aadA genes were found, but their presence did not always coincide with phenotypic resistance. Resistance to fluoroquinolones in the vast majority of strains was accompanied by the presence of the aac(6’)-IB-cr, oqxA, oqxB, qnrB, and qnrS genes in various combinations, while the presence of the oqxA and/or oqxB genes alone did not correlate with resistance to fluoroquinolones. Thus, the detection of blaCTX and blaOXA-48 can be used to quickly predict the production of extended-spectrum beta-lactamases and to determine the resistance of Klebsiella to carbapenems. The detection of the aac(6’)-Ib-cr and/or qnrB/qnrS genes can be used to quickly determine resistance to fluoroquinolones.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Klebsiella</kwd><kwd>молекулярное серотипирование</kwd><kwd>бета-лактамы</kwd><kwd>фторхинолоны</kwd><kwd>аминогликозиды</kwd><kwd>беталактамазы расширенного спектра</kwd><kwd>металло-бета-лактамазы</kwd><kwd>диско-диффузионный анализ</kwd><kwd>генетические детерминанты антибиотикорезистентности</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Klebsiella</kwd><kwd>molecular serotyping</kwd><kwd>beta-lactam</kwd><kwd>fluoroquinolone</kwd><kwd>aminoglycoside</kwd><kwd>extended-spectrum beta-lactamases</kwd><kwd>metallo-beta-lactamases</kwd><kwd>disco-diffusion analysis</kwd><kwd>genetic determinants of antibiotic resistance</kwd></kwd-group><funding-group xml:lang="en"><funding-statement>The study was supported by the Russian Foundation for Basic Research, project 18-29-08015, and State Budgeted Project 0245-2021-0008 for the Institute of Chemical Biology and Fundamental Medicine, Novosibirsk. 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