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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 pub-id-type="doi">10.21294/1814-4861-2022-21-3-70-80</article-id><article-id custom-type="elpub" pub-id-type="custom">oncotomsk-2165</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>Кандидемия у онкологических больных: фенотипические и молекулярно-генетические характеристики резистентности к противогрибковым лекарственным средствам, гены факторов патогенности Candida spp.</article-title><trans-title-group xml:lang="en"><trans-title>Candidemia in cancer patients: phenotypical and molecular-genetic characteristics of antifungal drug resistance, pathogenic factor genes of Candida spp.</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1405-3536</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Багирова</surname><given-names>Н. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Bagirova</surname><given-names>N. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Багирова Наталия Сергеевна, доктор медицинских наук, ведущий научный сотрудник лаборатории микробиологической</p><p>115522, г. Москва, Каширское шоссе, 24</p></bio><bio xml:lang="en"><p>Nataliya S. Bagirova, MD, DSc, Leading Researcher of the Microbiological Laboratory</p><p>23, Kashirskoe shosse, 115478, Moscow</p></bio><email xlink:type="simple">nbagirova@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2374-3646</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Горемыкина</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Goremykina</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Горемыкина Евгения Андреевна, магистрант; стажер-исследователь лаборатории антимикробных препаратов</p><p>142290, г. Пущино, пр. Науки, 3; 142279, г. Серпухов, п. Оболенск, Территория «Квартал А», 24</p></bio><bio xml:lang="en"><p>Evgenia A. Goremykina, graduate student; Research Trainee, Antimicrobials Lab.</p><p>3, Nauki Ave., 142290, Pushchino; 24, Territory “Quarter A”, 142279, Obolensk, Serpukhov</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/0000-0002-4976-0145</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Слукин</surname><given-names>П. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Slukin</surname><given-names>P. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Слукин Павел Владимирович, научный сотрудник лаборатории антимикробных препаратов</p><p>142279, г. Серпухов, п. Оболенск, Территория «Квартал А», 24</p></bio><bio xml:lang="en"><p>Pavel V. Slukin, Researcher, Antimicrobials Lab.</p><p>24, Territory “Quarter A”, 142279, Obolensk, Serpukhov</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/0000-0002-2829-5117</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хохлова</surname><given-names>О. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Khokhlova</surname><given-names>O. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Хохлова Ольга Евгеньевна, доктор биологических наук, профессор, факультет биологической безопасности; ведущий научный сотрудник лаборатории антимикробных препаратов</p><p>142279, г. Серпухов, п. Оболенск, Территория «Квартал А», 243</p></bio><bio xml:lang="en"><p>Olga E. Khokhlova, DSc, Professor; Leading Researcher, Antimicrobials Lab.</p><p>3, Nauki Ave., 142290, Pushchino; 24, Territory “Quarter A”, 142279, Obolensk, Serpukhov</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/0000-0001-6053-2621</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фурсова</surname><given-names>Н. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Fursova</surname><given-names>N. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Фурсова Надежда Константиновна, кандидат биологических наук, доцент, факультет биологической безопасности; ведущий научный сотрудник лаборатории антимикробных препаратов</p><p>Серпухов, п. Оболенск, Территория «Квартал А», 24</p></bio><bio xml:lang="en"><p>Nadezhda K. Fursova, PhD, Associate Professor; Leading Researcher, Antimicrobials Lab</p><p>3, Nauki Ave., 142290, Pushchino; 24, Territory “Quarter A”, 142279, Obolensk, Serpukhov</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/0000-0003-3077-0447</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Петухова</surname><given-names>И. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Petukhova</surname><given-names>I. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Петухова Ирина Николаевна, доктор медицинских наук, ведущий научный сотрудник лаборатории микробиологической</p><p>115522, г. Москва, Каширское шоссе, 24</p></bio><bio xml:lang="en"><p>Irina N. Petukhova, MD, DSc, Leading Researcher of the Microbiological Laboratory</p><p>23, Kashirskoe shosse, 115478, Moscow</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/0000-0003-4294-1995</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Григорьевская</surname><given-names>З. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Grigorievskaya</surname><given-names>Z. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Григорьевская Злата Валерьевна, доктор медицинских наук, заведующая лабораторией микробиологической</p><p>115522, г. Москва, Каширское шоссе, 24</p></bio><bio xml:lang="en"><p>Zlata V. Grigorievskaya, MD, DSc, Head of the Microbiological Laboratory</p><p>23, Kashirskoe shosse, 115478, Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «Национальный медицинский исследовательский центр онкологии им. Н.Н. Блохина» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>N.N. Blokhin National Medical Research Center of Oncology of the Ministry of Health of the Russia</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБОУ ВО «Пущинский государственный естественно-научный институт»; ФБУН «Государственный научный центр прикладной микробиологии и биотехнологии» Роспотребнадзора</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pushchino State Institute of Natural Sciences; State Research Center for Applied Microbiology and Biotechnology of Rospotrebnadzor</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ФБУН «Государственный научный центр прикладной микробиологии и биотехнологии» Роспотребнадзора</institution><country>Россия</country></aff><aff xml:lang="en"><institution>State Research Center for Applied Microbiology and Biotechnology of Rospotrebnadzor</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>29</day><month>06</month><year>2022</year></pub-date><volume>21</volume><issue>3</issue><fpage>70</fpage><lpage>80</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Багирова Н.С., Горемыкина Е.А., Слукин П.В., Хохлова О.Е., Фурсова Н.К., Петухова И.Н., Григорьевская З.В., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Багирова Н.С., Горемыкина Е.А., Слукин П.В., Хохлова О.Е., Фурсова Н.К., Петухова И.Н., Григорьевская З.В.</copyright-holder><copyright-holder xml:lang="en">Bagirova N.S., Goremykina E.A., Slukin P.V., Khokhlova O.E., Fursova N.K., Petukhova I.N., Grigorievskaya Z.V.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" 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/2165">https://www.siboncoj.ru/jour/article/view/2165</self-uri><abstract><sec><title>Актуальность</title><p>Актуальность. Мировая тенденция стремительного увеличения уровня резистентности к противогрибковым препаратам, которая связана со многими факторами, диктует необходимость постоянного мониторинга таксономической структуры нозокомиальных возбудителей инвазивных грибковых инфекций и их чувствительности к антифунгальным лекарственным средствам с целью постоянной коррекции наиболее оптимальной тактики профилактики и лечения инвазивных грибковых инфекций.</p><p>Цель исследования – определение чувствительности к антифунгальным препаратам основных возбудителей при кандидемии у онкологических больных, а также определение генов резистентности и факторов патогенности.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. Проанализировано 82 штамма Candida spp., выделенных из крови онкологических больных в течение 2015–21 гг. Определение минимальных ингибирующих концентраций флуконазола, вориконазола, позаконазола, анидулафунгина и микафунгина выполняли градиентным методом (Е-тест, BioMerieux, France). Для оценки значений МИК использовали критерии EUCAST и CLSI. Определены гены, ассоциированные с факторами патогенности и резистентности к противогрибковым лекарственным средствам.</p></sec><sec><title>Результаты</title><p>Результаты. По результатам нашего исследования (критерии EUCAST) в качестве эмпирической терапии инвазивного кандидоза (в т. ч. кандидемии) наименее эффективными препаратами являются триазолы, особенно флуконазол, к которому статистически значимо чаще штаммы Candida spp. резистентны по сравнению с вориконазолом (47,2 % против 23,2 %, p&lt;0,01) и позаконазолом (47,2 % против 30,4 %, p&gt;&lt;0,05). Наибольшая активность in vitro отмечается у препаратов группы эхинокандинов, причем анидулафунгин в 2 раза активнее микафунгина (4,1 % резистентных штаммов против 11,4 %), но статистически значимой разницы при этом не выявлено. Гены ERG11 и FKS1, ассоциированные с резистентностью к противогрибковым препаратам, были выявлены у 28,6 % штаммов Candida spp.. Ген ERG11 детектирован в 8,6 % случаев, причем только у штаммов Candida albicans. Ген FKS1 определен у 20,0 % штаммов (85,7 % – C. parapsilosis, по 7,1 % – C. tropicalis и C. glabrata). Гены факторов патогенности определены у 78,6 % штаммов C. albicans и у 79,1 % изолятов C. parapsilosis. Заключение. Молекулярно-генетические методы выявления штаммов Candida spp., несущих гены резистентности к антифунгальным препаратам, определение факторов патогенности –&gt;&lt;  0,01) и позаконазолом (47,2 % против 30,4 %, p&lt;0,05). Наибольшая активность in vitro отмечается у препаратов группы эхинокандинов, причем анидулафунгин в 2 раза активнее микафунгина (4,1 % резистентных штаммов против 11,4 %), но статистически значимой разницы при этом не выявлено. Гены ERG11 и FKS1, ассоциированные с резистентностью к противогрибковым препаратам, были выявлены у 28,6 % штаммов Candida spp.. Ген ERG11 детектирован в 8,6 % случаев, причем только у штаммов Candida albicans. Ген FKS1 определен у 20,0 % штаммов (85,7 % – C. parapsilosis, по 7,1 % – C. tropicalis и C. glabrata). Гены факторов патогенности определены у 78,6 % штаммов C. albicans и у 79,1 % изолятов C. parapsilosis. Заключение. Молекулярно-генетические методы выявления штаммов Candida spp., несущих гены резистентности к антифунгальным препаратам, определение факторов патогенности –&gt;&lt; 0,05). Наибольшая активность in vitro отмечается у препаратов группы эхинокандинов, причем анидулафунгин в 2 раза активнее микафунгина (4,1 % резистентных штаммов против 11,4 %), но статистически значимой разницы при этом не выявлено. Гены ERG11 и FKS1, ассоциированные с резистентностью к противогрибковым препаратам, были выявлены у 28,6 % штаммов Candida spp.. Ген ERG11 детектирован в 8,6 % случаев, причем только у штаммов Candida albicans. Ген FKS1 определен у 20,0 % штаммов (85,7 % – C. parapsilosis, по 7,1 % – C. tropicalis и C. glabrata). Гены факторов патогенности определены у 78,6 % штаммов C. albicans и у 79,1 % изолятов C. parapsilosis.</p></sec><sec><title>Заключение</title><p>Заключение. Молекулярно-генетические методы выявления штаммов Candida spp., несущих гены резистентности к антифунгальным препаратам, определение факторов патогенности – это перспективные направления для поиска биомаркеров, облегчающих сложную задачу трактовки результатов микробиологического исследования по оценке способности штаммов Candida spp. к развитию инвазивных микозов.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Relevance</title><p>Relevance. The global trend of rapid increase in resistance to antifungal drugs due to multiple factors, dictates the need for continuous monitoring of taxonomic structure and susceptibility of nosocomial pathogens, causing invasive fungal infections, for permanent correction of the optimal prevention and treatment strategies.</p></sec><sec><title>Purpose</title><p>Purpose: to determine antifungal susceptibility of the main yeast pathogens in candidemia in cancer patients, as well as to determine resistance genes and pathogenic factor genes.</p></sec><sec><title>Material and Methods</title><p>Material and Methods. Eighty-two strains of Candida spp. isolated from blood of cancer patients from 2015 to 2021 were analyzed. Minimum inhibitory concentrations of fuconazole, voriconazole, posaconazole, anidulafungin and micafungin were determined by a gradient method (E-test, BioMerieux, France). The EUCAST and CLSI criteria were used for MIC value assessment. The genes, associated with pathogenicity factors, and resistance to antifungal drugs were identifed.</p></sec><sec><title>Results</title><p>Results. Our study results based on EUCAST 2020, v.10.0 criteria showed that triazoles, especially fuconazole, were the least effective drugs in empirical therapy for invasive candidiasis (including candidemia). Resistance of Candida spp. fuconazole was superior to that of voriconazole (47.2 % vs 23.2 %, respectively, p&lt;0.01) and posaconazole (47.2 % vs 30.4 %, respectively, p&gt;&lt;0.05). The highest in vitro activity was observed in echinocandins, and anidulafungin was 2 times more active than micafungin (4.1 % of resistant strains vs 11.4 %, respectively), with no statistically signifcant difference (p&gt;0.05). The ERG11 and FKS1 genes associated with resistance to antifungal drugs were detected in 28.6 % of Candida spp. strains. The ERG11 gene was detected in 8.6 % of cases, exclusively in Candida albicans strains. The FKS1 gene was identifed in 20.0 % of strains (85.7 % of them were C. parapsilosis, 7.1 % each were C. tropicalis and C. glabrata). Pathogenic factor genes were identifed in 78.6 % of C. albicans and in 79.1 % of C. parapsilosis strains.</p></sec><sec><title>Conclusion</title><p>Conclusion. Molecular genetic methods for the detection of Candida spp strains carrying resistance genes to antifungal drugs, and the determination of pathogenicity factors are promising trends in searching for biomarkers. They facilitate interpretation of results of microbiological study to assess the ability of Candida spp. strains to develop invasive mycoses.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>Candida spp.</kwd><kwd>кандидемия</kwd><kwd>резистентность</kwd><kwd>флуконазол</kwd><kwd>вориконазол</kwd><kwd>позаконазол</kwd><kwd>анидулафунгин</kwd><kwd>микафунгин</kwd><kwd>ERG11</kwd><kwd>FKS1</kwd><kwd>факторы патогенности</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Candida spp.</kwd><kwd>candidemia</kwd><kwd>resistance</kwd><kwd>fluconazole</kwd><kwd>voriconazole</kwd><kwd>posaconazole</kwd><kwd>anidulafungin</kwd><kwd>micafungin</kwd><kwd>ERG11</kwd><kwd>FKS1</kwd><kwd>pathogenic factors</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">Alves J., Palma P., Azevedo D., Rello J. Candidemia in the patient with malignancy. 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