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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">mimmun</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинская иммунология</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Immunology (Russia)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1563-0625</issn><issn pub-type="epub">2313-741X</issn><publisher><publisher-name>SPb RAACI</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.15789/1563-0625-2012-4-5-383-390</article-id><article-id custom-type="elpub" pub-id-type="custom">mimmun-460</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>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>СПОСОБНОСТЬ ЧИСТЫХ IGG FC-СВЯЗЫВАЮЩИХ БЕЛКОВ СТРЕПТОКОККА ГРУППЫ А ТИПА М22 ИНДУЦИРОВАТЬ ЭКСПЕРИМЕНТАЛЬНЫЙ ГЛОМЕРУЛОНЕФРИТ</article-title><trans-title-group xml:lang="en"><trans-title>PURIFIED IGG F C-BINDING PROTEINS FROM M22 GROUP A STREPTOCOCCUS ARE ABLE TO INDUCE EXPERIMENTAL GLOMERULONEPHRITIS</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бурова</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Burova</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Отдел молекулярной микробиологии 197376, Санкт-Петербург, ул. Академика Павлова, 12.Тел.: (812) 234-68-74. Факс: (812) 234-94-77</p></bio><email xlink:type="simple">lburova@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гупалова</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Pigarevsky</surname><given-names>P. V.</given-names></name></name-alternatives><email xlink:type="simple">lburova@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пигаревский</surname><given-names>П. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Gavrilova</surname><given-names>E. A.</given-names></name></name-alternatives><email xlink:type="simple">lburova@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гаврилова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Seliverstova</surname><given-names>V. G.</given-names></name></name-alternatives><email xlink:type="simple">lburova@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Селиверстова</surname><given-names>В. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Schalen</surname><given-names>K.</given-names></name></name-alternatives><email xlink:type="simple">lburova@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шален</surname><given-names>К.</given-names></name><name name-style="western" xml:lang="en"><surname>Totolyan</surname><given-names>Artem A.</given-names></name></name-alternatives><email xlink:type="simple">lburova@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тотолян</surname><given-names>Артем А.</given-names></name><name name-style="western" xml:lang="en"><surname>Gupalova</surname><given-names>T. V.</given-names></name></name-alternatives><email xlink:type="simple">lburova@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">ФГБУ Научно-исследовательский институт экспериментальной медицины Северо-Западного отделения РАМН, Санкт-Петербург<country>Россия</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Отдел лабораторной медицины Лундского Университета, Лунд, Швеция<country>Россия</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2012</year></pub-date><pub-date pub-type="epub"><day>21</day><month>07</month><year>2014</year></pub-date><volume>14</volume><issue>4-5</issue><fpage>383</fpage><lpage>390</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Бурова Л.А., Гупалова Т.В., Пигаревский П.В., Гаврилова Е.А., Селиверстова В.Г., Шален К.A., Тотолян А.А., 2014</copyright-statement><copyright-year>2014</copyright-year><copyright-holder xml:lang="ru">Бурова Л.А., Гупалова Т.В., Пигаревский П.В., Гаврилова Е.А., Селиверстова В.Г., Шален К., Тотолян А.А.</copyright-holder><copyright-holder xml:lang="en">Burova L.A., Pigarevsky P.V., Gavrilova E.A., Seliverstova V.G., Schalen K., Totolyan A.A., Gupalova T.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://www.mimmun.ru/mimmun/article/view/460">https://www.mimmun.ru/mimmun/article/view/460</self-uri><abstract><p>Резюме. В настоящей работе очищенные стрептококковые IgG Fc-связывающие белки, выделеные из родительского штамма M22 и его изогенных мутантов, дефицитных по синтезу одного из этих белков (Mrp или Emm), изучали на нефритогенность при двукратном внутрикожном введении с неполным адъювантом Фрейнда и последующем внутривенном бустировании через 2 недели. У кроликов, получивших чистые IgG Fс-связывающие белки, выявлены высокие титры анти-IgG, деструктивно-дегенеративные изменения почечных клубочков и продукция провоспалительных цитокинов (IL-1β, TNFα и IL-6) мезангиальными и эндотелиальными клетками клубочков. Инъекции кроликам по аналогичной схеме протеинов А и G вызывали образование анти-IgG в крайне низких титрах и ни у одного из кроликов не выявлено признаков мембранозно-пролиферативного гломерулонефрита, близкого по морфологии с острым гломерулонефритом человека, осложняющим острую стрептококковую инфекцию. Эти результаты коррелировали с данными, полученными в опытах с введением цельных клеток Staphylococcus aureus (штамм Cowan 1) или стрептококков группы G (штамм G148). Оба указанных вида микробов известны как носители IgG Fc-связывающих белков – протеинов А и G соответственно. Полученные данные указывают на уникальную способность стрептококков группы А и их IgG Fc-связывающих белков индуцировать развитие гломерулонефрита, т.е. выступать в роли этиологического фактора острого гломерулонефрита человека. Приведенные в статье данные позволяют заключить, что стрептококковые IgG Fc-связывающие М-подобные белки, относящиеся к факторам патогенности микроба, играют ведущую роль в инициации экспериментального гломерулонефрита. Полученные результаты подтверждают ранее выдвинутое нами положение о роли IgG Fc-связывающих М-подобных белков стрептококка группы А в патогенезе острого экспериментального гломерулонефрита, аналогичного по морфологической картине острому постстрептококковому гломерулонефриту у человека.</p></abstract><trans-abstract xml:lang="en"><p>Abstract. Pathogenesis of acute post-streptococcal glomerulonephritis (APSGN), a major complication of group A streptococcal (GAS) throat or skin disease, remains unclear. Over years, various theories were based on distinct streptococcal extracellular factors, as well as immunological mimicry of streptococci for renal tissue antigens was considered. Previously we reported that a lot of clinical GAS isolates with proven nephritogenic ability show a non-immune binding of monomeric or aggregated IgG. Moreover, using a rabbit model of APSGN, we obtained evidence for important causative role of streptococcal IgG Fc-binding proteins (IgG FcBPs) belonging to the M family surface proteins. I.e., rabbits injected by whole IgG FcBP-positive streptococci showed induction of renal glomerular changes, with deposition of IgG and complement C3, resembling the picture recorded in human APSGN. These typical renal changes were always preceded by development of circulating anti-IgG antibodies. Present study was performed in the same rabbit model. Both purified IgG FcBPs isolated from type M22 GAS were found to elicit glomerular degenerative damage of renal glomeruli comparable to those caused by whole bacteria, as well as induce anti-IgG antibodies, deposition of IgG and C3 complement and production of proinflammatory cytokines (IL-1β, TNFα, IL-6) by glomerular mesangial and endothelial cells. By contrast, rabbits injected with proteins A or G, IgG FcBPs of S. aureus and group G streptococci, respectively, exhibited only low levels of circulating anti-IgG and reversible glomerular changes. In these settings, we have not observed any features of membranousproliferative glomerulonephritis (GN) resembling morphological traits of acute post-streptococcal GN in humans. These data correlated with results obtained after injection of intact Staphylococcus aureus (Cowan 1 strain) or group G streptococci (G148 strain). Both microbial types are known to harbor IgG Fc-binding proteins (А and G, respectively). These results support the idea that GAS IgG FcBPs are unique in their ability to initiate strong post-streptococcal glomerular changes and could be considered as important factors in pathogenesis of APSGN similar to acute post-streptococcal GN in humans.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>стрептококк группы А типа М22</kwd><kwd>изогенные мутанты</kwd><kwd>очищенные IgG Fc-связывающие белки</kwd><kwd>экспериментальный гломерулонефрит</kwd></kwd-group><kwd-group xml:lang="en"><kwd>M22 group A streptococcus</kwd><kwd>isogenic mutants</kwd><kwd>purified IgG Fc-binding proteins</kwd><kwd>experimental glomerulonephritis</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">Бурова Л.А., Гаврилова Е.А., Пигаревский П.В., Селиверстова В.Г., Нагорнев В.А., Шален К., Тотолян Артем А. 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