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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="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Problems of Virology</journal-id><journal-title-group><journal-title xml:lang="en">Problems of Virology</journal-title><trans-title-group xml:lang="ru"><trans-title>Вопросы вирусологии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0507-4088</issn><issn publication-format="electronic">2411-2097</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">12134</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>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Analysis of the Polymorphism of the Genome region of HIV-1 encoding the Fusion Protein</article-title><trans-title-group xml:lang="ru"><trans-title>Анализ полиморфизма области генома ВИЧ-1, кодирующей белок слияния</trans-title></trans-title-group></title-group><pub-date date-type="pub" iso-8601-date="2012-08-15" publication-format="electronic"><day>15</day><month>08</month><year>2012</year></pub-date><volume>57</volume><issue>4</issue><issue-title xml:lang="en">VOL 57, NO4 (2012)</issue-title><issue-title xml:lang="ru">ТОМ 57, №4 (2012)</issue-title><fpage>9</fpage><lpage>12</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 ©; 2012, Vasil’ev A.V., Akhmerov K.R., Salamov G.G., Kazennova E.V., Bobkova M.R.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2012, Васильев А.В., Ахмеров К.Р., Саламов Г.Г., Казеннова Е.В., Бобкова М.Р.</copyright-statement><copyright-year>2012</copyright-year><copyright-holder xml:lang="en">Vasil’ev A.V., Akhmerov K.R., Salamov G.G., Kazennova E.V., Bobkova M.R.</copyright-holder><copyright-holder xml:lang="ru">Васильев А.В., Ахмеров К.Р., Саламов Г.Г., Казеннова Е.В., Бобкова М.Р.</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://virusjour.crie.ru/jour/article/view/12134">https://virusjour.crie.ru/jour/article/view/12134</self-uri><abstract xml:lang="en"><p>The prevalence of the mutations associated with HIV fusion inhibitor enfuvirtide resistance in Russia and CIS countries was studied. enfuvirtide resistance mutations were not observed among studied viruses in Russia and CIS countries so far. It was found that high rate (35%) of natural polymorphism mutations were associated with enfuvirtide hypersusceptibility. It was also found that high frequency of accessory mutations N126K and E137K were observed in the HR2 region (27.5%). The accessory mutations in HR2 can contribute to increased resistance and improve viral fitness. Our data were compared with those obtained in similar previous studies.</p></abstract><trans-abstract xml:lang="ru"><p>Исследована распространенность мутаций резистентности ВИЧ-1 к ингибитору слияния энфувиртиду на территории России и стран СНГ среди пациентов, не получавших энфувиртид в процессе лечения. Мутации лекарственной устойчивости к энфувиртиду выявлены не были. Отмечена высокая частота встречаемости (35%) мутаций природного полиморфизма, ассоциированных с повышенной чувствительностью к энфувиртиду. Также с высокой частотой (27,5%) встречались вспомогательные мутации устойчивости N126K и E137K на участке HR2. Данные мутации могут способствовать развитию резистентности ВИЧ-1 к энфувиртиду и повышению жизнеспособности вируса в случае появления мутаций резистентности на участке HR1. Также проведено сравнение полученных результатов с данными аналогичных зарубежных исследований.</p></trans-abstract><kwd-group xml:lang="en"><kwd>human immunodeficiency virus</kwd><kwd>drug resistance mutations</kwd><kwd>accessory mutations</kwd><kwd>enfuvirtide</kwd><kwd>fusion inhibitor</kwd><kwd>natural polymorphism</kwd><kwd>gp41 protein</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>вирус иммунодефицита человека</kwd><kwd>мутации лекарственной устойчивости</kwd><kwd>вспомогательные мутации</kwd><kwd>энфувиртид</kwd><kwd>ингибитор слияния</kwd><kwd>природный полиморфизм</kwd><kwd>белок gp41</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Бартлетт Дж., Галант Дж., Фам П. Клинические аспекты ВИЧ-инфекции. 2009-2010. - М.: Р. Валент, 2010.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Фузеон: монография по препарату. Базель: Ф. Хоффманн Ля Рош Лтд., 2003.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Хоффман К., Рокштро Ю. К. Лечение ВИЧ-инфекции 2009. -М.: Р. Валент, 2010.</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>Aquaro S., D'Arrigo R., Svicher V. et al. Specific mutations in HIV-1 gp41 are associated with immunological success in HIV-1-infected patients receiving enfuvirtide treatment // J. Antimicrob. Chemother. - 2006. - Vol. 58, N 4. - P. 714-722.</mixed-citation></ref><ref id="B5"><label>5.</label><mixed-citation>Bobkov A., Garaev M. M., Rzhaninova A. et al. Molecular epidemiology of HIV-1 in the former Soviet Union: analysis of env V3 sequences and their correlation with epidemiologic data // AIDS. -1994. - Vol. 8, N 5. - P. 619-624.</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>Cecilia C., Garcia E., Marfil S. et al. Genotypic evolution of T-20 resistance-associated mutations in heavily treated HIV infected patients on long-term treatment with T-20 // 3rd European HIV Drug Resistance Workshop. - Athens, 2005. - P. 7.</mixed-citation></ref><ref id="B7"><label>7.</label><mixed-citation>Guide to Management of HIV Drug Resistance, Antiretrovirals Pharmacokinetics and Viral Hepatitis in HIV Infected Subjects. - 9-th Ed. -Barcelona: Fundacio de Lluita contra la SIDA, 2009.</mixed-citation></ref><ref id="B8"><label>8.</label><mixed-citation>Hudelson S. E., Marlowe N., Huang W. et al. Analysis of HIV type 1 gp41 and enfuvirtide susceptibility among men in the United States who were HIV infected prior to availability of HIV entry inhibitors // AIDS Res. Hum. Retrovirus. - 2009. - Vol. 25, N 7. - P. 701-705.</mixed-citation></ref><ref id="B9"><label>9.</label><mixed-citation>Qadir M. I., Malik S. A. Genetic variation in the HR region of the env gene of HIV: a perspective for resistance to HIV fusion Inhibitors // AIDS Res. Hum. Retrovirus. - 2010. - Vol. 26, N 11. - P. 1-7.</mixed-citation></ref><ref id="B10"><label>10.</label><mixed-citation>Qadir M. I., Malik S. A. HIV fusion inhibitors // Rev. Med. Virol. -2010. - Vol. 20. - P. 23-33.</mixed-citation></ref><ref id="B11"><label>11.</label><mixed-citation>Xu L., Pozniak A., Wildfire A et al. Emergence and evolution of enfuvirtide resistance following long-term therapy involves heptad repeat 2 mutations within gp41 // Antimicrob. Agents Chemother. - 2005. - Vol. 49, N 3. - P. 1113-1119.</mixed-citation></ref></ref-list></back></article>
