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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">Acta Naturae</journal-id><journal-title-group><journal-title xml:lang="en">Acta Naturae</journal-title><trans-title-group xml:lang="ru"><trans-title>Acta Naturae</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2075-8251</issn><publisher><publisher-name xml:lang="en">Acta Naturae Ltd</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">10403</article-id><article-id pub-id-type="doi">10.32607/20758251-2017-9-1-75-80</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Research Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Экспериментальные 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">Voltage-Dependent Interaction of Capsaicine and Protons on TRPV1-Receptors</article-title><trans-title-group xml:lang="ru"><trans-title>Особенности ответов TRPV1-рецепторов при их активации протонами, капсаицином и их смесью при разных мембранных потенциалах</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Tsvetkov</surname><given-names>E. A.</given-names></name><name xml:lang="ru"><surname>Цветков</surname><given-names>E. A.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>k.bolshakov@biotechnologies.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Potaрieva</surname><given-names>N. N.</given-names></name><name xml:lang="ru"><surname>Потапьева</surname><given-names>Н. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>k.bolshakov@biotechnologies.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Bolshakov</surname><given-names>K. V.</given-names></name><name xml:lang="ru"><surname>Большаков</surname><given-names>K. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>k.bolshakov@biotechnologies.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт эволюционной физиологии и биохимии им. И.М. Сеченова РАН</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Saint-Petersburg State University</institution></aff><aff><institution xml:lang="ru">Санкт-Петербургский государственный университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2017-03-15" publication-format="electronic"><day>15</day><month>03</month><year>2017</year></pub-date><volume>9</volume><issue>1</issue><issue-title xml:lang="en">VOL 9, NO1 (2017)</issue-title><issue-title xml:lang="ru">ТОМ 9, №1 (2017)</issue-title><fpage>75</fpage><lpage>80</lpage><history><date date-type="received" iso-8601-date="2020-01-17"><day>17</day><month>01</month><year>2020</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2017, Tsvetkov E.A., Potaрieva N.N., Bolshakov K.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2017, Цветков E.A., Потапьева Н.Н., Большаков K.В.</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="en">Tsvetkov E.A., Potaрieva N.N., Bolshakov K.V.</copyright-holder><copyright-holder xml:lang="ru">Цветков E.A., Потапьева Н.Н., Большаков K.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://actanaturae.ru/2075-8251/article/view/10403">https://actanaturae.ru/2075-8251/article/view/10403</self-uri><abstract xml:lang="en"><p>The interaction of TRPV1-receptors agonists (capsaicin and protons) has been studied on cultured CHO cells transfected by TRPV1-receptors. Using the whole-cell patch-clamp approach, it was shown that summation of the currents induced by agonist application was dependent on the membrane potential. The TRPV1-mediated currents induced by the pH and Capsaicin demonstrated arithmetical summation at potentials between 40--40 mV, while they were potentiated at potentials below -40 mV. Currents induced by the pH and Capsaicin combined were higher in comparison with the arithmetic sum of the currents induced by the pH and Capsaicin applied separately at such potentials. Such a potential dependence seems to be a base of the sensitization that is induced by inflammation or pain, when concentrations of proinflammatory mediators acting as TRPV1 agonists are increasing. Further depolarization induced by TRPV1 activation doesn’t generate potentiation, which might serve as a protective mechanism to restrict their activity.</p></abstract><trans-abstract xml:lang="ru"><p>На культуре клеток CHO, трансфицированных плазмидами, кодирующими TRPV1-рецепторы, изучены ответы, вызываемые капсаицином и протонами в отдельности и при их совместной аппликации при разных значениях мембранного потенциала. Методом фиксации потенциала в конфигурации «целая клетка» показано, что вызванные капсаицином и протонами токи суммируются арифметически при потенциалах от 20 до -40 мВ. При потенциалах фиксации ниже -40 мВ наблюдается неаддитивность эффектов агонистов: суммарный ток, регистрируемый при совместной аппликации агонистов, существенно превышает сумму токов, возникающих при аппликации каждого из агонистов в отдельности. Такая потенциал-зависимая потенциация токов через TRPV1-каналы, по всей видимости, лежит в основе сенсибилизации TRPV1-рецепторов при воспалении и боли, когда растут концентрации провоспалительных медиаторов,являющихся агонистами данных рецепторов. Однако деполяризация мембраны, возникающая при активации TRPV1-рецепторов, ограничивает их последующий ответ, что может служить защитным механизмом, ограничивающим их активацию.</p></trans-abstract><kwd-group xml:lang="en"><kwd>TRPV1</kwd><kwd>Capsaicin</kwd><kwd>pH</kwd><kwd>Agonists of TRPV1-receptors</kwd><kwd>Interaction of agonists of TRPV1-receptors</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>TRPV1</kwd><kwd>капсаицин</kwd><kwd>pH</kwd><kwd>агонисты TRPV1-рецепторов</kwd><kwd>взаимодействие агонистов TRPV1-рецепторов</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This work was supported by the RFBR (grant No. 15-04-03957) and the Programme of the Presidium of the Russian Academy of Sciences “Molecular and Cellular Biology”.</funding-statement><funding-statement xml:lang="ru">Работа поддержана РФФИ (грант № 15-04-03957) и программой Президиума РАН «Молекулярная и клеточная биология».</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>[1] Zhu M.X. // TRP channels // Boca Raton: Taylor &amp; Francis, 2011. 2011</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>[2] Caterina M.J., Schumacher M.A., Tominaga M., Rosen T.A., Levine J.D., Julius D. // Nature 1997, V.389, №6653, P.816-824</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>[3] Blumberg P.M., Pearce L.V., Lee J. // Curr. 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